diff options
| -rw-r--r-- | runtime/gc/space/region_space.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/runtime/gc/space/region_space.h b/runtime/gc/space/region_space.h index c2007760c6..5af1dd3cf7 100644 --- a/runtime/gc/space/region_space.h +++ b/runtime/gc/space/region_space.h @@ -35,8 +35,10 @@ namespace space { // will not try to allocate a new region from the beginning of the // region space, but from the last allocated region. This allocation // strategy reduces region reuse and should help catch some GC bugs -// earlier. -static constexpr bool kCyclicRegionAllocation = true; +// earlier. However, cyclic region allocation can also create memory +// fragmentation at the region level (see b/33795328); therefore, we +// only enable it in debug mode. +static constexpr bool kCyclicRegionAllocation = kIsDebugBuild; // A space that consists of equal-sized regions. class RegionSpace final : public ContinuousMemMapAllocSpace { |