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Type: Bug
Resolution: Fixed
Priority: P4
Fix Version/s: 9
Affects Version/s: 8u40, 9
Component/s: hotspot
Labels:
- gc-g1
- gc-performance

Subcomponent:
gc
Resolved In Build:
b45

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-8083164	emb-9	Thomas Schatzl	P4	Resolved	Fixed	team
JDK-8086448	8u65	Thomas Schatzl	P4	Resolved	Fixed	b01
JDK-8076063	8u60	Thomas Schatzl	P4	Resolved	Fixed	b09
JDK-8137653	emb-8u65	Unassigned	P4	Resolved	Fixed	b01
JDK-8077463	emb-8u60	Thomas Schatzl	P4	Resolved	Fixed	team

Object copy times regress with SPECjbb2005 (and any other workload that mostly copies around data in the young generation) by a few percent.

JDK-8031323 and ~~JDK-8057536~~ seem to be the problem.

Change copy_to_survivor_space() and friends to fix this.

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00-remove-mark-load.patch
4 kB
2014-10-09 04:31
01-split-allocation.diff
5 kB
2014-10-09 04:31

backported by

JDK-8076063 Object copy time regressions after JDK-8031323 and JDK-8057536

Resolved

JDK-8077463 Object copy time regressions after JDK-8031323 and JDK-8057536

Resolved

JDK-8083164 Object copy time regressions after JDK-8031323 and JDK-8057536

Resolved

JDK-8086448 Object copy time regressions after JDK-8031323 and JDK-8057536

Resolved

JDK-8137653 Object copy time regressions after JDK-8031323 and JDK-8057536

Resolved

duplicates

JDK-8052167 G1 wrongly counts PLABs not allocated in the originally intended allocation "generation"

Closed

JDK-7163196 G1: Use two arrays for the fast cset test, put region type information in the arrays

Closed

relates to

JDK-8078669 G1 applies SurvivorAlignmentInBytes to both survivor and old gen

Resolved

JDK-8067920 Rename InCSetState to something more understandable

Closed

JDK-8068036 assert(is_available(index)) failed in G1 cset

Resolved

JDK-8057536 Refactor G1 to allow context specific allocations

Resolved

(2 duplicates, 4 relates to)

Assignee:: Unassigned

Reporter:: Thomas Schatzl

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Created:: 2014-10-09 04:05

Updated:: 2018-03-28 13:54

Resolved:: 2014-12-19 02:48

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