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Updated Intel Meteor Lake Tuning For Linux Shows Huge Performance/Power Improvements
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this post was submitted on 07 Jun 2024
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This is the best summary I could come up with:
Back in February Intel changed the Meteor Lake EPP from a value of 128 to 115 when operating in the default "balance_performance" mode but that turns out to not be entirely ideal.
The one-line patch put out today bumps it from 115 to 64 and is yielding nice gains in performance and power efficiency.
With the revised EPP value, the Intel Meteor Lake performance improved by 19% for the Speedometer web browser benchmark.
Meanwhile the Microsoft Teams video conference power consumption dropped by 35% with that EPP adjustment.
This patch provides that updated tuning magic for the Intel Meteor Lake SoCs with the P-State driver.
Hopefully the patches will be merged for Linux v6.11 if not being submitted early as a "fix" for the current 6.10 cycle...
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