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Type: Enhancement
Resolution: Fixed
Priority: P3
Fix Version/s: hs24
Affects Version/s: hs23
Component/s: hotspot
Labels:

Subcomponent:
gc
Resolved In Build:
b55
CPU:

generic
OS:

generic
Verification:
Verified

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-2222999	8	Tony Printezis	P3	Closed	Fixed	b33
JDK-8021732	7u60	Unassigned	P3	Resolved	Fixed	b01
JDK-8021510	7u51	Unassigned	P3	Resolved	Fixed	b01
JDK-8018171	7u45	Tony Printezis	P3	Closed	Fixed	b05
JDK-8002447	7u40	Tony Printezis	P3	Resolved	Fixed	b01
JDK-8016164	7u25	Poonam Bajaj Parhar	P3	Closed	Fixed	b31
JDK-8013640	7u21	Poonam Bajaj Parhar	P3	Closed	Fixed	b31

The heuristics that drive which old regions to collect during mixed GCs and which not, introduced by:

7132029: G1: mixed GC phase lasts for longer than it should

and maybe further fine-tuned by:

7146242: G1: alternative heuristic on deciding which old regions not to collect

introduced several develop -XX flags. It will be good to expose some of them to the users so that they can adjust the "space efficiency" vs. "pause times duration" trade-off to what they feel it's appropriate for them.

We should decide what the minimum number of flags is and make sure their names are reasonable.

backported by

JDK-8002447 G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs

Resolved

JDK-8021510 G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs

Resolved

JDK-8021732 G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs

Resolved

JDK-2222999 G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs

Closed

JDK-8013640 G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs

Closed

JDK-8016164 G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs

Closed

JDK-8018171 G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs

Closed

relates to

JDK-7132029 G1: mixed GC phase lasts for longer than it should

Closed

JDK-7146242 G1: alternative heuristic on deciding which old regions not to collect

Closed

(2 backported by, 2 relates to)

Assignee:: Tony Printezis

Reporter:: Tony Printezis

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Created:: 2012-02-16 08:33

Updated:: 2013-09-18 04:51

Resolved:: 2012-03-31 08:05

Imported:: 17/Sep/12 3:51 AM

Indexed:: 19/Jul/12 7:46 PM

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