RFR: 8367478: Improve UseAVX setting and add cpu descriptions for zhaoxin processors [v3]

[Jie Fu]

On Sun, 4 Jan 2026 10:07:31 GMT, Vic Wang <duke at openjdk.org> wrote:

>> Here is the patch that improving the UseAVX setting and add cpu descriptions for zhaoxin processors.
>> Can you help to review this patch?
>> Thank you!
>
> Vic Wang has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains two new commits since the last revision:
> 
>  - Move cpu_model_id to the zx-specific if branch.
>  - Improve UseAVX setting and add cpu descriptions for zhaoxin processors.

Thanks for the update.
The changes are all zx-only related, which looks fine to me.

Can you show us some performance number before and after this change?

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PR Comment: https://git.openjdk.org/jdk/pull/27241#issuecomment-3708718966