Re: Prefetches in buffer_zero_*

2021-07-26 Thread Dr. David Alan Gilbert
* Philippe Mathieu-Daudé (phi...@redhat.com) wrote: > +Lukáš > > On 7/26/21 10:47 AM, Dr. David Alan Gilbert wrote: > > * Joe Mario (jma...@redhat.com) wrote: > >> On Thu, Jul 22, 2021 at 3:14 PM Dr. David Alan Gilbert > >> > >> wrote: > >> > >>> * Richard Henderson (richard.hender...@linaro.org

Re: Prefetches in buffer_zero_*

2021-07-26 Thread Philippe Mathieu-Daudé
+Lukáš On 7/26/21 10:47 AM, Dr. David Alan Gilbert wrote: > * Joe Mario (jma...@redhat.com) wrote: >> On Thu, Jul 22, 2021 at 3:14 PM Dr. David Alan Gilbert >> wrote: >> >>> * Richard Henderson (richard.hender...@linaro.org) wrote: On 7/22/21 12:02 AM, Dr. David Alan Gilbert wrote: > Hi

Re: Prefetches in buffer_zero_*

2021-07-26 Thread Dr. David Alan Gilbert
* Joe Mario (jma...@redhat.com) wrote: > On Thu, Jul 22, 2021 at 3:14 PM Dr. David Alan Gilbert > wrote: > > > * Richard Henderson (richard.hender...@linaro.org) wrote: > > > On 7/22/21 12:02 AM, Dr. David Alan Gilbert wrote: > > > > Hi Richard, > > > >I think you were the last person to fidd

Re: Prefetches in buffer_zero_*

2021-07-23 Thread Joe Mario
On Thu, Jul 22, 2021 at 3:14 PM Dr. David Alan Gilbert wrote: > * Richard Henderson (richard.hender...@linaro.org) wrote: > > On 7/22/21 12:02 AM, Dr. David Alan Gilbert wrote: > > > Hi Richard, > > >I think you were the last person to fiddle with the prefetching > > > in buffer_zero_avx2 and

Re: Prefetches in buffer_zero_*

2021-07-22 Thread Dr. David Alan Gilbert
* Richard Henderson (richard.hender...@linaro.org) wrote: > On 7/22/21 12:02 AM, Dr. David Alan Gilbert wrote: > > Hi Richard, > >I think you were the last person to fiddle with the prefetching > > in buffer_zero_avx2 and friends; Joe (cc'd) wondered if explicit > > prefetching still made sense

Re: Prefetches in buffer_zero_*

2021-07-22 Thread Richard Henderson
On 7/22/21 12:02 AM, Dr. David Alan Gilbert wrote: Hi Richard, I think you were the last person to fiddle with the prefetching in buffer_zero_avx2 and friends; Joe (cc'd) wondered if explicit prefetching still made sense on modern CPUs, and that their hardware generally figures stuff out bette