258 Commits

Author SHA1 Message Date
Y. Srinivas Ramakrishna
f2b6ac989e 6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
The option CMSInitiatingPermOccupancyFraction now controls perm triggering threshold. Even though the actual value of the threshold has not yet been changed, so there is no change in policy, we now have the infrastructure in place for dynamically deciding when to collect the perm gen, an issue that will be addressed in the near future.

Reviewed-by: jmasa
2008-03-16 21:57:25 -07:00
Jon Masamitsu
6c0c606249 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
Default values set by cms ergonomics are set with FLAG_SET_DEFAULT so down stream the values look like the default values and affect how later parameters are set.  Set these values with FLAG_SET_ERGO instead and adjust how later parameters are interpreted.

Reviewed-by: iveresov, apetrusenko, pbk, ysr
2008-03-02 16:10:12 -08:00
Y. Srinivas Ramakrishna
a6d8fca876 6668743: CMS: Consolidate block statistics reporting code
Reduce the amount of related code replication and improve pretty printing.

Reviewed-by: jmasa
2008-02-29 14:42:56 -08:00
Jon Masamitsu
63f1de52fc 6362677: Change parallel GC collector default number of parallel GC threads
Use the same default number of GC threads as used by ParNewGC and ConcMarkSweepGC (i.e., the 5/8th rule).

Reviewed-by: ysr, tonyp
2008-02-22 17:17:14 -08:00
Y. Srinivas Ramakrishna
74f243990c 6642634: Test nsk/regression/b6186200 crashed with SIGSEGV
Use correct allocation path in expand_and_allocate() so object's mark and p-bits are set as appropriate.

Reviewed-by: jmasa, pbk
2008-02-21 11:03:54 -08:00
Y. Srinivas Ramakrishna
ae065e6290 6621144: CMS: assertion failure "is_cms_thread == Thread::current()->is_ConcurrentGC_thread()"
Take lock conditionally (in asynchronous mode only) when updating the dead-object map.

Reviewed-by: jmasa
2008-02-16 22:41:20 -08:00
Jon Masamitsu
38fdc8ab98 6624765: Guarantee failure "Unexpected dirty card found"
In verification take into account partial coverage of a region by a card and expansion of the card table.

Reviewed-by: ysr, apetrusenko
2008-02-15 07:01:10 -08:00
J. Duke
8153779ad3 Initial load 2007-12-01 00:00:00 +00:00