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SubjectRe: 2.6.5-mm5 wrote:
> I have more results with DBT-2 on my 4-way Xeon system:
> It doesn't look like the latest cpu scheduler work is helping this
> workload. I've also made sure that the database was set to use fsync
> instead of fdatasync so you can see if those fsync speedup patches are
> offering anything with this workload too.
> ext2 ext3
> 2.6.5-mm5 2165 1933
> 2.6.5-mm4 2180
> 2.6.5-mm3 2165 1930
> 2.6.5 2385
> Mark

Hmm, well the sched-less-idle patch is in mm5, which brought
2.6.5-rc3-mm4 to 2320 on ext2.

The only other significant scheduler changes since that kernel
are in -mm5.

So either sched_balance_context is causing a regression that
counters sched_less_idle, or maybe it isn't a scheduler problem?
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