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SubjectRe: [RFC PATCH 0/4] Gang scheduling in CFS

* Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> wrote:

> On Mon, 19 Dec 2011 17:15:05 +0530, Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> wrote:
> > >
> > > What's behind this huge speedup? Does ebizzy use user-space
> > > spinlocks perhaps? Could we do something on the user-space side
> > > to get a similar speedup?
> > >
> > Some more oprofile data here for the above ebizzy-2VM run:
> >
> That is readprofile data, kernel booted with profile=2

Btw., you could try this newfangled tools/perf/ thing to profile
the kernel ;-)

Thanks,

Ingo


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