RFR: 8357531: The `SegmentBulkOperations::fill` method can be improved using overlaps

[Per Minborg]

On Thu, 22 May 2025 08:56:13 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

> > Performance on an M1 Mac (Sequoia 15.4.1)
> 
> Are the "regressions" for very big sizes related to this patch?

By default, only segments that are smaller than 32 bytes will use the affected code.

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PR Comment: https://git.openjdk.org/jdk/pull/25383#issuecomment-2900835299