From: Marcelo Tosatti <marcelo@conectiva.com.br>
To: "José Manuel Román Ramírez" <uzi@xerxes.conectiva.com.br>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
Rik van Riel <riel@conectiva.com.br>,
linux-mm@kvack.org
Subject: Re: Bug? in 2.4 memory management...
Date: Wed, 7 Mar 2001 18:23:18 -0300 (BRT) [thread overview]
Message-ID: <Pine.LNX.4.21.0103071821510.867-100000@freak.distro.conectiva> (raw)
In-Reply-To: <01030712333600.03019@xerxes>
On Wed, 7 Mar 2001, Jose Manuel Roman Ramirez wrote:
> Hi,
> I think we've 'discovered' a bug regarding the kernel 2.4.2-ac11 (and maybe
> other) and the memory management. It seems that the cached memory sometimes
> is not freed as more memory is required.
>
> The system where we have detected the problem was an athlon 1ghz, 1.2gb of
> ram, and a swapfile of 2gb.
>
> When we run a program that requires/uses 1ghz of memory, and we kill it, all
> (or nearly all) the memory is used by the cache, as we load a hugue file. The
> next time we run the program, it seems like the kernel can't use the cached
> memory and the memory we need is taken from the swap. Note however that when
> we set a swap partition smaller than the memory required, let's say 128mb,
> the problem disappears as the cache memory is used instead the swap...
>
> So, what's wrong? Thanks in advance!
VM balance is not quite right.
Could you please try ac12 (which has a patch to tune the VM a bit) and
report results?
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prev parent reply other threads:[~2001-03-07 21:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-07 11:33 José Manuel Román Ramírez
2001-03-07 21:23 ` Marcelo Tosatti [this message]
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