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@dchuyko dchuyko commented Jan 20, 2022

As mentioned in the original review MD5 can't be considered a secure hash. But it is still widely used as a lightweight generic hash function, and that's true not only for a legacy software. It is in fact not as lightweight as expected, e.g. hardware accelerated SHA-1 and SHA-256 work much faster on N1. We can sweeten the pill at least for the latest LTS release by 25-30% acceleration with this change.

Original patch applies almost cleanly. There was a minor fuzz, and "code_size2 = 45000" increase had to be re-applied manually.

Micro-benchmark results in openjdk.bench.javax.crypto.full.MessageDigestBench on Graviton 2 show improvements identical to original numbers on Altra.

Testing: tier1, tier2, test/hotspot/jtreg/compiler/intrinsics/sha (aarch64)


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👋 Welcome back dchuyko! 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 088b244ec6d9393a1fcd2233fa5b4cf46f9ae0dd 8251216: Implement MD5 intrinsics on AArch64 Jan 20, 2022
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This backport pull request has now been updated with issue from the original commit.

@openjdk openjdk bot added backport rfr Pull request is ready for review labels Jan 20, 2022
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mlbridge bot commented Jan 20, 2022

Webrevs

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Lgtm.

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openjdk bot commented Jan 20, 2022

@dchuyko 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:

8251216: Implement MD5 intrinsics on AArch64

Reviewed-by: phh, luhenry

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 137 new commits pushed to the master branch:

  • a93e5ef: 8275608: runtime/Metaspace/elastic/TestMetaspaceAllocationMT2 too slow
  • 096c31c: 8276057: Update JMH devkit to 1.33
  • 0cc9d30: 8275082: Update XML Security for Java to 2.3.0
  • 3d6f331: 8177814: jdk/editpad is not in jdk TEST.groups
  • 0a1419c: 8253197: vmTestbase/nsk/jvmti/StopThread/stopthrd007/TestDescription.java fails with "ERROR: DebuggeeSleepingThread: ThreadDeath lost"
  • 59d39ef: 8236505: Mark jdk/editpad/EditPadTest.java as @headful
  • 28dcaf3: 8272553: several hotspot runtime/CommandLine tests don't check exit code
  • 6315ce3: 8275687: runtime/CommandLine/PrintTouchedMethods test shouldn't catch RuntimeException
  • 25a418d: 8278344: sun/security/pkcs12/KeytoolOpensslInteropTest.java test fails because of different openssl output
  • 55fb592: 8273972: Multi-core choke point in CMM engine (LCMSTransform.doTransform)
  • ... and 127 more: https://git.openjdk.java.net/jdk17u-dev/compare/dcd98215f257f4e373dd58e0daf0013be2c53850...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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@openjdk openjdk bot added the ready Pull request is ready to be integrated label Jan 20, 2022
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It'd be a good idea to configure pre-submit testing.

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dchuyko commented Jan 26, 2022

/integrate

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Your change (at version c8233c4) is now ready to be sponsored by a Committer.

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/sponsor

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openjdk bot commented Jan 26, 2022

Going to push as commit 49cf332.
Since your change was applied there have been 138 commits pushed to the master branch:

  • 9378f26: 8278241: Implement JVM SpinPause on linux-aarch64
  • a93e5ef: 8275608: runtime/Metaspace/elastic/TestMetaspaceAllocationMT2 too slow
  • 096c31c: 8276057: Update JMH devkit to 1.33
  • 0cc9d30: 8275082: Update XML Security for Java to 2.3.0
  • 3d6f331: 8177814: jdk/editpad is not in jdk TEST.groups
  • 0a1419c: 8253197: vmTestbase/nsk/jvmti/StopThread/stopthrd007/TestDescription.java fails with "ERROR: DebuggeeSleepingThread: ThreadDeath lost"
  • 59d39ef: 8236505: Mark jdk/editpad/EditPadTest.java as @headful
  • 28dcaf3: 8272553: several hotspot runtime/CommandLine tests don't check exit code
  • 6315ce3: 8275687: runtime/CommandLine/PrintTouchedMethods test shouldn't catch RuntimeException
  • 25a418d: 8278344: sun/security/pkcs12/KeytoolOpensslInteropTest.java test fails because of different openssl output
  • ... and 128 more: https://git.openjdk.java.net/jdk17u-dev/compare/dcd98215f257f4e373dd58e0daf0013be2c53850...master

Your commit was automatically rebased without conflicts.

@openjdk openjdk bot added the integrated Pull request has been integrated label Jan 26, 2022
@openjdk openjdk bot closed this Jan 26, 2022
@openjdk openjdk bot removed ready Pull request is ready to be integrated rfr Pull request is ready for review sponsor Pull request is ready to be sponsored labels Jan 26, 2022
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openjdk bot commented Jan 26, 2022

@phohensee @dchuyko Pushed as commit 49cf332.

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

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