From: cliff white <cliffw@osdl.org>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Recent Reaim results
Date: Tue, 9 Mar 2004 09:17:12 -0800 [thread overview]
Message-ID: <20040309091712.747522cb.cliffw@osdl.org> (raw)
In-Reply-To: <20040308144050.1fe5976a.akpm@osdl.org>
On Mon, 8 Mar 2004 14:40:50 -0800
Andrew Morton <akpm@osdl.org> wrote:
> cliff white <cliffw@osdl.org> wrote:
> >
> >
> > Test results from the OSDL reaim test.
> > The -mm kernels now appear to be scaling a bit nice.
> > I dunno why, but the 8-ways like -mm2 :)
>
> I think your'e playing with my mind.
It's not _me, it's those STP robots. :)
>
> > The is the 'database' load, a mixture of IO and CPU activity.
>
> What about file server load?
Also looking pretty okay on ext3, and sucking somewhat less
on the other filesystems.
I run filesystem compares on two-ways, so the
delta is not as big.
2-CPU-
linux-2.6.3 6055.26 0.0 ext3
2.6.4-rc1-mm2 6149.28 1.64 ext3
2.6.4-rc1 6004.18 -0.84 ext3
2.6.4-rc1-mm2 6061.28 0.1 jfs
2.6.4-rc2 5977.53 -1.36 jfs
2.6.4-rc1-mm2 6007.67 -0.83 reiserfs
2.6.4-rc1 5836.39 -3.83 reiserfs
2.6.4-rc1-mm2 5801.30 -4.44 xfs
2.6.4-rc1 5785.93 -4.71 xfs
----
>
> > 4-CPU ( all AS )
> > linux-2.6.3 5313.36 0.0
> > 2.6.4-rc1 5218.87 -1.78
> > 2.6.4-rc1-mm2 5391.00 1.46
>
> I spent a boring evening with the file server load on 4-way x86 with six
> disks. If I squinted at it hard enough I was able to discern a 1% slowdown
> due to O_DIRECT-vs-buffered-fix.patch, but it was pretty thin.
Gee, i told the STP robots to run the tests, and went out and had fun :)
We should talk, the robots would be your slaves, if you would but ask them.
>
> I didn't test the database load.
The db load mixes the IO with some compute stuff, it will always run faster
than the fserver load.
cliffw
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--
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prev parent reply other threads:[~2004-03-09 17:17 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-08 16:34 cliff white
2004-03-08 22:40 ` Andrew Morton
2004-03-09 17:17 ` cliff white [this message]
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