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21 Commits

Author SHA1 Message Date
Roland Westrelin
c8bfc7e7d7 8026054: New type profiling points: type of return values at calls 
X86 interpreter and c1 type profiling for return values at calls

Reviewed-by: kvn, twisti
 2013-10-12 12:12:59 +02:00
Roland Westrelin
cbd0e9bf96 8023657: New type profiling points: arguments to call 
X86 interpreter and c1 type profiling for arguments at calls

Reviewed-by: kvn, twisti
 2013-10-09 16:32:21 +02:00
David Chase
9a359984c2 7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32 
Add intrinsics using new instruction to interpreter, C1, C2, for suitable x86; add test

Reviewed-by: kvn, twisti
 2013-07-02 20:42:12 -04:00
Andreas Schoesser
e97599b826 8015660: Test8009761.java "Failed: init recursive calls: 24. After deopt 25" 
Windows reserves and only partially commits thread stack. For detecting more thread stack space for execution,  Windows installs one-shot page as guard page just before the current commited edge. It will trigger STACK_OVERFLOW_EXCEPTION when lands on last 4 pages of thread stack space. StackYellowPages default value is 2 on Windows (plus 1 page of StackRedPages, 3 pages guarded by hotspot) so the exception happens one page before Yellow pages. Same route executed second time will have one more page brought in, this leads same execution with different stack depth(interpreter mode). We need match Windows settings so the stack overflow exception will not happen before Yellow pages.

Reviewed-by: dholmes
 2013-06-18 09:08:35 -07:00
Thomas Schatzl
8d53e75550 6843347: Boundary values in some public GC options cause crashes 
Setting some public integer options to specific values causes crashes or undefined GC behavior. This patchset adds the necessary argument checking for these options.

Reviewed-by: jmasa, brutisso
 2013-05-15 11:05:09 +02:00
Vladimir Kozlov
cfcd28fd9d 8005522: use fast-string instructions on x86 for zeroing 
Use 'rep stosb' instead of 'rep stosq' when fast-string operations are available.

Reviewed-by: twisti, roland
 2013-01-03 15:09:55 -08:00
Tao Mao
447e7065d2 6677625: Move platform specific flags from globals.hpp to globals_<arch>.hpp 
Reviewed-by: kvn, dholmes, coleenp
 2012-08-27 15:17:17 -07:00
Tom Rodriguez
7a1487a726 Merge 2012-02-17 12:18:52 -08:00
Tom Rodriguez
f9b7a3e692 7143061: nsk/stress/stack/b4525850 crash VM 
Reviewed-by: kvn, twisti
 2012-02-14 15:43:56 -08:00
Coleen Phillimore
cfdca5342c 7059899: Stack overflows in Java code cause 64-bit JVMs to exit due to SIGSEGV 
Increase StackShadowPages to accomodate the JDK changes to increase buffer size in socketWrite

Reviewed-by: acorn, phh
 2012-02-13 12:30:47 -05:00
Kurt Miller
95c56a472b 7089790: integrate bsd-port changes 
Co-authored-by: Greg Lewis <glewis@eyesbeyond.com>
Co-authored-by: Jung-uk Kim <jkim@freebsd.org>
Co-authored-by: Christos Zoulas <christos@zoulas.com>
Co-authored-by: Landon Fuller <landonf@plausible.coop>
Co-authored-by: The FreeBSD Foundation <board@freebsdfoundation.org>
Co-authored-by: Michael Franz <mvfranz@gmail.com>
Co-authored-by: Roger Hoover <rhoover@apple.com>
Co-authored-by: Alexander Strange <astrange@apple.com>
Reviewed-by: kvn, twisti, jrose
 2011-09-25 16:03:29 -07:00
Y. Srinivas Ramakrishna
7293fabc43 6896099: Integrate CMS heap ergo with default heap sizing ergo 
6627787: CMS: JVM refuses to start up with -Xms16m -Xmx16m
7000125: CMS: Anti-monotone young gen sizing with respect to maximum whole heap size specification
7027529: CMS: retire CMSUseOldDefaults flag

Simplify CMS heap sizing code, relying on ergonomic initial sizing consistent with other collectors for the most part, controlling only young gen sizing to rein in pause times. Make CMS young gen sizing default statically cpu-dependant. Remove inconsistencies wrt generation sizing and policy code, allowing for the fixing for 6627787 and 7000125. For 7027529, retire the flag CMSUseOldDefaults which had been introduced as a bridge from JDK 5 to JDK 6 a number of years ago.

Reviewed-by: brutisso, poonam
 2011-03-16 10:37:08 -07:00
John Cuthbertson
2ad5e5ace5 7012642: G1: JumbleGC002 test aborts with segmentation violation due to uncaught stack overflow 
With recent G1 allocation path changes, the value of StackShadowPages in fast debug builds of the JVM, is no longer large enough to prevent the JVM C++ code from touching the stack guard pages. Increase the value of StackShadowPages to a suitable value.

Reviewed-by: ysr, tonyp, coleenp
 2011-01-19 13:01:11 -08:00
Stefan Karlsson
8006fe8f75 6989984: Use standard include model for Hospot 
Replaced MakeDeps and the includeDB files with more standardized solutions.

Reviewed-by: coleenp, kvn, kamg
 2010-11-23 13:22:55 -08:00
Bob Vandette
72616ad2bc 6989297: Integrate additional portability improvements 
Reviewed-by: vladidan, dholmes
 2010-10-07 15:12:57 -04:00
Erik Trimble
ba7c173659 6941466: Oracle rebranding changes for Hotspot repositories 
Change all the Sun copyrights to Oracle copyright

Reviewed-by: ohair
 2010-05-27 19:08:38 -07:00
Vladimir Kozlov
5f8098a402 6940701: Don't align loops in stubs for Niagara sparc 
Don't align loops in stubs for Niagara sparc since NOPs are expensive.

Reviewed-by: twisti, never
 2010-04-07 09:37:47 -07:00
Paul Hohensee
2f7d60fa36 6887571: Increase default heap config sizes 
Apply modification of existing server heap size ergo to all collectors except CMS.

Reviewed-by: jmasa, ysr, xlu
 2009-10-28 16:25:51 -04:00
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
Vladimir Kozlov
705188bb7b 6821700: tune VM flags for peak performance 
Tune C2 flags default values for performance.

Reviewed-by: never, phh, iveresov, jmasa, ysr
 2009-03-30 18:19:31 -07:00
J. Duke
8153779ad3 Initial load 2007-12-01 00:00:00 +00:00