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Type: Enhancement
Resolution: Fixed
Priority: P4
Fix Version/s: hs23
Affects Version/s: 7
Component/s: hotspot
Labels:
- gc-g1
- gc-performance

Subcomponent:
gc
Resolved In Build:
b02
CPU:

generic
OS:

generic
Verification:
Not verified

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-2216136	8	Bengt Rutisson	P4	Resolved	Fixed	b10
JDK-2219688	7u4	Bengt Rutisson	P4	Closed	Fixed	b01

ReduceInitialCardMarks created instability issues in G1 (6920109: G1: lingering instabilities with ReduceInitialCardMarks) because of a defect in G1 that allowed TLABs to be allocated into the old generation (see 6974966: G1: unnecessary direct-to-old allocations). The fix for 6974966 totally eliminated direct-to-old allocations (TLAB or non-TLAB allocations) so we should re-enable ReduceInitialCardMarks for G1 as the main issue that caused the instabilities should be been eliminated.

backported by

JDK-2216136 G1: re-enable ReduceInitialCardMarks for G1

Resolved

JDK-2219688 G1: re-enable ReduceInitialCardMarks for G1

Closed

relates to

JDK-6974966 G1: unnecessary direct-to-old allocations

Closed

JDK-6920109 G1: lingering instabilities with ReduceInitialCardMarks

Closed

Assignee:: Bengt Rutisson (Inactive)

Reporter:: Tony Printezis

Votes:: 0 Vote for this issue

Watchers:: 1 Start watching this issue

Created:: 2010-12-09 10:40

Updated:: 2013-09-18 06:20

Resolved:: 2012-01-23 05:30

Imported:: 17/Sep/12 3:42 AM

Indexed:: 19/Jul/12 7:39 PM

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