On Mon, 29 Apr 2024, Daniel P. Berrangé wrote:
> On Wed, Apr 24, 2024 at 03:56:57PM -0700, Richard Henderson wrote:
> > From: Alexander Monakov
> >
> > Thanks to early checks in the inline buffer_is_zero wrapper, the SIMD
> > routines are invoked much more rarely in normal use when most buffers
On Wed, Apr 24, 2024 at 03:56:57PM -0700, Richard Henderson wrote:
> From: Alexander Monakov
>
> Thanks to early checks in the inline buffer_is_zero wrapper, the SIMD
> routines are invoked much more rarely in normal use when most buffers
> are non-zero. This makes use of AVX512 unprofitable, as
From: Alexander Monakov
Thanks to early checks in the inline buffer_is_zero wrapper, the SIMD
routines are invoked much more rarely in normal use when most buffers
are non-zero. This makes use of AVX512 unprofitable, as it incurs extra
frequency and voltage transition periods during which the CPU
