RFR: 8299234: JMX Repository.query performance [v4]
Alexey Bakhtin
abakhtin at openjdk.org
Mon Jan 23 20:25:17 UTC 2023
> Please find a patch to improve JMX Repository.query performance
>
> Using ObjectName.apply() allows significantly decrease memory usage and the number of GC cycles:
> Before:
>
> $ java test 1000000 1000000
> Test PASSED in 8943169791 ns.
> GC: G1 Young Generation getCollectionCount()=177 getCollectionTime()=118
>
>
> After:
>
> $ java test 1000000 1000000
> Test PASSED in 4808213917 ns.
> GC: G1 Young Generation getCollectionCount()=88 getCollectionTime()=53
>
> Private ObjectName.matchDomains() method is also updated to minimize unnecessary memory allocation.
>
> All javax/management jtreg tests passed successfully.
Alexey Bakhtin has updated the pull request incrementally with one additional commit since the last revision:
Revert changes in the ObjectName
-------------
Changes:
- all: https://git.openjdk.org/jdk/pull/11758/files
- new: https://git.openjdk.org/jdk/pull/11758/files/5ac859ae..594dfa5b
Webrevs:
- full: https://webrevs.openjdk.org/?repo=jdk&pr=11758&range=03
- incr: https://webrevs.openjdk.org/?repo=jdk&pr=11758&range=02-03
Stats: 5 lines in 2 files changed: 0 ins; 2 del; 3 mod
Patch: https://git.openjdk.org/jdk/pull/11758.diff
Fetch: git fetch https://git.openjdk.org/jdk pull/11758/head:pull/11758
PR: https://git.openjdk.org/jdk/pull/11758
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