Re: [PATCH 08/21] udl-kms: avoid prefetch

2018-06-16 Thread Alexey Brodkin
Hi Mikulas, On Wed, 2018-06-06 at 11:46 -0400, Mikulas Patocka wrote: > > On Wed, 6 Jun 2018, Alexey Brodkin wrote: > > > Hi Mikulas, > > > > On Tue, 2018-06-05 at 11:30 -0400, Mikulas Patocka wrote: > > > > > > On Tue, 5 Jun 2018, Alexey Brodkin wrote: > > > > > > > Hi Mikulas, > > > > > >

Re: [PATCH 08/21] udl-kms: avoid prefetch

2018-06-07 Thread Alexey Brodkin
Hi Mikulas, On Tue, 2018-06-05 at 11:30 -0400, Mikulas Patocka wrote: > > On Tue, 5 Jun 2018, Alexey Brodkin wrote: > > > Hi Mikulas, > > > > On Sun, 2018-06-03 at 16:41 +0200, Mikulas Patocka wrote: > > > Modern processors can detect linear memory accesses and prefetch data > > > automatically

Re: [PATCH 08/21] udl-kms: avoid prefetch

2018-06-06 Thread Mikulas Patocka
On Wed, 6 Jun 2018, Alexey Brodkin wrote: > Hi Mikulas, > > On Tue, 2018-06-05 at 11:30 -0400, Mikulas Patocka wrote: > > > > On Tue, 5 Jun 2018, Alexey Brodkin wrote: > > > > > Hi Mikulas, > > > > > > On Sun, 2018-06-03 at 16:41 +0200, Mikulas Patocka wrote: > > > > Modern processors can de

Re: [PATCH 08/21] udl-kms: avoid prefetch

2018-06-06 Thread Alexey Brodkin
Hi Mikulas, On Sun, 2018-06-03 at 16:41 +0200, Mikulas Patocka wrote: > Modern processors can detect linear memory accesses and prefetch data > automatically, so there's no need to use prefetch. Not each and every CPU that's capable of running Linux has prefetch functionality :) Still read-on...

Re: [PATCH 08/21] udl-kms: avoid prefetch

2018-06-06 Thread Ladislav Michl
On Tue, Jun 05, 2018 at 10:08:02AM +, Alexey Brodkin wrote: > Hi Mikulas, > > On Sun, 2018-06-03 at 16:41 +0200, Mikulas Patocka wrote: > > Modern processors can detect linear memory accesses and prefetch data > > automatically, so there's no need to use prefetch. > > Not each and every CPU t

Re: [PATCH 08/21] udl-kms: avoid prefetch

2018-06-05 Thread Mikulas Patocka
On Tue, 5 Jun 2018, Alexey Brodkin wrote: > Hi Mikulas, > > On Sun, 2018-06-03 at 16:41 +0200, Mikulas Patocka wrote: > > Modern processors can detect linear memory accesses and prefetch data > > automatically, so there's no need to use prefetch. > > Not each and every CPU that's capable of ru