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
diff --git a/runtime/gc/space/large_object_space.h b/runtime/gc/space/large_object_space.h
index 847f575..d1f9386 100644
--- a/runtime/gc/space/large_object_space.h
+++ b/runtime/gc/space/large_object_space.h
@@ -62,9 +62,11 @@
}
size_t FreeList(Thread* self, size_t num_ptrs, mirror::Object** ptrs) OVERRIDE;
// LargeObjectSpaces 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;
}
bool IsAllocSpace() const OVERRIDE {
return true;
@@ -124,7 +126,7 @@
// Return the storage space required by obj.
size_t AllocationSize(mirror::Object* obj, size_t* usable_size);
mirror::Object* Alloc(Thread* self, size_t num_bytes, size_t* bytes_allocated,
- size_t* usable_size);
+ size_t* usable_size, size_t* bytes_tl_bulk_allocated);
size_t Free(Thread* self, mirror::Object* ptr);
void Walk(DlMallocSpace::WalkCallback, void* arg) OVERRIDE LOCKS_EXCLUDED(lock_);
// TODO: disabling thread safety analysis as this may be called when we already hold lock_.
@@ -153,7 +155,7 @@
size_t AllocationSize(mirror::Object* obj, size_t* usable_size) OVERRIDE
EXCLUSIVE_LOCKS_REQUIRED(lock_);
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 Free(Thread* self, mirror::Object* obj) OVERRIDE;
void Walk(DlMallocSpace::WalkCallback callback, void* arg) OVERRIDE LOCKS_EXCLUDED(lock_);
void Dump(std::ostream& os) const;