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62 Commits

Author SHA1 Message Date
Karen Kinnear
315de68fc0 4670071: loadClassInternal is too restrictive 
VM support for deadlock fix. Library fix in 4735126. See API proposal.

Reviewed-by: dholmes, blacklion
 2009-01-05 13:44:03 -05:00
Jon Masamitsu
31308ae8e4 Merge 2008-12-12 15:37:46 -08:00
Vladimir Kozlov
6483f9c7f8 Merge 2008-12-11 17:20:10 -08:00
John Coomes
8fc946854c 6765954: par compact - stress mode for splitting young gen spaces 
Reviewed-by: jmasa
 2008-12-11 12:05:21 -08:00
John Coomes
000b184507 6578152: fill_region_with_object has usability and safety issues 
Reviewed-by: apetrusenko, ysr
 2008-12-11 12:05:08 -08:00
John R Rose
e50f766540 6779339: turn off LinkWellKnownClasses by default pending further testing 
Temporarily turn off LinkWellKnownClasses optimization

Reviewed-by: never, kvn
 2008-12-08 17:15:02 -08:00
Igor Veresov
af509dd90d 6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus() 
In os::Linux::rebuild_cpu_to_node_map() fix the size of the CPU bitmap. Fixed arithmetic in MutableNUMASpace::adaptive_chunk_size() that could cause overflows and underflows of the chunk_size variable.

Reviewed-by: apetrusenko
 2008-12-03 14:18:57 -08:00
Igor Veresov
ed99040266 Merge 2008-11-26 09:24:57 -08:00
Xiaobin Lu
85138023c1 6554406: Change switch UseVMInterruptibleIO default to false (sol) 
The default value of UseVMInterruptibleIO is changed to false for JDK 7, but the default isn't changed for JDK 6 and earlier.

Reviewed-by: never, acorn, dholmes, kamg, alanb
 2008-11-22 00:16:09 -08:00
Y. Srinivas Ramakrishna
db6bef2c70 6722113: CMS: Incorrect overflow handling during precleaning of Reference lists 
When we encounter marking stack overflow during precleaning of Reference lists, we were using the overflow list mechanism, which can cause problems on account of mutating the mark word of the header because of conflicts with mutator accesses and updates of that field. Instead we should use the usual mechanism for overflow handling in concurrent phases, namely dirtying of the card on which the overflowed object lies. Since precleaning effectively does a form of discovered list processing, albeit with discovery enabled, we needed to adjust some code to be correct in the face of interleaved processing and discovery.

Reviewed-by: apetrusenko, jcoomes
 2008-11-20 12:27:41 -08:00
Igor Veresov
28b2c4aeaf Merge 2008-11-19 14:20:51 -08:00
Vladimir Kozlov
f2c8d25c73 6772413: code cleanup 
Removed lines in adm64.make with interpret.o and moved few constant strings from header files.

Reviewed-by: never
 2008-11-18 12:31:53 -08:00
John R Rose
849e0ffb04 6653858: dynamic languages need to be able to load anonymous classes 
Low-level privileged sun.misc.Unsafe.defineAnonymousClass

Reviewed-by: kvn
 2008-11-12 22:33:26 -08:00
John Coomes
401e04572a 6765804: GC "dead ratios" should be unsigned 
Reviewed-by: ysr, tonyp
 2008-10-29 06:30:02 -07:00
Tom Rodriguez
bc7e37f4df Merge 2008-10-21 11:21:45 -07:00
Vladimir Kozlov
55925534ec 6532536: Optimize arraycopy stubs for Intel cpus 
Use SSE2 movdqu in arraycopy stubs on newest Intel's cpus

Reviewed-by: rasbold
 2008-10-14 15:10:26 -07:00
Tom Rodriguez
7633aaa177 Merge 2008-10-06 13:11:32 -07:00
Antonios Printezis
6f5e28aca1 6752248: G1: introduce parallel heap verification 
Introduce parallel heap verification in G1.

Reviewed-by: jcoomes, apetrusenko
 2008-10-06 13:16:35 -04:00
Jon Masamitsu
6c19542a36 6660681: Incrementally reserve pages on win server 2003 for better large page affinity 
For windows server 2003 added option to reserve large pages individually.

Reviewed-by: alanb, jcoomes, tonyp, apetrusenko
 2008-10-02 12:01:08 -07:00
Vladimir Kozlov
adce6fc49a 6667595: Set probability FAIR for pre-, post- loops and ALWAYS for main loop 
Fix loop's probability. Add optimizations to avoid spilling. Change InlineSmallCode to product flag.

Reviewed-by: never
 2008-10-02 08:37:44 -07:00
Antonios Printezis
c8006a68d5 Merge 2008-10-01 15:05:06 -04:00
Chuck Rasbold
453d1a42b0 Merge 2008-09-30 15:53:55 -07:00
John Coomes
e98b7ce059 6729594: par compact - remove unused block table implementation 
Reviewed-by: tonyp, jmasa, apetrusenko
 2008-09-30 13:15:27 -07:00
John Coomes
f2851186bb 6725697: par compact - rename class ChunkData to RegionData 
Reviewed-by: iveresov, tonyp
 2008-09-30 12:20:22 -07:00
John Coomes
2e52e9dff2 6716466: par compact - remove VerifyParallelOldWithMarkSweep code 
Reviewed-by: jmasa
 2008-09-30 11:49:31 -07:00
Volker Simonis
ac161a1e17 6744783: HotSpot segfaults if given -XX options with an empty string argument 
Reviewed-by: kamg, kvn
 2008-09-25 12:50:51 -07:00
Andrey Petrusenko
1d67e1d25c Merge 2008-09-17 19:59:35 +04:00
Coleen Phillimore
83e7d32161 6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page 
Turn off c2 implicit null checking on windows and large pages specified.

Reviewed-by: jrose, xlu
 2008-09-02 15:18:26 -04:00
Antonios Printezis
70202307c0 Merge 2008-08-21 23:38:19 -04:00
Antonios Printezis
615777b6da Merge 2008-08-21 23:36:31 -04:00
Y. Srinivas Ramakrishna
6804a4e8ef 6739357: CMS: Switch off CMSPrecleanRefLists1 until 6722113 can be fixed 
Temporarily switch off the precleaning of Reference lists completely until related issues are fixed in 6722113.

Reviewed-by: jmasa, poonam, tonyp
 2008-08-20 15:41:36 -07:00
Jon Masamitsu
b8633a3b01 Merge 2008-07-28 15:30:23 -07:00
Erik Trimble
2d6f42d18c Merge 2008-07-11 01:14:44 -07:00
Jon Masamitsu
18dbebd143 6672698: mangle_unused_area() should not remangle the entire heap at each collection 
Maintain a high water mark for the allocations in a space and mangle only up to that high water mark.

Reviewed-by: ysr, apetrusenko
 2008-07-09 15:08:55 -07:00
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
74ee57a572 Merge 2008-07-01 11:59:44 -07:00
Y. Srinivas Ramakrishna
d44be8e3a0 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag 
Experimental() flags will protect features of an experimental nature that are not supported in the regular product build. Made UseG1GC an experimental flag.

Reviewed-by: jmasa, kamg, coleenp
 2008-06-30 17:04:59 -07:00
Y. Srinivas Ramakrishna
f521ab4f1a Merge 2008-06-24 13:20:34 -07:00
Shrinivas Joshi
5106cf17a3 6708714: Optimize long LShift on 32-bits x86 
For small (1-3 bits) left long shifts in 32-bits VM use sets of add+addc instructions instead of shld+shl on new AMD cpus.

Reviewed-by: never
 2008-06-23 14:11:12 -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
ac061d0424 Merge 2008-06-12 13:50:55 -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
Chuck Rasbold
d10912d513 6709972: runThese failed with assert(false,"bad AD file") 
Guard AryEqNode construction with has_match_rule() test, set SpecialArraysEquals default off

Reviewed-by: kvn, never
 2008-06-03 13:14:44 -07:00
Chuck Rasbold
2e672ac9bf 6695049: (coll) Create an x86 intrinsic for Arrays.equals 
Intrinsify java/util/Arrays.equals(char[], char[])

Reviewed-by: kvn, never
 2008-05-29 16:22:09 -07:00
Vladimir Kozlov
76035424de 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions 
Add LoadNKlass and CMoveN nodes, use CmpN and ConN nodes to generate narrow oops compare instructions.

Reviewed-by: never, rasbold
 2008-05-21 13:46:23 -07:00
Igor Veresov
035662396c Merge 2008-05-04 03:29:31 -07:00
John R Rose
bb7ccea4ff 6652736: well known classes in system dictionary are inefficiently processed 
Combine many scalar variables into a single enum-indexed array in SystemDictionary.

Reviewed-by: kvn
 2008-04-29 19:45:22 -07:00
Keith McGuigan
f072bc9d3f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes 
Initial checkin of JSDT code

Reviewed-by: acorn, sbohne
 2008-04-17 22:18:15 -04:00
Andrey Petrusenko
f784be24d1 Merge 2008-04-16 12:58:03 +04:00
Coleen Phillimore
4a831d45f0 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes 
Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv

Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
 2008-04-13 17:43:42 -04:00