JDK-8322098: os::Linux::print_system_memory_info enhance the THP output with /sys/kernel/mm/transparent_hugepage/hpage_pmd_size

[MBaesken]

os::Linux::print_system_memory_info already outputs a number of interesting memory related information, but the hpage_pmd_size is still missing but is already used at other place(s) in the JVM so better add it for completeness to the output.

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Progress

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Issue

• JDK-8322098: os::Linux::print_system_memory_info enhance the THP output with /sys/kernel/mm/transparent_hugepage/hpage_pmd_size (Bug - P4)

Reviewers

• Martin Doerr (@TheRealMDoerr - Reviewer)
• Lutz Schmidt (@RealLucy - Reviewer)

Reviewing

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[bridgekeeper]

👋 Welcome back mbaesken! 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]

@MBaesken The following label will be automatically applied to this pull request:

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[mlbridge]

Webrevs

• 00: Full (1fb44acc)

[TheRealMDoerr]

LGTM.

[openjdk]

@MBaesken 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:

8322098: os::Linux::print_system_memory_info enhance the THP output with /sys/kernel/mm/transparent_hugepage/hpage_pmd_size

Reviewed-by: mdoerr, lucy

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At the time when this comment was updated there had been 1 new commit pushed to the master branch:

• c328f95: 8296787: Unify debug printing format of X.509 cert serial numbers

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[RealLucy]

Looks good.

[MBaesken]

Hi Lutz and Martin, thanks for the reviews !

/integrate

[openjdk]

Going to push as commit b31454e.
Since your change was applied there have been 7 commits pushed to the master branch:

• 0be0775: 8320397: RISC-V: Avoid passing t0 as temp register to MacroAssembler:: cmpxchg_obj_header/cmpxchgptr
• 6dfb812: 8321823: Remove redundant PhaseGVN transform_no_reclaim
• a7dde57: 8322057: Memory leaks in creating jfr symbol array
• 692be57: 8322065: Initial nroff manpage generation for JDK 23
• d02bc87: 8309981: Remove expired flags in JDK 23
• 8b24851: 8321480: ISO 4217 Amendment 176 Update
• c328f95: 8296787: Unify debug printing format of X.509 cert serial numbers

Your commit was automatically rebased without conflicts.

[openjdk]

@MBaesken Pushed as commit b31454e.

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