commit c93c530efc175954160c3834c93961a1a946a35a
author Hiroshi Yamauchi <yamauchi@google.com> Thu Mar 20 16:15:37 2014 -0700
committer Hiroshi Yamauchi <yamauchi@google.com> Fri Mar 21 12:17:56 2014 -0700
tree 32a389e2b4cfc3296075aed23f353b8d3042c9a5
parent faa93b3ab455492dad1a9d3fb630e3936d389c85

Revoke rosalloc thread-local buffers at the checkpoint.

In the mark sweep collector, rosalloc thread-local buffers were
revoked during the pause. Now, they are revoked at the thread
checkpoint, as opposed to during the pause, which appears to help
reduce the pause time.

In Ritz MemAllocTest, the average sticky pause time went down ~20%
(925 us -> 724 us).

Bug: 13394464
Bug: 9986565
Change-Id: I104992a11b46d59264c0b9aa2db82b1ccf2826bc

runtime/gc/heap.h

diff --git a/runtime/gc/heap.h b/runtime/gc/heap.h
index 17c6f62..60b8450 100644
--- a/runtime/gc/heap.h
+++ b/runtime/gc/heap.h
@@ -437,7 +437,9 @@
   void Trim() LOCKS_EXCLUDED(heap_trim_request_lock_);
 
   void RevokeThreadLocalBuffers(Thread* thread);
+  void RevokeRosAllocThreadLocalBuffers(Thread* thread);
   void RevokeAllThreadLocalBuffers();
+  void AssertAllBumpPointerSpaceThreadLocalBuffersAreRevoked();
 
   void PreGcRosAllocVerification(TimingLogger* timings)
       EXCLUSIVE_LOCKS_REQUIRED(Locks::mutator_lock_);