RFR: 8327286: Obsolete unused NUMAPageScanRate product option [v3]

Thomas Schatzl tschatzl at openjdk.org
Wed Mar 6 11:53:18 UTC 2024


> Hi all,
> 
>   please review making the flag `NUMAPageScanRate` obsolete.
> 
> This option controlled some fairly esoteric performance capability for Solaris; Solaris support has been removed in JDK 15, and the last remaining reference to the option (which was a no-op) in JDK 22.
> 
> Please also look at the CSR.
> 
> Testing: local compilation, grepping sources, starting the VM with that option to see that the message shows up.
> 
> Thanks,
>   Thomas

Thomas Schatzl has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:

 - Merge branch 'master' into submit/8327286-obsolete-NUMAPageScanRate
 - 8327286
   
   Hi all,
   
     please review making the flag `NUMAPageScanRate` obsolete.
   
   This option controlled some fairly esoteric performance capability for Solaris; Solaris support has been removed in JDK 15, and the last remaining reference to the option (which was a no-op) in JDK 22.
   
   Testing: local compilation, grepping sources, starting the VM with that option to see that the message shows up.
   
   Thanks,
     Thomas
 - 8327239
   
   Hi all,
   
     please review this change to obsolete the unused flag GCLockerEdenExpansionPercent. Please also review the CSR.
   
   Testing: local compilation, grepping sources for occurrences
   
   Thanks,
     Thomas

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/18118/files
  - new: https://git.openjdk.org/jdk/pull/18118/files/1d14971d..82d652bd

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18118&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18118&range=01-02

  Stats: 69412 lines in 636 files changed: 1330 ins; 66986 del; 1096 mod
  Patch: https://git.openjdk.org/jdk/pull/18118.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18118/head:pull/18118

PR: https://git.openjdk.org/jdk/pull/18118


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