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  • OpenGL performance on rendering "virtual gallery" (textures)

    - by maticus
    I have a considerable (120-240) amount of 640x480 images that will be displayed as textured flat surfaces (4 vertex polygons) in a 3D environment. About 30-50% of them will be visible in a given frame. It is possible for them to crossover. Nothing else will be present in the environment. The question is - will the modern and/or few-years-old (lets say Radeon 9550) GPU cope with that, and what frame rate can I expect? I aim for 20FPS, but 30-40 would be nice. Would changing the resolution to 320x240 make it more probable to happen? I do not have any previous experience with performance issues of 3D graphics on modern GPUs, and unfortunately I must make a design choice. I don't want to waste time on doing something that couldn't have worked :-)

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  • Why does DEP kill IE when accessing Microsoft FTP?

    - by Sammy
    I start up IE (9.0.8112.16421) with about:blank and I go to ftp://ftp.microsoft.com/ I press Alt, click View and then Open FTP Site in Windows Explorer. At this point IE stops responding and eventually crashes (though the window is still active, sometimes) and I get the usual Windows dialog box saying that the program has stopped working. From this dialog box I click on the option to try to find solutions to the problem and the progress bar just keeps scrolling without giving me any result page whatsoever, so I have to abort by clicking Cancel. Then I get the bubble type of pop-up message from the system tray saying that DEP has stopped the program from executing. What gives? Why would DEP (part of Microsoft Windows) be preventing IE (a Microsoft product) from performing a perfectly legitimate action from Microsoft's own FTP site? The OS is Windows Vista HP SP2, Swedish locale. Screenshots as follows... Update: I normally have UAC disabled, but I have discovered that enabling it has an effect on IE when I click the FTP option from the View menu, just as I suspected. I basically tried starting IE in its 32-bit and 64-bit version, with and without add-ons, and switching UAC on and off, and then trying to go to View and the FTP option (as shown above). Here are the results. With UAC off and DEP on Action: IE 32-bit, normal start, go to ftp://ftp.microsoft.com/, view menu, FTP option. Result: crash Action: IE 32-bit, extoff, go to ftp://ftp.microsoft.com/, view menu, FTP option. Result: crash Action: IE 64-bit, normal start, go to ftp://ftp.microsoft.com/, view menu, FTP option. Result: information & warning message Action: IE 64-bit, extoff, go to ftp://ftp.microsoft.com/, view menu, FTP option. Result: information & warning message This is the information and warning message I get if I use IE 64-bit: The first message is an FTP proxy warning. It says that the folder ftp://ftp.microsoft.com/ will be write-protected because proxy server is not configured to allow full access. It goes on to say that if I want to move, paste, change name or delete files I must use another type of proxy, and that I should contact the system admin for more information (the usual recommendation when they have no clue of what's going on). What the heck is all this about? I don't even use a proxy server, as you can see from the next screenshot (Internet Options, Connections, LAN settings dialog). That second message only states that the FTP site cannot be viewed in (Windows) Explorer. With UAC off, I always get these two messages when running the 64-bit version of IE. With UAC on and DEP on Action: IE 32-bit, normal start, go to ftp://ftp.microsoft.com/, view menu, FTP option. Result: crash Action: IE 32-bit, extoff, go to ftp://ftp.microsoft.com/, view menu, FTP option. Result: security warning message, prompts to allow action Action: IE 64-bit, normal start, go to ftp://ftp.microsoft.com/, view menu, FTP option. Result: security warning message, prompts to allow action Action: IE 64-bit, extoff, go to ftp://ftp.microsoft.com/, view menu, FTP option. Result: security warning message, prompts to allow action As you can see from this list, if I have UAC enabled I actually get rid of these messages and opening the FTP site in Windows Explorer (from IE) actually works (except for 32-bit version which still crashes). Here is the security warning message: The fact that the 32-bit IE still crashes could be an indicator that this has something to do with one or several add-ons in that bit-version of IE. The 32-bit IE doesn't crash if it's started with the extoff flag. If this is affecting only the 32-bit IE then it's only normal that the 64-bit IE doesn't have this problem because it would not be using any of the add-ons used by the 32-bit version, they are not compatible with 64-bit (although some add-ons work both with 32-bit and 64-bit IE). Figuring out which add-on (if any) is causing this problem is a whole new question... but I seem to be closer to an answer now, and a possible solution. I could of course just add IE (32-bit) in the exclusion list of DEP. In fact, I have already tested this and it causes IE to perform this task without hiccups. But I don't really want to disable DEP, or force it on all Windows programs and services (except the ones I strictly specify in the exception list). (In other words DEP can't really be completely disabled, you can only switch between two modes of operation.) Update 2: This is interesting... I start 32-bit IE, go to ftp://ftp.microsoft.com/ and click on View, and Open FTP Site in Windows Explorer. The result is a crash!! Then I start 32-bit IE with extoff flag to disable add-ons, I go to ftp://ftp.microsoft.com/ and click on View, and Open FTP Site in Windows Explorer. I get the security warning, as expected with UAC enabled, and it opens up in Windows Explorer. Now... I close Windows Explorer, and I close IE. I then start 32-bit IE (normal start, with add-ons), I go to ftp://ftp.microsoft.com/ and click on View, and Open FTP Site in Windows Explorer. Now this time it doesn't crash! Instead, I get the screenshot number 5 as seen above. This is the FTP proxy warning message. Now get this... if I click the close button to get rid of this message, what happens is that Firefox starts up, and it goes to ftp://ftp.microsoft.com/ The fact that this works with 32-bit IE (with add-ons) the second time around, is because I am still logged in as anonymous to the FTP server. The log-in has not timed out yet. Standard log-in timeout for FTP servers is usually 60 to 120 seconds. I got logged in to it the first time I ran 32-bit IE with the extoff flag (no add-ons) which actually works and connects using Windows Explorer. Update 3: The connection to the FTP server has timed out by now. So now if I run 32-bit IE (with add-ons) and repeat the steps as before it crashes, just as expected... In conclusion: If I have already been connected to the FTP server via Windows Explorer, and I go to this FTP address in 32-bit IE and I pick the FTP option from the view menu to open it in Windows Explorer, it gives me a FTP proxy server warning and then opens the address in default web browser (Firefox in my case). If I have not been connected to the FTP server via Windows Explorer previously, and I go to this FTP address in 32-bit IE and I pick the FTP option from the view menu top open it in Windows Explorer, then it crashes IE! This is just great... It's not that I care much for using Internet Explorer or the Windows Explorer to log in to FTP servers. This just shows why IE is not the best browser choice. This reminds me of the time when Microsoft was enforcing the use of Internet Explorer as default browser for opening web links and other web resources, despite the fact that the user had installed an alternative browser on the system. Even if the user explicitly set the default browser to be something else and not Internet Explorer in the Windows options, IE would still pop up sometimes, depending on what web resources the user was trying to access. Setting default browser had no effect. It was hard-coded that IE is the browser of choice, especially when accessing Microsoft product or help pages. The web page would actually say that you are not using IE, and that you must open it in IE to view it. Unfortunately you would not be able to open it manually in a different browser by simply copying and pasting the URL from the address bar, because it would show a different URL, and the original URL would re-direct to the "you are using the wrong browser" page so you would not have the time to cut it to clipboard. Thankfully those days are over. Now-days Microsoft is forced to distribute IE and WMP free versions of Windows for the EU market. The way it should be! These programs have to be optional, not mandatory.

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  • Why i disconnect every few seconds? using USB wireless adapter

    - by Rev3rse
    i know it's for ubuntu questions..but mint and ubuntu are very similiar and i had the same problem with linux ubuntu too..so i think this is the right place for my question anyway i don't have experience with drivers and other things,after installing Linux on my machine( i did dist-upgrade btw) everything seem to be great because i didn't have to install any driver, after a while i realized that my connection stop after few minutes(actually it shows that I'm connected but it's not) so i have to reconnect and after few minutes it disconnect again. I'm using Alfa USB wireless adapter AWS036H, and my Linux version is 11 i think the driver i'm using is Realtek i searched in the Internet and i found nothing. these are some outputs of few things people usually ask for: Note: I'm NOT using a laptop. dmsg: [19445.604448] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=2.174.220.77 DST=192.168.1.6 LEN=52 TOS=0x00 PREC=0x00 TTL=104 ID=10466 DF PROTO=TCP SPT=55150 DPT=6881 WINDOW=8192 RES=0x00 SYN URGP=0 [19448.164050] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=192.168.1.254 DST=192.168.1.6 LEN=56 TOS=0x00 PREC=0x00 TTL=255 ID=41982 PROTO=ICMP TYPE=3 CODE=0 [SRC=192.168.1.6 DST=91.189.88.33 LEN=52 TOS=0x00 PREC=0x00 TTL=63 ID=7566 DF PROTO=TCP INCOMPLETE [8 bytes] ] [19465.079565] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=80.128.216.31 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=113 ID=5100 DF PROTO=TCP SPT=50169 DPT=6881 WINDOW=8192 RES=0x00 SYN URGP=0 [19486.270328] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=90.130.13.122 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=109 ID=22207 PROTO=UDP SPT=6881 DPT=6881 LEN=28 [19497.480522] wlan0: deauthenticating from 00:24:c8:4b:46:e0 by local choice (reason=3) [19497.593276] cfg80211: All devices are disconnected, going to restore regulatory settings [19497.593282] cfg80211: Restoring regulatory settings [19497.593346] cfg80211: Calling CRDA to update world regulatory domain [19497.638740] cfg80211: Updating information on frequency 2412 MHz for a 20 MHz width channel with regulatory rule: [19497.638745] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [19497.638749] cfg80211: Updating information on frequency 2417 MHz for a 20 MHz width channel with regulatory rule: [19497.638753] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [19497.638756] cfg80211: Updating information on frequency 2422 MHz for a 20 MHz width channel with regulatory rule: [19497.638760] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [19497.638763] cfg80211: Updating information on frequency 2427 MHz for a 20 MHz width channel with regulatory rule: [19497.638766] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [19497.638770] cfg80211: Updating information on frequency 2432 MHz for a 20 MHz width channel with regulatory rule: [19497.638773] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [19497.638776] cfg80211: Updating information on frequency 2437 MHz for a 20 MHz width channel with regulatory rule: [19497.638780] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [19497.638783] cfg80211: Updating information on frequency 2442 MHz for a 20 MHz width channel with regulatory rule: [19497.638787] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [19497.638790] cfg80211: Updating information on frequency 2447 MHz for a 20 MHz width channel with regulatory rule: [19497.638794] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [19497.638797] cfg80211: Updating information on frequency 2452 MHz for a 20 MHz width channel with regulatory rule: [19497.638801] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [19497.638804] cfg80211: Updating information on frequency 2457 MHz for a 20 MHz width channel with regulatory rule: [19497.638807] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [19497.638811] cfg80211: Updating information on frequency 2462 MHz for a 20 MHz width channel with regulatory rule: [19497.638814] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [19497.638817] cfg80211: Updating information on frequency 2467 MHz for a 20 MHz width channel with regulatory rule: [19497.638821] cfg80211: 2457000 KHz - 2482000 KHz @ KHz), (300 mBi, 2000 mBm) [19497.638824] cfg80211: Updating information on frequency 2472 MHz for a 20 MHz width channel with regulatory rule: [19497.638828] cfg80211: 2457000 KHz - 2482000 KHz @ KHz), (300 mBi, 2000 mBm) [19497.638831] cfg80211: Updating information on frequency 2484 MHz for a 20 MHz width channel with regulatory rule: [19497.638835] cfg80211: 2474000 KHz - 2494000 KHz @ KHz), (300 mBi, 2000 mBm) [19497.638838] cfg80211: World regulatory domain updated: [19497.638841] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [19497.638845] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [19497.638848] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [19497.638852] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [19497.638855] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [19497.638859] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [19513.145150] wlan0: authenticate with 00:24:c8:4b:46:e0 (try 1) [19513.146910] wlan0: authenticated [19513.252775] wlan0: associate with 00:24:c8:4b:46:e0 (try 1) [19513.255149] wlan0: RX AssocResp from 00:24:c8:4b:46:e0 (capab=0x411 status=0 aid=2) [19513.255154] wlan0: associated [19515.675091] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=91.79.8.40 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x20 TTL=110 ID=42720 DF PROTO=TCP SPT=1945 DPT=6881 WINDOW=65535 RES=0x00 SYN URGP=0 [19525.684312] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=78.13.80.169 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=109 ID=49890 DF PROTO=TCP SPT=53401 DPT=6881 WINDOW=16384 RES=0x00 SYN URGP=0 [19551.856766] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=85.228.39.93 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=103 ID=1162 PROTO=UDP SPT=6881 DPT=6881 LEN=28 [19564.623005] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=90.202.21.238 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=114 ID=17881 PROTO=UDP SPT=6881 DPT=6881 LEN=28 [19584.855364] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=2.49.151.87 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=117 ID=31716 PROTO=UDP SPT=6881 DPT=6881 LEN=28 [19604.688647] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=109.225.124.155 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=112 ID=6656 PROTO=UDP SPT=6881 DPT=6881 LEN=28 [19626.362529] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=81.184.50.41 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=114 ID=23241 DF PROTO=TCP SPT=1416 DPT=6881 WINDOW=65535 RES=0x00 SYN URGP=0 [19645.040906] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=92.250.245.244 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=51 ID=0 DF PROTO=TCP SPT=50061 DPT=6881 WINDOW=16384 RES=0x00 SYN URGP=0 [19665.212659] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=87.183.3.18 DST=192.168.1.6 LEN=52 TOS=0x00 PREC=0x00 TTL=111 ID=1689 DF PROTO=TCP SPT=62817 DPT=6881 WINDOW=8192 RES=0x00 SYN URGP=0 [19685.036415] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=78.13.80.169 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=109 ID=50638 DF PROTO=TCP SPT=49624 DPT=6881 WINDOW=16384 RES=0x00 SYN URGP=0 [19705.487915] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=217.122.17.82 DST=192.168.1.6 LEN=56 TOS=0x00 PREC=0x00 TTL=112 ID=19070 DF PROTO=TCP SPT=54795 DPT=6881 WINDOW=8192 RES=0x00 SYN URGP=0 [19726.779185] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=80.88.116.239 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=109 ID=32168 DF PROTO=TCP SPT=57330 DPT=6881 WINDOW=8192 RES=0x00 SYN URGP=0 [19744.755673] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=109.124.5.43 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=113 ID=2288 DF PROTO=TCP SPT=6475 DPT=6881 WINDOW=65535 RES=0x00 SYN URGP=0 [19764.449183] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=79.216.35.19 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=113 ID=4281 PROTO=UDP SPT=6881 DPT=6881 LEN=28 [19784.456189] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=81.82.25.149 DST=192.168.1.6 LEN=52 TOS=0x00 PREC=0x00 TTL=114 ID=1866 DF PROTO=TCP SPT=59507 DPT=6881 WINDOW=8192 RES=0x00 SYN URGP=0 [19804.836687] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=81.56.199.3 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=108 ID=14749 PROTO=UDP SPT=6881 DPT=6881 LEN=28 [19824.812685] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=186.28.7.159 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=107 ID=44686 PROTO=UDP SPT=23418 DPT=6881 LEN=28 [19847.683314] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=78.13.80.169 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=108 ID=63046 DF PROTO=TCP SPT=52192 DPT=6881 WINDOW=16384 RES=0x00 SYN URGP=0 [19884.711455] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=84.146.24.238 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=113 ID=27914 PROTO=UDP SPT=6881 DPT=6881 LEN=28 [19884.983589] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=2.107.130.61 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=112 ID=7742 PROTO=UDP SPT=6881 DPT=6881 LEN=28 [19905.681078] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=95.21.11.121 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=114 ID=31775 PROTO=UDP SPT=6881 DPT=6881 LEN=28 [19926.035707] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=109.76.132.55 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=113 ID=28140 DF PROTO=TCP SPT=51905 DPT=6881 WINDOW=8192 RES=0x00 SYN URGP=0 [19945.668326] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=188.92.0.197 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=113 ID=7865 PROTO=UDP SPT=6881 DPT=6881 LEN=28 [19967.200339] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=83.252.102.172 DST=192.168.1.6 LEN=52 TOS=0x00 PREC=0x00 TTL=105 ID=28408 DF PROTO=TCP SPT=63505 DPT=6881 WINDOW=8192 RES=0x00 SYN URGP=0 [19999.752732] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=79.166.171.200 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=110 ID=36405 PROTO=UDP SPT=6881 DPT=6881 LEN=28 [20007.928719] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=79.235.59.16 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=112 ID=46415 DF PROTO=TCP SPT=4537 DPT=6881 WINDOW=16384 RES=0x00 SYN URGP=0 [20026.181726] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=81.182.169.36 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=106 ID=25126 PROTO=UDP SPT=6881 DPT=6881 LEN=28 [20048.845358] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=87.66.118.104 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=111 ID=18068 DF PROTO=TCP SPT=49928 DPT=6881 WINDOW=8192 RES=0x00 SYN URGP=0 [20064.341857] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=77.2.63.153 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=107 ID=7242 PROTO=UDP SPT=6881 DPT=6881 LEN=28 [20090.093490] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=93.16.17.210 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=108 ID=894 PROTO=UDP SPT=6881 DPT=6881 LEN=28 [20104.443995] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=89.83.235.99 DST=192.168.1.6 LEN=52 TOS=0x00 PREC=0x00 TTL=114 ID=17295 DF PROTO=TCP SPT=58979 DPT=6881 WINDOW=8192 RES=0x00 SYN URGP=0 [20128.625374] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=81.62.91.79 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=107 ID=21793 DF PROTO=TCP SPT=51446 DPT=6881 WINDOW=8192 RES=0x00 SYN URGP=0 [20151.055506] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=84.135.217.213 DST=192.168.1.6 LEN=52 TOS=0x00 PREC=0x00 TTL=112 ID=32452 DF PROTO=TCP SPT=55136 DPT=6881 WINDOW=8192 RES=0x00 SYN URGP=0 [20164.618874] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=91.79.8.40 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x20 TTL=110 ID=47784 DF PROTO=TCP SPT=2422 DPT=6881 WINDOW=65535 RES=0x00 SYN URGP=0 [20184.337745] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=83.252.212.71 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=107 ID=14544 PROTO=UDP SPT=6881 DPT=6881 LEN=28 [20205.007512] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=91.62.158.247 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=110 ID=21562 DF PROTO=TCP SPT=3933 DPT=6881 WINDOW=65535 RES=0x00 SYN URGP=0 [20225.204018] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=84.146.24.238 DST=192.168.1.6 LEN=52 TOS=0x00 PREC=0x00 TTL=113 ID=15045 DF PROTO=TCP SPT=49630 DPT=6881 WINDOW=8192 RES=0x00 SYN URGP=0 [20244.842290] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=82.82.190.168 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=112 ID=23741 DF PROTO=TCP SPT=50766 DPT=6881 WINDOW=8192 RES=0x00 SYN URGP=0 [20266.701649] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=88.153.108.124 DST=192.168.1.6 LEN=48 TOS=0x02 PREC=0x00 TTL=111 ID=206 DF PROTO=TCP SPT=2451 DPT=6881 WINDOW=65535 RES=0x00 SYN URGP=0 [20286.305414] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=78.240.86.73 DST=192.168.1.6 LEN=52 TOS=0x00 PREC=0x00 TTL=107 ID=325 DF PROTO=TCP SPT=65184 DPT=6881 WINDOW=8192 RES=0x00 SYN URGP=0 [20294.293989] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=192.168.1.254 DST=192.168.1.6 LEN=56 TOS=0x00 PREC=0x00 TTL=255 ID=43133 PROTO=ICMP TYPE=3 CODE=0 [SRC=192.168.1.6 DST=91.189.88.33 LEN=52 TOS=0x00 PREC=0x00 TTL=63 ID=56899 DF PROTO=TCP INCOMPLETE [8 bytes] ] [20294.297015] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=192.168.1.254 DST=192.168.1.6 LEN=56 TOS=0x00 PREC=0x00 TTL=255 ID=43134 PROTO=ICMP TYPE=3 CODE=0 [SRC=192.168.1.6 DST=91.189.88.40 LEN=52 TOS=0x00 PREC=0x00 TTL=63 ID=12080 DF PROTO=TCP INCOMPLETE [8 bytes] ] [20294.297242] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=192.168.1.254 DST=192.168.1.6 LEN=56 TOS=0x00 PREC=0x00 TTL=255 ID=43135 PROTO=ICMP TYPE=3 CODE=0 [SRC=192.168.1.6 DST=91.189.88.33 LEN=52 TOS=0x00 PREC=0x00 TTL=63 ID=25195 DF PROTO=TCP INCOMPLETE [8 bytes] ] [20295.478338] wlan0: deauthenticating from 00:24:c8:4b:46:e0 by local choice (reason=3) [20295.552735] cfg80211: All devices are disconnected, going to restore regulatory settings [20295.552742] cfg80211: Restoring regulatory settings [20295.552748] cfg80211: Calling CRDA to update world regulatory domain [20295.680635] cfg80211: Updating information on frequency 2412 MHz for a 20 MHz width channel with regulatory rule: [20295.680641] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [20295.680644] cfg80211: Updating information on frequency 2417 MHz for a 20 MHz width channel with regulatory rule: [20295.680648] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [20295.680652] cfg80211: Updating information on frequency 2422 MHz for a 20 MHz width channel with regulatory rule: [20295.680655] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [20295.680658] cfg80211: Updating information on frequency 2427 MHz for a 20 MHz width channel with regulatory rule: [20295.680662] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [20295.680665] cfg80211: Updating information on frequency 2432 MHz for a 20 MHz width channel with regulatory rule: [20295.680669] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [20295.680672] cfg80211: Updating information on frequency 2437 MHz for a 20 MHz width channel with regulatory rule: [20295.680676] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [20295.680679] cfg80211: Updating information on frequency 2442 MHz for a 20 MHz width channel with regulatory rule: [20295.680683] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [20295.680687] cfg80211: Updating information on frequency 2447 MHz for a 20 MHz width channel with regulatory rule: [20295.680690] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [20295.680693] cfg80211: Updating information on frequency 2452 MHz for a 20 MHz width channel with regulatory rule: [20295.680697] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [20295.680700] cfg80211: Updating information on frequency 2457 MHz for a 20 MHz width channel with regulatory rule: [20295.680704] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [20295.680708] cfg80211: Updating information on frequency 2462 MHz for a 20 MHz width channel with regulatory rule: [20295.680711] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2000 mBm) [20295.680715] cfg80211: Updating information on frequency 2467 MHz for a 20 MHz width channel with regulatory rule: [20295.680718] cfg80211: 2457000 KHz - 2482000 KHz @ KHz), (300 mBi, 2000 mBm) [20295.680722] cfg80211: Updating information on frequency 2472 MHz for a 20 MHz width channel with regulatory rule: [20295.680725] cfg80211: 2457000 KHz - 2482000 KHz @ KHz), (300 mBi, 2000 mBm) [20295.680728] cfg80211: Updating information on frequency 2484 MHz for a 20 MHz width channel with regulatory rule: [20295.680732] cfg80211: 2474000 KHz - 2494000 KHz @ KHz), (300 mBi, 2000 mBm) [20295.680736] cfg80211: World regulatory domain updated: [20295.680738] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [20295.680742] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [20295.680745] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [20295.680749] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [20295.680752] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [20295.680756] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [20306.009341] wlan0: authenticate with 00:24:c8:4b:46:e0 (try 1) [20306.011225] wlan0: authenticated [20306.118095] wlan0: associate with 00:24:c8:4b:46:e0 (try 1) [20306.120963] wlan0: RX AssocResp from 00:24:c8:4b:46:e0 (capab=0x411 status=0 aid=2) [20306.120967] wlan0: associated [20307.364427] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=87.91.101.130 DST=192.168.1.6 LEN=64 TOS=0x00 PREC=0x00 TTL=49 ID=36839 DF PROTO=TCP SPT=62492 DPT=6881 WINDOW=65535 RES=0x00 SYN URGP=0 [20310.914290] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=192.168.1.254 DST=192.168.1.6 LEN=56 TOS=0x00 PREC=0x00 TTL=255 ID=43180 PROTO=ICMP TYPE=3 CODE=0 [SRC=192.168.1.6 DST=91.189.88.33 LEN=52 TOS=0x00 PREC=0x00 TTL=63 ID=56900 DF PROTO=TCP INCOMPLETE [8 bytes] ] [20310.936634] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=192.168.1.254 DST=192.168.1.6 LEN=56 TOS=0x00 PREC=0x00 TTL=255 ID=43181 PROTO=ICMP TYPE=3 CODE=0 [SRC=192.168.1.6 DST=91.189.88.40 LEN=52 TOS=0x00 PREC=0x00 TTL=63 ID=12081 DF PROTO=TCP INCOMPLETE [8 bytes] ] [20310.939017] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=192.168.1.254 DST=192.168.1.6 LEN=56 TOS=0x00 PREC=0x00 TTL=255 ID=43182 PROTO=ICMP TYPE=3 CODE=0 [SRC=192.168.1.6 DST=91.189.88.33 LEN=52 TOS=0x00 PREC=0x00 TTL=63 ID=25196 DF PROTO=TCP INCOMPLETE [8 bytes] ] [20325.941050] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=217.118.78.99 DST=192.168.1.6 LEN=48 TOS=0x00 PREC=0x00 TTL=113 ID=4407 PROTO=UDP SPT=2970 DPT=6881 LEN=28 [20328.801724] [UFW BLOCK] IN=wlan0 OUT= MAC=00:c0:ca:44:62:d1:00:24:c8:4b:46:e0:08:00 SRC=192.168.1.254 DST=192.168.1.6 LEN=56 TOS=0x00 PREC=0x00 TTL=255 ID=43196 PROTO=ICMP TYPE=3 CODE=0 [SRC=192.168.1.6 DST=91.189.88.33 LEN=52 TOS=0x00 PREC=0x00 TTL=63 ID=56901 DF PROTO=TCP INCOMPLETE [8 bytes] ] ... inxi -N Network: Card-1 Realtek RTL8101E/RTL8102E PCI Express Fast Ethernet controller driver r8169 Card-2 Realtek RTL-8139/8139C/8139C+ driver 8139too /usr/lib/linuxmint/mintWifi/mintWifi.py ------------------------- * I. scanning WIFI PCI devices... ------------------------- * II. querying ndiswrapper... ------------------------- * III. querying iwconfig... lo no wireless extensions. eth0 no wireless extensions. eth1 no wireless extensions. wlan0 IEEE 802.11bg ESSID:"Home" Mode:Managed Frequency:2.437 GHz Access Point: 00:24:C8:4B:46:E0 Bit Rate=54 Mb/s Tx-Power=20 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=68/70 Signal level=-42 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:1132 Missed beacon:0 ------------------------- * IV. querying ifconfig... eth0 Link encap:Ethernet HWaddr 00:1f:d0:c9:b8:8e UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Interrupt:43 Base address:0x4000 eth1 Link encap:Ethernet HWaddr 00:0e:2e:77:88:16 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Interrupt:19 Base address:0xd000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:10696 errors:0 dropped:0 overruns:0 frame:0 TX packets:10696 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:3823011 (3.8 MB) TX bytes:3823011 (3.8 MB) wlan0 Link encap:Ethernet HWaddr 00:c0:ca:44:62:d1 inet addr:192.168.1.6 Bcast:255.255.255.255 Mask:255.255.255.0 inet6 addr: fe80::2c0:caff:fe44:62d1/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:90424 errors:0 dropped:0 overruns:0 frame:0 TX packets:65201 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:98024465 (98.0 MB) TX bytes:10345450 (10.3 MB) ------------------------- * V. querying DHCP... lspci 00:00.0 Host bridge: Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller (rev 10) 00:01.0 PCI bridge: Intel Corporation 82G33/G31/P35/P31 Express PCI Express Root Port (rev 10) 00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 01) 00:1c.0 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 1 (rev 01) 00:1c.1 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 2 (rev 01) 00:1d.0 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 (rev 01) 00:1d.1 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 (rev 01) 00:1d.2 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 (rev 01) 00:1d.3 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 01) 00:1d.7 USB Controller: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller (rev 01) 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1) 00:1f.0 ISA bridge: Intel Corporation 82801GB/GR (ICH7 Family) LPC Interface Bridge (rev 01) 00:1f.2 IDE interface: Intel Corporation N10/ICH7 Family SATA IDE Controller (rev 01) 00:1f.3 SMBus: Intel Corporation N10/ICH 7 Family SMBus Controller (rev 01) 01:00.0 VGA compatible controller: nVidia Corporation G96 [GeForce 9400 GT] (rev a1) 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02) 04:01.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10) lsmod Module Size Used by ipt_REJECT 12512 1 ipt_LOG 12784 5 xt_limit 12541 7 xt_tcpudp 12531 8 ipt_addrtype 12535 4 xt_state 12514 7 ip6table_filter 12711 1 ip6_tables 22545 1 ip6table_filter nf_nat_irc 12542 0 nf_conntrack_irc 13138 1 nf_nat_irc nf_nat_ftp 12548 0 nf_nat 24827 2 nf_nat_irc,nf_nat_ftp nf_conntrack_ipv4 19024 9 nf_nat nf_defrag_ipv4 12649 1 nf_conntrack_ipv4 nf_conntrack_ftp 13106 1 nf_nat_ftp nf_conntrack 69744 7 xt_state,nf_nat_irc,nf_conntrack_irc,nf_nat_ftp,nf_nat,nf_conntrack_ipv4,nf_conntrack_ftp iptable_filter 12706 1 ip_tables 18125 1 iptable_filter x_tables 21907 10 ipt_REJECT,ipt_LOG,xt_limit,xt_tcpudp,ipt_addrtype,xt_state,ip6table_filter,ip6_tables,iptable_filter,ip_tables nls_utf8 12493 10 udf 83795 1 crc_itu_t 12627 1 udf usb_storage 43946 1 uas 17676 0 snd_seq_dummy 12686 0 cryptd 19801 0 aes_i586 16956 1 aes_generic 38023 1 aes_i586 binfmt_misc 13213 1 dm_crypt 22463 0 vesafb 13449 1 nvidia 9766978 44 arc4 12473 2 rtl8187 56206 0 mac80211 257001 1 rtl8187 cfg80211 156212 2 rtl8187,mac80211 ppdev 12849 0 snd_hda_codec_realtek 255882 1 parport_pc 32111 1 psmouse 73312 0 eeprom_93cx6 12653 1 rtl8187 snd_hda_intel 24113 5 snd_hda_codec 90901 2 snd_hda_codec_realtek,snd_hda_intel snd_hwdep 13274 1 snd_hda_codec snd_pcm 80042 3 snd_hda_intel,snd_hda_codec snd_seq_midi 13132 0 snd_rawmidi 25269 1 snd_seq_midi snd_seq_midi_event 14475 1 snd_seq_midi snd_seq 51291 3 snd_seq_dummy,snd_seq_midi,snd_seq_midi_event snd_timer 28659 2 snd_pcm,snd_seq snd_seq_device 14110 4 snd_seq_dummy,snd_seq_midi,snd_rawmidi,snd_seq joydev 17322 0 snd 55295 18 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device serio_raw 12990 0 soundcore 12600 1 snd snd_page_alloc 14073 2 snd_hda_intel,snd_pcm lp 13349 0 parport 36746 3 ppdev,parport_pc,lp usbhid 41704 0 hid 77084 1 usbhid dm_raid45 88410 0 xor 21860 1 dm_raid45 btrfs 527388 0 zlib_deflate 26594 1 btrfs libcrc32c 12543 1 btrfs 8139too 23208 0 8139cp 22497 0 r8169 42534 0 floppy 60032 0

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  • Installed Ubuntu 12.04.01 with Windows XP but lost access to Windows XP

    - by Bob D
    The First time I tried to install Ubuntu the installer installed it on my D drive. This resulted in only booting to Windows XP with no access to Ubuntu. I had to download a disk partitioning program to undo all of this. A tip from the Internet said to create a partition on the C drive for Ubuntu, so I did along with a Swap Partition. I did this manually because the installer on the CD would not do so and would not let me do so from within the installer program. With the fresh partitions created for Ubuntu I let the installer do its thing. The computer rebooted and came up in Ubuntu. I then installed WINE and all was well. Then I shut the computer down for the night. The next day I turned on the computer and it booted directly into Ubuntu. I can see the Windows partition and all the files but it will not allow me to switch to the Windows XP OS. Does not even give me a choice to do so. I have reinstalled Ubuntu several times and each time is the same, I cannot access Windows XP anymore. Right now I am in a fresh install with only whatever the installer installed. How do I fix this?! I have tried the hold the shift key to see if something called GRUB shows up, but no. I tried shifting the order of boot in GRUB but that did not work either. I tried using EasyBCD but that will not run. One symptom I do not understand, my monitor will post a graphic when the computer reboots that the cable is disconnected, this is normal. Then when the computer gets to the actual boot process it will display the splash screens etc and it did this for Windows XP as well. But now something new has popped up, while booting Ubuntu after where it probably should be showing me a menu to pick what OS I want to boot, the monitor posts "Input Unsupported" until Ubuntu loads. I have never seen it post this before, maybe a clue to someone.

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  • The best, in the West

    - by Fatherjack
    As many of you know, I run the SQL South West user group and we are currently in full flow preparing to stage the UK’s second SQL Saturday. The SQL Saturday spotlight is going to fall on Exeter in March 2013. We have full-day session on Friday 8th with some truly amazing speakers giving their insights and experience into some vital areas of working with SQL Server: Dave Ballantyne and Dave Morrison – TSQL and internals Christian Bolton and Gavin Payne – Mission critical data platforms on Windows Server 2012 Denny Cherry – SQL Server Security André Kamman – Powershell 3.0 for SQL Server Administrators and Developers Mladen Prajdic – From SQL Traces to Extended Events – The next big switch. A number of people have claimed that the choice is too good and they’d have trouble selecting just one session to attend. I can see how this is a problem but hope that they make their minds up quickly. The venue is a bespoke conference suite in the centre of Exeter but has limited capacity so we are working on a first-come first-served basis. All the session details and booking and travel information can be found on our user group website. The Saturday will be a day of free, 50 minute sessions on all aspects SQL Server from almost 30 different speakers. If you would like to submit a session then get a move on as submissions close on 8th January 2013 (That’s less than a month away). We are really interested in getting new speakers started so we have a lightning talk session where you can come along and give a small talk (anywhere from 5 to 15 minutes long) about anything connected with SQL Server as a way to introduce you to what it’s like to be a speaker at an event. Details on registering to attend and to submit a session (Lightning talks need to be submitted too please) can be found on our SQL Saturday pages. This is going to be the biggest and best bespoke SQL Server conference to ever take place this far South West in the UK and we aim to give everyone who comes to either day a real experience of the South West so we have a few surprises for you on the day.

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  • How to create item in SharePoint2010 document library using SharePoint Web service

    - by ybbest
    Today, I’d like to show you how to create item in SharePoint2010 document library using SharePoint Web service. Originally, I thought I could use the WebSvcLists(list.asmx) that provides methods for working with lists and list data. However, after a bit Googling , I realize that I need to use the WebSvcCopy (copy.asmx).Here are the code used private const string siteUrl = "http://ybbest"; private static void Main(string[] args) { using (CopyWSProxyWrapper copyWSProxyWrapper = new CopyWSProxyWrapper(siteUrl)) { copyWSProxyWrapper.UploadFile("TestDoc2.pdf", new[] {string.Format("{0}/Shared Documents/TestDoc2.pdf", siteUrl)}, Resource.TestDoc, GetFieldInfos().ToArray()); } } private static List<FieldInformation> GetFieldInfos() { var fieldInfos = new List<FieldInformation>(); //The InternalName , DisplayName and FieldType are both required to make it work fieldInfos.Add(new FieldInformation { InternalName = "Title", Value = "TestDoc2.pdf", DisplayName = "Title", Type = FieldType.Text }); return fieldInfos; } Here is the code for the proxy wrapper. public class CopyWSProxyWrapper : IDisposable { private readonly string siteUrl; public CopyWSProxyWrapper(string siteUrl) { this.siteUrl = siteUrl; } private readonly CopySoapClient proxy = new CopySoapClient(); public void UploadFile(string testdoc2Pdf, string[] destinationUrls, byte[] testDoc, FieldInformation[] fieldInformations) { using (CopySoapClient proxy = new CopySoapClient()) { proxy.Endpoint.Address = new EndpointAddress(String.Format("{0}/_vti_bin/copy.asmx", siteUrl)); proxy.ClientCredentials.Windows.ClientCredential = CredentialCache.DefaultNetworkCredentials; proxy.ClientCredentials.Windows.AllowedImpersonationLevel = TokenImpersonationLevel.Impersonation; CopyResult[] copyResults = null; try { proxy.CopyIntoItems(testdoc2Pdf, destinationUrls, fieldInformations, testDoc, out copyResults); } catch (Exception e) { System.Console.WriteLine(e); } if (copyResults != null) System.Console.WriteLine(copyResults[0].ErrorMessage); System.Console.ReadLine(); } } public void Dispose() { proxy.Close(); } } You can download the source code here . ******Update********** It seems to be a bug that , you can not set the contentType when create a document item using Copy.asmx. In sp2007 the field type was Choice, however, in sp2010 it is actually Computed. I have tried using the Computed field type with no luck. I have also tried sending the ContentTypeId and this does not work.You might have to write your own web services to handle this.You can check my previous blog on how to get started with you own custom WCF in SP2010 here. References: SharePoint 2010 Web Services SharePoint2007 Web Services SharePoint MSDN Forum

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  • How to find and fix performance problems in ORM powered applications

    - by FransBouma
    Once in a while we get requests about how to fix performance problems with our framework. As it comes down to following the same steps and looking into the same things every single time, I decided to write a blogpost about it instead, so more people can learn from this and solve performance problems in their O/R mapper powered applications. In some parts it's focused on LLBLGen Pro but it's also usable for other O/R mapping frameworks, as the vast majority of performance problems in O/R mapper powered applications are not specific for a certain O/R mapper framework. Too often, the developer looks at the wrong part of the application, trying to fix what isn't a problem in that part, and getting frustrated that 'things are so slow with <insert your favorite framework X here>'. I'm in the O/R mapper business for a long time now (almost 10 years, full time) and as it's a small world, we O/R mapper developers know almost all tricks to pull off by now: we all know what to do to make task ABC faster and what compromises (because there are almost always compromises) to deal with if we decide to make ABC faster that way. Some O/R mapper frameworks are faster in X, others in Y, but you can be sure the difference is mainly a result of a compromise some developers are willing to deal with and others aren't. That's why the O/R mapper frameworks on the market today are different in many ways, even though they all fetch and save entities from and to a database. I'm not suggesting there's no room for improvement in today's O/R mapper frameworks, there always is, but it's not a matter of 'the slowness of the application is caused by the O/R mapper' anymore. Perhaps query generation can be optimized a bit here, row materialization can be optimized a bit there, but it's mainly coming down to milliseconds. Still worth it if you're a framework developer, but it's not much compared to the time spend inside databases and in user code: if a complete fetch takes 40ms or 50ms (from call to entity object collection), it won't make a difference for your application as that 10ms difference won't be noticed. That's why it's very important to find the real locations of the problems so developers can fix them properly and don't get frustrated because their quest to get a fast, performing application failed. Performance tuning basics and rules Finding and fixing performance problems in any application is a strict procedure with four prescribed steps: isolate, analyze, interpret and fix, in that order. It's key that you don't skip a step nor make assumptions: these steps help you find the reason of a problem which seems to be there, and how to fix it or leave it as-is. Skipping a step, or when you assume things will be bad/slow without doing analysis will lead to the path of premature optimization and won't actually solve your problems, only create new ones. The most important rule of finding and fixing performance problems in software is that you have to understand what 'performance problem' actually means. Most developers will say "when a piece of software / code is slow, you have a performance problem". But is that actually the case? If I write a Linq query which will aggregate, group and sort 5 million rows from several tables to produce a resultset of 10 rows, it might take more than a couple of milliseconds before that resultset is ready to be consumed by other logic. If I solely look at the Linq query, the code consuming the resultset of the 10 rows and then look at the time it takes to complete the whole procedure, it will appear to me to be slow: all that time taken to produce and consume 10 rows? But if you look closer, if you analyze and interpret the situation, you'll see it does a tremendous amount of work, and in that light it might even be extremely fast. With every performance problem you encounter, always do realize that what you're trying to solve is perhaps not a technical problem at all, but a perception problem. The second most important rule you have to understand is based on the old saying "Penny wise, Pound Foolish": the part which takes e.g. 5% of the total time T for a given task isn't worth optimizing if you have another part which takes a much larger part of the total time T for that same given task. Optimizing parts which are relatively insignificant for the total time taken is not going to bring you better results overall, even if you totally optimize that part away. This is the core reason why analysis of the complete set of application parts which participate in a given task is key to being successful in solving performance problems: No analysis -> no problem -> no solution. One warning up front: hunting for performance will always include making compromises. Fast software can be made maintainable, but if you want to squeeze as much performance out of your software, you will inevitably be faced with the dilemma of compromising one or more from the group {readability, maintainability, features} for the extra performance you think you'll gain. It's then up to you to decide whether it's worth it. In almost all cases it's not. The reason for this is simple: the vast majority of performance problems can be solved by implementing the proper algorithms, the ones with proven Big O-characteristics so you know the performance you'll get plus you know the algorithm will work. The time taken by the algorithm implementing code is inevitable: you already implemented the best algorithm. You might find some optimizations on the technical level but in general these are minor. Let's look at the four steps to see how they guide us through the quest to find and fix performance problems. Isolate The first thing you need to do is to isolate the areas in your application which are assumed to be slow. For example, if your application is a web application and a given page is taking several seconds or even minutes to load, it's a good candidate to check out. It's important to start with the isolate step because it allows you to focus on a single code path per area with a clear begin and end and ignore the rest. The rest of the steps are taken per identified problematic area. Keep in mind that isolation focuses on tasks in an application, not code snippets. A task is something that's started in your application by either another task or the user, or another program, and has a beginning and an end. You can see a task as a piece of functionality offered by your application.  Analyze Once you've determined the problem areas, you have to perform analysis on the code paths of each area, to see where the performance problems occur and which areas are not the problem. This is a multi-layered effort: an application which uses an O/R mapper typically consists of multiple parts: there's likely some kind of interface (web, webservice, windows etc.), a part which controls the interface and business logic, the O/R mapper part and the RDBMS, all connected with either a network or inter-process connections provided by the OS or other means. Each of these parts, including the connectivity plumbing, eat up a part of the total time it takes to complete a task, e.g. load a webpage with all orders of a given customer X. To understand which parts participate in the task / area we're investigating and how much they contribute to the total time taken to complete the task, analysis of each participating task is essential. Start with the code you wrote which starts the task, analyze the code and track the path it follows through your application. What does the code do along the way, verify whether it's correct or not. Analyze whether you have implemented the right algorithms in your code for this particular area. Remember we're looking at one area at a time, which means we're ignoring all other code paths, just the code path of the current problematic area, from begin to end and back. Don't dig in and start optimizing at the code level just yet. We're just analyzing. If your analysis reveals big architectural stupidity, it's perhaps a good idea to rethink the architecture at this point. For the rest, we're analyzing which means we collect data about what could be wrong, for each participating part of the complete application. Reviewing the code you wrote is a good tool to get deeper understanding of what is going on for a given task but ultimately it lacks precision and overview what really happens: humans aren't good code interpreters, computers are. We therefore need to utilize tools to get deeper understanding about which parts contribute how much time to the total task, triggered by which other parts and for example how many times are they called. There are two different kind of tools which are necessary: .NET profilers and O/R mapper / RDBMS profilers. .NET profiling .NET profilers (e.g. dotTrace by JetBrains or Ants by Red Gate software) show exactly which pieces of code are called, how many times they're called, and the time it took to run that piece of code, at the method level and sometimes even at the line level. The .NET profilers are essential tools for understanding whether the time taken to complete a given task / area in your application is consumed by .NET code, where exactly in your code, the path to that code, how many times that code was called by other code and thus reveals where hotspots are located: the areas where a solution can be found. Importantly, they also reveal which areas can be left alone: remember our penny wise pound foolish saying: if a profiler reveals that a group of methods are fast, or don't contribute much to the total time taken for a given task, ignore them. Even if the code in them is perhaps complex and looks like a candidate for optimization: you can work all day on that, it won't matter.  As we're focusing on a single area of the application, it's best to start profiling right before you actually activate the task/area. Most .NET profilers support this by starting the application without starting the profiling procedure just yet. You navigate to the particular part which is slow, start profiling in the profiler, in your application you perform the actions which are considered slow, and afterwards you get a snapshot in the profiler. The snapshot contains the data collected by the profiler during the slow action, so most data is produced by code in the area to investigate. This is important, because it allows you to stay focused on a single area. O/R mapper and RDBMS profiling .NET profilers give you a good insight in the .NET side of things, but not in the RDBMS side of the application. As this article is about O/R mapper powered applications, we're also looking at databases, and the software making it possible to consume the database in your application: the O/R mapper. To understand which parts of the O/R mapper and database participate how much to the total time taken for task T, we need different tools. There are two kind of tools focusing on O/R mappers and database performance profiling: O/R mapper profilers and RDBMS profilers. For O/R mapper profilers, you can look at LLBLGen Prof by hibernating rhinos or the Linq to Sql/LLBLGen Pro profiler by Huagati. Hibernating rhinos also have profilers for other O/R mappers like NHibernate (NHProf) and Entity Framework (EFProf) and work the same as LLBLGen Prof. For RDBMS profilers, you have to look whether the RDBMS vendor has a profiler. For example for SQL Server, the profiler is shipped with SQL Server, for Oracle it's build into the RDBMS, however there are also 3rd party tools. Which tool you're using isn't really important, what's important is that you get insight in which queries are executed during the task / area we're currently focused on and how long they took. Here, the O/R mapper profilers have an advantage as they collect the time it took to execute the query from the application's perspective so they also collect the time it took to transport data across the network. This is important because a query which returns a massive resultset or a resultset with large blob/clob/ntext/image fields takes more time to get transported across the network than a small resultset and a database profiler doesn't take this into account most of the time. Another tool to use in this case, which is more low level and not all O/R mappers support it (though LLBLGen Pro and NHibernate as well do) is tracing: most O/R mappers offer some form of tracing or logging system which you can use to collect the SQL generated and executed and often also other activity behind the scenes. While tracing can produce a tremendous amount of data in some cases, it also gives insight in what's going on. Interpret After we've completed the analysis step it's time to look at the data we've collected. We've done code reviews to see whether we've done anything stupid and which parts actually take place and if the proper algorithms have been implemented. We've done .NET profiling to see which parts are choke points and how much time they contribute to the total time taken to complete the task we're investigating. We've performed O/R mapper profiling and RDBMS profiling to see which queries were executed during the task, how many queries were generated and executed and how long they took to complete, including network transportation. All this data reveals two things: which parts are big contributors to the total time taken and which parts are irrelevant. Both aspects are very important. The parts which are irrelevant (i.e. don't contribute significantly to the total time taken) can be ignored from now on, we won't look at them. The parts which contribute a lot to the total time taken are important to look at. We now have to first look at the .NET profiler results, to see whether the time taken is consumed in our own code, in .NET framework code, in the O/R mapper itself or somewhere else. For example if most of the time is consumed by DbCommand.ExecuteReader, the time it took to complete the task is depending on the time the data is fetched from the database. If there was just 1 query executed, according to tracing or O/R mapper profilers / RDBMS profilers, check whether that query is optimal, uses indexes or has to deal with a lot of data. Interpret means that you follow the path from begin to end through the data collected and determine where, along the path, the most time is contributed. It also means that you have to check whether this was expected or is totally unexpected. My previous example of the 10 row resultset of a query which groups millions of rows will likely reveal that a long time is spend inside the database and almost no time is spend in the .NET code, meaning the RDBMS part contributes the most to the total time taken, the rest is compared to that time, irrelevant. Considering the vastness of the source data set, it's expected this will take some time. However, does it need tweaking? Perhaps all possible tweaks are already in place. In the interpret step you then have to decide that further action in this area is necessary or not, based on what the analysis results show: if the analysis results were unexpected and in the area where the most time is contributed to the total time taken is room for improvement, action should be taken. If not, you can only accept the situation and move on. In all cases, document your decision together with the analysis you've done. If you decide that the perceived performance problem is actually expected due to the nature of the task performed, it's essential that in the future when someone else looks at the application and starts asking questions you can answer them properly and new analysis is only necessary if situations changed. Fix After interpreting the analysis results you've concluded that some areas need adjustment. This is the fix step: you're actively correcting the performance problem with proper action targeted at the real cause. In many cases related to O/R mapper powered applications it means you'll use different features of the O/R mapper to achieve the same goal, or apply optimizations at the RDBMS level. It could also mean you apply caching inside your application (compromise memory consumption over performance) to avoid unnecessary re-querying data and re-consuming the results. After applying a change, it's key you re-do the analysis and interpretation steps: compare the results and expectations with what you had before, to see whether your actions had any effect or whether it moved the problem to a different part of the application. Don't fall into the trap to do partly analysis: do the full analysis again: .NET profiling and O/R mapper / RDBMS profiling. It might very well be that the changes you've made make one part faster but another part significantly slower, in such a way that the overall problem hasn't changed at all. Performance tuning is dealing with compromises and making choices: to use one feature over the other, to accept a higher memory footprint, to go away from the strict-OO path and execute queries directly onto the RDBMS, these are choices and compromises which will cross your path if you want to fix performance problems with respect to O/R mappers or data-access and databases in general. In most cases it's not a big issue: alternatives are often good choices too and the compromises aren't that hard to deal with. What is important is that you document why you made a choice, a compromise: which analysis data, which interpretation led you to the choice made. This is key for good maintainability in the years to come. Most common performance problems with O/R mappers Below is an incomplete list of common performance problems related to data-access / O/R mappers / RDBMS code. It will help you with fixing the hotspots you found in the interpretation step. SELECT N+1: (Lazy-loading specific). Lazy loading triggered performance bottlenecks. Consider a list of Orders bound to a grid. You have a Field mapped onto a related field in Order, Customer.CompanyName. Showing this column in the grid will make the grid fetch (indirectly) for each row the Customer row. This means you'll get for the single list not 1 query (for the orders) but 1+(the number of orders shown) queries. To solve this: use eager loading using a prefetch path to fetch the customers with the orders. SELECT N+1 is easy to spot with an O/R mapper profiler or RDBMS profiler: if you see a lot of identical queries executed at once, you have this problem. Prefetch paths using many path nodes or sorting, or limiting. Eager loading problem. Prefetch paths can help with performance, but as 1 query is fetched per node, it can be the number of data fetched in a child node is bigger than you think. Also consider that data in every node is merged on the client within the parent. This is fast, but it also can take some time if you fetch massive amounts of entities. If you keep fetches small, you can use tuning parameters like the ParameterizedPrefetchPathThreshold setting to get more optimal queries. Deep inheritance hierarchies of type Target Per Entity/Type. If you use inheritance of type Target per Entity / Type (each type in the inheritance hierarchy is mapped onto its own table/view), fetches will join subtype- and supertype tables in many cases, which can lead to a lot of performance problems if the hierarchy has many types. With this problem, keep inheritance to a minimum if possible, or switch to a hierarchy of type Target Per Hierarchy, which means all entities in the inheritance hierarchy are mapped onto the same table/view. Of course this has its own set of drawbacks, but it's a compromise you might want to take. Fetching massive amounts of data by fetching large lists of entities. LLBLGen Pro supports paging (and limiting the # of rows returned), which is often key to process through large sets of data. Use paging on the RDBMS if possible (so a query is executed which returns only the rows in the page requested). When using paging in a web application, be sure that you switch server-side paging on on the datasourcecontrol used. In this case, paging on the grid alone is not enough: this can lead to fetching a lot of data which is then loaded into the grid and paged there. Keep note that analyzing queries for paging could lead to the false assumption that paging doesn't occur, e.g. when the query contains a field of type ntext/image/clob/blob and DISTINCT can't be applied while it should have (e.g. due to a join): the datareader will do DISTINCT filtering on the client. this is a little slower but it does perform paging functionality on the data-reader so it won't fetch all rows even if the query suggests it does. Fetch massive amounts of data because blob/clob/ntext/image fields aren't excluded. LLBLGen Pro supports field exclusion for queries. You can exclude fields (also in prefetch paths) per query to avoid fetching all fields of an entity, e.g. when you don't need them for the logic consuming the resultset. Excluding fields can greatly reduce the amount of time spend on data-transport across the network. Use this optimization if you see that there's a big difference between query execution time on the RDBMS and the time reported by the .NET profiler for the ExecuteReader method call. Doing client-side aggregates/scalar calculations by consuming a lot of data. If possible, try to formulate a scalar query or group by query using the projection system or GetScalar functionality of LLBLGen Pro to do data consumption on the RDBMS server. It's far more efficient to process data on the RDBMS server than to first load it all in memory, then traverse the data in-memory to calculate a value. Using .ToList() constructs inside linq queries. It might be you use .ToList() somewhere in a Linq query which makes the query be run partially in-memory. Example: var q = from c in metaData.Customers.ToList() where c.Country=="Norway" select c; This will actually fetch all customers in-memory and do an in-memory filtering, as the linq query is defined on an IEnumerable<T>, and not on the IQueryable<T>. Linq is nice, but it can often be a bit unclear where some parts of a Linq query might run. Fetching all entities to delete into memory first. To delete a set of entities it's rather inefficient to first fetch them all into memory and then delete them one by one. It's more efficient to execute a DELETE FROM ... WHERE query on the database directly to delete the entities in one go. LLBLGen Pro supports this feature, and so do some other O/R mappers. It's not always possible to do this operation in the context of an O/R mapper however: if an O/R mapper relies on a cache, these kind of operations are likely not supported because they make it impossible to track whether an entity is actually removed from the DB and thus can be removed from the cache. Fetching all entities to update with an expression into memory first. Similar to the previous point: it is more efficient to update a set of entities directly with a single UPDATE query using an expression instead of fetching the entities into memory first and then updating the entities in a loop, and afterwards saving them. It might however be a compromise you don't want to take as it is working around the idea of having an object graph in memory which is manipulated and instead makes the code fully aware there's a RDBMS somewhere. Conclusion Performance tuning is almost always about compromises and making choices. It's also about knowing where to look and how the systems in play behave and should behave. The four steps I provided should help you stay focused on the real problem and lead you towards the solution. Knowing how to optimally use the systems participating in your own code (.NET framework, O/R mapper, RDBMS, network/services) is key for success as well as knowing what's going on inside the application you built. I hope you'll find this guide useful in tracking down performance problems and dealing with them in a useful way.  

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  • Internet Protocol Suite: Transition Control Protocol (TCP) vs. User Datagram Protocol (UDP)

    How do we communicate over the Internet?  How is data transferred from one machine to another? These types of act ivies can only be done by using one of two Internet protocols currently. The collection of Internet Protocol consists of the Transition Control Protocol (TCP) and the User Datagram Protocol (UDP).  Both protocols are used to send data between two network end points, however they both have very distinct ways of transporting data from one endpoint to another. If transmission speed and reliability is the primary concern when trying to transfer data between two network endpoints then TCP is the proper choice. When a device attempts to send data to another endpoint using TCP it creates a direct connection between both devices until the transmission has completed. The direct connection between both devices ensures the reliability of the transmission due to the fact that no intermediate devices are needed to transfer the data. Due to the fact that both devices have to continuously poll the connection until transmission has completed increases the resources needed to perform the transmission. An example of this type of direct communication can be seen when a teacher tells a students to do their homework. The teacher is talking directly to the students in order to communicate that the homework needs to be done.  Students can then ask questions about the assignment to ensure that they have received the proper instructions for the assignment. UDP is a less resource intensive approach to sending data between to network endpoints. When a device uses UDP to send data across a network, the data is broken up and repackaged with the destination address. The sending device then releases the data packages to the network, but cannot ensure when or if the receiving device will actually get the data.  The sending device depends on other devices on the network to forward the data packages to the destination devices in order to complete the transmission. As you can tell this type of transmission is less resource intensive because not connection polling is needed,  but should not be used for transmitting data with speed or reliability requirements. This is due to the fact that the sending device can not ensure that the transmission is received.  An example of this type of communication can be seen when a teacher tells a student that they would like to speak with their parents. The teacher is relying on the student to complete the transmission to the parents, and the teacher has no guarantee that the student will actually inform the parents about the request. Both TCP and UPD are invaluable when attempting to send data across a network, but depending on the situation one protocol may be better than the other. Before deciding on which protocol to use an evaluation for transmission speed, reliability, latency, and overhead must be completed in order to define the best protocol for the situation.  

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  • Using Pandora in Boxee

    - by Mysticgeek
    Boxee is a very cool multimedia app that lets you access and stream your digital media in many different ways. There’s also a lot of extra apps included with it, and today we take a look at the Pandora application in Boxee. Pandora has been a favorite free music streaming service that’s been around for some time now. Though there are new services like Grooveshark and Spotify that are competing, Pandora is still a reliable choice. It’s now included in Boxee, and here we take a look at using it. Create a Pandora Account If you don’t already have a Pandora account, you can easily create one at their website (link below). Pandora in Boxee To start using Pandora from Boxee, launch Boxee and from the main menu select Apps. Now from the My Apps section select Pandora. When the Pandora app menu comes up, select Start. Now you need to log into your Pandora account. After signing in you can starting listening to your stations, viewing artist info, and cover art. All while enjoying some cool visuals in the background. From the controls at the top you can control playback, skip songs, control volume, get information on why a song was picked, and give a song a thumbs up or down. Of course you can also pull up your stations and switch between them and add more. The same features you’ve come to expect from Pandora are available. One thing we noticed missing is not being able to click on the band or artist to get additional information about them –which you can do on the Pandora site and desktop app. But that isn’t a deal breaker by any means, and we’re hoping the feature will be added in the future. Then while you’re checking out other apps, shows, and setting within Boxee, the cool visuals continue and the songs from you stations keep playing. Conclusion Pandora is a great streaming music service and a welcome edition to Boxee. If you’re a fan of Pandora now you can listen to it on your home theater system. If you’re new to Boxee, make sure to check out our article on getting started with Boxee. Create a Pandora Account Download Boxee Similar Articles Productive Geek Tips Integrate Boxee with Media Center in Windows 7Getting Started with BoxeePandora One is a Worthwhile Upgrade for Your Current Pandora AccountCreate Music Video Playlists with TubeRadio.fmSpotify is an Awesome Music Streaming Service TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional Draw Online using Harmony How to Browse Privately in Firefox Kill Processes Quickly with Process Assassin Need to Come Up with a Good Name? Try Wordoid StockFox puts a Lightweight Stock Ticker in your Statusbar Explore Google Public Data Visually

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  • Access Windows Home Server from an Ubuntu Computer on your Network

    - by Mysticgeek
    If you’re a Windows Home Server user, there may be times when you need to access it from an Ubuntu machine on your network. Today we take a look at the process of accessing files on your home server from Ubuntu. Note: In this example we’re using Windows Home Server with PowerPack 3, and Ubuntu 10.04 running on a home network. Access WHS from Ubuntu To access files on your home server from Ubuntu, click on Places then select Network. You should now see your home server listed in the Network folder as well as other Windows machines…double-click the server to access it. If you don’t see your server listed, you might need to go into Windows Network \ Workgroup and find it there. You’ll be prompted to enter in the correct credentials for WHS just as you would when accessing it from a Windows machine. It’s your choice if you want to have the password remembered or not…make your selection and click Connect. Now you will see the available folders on your home server. In this example we signed in with Administrator credentials, so we have access to everything. Double-click on the folder share you want to access content from…here we see MS Office documents on the server. Or, here we take a look at a music folder with various MP3 files which you can make Ubuntu play. You can access the files directly from the server, provided there is a Linux app that can handle the file type. In this example we opened a Word document in OpenOffice. Here we’re playing an MKV movie file from the server in Totem Movie Player.   You can easily search for files on the server as well… If you want to store your Ubuntu files on WHS it’s just a matter of dragging them to the correct WHS folder you want them in. If you’re using an Ubuntu computer on your home network and need to access files from Windows Home Server, luckily it’s a straight-forward process. You’ll often have to find the correct software to use Windows files, but even that’s getting much easier with version 10.04. Similar Articles Productive Geek Tips Share Ubuntu Home Directories using SambaCreate a Samba User on UbuntuGMedia Blog: Setting Up a Windows Home ServerRestore Files from Backups on Windows Home ServerInstall Samba Server on Ubuntu TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips HippoRemote Pro 2.2 Xobni Plus for Outlook All My Movies 5.9 CloudBerry Online Backup 1.5 for Windows Home Server Speed Up Windows With ReadyBoost Awesome World Cup Soccer Calendar Nice Websites To Watch TV Shows Online 24 Million Sites Windows Media Player Glass Icons (icons we like) How to Forecast Weather, without Gadgets

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  • Perfect Your MySQL Database Administrators Skills

    - by Antoinette O'Sullivan
    With its proven ease-of-use, performance, and scalability, MySQL has become the leading database choice for web-based applications, used by high profile web properties including Google, Yahoo!, Facebook, YouTube, Wikipedia and thousands of mid-sized companies. Many organizations deploy both Oracle Database and MySQL side by side to serve different needs, and as a database professional you can find training courses on both topics at Oracle University! Check out the upcoming Oracle Database training courses and MySQL training courses. Even if you're only managing Oracle Databases at this point of time, getting familiar with MySQL Database will broaden your career path with growing job demand. Hone your skills as a MySQL Database Administrator by taking the MySQL for Database Administrators course which teaches you how to secure privileges, set resource limitations, access controls and describe backup and recovery basics. You also learn how to create and use stored procedures, triggers and views. You can take this 5 day course through three delivery methods: Training-on-Demand: Take this course at your own pace and at a time that suits you through this high-quality streaming video delivery. You also get to schedule time on a classroom environment to perform the hands-on exercises. Live-Virtual: Attend a live instructor led event from your own desk. 100s of events already of the calendar in many timezones. In-Class: Travel to an education center to attend this class. A sample of events is shown below:  Location  Date  Delivery Language  Budapest, Hungary  26 November 2012  Hungarian  Prague, Czech Republic  19 November 2012  Czech  Warsaw, Poland  10 December 2012  Polish  Belfast, Northern Ireland  26 November, 2012  English  London, England  26 November, 2012  English  Rome, Italy  19 November, 2012  Italian  Lisbon, Portugal  12 November, 2012  European Portugese  Porto, Portugal  21 January, 2013  European Portugese  Amsterdam, Netherlands  19 November, 2012  Dutch  Nieuwegein, Netherlands  8 April, 2013  Dutch  Barcelona, Spain  4 February, 2013  Spanish  Madrid, Spain  19 November, 2012  Spanish  Mechelen, Belgium  25 February, 2013  English  Windhof, Luxembourg  19 November, 2012  English  Johannesburg, South Africa  9 December, 2012  English  Cairo, Egypt  20 October, 2012  English  Nairobi, Kenya  26 November, 2012  English  Petaling Jaya, Malaysia  29 October, 2012  English  Auckland, New Zealand  5 November, 2012  English  Wellington, New Zealand  23 October, 2012  English  Brisbane, Australia  19 November, 2012  English  Edmonton, Canada  7 January, 2013  English  Vancouver, Canada  7 January, 2013  English  Ottawa, Canada  22 October, 2012  English  Toronto, Canada  22 October, 2012  English  Montreal, Canada  22 October, 2012  English  Mexico City, Mexico  10 December, 2012  Spanish  Sao Paulo, Brazil  10 December, 2012  Brazilian Portugese For more information on this course or any aspect of the MySQL curriculum, visit http://oracle.com/education/mysql.

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  • SQL SERVER – SQL Server High Availability Options – Notes from the Field #032

    - by Pinal Dave
    [Notes from Pinal]: When it is about High Availability or Disaster Recovery, I often see people getting confused. There are so many options available that when the user has to select what is the most optimal solution for their organization they are often confused. Most of the people even know the salient features of various options, but when they have to figure out one single option to use they are often not sure which option to use. I like to give ask my dear friend time all these kinds of complicated questions. He has a skill to make a complex subject very simple and easy to understand. Linchpin People are database coaches and wellness experts for a data driven world. In this 26th episode of the Notes from the Fields series database expert Tim Radney (partner at Linchpin People) explains in a very simple words the best High Availability Option for your SQL Server.  Working with SQL Server a common challenge we are faced with is providing the maximum uptime possible.  To meet these demands we have to design a solution to provide High Availability (HA). Microsoft SQL Server depending on your edition provides you with several options.  This could be database mirroring, log shipping, failover clusters, availability groups or replication. Each possible solution comes with pro’s and con’s.  Not anyone one solution fits all scenarios so understanding which solution meets which need is important.  As with anything IT related, you need to fully understand your requirements before trying to solution the problem.  When it comes to building an HA solution, you need to understand the risk your organization needs to mitigate the most. I have found that most are concerned about hardware failure and OS failures. Other common concerns are data corruption or storage issues.  For data corruption or storage issues you can mitigate those concerns by having a second copy of the databases. That can be accomplished with database mirroring, log shipping, replication or availability groups with a secondary replica.  Failover clustering and virtualization with shared storage do not provide redundancy of the data. I recently created a chart outlining some pros and cons of each of the technologies that I posted on my blog. I like to use this chart to help illustrate how each technology provides a certain number of benefits.  Each of these solutions carries with it some level of cost and complexity.  As a database professional we should all be familiar with these technologies so we can make the best possible choice for our organization. If you want me to take a look at your server and its settings, or if your server is facing any issue we can Fix Your SQL Server. Note: Tim has also written an excellent book on SQL Backup and Recovery, a must have for everyone. Reference: Pinal Dave (http://blog.sqlauthority.com)Filed under: Notes from the Field, PostADay, SQL, SQL Authority, SQL Performance, SQL Query, SQL Server, SQL Tips and Tricks, T SQL Tagged: Shrinking Database

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  • Java Spotlight Episode 138: Paul Perrone on Life Saving Embedded Java

    - by Roger Brinkley
    Interview with Paul Perrone, founder and CEO of Perrone Robotics, on using Java Embedded to test autonomous vehicle operations for the Insurance Institute for Highway Safety that will save lives. Right-click or Control-click to download this MP3 file. You can also subscribe to the Java Spotlight Podcast Feed to get the latest podcast automatically. If you use iTunes you can open iTunes and subscribe with this link: Java Spotlight Podcast in iTunes. Show Notes News JDK 8 is Feature Complete Java SE 7 Update 25 Released What should the JCP be doing? 2013 Duke's Choice Award Nominations Another Quick update to Code Signing Article on OTN Events June 24, Austin JUG, Austin, TX June 25, Virtual Developer Day - Java, EMEA, 10AM CEST Jul 16-19, Uberconf, Denver, USA Jul 22-24, JavaOne Shanghai, China Jul 29-31, JVM Summit Language, Santa Clara Sep 11-12, JavaZone, Oslo, Norway Sep 19-20, Strange Loop, St. Louis Sep 22-26 JavaOne San Francisco 2013, USA Feature Interview Paul J. Perrone is founder/CEO of Perrone Robotics. Paul architected the Java-based general-purpose robotics and automation software platform known as “MAX”. Paul has overseen MAX’s application to rapidly field self-driving robotic cars, unmanned air vehicles, factory and road-side automation applications, and a wide range of advanced robots and automaton applications. He fielded a self-driving autonomous robotic dune buggy in the historic 2005 Grand Challenge race across the Mojave desert and a self-driving autonomous car in the 2007 Urban Challenge through a city landscape. His work has been featured in numerous televised and print media including the Discovery Channel, a theatrical documentary, scientific journals, trade magazines, and international press. Since 2008, Paul has also been working as the chief software engineer, CTO, and roboticist automating rock star Neil Young’s LincVolt, a 1959 Lincoln Continental retro-fitted as a fully autonomous extended range electric vehicle. Paul has been an engineer, author of books and articles on Java, frequent speaker on Java, and entrepreneur in the robotics and software space for over 20 years. He is a member of the Java Champions program, recipient of three Duke Awards including a Gold Duke and Lifetime Achievement Award, has showcased Java-based robots at five JavaOne keynotes, and is a frequent JavaOne speaker and show floor participant. He holds a B.S.E.E. from Rutgers University and an M.S.E.E. from the University of Virginia. What’s Cool Shenandoah: A pauseless GC for OpenJDK

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  • HTML5/JS - Choppy Game Loop

    - by Rikonator
    I have been experimenting with HTML5/JS, trying to create a simple game when I hit a wall. My choice of game loop is too choppy to be actually of any use in a game. I'm trying for a fixed time step loop, rendering only when required. I simply use a requestAnimationFrame to run Game.update which finds the elapsed time since the last update, and calls State.update to update and render the current state. State.prototype.update = function(ms) { this.ticks += ms; var updates = 0; while(this.ticks >= State.DELTA_TIME && updates < State.MAX_UPDATES) { this.updateState(); this.updateFrameTicks += State.DELTA_TIME; this.updateFrames++; if(this.updateFrameTicks >= 1000) { this.ups = this.updateFrames; this.updateFrames = 0; this.updateFrameTicks -= 1000; } this.ticks -= State.DELTA_TIME; updates++; } if(updates > 0) { this.renderFrameTicks += updates*State.DELTA_TIME; this.renderFrames++; if(this.renderFrameTicks >= 1000) { this.rps = this.renderFrames; this.renderFrames = 0; this.renderFrameTicks -= 1000; } this.renderState(updates*State.DELTA_TIME); } }; But this strategy does not work very well. This is the result: http://jsbin.com/ukosuc/1 (Edit). As it is apparent, the 'game' has fits of lag, and when you tab out for a long period and come back, the 'game' behaves unexpectedly - updates faster than intended. This is either a problem due to something about game loops that I don't quite understand yet, or a problem due to implementation which I can't pinpoint. I haven't been able to solve this problem despite attempting several variations using setTimeout and requestAnimationFrame. (One such example is http://jsbin.com/eyarod/1/edit). Some help and insight would really be appreciated!

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  • Technology Selection for a dynamic product

    - by Kuntal Shah
    We are building a product for Procurement Domain in JAVA. Following are the main technical requirements. Platform Independent Database Independent Browser Independent In functional requirements the product is very dynamic in nature. The main reason being the procurement process around the world is different from client to client. Briefly we need to have a dynamic workflow engine and a dynamic template engine. The workflow engine by which we can define any kind of workflows and the template engine allows us to define any kind of data structures and based on definition it can get the user input through workflow. We have been developing this product for almost 2 years. It has been a long time till we can get down with the dynamics of requirements. Till now we have developed a basic workflow and template engine and which is in use at one of the client. We have been using following technologies. GWT-Ext (Front End Framework) Hibernate (Database Layer) In between we have faced some issues with GWT-Ext (mainly browser compatibility) and database optimization due to sub classing in hibernate. For resolving GWT-Ext issue, which a dying community so we decided to move to SmartGWT. In SmartGWT we faced issues related to loading and now we are able to finalize that GWT 2.3 will be the way to go as the library is rich and performance is upto the mark. We are able to almost finalize GWT-Spring based front and middle layer. In hibernate, we found main issues with sub-classing due to that it was throwing astronomical queries and sometimes it would stop firing any queries for 5-10 seconds or may be around 30 seconds and then resume again. Few days back I came to one article related to ORM. I am a traditional .Net SQL developer and I have always worked with relational database. Reading through this article, I also found it relating to the issues I face. I am still not completely convinced of using hibernate and this article just supported my opinion. Following are the questions for which I am looking for an answer. Should we be going with Hibernate in case of dynamic database requirements and the load of the data will be heavy in future? How can we partition the data, how we can efficiently join the data, how we can optimize the queries? If the answer is no then how do we achieve database independence? Is our choice related to GWT and Spring proper or do we need to change that too? Should we use any other key value pair database if the data is dynamic in nature and it is very difficult to make it relational?

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  • .NET development on a “Retina” MacBook Pro

    - by Jeff
    The rumor that Apple would release a super high resolution version of its 15” laptop has been around for quite awhile, and one I watched closely. After more than three years with a 17” MacBook Pro, and all of the screen real estate it offered, I was ready to replace it with something much lighter. It was a fantastic machine, still doing 6 or 7 hours after 460 charge cycles, but I wanted lighter and faster. With the SSD I put in it, I was able to sell it for $750. The appeal of higher resolution goes way back, when I would plug into a projector and scale up. Consolas, as it turns out, is a nice looking font for code when it’s bigger. While I have mostly indifference for iOS, I have to admit that a higher dot pitch on the iPhone and iPad is pretty to look at. So I ordered the new 15” “Retina” model as soon as the Apple Store went live with it, and got it seven days later. I’ve been primarily using Parallels as my VM of choice from OS X for about five years. They recently put out an update for compatibility with the display, though I’m not entirely sure what that means. I figured there would have to be some messing around to get the VM to look right. The combination that seems to work best is this: Set the display in OS X to “more room,” which is roughly the equivalent of the 1920x1200 that my 17” did. It’s not as stunning as the text at the default 1440x900 equivalent (in OS X), but it’s still quite readable. Parallels still doesn’t entirely know what to do with the high resolution, though what it should do is somehow treat it as native. That flaw aside, I set the Windows 7 scaling to 125%, and it generally looks pretty good. It’s not really taking advantage of the display for sharpness, but hopefully that’s something that Parallels will figure out. Screen tweaking aside, I got the base model with 16 gigs of RAM, so I give the VM 8. I can boot a Windows 7 VM in 9 seconds. Nine seconds! The Windows Experience Index scores are all 7 and above, except for graphics, which are both at 6. Again, that’s in a VM. It’s hard to believe there’s something so fast in a little slim package like that. Hopefully this one gets me at least three years, like the last one.

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  • XMPP— openfire,PHP and python web service

    - by mlakhara
    I am planning to integrate real time notifications into a web application that I am currently working on. I have decided to go with XMPP for this and selected openfire server which i thought to be suitable for my needs. The front end uses strophe library to fetch the notifications using BOSH from my openfire server. However the notices are the notifications and other messages are to be posted by my application and hence I think this code needs to reside at the backend. Initially I thougt of going with PHP XMPP libraries like XMPHP and JAXL but then I think that this would cause much overhead as each script will have to do same steps like connection, authentication etc. and I think this would make the PHP end a little slow and unresponsive. Now I am thinking of creating a middle-ware application acting as a web service that the PHP will call and this application will handle the stuff with XMPP service. The benefit with this is that this app(a server if you will) will have to connect just once and the it will sit there listening on a port. also I am planning to build it in a asynchronous way such that It will first take all the requests from my PHp app and then when there are no more requests; go about doing the notification publishing stuff. I am planninng to create this service in Python using SleekXMPP. This is just what I planned. I am new to XMPP and this whole web service stuff ans would like to take your comments on this regarding issues like memory and CPU usage, advantages, disadvantages, scalability issues,security etc. Thanks in advance. PS:-- also if something like this already exists(although I didn't find after a lot of Googling) Please direct me there. EDIT --- The middle-level service should be doing the following(but not limited to): 1. Publishing notifications for different level of groups and community pages. 2. Notification for single user on some event. 3. User registration(can be done using user service plugin though). EDIT --- Also it should like to create pub-sub nodes and subscribe and unsubscribe users from these pub-sub nodes. Also I want to store the notifications and messages in a database(openfire doesn't). Would that be a good choice?

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  • OrbitFX: JavaFX 8 3D & NetBeans Platform in Space!

    - by Geertjan
    Here is a collection of screenshots from a proof of concept tool being developed by Nickolas Sabey and Sean Phillips from a.i. solutions. Before going further, read a great new article here written on java.net by Kevin Farnham, in light of the Duke's Choice Award (DCA) recently received at JavaOne 2013 by the a.i. solutions team. Here's Sean receiving the award on behalf of the a.i. solutions team, surrounded by the DCA selection committee and other officials: They won the DCA for helping facilitate and deploy the 2014 launch of NASA's Magnetospheric Multiscale mission, using JDK 7, the NetBeans Platform, and JavaFX to create the GEONS Ground Support System, helping reduce software development time by approximately 35%. The prototype tool that Nicklas and Sean are now working on uses JavaFX 3D with the NetBeans Platform and is nicknamed OrbitFX. Much of the early development is being done to experiment with different patterns, so that accuracy is currently not the goal. For example, you'll notice in the screenshots that the Earth is really close to the Sun, which is obviously not correct. The screenshots are generated using Java 8 build 111, together with NetBeans Platform 7.4. Inspired by various JavaOne demos using JavaFX 3D, Nick began development integrating them into their existing NetBeans Platform infrastructure. The 3D scene showing the Sun and Earth objects is all JavaFX 8 3D, demonstrating the use of Phong Material support, along with multiple light and camera objects. Each JavaFX component extends a JFXPanel type, so that each can easily be added to NetBeans Platform TopComponents. Right-clicking an item in the explorer view offers a context menu that animates and centers the 3D scene on the selected celestial body.  With each JavaFX scene component wrapped in a JFXPanel, they can easily be integrated into a NetBeans Platform Visual Library scene.  In this case, Nick and Sean are using an instance of their custom Slipstream PinGraphScene, which is an extension of the NetBeans Platform VMDGraphScene. Now, via the NetBeans Platform Visual Library, the OrbitFX celestial body viewer can be used in the same space as a WorldWind viewer, which is provided by a previously developed plugin. "This is a clear demonstration of the power of the NetBeans Platform as an application development framework," says Sean Phillips. "How else could you have so much rich application support placed literally side by side so easily?"

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  • SharpDX and game engines, back to zero?

    - by Baboon
    I'm a desktop developer (I mainly do WPF for a living) but I want to make games as a hobby. So a few months ago, I started reading blogs, gamedevSE, you name it. I understand in the C++ DirectX world, you have engines such as Unity3D with designers and whatnot, but as much as I'm ok to spend months understanding game development, I'd prefer to stay with my comfy C#. So I thought I'd develop my first games in /C#/DirectX through SharpDX But then, I can't use game engines anymore, since they're made for C++DirectX and not SharpDX. (ok, I could do P/Invokes but that defeats the purpose of SharpDX). I do know about XNA, and I also do know I can't publish to the marketplace with it (and quite frankly, I don't really want to learn an API that is in jeopardy). So how do you conceal writing games in C# and using existing game engines instead of reinventing the wheel? wait for ports? So I've found out the following: After doing the first tutorials of MOgre and digging around, it seems MOgre gives you the worse of both worlds: . You can't port it with Mono because it directly references a C++/CLI dll (Ogre) and C++/CLI isn't supported by Mono. And since it's not C++ itself, you can't make a pure build. Which, as far as I understand, means I'd be stuck on windows (and not even WinRT/Metro compatible), without capability of porting anything to mobiles or other OS (Mac/Linux). Even though it looks really nice to develop with MOgre, I'd like to learn something a little more open to future broadening. On the other hand, MonoGame seems to be a rewrite of XNA with SharpDX which sounds very promising: Mono allows me to easily port my games to other platforms, mobiles included. SharpDX allows me to access the latest DirectX versions XNA would be my first choice if only MS showed some hope for the future It really looks like MonoGame is nothing else than XNA on SharpDX. Axiom looks good too but I lack info on the subject (and pages with poor design don't give me a good feeling about an API...) XNA with SunBurn looks good: It should be portable to Mono (can anyone with experience give us feedback on that?), thus multi-platform. It's then marketplace-able since Mono itself is. Did I miss something or are 2) and 4) my best options (aside from the fact Mono doesn't support any XAML)?

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  • Play a New Random Game Each Day in Chrome

    - by Asian Angel
    Being able to unwind for a few moments each day can make the time pass so much better and help you feel refreshed. If your favorite method for relaxing is playing a quick game, then join us as we take a look at the Random Games from MyGiochi.net extension for Google Chrome. Random Games from MyGiochi.net in Action The really great thing about this extension is that each day you can have a new random game to play. If you love variety this is definitely going to be a perfect match for you. We got “Power Golf” as our random game of the day. Here is a look at things once we got started…this one can be a lot of fun to play. Time to move on to the third hole now… What if you want something different from the game available on any given day? In the upper right corner you will find links for “game categories” that you can look through (clicking on the links will open a new tab). Since the links are in Italian you might need to experiment a little bit to find the category that you want to browse through. We chose the “Games for Girls Category”. With Chrome’s new built in “Translation Bar” you can easily switch the page over to the language of your choice. Note: Translation Bar available in Dev Channel releases. Ready to choose a fun game to play! You really can have a lot of fun with the games available at My Giochi. With our “game of the day” we had a second option for other games to try. More games equals more fun! Conclusion If playing online games is your favorite way to relax then the MyGiochi.net extension will make a great addition to your browser. Have fun with all of those new games each day! Links Download the Random Games from MyGiochi.net extension (Google Chrome Extensions) Similar Articles Productive Geek Tips Geek Fun: Play Alien Arena the Free FPS GamePlay Avalanche!! in Google ChromeFriday Fun: Get Your Mario OnFriday Fun: Play Bubble QuodFriday Fun: 13 Days in Hell TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional How to Browse Privately in Firefox Kill Processes Quickly with Process Assassin Need to Come Up with a Good Name? Try Wordoid StockFox puts a Lightweight Stock Ticker in your Statusbar Explore Google Public Data Visually The Ultimate Excel Cheatsheet

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  • Invitation: Oracle EMEA Analytics & Data Integration Partner Forum, 12th November 2012, London (UK)

    - by rituchhibber
    Oracle PartnerNetwork | Account | Feedback INVITATIONORACLE EMEA ANALYTICS & DATA INTEGRATION PARTNER FORUM MONDAY 12TH NOVEMBER, 2012 IN LONDON (UK) Dear partner Come to hear the latest news from Oracle OpenWorld about Oracle BI & Data Integration, and propel your business growth as an Oracle partner. This event should appeal to BI or Data Integration specialised partners, Executives, Sales, Pre-sales and Solution architects: with a choice of participation in the plenary day and then a set of special interest (technical) sessions. The follow on breakout sessions from the 13th November provide deeper dives and technical training for those of you who wish to stay for more detailed and hands-on workshops.Keynote: Andrew Sutherland, SVP Oracle Technology. Data Integration can bring great value to your customers by moving data to transform their business experiences in Oracle pan-EMEA Data Integration business development and opportunities for partners. Hot agenda items will include: The Fusion Middleware Stack: Engineered to work together A complete Analytics and Data Integration Solution Architecture: Big Data and Little Data combined In-Memory Analytics for Extreme Insight Latest Product Development roadmap for Data Integration and Analytics Venue: Oracles London CITY Moorgate OfficesDuring this event you can learn about partner success stories, participate in an array of break-out sessions, exchange information with other partners and enjoy a vibrant panel discussion. Places are limited, Register your seat today! To register to this event CLICK HERE Note: Registration for the conference and the deeper dives and technical training is free of charge to OPN member Partners, but you will be responsible for your own travel and hotel expenses. Event Schedule November 12th:Day 1 Main Plenary Session : Full day, starting 10.30 am.Oracle Hosted Dinner in the Evening November 13th:onwards Architecture Masterclass : IM Reference Architecture – Big Data and Little Data combined(1 day) BI-Apps Bootcamp(4-days) Oracle Data Integrator and Oracle Enterprise Data Quality workshop(1-day) Golden Gate Workshop(1-day) For further information and detail download the Agenda (pdf) or contact Michael Hallett at [email protected] look forward to seeing you in there. Best regards, Mike HallettAlliances and Channels DirectorBI & EPM Oracle EMEAM.No: +44 7831 276 989 [email protected] Duncan HarveyBusiness Development Directorfor Data IntegrationM.No: +420 608 283 [email protected] Milomir VojvodicBusiness Development Manager for Data IntegrationM.No: +420 608 283 [email protected] Copyright © 2012, Oracle and/or its affiliates. All rights reserved. Contact PBC | Legal Notices and Terms of Use | Privacy

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  • CISDI Cloud - Industrial Cloud Computing Platform based on Oracle Products

    - by Wenyu Duan
    In today's era, Cloud Computing is becoming integral to the vision and corporate strategy of leading organizations and is often seen as a key business driver to achieve growth and innovation. Headquartered in Chongqing, China, CISDI Engineering Co., Ltd. is a large state-owned engineering company, offering consulting, engineering design, EPC contracting, and equipment integration services to steel producers all over the world. With over 50 years of experience, CISDI offers quality services for every aspect of production for projects in the metal industry and the company has evolved into a leading international engineering service group with 18 subsidiaries providing complete lifecycle for E&C projects. CISDI group delegation led by Mr. Zhaohui Yu, CEO of CISDI Group, Mr. Zhiyou Li, CEO of CISDI Info, Mr. Qing Peng, CTO of CISDI Info and Mr. Xin Xiao, Head of CISDI Info's R&D joined Oracle OpenWorld 2012 and presented a very impressive cloud initiative case in their session titled “E&C Industry Solution in CISDI Cloud - An Industrial Cloud Computing Platform Based on Oracle Products”. CISDI group plans to expand through three phases in the construction of its cloud computing platform: first, it will relocate its existing technologies to Oracle systems, along with establishing private cloud for CISDI; secondly, it will gradually provide mixed cloud services for its subsidiaries and partners; and finally it plans to launch an industrial cloud with a highly mature, secure and scalable environment providing cloud services for customers in the engineering construction and steel industries, among others. “CISDI Cloud” will become the growth engine for the organization to expand its global reach through online services and achieving the strategic objective of being the preferred choice of E&C companies worldwide. The new cloud computing platform is designed to provide access to the shared computing resources pool in a self-service, dynamic, elastic and measurable way. It’s flexible and scalable grid structure can support elastic expansion and sustainable growth, and can bring significant benefits in speed, agility and efficiency. Further, the platform can greatly cut down deployment and maintenance costs. CISDI delegation highlighted these points as the key reasons why the group decided to have a strategic collaboration with Oracle for building this world class industrial cloud - - Oracle’s strategy: Open, Complete and Integrated - Oracle as the only company who can provide engineered system, with complete product chain of hardware and software - Exadata, Exalogic, EM 12c to provide solid foundation for "CISDI Cloud" The cloud blueprint and advanced architecture for industrial cloud computing platform presented in the session shows how Oracle products and technologies together with industrial applications from CISDI can provide end-end portfolio of E&C industry services in cloud. CISDI group was recognized for business leadership and innovative solutions and was presented with Engineering and Construction Industry Excellence Award during Oracle OpenWorld.

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  • Analysis Services Tabular books #ssas #tabular

    - by Marco Russo (SQLBI)
    Many people are looking for books about Analysis Services Tabular. Today there are two books available and they complement each other: Microsoft SQL Server 2012 Analysis Services: The BISM Tabular Model by Marco Russo, Alberto Ferrari and Chris Webb Applied Microsoft SQL Server 2012 Analysis Services: Tabular Modeling by Teo Lachev The book I wrote with Alberto and Chris is a complete guide to create tabular models and has a good coverage about DAX, including how to use it for enriching a semantic model with calculated columns and measures and how to use it for querying a Tabular model. In my experience, DAX as a query language is a very interesting option for custom analytical applications that requires a fast calculation engine, or simply for standard reports running in Reporting Services and accessing a Tabular model. You can freely preview the table of content and read some excerpts from the book on Safari Books Online. The book is in printing and should be shipped within mid-July, so finally it will be very soon on the shelf of all the people already preordered it! The Teo Lachev’s book, covers the full spectrum of Tabular models provided by Microsoft: starting with self-service BI, you have users creating a model with PowerPivot for Excel, publishing it to PowerPivot for SharePoint and exploring data by using Power View; then, the PowerPivot for Excel model can be imported in a Tabular model and published in Analysis Services, adding more control on the model through row-level security and partitioning, for example. Teo’s book follows a step-by-step approach describing each feature that is very good for a beginner that is new to PowerPivot and/or to BISM Tabular. If you need to get the big picture and to start using the products that are part of the new Microsoft wave of BI products, the Teo’s book is for you. After you read the book from Teo, or if you already have a certain confidence with PowerPivot or BISM Tabular and you want to go deeper about internals, best practices, design patterns in just BISM Tabular, then our book is a suggested read: it contains several chapters about DAX, includes discussions about new opportunities in data model design offered by Tabular models, and also provides examples of optimizations you can obtain in DAX and best practices in data modeling and queries. It might seem strange that an author write a review of a book that might seem to compete with his one, but in reality these two books complement each other and are not alternatives. If you have any doubt, buy both: you will be not disappointed! Moreover, Amazon usually offers you a deal to buy three books, including the Visualizing Data with Microsoft Power View, another good choice for getting all the details about Power View.

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  • Hadoop growing pains

    - by Piotr Rodak
    This post is not going to be about SQL Server. I have been reading recently more and more about “Big Data” – very catchy term that describes untamed increase of the data that mankind is producing each day and the struggle to capture the meaning of these data. Ten years ago, and perhaps even three years ago this need was not so recognized. Increasing number of smartphones and discernable trend of mainstream Internet traffic moving to the smartphone generated one means that there is bigger and bigger stream of information that has to be stored, transformed, analysed and perhaps monetized. The nature of this traffic makes if very difficult to wrap it into boundaries of relational database engines. The amount of data makes it near to impossible to process them in relational databases within reasonable time. This is where ‘cloud’ technologies come to play. I just read a good article about the growing pains of Hadoop, which became one of the leading players on distributed processing arena within last year or two. Toby Baer concludes in it that lack of enterprise ready toolsets hinders Hadoop’s apprehension in the enterprise world. While this is true, something else drew my attention. According to the article there are already about half of a dozen of commercially supported distributions of Hadoop. For me, who has not been involved into intricacies of open-source world, this is quite interesting observation. On one hand, it is good that there is competition as it is beneficial in the end to the customer. On the other hand, the customer is faced with difficulty of choosing the right distribution. In future, when Hadoop distributions fork even more, this choice will be even harder. The distributions will have overlapping sets of features, yet will be quite incompatible with each other. I suppose it will take a few years until leaders emerge and the market will begin to resemble what we see in Linux world. There are myriads of distributions, but only few are acknowledged by the industry as enterprise standard. Others are honed by bearded individuals with too much time to spend. In any way, the third fact I can’t help but notice about the proliferation of distributions of Hadoop is that IT professionals will have jobs.   BuzzNet Tags: Hadoop,Big Data,Enterprise IT

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  • Computer / Software Engineering vs Other Engineering Disciplines [closed]

    - by Mohammad Yaseen
    Since this was a rather specific question, I have tried my best to present this question in a format which fits the style of this site. Please comment if it can be improved further. I have to choose the Engineering discipline on 6th Nov. My interest is in Robotics, hardware-level programming, Artificial Intelligence and back-end programming. I am currently working as a freelance developer using mainly PHP and occasionally working with GWT.I am somewhat familiar with C# and Python too. I am not super good at programming but I do like it. I am thinking to choose Computer and Information Systems Engineering as this is what I love but all the eggheads of my city are going to Mechanical Engineering and when I ask one of them Why are you choosing this? They say It's my interest and for job and the money. Basically I am confused between CIS and Mechanical Engineering, specifically the job market for both. Since this is a programmers' site I think following questions will be relevant . I am asking this because I want to take advice from professionals in this field before diving too deep . Are you happy with your job / work and pay. Are you satisfied with the work environment and career growth Do you feel OK (or great?) about the near and/or distant future of your industry. Why should a person choose Computer if he has other choices i.e what this industry has to offer in particular which other fields of work don't This industry is subject to rapid changes and you have to learn continuously throughout your entire career. Does this learning and constant hard work pay off ? In my country there is no hardware manufacturing. So most of CIS graduates (like Software Engineers) work in Software Houses. What is the scenario in your country. Is a degree titled 'Software' necessary or companies will take Computer Engineers too if they have relevant experience. I am asking this because I plan to move abroad for work. This is going to be something which I'll do for the rest of my life so I am a bit confused about the right choice. You can view the course outline for both programmes below. Computer and Information Systems Engineering. Mechanical Engineering

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