RFR: 8278020: ~13% variation in Renaissance-Scrabble [v2]

[Ioi Lam]

On Wed, 15 Dec 2021 06:02:35 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

> I approved but still think this should be targeted at 18 - assuming this was a performance regression in 18.
> 
> Padding may have the same performance affect but will also impact footprint potentially - which in turn may impact the caching behaviour.

@ericcaspole checked our benchmark database and the regression seems to have started around JDK 15. So yes, I will backport the fix to 17 and 18. I want to integrate into the mainline first so it can be baked a little before the backport.

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PR: https://git.openjdk.java.net/jdk/pull/6838