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

[Jie Fu]

On Mon, 5 Jan 2026 07:58:24 GMT, Vic Wang <duke at openjdk.org> wrote:

> > 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?
> 
> The performance improvement from this change is not significant. 

If no obvious performance improvement, why change it?
Are you sure there is no performance degradation after this change?

> Additionally, I noticed that the GHA build (debug) failed due to 'No space left on device,' which is related to disk space. Does it affect the patch submission? And how to solve it？

Don't worry about this.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/27241#issuecomment-3709535713