subject:"\[PATCH V3 1\/2\] perf\/x86\: Move cpuc\->running into P4 specific code"

Re: [PATCH V3 1/2] perf/x86: Move cpuc->running into P4 specific code

2021-04-14 Thread Peter Zijlstra

Thanks for these Kan!

[PATCH V3 1/2] perf/x86: Move cpuc->running into P4 specific code

2021-04-13 Thread kan . liang

From: Kan Liang The 'running' variable is only used in the P4 PMU. Current perf sets the variable in the critical function x86_pmu_start(), which wastes cycles for everybody not running on P4. Move cpuc->running into the P4 specific p4_pmu_enable_event(). Add a static per-CPU 'p4_running' varia