On 29 July 2013 12:15, Sudeep KarkadaNagesha <sudeep.karkadanage...@arm.com> wrote: > On 29/07/13 10:46, Vincent Guittot wrote: >> On 27 July 2013 12:42, Hanjun Guo <hanjun....@linaro.org> wrote: >>> Power aware scheduling needs the cpu topology information to improve the >>> cpu scheduler decision making. >> >> It's not only power aware scheduling. The scheduler already uses >> topology and cache sharing when CONFIG_SCHED_MC and/or >> CONFIG_SCHED_SMT are enable. So you should also add these configs for >> arm64 so the scheduler can use it >> > Just for my knowledge, I thought power aware using SCHED_MC/SMT was > removed. I see commit 8e7fbcbc22c12414bcc9dfdd683637f58fb32759 "sched: > Remove stale power aware scheduling remnants and dysfunctional knobs" > I may be missing something here.
It's a common mistake to mixed SCHED_MC and powersaving balance with SCHED_MC. Only the powersaving policy has been removed but the SCHED_MC and SCHED_SMT are always in the scheduler and gives perf improvement on arm 32bits > > Regards, > Sudeep > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
