Re: [ANNOUNCE] 2.6.31-rc6-rt5

Dinakar Guniguntala
2009-08-20T15:29:40Z

On Wed, Aug 19, 2009 at 07:19:02PM -0700, john stultz wrote:
> On Wed, Aug 19, 2009 at 2:48 PM, Thomas Gleixner<tglx@linutronix.de> wrote:
> > We are pleased to announce the next update to our new preempt-rt
> > series.
>
> Hey Thomas, Peter, Ingo,
> I'm still seeing the odd SMP scheduler behavior (where all the
> processes line up on a single cpu) with -rt5. This can be easily
> reproduced with a "make -j8 bzImage". I'm I the only one seeing this?

I am seeing it with 2.6.31-rcX-rtY kernels on both a 8 CPU AMD/Intel box
Specjbb was returning pathetically low numbers which turns out to be
because all threads are running on just one of the cpus

-Dinakar

> Any suggestions on further debugging this?
>
> thanks
> -john