RFR: 8331126: [s390x] secondary_super_cache does not scale well [v6]

[Martin Doerr]

On Sat, 29 Jun 2024 12:31:06 GMT, Amit Kumar <amitkumar at openjdk.org> wrote:

>> Ok. I assume that CPUs which don't support `z_srlk` are no longer supported.
>
> Yes those are not supported. 
> 
> To answer your question, `Distinct-operands facility` needs to be installed for `z_srlk`, which is there from `z11` onwards. We are planning to drop the support for `z10 and below versions` for sure, and will remove the checks. I'll file a RFE soon, after discussion with management.

You can do something like https://github.com/openjdk/jdk/pull/19368/commits/5633ff25982f24d916968001d7a66feeda0a1c7f before that is resolved.

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PR Review Comment: https://git.openjdk.org/jdk/pull/19544#discussion_r1659819400