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• Deleting large no of files on linux eats up CPU

  - by Sanjay

  I generate more than 50GB of cache files on my RHEL server (and typical file size is 200kb so no of files is huge). When I try to delete these files it takes 8-10 hours. However, the bigger issue is that the system load goes to critical for these 8-10 hours. Is there anyway where I can keep the system load under control during the deletion. I tried using nice -n19 rm -rf * but that doesn't help in system load.

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• Odd Suhosin memory alerts

  - by slice

  I am getting a lot of odd suhosin alerts in my syslog. The following are example entries: Jun 9 08:46:11 suhosin[9764]: ALERT - script tried to increase memory_limit to 2145386496 bytes which is above the allowed value (attacker '157.55.39.180', file '/var/www/site/index.php') Jun 9 08:46:11 suhosin[9744]: ALERT - script tried to increase memory_limit to 2145386496 bytes which is above the allowed value (attacker '109.74.2.136', file '/var/www/site/test.php') Jun 9 08:46:13 suhosin[9779]: ALERT - script tried to increase memory_limit to 0 bytes which is above the allowed value (attacker 'REMOTE_ADDR not set', file 'unknown') Jun 9 08:46:13 suhosin[9779]: ALERT - script tried to increase memory_limit to 2145386496 bytes which is above the allowed value (attacker 'REMOTE_ADDR not set', file 'unknown') What is happening here? Why 0 bytes or 2145386496 bytes (2046 GB!!??)? Why does it sometimes state the attacker and the requested script and sometimes state 'REMOTE_ADDR not set' and file 'unknown'? How do I proceed to figure this out?

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• Track PC usage (keys pressed, hours used etc)

  - by yes123

  I heard once there was a software that could log your activity (form a developer point of view) like: How many key did you press How many hours you moved the mouse This software had cloud saving so you could install and use on all your pc/notebook. It would be cool if by 5 years I could know how many lines of code/text I have wrote or how many time I have worked Please note I don't want a keylogger (I just want to know my activity over time)

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• Suggested benchmark for testing CPU footprint of antivirus software

  - by Alex Chernavsky

  Our organization is currently running Symantec Corporate Antivirus, which is rumored to be a big resource hog. I know that we do have a lot of older machines that are running slow. Our PCs are all running Windows XP Pro and are used only for business applications (mostly Microsoft Office), e-mail, and web surfing. They're not used for gaming (one would hope not, anyway). I'd like to take one of the old PCs and do a speed benchmark test while it's running Symantec AV, then another test with no antivirus, and a third test with ESET NOD32. As I said, I don't care much about graphics performance. What would be an appropriate benchmarking program program to use? Freeware is best, of course. Thank you for considering my question.

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• how can i use apache log files to recreate usage scenario

  - by daigorocub

  Recently i installed a website that had too many requests and it was too slow. Many improvements have been made to the web site code and we've also bought a new server. I want to test the new server with exactly the same requests that made the old server slow. After that, i will double the requests, make new tests and so on. These requests are logged in the apache log files. So, I can parse those files and make some kind of script to make the same requests. Of course, in this case, the requests will be made only by my computer against the server, but hey, better than nothing. Questions: - is there some app that does this already? - would you use wget? ab? python script? Thanks!

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• Memory Usage of SQL Server

  - by Ashish

  SQL Server instance on my server is using almost full memory available in my Physical Server. Say if i am having 8GB of RAM than SQL Server is using 7.8 GB of RAM from system. I also have read articles and also read many similar questions regarding same on this forum and i understand that memory is reserved and it is using memory. But i have 2 same servers and 2 SQL Servers, why this is happening on a single SQL Instance not on other. Also when i run DBCC MemoryStatus than it is showing up... VM Reserved 8282008 VM Committed 537936 so from this we know that SQL reserved whole 8GB memory, but why this VM Committed keeps increasing. What i understand is VM Committed is: VM Committed: This value shows the overall amount of VAS that SQL Server has committed. VAS that is committed has been associated with physical memory. So this is the memory SQL Server has committed (from this i understand that physical memory actually SQL Server is using at instance). So like to know the reason behind this ever increasing VM Committed memory on my server and not on another. Thanks in Advance.

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• Disk usage treemap software for headless Linux

  - by CyberShadow

  There are some programs which can display used disk space using a treemap, such as WinDirStat for Windows and KDirStat for KDE/Linux: I'm looking for something similar, but for a headless Linux box. (E.g. run console data collection program on the server, then load the file in a graphical program in a GUI environment.) Alternatively, what are other good ways to get a structured used disk space representation, with just SSH access?

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• Linux servers vs Windows IIS sense of usage "free" solutions

  - by Rob

  I wonder what is the sense of using "free" open source solutions for serious webstie applications? Crawled and read many testing of servers performance and there is one conclusion: IIS seems to be the best choice for high load applicatiom. I mean cost effective. Especially this concers to Nginx PLUS and LiteSpeed Users where subscriptions paid for e.g. LoadBalacer and extra support cost a lot in fact. I'm asking then where it's "free" then or "cheap" in this case? Assuming even little higher cost of dedicated servers with Windows still seems like Windows looks cheaper. At it's basic setup Windows 2012 with IIS offer much more than std LAMP, or other NGINX config.... Maybe am I missing sth ? I mean only general case for someone who did not already started his app. I know exactly that the cheapest solution is the one someone is skilled. Has anyone done already such real costs calculation for example scenarios?

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• Is there a list of Windows services that can be turned off to save resources?

  - by scunliffe

  Every time I open up my task manager and look at the tasks running, it appears to me that there has got to be a bunch of junk running in there that I don't want or need and would be better off turning off (e.g. set the service to manual vs. automatic) In particular I'm running Windows XP, but I'd be interested in services for any version. e.g. Service: ThinkPad PM Service What is it: The ibmpmsvc.exe process is installed by default on IBM Notebook computers. It allows various functions of your IBM notebook to be controlled using the blue Fn keys. If you use the blue Fn keys on your Notebook, you should leave this process running. Otherwise, if it is causing problems for your system you should terminate the ibmpmsvc.exe process. (source) Thus for me, (having never used, or intending to use these buttons) - I want to turn it off. There's lots that just seem painfully unnecessary to me... I'm just not sure which ones I can "safely" stop/disable without issues... "Alerter", "ClipBook", "Messenger", "Telnet", "ATI Hotkey Poller", "Office Source Engine", etc. I'd appreciate any info on services that are truly unnecessary, or only useful to certain people/types of users.

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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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• Top cpu% analyis

  - by user111196

  I would like the know in what cpus % can be considered in save range and also load average? Which indication will give signal something is wrong with the server? top - 22:55:51 up 3 days, 6:39, 1 user, load average: 0.53, 0.43, 0.37 Tasks: 229 total, 2 running, 227 sleeping, 0 stopped, 0 zombie Cpu0 : 16.2%us, 0.7%sy, 0.0%ni, 82.8%id, 0.0%wa, 0.0%hi, 0.3%si, 0.0%st Cpu1 : 10.5%us, 0.7%sy, 0.0%ni, 88.5%id, 0.0%wa, 0.0%hi, 0.3%si, 0.0%st Cpu2 : 9.0%us, 0.0%sy, 0.0%ni, 91.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu3 : 0.3%us, 0.3%sy, 0.0%ni, 99.4%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu4 : 1.0%us, 0.0%sy, 0.0%ni, 99.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu5 : 44.8%us, 2.6%sy, 0.0%ni, 37.0%id, 0.0%wa, 9.4%hi, 6.2%si, 0.0%st Cpu6 : 3.0%us, 0.0%sy, 0.0%ni, 96.7%id, 0.0%wa, 0.0%hi, 0.4%si, 0.0%st Cpu7 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 16468596k total, 2423908k used, 14044688k free, 200172k buffers

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• Reduce "Metafile" memory usage?

  - by Jay Conrod

  My work computer (Windows 7 64-bit) spends a lot of time swapping memory when I switch between programs. This surprises me since I have 4 GB of RAM, and the programs I use aren't particularly RAM hungry (Outlook, Emacs, p4win, Firefox, various build tools). I downloaded RAMMap, and it shows over a gigabyte of memory used by "Metafile". From the Sysinternals blog: Metafile is part of the system cache and consists of NTFS metadata. NTFS metadata includes the MFT as well as the other various NTFS metadata files. ... In the MFT each file attribute record takes 1k and each file has at least one attribute record. Add to this the other NTFS metadata files and you can see why the Metafile category can grow quite large on servers with lots of files. So I understand what the "Metafile" data is... I work on large builds comprising hundreds of thousands of files (none are that big, but they add up to several gigabytes). My question is how can I reduce the amount of memory used by "Metafile"? I'm not actively using all those files at once, so why does Windows need to keep info in RAM? Restarting my machine every time I sync a new build is really annoying.

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• IIS 7 UI: Like or Don't Like it?

  - by Vivek

  I have been using IIS 7 / 7.5 for quite sometime now. But often I come across situation where one particular option which I remember quite well in IIS 6 seems to be missing or couldn't find in IIS 7. Do you find yourself lost when using IIS 7 UI?

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• Weblogic Threads Usage

  - by Hila

  I have an application deployed on WebLogic 10.3, which exhibits a strange behavior. I am running a constant (not too high) load on my application (20 concurrent users, running a light activity). The response time is reasonable (well below 100ms after the application stabilizes) Memory consumption seems fine (My application creates a lot of short-living objects, but they are garbaged collected so the overall memory consumption stays under 500 mb). Threads stats seem healthy as well: And yet, after I leave my test running for a while, more and more execute threads ("[ACTIVE] ExecuteThread: '3' for queue: 'weblogic.kernel.Default (self-tuning)'") are created, until eventually the application crashes: This test hasn't been running for a long time (All the new threads that you don't see in the first screenshot were created while I was writing this question), and I've seen much more threads being created. Any idea why these threads are being created?

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• High memory utilization by sqlservr.exe process

  - by abdul samad

  Sub:High memory utilization by sqlservr.exe process. When I look into task manager --processes or by using perfmon memory counters(Sqlserver:memory manager:Target server memory and Total server memory) I am getting high memory utilization by sqlservr.exe process nearly 8 GB (Target server memory counter) and 7.95 GB (Total server memory). and when I restart the MSSQLSERVER service it again shoots up to the same size. I am getting this issue quite frequently. Please help me out in identifying why sql server is using so much memory and how to find out what query , stored procedure etc is making sql server use that much memory. * I am not using any triggers or cursors in my code. Thanks

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• CPU cores and workers / maxservers

  - by user80666

  I'm trying to optimize my apache and nginx installations and have been looking for information on how to setup correct number or min/max servers and connections in Apache and worker processes in Nginx. I was wondering whether or not Apache and Nginx take advantage of multy core processors and how to set configuration in Apache and Nginx? For example, lets say I have a 4 core processor, should I set workers to 4 in nginx? what should I set spare server in apache to?

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• Batch Script With SQLCMD Usage

  - by user52128

  Hi All I am Writing a Batch Script Which has to read a set of SQL Files which exists in a Folder then Execute Them Using SQLCMD utiliy. When I am Trying to execute it does not create any output file. I am not sure where I am wrong and I am not sure how to debug the script. Can someone help me out with script? @echo off FOR %F IN (C:\SQLCMD\*.SQL) DO sqlcmd -S LENOVO-C00 -U yam -P yam!@ -i %F -o C:\SEL.txt -p -b IF NOT [%ERRORLEVEL%] ==[0] goto get_Error :Success echo Finished Succesffuly exit /B 0 goto end :get_error echo step Failed exit /B 40 :end

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• power equation for RAM

  - by kashyapa

  How is the dynamic power consumption of memory determined . Can anybody give a canonical equation for power consumption of the RAM. What are the parameters involved in determing the dynamic power consumption of RAM ? Thanks in advance

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• restore -A usage

  - by Martin v. Löwis

  I have created a number of dump files using Linux dump(8), using the -A option to get a table of contents on disk (the backups are on tape). Now I'm trying to look into these archive files, using restore -i -A <archive>` However, this insists on asking what tape to use, and complains if I say none. What am I doing incorrectly? I was hoping that I can use these archive index files without having to insert the tape to use.

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• inotifywait usage and exclude

  - by user58542

  I want to monitor special path to any event of create or modified files recursively in it via inotifywait but i cant know what's problem. i have some folder that i want to exclude thame. watchpath -> folder1 -> file1 -> ingnorefile1 [IG] -> ignorefolder1 [IG] i have problem to exclude them. inotifywait -mr --exclude '(ignorefolder1|folder1\/ingnorefile1)' -e modify -e create -e delete . | while read date time dir file; do what is correct regular expression ?

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• Aircrack-ng Usage on Windows (XP) -- Needs clear steps

  - by Alvin

  I've found that Aircrack-ng is very powerful tool for wireless hacking. But it is a bit complicated to use (even with its documentation). Also, when I run the GUI, it needs to add a "capture file". What is that? Additionally, it says Windows version is weaker than the Linux version. So how can I get it to run like a Linux version? What are some step-by-step instructions (to use on Windows XP)?

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• The cache is getting at full level so fast

  - by CompilingCyborg

  Please, the memory and the cache are getting to the full level quite quickly under my linux mint 9 - isadora system. I used Ubuntu and Debian before, and it was not causing this issue at all. At the current time i typing the following command frequently to empty the cache "echo 3 /proc/sys/vm/drop_caches". Please any way around this? or do you know what's going wrong? | I am only programming on this machine; no graphics, no games nothing. Thanks in advance for your help!

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• average temperature of CPU

  - by lego 69

  I downloaded the program named speedFan(for measuring the temperature of the hardware), and I have parameters like these GPU: 60C HDO: 38C Temp1: 50C Core 0: 44C Core 1: 44C Core: 59C Ambient: 0C I know that it shows me temperature of the different parts of my hardware, but I have no idea which ones, can You please explain it and also, is it something wrong with my laptop (because temperature of GPU is 60C) thanks in advance

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• Shell script fro daily disk usage report

  - by Master

  I am doing backups on my local drives. The drives are mounted in /media folder. Now i want to run cron job daily which will tell in table format how much disk is used by folder and how much free space is left on drive It would be good if i can insert that info in database and i can see that info use webpage on locahost ubuntu 10

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• iTunes memory usage

  - by Jordan S. Jones

  Why does iTunes use upwards of 70 megs of ram when it is minimized to my system tray playing music? -- Update -- I understand that iTunes is a resource hog :) What I'm trying to find out, is what part of iTunes is using all that ram. Is it the music library? If I have a smaller music library, will it use less ram? Is it loading all the Album Artwork into ram for some dumb reason? Additionally, is there any recommendations on what someone could do to reduce the amount of ram it is using?

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