Re: [PATCH v6 06/11] cpufreq/schedutil: use dl utilization tracking

2018-06-22 Thread Vincent Guittot
On Fri, 22 Jun 2018 at 17:24, Peter Zijlstra wrote: > > On Fri, Jun 08, 2018 at 02:09:49PM +0200, Vincent Guittot wrote: > > - * Ideally we would like to set util_dl as min/guaranteed freq and > > - * util_cfs + util_dl as requested freq. However, cpufreq is not yet > > - * ready fo

Re: [PATCH v6 06/11] cpufreq/schedutil: use dl utilization tracking

2018-06-22 Thread Peter Zijlstra
On Fri, Jun 08, 2018 at 02:09:49PM +0200, Vincent Guittot wrote: > - * Ideally we would like to set util_dl as min/guaranteed freq and > - * util_cfs + util_dl as requested freq. However, cpufreq is not yet > - * ready for such an interface. So, we only do the latter for now. Please

Re: [PATCH v6 06/11] cpufreq/schedutil: use dl utilization tracking

2018-06-08 Thread Vincent Guittot
On 8 June 2018 at 15:36, Juri Lelli wrote: > On 08/06/18 14:54, Juri Lelli wrote: >> On 08/06/18 14:48, Vincent Guittot wrote: >> > On 8 June 2018 at 14:39, Juri Lelli wrote: >> > > Hi Vincent, >> > > >> > > On 08/06/18 14:09, Vincent Guittot wrote: >> > >> Now that we have both the dl class band

Re: [PATCH v6 06/11] cpufreq/schedutil: use dl utilization tracking

2018-06-08 Thread Juri Lelli
On 08/06/18 14:54, Juri Lelli wrote: > On 08/06/18 14:48, Vincent Guittot wrote: > > On 8 June 2018 at 14:39, Juri Lelli wrote: > > > Hi Vincent, > > > > > > On 08/06/18 14:09, Vincent Guittot wrote: > > >> Now that we have both the dl class bandwidth requirement and the dl class > > >> utilizatio

Re: [PATCH v6 06/11] cpufreq/schedutil: use dl utilization tracking

2018-06-08 Thread Juri Lelli
On 08/06/18 14:48, Vincent Guittot wrote: > On 8 June 2018 at 14:39, Juri Lelli wrote: > > Hi Vincent, > > > > On 08/06/18 14:09, Vincent Guittot wrote: > >> Now that we have both the dl class bandwidth requirement and the dl class > >> utilization, we can detect when CPU is fully used so we shoul

Re: [PATCH v6 06/11] cpufreq/schedutil: use dl utilization tracking

2018-06-08 Thread Vincent Guittot
On 8 June 2018 at 14:39, Juri Lelli wrote: > Hi Vincent, > > On 08/06/18 14:09, Vincent Guittot wrote: >> Now that we have both the dl class bandwidth requirement and the dl class >> utilization, we can detect when CPU is fully used so we should run at max. >> Otherwise, we keep using the dl bandw

Re: [PATCH v6 06/11] cpufreq/schedutil: use dl utilization tracking

2018-06-08 Thread Juri Lelli
Hi Vincent, On 08/06/18 14:09, Vincent Guittot wrote: > Now that we have both the dl class bandwidth requirement and the dl class > utilization, we can detect when CPU is fully used so we should run at max. > Otherwise, we keep using the dl bandwidth requirement to define the > utilization of the