Re: [PATCHv4 10/13] node: Add memory caching attributes

2019-02-12 Thread Keith Busch
On Tue, Feb 12, 2019 at 08:49:03AM +, Jonathan Cameron wrote: > On Mon, 11 Feb 2019 08:23:04 -0700 > Keith Busch wrote: > > > On Sun, Feb 10, 2019 at 09:19:58AM -0800, Jonathan Cameron wrote: > > > On Sat, 9 Feb 2019 09:20:53 +0100 > > > Brice Goglin wrote: > > > > > > > Hello Keith > > >

Re: [PATCHv4 10/13] node: Add memory caching attributes

2019-02-12 Thread Jonathan Cameron
On Mon, 11 Feb 2019 08:23:04 -0700 Keith Busch wrote: > On Sun, Feb 10, 2019 at 09:19:58AM -0800, Jonathan Cameron wrote: > > On Sat, 9 Feb 2019 09:20:53 +0100 > > Brice Goglin wrote: > > > > > Hello Keith > > > > > > Could we ever have a single side cache in front of two NUMA nodes ? I > >

Re: [PATCHv4 10/13] node: Add memory caching attributes

2019-02-12 Thread Brice Goglin
Le 11/02/2019 à 16:23, Keith Busch a écrit : > On Sun, Feb 10, 2019 at 09:19:58AM -0800, Jonathan Cameron wrote: >> On Sat, 9 Feb 2019 09:20:53 +0100 >> Brice Goglin wrote: >> >>> Hello Keith >>> >>> Could we ever have a single side cache in front of two NUMA nodes ? I >>> don't see a way to fin

Re: [PATCHv4 10/13] node: Add memory caching attributes

2019-02-11 Thread Keith Busch
On Sun, Feb 10, 2019 at 09:19:58AM -0800, Jonathan Cameron wrote: > On Sat, 9 Feb 2019 09:20:53 +0100 > Brice Goglin wrote: > > > Hello Keith > > > > Could we ever have a single side cache in front of two NUMA nodes ? I > > don't see a way to find that out in the current implementation. Would we

Re: [PATCHv4 10/13] node: Add memory caching attributes

2019-02-10 Thread Jonathan Cameron
On Sat, 9 Feb 2019 09:20:53 +0100 Brice Goglin wrote: > Hello Keith > > Could we ever have a single side cache in front of two NUMA nodes ? I > don't see a way to find that out in the current implementation. Would we > have an "id" and/or "nodemap" bitmask in the sidecache structure ? This is c

Re: [PATCHv4 10/13] node: Add memory caching attributes

2019-02-09 Thread Brice Goglin
Hello Keith Could we ever have a single side cache in front of two NUMA nodes ? I don't see a way to find that out in the current implementation. Would we have an "id" and/or "nodemap" bitmask in the sidecache structure ? Thanks Brice Le 16/01/2019 à 18:58, Keith Busch a écrit : > System memo

Re: [PATCHv4 10/13] node: Add memory caching attributes

2019-01-17 Thread Rafael J. Wysocki
On Wed, Jan 16, 2019 at 6:59 PM Keith Busch wrote: > > System memory may have side caches to help improve access speed to > frequently requested address ranges. While the system provided cache is > transparent to the software accessing these memory ranges, applications > can optimize their own acc

[PATCHv4 10/13] node: Add memory caching attributes

2019-01-16 Thread Keith Busch
System memory may have side caches to help improve access speed to frequently requested address ranges. While the system provided cache is transparent to the software accessing these memory ranges, applications can optimize their own access based on cache attributes. Provide a new API for the kern