Vladimir Kozlov
249b1f6c4f
6987135: Performance regression on Intel platform with 32-bits edition between 6u13 and 6u14
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Use hardware DIV instruction for long division by constant when it is faster than code with multiply.
Reviewed-by: never
2010-11-02 09:00:37 -07:00
Tom Rodriguez
1571a4a56f
6970683: improvements to hs_err output
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Reviewed-by: kvn, jrose, dholmes, coleenp
2010-10-21 11:55:10 -07:00
John Cuthbertson
becf7cffb3
Merge
2010-08-14 00:47:52 -07:00
Y. Srinivas Ramakrishna
7ee29eeb6a
6973570: OrderAccess::storestore() scales poorly on multi-socket x64 and sparc: cache-line ping-ponging
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Volatile store to static variable removed in favour of a volatile store to stack to avoid excessive cache coherency traffic; verified that the volatile store is not elided by any of our current compilers.
Reviewed-by: dholmes, dice, jcoomes, kvn
2010-08-10 14:53:35 -07:00
Bob Vandette
b95c7e9523
6953477: Increase portability and flexibility of building Hotspot
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A collection of portability improvements including shared code support for PPC, ARM platforms, software floating point, cross compilation support and improvements in error crash detail.
Reviewed-by: phh, never, coleenp, dholmes
2010-08-03 08:13:38 -04:00
Erik Trimble
ba7c173659
6941466: Oracle rebranding changes for Hotspot repositories
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Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
2010-05-27 19:08:38 -07:00
Xiomara Jayasena
15f08eb80e
6884624: Update copyright year
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Update copyright for files that have been modified in 2009 through Septermber
Reviewed-by: tbell, ohair
2009-09-22 14:06:10 -07:00
Vladimir Kozlov
ab7a29cdcc
Merge
2009-08-06 09:37:26 -07:00
Xiomara Jayasena
a63ef10004
6862919: Update copyright year
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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
Vladimir Kozlov
2641db378b
6863420: os::javaTimeNanos() go backward on Solaris x86
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Use new atomic long load method Atomic::load() to load max_hrtime.
Reviewed-by: never, ysr, johnc, phh, dcubed, acorn
2009-07-26 16:40:14 -07:00
Tom Rodriguez
134debb0ba
6822204: volatile fences should prefer lock:addl to actual mfence instructions
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Reviewed-by: kvn, phh
2009-03-26 14:31:45 -07:00
Christian Thalinger
de67e52949
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
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BitCount() should use POPC on SPARC processors where POPC is implemented directly in hardware.
Reviewed-by: kvn, never
2009-03-13 11:35:17 -07:00
Vladimir Kozlov
69f9ddee90
6791178: Specialize for zero as the compressed oop vm heap base
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Use zero based compressed oops if java heap is below 32gb and unscaled compressed oops if java heap is below 4gb.
Reviewed-by: never, twisti, jcoomes, coleenp
2009-03-12 10:37:46 -07:00
Christian Thalinger
66cecec230
6812587: Use auxv to determine SPARC hardware features on Solaris
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A similar function to getisax(2) should be used to determine all possible instruction set extensions.
Reviewed-by: never, kvn
2009-03-11 14:16:13 -07:00
Christian Thalinger
05d1de7727
6810672: Comment typos
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I have collected some typos I have found while looking at the code.
Reviewed-by: kvn, never
2009-02-27 13:27:09 -08:00
Xiomara Jayasena
76df5ec473
6754988: Update copyright year
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Update for files that have been modified starting July 2008
Reviewed-by: ohair, tbell
2008-10-02 19:58:19 -07:00
Coleen Phillimore
20dba03e99
6716785: implicit null checks not triggering with CompressedOops
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Allocate alignment-sized page(s) below java heap so that memory accesses at heap_base+1page give signal and cause an implicit null check
Reviewed-by: kvn, jmasa, phh, jcoomes
2008-07-19 17:38:22 -04:00
Xiomara Jayasena
c96a95c4b8
6719955: Update copyright year
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Update copyright year for files that have been modified in 2008
Reviewed-by: ohair, tbell
2008-07-02 12:55:16 -07:00
Coleen Phillimore
4a831d45f0
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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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
Steve Goldman
c89e39d40a
6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
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Rewrite frame::safe_for_sender and friends to be safe for collector/analyzer
Reviewed-by: dcubed, kvn
2008-04-08 12:23:15 -04:00
J. Duke
8153779ad3
Initial load
2007-12-01 00:00:00 +00:00
