diff options
| author | Giovanni Gherdovich <[email protected]> | 2020-01-22 16:16:15 +0100 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2020-01-28 21:37:04 +0100 |
| commit | eacf0474aec8bdccdc7f19386319127c67be3588 (patch) | |
| tree | efb7b1b70d507ec9ccaa00f07a64fe5a0d7c3a11 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 8bea0dfb4a820ae063568a87cc2e7d8f587377af (diff) | |
x86, sched: Add support for frequency invariance on ATOM_GOLDMONT*
The scheduler needs the ratio freq_curr/freq_max for frequency-invariant
accounting. On GOLDMONT (aka Apollo Lake), GOLDMONT_D (aka Denverton) and
GOLDMONT_PLUS CPUs (aka Gemini Lake) set freq_max to the highest frequency
reported by the CPU.
The encoding of turbo ratios for GOLDMONT* is identical to the one for
SKYLAKE_X, but we treat the Atom case apart because we want to set freq_max to
a higher value, thus the ratio freq_curr/freq_max to be lower, leading to more
conservative frequency selections (favoring power efficiency).
Signed-off-by: Giovanni Gherdovich <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions