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8312182: THPs cause huge RSS due to thread start timing issue #103

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tstuefe
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@tstuefe tstuefe commented Aug 25, 2023

Fixes a serious issue that may cause huge RSS bloat and thread startup performance degradation. Applies cleanly.


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

Issues

  • JDK-8312182: THPs cause huge RSS due to thread start timing issue (Bug - P3)
  • JDK-8310687: JDK-8303215 is incomplete (Bug - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk21u.git pull/103/head:pull/103
$ git checkout pull/103

Update a local copy of the PR:
$ git checkout pull/103
$ git pull https://git.openjdk.org/jdk21u.git pull/103/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 103

View PR using the GUI difftool:
$ git pr show -t 103

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk21u/pull/103.diff

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bridgekeeper bot commented Aug 25, 2023

👋 Welcome back stuefe! 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 openjdk bot changed the title Backport 84b325b844c08809448a9c073a11443d9e3c3f8e 8312182: THPs cause huge RSS due to thread start timing issue Aug 25, 2023
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openjdk bot commented Aug 25, 2023

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

@tstuefe tstuefe marked this pull request as ready for review August 26, 2023 06:02
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openjdk bot commented Aug 26, 2023

@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:

8312182: THPs cause huge RSS due to thread start timing issue
8310687: JDK-8303215 is incomplete

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 openjdk bot added ready Pull request is ready to be integrated rfr Pull request is ready for review labels Aug 26, 2023
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mlbridge bot commented Aug 26, 2023

Webrevs

@tstuefe
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tstuefe commented Aug 28, 2023

Got push approval. Tests clean.

/integrate

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openjdk bot commented Aug 28, 2023

Going to push as commit 4cca633.
Since your change was applied there has been 1 commit pushed to the master branch:

  • 89234bc: 8303815: Improve Metaspace test speed

Your commit was automatically rebased without conflicts.

@openjdk openjdk bot added the integrated Pull request has been integrated label Aug 28, 2023
@openjdk openjdk bot closed this Aug 28, 2023
@openjdk openjdk bot removed ready Pull request is ready to be integrated rfr Pull request is ready for review labels Aug 28, 2023
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openjdk bot commented Aug 28, 2023

@tstuefe Pushed as commit 4cca633.

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

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