Messages in this thread | | | Date | Mon, 19 Jan 2004 16:05:34 -0800 (PST) | From | markw@osdl ... | Subject | DBT-2 anticipatory scheduler and filesystem results with 2.6.1 |
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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/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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