Re: 2.6.8-rc2-mm2 performance improvements (scheduler?)

[Ingo Molnar]

* Martin J. Bligh <mbligh@xxxxxxxxxxx> wrote:

> >>  SDET 16  (see disclaimer)
> >>                             Throughput    Std. Dev
> >>                      2.6.7       100.0%         0.3%
> >>                  2.6.8-rc2        99.5%         0.3%
> >>              2.6.8-rc2-mm2       118.5%         0.6%
> > 
> > hum, interesting.  Can Con's changes affect the inter-node and inter-cpu
> > balancing decisions, or is this all due to caching effects, reduced context
> > switching etc?

Martin, could you try 2.6.8-rc2-mm2 with staircase-cpu-scheduler 
unapplied a re-run at least part of your tests?

there are a number of NUMA improvements queued up on -mm, and it would
be nice to know what effect these cause, and what effect the staircase
scheduler has.

	Ingo
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