Split the allocation path into 'instrumented' and 'uninstrumented'
ones.
The instrumented path is equivalent to the existing allocation path
that checks for three instrumentation mechanisms (the debugger
allocation tracking, the runtime allocation stats collection, and
valgrind) for every allocation. The uinstrumented path does not
perform these checks. We use the uninstrumented path by default and
enable the instrumented path only when any of the three mechanisms is
enabled. The uninstrumented version of Heap::AllocObject() is inlined.
This change improves the Ritz MemAllocTest by ~4% on Nexus 4 and ~3%
on Host/x86.
Bug: 9986565
Change-Id: I3e68dfff6789d77bbdcea98457b694e1b5fcef5f
diff --git a/runtime/mirror/class.h b/runtime/mirror/class.h
index d97b603..4f8ab7d 100644
--- a/runtime/mirror/class.h
+++ b/runtime/mirror/class.h
@@ -371,7 +371,12 @@
}
// Creates a raw object instance but does not invoke the default constructor.
- Object* AllocObject(Thread* self) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
+ Object* AllocObject(Thread* self) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
+ return AllocObjectInstrumented(self);
+ }
+
+ Object* AllocObjectUninstrumented(Thread* self) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
+ Object* AllocObjectInstrumented(Thread* self) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
bool IsVariableSize() const {
// Classes and arrays vary in size, and so the object_size_ field cannot
@@ -764,6 +769,8 @@
bool IsAssignableFromArray(const Class* klass) const
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
+ void CheckObjectAlloc() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
+
// defining class loader, or NULL for the "bootstrap" system loader
ClassLoader* class_loader_;