Re: [PATCH 1/3] sched/topology: Allow archs to populate distance map

* Peter Zijlstra [2021-05-28 10:43:23]: > On Mon, May 24, 2021 at 09:48:29PM +0530, Srikar Dronamraju wrote: > > * Valentin Schneider [2021-05-24 15:16:09]: > > > > I suppose one way to avoid the hook would be to write some "fake" distance > > > values into your distance_lookup_table[] for

Re: [PATCH 1/3] sched/topology: Allow archs to populate distance map

On Mon, May 24, 2021 at 09:48:29PM +0530, Srikar Dronamraju wrote: > * Valentin Schneider [2021-05-24 15:16:09]: > > I suppose one way to avoid the hook would be to write some "fake" distance > > values into your distance_lookup_table[] for offline nodes using your > > distance_ref_point_depth

Re: [PATCH 1/3] sched/topology: Allow archs to populate distance map

* Valentin Schneider [2021-05-25 11:21:02]: > On 24/05/21 21:48, Srikar Dronamraju wrote: > > * Valentin Schneider [2021-05-24 15:16:09]: > >> Ok so from your arch you can figure out the *size* of the set of unique > >> distances, but not the individual node_distance(a, b)... That's quite > >>

Re: [PATCH 1/3] sched/topology: Allow archs to populate distance map

* Valentin Schneider [2021-05-25 11:21:02]: > On 24/05/21 21:48, Srikar Dronamraju wrote: > > * Valentin Schneider [2021-05-24 15:16:09]: > >> Ok so from your arch you can figure out the *size* of the set of unique > >> distances, but not the individual node_distance(a, b)... That's quite > >>

Re: [PATCH 1/3] sched/topology: Allow archs to populate distance map

On 24/05/21 21:48, Srikar Dronamraju wrote: > * Valentin Schneider [2021-05-24 15:16:09]: >> Ok so from your arch you can figure out the *size* of the set of unique >> distances, but not the individual node_distance(a, b)... That's quite >> unfortunate. > > Yes, thats true. > >> >> I suppose one

Re: [PATCH 1/3] sched/topology: Allow archs to populate distance map

* Valentin Schneider [2021-05-24 15:16:09]: > On 21/05/21 14:58, Srikar Dronamraju wrote: > > * Peter Zijlstra [2021-05-21 10:14:10]: > > > >> On Fri, May 21, 2021 at 08:08:02AM +0530, Srikar Dronamraju wrote: > >> > * Peter Zijlstra [2021-05-20 20:56:31]: > >> > > >> > > On Thu, May 20, 2021

Re: [PATCH 1/3] sched/topology: Allow archs to populate distance map

On 21/05/21 14:58, Srikar Dronamraju wrote: > * Peter Zijlstra [2021-05-21 10:14:10]: > >> On Fri, May 21, 2021 at 08:08:02AM +0530, Srikar Dronamraju wrote: >> > * Peter Zijlstra [2021-05-20 20:56:31]: >> > >> > > On Thu, May 20, 2021 at 09:14:25PM +0530, Srikar Dronamraju wrote: >> > > >

Re: [PATCH 1/3] sched/topology: Allow archs to populate distance map

* Peter Zijlstra [2021-05-21 10:14:10]: > On Fri, May 21, 2021 at 08:08:02AM +0530, Srikar Dronamraju wrote: > > * Peter Zijlstra [2021-05-20 20:56:31]: > > > > > On Thu, May 20, 2021 at 09:14:25PM +0530, Srikar Dronamraju wrote: > > > > Currently scheduler populates the distance map by

Re: [PATCH 1/3] sched/topology: Allow archs to populate distance map

On Fri, May 21, 2021 at 08:08:02AM +0530, Srikar Dronamraju wrote: > * Peter Zijlstra [2021-05-20 20:56:31]: > > > On Thu, May 20, 2021 at 09:14:25PM +0530, Srikar Dronamraju wrote: > > > Currently scheduler populates the distance map by looking at distance > > > of each node from all other

Re: [PATCH 1/3] sched/topology: Allow archs to populate distance map

* Peter Zijlstra [2021-05-20 20:56:31]: > On Thu, May 20, 2021 at 09:14:25PM +0530, Srikar Dronamraju wrote: > > Currently scheduler populates the distance map by looking at distance > > of each node from all other nodes. This should work for most > > architectures and platforms. > > > >

Re: [PATCH 1/3] sched/topology: Allow archs to populate distance map

On Thu, May 20, 2021 at 09:14:25PM +0530, Srikar Dronamraju wrote: > Currently scheduler populates the distance map by looking at distance > of each node from all other nodes. This should work for most > architectures and platforms. > > However there are some architectures like POWER that may not