Mercurial > hg > graal-compiler
diff src/share/vm/gc_interface/collectedHeap.cpp @ 615:c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
Summary: Call newly created CollectedHeap::dump_{pre,post}_full_gc before and after every stop-world full collection cycle on GenCollectedHeap and ParallelScavengeHeap. (Support for G1CollectedHeap forthcoming under CR 6810861.) Small modifications to existing heap dumping and class histogram implementation, especially to allow multiple on-the-fly histos/dumps by the VM thread during a single safepoint.
Reviewed-by: jmasa, alanb, mchung
author | ysr |
---|---|
date | Mon, 02 Mar 2009 16:37:04 -0800 |
parents | d593294016c3 |
children | 7bb995fbd3c0 |
line wrap: on
line diff
--- a/src/share/vm/gc_interface/collectedHeap.cpp Fri Feb 27 15:30:47 2009 -0800 +++ b/src/share/vm/gc_interface/collectedHeap.cpp Mon Mar 02 16:37:04 2009 -0800 @@ -294,3 +294,29 @@ ThreadLocalAllocBuffer::resize_all_tlabs(); } } + +void CollectedHeap::pre_full_gc_dump() { + if (HeapDumpBeforeFullGC) { + TraceTime tt("Heap Dump: ", PrintGCDetails, false, gclog_or_tty); + // We are doing a "major" collection and a heap dump before + // major collection has been requested. + HeapDumper::dump_heap(); + } + if (PrintClassHistogramBeforeFullGC) { + TraceTime tt("Class Histogram: ", PrintGCDetails, true, gclog_or_tty); + VM_GC_HeapInspection inspector(gclog_or_tty, false /* ! full gc */, false /* ! prologue */); + inspector.doit(); + } +} + +void CollectedHeap::post_full_gc_dump() { + if (HeapDumpAfterFullGC) { + TraceTime tt("Heap Dump", PrintGCDetails, false, gclog_or_tty); + HeapDumper::dump_heap(); + } + if (PrintClassHistogramAfterFullGC) { + TraceTime tt("Class Histogram", PrintGCDetails, true, gclog_or_tty); + VM_GC_HeapInspection inspector(gclog_or_tty, false /* ! full gc */, false /* ! prologue */); + inspector.doit(); + } +}