From: Andrew Morton <akpm@digeo.com>
To: William Lee Irwin III <wli@holomorphy.com>
Cc: Dave Hansen <haveblue@us.ibm.com>,
colpatch@us.ibm.com, "Martin J. Bligh" <mbligh@aracnet.com>,
Michael Hohnbaum <hohnbaum@us.ibm.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] per-zone^Wnode kswapd process
Date: Fri, 13 Sep 2002 17:02:56 -0700 [thread overview]
Message-ID: <3D827CB0.D227D0E9@digeo.com> (raw)
In-Reply-To: 20020913234653.GF3530@holomorphy.com
William Lee Irwin III wrote:
>
> On Fri, Sep 13, 2002 at 03:52:21PM -0700, Dave Hansen wrote:
> > Here's a per-node kswapd. It's actually per-pg_data_t, but I guess that
> > they're equivalent. Matt is going to follow up his topology API with
> > something to bind these to their respective nodes.
>
> >From 64 parallel tiobench 64's (higher counts livelock in fork() etc.):
>
> 38 root 15 0 0 0 0 RW 23.0 0.0 1:11 kswapd0
> 4779 wli 22 0 4460 3588 1648 R 17.9 0.0 0:16 top
>
> ...
>
> 4779 wli 25 0 4460 3592 1648 R 14.1 0.0 0:27 top
> 38 root 15 0 0 0 0 DW 3.5 0.0 1:31 kswapd0
>
Why do I see only one kswapd here?
Are you claiming an overall 4x improvement, or what?
I'll add some instrumentation whch tells us how many pages
kswapd is reclaiming versus direct reclaim.
next prev parent reply other threads:[~2002-09-13 23:58 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-13 3:33 [PATCH] per-zone kswapd process Dave Hansen
2002-09-13 4:06 ` Andrew Morton
2002-09-13 4:59 ` William Lee Irwin III
2002-09-13 5:10 ` Martin J. Bligh
[not found] ` <3D8232DE.9090000@us.ibm.com>
[not found] ` <3D823702.8E29AB4F@digeo.com>
[not found] ` <3D8251D6.3060704@us.ibm.com>
[not found] ` <3D82566B.EB2939D5@digeo.com>
2002-09-13 22:52 ` [PATCH] per-zone^Wnode " Dave Hansen
2002-09-13 23:24 ` Matthew Dobson
2002-09-13 23:29 ` Matthew Dobson
2002-09-13 23:46 ` William Lee Irwin III
2002-09-14 0:02 ` Andrew Morton [this message]
2002-09-14 0:12 ` William Lee Irwin III
2002-09-14 1:19 ` Andrew Morton
2002-09-13 5:46 ` [PATCH] per-zone " Andrew Morton
2002-09-13 5:38 ` Martin J. Bligh
2002-09-13 6:03 ` Andrew Morton
2002-09-13 13:05 ` Alan Cox
2002-09-13 21:30 ` William Lee Irwin III
2002-09-18 16:07 ` [PATCH] recognize MAP_LOCKED in mmap() call Hubertus Franke
2002-09-18 16:29 ` Andrew Morton
2002-09-16 5:44 ` [PATCH] per-zone kswapd process Daniel Phillips
2002-09-16 7:46 ` William Lee Irwin III
2002-09-16 15:12 ` Rik van Riel
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