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29 Commits

Author SHA1 Message Date
Stefan Karlsson
d410f19961 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse 
Reviewed-by: mgerdin, coleenp, bdelsart
 2014-10-02 10:55:36 +02:00
Jon Masamitsu
fbe6d80096 Merge 2014-07-10 13:39:18 -07:00
Stefan Karlsson
1b001a2afd 8049421: G1 Class Unloading after completing a concurrent mark cycle 
Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Reviewed-by: tschatzl, ehelin, brutisso, coleenp, roland, iveresov
 2014-07-07 10:12:40 +02:00
Stefan Karlsson
ef1e9b3c80 8049420: Backout 8048248 to correct attribution 
Reviewed-by: ehelin, brutisso
 2014-07-07 12:37:11 +02:00
Stefan Karlsson
8c3aced316 8048248: G1 Class Unloading after completing a concurrent mark cycle 
Reviewed-by: tschatzl, ehelin, brutisso, coleenp, roland, iveresov
 2014-07-07 10:12:40 +02:00
Markus Grönlund
95d24c7361 8047812: Ensure ClassLoaderDataGraph::classes_unloading_do only delivers klasses from CLDs with non-reclaimed class loader oops 
Reviewed-by: coleenp, sspitsyn, ehelin
 2014-06-27 13:33:36 +02:00
Coleen Phillimore
243d697d71 8026977: NPG: Remove ConstantPool::lock 
Write klass and resolved_references constant pool fields lock free.

Reviewed-by: jrose, twisti
 2014-06-19 11:16:10 -04:00
Staffan Larsen
8dc26f1a17 8044107: Add Diagnostic Command to list all ClassLoaders 
Reviewed-by: mgerdin, stefank
 2014-06-04 11:05:30 +02:00
Coleen Phillimore
c336175c94 8038212: Method::is_valid_method() check has performance regression impact for stackwalking 
Only prune metaspace virtual spaces at safepoint so walking them is safe outside a safepoint.

Reviewed-by: mgerdin, mgronlun, hseigel, stefank
 2014-05-15 18:23:26 -04:00
Roland Westrelin
b21d142f01 8037970: make PrintMethodData a diagnostic options 
Make PrintMethodData a diagnostic options for performance investigation

Reviewed-by: kvn, iveresov
 2014-03-31 10:35:06 +02:00
Erik Helin
a45b9ead44 Merge 2014-02-25 11:02:11 +01:00
Stefan Karlsson
a235c50791 8035412: Cleanup ClassLoaderData::is_alive 
Reviewed-by: coleenp, mgerdin
 2014-02-21 10:19:09 +01:00
Coleen Phillimore
4ab0b2732c 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on 
Remove search in system dictionary and hacks, replace with verifying in CLD::_klasses list.

Reviewed-by: dcubed, acorn
 2014-02-15 13:03:38 -05:00
Coleen Phillimore
469f290817 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains 
Metaspace::contains cannot look at purged metaspaces while CMS concurrently deallocates them.

Reviewed-by: mgerdin, sspitsyn, jmasa
 2014-01-07 13:26:56 -05:00
Markus Grönlund
b1e3461fe5 8028128: Add a type safe alternative for working with counter based data 
Reviewed-by: dholmes, egahlin
 2013-11-23 12:25:13 +01:00
Fredrik Arvidsson
508272e5f5 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes 
Rewrite of the getLoadedClasses() method implementation to include anonymous classes.

Reviewed-by: coleenp, sspitsyn
 2013-10-24 10:02:02 +02:00
Staffan Larsen
718f3252f6 8005849: JEP 167: Event-Based JVM Tracing 
Co-authored-by: Karen Kinnear <karen.kinnear@oracle.com>
Co-authored-by: Bengt Rutisson <bengt.rutisson@oracle.com>
Co-authored-by: Calvin Cheung <calvin.cheung@oracle.com>
Co-authored-by: Erik Gahlin <erik.gahlin@oracle.com>
Co-authored-by: Erik Helin <erik.helin@oracle.com>
Co-authored-by: Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>
Co-authored-by: Keith McGuigan <keith.mcguigan@oracle.com>
Co-authored-by: Mattias Tobiasson <mattias.tobiasson@oracle.com>
Co-authored-by: Markus Gronlund <markus.gronlund@oracle.com>
Co-authored-by: Mikael Auno <mikael.auno@oracle.com>
Co-authored-by: Nils Eliasson <nils.eliasson@oracle.com>
Co-authored-by: Nils Loodin <nils.loodin@oracle.com>
Co-authored-by: Rickard Backman <rickard.backman@oracle.com>
Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
Reviewed-by: acorn, coleenp, sla
 2013-06-10 11:30:51 +02:00
Mikael Gerdin
316993b3db 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 
Move initialization of dependencies to before allocation of CLD

Reviewed-by: stefank, coleenp
 2013-04-24 19:55:02 +02:00
Mikael Gerdin
c47ec9b4ca 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD 
Restructure initialization of ClassLoaderData to not add a new instance if init_dependencies fail

Reviewed-by: stefank, coleenp
 2013-04-23 08:39:55 +02:00
Mikael Gerdin
0edccc9e61 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock 
Refactor the CLD dependency list into a separate class. Use an ObjectLocker to synchronize additions to the CLD dependency list.

Reviewed-by: stefank, coleenp
 2013-04-10 13:27:35 +02:00
Christian Thalinger
6964a690ed 7198429: need checked categorization of caller-sensitive methods in the JDK 
Reviewed-by: kvn, jrose
 2013-03-25 17:13:26 -07:00
Stefan Karlsson
9ed09d08f5 8008549: NPG: SystemDictionary::find(...) unnecessarily keeps class loaders alive 
SystemDictionary::find(...) should not create and register ClassLoaderData objects for class loaders.

Co-authored-by: Erik Helin <erik.helin@oracle.com>
Reviewed-by: coleenp, acorn
 2013-02-21 17:22:15 +01:00
Ioi Lam
93b845e21b 6479360: PrintClassHistogram improvements 
Jcmd <pid> GC.class_stats (UnlockDiagnosticVMOptions)

Reviewed-by: coleenp, hseigel, sla, acorn
 2013-01-25 15:06:18 -05:00
David Katleman
614dd26d3d Merge 2012-12-26 14:23:50 -08:00
David Katleman
5dc630b150 8004982: JDK8 source with GPL header errors 
Reviewed-by: ohair
 2012-12-20 16:24:51 -08:00
Coleen Phillimore
54bbf614e8 8004883: NPG: clean up anonymous class fix 
Add klass_holder() to return either mirror or class_loader depending on if the class is anonymous or not.

Reviewed-by: stefank, jrose
 2012-12-12 11:39:29 -05:00
Coleen Phillimore
7aa43fc5d8 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap 
Add ClassLoaderData object for each anonymous class with metaspaces to allocate in.

Reviewed-by: twisti, jrose, stefank
 2012-11-29 16:50:29 -05:00
Jon Masamitsu
f6cc90e927 7199923: NPG: tools/javac/T7093325.java timeout 
Reviewed-by: stefank, coleenp, kvn
 2012-09-20 12:18:23 -07:00
Jon Masamitsu
5c58d27aac 6964458: Reimplement class meta-data storage to use native memory 
Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes

Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Co-authored-by: Tom Rodriguez <tom.rodriguez@oracle.com>
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
 2012-09-01 13:25:18 -04:00