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8328168: Epsilon: Premature OOM when allocating object larger than uncommitted heap size #2430

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shipilev
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@shipilev shipilev commented Apr 26, 2024

Fixes Epsilon performance problem, corner-case with clear test.

Additional testing:

  • MacOS AArch64 server fastdebug, new regression test fails without the patch, passes with it
  • MacOS AArch64 server fastdebug, gc/epsilon

Progress

  • Change must not contain extraneous whitespace
  • Commit message must refer to an issue
  • JDK-8328168 needs maintainer approval

Issue

  • JDK-8328168: Epsilon: Premature OOM when allocating object larger than uncommitted heap size (Bug - P2 - Approved)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk17u-dev.git pull/2430/head:pull/2430
$ git checkout pull/2430

Update a local copy of the PR:
$ git checkout pull/2430
$ git pull https://git.openjdk.org/jdk17u-dev.git pull/2430/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 2430

View PR using the GUI difftool:
$ git pr show -t 2430

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk17u-dev/pull/2430.diff

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@shipilev shipilev marked this pull request as ready for review April 26, 2024 09:17
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/approval request Fixes Epsilon performance problem, corner-case with clear test. Applies cleanly. New regression test fails without the fix, passes with it. Other Epsilon tests pass as well. There is no bugtail after a month in mainline.

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bridgekeeper bot commented Apr 26, 2024

👋 Welcome back shade! 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.

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openjdk bot commented Apr 26, 2024

@shipilev 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:

8328168: Epsilon: Premature OOM when allocating object larger than uncommitted heap size

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 11 new commits pushed to the master branch:

  • cb15a15: 8330156: RISC-V: Range check auipc + signed 12 imm instruction
  • e9a088d: 8331113: createJMHBundle.sh support configurable maven repo mirror
  • aea8e4a: 8264322: Generate CDS archive when creating custom JDK image
  • b7c7ea0: 8328194: Add a test to check default rendering engine
  • 032e87a: 8327136: javax/management/remote/mandatory/notif/NotifReconnectDeadlockTest.java fails on libgraal
  • 4cec951: 8315889: Open source several Swing HTMLDocument related tests
  • 52d1f0c: 8329013: StackOverflowError when starting Apache Tomcat with signed jar
  • 9682314: 8318809: java/util/concurrent/ConcurrentLinkedQueue/WhiteBox.java shows intermittent failures on linux ppc64le and aarch64
  • 71630eb: 8327989: java/net/httpclient/ManyRequest.java should not use "localhost" in URIs
  • e51f176: 8324733: [macos14] Problem list tests which fail due to macOS bug described in JDK-8322653
  • ... and 1 more: https://git.openjdk.org/jdk17u-dev/compare/54e012001e593596c12b117af766e1adb0c03fef...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.

@openjdk openjdk bot changed the title Backport 7baec6622254fc21e315b974a213605a7605daac 8328168: Epsilon: Premature OOM when allocating object larger than uncommitted heap size Apr 26, 2024
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openjdk bot commented Apr 26, 2024

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

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openjdk bot commented Apr 26, 2024

⚠️ @shipilev 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 openjdk bot added the rfr Pull request is ready for review label Apr 26, 2024
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openjdk bot commented Apr 26, 2024

@shipilev
8328168: The approval request has been created successfully.

@openjdk openjdk bot added the approval label Apr 26, 2024
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mlbridge bot commented Apr 26, 2024

Webrevs

@openjdk openjdk bot added ready Pull request is ready to be integrated and removed approval labels Apr 29, 2024
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/integrate

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openjdk bot commented Apr 29, 2024

Going to push as commit 51502b9.
Since your change was applied there have been 11 commits pushed to the master branch:

  • cb15a15: 8330156: RISC-V: Range check auipc + signed 12 imm instruction
  • e9a088d: 8331113: createJMHBundle.sh support configurable maven repo mirror
  • aea8e4a: 8264322: Generate CDS archive when creating custom JDK image
  • b7c7ea0: 8328194: Add a test to check default rendering engine
  • 032e87a: 8327136: javax/management/remote/mandatory/notif/NotifReconnectDeadlockTest.java fails on libgraal
  • 4cec951: 8315889: Open source several Swing HTMLDocument related tests
  • 52d1f0c: 8329013: StackOverflowError when starting Apache Tomcat with signed jar
  • 9682314: 8318809: java/util/concurrent/ConcurrentLinkedQueue/WhiteBox.java shows intermittent failures on linux ppc64le and aarch64
  • 71630eb: 8327989: java/net/httpclient/ManyRequest.java should not use "localhost" in URIs
  • e51f176: 8324733: [macos14] Problem list tests which fail due to macOS bug described in JDK-8322653
  • ... and 1 more: https://git.openjdk.org/jdk17u-dev/compare/54e012001e593596c12b117af766e1adb0c03fef...master

Your commit was automatically rebased without conflicts.

@openjdk openjdk bot added the integrated Pull request has been integrated label Apr 29, 2024
@openjdk openjdk bot closed this Apr 29, 2024
@openjdk openjdk bot removed ready Pull request is ready to be integrated rfr Pull request is ready for review labels Apr 29, 2024
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openjdk bot commented Apr 29, 2024

@shipilev Pushed as commit 51502b9.

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

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