graphics: set maxThreads to 4 for the allocator

This should help buffer allocation performance.  We choose 4 because
that is the number of binder threads in SurfaceFlinger.

Bug: 38243574
Test: manual
Change-Id: I704aacb271fb7fd6a91c9231ab8a5256531eebc9

parent eaebef21

graphics/allocator/2.0/default/service.cpp

+1 −1

Original line number	Diff line number	Diff line
		@@ -24,5 +24,5 @@ using android::hardware::graphics::allocator::V2_0::IAllocator;
		using android::hardware::defaultPassthroughServiceImplementation;

		int main() {
		return defaultPassthroughServiceImplementation<IAllocator>();
		return defaultPassthroughServiceImplementation<IAllocator>(4);
		}