From: Mark Frazer <mark@somanetworks.com>
To: Nicolas Pitre <nico@cam.org>
Cc: Daniel Phillips <phillips@bonn-fries.net>,
Anwar P <anwarp@mail.com>,
linux-kernel@vger.kernel.org
Subject: Re: What version of the kernel fixes these VM issues?
Date: Fri, 24 Aug 2001 14:48:42 -0400 [thread overview]
Message-ID: <20010824144842.A9414@somanetworks.com> (raw)
In-Reply-To: <Pine.LNX.4.33.0108241354520.25240-100000@xanadu.home> <Pine.LNX.4.33.0108241425190.25240-100000@xanadu.home>
In-Reply-To: <Pine.LNX.4.33.0108241425190.25240-100000@xanadu.home>; from nico@cam.org on Fri, Aug 24, 2001 at 02:25:55PM -0400
Hi Nicolas. You should run vmstat and watch the paging activity.
We've seen our ARM boards get driven to a standstill by paging when
they run out of RAM. We have no swap either. To make things worse,
our flash loads are compressed, so we burn all our CPU in decompression
when paging back in. If you have no swap, the only thing that can be
booted out are executable pages.
Kernel folk: do /proc/sys/vm/{pagecache,buffermem} still do anything?
Could Nicolas still limit the pagecache using these?
cheers
-mark
Nicolas Pitre <nico@cam.org> [01/08/24 14:38]:
>
>
> On Fri, 24 Aug 2001, Nicolas Pitre wrote:
>
> > I have a totally different setup but I can reproduce the same behavior on
> > the system I have here:
> >
> > ARM board with 32 MB RAM, no flash, NFS root.
>
> Sorry I meant no swap.
>
>
> Nicolas
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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next prev parent reply other threads:[~2001-08-24 18:48 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-08-24 8:47 What version of the kernel fixes these VM issues? Anwar P
2001-08-24 13:18 ` Daniel Phillips
2001-08-24 18:14 ` Nicolas Pitre
2001-08-24 18:25 ` Nicolas Pitre
2001-08-24 18:48 ` Mark Frazer [this message]
2001-08-24 19:53 ` Daniel Phillips
2001-08-24 19:56 ` Daniel Phillips
2001-08-24 20:12 ` Nicolas Pitre
2001-08-24 22:35 ` Daniel Phillips
2001-08-25 3:00 ` Nicolas Pitre
2001-08-25 4:31 ` Steve Kieu
2001-08-25 8:09 ` Russell King
2001-08-25 16:38 ` Daniel Phillips
2001-08-25 16:38 ` Daniel Phillips
2001-08-25 18:29 ` Nicolas Pitre
2001-08-25 18:51 ` Russell King
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