From: Dan Noe <dpn@isomerica.net>
To: Andreas Grimm <agrimm61@gmail.com>
Cc: Johannes Weiner <hannes@saeurebad.de>, linux-kernel@vger.kernel.org
Subject: Re: VM - a plenty of inactive memory
Date: Wed, 09 Apr 2008 10:15:48 -0400 [thread overview]
Message-ID: <47FCCF94.3000103@isomerica.net> (raw)
In-Reply-To: <cf40c6a90804090657j7e76a84foeaf3c1c02d2a7b73@mail.gmail.com>
Andreas Grimm wrote:
> i know this. But why the kernel locks that memory for a so long time
> (2 days now)? Is there a way to enforce the reclaiming? And how can i
> find out, which process owns that memory. The problem is, that i can't
> accept, that the free memory fell down to 50MB, when i have 24GB in
> the nirvana. The system was recently very close to the awkward
> situation to swap to disk, and i bet it will do so in the next few
> days, because it happened before. Unintelligible, if one got that much
> ram.
Have you investigated the sys.vm.swappiness tunable? It allows you to
control how readily the kernel swaps out unused mapped memory. This
seems to be relevant to your issue.
See http://lwn.net/Articles/83588/
Cheers,
Dan
--
/--------------- - - - - - -
| Daniel Noe
| http://isomerica.net/~dpn/
next prev parent reply other threads:[~2008-04-09 14:17 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-09 9:13 VM - a plenty of inactive memory Andreas Grimm
2008-04-09 13:10 ` Johannes Weiner
2008-04-09 13:57 ` Andreas Grimm
2008-04-09 14:15 ` Dan Noe [this message]
2008-04-09 15:01 ` KOSAKI Motohiro
2008-04-09 16:28 ` Andreas Grimm
2008-04-09 18:08 ` Andreas Grimm
2008-04-09 19:56 ` Johannes Weiner
2008-04-09 20:05 ` Andreas Grimm
2008-04-11 17:55 ` Peter Zijlstra
2008-04-11 13:13 ` Andreas Grimm
2008-04-11 14:34 ` linux-os (Dick Johnson)
[not found] <fa.+S2mzTenrJ0RtdxGRDJkwIoNteA@ifi.uio.no>
[not found] ` <fa.TNkasVGEvLf8IqduH2+YXFyYR1w@ifi.uio.no>
[not found] ` <fa.R/QDJx+PTjNDKcqKW25clMhQ6tg@ifi.uio.no>
2008-04-09 14:32 ` Robert Hancock
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