Re: [patch v7 0/21] sched: power aware scheduling

[Mike Galbraith]

On Tue, 2013-04-30 at 11:35 +0200, Mike Galbraith wrote: 
> On Tue, 2013-04-30 at 10:41 +0200, Ingo Molnar wrote: 

> > Which are the workloads where 'powersaving' mode hurts workload 
> > performance measurably?
> 
> Well, it'll lose throughput any time there's parallel execution
> potential but it's serialized instead.. using average will inevitably
> stack tasks sometimes, but that's its goal.  Hackbench shows it.

(but that consolidation can be a winner too, and I bet a nickle it would
be for a socket sized pgbench run)



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