Foreign + Vectors - benchmarks for copying and swapping

[Paul Sandoz]

> On Jul 1, 2021, at 2:25 PM, Radosław Smogura <mail at smogura.eu> wrote:
> 
> Paul,
> 
> I did few other checks, and unrolling does not work for short arrays, too.
> 

Ok, thanks for checking.


> As the maximum stride size is 8, unroll will work for AVX 256, but int arrays with AVX 512 may not get unrolled (unfortuantely I don't have way to test it).
> 
> I think I'll send this change to hotspot team as PR, and let's see what they tell about stride size.
> 

Yes, please do.

Paul.