Re: [PATCH] fix spurious OOM kills

From: Nick Piggin
Date: Tue Dec 14 2004 - 20:19:03 EST


On Tue, 2004-12-14 at 18:38 +0100, Andrea Arcangeli wrote:
> On Tue, Dec 14, 2004 at 05:04:29PM +0100, Martin MOKREJÅ wrote:
> > I see the machine a lot less responsive when it starts swapping
> > compared to 2.6.10-rc2-mm3. For example, just moving mouse between
> > windows takes some 10-12 seconds to fvwm2 to re-focus to another xterm
> > window.
>
> I don't know exactly what's the issue here, but the oom fixes we
> developed cannot change anything until you see the first printk in the
> logs (the printk tells the admin the machine reached oom).
>
> So slowdowns during paging can be discussed separately from the oom
> killer issues.

There was another reported slowdown for 2.6.10-rc3 in another
thread too. It is a bit odd because nothing much has changed
in the scanner.

Was there some swap-token (or can anyone think of any relevant)
changes recently?

Nick


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