8339197: GenShen: Adding Generation and Evacuation Information JFR Logging

[kdnilsen]

This pull request contains a backport of commit 662d146d from the openjdk/shenandoah repository.

The commit being backported was authored by Satyen Subramaniam on 4 Sep 2024 and was reviewed by Kelvin Nilsen,
William Kemper and Y. Srinivas Ramakrishna.

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8339197: GenShen: Adding Generation and Evacuation Information JFR Logging (Enhancement - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/shenandoah-jdk21u.git pull/81/head:pull/81
$ git checkout pull/81

Update a local copy of the PR:
$ git checkout pull/81
$ git pull https://git.openjdk.org/shenandoah-jdk21u.git pull/81/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 81

View PR using the GUI difftool:
$ git pr show -t 81

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/shenandoah-jdk21u/pull/81.diff

Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back kdnilsen! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

@kdnilsen This change now passes all automated pre-integration checks.

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

After integration, the commit message for the final commit will be:

8339197: GenShen: Adding Generation and Evacuation Information JFR Logging

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been no new commits pushed to the master branch. If another commit should be pushed before you perform the /integrate command, your PR will be automatically rebased. If you prefer to avoid any potential automatic rebasing, please check the documentation for the /integrate command for further details.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[mlbridge]

Webrevs

• 00: Full (772302b9)

[kdnilsen]

/integrate

[openjdk]

Going to push as commit ef76022.
Since your change was applied there have been 10 commits pushed to the master branch:

• c0b27b2: 8339611: GenShen: Simplify ShenandoahOldHeuristics::trigger_collection_if_fragmented
• fe42b40: 8338717: GenShen: Fix up some assertions
• a38c7c5: 8338620: GenShen: Distinguish between young and old collector in GC configuration
• 3c8cffb: 8338528: GenShen: Cleanup shenandoahHeapRegion
• 77cb7a3: 8338535: GenShen: some style improvements to source code implementation
• cb900e8: 8338477: GenShen: Cleanup generational heap
• fe6aec1: 8338479: GenShen: Detemplatize ShenandoahScanRemembered
• eaffb30: 8338473: GenShen: Cleanup access levels, whitespace, typos and unused code
• 1eee920: 8338420: GenShen: Forward declare card table for Shenandoah barrier set
• 97ca83b: 8338336: GenShen: Cleanup stale TODOs

Your commit was automatically rebased without conflicts.

[openjdk]

@kdnilsen Pushed as commit ef76022.

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