commit 4460a84be92b5a94ecfb5c650aef4945ab849c93
author Hiroshi Yamauchi <yamauchi@google.com> Mon Mar 09 11:57:48 2015 -0700
committer Hiroshi Yamauchi <yamauchi@google.com> Wed Mar 11 15:32:59 2015 -0700
tree 2167b79cf593d5ff686aaf0e3bca3b7c571c6d69
parent 4cfe74cb50b73f5f4b6dd32aabed55d044afe348

Rosalloc thread local allocation path without a cas.

Speedup on N4:
MemAllocTest 3044 -> 2396 (~21% reduction)
BinaryTrees  4101 -> 2929 (~26% reduction)

Bug: 9986565
Change-Id: Ia1d1a37b9e001f903c3c056e8ec68fc8c623a78b

runtime/gc/space/zygote_space.h

diff --git a/runtime/gc/space/zygote_space.h b/runtime/gc/space/zygote_space.h
index 0cf4bb1..934a234 100644
--- a/runtime/gc/space/zygote_space.h
+++ b/runtime/gc/space/zygote_space.h
@@ -46,7 +46,7 @@
   }
 
   mirror::Object* Alloc(Thread* self, size_t num_bytes, size_t* bytes_allocated,
-                        size_t* usable_size) OVERRIDE;
+                        size_t* usable_size, size_t* bytes_tl_bulk_allocated) OVERRIDE;
 
   size_t AllocationSize(mirror::Object* obj, size_t* usable_size) OVERRIDE;
 
@@ -55,9 +55,11 @@
   size_t FreeList(Thread* self, size_t num_ptrs, mirror::Object** ptrs) OVERRIDE;
 
   // ZygoteSpaces don't have thread local state.
-  void RevokeThreadLocalBuffers(art::Thread*) OVERRIDE {
+  size_t RevokeThreadLocalBuffers(art::Thread*) OVERRIDE {
+    return 0U;
   }
-  void RevokeAllThreadLocalBuffers() OVERRIDE {
+  size_t RevokeAllThreadLocalBuffers() OVERRIDE {
+    return 0U;
   }
 
   uint64_t GetBytesAllocated() {