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

From: Mike Galbraith
Date: Tue Apr 30 2013 - 05:50:26 EST

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)

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at