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Type: Enhancement
Resolution: Fixed
Priority: P4
Fix Version/s: 19
Affects Version/s: 19
Component/s: hotspot
Labels:
- gc-g1
- gc-g1-pinned-regions

Subcomponent:
gc
Resolved In Build:
b04

This is to get information about the pause time distribution (prepare(copy, sorting, …) , process (iterate) and cleanup) and region/objects/size statistics when processing evacuation failure objects in “Remove Self Forwards”, this information will be helpful when optimize the evacuation failure processing subsequently, and will also be helpful for users to analyze and troubleshoot in the future.

This is one of the follow-up tasks discussed at :
- https://github.com/openjdk/jdk/pull/6627#pullrequestreview-821445879, and
- https://github.com/openjdk/jdk/pull/6627#issuecomment-985478359

relates to

JDK-8278284 G1: Log per region statistics of evacuation failure

Open

JDK-8278286 G1: Add an additional logging category such as "gc+evacfail" to switch on the most detailed statistics

Open

JDK-8278287 G1: Extend the gc+heap=debug messages to also show the number of failed regions of that category

Open

JDK-8278285 G1: Distinguish logging between the real evac failure and region pinning

Closed

JDK-8278283 G1: Log further detailed statistics of evacuation failure

Open

links to

Commit openjdk/jdk/93c7d90c

Review openjdk/jdk/6763

Review openjdk/jdk/6860

(3 links to)

Assignee:: Hamlin Li

Reporter:: Hamlin Li

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Created:: 2021-12-05 23:31

Updated:: 2023-04-18 08:44

Resolved:: 2022-01-04 03:57

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