From: Nick Piggin <nickpiggin@yahoo.com.au>
To: markw@osdl.org
Cc: akpm@osdl.org, linux-kernel@vger.kernel.org, mingo@elte.hu
Subject: Re: 2.6.5-mm5
Date: Fri, 16 Apr 2004 11:57:04 +1000 [thread overview]
Message-ID: <407F3D70.4090704@yahoo.com.au> (raw)
In-Reply-To: <200404151530.i3FFUI226872@mail.osdl.org>
markw@osdl.org wrote:
> I have more results with DBT-2 on my 4-way Xeon system:
> http://developer.osdl.org/markw/fs/dbt2_project_results.html
>
> It doesn't look like the latest cpu scheduler work is helping this
> workload. I've also made sure that the database was set to use fsync
> instead of fdatasync so you can see if those fsync speedup patches are
> offering anything with this workload too.
>
> ext2 ext3
> 2.6.5-mm5 2165 1933
> 2.6.5-mm4 2180
> 2.6.5-mm3 2165 1930
> 2.6.5 2385
>
> Mark
>
Hmm, well the sched-less-idle patch is in mm5, which brought
2.6.5-rc3-mm4 to 2320 on ext2.
The only other significant scheduler changes since that kernel
are in -mm5.
+sched_less_idle
+sched_balance_context
So either sched_balance_context is causing a regression that
counters sched_less_idle, or maybe it isn't a scheduler problem?
next prev parent reply other threads:[~2004-04-16 1:57 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-13 5:17 2.6.5-mm5 Andrew Morton
2004-04-13 7:38 ` 2.6.5-mm5 Kurt Fitzner
2004-04-13 7:56 ` 2.6.5-mm5 Nick Piggin
2004-04-13 8:07 ` 2.6.5-mm5 devpts filesystem doesn't work Helge Hafting
2004-04-13 8:11 ` Andrew Morton
2004-04-13 8:36 ` Sean Neakums
2004-04-13 8:39 ` Andrew Morton
2004-04-13 9:19 ` Marc-Christian Petersen
2004-04-13 9:26 ` Andrew Morton
2004-04-14 12:38 ` Helge Hafting
2004-04-13 11:36 ` 2.6.5-mm5: no help text for S2IO_NAPI Adrian Bunk
2004-04-13 16:02 ` 2.6.5-mm5 (compile stats) John Cherry
2004-04-15 15:30 ` 2.6.5-mm5 markw
2004-04-15 19:42 ` 2.6.5-mm5 Andrew Morton
2004-04-16 14:51 ` 2.6.5-mm5 markw
2004-04-16 22:59 ` 2.6.5-mm5 Nick Piggin
2004-04-16 23:03 ` 2.6.5-mm5 markw
2004-04-18 9:20 ` 2.6.5-mm5 Nick Piggin
2004-04-19 14:53 ` 2.6.5-mm5 markw
2004-04-19 14:51 ` 2.6.5-mm5 markw
2004-04-16 1:57 ` Nick Piggin [this message]
2004-04-16 10:34 ` 2.6.5-mm5 Ingo Molnar
2004-04-16 14:52 ` 2.6.5-mm5 markw
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