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Re: [OT]What is "buffers" and "cached" memory in Linux system box?

by Joost (Canon)
on Sep 19, 2008 at 19:11 UTC ( #712586=note: print w/replies, xml ) Need Help??


in reply to [OT]What is "buffers" and "cached" memory in Linux system box?

the kernal can take back cache memory whenever it wants to, but not (all of the) buffers - buffers are needed for inter-process communication.

this article explains the fundamentals

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Re^2: [OT]What is "buffers" and "cached" memory in Linux system box?
by sunshine_august (Scribe) on Sep 20, 2008 at 05:07 UTC

    From my test, the kernel take back all of the "buffers" mem, but leave some for the "cached".

    My box:
    Linux localhost.localdomain 2.6.22.9 #1 SMP Wed Sep 17 10:54:46 CST 2008 x86_64 x86_64 x86_64 GNU/Linux
    And the program I run mainly deal with the network data through loop-back address.

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[LanX]: no idea ... ask py monks! ;-p
[tye]: it turns out that this can be caused by almost anything going wrong. If you want to know what caused the problem, you have to try to load each app by-hand to see what problems it is having, because none of those will be logged.
[tye]: No, I write more Perl than py at work. But I have to deal with plenty of py things.
[tye]: py monks would just be offended.
[Corion]: ;)
[Corion]: Hi tye btw ;)
[Corion]: I found plenty of not chatty enough logs with Perl too ... I'm slowly coming to appreciate Log::Log4perl resp. our homegrown alternative
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