Mercurial > hg > graal-compiler
diff src/share/vm/runtime/globals.hpp @ 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 | dca06e7f503d |
| children | 7bb995fbd3c0 660978a2a31a |
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--- a/src/share/vm/runtime/globals.hpp Fri Feb 27 15:30:47 2009 -0800 +++ b/src/share/vm/runtime/globals.hpp Mon Mar 02 16:37:04 2009 -0800 @@ -662,6 +662,12 @@ product(ccstrlist, OnOutOfMemoryError, "", \ "Run user-defined commands on first java.lang.OutOfMemoryError") \ \ + manageable(bool, HeapDumpBeforeFullGC, false, \ + "Dump heap to file before any major stop-world GC") \ + \ + manageable(bool, HeapDumpAfterFullGC, false, \ + "Dump heap to file after any major stop-world GC") \ + \ manageable(bool, HeapDumpOnOutOfMemoryError, false, \ "Dump heap to file when java.lang.OutOfMemoryError is thrown") \ \ @@ -1971,6 +1977,12 @@ product(bool, PrintHeapAtSIGBREAK, true, \ "Print heap layout in response to SIGBREAK") \ \ + manageable(bool, PrintClassHistogramBeforeFullGC, false, \ + "Print a class histogram before any major stop-world GC") \ + \ + manageable(bool, PrintClassHistogramAfterFullGC, false, \ + "Print a class histogram after any major stop-world GC") \ + \ manageable(bool, PrintClassHistogram, false, \ "Print a histogram of class instances") \ \