volanoMark has 45% regression with kernel 2.6.25-rc1 on my both 8-core
stoakley and 16-core Tigerton.
I used bisect to locate below patch.
commit 58e2d4ca581167c2a079f4ee02be2f0bc52e8729
Author: Srivatsa Vaddagiri <[EMAIL PROTECTED]>
Date: Fri Jan 25 21:08:00 2008 +0100
sched: group scheduling, change how cpu load is calculated
hackbench has about 30% regression on 16-core tigerton, but has about 10%
improvement
on 8-core stoakley.
In addition, tbench has about 6% regression on my 8-core stoakley and
25% regression on 16-core stoakley. Some other benchmarks, like netperf/aim7
also have some regression. I will verify if they are all related to the
patch.
-yanmin
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