[Bf-blender-cvs] [ae7163007d9] master: Allocator: improve protection against false sharing

[Jacques Lucke]

Commit: ae7163007d9b3d4ca457d095e39c64c673253fe9
Author: Jacques Lucke
Date:   Fri Jan 6 13:03:09 2023 +0100
Branches: master
https://developer.blender.org/rBae7163007d9b3d4ca457d095e39c64c673253fe9

Allocator: improve protection against false sharing

On Apple Silicon, the cache line size is 128 bytes.

===================================================================

M	intern/guardedalloc/intern/memory_usage.cc

===================================================================

diff --git a/intern/guardedalloc/intern/memory_usage.cc b/intern/guardedalloc/intern/memory_usage.cc
index d4abff32f79..2ea6fe7e85f 100644
--- a/intern/guardedalloc/intern/memory_usage.cc
+++ b/intern/guardedalloc/intern/memory_usage.cc
@@ -21,7 +21,7 @@ struct Global;
 /**
  * This is stored per thread. Align to cache line size to avoid false sharing.
  */
-struct alignas(64) Local {
+struct alignas(128) Local {
   /**
    * Retain shared ownership of #Global to make sure that it is not destructed.
    */