[webkit-changes] [WebKit/WebKit] 3e68b1: PGO profiling should take Speedometer3 into account.

Mon Sep 18 17:38:45 PDT 2023

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 3e68b1d06e4d8f320e7964ba7b316473ea704b80
      https://github.com/WebKit/WebKit/commit/3e68b1d06e4d8f320e7964ba7b316473ea704b80
  Author: Dewei Zhu <dewei_zhu at apple.com>
  Date:   2023-09-18 (Mon, 18 Sep 2023)

  Changed paths:
    M Tools/Scripts/build-and-collect-pgo-profiles
    M Tools/Scripts/pgo-profile

  Log Message:
  -----------
  PGO profiling should take Speedometer3 into account.
https://bugs.webkit.org/show_bug.cgi?id=261689
rdar://111352676

Reviewed by Yusuke Suzuki and Wenson Hsieh.

Inlcude Speedometer3 into PGO profile collection process.
Assigning 20% weight to Speedometer3 and reduce Speedometer2 weight from
60% to 40% so that overall Speeodmeter famility weight stays unchanged.
New weight is derived from experiment which tried couple different formulas.

* Tools/Scripts/build-and-collect-pgo-profiles:
* Tools/Scripts/pgo-profile:

Canonical link: https://commits.webkit.org/268104@main