Mercurial > hg > graal-jvmci-8
comparison src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp @ 17935:7384f6a12fc1
8038212: Method::is_valid_method() check has performance regression impact for stackwalking
Summary: Only prune metaspace virtual spaces at safepoint so walking them is safe outside a safepoint.
Reviewed-by: mgerdin, mgronlun, hseigel, stefank
| author | coleenp |
|---|---|
| date | Thu, 15 May 2014 18:23:26 -0400 |
| parents | 9fdaa79b0c27 |
| children | 78bbf4d43a14 |
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| 17934:366c198c896d | 17935:7384f6a12fc1 |
|---|---|
| 6361 } | 6361 } |
| 6362 verify_work_stacks_empty(); | 6362 verify_work_stacks_empty(); |
| 6363 verify_overflow_empty(); | 6363 verify_overflow_empty(); |
| 6364 | 6364 |
| 6365 if (should_unload_classes()) { | 6365 if (should_unload_classes()) { |
| 6366 ClassLoaderDataGraph::purge(); | 6366 // Delay purge to the beginning of the next safepoint. Metaspace::contains |
| 6367 // requires that the virtual spaces are stable and not deleted. | |
| 6368 ClassLoaderDataGraph::set_should_purge(true); | |
| 6367 } | 6369 } |
| 6368 | 6370 |
| 6369 _intra_sweep_timer.stop(); | 6371 _intra_sweep_timer.stop(); |
| 6370 _intra_sweep_estimate.sample(_intra_sweep_timer.seconds()); | 6372 _intra_sweep_estimate.sample(_intra_sweep_timer.seconds()); |
| 6371 | 6373 |