RFR: 8361076: Add benchmark for ImageReader in preparation for Valhalla changes [v3]
David Beaumont
duke at openjdk.org
Mon Jun 30 15:08:25 UTC 2025
> Initial benchmark to capture at least some comparative measures of ImageReader performance.
>
> Current results on my laptop:
>
> Benchmark Mode Cnt Score Error Units
> NewImageBenchmark.warmCache_CountAllNodes avgt 5 0.785 ± 0.140 ms/op
> NewImageBenchmark.coldStart_CountOnly ss 5 34.051 ± 17.662 ms/op
> NewImageBenchmark.coldStart_InitAndCount ss 5 31.006 ± 9.674 ms/op
> NewImageBenchmark.coldStart_LoadJavacInitClasses ss 5 3.752 ± 6.873 ms/op
>
> The upcoming changes to ImageReader should show significant improvements to these results.
David Beaumont has updated the pull request incrementally with one additional commit since the last revision:
Some tidying up relating to the state objects.
-------------
Changes:
- all: https://git.openjdk.org/jdk/pull/26044/files
- new: https://git.openjdk.org/jdk/pull/26044/files/489d720a..089b68e2
Webrevs:
- full: https://webrevs.openjdk.org/?repo=jdk&pr=26044&range=02
- incr: https://webrevs.openjdk.org/?repo=jdk&pr=26044&range=01-02
Stats: 26 lines in 1 file changed: 17 ins; 5 del; 4 mod
Patch: https://git.openjdk.org/jdk/pull/26044.diff
Fetch: git fetch https://git.openjdk.org/jdk.git pull/26044/head:pull/26044
PR: https://git.openjdk.org/jdk/pull/26044
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