diff options
| author | Akshay Adiga <[email protected]> | 2018-05-16 17:32:14 +0530 |
|---|---|---|
| committer | Michael Ellerman <[email protected]> | 2018-05-28 18:46:33 +1000 |
| commit | ac9816dcbab53c57bcf1d7b15370b08f1e284318 (patch) | |
| tree | 6c3770a0db396ba9b743b913c55ca1c450368475 /tools/perf/scripts/python/bin | |
| parent | 458c70173daaaa823faeb5b4031bf8fa34c7ca16 (diff) | |
powerpc/powernv/cpuidle: Init all present cpus for deep states
Init all present cpus for deep states instead of "all possible" cpus.
Init fails if a possible cpu is guarded. Resulting in making only
non-deep states available for cpuidle/hotplug.
Stewart says, this means that for single threaded workloads, if you
guard out a CPU core you'll not get WoF (Workload Optimised
Frequency), which means that performance goes down when you wouldn't
expect it to.
Fixes: 77b54e9f213f ("powernv/powerpc: Add winkle support for offline cpus")
Cc: [email protected] # v3.19+
Signed-off-by: Akshay Adiga <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/bin')
0 files changed, 0 insertions, 0 deletions