RFR: 8323079: Regression of -5% to -11% with SPECjvm2008-MonteCarlo after JDK-8319451

Tue Jun 11 18:03:56 UTC 2024

On Tue, 11 Jun 2024 17:35:38 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

>> Thanks, Quan Anh. On second thought, I think it's best to cleanly backout [JDK-8319451](https://bugs.openjdk.org/browse/JDK-8319451) for now and file a REDO to get rid of the dependency on `BlockLayoutMinDiamondPercentage`. I think this would actually require a CSR though because `BlockLayoutMinDiamondPercentage` is a product flag and we chang it's behavior.
>
> @TobiHartmann @merykitty
> Usually, you file a `[REDO]`, and make the `[BACKOUT]` a subtask. Example:
> https://bugs.openjdk.org/browse/JDK-8323727

@eme64 Thanks for the info, what if we only want to backout the change without the intention of doing a REDO?

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PR Comment: https://git.openjdk.org/jdk/pull/19650#issuecomment-2161304358