On Tue, 2013-04-30 at 11:49 +0200, Mike Galbraith wrote: > 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)
(belay that, was thinking of keeping all tasks on a single node, but it'll likely stack the whole thing on a CPU or two, if so, it'll hurt) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
