8272651: G1 heap region info print order changed by JDK-8269914

[GoeLin]

I backport this as prerequisite for 8291753 as proposed before in #1900.
The backport has been tested by releaseing it in SapMachine in 17.0.10. This patch here is identical to the one in SapMachine. It will go to 17.0.12 giving enough time to settle.

Also, this will bring G1 code of 17 closer to head probably simplifying further backports.

src/hotspot/share/gc/g1/g1CollectedHeap.cpp

Some lines removed are not in 17:

• set_young_collection_default_active_worker_threads();
  some later:
• G1YoungGCNotifyPauseMark npm;

These are added again a bit further down.

As adding them would modify the behaviour, I only added
them uncommented.

test/hotspot/jtreg/gc/g1/TestEagerReclaimHumongousRegionsLog.java
The file already has the correct coding. Obviously these lines
were changed after 17 and later reverted again.

---

Progress

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• JDK-8272651 needs maintainer approval
• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8272651: G1 heap region info print order changed by JDK-8269914 (Bug - P3 - Approved)

Reviewers

• Richard Reingruber (@reinrich - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk17u-dev.git pull/2261/head:pull/2261
$ git checkout pull/2261

Update a local copy of the PR:
$ git checkout pull/2261
$ git pull https://git.openjdk.org/jdk17u-dev.git pull/2261/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 2261

View PR using the GUI difftool:
$ git pr show -t 2261

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk17u-dev/pull/2261.diff

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[bridgekeeper]

👋 Welcome back goetz! 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]

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

[mlbridge]

Webrevs

• 00: Full (c1c4b29c)

[GoeLin]

GHA failure: Well known Risk-V build issue. Unrelated.

[openjdk]

⚠️ @GoeLin This change is now ready for you to apply for maintainer approval. This can be done directly in each associated issue or by using the /approval command.

[openjdk]

@GoeLin 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:

8272651: G1 heap region info print order changed by JDK-8269914

Reviewed-by: rrich

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At the time when this comment was updated there had been 4 new commits pushed to the master branch:

• f3e90af: 8324824: AArch64: Detect Ampere-1B core and update default options for Ampere CPUs
• bfe8974: 8323519: Add applications/ctw/modules to Hotspot tiered testing
• 3add2e3: 8272903: Missing license header in ArenaAllocator.java
• ab602af: 8323210: Update the usage of cmsFLAGS_COPY_ALPHA

Please see this link for an up-to-date comparison between the source branch of this pull request and the master branch.
As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this 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.

[GoeLin]

/integrate

[openjdk]

Going to push as commit 158f91a.
Since your change was applied there have been 4 commits pushed to the master branch:

• f3e90af: 8324824: AArch64: Detect Ampere-1B core and update default options for Ampere CPUs
• bfe8974: 8323519: Add applications/ctw/modules to Hotspot tiered testing
• 3add2e3: 8272903: Missing license header in ArenaAllocator.java
• ab602af: 8323210: Update the usage of cmsFLAGS_COPY_ALPHA

Your commit was automatically rebased without conflicts.

[openjdk]

@GoeLin Pushed as commit 158f91a.

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