< prev index next >
src/hotspot/share/gc/g1/g1Arguments.cpp
Print this page
rev 55404 : 8226197: Reducing G1?s CPU cost with simplified write post-barrier and disabling concurrent refinement
Summary: A prototype to add a mode for G1 to use a simplified write post-barrier. Guarded by new flag G1FastWriteBarrier.
@@ -111,11 +111,14 @@
// possible we only use one worker thread.
if (DumpSharedSpaces) {
FLAG_SET_ERGO(ParallelGCThreads, 1);
}
- if (FLAG_IS_DEFAULT(G1ConcRefinementThreads)) {
+ if (G1FastWriteBarrier) {
+ FLAG_SET_DEFAULT(G1ConcRefinementThreads, 0);
+ FLAG_SET_DEFAULT(G1ConcRSLogCacheSize, 0);
+ } else if (FLAG_IS_DEFAULT(G1ConcRefinementThreads)) {
FLAG_SET_ERGO(G1ConcRefinementThreads, ParallelGCThreads);
}
// MarkStackSize will be set (if it hasn't been set by the user)
// when concurrent marking is initialized.
< prev index next >