From: Andrew Morton <akpm@osdl.org>
To: maryedie@osdl.org
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: 2.6.4-mm2
Date: Mon, 22 Mar 2004 16:27:29 -0800 [thread overview]
Message-ID: <20040322162729.2f2ddbe4.akpm@osdl.org> (raw)
In-Reply-To: <1079975940.23641.580.camel@localhost>
Mary Edie Meredith <maryedie@osdl.org> wrote:
>
> [was "Poor DBT-3 pgsql 8way numbers on recent 2.6 mm kernels" on
> linux-mm]
>
> Andrew,
>
> This same patch (02) applied in STP (plm 2780) when run against
> dbt3-pgsql DSS workload displays the performance problem with the
> throughput numbers that I reported on linux-mm on our 8way systems,
> where the previous patch (plm 2777 -01) does not.
>
> Here is the data (patches applied to 2.6.5-rc1)
>
> PLM.....CPUs.Runid..Thruput Metric (bigger is better)
> 2777(01) 8 290298 138.22 (base )
> 2779(02) 8 290304 88.57 (-35.9%)
36% regression due to the CPU scheduler changes? ow.
And that machine is a PIII, so presumably the setting of CONFIG_SCHED_SMT
makes no difference.
>From a quick look at the material you have there it appears that this
workload also is very I/O bound. It's a little surprising that the CPU
scheduler could make so much difference.
next prev parent reply other threads:[~2004-03-23 0:25 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-15 1:28 2.6.4-mm2 Andrew Morton
2004-03-15 1:57 ` 2.6.4-mm2 Joshua Kwan
2004-03-15 6:08 ` 2.6.4-mm2 Sam Ravnborg
2004-03-15 9:32 ` [patch] 2.6.4-mm2: ALSA au88x0.c doesn't compile with gcc 2.95 Adrian Bunk
2004-03-15 9:36 ` 2.6.4-mm2: ALSA au88{1,2}0: multiply defined symbols Adrian Bunk
2004-03-15 18:54 ` 2.6.4-mm2 Sam Ravnborg
2004-03-20 22:50 ` 2.6.4-mm2 Olaf Hering
2004-03-15 19:18 ` 2.6.4-mm2 (compile stats) John Cherry
2004-03-15 20:57 ` 2.6.4-mm2 Thomas Schlichter
2004-03-15 21:08 ` 2.6.4-mm2 Thomas Schlichter
2004-03-15 21:18 ` 2.6.4-mm2 Andrew Morton
2004-03-15 21:18 ` 2.6.4-mm2 Jens Axboe
2004-03-15 22:40 ` 2.6.4-mm2 Thomas Schlichter
2004-03-15 22:11 ` 2.6.4-mm2 Jesse Barnes
2004-03-16 18:32 ` 2.6.4-mm2 Daniel McNeil
2004-03-16 21:58 ` 2.6.4-mm2 Chris Mason
2004-03-16 23:21 ` 2.6.4-mm2 Andrew Morton
2004-03-16 23:28 ` 2.6.4-mm2 Andrew Morton
2004-03-16 23:39 ` 2.6.4-mm2 Andrew Morton
2004-03-17 0:10 ` 2.6.4-mm2 Daniel McNeil
[not found] ` <1079485055.4181.1115.camel@watt.suse.com>
[not found] ` <1079487710.3100.22.camel@ibm-c.pdx.osdl.net>
[not found] ` <20040316180043.441e8150.akpm@osdl.org>
2004-03-17 20:11 ` 2.6.4-mm2 Chris Mason
2004-03-17 20:33 ` 2.6.4-mm2 Andrew Morton
2004-03-17 22:46 ` 2.6.4-mm2 Chris Mason
2004-03-17 23:09 ` 2.6.4-mm2 Andrew Morton
2004-03-17 23:27 ` 2.6.4-mm2 Chris Mason
2004-03-17 23:51 ` 2.6.4-mm2 Andrew Morton
2004-03-18 0:06 ` 2.6.4-mm2 Chris Mason
2004-03-18 0:13 ` 2.6.4-mm2 Andrew Morton
2004-03-18 0:31 ` 2.6.4-mm2 Chris Mason
2004-03-18 0:33 ` 2.6.4-mm2 Andrew Morton
2004-03-18 0:41 ` 2.6.4-mm2 Chris Mason
2004-03-18 1:15 ` 2.6.4-mm2 Daniel McNeil
2004-03-18 17:53 ` 2.6.4-mm2 Daniel McNeil
2004-03-18 18:47 ` 2.6.4-mm2 Chris Mason
2004-03-18 19:10 ` 2.6.4-mm2 Daniel McNeil
2004-03-19 16:49 ` 2.6.5-rc2-mm2 and direct_read_under Daniel McNeil
2004-03-19 17:05 ` 2.6.5-rc1-mm2 " Daniel McNeil
2004-03-21 14:36 ` Chris Mason
2004-03-22 18:10 ` 2.6.5-rc1-mm2 and direct_read_under and wb Daniel McNeil
2004-03-22 18:23 ` Chris Mason
2004-03-22 18:27 ` Chris Mason
2004-03-22 18:35 ` Chris Mason
2004-03-22 18:51 ` Daniel McNeil
2004-03-22 23:13 ` Andrew Morton
2004-03-23 0:51 ` Daniel McNeil
2004-03-23 9:25 ` Andrew Morton
2004-03-23 17:05 ` Daniel McNeil
2004-03-23 17:59 ` Andrew Morton
2004-03-23 21:38 ` Daniel McNeil
2004-03-23 21:47 ` Andrew Morton
2004-03-18 17:37 ` 2.6.4-mm2 markw
2004-03-18 18:06 ` 2.6.4-mm2 Andrew Morton
2004-03-18 18:48 ` 2.6.4-mm2 markw
2004-03-18 19:10 ` 2.6.4-mm2 Chris Mason
2004-03-18 19:27 ` 2.6.4-mm2 Jens Axboe
2004-03-18 23:38 ` 2.6.4-mm2 markw
2004-03-19 7:39 ` 2.6.4-mm2 Jens Axboe
2004-03-19 3:15 ` 2.6.4-mm2 Andrew Morton
2004-03-19 7:39 ` 2.6.4-mm2 Jens Axboe
2004-03-19 7:52 ` 2.6.4-mm2 Andrew Morton
2004-03-19 7:57 ` 2.6.4-mm2 Jens Axboe
2004-03-19 8:19 ` 2.6.4-mm2 Andrew Morton
2004-03-19 8:31 ` 2.6.4-mm2 Jens Axboe
2004-03-19 8:39 ` 2.6.4-mm2 Andrew Morton
2004-03-19 8:48 ` 2.6.4-mm2 Jens Axboe
2004-03-19 9:56 ` 2.6.4-mm2 Miquel van Smoorenburg
2004-03-19 10:00 ` 2.6.4-mm2 Jens Axboe
[not found] ` <20040318194150.4de65049.akpm@osdl.org>
2004-03-20 2:39 ` 2.6.4-mm2 Mark Wong
2004-03-20 2:47 ` 2.6.4-mm2 Mark Wong
2004-03-20 2:50 ` 2.6.4-mm2 Andrew Morton
2004-03-20 2:53 ` 2.6.4-mm2 Mark Wong
2004-03-20 3:52 ` 2.6.4-mm2 Nick Piggin
2004-03-20 4:14 ` 2.6.4-mm2 Andrew Morton
2004-03-20 4:24 ` 2.6.4-mm2 Nick Piggin
2004-03-20 4:26 ` 2.6.4-mm2 Nick Piggin
2004-03-20 21:17 ` 2.6.4-mm2 Martin J. Bligh
2004-03-22 17:19 ` 2.6.4-mm2 Mary Edie Meredith
2004-03-23 0:27 ` Andrew Morton [this message]
2004-03-23 19:21 ` 2.6.4-mm2 Mary Edie Meredith
2004-03-23 19:32 ` 2.6.4-mm2 Andrew Morton
2004-03-24 0:07 ` 2.6.4-mm2 Mary Edie Meredith
2004-03-30 21:30 ` 2.6.4-mm2 Mary Edie Meredith
[not found] <A6974D8E5F98D511BB910002A50A6647615F5E26@hdsmsx402.hd.intel.com>
2004-03-20 4:19 ` 2.6.4-mm2 Len Brown
2004-03-20 4:26 ` 2.6.4-mm2 Andrew Morton
2004-03-20 4:32 ` 2.6.4-mm2 Mark Wong
[not found] <A6974D8E5F98D511BB910002A50A6647615F5E2B@hdsmsx402.hd.intel.com>
2004-03-20 4:27 ` 2.6.4-mm2 Len Brown
2004-03-20 9:01 ` 2.6.4-mm2 Nick Piggin
2004-03-22 16:24 ` 2.6.4-mm2 markw
2004-03-20 23:12 2.6.4-mm2 sam
2004-03-20 23:41 ` 2.6.4-mm2 Olaf Hering
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