JDK-8303815: Improve Metaspace test speed

[tstuefe]

Small adjustments that cut down time needed for Metaspace tests:

gtests: 22 seconds -> 6 seconds
elastic metaspace jtreg tests: 36 seconds -> 15 seconds

For the jtreg tests, I preserve the option to execute them full time as manual tests

---

Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8303815: Improve Metaspace test speed (Enhancement - P4)

Reviewers

• Stefan Karlsson (@stefank - Reviewer)
• David Holmes (@dholmes-ora - Reviewer)

Reviewing

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$ git fetch https://git.openjdk.org/jdk.git pull/15324/head:pull/15324
$ git checkout pull/15324

Update a local copy of the PR:
$ git checkout pull/15324
$ git pull https://git.openjdk.org/jdk.git pull/15324/head

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$ git pr checkout 15324

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https://git.openjdk.org/jdk/pull/15324.diff

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[openjdk]

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[mlbridge]

Webrevs

• 00: Full (e9760d9d)

[tstuefe]

Friendly ping. This is quite trivial.

[openjdk]

@tstuefe 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:

8303815: Improve Metaspace test speed

Reviewed-by: stefank, dholmes

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 81 new commits pushed to the master branch:

• 3699666: 8313319: [linux] mmap should use MAP_FIXED_NOREPLACE if available
• 3285a1e: 8314555: Build with mawk fails on Windows
• 4a50e87: 8303852: current_stack_region() gets called twice unnecessarily
• c077be4: 8314694: Separate checked_cast from globalDefinitions.hpp
• 68815d5: 8314734: Remove unused field TypeVariableImpl.EMPTY_ANNOTATION_ARRAY
• 57a322d: 8308042: [macos] Developer ID Application Certificate not picked up by jpackage if it contains UNICODE characters
• 38a9edf: 8314679: SA fails to properly attach to JVM after having just detached from a different JVM
• 2c60cad: 8280743: HSDB "Monitor Cache Dump" command might throw NPE
• 9435cd1: 8175874: Update Security.insertProviderAt to specify behavior when requested position is out of range.
• dbb788f: 8294535: Add screen capture functionality to PassFailJFrame
• ... and 71 more: https://git.openjdk.org/jdk/compare/b78f5a1068224d8b3cfe9e8fb38307ca07de741d...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.

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

[dholmes-ora]

Seems fine. Thanks.

[tstuefe]

Thanks @stefank and @dholmes-ora

/integrate

[openjdk]

Going to push as commit de0e46c.
Since your change was applied there have been 81 commits pushed to the master branch:

• 3699666: 8313319: [linux] mmap should use MAP_FIXED_NOREPLACE if available
• 3285a1e: 8314555: Build with mawk fails on Windows
• 4a50e87: 8303852: current_stack_region() gets called twice unnecessarily
• c077be4: 8314694: Separate checked_cast from globalDefinitions.hpp
• 68815d5: 8314734: Remove unused field TypeVariableImpl.EMPTY_ANNOTATION_ARRAY
• 57a322d: 8308042: [macos] Developer ID Application Certificate not picked up by jpackage if it contains UNICODE characters
• 38a9edf: 8314679: SA fails to properly attach to JVM after having just detached from a different JVM
• 2c60cad: 8280743: HSDB "Monitor Cache Dump" command might throw NPE
• 9435cd1: 8175874: Update Security.insertProviderAt to specify behavior when requested position is out of range.
• dbb788f: 8294535: Add screen capture functionality to PassFailJFrame
• ... and 71 more: https://git.openjdk.org/jdk/compare/b78f5a1068224d8b3cfe9e8fb38307ca07de741d...master

Your commit was automatically rebased without conflicts.

[openjdk]

@tstuefe Pushed as commit de0e46c.

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