From: markw@osdl.org
To: piggin@cyberone.com.au
Cc: linux-kernel@vger.kernel.org
Subject: DBT-2 anticipatory scheduler and filesystem results with 2.6.1
Date: Mon, 19 Jan 2004 16:05:34 -0800 (PST) [thread overview]
Message-ID: <200401200005.i0K05do05666@mail.osdl.org> (raw)
Hi Nick,
I ran some dbt-2 tests against 5 filesystems with 2.6.1-mm4 and 2.6.1. I
see a degradation from 0 to 7% in throughput. In most cases there
appears to be a significant difference in the i/o wait and user time
(for PostgreSQL) between 2.6.1 and 2.6.1-mm4, where the i/o wait time is
going up. Thought you might be interested in the results since there
was a tuning patch in 2.6.1-mm3. I have links to more detailed results
(readprofile) here:
http://developer.osdl.org/markw/fs/project_results.html
but here's a summary:
% throughput change from 2.6.1 to 2.6.1-mm4
ext2 -5.9%
ext3 -5.1%
jfs -7.0%
reiserfs -2.2%
xfs -0.3%
--
Mark Wong - - markw@osdl.org
Open Source Development Lab Inc - A non-profit corporation
12725 SW Millikan Way - Suite 400 - Beaverton, OR 97005
(503) 626-2455 x 32 (office)
(503) 626-2436 (fax)
http://developer.osdl.org/markw/
next reply other threads:[~2004-01-20 0:33 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-20 0:05 markw [this message]
2004-01-20 4:38 ` Andrew Morton
2004-01-20 4:55 ` Nick Piggin
2004-01-21 16:23 ` markw
2004-01-22 7:00 ` Nick Piggin
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