[PATCH] x86: Enable non-temporal memset tunable for AMD

[Sunil Pandey]

On Wed, Jun 19, 2024 at 8:43 AM Borislav Petkov <bp@alien8.de> wrote:

> On Fri, Jun 07, 2024 at 11:04:47PM +0000, Joe Damato wrote:
> > In commit 46b5e98ef6f1 ("x86: Add seperate non-temporal tunable for
> > memset") a tunable threshold for enabling non-temporal memset was added,
> > but only for Intel hardware.
> >
> > Since that commit, new benchmark results suggest that non-temporal
> > memset is beneficial on AMD, as well, so allow this tunable to be set
> > for AMD.
> >
> > See:
> >
> https://docs.google.com/spreadsheets/d/1opzukzvum4n6-RUVHTGddV6RjAEil4P2uMjjQGLbLcU/edit?usp=sharing
>
> Say, is there some docs somewhere explaining how those benchmarks are run
> so
> that I can do them myself?
>
> Please CC me directly as I'm not subscribed to the libc ML.
>
> Thx.
>
> --
> Regards/Gruss,
>     Boris.
>
> https://people.kernel.org/tglx/notes-about-netiquette


 I would like to backport this patch to release branches.

Any comments or objections?

--Sunil