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| author | Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> | 2018-01-10 11:38:52 -0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-01-11 18:57:20 +0100 |
| commit | d8de7a44e11f98f2c2a4c2e12e79ba9ffb839306 (patch) | |
| tree | f435c0d4d5653f5af5c4601bc0be090d05bb9ea2 /tools/perf/scripts/python/stackcollapse.py | |
| parent | dbd49b85eec7eb6d7ae61bad8306d5cdd85c142d (diff) | |
cpufreq: intel_pstate: Add Skylake servers support
Currently intel_pstate can function only in HWP mode on Skylake servers.
When HWP feature is not enabled on the processor then acpi-cpufreq is
driver is used.
Based on the power and performance tests using intel_pstate scaling
algorithm the results are comparable. But intel_pstate brings in
additional features:
- Display of turbo frequency range, which many users like to see
- Place limits in the turbo frequency range when platform allows
Since these tests are done only using non PID algorithm introduced in
kernel version 4.14, this patch is not a backport candidate. So each user
has to carefully weigh the benefits before he backports.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions