From: "José Manuel Román Ramírez" <uzi@xerxes.conectiva.com.br>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Bug? in 2.4 memory management...
Date: Wed, 7 Mar 2001 12:33:36 +0100 [thread overview]
Message-ID: <01030712333600.03019@xerxes> (raw)
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!
--
"I consider Red Hat 7.0 to be basically unusable as a development platform"
Linus Torvalds
--
Jose Manuel Roman - Theuzifan
roman@wol.es - uzi@simauria.upv.es
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next reply other threads:[~2001-03-07 16:10 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-07 11:33 José Manuel Román Ramírez [this message]
2001-03-07 21:23 ` Marcelo Tosatti
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