8200228: Change default value of HeapSizePerGCThread
Reviewed-by: tschatzl, shade, jwilhelm
--- a/src/hotspot/share/gc/shared/gc_globals.hpp Tue Apr 10 15:33:11 2018 -0700
+++ b/src/hotspot/share/gc/shared/gc_globals.hpp Wed Apr 11 08:18:13 2018 +0200
@@ -150,7 +150,7 @@
"Force dynamic selection of the number of " \
"parallel threads parallel gc will use to aid debugging") \
\
- product(size_t, HeapSizePerGCThread, ScaleForWordSize(64*M), \
+ product(size_t, HeapSizePerGCThread, ScaleForWordSize(32*M), \
"Size of heap (bytes) per GC thread used in calculating the " \
"number of GC threads") \
range((size_t)os::vm_page_size(), (size_t)max_uintx) \