Reduce memory used by CompiledMethods.
Use LengthPrefixedArray<>s instead of SwapVector<>s to store
CompiledMethod data and get rid of the unnecessary members
of CompiledMethod to reduce dex2oat memory usage. Refactor
the deduplication from CompilerDriver to a new class.
Use HashSet<> instead of std::set<> for the DedupeSet<> to
further decrease the memory usage and improve performance.
This reduces the dex2oat memory usage when compiling boot
image on Nexus 5 (with Optimizing, -j1) by ~6.75MiB (5%).
This also reduces the compile time by ~2.2% (~1.6% dex2oat
time; with Optimizing, without -j).
Change-Id: I974f1f5e58350de2bf487a2bca3907fa05fb80ea
diff --git a/runtime/mirror/class.cc b/runtime/mirror/class.cc
index 53fedab..9d01a1d 100644
--- a/runtime/mirror/class.cc
+++ b/runtime/mirror/class.cc
@@ -574,7 +574,7 @@
return nullptr;
}
size_t low = 0;
- size_t high = fields->Length();
+ size_t high = fields->size();
ArtField* ret = nullptr;
while (low < high) {
size_t mid = (low + high) / 2;