From: Con Kolivas <kernel@kolivas.org>
To: Andrew Morton <akpm@osdl.org>
Cc: warudkar@vsnl.net, linux-kernel@vger.kernel.org
Subject: Re: 2.6.0-test4-mm1 - kswap hogs cpu OO takes ages to start!
Date: Thu, 28 Aug 2003 12:11:43 +1000 [thread overview]
Message-ID: <200308281211.43945.kernel@kolivas.org> (raw)
In-Reply-To: <20030827125310.15ebf8f9.akpm@osdl.org>
On Thu, 28 Aug 2003 05:53, Andrew Morton wrote:
> Con Kolivas <kernel@kolivas.org> wrote:
> > On Thu, 28 Aug 2003 07:38, warudkar@vsnl.net wrote:
> > > Trying out 2.6.0-test4-mm1. Inside KDE, I start OpenOffice.org,
> > > Rational Rose and Konsole at a time. All of these take extremely long
> > > time to startup. (approx > 5 minutes). Kswapd hogs the CPU all the
> > > time. X becomes unusable till all of them startup, although I can
> > > telnet and run top. Same thing run under 2.4.18 starts up in 3 minutes,
> > > X stays usable and kswapd never take more than 2% CPU.
> >
> > Yes I can reproduce this with a memory heavy load as well on low memory
> > (linking at the end of a big kernel compile is standard problem).
>
> It could be that recent changes to page reclaim which improve I/O
> scheduling have exacerbated this.
>
> Does this make a difference?
Tried it. No change.
kswapd0 can hit 90% cpu at times unless the swappiness is increased.
Con
next prev parent reply other threads:[~2003-08-28 2:04 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-27 21:38 2.6.0-test4-mm1 - kswap hogs cpu OO takes ages to start! warudkar
2003-08-27 11:18 ` William Lee Irwin III
2003-08-27 11:30 ` William Lee Irwin III
2003-08-27 11:37 ` Con Kolivas
2003-08-27 19:53 ` Andrew Morton
2003-08-28 2:11 ` Con Kolivas [this message]
2003-08-31 16:06 ` Rik van Riel
2003-08-28 3:23 ` Tariq Firoz
2003-08-27 12:17 ` Jose Luis Domingo Lopez
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