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  • Rsync over NFS with QoS: How to view real transfer speed?

    - by Ian Mackinnon
    We have a bandwidth limit between a Linux server and a NAS, created using 'tc' with an IP filter. When writing to an NFS mount of the NAS, rsync claims a very high transfer speed for each file and then waits a long time before acknowledging that everything has finished. The total time taken is consistent with the QoS limit and the time taken by the same transfer over FTP. Why does the write to the NFS mount report higher transfer speeds than are actually happening over the network? How can I monitor the actual bandwidth of the transfer?

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  • How to calculate required switch speed based on network usage?

    - by tobefound
    I have a 48 port HP Procurve Switch 2610 (J9088A) that can handle 13.0 million PPS (packets per second) and features wire speed switching capacity at 17.6Gbps. First off, what does that REALLY mean? Where do I start when trying to figure out if my office (with 70 employees) will be well setup with this switch? How to calculate through-put based on a user average load of X MB per day? 90% of the folks will only be sending email, access random websites, etc... the other 10% will be conducting heavier tasks like moving image files (10 MB) across network shares, constant external FTP streams through the switch to a server etc... Is this switch good enough?

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  • Use ImageMagick to convert TIFF to PNGs, how to improve the speed?

    - by Woo
    I am using "convert" from IM to get PNGs from multi-page TIFF files, everything is good except the speed. From "convert" documentation, I found: For the MNG and PNG image formats, the quality value sets the zlib compression level (quality / 10) and filter-type (quality % 10). For compression level 0, the Huffman-only strategy is used, which is fastest but not necessarily the worst compression. The default PNG compression is 75. So I tried "-quality 0", but almost no changes with the spreed. Anyone can share the ideas of how to improve the spreed? Here are my command: convert 100Pages.tif[0,1,2,3,4,5] -quality 0 100Pages.png Thanks!

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  • Terminal runs svn commands very slowly, how can I speed this up?

    - by Paul
    Spending all day in terminal is beginning to get frustrating. We're working with large CakePHP projects, including a ton of schema files and complex controllers. Whenever I go into a project, and enter svn up, or svn ci my system chokes. It takes a good 15-30 seconds before it returns what revision number I'm on. I'm running OSX 10.6 on a Macbook Pro. Any reasoning behind this? Anyway I could fix this speed issue?

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  • Terminal runs svn commands very slowly, how can I speed this up?

    - by Paul
    Spending all day in terminal is beginning to get frustrating. We're working with large CakePHP projects, including a ton of schema files and complex controllers. Whenever I go into a project, and enter svn up, or svn ci my system chokes. It takes a good 15-30 seconds before it returns what revision number I'm on. I'm running OSX 10.6 on a Macbook Pro. Any reasoning behind this? Anyway I could fix this speed issue?

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  • Is 50% download speed on a wireless G network normal?

    - by Bartlomiej Skwira
    I have a wired connection of about 36Mb/s, but my wireless speed is max at about 18-19Mb/s. I have a WRT54G-TM (T-Mobile, 802.11G) router with DD-WRT firmware - I've upgraded it to latest build. Done some settings changes: changed channel - 13 wireless network mode - G-only ACK Timing - 0 Fragmentation Threshold and RTS Threshold - 2304 Basic Rate - All Signal/Noise ratio: -46/-94, signal quality ~50-60%. Is this normal with G networks? Edit: The AP is located about 2 meters from laptop, no walls or metal objects, but its next to a TV. I've done a channel scan (had problems locating it, go to "Status - Wireless - Site survey" - lame naming) and everybody else is on channels 1 and 6. Switched to channel 11 but it didn't help. As for trasmit power I got best results with default 71mw. The antenna might be a factor, I'm using the default 2 antennas.

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  • Not getting my normal internet speed but my other computers can?

    - by Dennis
    I have Comcast Xfinity and I cannot reach anywhere near my promised speed. My family desktop which is hardwired into the router reaches to 60Mbps and so do my parents computers and my brothers. I cannot seem to get anywhere close to it, I know with being wireless I won't reach it, but I should at least get somewhere close. I can only pull 6Mbps and thats terrible for what I should be receiving. Any clue what could be wrong here? Edit: I have 100% signal and I'm not behind any walls

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  • HP Pavilion dv6 overheating, how do I set fan speed to 100% all the time?

    - by henpenben
    So I have a HP Pavilion dv6, and it works fine. But when I play, say, Minecraft, the temperature jumps to around 60c-70c. I wouldn't be bothered by this, but I bought this computer and played Minecraft on my lap. The laptop overheated and the video card melted. (I'm not kidding) So I was wondering how I could set the fan speed on my laptop to 100% all the time so it never overheats. HP has this "HP Coolsense" thing that when I pick up the laptop and wiggle it around a little bit and pretend it's unstable, the fan cranks up to 100%. I want 100% all the time without me having to pick up the laptop every 10 minutes. Thanks, henpenben

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  • How can I speed up a MySQL retore from a dump file?

    - by Dave Forgac
    I am restoring a 30GB database from a mysqldump file to an empty database on a new server. When running the SQL from the dump file, the restore starts very quickly and then starts to get slower and slower. Individual inserts are now taking 15+ seconds. The tables are MyISAM. The server has no other active connections. SHOW PROCESSLIST; only shows the insert from the restore (and the show processlist itself). Does anyone have any ideas what could be causing the dramatic slowdown? Are there any MySQL variables that I can change to speed the restore while it is progressing?

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  • Will readyboost speed up a secondary partion or harddrive?

    - by Sebastian
    I'm building a new computer and plan on using a few spare USB sticks with readyboost to cache disk writes. I'll be running Windows 7 Enterprise SP1 x64 I have a single 2 TB disk, and plan to make a partition for windows (100 GB) and use the rest for data. I know Readyboost will work nicely for the C drive, but am unable to find any information on whether it will accelerate a second drive or partition. Just to clarify, I'm NOT trying to use the harddrive instead of the usb sticks. I'm trying to speed up the second partition using the USB sticks So, will readyboost work for a secondary partion or harddrive?

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  • How can I speed up a MySQL restore from a dump file?

    - by Dave Forgac
    I am restoring a 30GB database from a mysqldump file to an empty database on a new server. When running the SQL from the dump file, the restore starts very quickly and then starts to get slower and slower. Individual inserts are now taking 15+ seconds. The tables are MyISAM. The server has no other active connections. SHOW PROCESSLIST; only shows the insert from the restore (and the show processlist itself). Does anyone have any ideas what could be causing the dramatic slowdown? Are there any MySQL variables that I can change to speed the restore while it is progressing?

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  • How Can I Speed Up Terminal.app or iTerm on Mac OSX?

    - by pmaiorana
    Every time I launch either iTerm or Terminal after not using it for a few hours, it takes anywhere from 10-20 seconds to return a prompt. The screen is blank, and although I can type I can't actually run any commands. If I quit either application, subsequent launches (if done relatively soon thereafter) are quite fast. The slowness only seems to occur if the app wasn't running for a few hours. I'm running OSX 10.5.7 on a MacBookPro. I have the exact same setup on another computer, with no slow downs. Any ideas how to speed things up again?

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  • Five geeky things you must do with your Android Smartphone

    - by Gopinath
    Android is the Windows of next generation. Its open, free, widely adopted and smart enough to outsmart Apple’s iOS. It’s a stolen product and cheap imitation of iOS, but Steve Job’s once quoted saying good artists copy and great artists steal. Alright, this post is not about Android vs iOS or is it really stolen or not. Android is a great OS for mobile devices and it lets you do amazing through mobiles.  In this post I want to write about the geeky things we can do with an Android Smartphone. Control your computer using mobile Assume that it is a lazy weekend and you are on a couch watching movies on a laptop which is a meter away. Now you want to adjust volume or skip a scene/song. How to control your laptop without moving out of couch? Just install Universal Remote free app on your smartphone and start control your computer using phone. Universal Remove app controls computers over Wifi or Bluetooth networks with dedicated remote controls for various media players and applications like YouTube, VLC & Spotify.  The application is very easy to use and works amazingly well in controlling computers. Few of the remote controls provided in the app are – Mouse, Keyboard, Media Controls, Power, Start, Windows Media Player, VLC Player,  YouTube. There is also paid version of this app with additional remotes, but for most of the users Free version is good enough. Stream YouTube videos playing on you mobile to computer You can stream YouTube videos playing on your mobile to computer/smart tv. This is something similar to Apple’s most popular AirPlay feature, but works only with YouTube videos. To start streaming videos install Google’s YouTube Remote on your smartphone, open youtube.com/leanback on your computer  and pair up mobile with computer. Once the pairing is done, videos played on YouTube Remote app will be streamed on to your computer. Access your mobile using any web browser – send/receive SMS, view photos/call logs, etc. Want to control your mobile phone using a computer? Install AirDroid app on your phone and start controlling your phone using computer browser – send and receive messages, view call logs, play music, upload/download files, edit contacts and many more. At times it’s lot of fun to access mobile using a big screen devices like laptops. Launch a webpage on your mobile browser using your computer With Google Chrome to Phone installed on your computer and mobile, you can send links and other information from Chrome browser to your Android device. With a click on Chrome browser, the current webpage of Chrome browser will be automatically launched on Android device. This is very handy when you want to send links, send driving direction to mobile using Google Maps and launch phone dialer with number selected on webpage. Install Apps on mobile using computer To install apps on your smartphone you really don’t need to touch it. Open any web browser, sing in to Google Play with your Google id that is associated with smartphone and start installing apps on to your phone right from the browser. As you browse apps on Google Play store, you find Install button and all you need to do is to just click Install. Google will automatically installs app on your mobile within few seconds.

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  • Ubuntu 12.04 on MAC Mini G4

    - by Buford Speed
    I have a MAC Mini G4. I would like to install Ubuntu on it. I have looked at this Q&A Mac G4 with no OS: can Ubuntu be used?, and I have a question. Is it worth the hassle to install Ubuntu, or should I keep MAC OS. The unit has MAC OS 10.4 (Tiger). It is used for normal day to day operations, word processing, spreadsheets, browsing, and keeping track of finances. I'd like to install Ubuntu if I can. So is it possible?

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  • How can I run a speed test for Netflix and Hulu?

    - by Brennan Stehling
    Since the FCC rules were struck down I have noticed that Netflix and Hulu often stall on my Time Warner home connection. I've heard others are experiencing the same delays. I use Speedtest.net regularly from my computer and phone to check my connection and typically at home I get 10 to 15Mbps and occasionally higher. Currently it is around 10Mbps yet Hulu is stalling. Is there a way to specifically test my speeds for streaming Netflix and Hulu?

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  • Shotwell issues in 11.10

    - by John Speed
    I had used Shotwell happily previously then updated to Natty last week. Despite Shotwell showing on the tool bar on screen, when clicked, nothing happened, and it ignored my SD card when loaded. I read all sorts of remedies and tried everything to no avail. When I next turned on the laptop, Ocelot was available so with nothing to loose, I upgraded again. Still no Shotwell. Tried all the new fixes and now atleast I have the icon pictures but nothing behind it. When I ran the command to load the log file, Shotwell loaded and all my photos are present. Exited programme, and now nothing. Can anyone tell me where I have gone wrong please.

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  • Shotwell not available in 11.10

    - by John Speed
    I had used Shotwell happily previously then updated to Natty last week. Despite Shotwell showing on the tool bar on screen, when clicked, nothing happened, and it ignored my SD card when loaded. I read all sorts of remedies and tried everything to no avail. When I next turned on the laptop, Ocelot was available so with nothing to loose, I upgraded again. Still no Shotwell. Tried all the new fixes and now atleast I have the icon pictures but nothing behind it. When I ran the command to load the log file, Shotwell loaded and all my photos are present. Exited programme, and now nothing. Can anyone tell me where I have gone wrong please.

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  • Computer makes odd noise. Replace almost every component. Computer still makes odd noise.

    - by ShimmerGeek
    My PC was getting pretty old, 5 years or so, and over the course of it's life I replaced the graphics card, HDD and a couple of sticks of RAM; but the PSU, processor, motherboard, fans etc. were all original. A few weeks ago, I started hearing an odd noise. I struggle to describe it, it sounded sortof like the 'click of death' you hear when a HDD may fail, but not quite... (And it was far less irregular) Also, I was sure I heard it once or twice a minute or two after I shut down the PC. This was going on very irregularly for a couple weeks. Some days I would hear no noise at all, others I would hear it often, maybe once every 30 seconds or so. I could find no common denominator - i.e. it did not happen more during gaming or any other intensive use. Anyway, I need my PC to sit some classes over the summer, so I put it in for them to run a HDD stress test and to replace a bunch of the components. I ended up replacing almost everything - the only elements I still have are my blu-ray drive and graphics card. They said when they started to run the HDD stress test it failed instantly (They started the test and it immediately said 'Test Complete' so they assumed it was at fault, and put a new HDD in since I was still under warranty with them.) I took it home a few hours ago, and I am still hearing the noise!!! Do you guys have any theories? I'm getting a little worried, I can't afford for my PC to suddenly fail during the next month - I have a lot of coursework to do. Any thoughts? Is it possible it could be the fan on the graphics card? I'm confused because it's so irregular. Any help would be much appreciated.

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  • How can I disable the "Do you want to allow this website to open a program on your computer?" warnin

    - by serialhobbyist
    I've been playing with new URL monikers in Windows for a utility I'm working on. When I run the new URL from Start Run, it just runs. If I send the URL to myself via Notes or enter it into the IE address bar, I get a window which says: "Do you want to allow this website to open a program on your computer?" Program: UrlMonikerTest1 Address: urltest://ticket?param1=42&param2=Derf [CheckBox] Always ask before opening this type of address [Button] Allow [Button] Cancel Allowing web content to open a program can be useful, but it can potentially harm your computer. Do not allow it unless you trust the source of the content. What's the risk? Given that the utility will only run on internal machines to which it will be deployed using SCCM and to which I can apply Group Policy, can I disable this message for this application/URL moniker alone? The clients are currently XP. They will be Win7 at some point. We don't have to consider Vista.

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  • How can I connect any USB device to my computer wirelessly?

    - by daviesgeek
    I am trying to connect the Canon 550D wirelessly to my computer so that I can control it from at a distance. It can connect normally via a USB cable, so I was wondering if there was a way to plug a dongle into the computer, and a dongle into the camera so the two can connect. I'm basically looking for a really long USB cord that will work over long distances (200+ feet). Another important factor is that I really would prefer not having use a power cord, rather just plugging in a dongle, as it will make the setup more mobile. Does anything like this exist? (I know that Cables Unlimited had something like what I wanted, but they went out of business last year)

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  • How can I fix a computer that blue screens before Windows starts?

    - by Julio
    I have a Dell Inspiron running Windows 7 that keeps getting blue screens of death. At first, the computer slowed down so much it was unusable. After some time, it wouldn't even load Windows anymore; the machine just started going straight to a BSOD after the starting Windows logo. I have tried loading the reset disc, but it just takes me to a loading lobby and never advances. I don't need the files on the computer, but I do need the machine for school. What can I do?

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  • Why does my computer slow down after being on too long?

    - by RoboShop
    I'm sure everyone has experienced it - if you leave a computer on too long, every once in a while, it needs a fresh reboot. I have a laptop, and I only hibernate it, but every week or two, I'm going to need to restart otherwise it will just slow down (usually when windows update makes me restart) I was wondering though... why? What are some of the things that occur that eat up memory that can seemingly not be freed unless I reboot the OS. In addition, are there any programs I can get that can free up this memory and keep the computer alive for longer? Preferably for windows 7.

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  • How can I get a scheduled task to run for a user regardless of which computer the user is logged onto?

    - by Ernst
    I've got a scheduled task that needs to run for a user at a specific time. However, the user sometimes logs onto one machine, the next day onto another, then next week onto yet another. At some pint during the day, the user might have to log onto another machine. How do I get the scheduled task to run regardless of which computer the user is using? I could of course create the task on all computers, but that seems a bit overkill. Running a script on log on (or a group policy) to create the task doesn't seem a good method either. Any ideas? Basically I want the scheduled task to be defined on the user instead of on the computer. If in the end I need to choose between the two options above, which is best?

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  • Can I use two of the same type of PCI Sound Cards in one computer?

    - by Eamon
    I recently purchased two Rocketfish 5.1 PCI Sound Cards from Best Buy. These are going to be used for audio production and radio broadcasting, so one card can handle live audio, the other can handle cue audio. After installing both cards, I get strange noises from the broadcasting program, and then the computer locks up solid. I have to hard restart to get it back up. This only happens when the two audio cards are installed on the computer. I have tried switching them around to different PCI slots, with the same result.

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  • Best way to find the computer a user last logged on from?

    - by Garrett
    I am hoping that somewhere in Active Directory the "last logged on from [computer]" is written/stored, or there is a log I can parse out? The purpose of wanting to know the last PC logged on from is for offering remote support over the network - our users move around pretty infrequently, but I'd like to know that whatever I'm consulting was updating that morning (when they logged in, presumably) at minimum. I'm also considering login scripts that write the user and computer names to a known location I can reference, but some of our users don't like to logout for 15 days at a time. If there is an elegant solution that uses login scripts, definitely mention it - but if it happens to work for merely unlocking the station, that would be even better!

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