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| author | Pedro Henrique Kopper <pedro.kopper@canonical.com> | 2024-08-01 13:41:50 -0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2024-08-02 14:40:13 +0200 |
| commit | 64a66f4a3c89b4602ee1e6cd23b28729fc4562b3 (patch) | |
| tree | 6d587bca0f9fce81477b5275eb838312430c8d42 /drivers/cpufreq/powernv-cpufreq.c | |
| parent | 8400291e289ee6b2bf9779ff1c83a291501f017b (diff) | |
cpufreq: intel_pstate: Update Balance performance EPP for Emerald Rapids
On Intel Emerald Rapids machines, we ship the Energy Performance Preference
(EPP) default for balance_performance as 128. However, during an internal
investigation together with Intel, we have determined that 32 is a more
suitable value. This leads to significant improvements in both performance
and energy:
POV-Ray: 32% faster | 12% less energy
OpenSSL: 12% faster | energy within 1%
Build Linux Kernel: 29% faster | 18% less energy
Therefore, we should move the default EPP for balance_performance to 32.
This is in line with what has already been done for Sapphire Rapids.
Signed-off-by: Pedro Henrique Kopper <pedro.kopper@canonical.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/Zqu6zjVMoiXwROBI@capivara
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/powernv-cpufreq.c')
0 files changed, 0 insertions, 0 deletions