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

Borislav Petkov bp@alien8.de
Wed Jun 19 15:43:03 GMT 2024


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


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