8267304: Bump global JTReg memory limit to 768m

[shipilev]

See the rationale in the RFE.

Additional testing:

• Linux x86_64 fastdebug java/time/format/TestZoneTextPrinterParser.java with aggressive GC options
• Linux x86_64 fastdebug jdk:tier1
• Linux x86_64 fastdebug tier1
• Linux x86_64 fastdebug tier2
• Linux x86_32 fastdebug tier1
• Linux x86_32 fastdebug tier2

---

Progress

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

Issue

• JDK-8267304: Bump global JTReg memory limit to 768m

Reviewers

• Leonid Mesnik (@lmesnik - Committer)
• Igor Ignatyev (@iignatev - Reviewer)

Reviewing

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$ git checkout pull/4087

Update a local copy of the PR:
$ git checkout pull/4087
$ git pull https://git.openjdk.java.net/jdk pull/4087/head

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Checkout this PR locally:
$ git pr checkout 4087

View PR using the GUI difftool:
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Download this PR as a diff file:
https://git.openjdk.java.net/jdk/pull/4087.diff

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[mlbridge]

Webrevs

• 00: Full (557f78f5)

[lmesnik]

Shouldn't affect VM testing. Fine with core-svc setting.

[iignatev]

LGTM

[openjdk]

@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:

8267304: Bump global JTReg memory limit to 768m

Reviewed-by: lmesnik, iignatyev

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 29 new commits pushed to the master branch:

• b92c5a4: 8265292: [macos_aarch64] java/foreign/TestDowncall.java crashes with SIGBUS
• fadf580: 8262952: [macos_aarch64] os::commit_memory failure
• f8f40ab: 8230486: G1BarrierSetAssembler::g1_write_barrier_post unnecessarily pushes/pops new_val
• 9d168e2: 8266973: Migrate to ClassHierarchyIterator when enumerating subclasses
• 02507bc: 8267166: Remove test file vmTestbase/vm/mlvm/tools/LoadClass.java
• ce88b33: 8266615: C2 incorrectly folds subtype checks involving an interface array
• 894547d: 8266897: com/sun/net/httpserver/FilterTest.java fails intermittently with AssertionError
• da7c846: 8264408: test_oopStorage no longer needs to disable some tests on WIN32
• f6c2891: 8267229: Split runtime/Metaspace/elastic test configurations for better scalability
• b60975d: 8267237: ARM32: bad AD file in matcher.cpp after 8266810
• ... and 19 more: https://git.openjdk.java.net/jdk/compare/f4227879b0504bc4656bd84153b13b04c007aa66...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.

[shipilev]

/integrate

[openjdk]

@shipilev Since your change was applied there have been 49 commits pushed to the master branch:

• e858dd6: 8267361: JavaTokenizer reads octal numbers mistakenly
• 1b93b81: 8267133: jdk/jfr/event/gc/collection/TestG1ParallelPhases.java fails with Not expected phases: RestorePreservedMarks, RemoveSelfForwardingPtr: expected true, was false
• 88b1142: 8267357: build breaks with -Werror option on micro benchmark added for JDK-8256973
• 6ef46ce: 8231672: Simplify the reference processing parallelization framework
• 392f962: 8267151: C2: Don't create dummy Opaque1Node for outmost unswitched IfNode
• 0cf7e57: 8267239: C1: RangeCheckElimination for % operator if divisor is IntConstant
• 2d407e1: 8267293: vmTestbase/vm/mlvm/anonloader/stress/oome/metaspace/Test.java fails when JTREG_JOBS > 25
• 70f6c67: 8233380: CHT: Node allocation and freeing
• 2563a6a: 8266962: Add arch supporting check for "Op_VectorLoadConst" before creating the node
• 4954383: 8267364: Remove mask.incr which is introduced by JDK-8256973
• ... and 39 more: https://git.openjdk.java.net/jdk/compare/f4227879b0504bc4656bd84153b13b04c007aa66...master

Your commit was automatically rebased without conflicts.

Pushed as commit e749f75.

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