From: Andrew Morton <akpm@osdl.org>
To: maryedie@osdl.org
Cc: linux-mm@kvack.org
Subject: Re: Poor DBT-3 pgsql 8way numbers on recent 2.6 mm kernels
Date: Fri, 12 Mar 2004 23:39:00 -0800 [thread overview]
Message-ID: <20040312233900.0d68711e.akpm@osdl.org> (raw)
In-Reply-To: <1079130684.2961.134.camel@localhost>
Mary Edie Meredith <maryedie@osdl.org> wrote:
>
> For the last few mm kernels, I have discovered a
> performance problem in DBT-3 (using PostgreSQL)
> in the "throughput" portion of the test (when the
> test is running multiple processes ) on our 8-way
> STP systems as compared to 4-way runs and the baseline
> kernel results.
If I could reproduce this I could find and fix it very quickly. But when I
tried to get dbt2 working it was a near-death (and unsuccessful)
experience. Did it get any easier in dbt3?
I wold be suspecting the darn readahead code again. That was merged into
Linus's tree yesterday so perhaps you can test latest -bk?
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next prev parent reply other threads:[~2004-03-13 7:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-12 22:31 Mary Edie Meredith
2004-03-13 7:39 ` Andrew Morton [this message]
[not found] ` <405379ED.A7D6B1E4@us.ibm.com>
2004-03-13 21:48 ` Andrew Morton
2004-03-15 16:45 ` Mary Edie Meredith
2004-03-15 17:16 ` Badari Pulavarty
2004-03-15 19:33 ` Ram Pai
2004-03-17 19:31 ` Mary Edie Meredith
2004-03-17 20:33 ` Ram Pai
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