Reapply "[scudo] Apply the min release threshold to the group" (llvm#…

…112252) This reverts commit 037938d.
ChiaHungDuan · Oct 14, 2024 · 59e3042 · 59e3042
1 parent 76173b1
commit 59e3042
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/compiler-rt/lib/scudo/standalone/primary64.h b/compiler-rt/lib/scudo/standalone/primary64.h
@@ -1492,6 +1492,11 @@ template <typename Config> class SizeClassAllocator64 {
       }
 
       const uptr PushedBytesDelta = BytesInBG - BG->BytesInBGAtLastCheckpoint;
+      if (PushedBytesDelta < getMinReleaseAttemptSize(BlockSize)) {
+        Prev = BG;
+        BG = BG->Next;
+        continue;
+      }
 
       // Given the randomness property, we try to release the pages only if the
       // bytes used by free blocks exceed certain proportion of group size. Note