8290894: Reduce runtime of vm.lang microbenchmarks

[ericcaspole]

Adds fork and iterations controls. This reduces the runtime from 4h26m to about 21m and still seems stable enough for weekly testing.

---

Progress

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Issue

• JDK-8290894: Reduce runtime of vm.lang microbenchmarks

Reviewers

• Roger Riggs (@RogerRiggs - Reviewer)

Reviewing

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Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk pull/9619/head:pull/9619
$ git checkout pull/9619

Update a local copy of the PR:
$ git checkout pull/9619
$ git pull https://git.openjdk.org/jdk pull/9619/head

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Checkout this PR locally:
$ git pr checkout 9619

View PR using the GUI difftool:
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Download this PR as a diff file:
https://git.openjdk.org/jdk/pull/9619.diff

[bridgekeeper]

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[openjdk]

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[mlbridge]

Webrevs

• 01: Full - Incremental (08449dd5)
• 00: Full (373da451)

[RogerRiggs]

LGTM

[openjdk]

@ericcaspole 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:

8290894: Reduce runtime of vm.lang microbenchmarks

Reviewed-by: rriggs

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:

• 1451642: 8244976: vmTestbase/nsk/jdi/Event/request/request001.java doesn' initialize eName
• 8159a1a: 8290706: Remove the support for inline contiguous allocations
• 7318b22: 8289551: Conversions between bit representations of half precision values and floats
• 2ae8e31: 8290669: Fix wording in sun.security.ec
• 8939095: 8289996: Fix array range check hoisting for some scaled loop iv
• da9cc5c: 8290806: Only add eager reclaim task to G1 post evacuate tasks if there were candidates
• 330adc0: 8290969: DumpClassListCLDClosure incorrectly uses ResizeableResourceHashtable
• 28bbdc5: 8290972: ProblemList java/lang/ProcessBuilder/PipelineLeaksFD.java
• a6faf5d: 8290485: [vector] REVERSE_BYTES for byte type should not emit any instructions
• 0ca5cb1: 8290834: Improve potentially confusing documentation on collection of profiling information
• ... and 1 more: https://git.openjdk.org/jdk/compare/0ca74f538e1a8a351cc0631c5fe397a74653ce6f...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.

[ericcaspole]

Thanks Roger!

[ericcaspole]

/integrate

[openjdk]

Going to push as commit f0f78a9.
Since your change was applied there have been 11 commits pushed to the master branch:

• 1451642: 8244976: vmTestbase/nsk/jdi/Event/request/request001.java doesn' initialize eName
• 8159a1a: 8290706: Remove the support for inline contiguous allocations
• 7318b22: 8289551: Conversions between bit representations of half precision values and floats
• 2ae8e31: 8290669: Fix wording in sun.security.ec
• 8939095: 8289996: Fix array range check hoisting for some scaled loop iv
• da9cc5c: 8290806: Only add eager reclaim task to G1 post evacuate tasks if there were candidates
• 330adc0: 8290969: DumpClassListCLDClosure incorrectly uses ResizeableResourceHashtable
• 28bbdc5: 8290972: ProblemList java/lang/ProcessBuilder/PipelineLeaksFD.java
• a6faf5d: 8290485: [vector] REVERSE_BYTES for byte type should not emit any instructions
• 0ca5cb1: 8290834: Improve potentially confusing documentation on collection of profiling information
• ... and 1 more: https://git.openjdk.org/jdk/compare/0ca74f538e1a8a351cc0631c5fe397a74653ce6f...master

Your commit was automatically rebased without conflicts.

[openjdk]

@ericcaspole Pushed as commit f0f78a9.

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