8315774: Enable parallelism in vmTestbase/gc/g1/unloading tests

[cost0much]

Clean backport to make vmTestbase/gc/g1/unloading tests parallel. Passes GHA and vmTestbase/gc/g1/unloading tests.

time make run-test TEST="vmTestbase/gc/g1/unloading
Before:
1220.85s user 109.96s system 53% cpu 41:28.83 total
After:
1240.52s user 89.00s system 707% cpu 3:07.93 total

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8315774 needs maintainer approval

Issue

• JDK-8315774: Enable parallelism in vmTestbase/gc/g1/unloading tests (Enhancement - P4 - Approved)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk11u-dev.git pull/3044/head:pull/3044
$ git checkout pull/3044

Update a local copy of the PR:
$ git checkout pull/3044
$ git pull https://git.openjdk.org/jdk11u-dev.git pull/3044/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 3044

View PR using the GUI difftool:
$ git pr show -t 3044

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk11u-dev/pull/3044.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back cost0much! 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]

@cost0much This change now passes all automated pre-integration checks.

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

8315774: Enable parallelism in vmTestbase/gc/g1/unloading tests

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 24 new commits pushed to the master branch:

• 594efb1: 8322920: Some ProcessTools.execute* functions are declared to throw Throwable
• 098d324: 8231943: ZGC: Enable serviceability/dcmd/gc/RunGCTest
• 694f561: 8247362: HeapDumpCompressedTest.java#id0 fails due to "Multiple garbage collectors selected"
• ... and 21 more: https://git.openjdk.org/jdk11u-dev/compare/17ebc3cf145a647c2eac6e1ed253989075f88c05...master

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.

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➡️ To flag this PR as ready for integration with the above commit message, type /integrate in a new comment. (Afterwards, your sponsor types /sponsor in a new comment to perform the integration).

[openjdk]

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

[openjdk]

⚠️ @cost0much 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.

[cost0much]

/approval request Makes vmTestbase/gc/g1/unloading tests parallel. Clean backport. Passes GHA and vmTestbase/gc/g1/unloading tests. Risk is low: test code only and no change to tests themself.

[openjdk]

@cost0much
8315774: The approval request has been created successfully.

[mlbridge]

Webrevs

• 00: Full (dd2d76cb)

[bridgekeeper]

@cost0much This pull request has been inactive for more than 4 weeks and will be automatically closed if another 4 weeks passes without any activity. To avoid this, simply issue a /touch or /keepalive command to the pull request. Feel free to ask for assistance if you need help with progressing this pull request towards integration!

[cost0much]

/keepalive

[openjdk]

@cost0much The pull request is being re-evaluated and the inactivity timeout has been reset.

[bridgekeeper]

@cost0much This pull request has been inactive for more than 4 weeks and will be automatically closed if another 4 weeks passes without any activity. To avoid this, simply issue a /touch or /keepalive command to the pull request. Feel free to ask for assistance if you need help with progressing this pull request towards integration!

[cost0much]

/integrate

[openjdk]

@cost0much
Your change (at version dd2d76c) is now ready to be sponsored by a Committer.

[shipilev]

/sponsor

[openjdk]

Going to push as commit b604657.
Since your change was applied there have been 24 commits pushed to the master branch:

• 594efb1: 8322920: Some ProcessTools.execute* functions are declared to throw Throwable
• 098d324: 8231943: ZGC: Enable serviceability/dcmd/gc/RunGCTest
• 694f561: 8247362: HeapDumpCompressedTest.java#id0 fails due to "Multiple garbage collectors selected"
• ... and 21 more: https://git.openjdk.org/jdk11u-dev/compare/17ebc3cf145a647c2eac6e1ed253989075f88c05...master

Your commit was automatically rebased without conflicts.

[openjdk]

@shipilev @cost0much Pushed as commit b604657.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.