RFR: 8277617: Adjust AVX3Threshold for copy/fill stubs

[Jie Fu]

On Thu, 2 Dec 2021 02:53:52 GMT, David Holmes <david.holmes at oracle.com> wrote:

> Because, as previously stated, there is no actual way to identify those
> CPUs. But we know that if they support serialize then they also support
> the faster 64-bit ops. But that doesn't means that if they don't support
> serialize that they don't support the faster 64-bit ops. So all that is
> available for choosing whether to use them or not is whether serialize
> is supported.

OK, make sense!
Since it won't make things worse for the "old" systems, I'm fine with it.
Thanks.

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PR: https://git.openjdk.java.net/jdk/pull/6512