On Mon, 2010-04-19 at 07:34 +1000, Michael Neuling wrote: > > Are there any numbers available on how much they gain? It might be worth > > to stick in real numbers instead of this alleged 15%. > > I get some gain numbers but obviously the workloads makes a huge > difference. From a scheduler perspective, I assume an > average/representative gain is best rather than an optimistic or > pessimistic one?
Yeah, average would be best. > We'll have different gains for SMT2 and SMT4, so we could change the > gain dynamically based on which SMT mode we are in. Does that seem like > something we should add as an arch hook? That's the sort of thing you can use arch_scale_smt_power() for. But be weary to not fall into the same trap I did with x86, where I confused actual gain with capacity (When idle the actual gain is 0, but the capacity is not). _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
