Tune rosalloc buffer sizes.
We now use one-page buffers for size brackets 4-7, instead of two-page
buffers, and the first 8 size brackets for thread-local allocations,
instead of 11.
No slowdown observed with MemAllocTest, EvaluateAndApplyChanges, and
BinaryTrees.
(cherrypick commit c4cd95fa37b7138a0fa26d07c235aa409542aecd)
Bug: 18377775
Change-Id: I311f3adf9cab660d258833b17df7e6d905f73c72
diff --git a/runtime/gc/allocator/rosalloc.cc b/runtime/gc/allocator/rosalloc.cc
index 991b956..7c2474f 100644
--- a/runtime/gc/allocator/rosalloc.cc
+++ b/runtime/gc/allocator/rosalloc.cc
@@ -1772,7 +1772,7 @@
if (i < 4) {
numOfPages[i] = 1;
} else if (i < 8) {
- numOfPages[i] = 2;
+ numOfPages[i] = 1;
} else if (i < 16) {
numOfPages[i] = 4;
} else if (i < 32) {