Re: [PATCH v3 3/6] util/bufferiszero: remove AVX512 variant

On 07/02/2024 06:29, Alexander Monakov wrote: > On Tue, 6 Feb 2024, Elena Ufimtseva wrote: >> Hello Alexander >> >> On Tue, Feb 6, 2024 at 12:50 PM Alexander Monakov >> wrote: >> >>> Thanks to early checks in the inline buffer_is_zero wrapper, the SIMD >>> routines are invoked much more rarely in

Re: [PATCH v3 3/6] util/bufferiszero: remove AVX512 variant

On Tue, 6 Feb 2024, Elena Ufimtseva wrote: > Hello Alexander > > On Tue, Feb 6, 2024 at 12:50 PM Alexander Monakov > wrote: > > > 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. Th

Re: [PATCH v3 3/6] util/bufferiszero: remove AVX512 variant

Hello Alexander On Tue, Feb 6, 2024 at 12:50 PM Alexander Monakov wrote: > 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 > fre

Re: [PATCH v3 3/6] util/bufferiszero: remove AVX512 variant

On 2/7/24 06:48, Alexander Monakov wrote: 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 du

[PATCH v3 3/6] util/bufferiszero: remove AVX512 variant

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 operates at reduced perfo