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  • what is pagecache page

    - by kumar
    /* * Each physical page in the system has a struct page associated with * it to keep track of whatever it is we are using the page for at the * moment. Note that we have no way to track which tasks are using * a page, though if it is a pagecache page, rmap structures can tell us * who is mapping it. */ include/linux/mm_types.h Here Please lemme know what is "pagecache page" means? Thanks!

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  • Convert .cshrc to .bashrc

    - by Bobby
    I am new to Linux and I am trying to compile some code that needs environment variables set first. The script is in cshrc, but whenever I try to run that code I get "if: badly formed number" errors. I want to run it in bash instead. Is there an easy way to convert cshrc to bashrc?

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  • Where to find __sync_add_and_fetch_8?

    - by Viet
    I got errors when trying to use __sync_add_and_fetch: test8.cpp:(.text+0x90e): undefined reference to `__sync_add_and_fetch_8' collect2: ld returned 1 exit status Please kindly advise how to rectify this. Specs: GCC/G++: 4.4.1 GNU/Linux 2.6.32 SMP i686 Many thanks!

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  • Qt as a true multi-platform dev-env

    - by ruralcoder
    Inspired by the maturity problems I am facing porting on Mono Mac & Linux. I am investigating the use of Qt as an alternative. I am curious to hear about your favorite Qt experiences, tips or lesser known but useful features you know of. Please, include only one experience per answer.

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  • Algorithms behind load-balancers?

    - by Vimvq1987
    I need to study about load-balancers, such as Network Load Balancing, Linux Virtual Server, HAProxy,...There're somethings under-the-hood I need to know: What algorithms/technologies are used in these load-balancers? Which is the most popular? most effective? I expect that these algorithms/technologies will not be too complicated. Are there some resources written about them? Thank you very much for your help.

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  • Shell script to import mysql dump file.

    - by Chandu
    Hi all, I'm new to mysql. My requirement is to import a sql dump into mysql using shell script for linux and this script should be called by java program for the restoration to take place automatically. Please advice me on this. Regards, Chandu.

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  • how do you monitor your lamp server?

    - by ajsie
    i wonder how one can monitor a lamp server (ubuntu) on production. are there any standard tools for this to watch the server performance/load in realtime via the browser? how mysql, linux, apache etc are doing... what is best practice regarding this? any tutorials would be great. thanks!

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  • Run VirtualBox in background, without a window

    - by Bashman
    Hi! I was wandering if it's possible to run an Ubuntu virtual machine using VirtualBox in background, I mean, without any window open. The idea is to conect via SSH to the linux host, that would be running in background. Have you ever done somenthing like this? Is it possible? Thanks!

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  • how to stop objcopy from padding sections

    - by Jah
    I'm using objcopy on bash (ubuntu linux) and im trying to copy 2 sections from an ELF file using the folowing commend: objcopy -j .section1 -j .section2 The problem is the objcopy is adding some padding between the sections. Is there a way (a flag?) that can stop objcopy from padding the sections? the sections are placed one after the other in the file so there is no need for any kind of padding....

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  • Consideration of cron job with respect to time

    - by charan
    Hi all, Is it possible to run my cron job according to the GMT where as, my server is cosidering IST time formats. In future is it possible to use different time zones...? To do this can anyone suggest what all steps i need to follow as i am working on linux. Thanks in advance....

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  • Monitor memory usage of child process

    - by Omry
    I have a Linux daemon that forks a few children and monitors them for crashes (restarting as needed). It will be great if the parent could monitor the memory usage of child processes - to detect memory leaks and restart child processes when the go beyond a certain size. How can I do this?

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  • I don't get coredump with all process

    - by Antoine
    Hello, I try to get a coredump, so i use : ulimit -c unlimited I run my program in background, and I kill it : kill -SEGV %1 But i just get : [1]+ Exit 1 ./Test And no coredumps are created. I did the same with other programs and it works, so why that didn't work with all ? Anybody can help me ? Thanks. (GNU/Linux, Debian 2.6.26)

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  • ADO.NET Data Services for MySQL

    - by Shalan
    Hey! I've searched high and low for this, and no luck. Is there a way that CRUD methods for a MySQL install (Linux box) be exposed via ADO.NET WCF Data Services? I would really love to leverage this in my WPF app :) Thank u!

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  • Converting jiffies to milli seconds

    - by EpsilonVector
    How do I manually convert jiffies to milliseconds and vice versa in Linux? I know kernel 2.6 has a function for this, but I'm working on 2.4 (homework) and though I looked at the code it uses lots of macro constants which I have no idea if they're defined in 2.4.

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