--- old/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp 2010-04-13 08:11:16.000000000 -0700 +++ new/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp 2010-04-13 08:11:16.000000000 -0700 @@ -2073,7 +2073,12 @@ // Let the size policy know we're done size_policy->major_collection_end(old_gen->used_in_bytes(), gc_cause); - if (UseAdaptiveSizePolicy) { + if (PSResizeByFreeRatioWithSystemGC && + gc_cause == GCCause::_java_lang_system_gc) { + ParallelScavengeHeap* heap = (ParallelScavengeHeap*) Universe::heap(); + heap->resize_by_free_ratio(true); + + } else if (UseAdaptiveSizePolicy) { if (PrintAdaptiveSizePolicy) { gclog_or_tty->print("AdaptiveSizeStart: "); gclog_or_tty->stamp();