On 10/16/07, Siddha, Suresh B <[EMAIL PROTECTED]> wrote:
> On Tue, Oct 16, 2007 at 12:07:06PM -0700, Ken Chen wrote:
> > We recently discovered a nasty performance bug in the kernel CPU load
> > balancer where we were hit by 50% performance regression.
> >
> > When tasks are assigned to a subset of
* Ken Chen <[EMAIL PROTECTED]> wrote:
> We recently discovered a nasty performance bug in the kernel CPU load
> balancer where we were hit by 50% performance regression.
>
> When tasks are assigned to a subset of CPUs that span across
> sched_domains (either ccNUMA node or the new multi-core d
On Tue, Oct 16, 2007 at 12:07:06PM -0700, Ken Chen wrote:
> We recently discovered a nasty performance bug in the kernel CPU load
> balancer where we were hit by 50% performance regression.
>
> When tasks are assigned to a subset of CPUs that span across
> sched_domains (either ccNUMA node or the
We recently discovered a nasty performance bug in the kernel CPU load
balancer where we were hit by 50% performance regression.
When tasks are assigned to a subset of CPUs that span across
sched_domains (either ccNUMA node or the new multi-core domain) via
cpu affinity, kernel fails to perform pro
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