Messages in this thread | | | Subject | Re: volanoMark regression with kernel 2.6.26-rc1 | From | "Zhang, Yanmin" <> | Date | Thu, 08 May 2008 13:20:12 +0800 |
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On Wed, 2008-05-07 at 19:34 +0200, Peter Zijlstra wrote: > On Wed, 2008-05-07 at 11:17 +0200, Ingo Molnar wrote: > > * Zhang, Yanmin <yanmin_zhang@linux.intel.com> wrote: > > > > > Comparing with 2.6.25, volanoMark has big regression with kernel > > > 2.6.26-rc1. It's about 50% on my 8-core stoakley, 16-core tigerton, > > > and Itanium Montecito. > > > > > > With bisect, I located below patch. > > > > thanks Yanmin, i've queued up your patch that reverts this change. > > Is this really needed now that GROUP_SCHED defaults to 'n' ? > > Yanmin, this is with GROUP_SCHED=y, right or is this without? With GROUP_SCHED=y.
I remember a similiar patch was merged into 2.6.25-rc1 and I found the similiar volanoMark regression, then you reverted it. Why to add it back to 2.6.26-rc1?
-yanmin
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