Reviewers: ulan,
Description:
Waiting for sweeper threads is last resort in SlowAllocateRaw.
BUG=
Please review this at https://codereview.chromium.org/356403002/
SVN Base: https://v8.googlecode.com/svn/branches/bleeding_edge
Affected files (+11, -0 lines):
M src/spaces.cc
Index: src/spaces.cc
diff --git a/src/spaces.cc b/src/spaces.cc
index
194f75dfbfa56e0c3498cb83f63ade07df0596eb..777a74683a50f1312e6a334f5371a82cb147808e
100644
--- a/src/spaces.cc
+++ b/src/spaces.cc
@@ -2614,6 +2614,17 @@ HeapObject* PagedSpace::SlowAllocateRaw(int
size_in_bytes) {
return free_list_.Allocate(size_in_bytes);
}
+ // If sweeper threads are still running, wait for them.
+ if (collector->IsConcurrentSweepingInProgress()) {
+ collector->WaitUntilSweepingCompleted();
+
+ // After waiting for the sweeper threads, there may be new free-list
+ // entries.
+ HeapObject* object = free_list_.Allocate(size_in_bytes);
+ if (object != NULL)
+ return object;
+ }
+
// Finally, fail.
return NULL;
}
--
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