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34 Commits

Author SHA1 Message Date
Tom Deneau
f23b68b367 6902182: 4/4 Starting with jdwp agent should not incur performance penalty 
Rename can_post_exceptions support to can_post_on_exceptions. Add support for should_post_on_exceptions flag to permit per JavaThread optimizations.

Reviewed-by: never, kvn, dcubed
 2010-02-01 17:35:05 -07:00
Y. Srinivas Ramakrishna
331512606a 6896647: card marks can be deferred too long 
Deferred card marks are now flushed during the gc prologue. Parallel[Scavege,OldGC] and SerialGC no longer defer card marks generated by COMPILER2 as a result of ReduceInitialCardMarks. For these cases, introduced a diagnostic option to defer the card marks, only for the purposes of testing and diagnostics. CMS and G1 continue to defer card marks. Potential performance concern related to single-threaded flushing of deferred card marks in the gc prologue will be addressed in the future.

Reviewed-by: never, johnc
 2010-01-13 15:26:39 -08:00
Igor Veresov
5bec0d60ab Merge 2010-01-06 22:21:39 -08:00
Tom Rodriguez
98449cf2c2 6914300: ciEnv should export all well known classes 
Reviewed-by: kvn, twisti
 2010-01-06 14:22:39 -08:00
Christian Thalinger
caf28727eb 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164) 
During the work for 6829187 we have fixed a number of basic bugs which are logically grouped with 6815692 and 6858164 but which must be reviewed and pushed separately.

Reviewed-by: kvn, never
 2010-01-04 18:38:08 +01:00
Yumin Qi
4f656a451e 6361589: Print out stack trace for target thread of GC crash 
If GC crashed with java thread involved, print out the java stack trace in error report

Reviewed-by: never, ysr, coleenp, dholmes
 2009-12-11 11:09:49 -08:00
Mandy Chung
b409d16477 6888880: JKernel VM to inject the sun.jkernel.DownloadManager as a boot classloader hook 
Call sun.jkernel.DownloadManager.setBootClassLoaderHook during the kernel VM initialization

Reviewed-by: alanb, coleenp, acorn
 2009-11-25 08:37:04 -08:00
Y. Srinivas Ramakrishna
928ac69fcd 6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning 
6889757: G1: enable card mark elision for initializing writes from compiled code (ReduceInitialCardMarks)

Defer the (compiler-elided) card-mark upon a slow-path allocation until after the store  and before the next subsequent safepoint; G1 now answers yes to can_elide_tlab_write_barriers().

Reviewed-by: jcoomes, kvn, never
 2009-10-16 02:05:46 -07:00
John R Rose
f34acd6601 Merge 2009-09-30 13:25:39 -07:00
Daniel D. Daugherty
f6523d1043 6876794: 4/4 sp07t002 hangs very intermittently 
Remove over locking by VMThread on "is thread suspended?" check

Reviewed-by: dholmes, acorn, andrew
 2009-09-22 21:12:37 -06:00
John R Rose
e261aecad8 6863023: need non-perm oops in code cache for JSR 292 
Make a special root-list for those few nmethods which might contain non-perm oops.

Reviewed-by: twisti, kvn, never, jmasa, ysr
 2009-09-15 21:53:47 -07:00
Xiomara Jayasena
a63ef10004 6862919: Update copyright year 
Update copyright for files that have been modified in 2009, up to 07/09

Reviewed-by: tbell, ohair
 2009-07-28 12:12:40 -07:00
Y. Srinivas Ramakrishna
9d9317de4c 6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM 
Short-circuit gc-a-lot attempts by non-JavaThreads; SkipGCALot c'tor to elide re-entrant gc-a-lot attempts.

Reviewed-by: apetrusenko, jcoomes, jmasa, kamg
 2009-06-11 12:40:00 -07:00
Xiaobin Lu
62fa852746 6699669: Hotspot server leaves synchronized block with monitor in bad state 
Remove usage of _highest_lock field in Thread so that is_lock_owned won't depend on the correct update of that field.

Reviewed-by: never, dice, acorn
 2009-04-06 15:47:39 -07:00
Paul Hohensee
5231fcdc40 6810653: Change String cache class used by Hotspot from String to StringValue 
Change create_vm() to load and initialize StringValue rather than String.

Reviewed-by: kvn
 2009-03-24 21:56:53 -04:00
Igor Veresov
cbf1c89d60 6770608: G1: Mutator thread can flush barrier and satb queues during safepoint 
6660573: G1: BigApps Failure : guarantee(satb_mq_set.completed_buffers_num() == 0,"invariant")

When exiting a mutator thread is removed from the thread list before it has a chance to flush its SATB and barrier queues. If GC happens at this moment the objects that are refererred from these queues can be moved, which will case a crash. The fix is simply to flush the buffers before removing a thread from the list.

Reviewed-by: jcoomes, tonyp
 2008-11-14 14:23:05 -08:00
Karen Kinnear
056f3ea7aa Merge 2008-09-30 12:24:27 -04:00
Coleen Phillimore
32addb490d 6719149: Wrong "java/lang/String should not be loaded yet" assertion in fastdebug bits with UseStringCache 
Assertion is invalid because java.lang.String may be initialized just before this assertion.

Reviewed-by: phh
 2008-09-26 13:33:15 -04:00
Andrey Petrusenko
1d67e1d25c Merge 2008-09-17 19:59:35 +04:00
Y. Srinivas Ramakrishna
d9929c525b Merge 2008-08-27 11:20:46 -07:00
Xiaobin Lu
ec7f8bf1cb 6740526: sun/management/HotspotThreadMBean/GetInternalThreads.java test failed 
Reviewed-by: dholmes, dcubed
 2008-08-25 13:52:13 -07:00
Antonios Printezis
615777b6da Merge 2008-08-21 23:36:31 -04:00
Xiaobin Lu
bf2763ee4e 6608862: segv in JvmtiEnvBase::check_for_periodic_clean_up() 
Reviewed-by: dholmes, dcubed, jcoomes
 2008-08-15 10:08:20 -07:00
Keith McGuigan
74faacc945 6721093: -XX:AppendRatio=N not supported 
Add mechanism to ignore unsupported flags for a set period of time

Reviewed-by: acorn, never, coleenp
 2008-07-28 14:07:44 -04:00
Xiomara Jayasena
c96a95c4b8 6719955: Update copyright year 
Update copyright year for files that have been modified in 2008

Reviewed-by: ohair, tbell
 2008-07-02 12:55:16 -07:00
Y. Srinivas Ramakrishna
f521ab4f1a Merge 2008-06-24 13:20:34 -07:00
Vladimir Kozlov
afbdf29629 6714404: Add UseStringCache switch to enable String caching under AggressiveOpts 
Poke String.stringCacheEnabled during vm initialization

Reviewed-by: never
 2008-06-13 14:49:07 -07:00
Y. Srinivas Ramakrishna
18f3386a98 6711316: Open source the Garbage-First garbage collector 
First mercurial integration of the code for the Garbage-First garbage collector.

Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr
 2008-06-05 15:57:56 -07:00
Keith McGuigan
c2c3f0fe72 Merge 2008-03-20 09:17:30 -05:00
Steve Bohne
bf559c6dce 6667833: Remove CacheTimeMillis 
Remove -XX:+CacheTimeMillis option and associated functionality

Reviewed-by: acorn, never
 2008-03-19 09:58:01 -04:00
Daniel D. Daugherty
0745d10694 Merge 2008-03-13 14:17:48 -07:00
Daniel D. Daugherty
454bce8993 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC 
(for Serguei) Clean up use of No_Safepoint_Verifier in JVM TI

Reviewed-by: dcubed
 2008-03-12 18:09:34 -07:00
Paul Hohensee
4abbae1fc2 6621621: HashMap front cache should be enabled only with AggressiveOpts 
Reviewed-by: sbohne, xlu
 2007-12-05 09:02:00 -08:00
J. Duke
8153779ad3 Initial load 2007-12-01 00:00:00 +00:00