[jdk25u-dev] RFR: 8367271: Add parsing tests to DateFormat JMH benchmark

[duke]

On Wed, 18 Feb 2026 20:11:26 GMT, Roland Mesde <duke at openjdk.org> wrote:

> Backporting JDK-8367271: Add parsing tests to DateFormat JMH benchmark.
> 
> This PR expands DateFormat JMH benchmarks to include parsing tests (previously only had formatting) and added time-related measurements using FULL Locale.ENGLISH patterns.
> 
> For parity with Oracle JDK.
> 
> Ran related tests on linux-x64, linux-aarch64, macos-aarch64 and windows-x64:
> 
> ```./build/*/images/jdk/bin/java -jar build/*/images/test/micro/benchmarks.jar java.text.SimpleDateFormatterBench```
> 
> Results attached:
> 
> [windows-x64-specific-test.log](https://github.com/user-attachments/files/25420101/windows-x64-specific-test.log)
> [macos-aarch64-specific-test.log](https://github.com/user-attachments/files/25420102/macos-aarch64-specific-test.log)
> [linux-x64-specific-test.log](https://github.com/user-attachments/files/25420103/linux-x64-specific-test.log)
> [linux-aarch64-specific-test.log](https://github.com/user-attachments/files/25420104/linux-aarch64-specific-test.log)

@rm-gh-8 
Your change (at version 03c553722b9b77316a95b02494ee8259f6c62371) is now ready to be sponsored by a Committer.

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PR Comment: https://git.openjdk.org/jdk25u-dev/pull/288#issuecomment-3945960537