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SubjectHIGHIO and CONFIG_2GB boost dbench performance
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CONFIG_HIGHIO and CONFIG_2GB improved dbench throughput on ext2, 
ext3, and reiserfs. I compared 4 2.4.19-pre9-aa2 kernel configs
on a quad Xeon with 3.75 GB ram.

dbench 192 improved more than dbench 64.
ext3 improved 35-65% with these options.
ext2 improved 27-35%.
reiserfs improved 17-30%.

dbench summary is at:
http://home.earthlink.net/~rwhron/kernel/123gb.html

For sequential reads, HIGHIO and 2GB tiobench has increased
throughput and lower cpu utilization. tiobench sequential write
performance in some cases is lower.

--
Randy Hron

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