[webkit-changes] [WebKit/WebKit] 3f0116: [TZone] Add code to set bucket counts for size cla...

[Michael Saboff]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 3f011645459b97e268c1d89d9878de8043839113
      https://github.com/WebKit/WebKit/commit/3f011645459b97e268c1d89d9878de8043839113
  Author: Michael Saboff <msaboff at apple.com>
  Date:   2024-10-17 (Thu, 17 Oct 2024)

  Changed paths:
    M Source/bmalloc/bmalloc/TZoneHeapManager.cpp
    M Source/bmalloc/bmalloc/TZoneHeapManager.h

  Log Message:
  -----------
  [TZone] Add code to set bucket counts for size classes via an environment variable
https://bugs.webkit.org/show_bug.cgi?id=281651
rdar://138092892

Reviewed by David Degazio.

Added code to change the number of buckets per size class via an environment variable (TZONE_BUCKET_CONFIG).
This code is a compile time feature that is enabled when BUSE_BUCKETS_FOR_SIZE_CLASSES_FROM_ENVVAR is set to 1
in TZoneHeapManager.cpp.  This is intended for trying different siz class values without having to recompile.

* Source/bmalloc/bmalloc/TZoneHeapManager.cpp:
(bmalloc::api::TZoneHeapManager::init):
(bmalloc::api::TZoneHeapManager::bucketCountForSizeClass):
* Source/bmalloc/bmalloc/TZoneHeapManager.h:
(bmalloc::api::TZoneHeapManager::bucketCountForSizeClass): Deleted.

Canonical link: https://commits.webkit.org/285365@main



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