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authorV Sowmya <v.sowmya@intel.com>2022-08-17 20:02:11 +0530
committerMartin L Roth <gaumless@gmail.com>2022-08-21 14:54:38 +0000
commit248708533b229254bde54290f01a72e58ab46da2 (patch)
treee4133714420ee3c9c3e99633f1b5a6a2a7da11f0 /src/soc/intel/alderlake/Kconfig
parent6eda41743eec410f2f927ebe16844cbfa24b08bb (diff)
Revert "mb/intel/adlrvp: Set EPP to 45% for all Adl RVP variants"
This reverts commit 2b19d547c0866fef84bdb7b226ce7a4ac81af64f. A power and performance analysis performed on Alder Lake demonstrated that with an EPP (Energy Performance Preference) at 50% along with EET (Energy Efficient Turbo) disabled, the overall SoC performance are similar or better and the SoC uses less power. For instance some browser benchmark results improved by 2% and some multi-core tests by 4% while at the same time power consumption lowered by approximately 7.6%. BUG=b:240669428 TEST=verify that EPP is back to the by default 50% setting `iotools rdmsr 0 0x774' Signed-off-by: V Sowmya <v.sowmya@intel.com> Change-Id: I76d3914e51c5320af4c202558e1e7c57b7c0de54 Reviewed-on: https://review.coreboot.org/c/coreboot/+/66834 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Baieswara Reddy Sagili <baieswara.reddy.sagili@intel.com> Reviewed-by: Saurabh Mishra <mishra.saurabh@intel.com> Reviewed-by: Usha P <usha.p@intel.com>
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