Mercurial > hg > graal-compiler
comparison src/share/vm/runtime/safepoint.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 | f42c10a3d4b1 |
| children | 78bbf4d43a14 |
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| 17934:366c198c896d | 17935:7384f6a12fc1 |
|---|---|
| 536 // rotate log files? | 536 // rotate log files? |
| 537 if (UseGCLogFileRotation) { | 537 if (UseGCLogFileRotation) { |
| 538 gclog_or_tty->rotate_log(false); | 538 gclog_or_tty->rotate_log(false); |
| 539 } | 539 } |
| 540 | 540 |
| 541 { | |
| 542 // CMS delays purging the CLDG until the beginning of the next safepoint and to | |
| 543 // make sure concurrent sweep is done | |
| 544 TraceTime t7("purging class loader data graph", TraceSafepointCleanupTime); | |
| 545 ClassLoaderDataGraph::purge_if_needed(); | |
| 546 } | |
| 547 | |
| 541 if (MemTracker::is_on()) { | 548 if (MemTracker::is_on()) { |
| 542 MemTracker::sync(); | 549 MemTracker::sync(); |
| 543 } | 550 } |
| 544 } | 551 } |
| 545 | 552 |