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  • ExpressCache not working after Windows 8 reinstall on Samsung Series 7 Gamer

    - by Morven
    I have a Samsung Series 7 Gamer laptop which came with Windows 8. After doing a reinstall of Windows, the ExpressCache software is no longer caching. Running "eccmd -info" shows me that the software is present and it has the MSATA drive partition configured. However, it's not actually caching anything. These are the results after having the system booted for days: C:\windows\system32eccmd -info ExpressCache Command Version 1.0.94.0 Copyright¬ 2010-2012 Condusiv Technologies. Date Time: 11/3/2013 12:26:20:263 (JAMETHIEL #36) EC Cache Info ================================================== Mounted : Yes Partition Size : 7.46 GB Reserved Size : 3.00 MB Volume Size : 7.46 GB Total Used Size : 86.50 MB Total Free Space : 7.38 GB Used Data Size : 16.63 MB Used Data Size on Disk : 84.38 MB Tiered Cache Stats ================================================== Memory in use : 32.00 MB Blocks in use : 136 Read Percent : 0.02% Cache Stats ================================================== Cache Volume Drive Number : 1 Total Read Count : 97242 Total Read Size : 4.13 GB Total Cache Read Count : 0 Total Cache Read Size : 595.50 KB Total Write Count : 161546 Total Write Size : 5.89 GB Total Cache Write Count : 0 Total Cache Write Size : 0 Bytes Cache Read Percent : 0.01% Cache Write Percent : 0.00% As you can see on the last two lines, cache read and write percent is nigh on zero. Anyone know where to look next? The only guides I can find deal with ExpressCache not being present or not having a configured drive.

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  • Windows 7 memory usage

    - by lydonchandra
    Physical memory(MB) for Windows 7 Total 4021 Cached 1113 Available 768 Free 174 Memory used 3.25GB At this point, windows7 asks me to close some programs because "system memory is low". From my understanding reading articles, I still have 768 MB free memory, why does windows7 complain? Also what does Cached memory refer to? Is this part of memory that Windows7 reserved for itself meaning it's free to use by Windows7 (and means I have about 768 + 1113 MB of free mem?)?

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  • Why dd finishes instantly when pipelining to cat?

    - by agsamek
    I start bash on Cygwin and type: dd if=/dev/zero | cat /dev/null It finishes instantly. When I type: dd if=/dev/zero > /dev/null it runs as expected and I can issue killall -USR1 dd to see the progress. Why does the former invocation finishes instantly? Is it the same on a Linux box? * Explanation why I asked such stupid question and possibly not so stupid question I was compressing hdd images and some were compressed incorrectly. I ended up with the following script showing the problem: while sleep 1 ; do killall -v -USR1 dd ; done & dd if=/dev/zero bs=5000000 count=200 | gzip -c | gzip -cd | wc -c Wc should write 1000000000 at the end. The problem is that it does not on my machine: bash-3.2$ dd if=/dev/zero bs=5000000 count=200 | gzip -c | gzip -cd | wc -c 13+0 records in 12+0 records out 60000000 bytes (60 MB) copied, 0.834 s, 71.9 MB/s 27+0 records in 26+0 records out 130000000 bytes (130 MB) copied, 1.822 s, 71.4 MB/s 200+0 records in 200+0 records out 1000000000 bytes (1.0 GB) copied, 13.231 s, 75.6 MB/s 1005856128 Is it a bug or am I doing something wrong once again?

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  • Resize a RAID 1 volume on OSX Snow Leopard - how? (Note: software raid)

    - by Emmel
    I've scoured the Internet in search of an answer to this question, and as usual with OSX-related topics, I often don't find any deep-dive technical explanations sufficient enough to feel confident doing dangerous things. Here is my question: I have a Mac Pro, running OSX 10.6.2. I have, as my main root/boot disk, a RAID 1 volume called "Mirror1". Mirror1 is comprised of two 1 TB disks. Mirror1, however, is fixed at 640 GB. That's because, I originally took a 640GB disk, bought a terabyte disk, mirrored it (using diskutil appleraid enable...), when it synced I removed the 640GB and replaced it with a second 1 TB disk, and synced again. Voila! A single 640 GB replaced by two 1 TB disks in a mirror.. Actually, no. There's still something missing from the equation: Mirror1 needs to be expanded from 640GB to 1 TB to match the partition sizes on each of those disks. How do I do this? Perhaps the diskutil output will help: -> diskutil list /dev/disk0 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *1.0 TB disk0 1: EFI 209.7 MB disk0s1 2: Apple_RAID 999.9 GB disk0s2 3: Apple_Boot Boot OSX 134.2 MB disk0s3 /dev/disk1 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *1.0 TB disk1 1: EFI 209.7 MB disk1s1 2: Apple_RAID 999.9 GB disk1s2 3: Apple_Boot Boot OSX 134.2 MB disk1s3 /dev/disk2 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *640.1 GB disk2 1: EFI 209.7 MB disk2s1 2: Apple_HFS Mac Disk 2 536.7 GB disk2s2 3: Microsoft Basic Data BOOTCAMP 103.1 GB disk2s3 /dev/disk3 #: TYPE NAME SIZE IDENTIFIER 0: Apple_HFS Mirror1 *639.8 GB disk3 -> diskutil appleraid list AppleRAID sets (1 found) =============================================================================== Name: Macintosh HD Unique ID: 1953F864-B474-4EB6-8E69-41834EBD0247 Type: Mirror Status: Online Size: 639.8 GB (639791038464 Bytes) Rebuild: manual Device Node: disk3 ------------------------------------------------------------------------------- # Device Node UUID Status ------------------------------------------------------------------------------- 0 disk1s2 25109BAE-5697-40EA-B612-0217851444F7 Online 1 disk0s2 11B83AB0-8148-4DB6-8761-DEF08C855F8D Online =============================================================================== Thanks in advance.

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  • Failing RAM, or something else?

    - by Thanatos
    I have a IBM Thinkpad T43, currently running Windows XP. Programs were crashing, XP was blue-screen-of-deathing, (more than usual) - it was basically unusable, but I couldn't get any informative error out of XP. I booted Ubuntu off a thumbdrive, which made it to the desktop, but as soon as I started to try to do anything, X segfaulted, along with several other services, followed quickly by kernel warnings and a kernel panic. I'm currently running Memtest86+ on this machine, which is spitting out numerous errors. (16k over 3 passes, and counting) The failing areas are numerous, and look something like this: 0001055da4 - XX.X MB, etc. The addresses that fail seem to cluster around 0-20 MB, 250MB, and, more rarely, 750MB, 1000MB, and 1200MB. However, a lot (but not all) of the failing addresses that I've seen end in XXXXXXX?da4 where the ? is a 1 or a 5. The machine has two sticks of RAM, one 512MB, one 1024 MB, the 512MB mapped to the lower addresses, the 1024 MB stick following. Is this indeed RAM failure, or should I consider other things before purchasing more RAM?

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  • Failing RAM, or something else? [closed]

    - by Thanatos
    I have a IBM Thinkpad T43, currently running Windows XP. Programs were crashing, XP was blue-screen-of-deathing, (more than usual) - it was basically unusable, but I couldn't get any informative error out of XP. I booted Ubuntu off a thumbdrive, which made it to the desktop, but as soon as I started to try to do anything, X segfaulted, along with several other services, followed quickly by kernel warnings and a kernel panic. I'm currently running Memtest86+ on this machine, which is spitting out numerous errors. (16k over 3 passes, and counting) The failing areas are numerous, and look something like this: 0001055da4 - XX.X MB, etc. The addresses that fail seem to cluster around 0-20 MB, 250MB, and, more rarely, 750MB, 1000MB, and 1200MB. However, a lot (but not all) of the failing addresses that I've seen end in XXXXXXX?da4 where the ? is a 1 or a 5. The machine has two sticks of RAM, one 512MB, one 1024 MB, the 512MB mapped to the lower addresses, the 1024 MB stick following. Is this indeed RAM failure, or should I consider other things before purchasing more RAM?

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  • Diagnosing RAM issues

    - by TaylorND
    I have an old Acer Aspire T180 desktop. The specs are as follows: AMD Athlon 64 3800+ 2.4GHz 1GB DDR2 SDRAM 160GB DVD-Writer (DVD±R/±RW) Gigabit Ethernet 17" Active Matrix TFT Color LCD Windows Vista Home Basic Mini-tower AST180-UA381B According to the information in the computer's documentation the computer comes with 1 GB of RAM. It has two DDR2 SDRAM sticks. I used to have Windows Vista installed. Then I removed it and install Windows 7, and now I have since removed Windows 7 and installed Windows XP. According to Windows XP with both RAM sticks in the computer has 768 MB. Isn't this supposed to be 1 GB of RAM or 1024 MB of RAM? Is the amount of RAM installed only partly used by the Operating System? Is there's something I'm missing? If I remove either one of the RAM sticks I'm left with 448 MB of RAM. These numbers don't seem to add up. If each of the RAM sticks contains at least 448 MB of RAM shouldn't they (both being in) provide 896 MB of RAM. Even then, isn't that less than a GB of RAM? I'm not too experienced in hardware so I thought this would be the best place to ask. As a follow up question, is the RAM I have enough to run/multitask with Windows XP efficiently? I plan to do a lot of computing with the system (although not gaming), should I invest in more RAM?

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  • How to identify who is using Hardware Reserved Memory in Windows 7

    - by blasteralfred
    I run Windows 7 x86 Home Premium. I have an installed physical memory of 4 GB, out of which, 2.96 GB is usable (My Computer Properties). I checked the memory usage using Resource Monitor and found 3036 MB / 4096 MB is available. I noticed that 1060 MB is unavailable since it is reserved by some "Hardware component(s)". I would like to know which hardware component is using this 1060 MB. Is there any way or tool to identify this? Note: I know that Windows 7 Home Premium x86 supports a maximum of 4GB RAM.

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  • 1K incoming http post requests per second, each with a 10-50K file

    - by Blankman
    I'm trying to figure out what kind of server setup I will need to support: 1K http post requests per second each post will contain a xml file between 5-50K (average of 25 kilobytes) Even if I get a 100 Mb/s connection with my dedicated box (they usually give 10 Mb/s but you can upgrade), from my calculations that is about 12K kb/s which means about 480 25kb files per second. So this means I need around 3 servers then, each with 100 Mb/s connection. Would a single server running HAProxy be able to redirect the requests to other servers or does this mean I need to get something else that can handle more than 100 Mb/s to proxy things out to the other servers? If my math is off I'd appreciate any corrections you may have.

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  • New 2.5" hard drive for laptop - What to compare?

    - by TFM
    I'm having trouble finding a new (bigger) hard drive for my laptop. I came across some criteria that I never thought about before, while I was checking a price comparison site. Of course, that made me more confused. First of all, I will probably go with something above 250 GB, and at least 16 MB cache. Now the confusing part: Most new drives are 7200 RPM, as opposed to good old 5400 RPM. 7200 RPM used to mean extra heat, but suddenly it's almost impossible to find a 5400 RPM in 2.5". What did I miss? Second question: Internal data transfer rate. My old drive has a rate of around 60 MB, but new drives have values like 100 MB or more (e.g. 150 MB). How important is this "internal data transfer rate"?

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  • Internet is not working in base machine

    - by surendar
    I have a Ubuntu desktop. I am running a virtual windows machine using virtual box. Few days before Internet is not working in Ubuntu but it is working in the virtual machine. Even the samba shares are also accessible. I don't know why internet is not working in the base machine. I have tried to ping google.com, but it returns Ubuntu@desktop:~$ ping google.com ping: unknown host google.com ifconfig command's output Ubuntu@desktop:~$ ifconfig eth0 Link encap:Ethernet HWaddr 00:27:0e:1b:86:2a inet addr:192.168.1.7 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::227:eff:fe1b:862a/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:38221 errors:0 dropped:0 overruns:0 frame:0 TX packets:28161 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:39144616 (39.1 MB) TX bytes:6143919 (6.1 MB) Interrupt:27 Base address:0x2000 eth0:0 Link encap:Ethernet HWaddr 00:27:0e:1b:86:2a inet addr:192.168.2.7 Bcast:192.168.2.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:27 Base address:0x2000 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:14944 errors:0 dropped:0 overruns:0 frame:0 TX packets:14944 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1735451 (1.7 MB) TX bytes:1735451 (1.7 MB) vmnet1 Link encap:Ethernet HWaddr 00:50:56:c0:00:01 inet addr:192.168.243.1 Bcast:192.168.243.255 Mask:255.255.255.0 inet6 addr: fe80::250:56ff:fec0:1/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:77 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) vmnet8 Link encap:Ethernet HWaddr 00:50:56:c0:00:08 inet addr:172.16.162.1 Bcast:172.16.162.255 Mask:255.255.255.0 inet6 addr: fe80::250:56ff:fec0:8/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:78 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

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  • Tips for debugging Samba performance?

    - by j-g-faustus
    Samba gives me 24 MB/s read and 44 MB/s write, while ftp gives 97 and 112 MB/s under the same circumstances. The documentation says that Generally, you should find that Samba performs similarly to ftp at raw transfer speed. In my case it clearly doesn't. Where can I find tips on how to debug Samba performance? Or alternatively tips for replacing Samba with something else? (I can't use ftp, unfortunately, as I need something that can be used with rsync/rsnapshot.) More details: Both computers are running Ubuntu 10.10 (using Samba because I have a Mac as well) The Samba share is on a local home network, mounted as $ mount ... //server.local/share/ on /mnt/share type cifs (rw,mand) Samba performance was tested by copying (cp) a single file of ~4GB to and from the share, using time for timing and calculating transfer speed by hand. ftp performance are the numbers from the ftp client for get/put of the same file. iperf gives network speed ~900 Mbits/s bonnie++ gives disk speeds 200 MB/s on both sides for block reads as well as block writes Tried changing the parameters suggested in the performance tuning HOWTO (read/write raw, read size, socket options), most of them made little to no difference. (The one that made a difference caused write speed to drop 50%.)

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  • Access Officejet Pro L7590 memory card reader

    - by luri
    I can't manage to access my printer's memory card reader in Nautilus. I can just access it with hp-unload. Here's a sample output from this command: lubuntu@L-X6:~$ hp-unload hp:/net/Officejet_Pro_L7500?zc=HP065193 HP Linux Imaging and Printing System (ver. 3.10.6) Photo Card Access Utility ver. 3.3 Copyright (c) 2001-9 Hewlett-Packard Development Company, LP This software comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to distribute it under certain conditions. See COPYING file for more details. Using device: hp:/net/Officejet_Pro_L7500?zc=HP065193 |error: Photo card write failed (Card may be write protected) / Photocard on device hp:/net/Officejet_Pro_L7500?zc=HP065193 mounted DO NOT REMOVE PHOTO CARD UNTIL YOU EXIT THIS PROGRAM warning: Photo card is write protected. Type 'help' for a list of commands. Type 'exit' to quit. pcard: / > ls \ Name Size Type dcim/ directory eos_digi.tal 0 B unknown/unknown 1 files, 0 B pcard: / > cd dcim |pcard: /dcim > ls | Name Size Type . directory .. directory 100eos5d/ directory 267canon/ directory 270canon/ directory 271canon/ directory 272canon/ directory 0 files, 0 B pcard: /dcim > cd 272canon -pcard: /dcim/272canon > ls \ Name Size Type . directory .. directory _mg_7201.jpg 3.1 MB image/jpeg ...........(some more files)................. _mg_7281.jpg 2.5 MB image/jpeg _mg_7282.jpg 2.5 MB image/jpeg 82 files, 241.6 MB (253377883) How can I acess it from nautilus or mount it as a filesystem? Note that this is similar to this other question: Can't get HP Officejet 6500 card reader to work. but actually there seemed to be no supported device here, while in my case I manage to access the memory card from hp-unload.

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  • "Size mismatch" apt error when installing openJDK

    - by siddanth
    when i try install openjdk-7-jre-headless i am getting the following error: Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be installed: ca-certificates-java icedtea-7-jre-jamvm java-common libcups2 libjpeg62 liblcms2-2 libnspr4 libnss3 libnss3-1d openjdk-7-jre-lib tzdata tzdata-java Suggested packages: default-jre equivs cups-common liblcms2-utils libnss-mdns sun-java6-fonts ttf-dejavu-extra ttf-baekmuk ttf-unfonts ttf-unfonts-core ttf-sazanami-gothic ttf-kochi-gothic ttf-sazanami-mincho ttf-kochi-mincho ttf-wqy-microhei ttf-wqy-zenhei ttf-indic-fonts-core ttf-telugu-fonts ttf-oriya-fonts ttf-kannada-fonts ttf-bengali-fonts The following NEW packages will be installed: ca-certificates-java icedtea-7-jre-jamvm java-common libcups2 libjpeg62 liblcms2-2 libnspr4 libnss3 libnss3-1d openjdk-7-jre-headless openjdk-7-jre-lib tzdata-java The following packages will be upgraded: tzdata 1 upgraded, 12 newly installed, 0 to remove and 122 not upgraded. Need to get 41.2 MB/43.5 MB of archives. After this operation, 64.0 MB of additional disk space will be used. Get:5 http://in.archive.ubuntu.com/ubuntu/ oneiric/main java-common all 0.42ubuntu2 [62.4 kB] Fetched 41.1 MB in 4min 5s (167 kB/s) Failed to fetch http://in.archive.ubuntu.com/ubuntu/pool/main/j/java-common/java-common_0.42ubuntu2_all.deb Size mismatch E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing? am unable to solve this. Am i missing something? please help me out in solving this.

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  • Slow USB 3.0 speeds

    - by Cygnus X
    Long time forum forager, first time poster. I bought a Toshiba 500 GB usb 3.0 hard drive last week and instantly ran home to see how fast I could push it. On my desktop (that I built) I was able to get 200 MB/sec. On my laptop (MSI FX something or other), which I dual boot Windows 7/Ubuntu 11.10, I was able to get about 120 MB/sec on Windows, but on Ubuntu, i get about 25 MB/sec. lsusb shows: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 003: ID 0bda:0139 Realtek Semiconductor Corp. Bus 002 Device 003: ID 1532:0015 Razer USA, Ltd Bus 004 Device 002: ID 0480:a007 Toshiba America Info. Systems, Inc. lspci -vvv shows that the USB 3.0 host controller is using the kernel driver in use is xhci_hcd. dmesg |grep usb shows: [ 1815.455368] usb 4-1: new SuperSpeed USB device number 2 using xhci_hcd [ 1815.475459] scsi7 : usb-storage 4-1:1.0 The built in disk utility says its connected via usb at 705 MB/s, but that's not what it reports when I transfer files over to it. Not really sure what to do at this point. Any help would be very nice, thank you.

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  • How do I partition my Hard drive to install Kubuntu?

    - by Xdflames
    I am a complete newbie to partitioning and I would like some guidance here. Can anyone explain what exactly I should be doing here? I am installing Kubuntu 12.04 on a currently Windows 7 laptop. My current Partitions say this: /dev/sda /dev/sda1 ntfs 104 MB 35 MB /dev/sda2 ntfs 319965 MB 87164 MB Basically, what I want is some guidance on what exactly to do here. All I want is a partition for my OS (Which will be Kubuntu 12.04) and a partition for all of my data. I also want to restart fresh with my hard drive, with only what I mentioned on here. I am installing Kubuntu from a flash drive (I set it up as a bootable device with Universal-USB-Installer-1.9.0.9), as I do not have any blank CDs/DVDs to burn to. What should I name my partitions? What should I set the type as? What size do they need to be? Edit: My hard drive is 320GB. Just looked it up in my BIOS. This computer will mainly be used for internet browsing and overall just messing around with the Linux OS.

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  • Wireless is connected, but can't browse the Internet (or connection goes completely)

    - by user261007
    I'd like some help with this, please. Will be very glad is anyone will point me in the right direction. Thank you in advance! This is when the connection is present and browsing: eth0 Link encap:Ethernet HWaddr 50:46:5d:4a:9e:4f 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) 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:65536 Metric:1 RX packets:2666 errors:0 dropped:0 overruns:0 frame:0 TX packets:2666 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:228844 (228.8 KB) TX bytes:228844 (228.8 KB) wlan0 Link encap:Ethernet HWaddr dc:85:de:1c:91:f9 inet addr:192.168.1.147 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::de85:deff:fe1c:91f9/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:18780 errors:0 dropped:0 overruns:0 frame:0 TX packets:12817 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:21198762 (21.1 MB) TX bytes:1746891 (1.7 MB) When connection goes: wlan0 Link encap:Ethernet HWaddr dc:85:de:1c:91:f9 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:209503 errors:0 dropped:0 overruns:0 frame:0 TX packets:132560 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:268811733 (268.8 MB) TX bytes:15479814 (15.4 MB)

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  • Image mapping using lookup tables [on hold]

    - by jblasius
    I have an optimization problem. I'm using a look-up table to map a pixel in an image: for (uint32_t index = 0u; index < imgSize; index++) { img[ lt[ index ] ] = val; } Is there a faster way to do this, perhaps using a reinterpret_cast or something like that? I am accessing two different memory addresses, so what is the compiler doing? One solution is to do a set of reads to access adjacent memory addresses. struct mblock { uint32_t buf[10u]; }; mblock mb; for (uint32_t index = 0u; index < imgSize; index += 10u) { mb = *reinterpret_cast<mblock*>(lt + index)); for (uint8_t i = 0u; i < 10u; i ++) { mb.buf[i] += img; } for (uint8_t i = 0u; i < 10u; i ++) { *( mb.buf[i] ) = val; } } This speeds up the code because I'm separating the image access from the table look-up; the positions in the look-up table are adjacent. I still get the image access problem as it is accessing random address positions.

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  • Wifi Hotspot not created in ubuntu 12.04

    - by user2406568
    I am using Hp Pavillion g4 with braodcom wireledd adpater. I have the following hardware configuration, for lan and wifi eth0 Link encap:Ethernet HWaddr 10:1f:74:b2:61:cc inet addr:10.3.10.45 Bcast:10.3.11.255 Mask:255.255.252.0 inet6 addr: fe80::121f:74ff:feb2:61cc/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:190855 errors:0 dropped:0 overruns:0 frame:0 TX packets:133209 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:77642990 (77.6 MB) TX bytes:25290447 (25.2 MB) Interrupt:44 Base address:0x6000 eth1 Link encap:Ethernet HWaddr 38:59:f9:7d:d6:b2 inet addr:10.3.9.180 Bcast:10.3.11.255 Mask:255.255.252.0 inet6 addr: fe80::3a59:f9ff:fe7d:d6b2/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:245562 errors:82 dropped:0 overruns:0 frame:408011 TX packets:90383 errors:260 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:140772881 (140.7 MB) TX bytes:13041542 (13.0 MB) Interrupt:16 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:3230 errors:0 dropped:0 overruns:0 frame:0 TX packets:3230 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:435198 (435.1 KB) TX bytes:435198 (435.1 KB) whenever I click on create hotspot nothing happens. Any solution???

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  • Slow gvfs Samba Performance

    - by Wolfgang
    if I use/acces a Samba Share using Nautilus or manually using "gvfs-mount smb://SERVER-IP/Share" I get a poor Performance, only about 7 mb/s on my 100 Mbit Network. If I access the same Share on Windows I get Fullspeed 100 Mbit (About 11 mb/s), also if I mount using sudo mount -t cifs //SERVER-IP/Share /mountpount which uses cifs instead of gvfs I get fullspeed too, so can anyone tell me if there is a Performance Problem/Bug in gvfs or how gvfs is using SMB Shares differerently ? I tested read Perfomance (From my Network Samba Share) with multiples files and always, the cifs-Version is fullspeed and the GVFS-Version has some mb/s less. After some research I found some tips to optimize the Samba Settings of my Ubuntu Installation and some network tuning tips, but as the CIFS mounted share gets the full Network Speed I don't believe its that kind of problem.

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  • Difference between () and [] in Perl6 [migrated]

    - by Ask and Learn
    Learning Perl 6 and had trouble to understand following Perl 6 one liner. version of Perl 6 - rakudo-star: stable 2014.04 (bottled) This works fine, array/list is sorted [njia@mb-125:~] : perl6 -e 'say [2443,5,33, 90, -9, 2, 764].sort' -9 2 5 33 90 764 2443 But this does not sort the array/list, if [].sort works why @s.sort does not? [njia@mb-125:~] : perl6 -e 'my @s = [2443,5,33, 90, -9, 2, 764]; @s.sort.say' 2443 5 33 90 -9 2 764 Change from [] to () [njia@mb-125:~] : perl6 -e 'my @s = (2443,5,33,90,-9,2,764); @s.sort.say' -9 2 5 33 90 764 2443

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  • PAE on Ubuntu 12.04

    - by JamesStewy
    I am having trouble using PAE on Ubuntu 12.04 LTS 32bit. I recently upgraded from 4 to 8gb of RAM but PAE doesn't appear to have picked this up. When I run "grep --color=always -i PAE /proc/cpuinfo" I get pae in the list. When I run "dmidecode | grep Size | grep MB" Installed Size is 3825 but the Maximum Total Memory Size: 8192 MB. When I check the BIOS it says there is 8192 MB available and the computer fully supports I have followed everything I can find on the internet (including this https://help.ubuntu.com/community/EnablingPAE) and nothing is working. My Computer is a Toshiba Portege m750. It has an Intel Centrino Core 2 Duo processor. Bought in 2009 Thanks, JamesStewy

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  • Acer Extensa 5620 - Graphic unknown!

    - by Nycxzon
    I install Ubuntu 12.04 Beta 2, I found out the my graphic driver is "Unknown" and experience is "Standard". Please help me know how to install my graphic driver. as per my laptop specs: Mobile Intel GM965 Express Chipset with integrated 3D graphics, featuring Intel Graphics Media Accelerator (GMA) X3100 with up to 358/3845 MB of Intel Dynamic Video Memory Technology 4.0 (8 MB of dedicated system memory, up to 350/3765 MB of shared system memory), supporting Microsoft DirectX 9. Hope you can help me! Thanks in advance! Noob @ Ubuntu :) Updates! ______________ I found a solution! I found a site where I ask how to check the graphic of my system. by using terminal command "glxinfo" command ask me to install mesa-utils! and update. After that, My graphic driver is listed! Thanks for your continues support! :)

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