Re: [PATCH RFC 4/8] sched/cpufreq_schedutil: split utilization signals

[Peter Zijlstra]

On Tue, May 23, 2017 at 09:53:47AM +0100, Juri Lelli wrote:
> @@ -157,14 +158,13 @@ static unsigned int get_next_freq(struct sugov_policy *sg_policy,
>  	return cpufreq_driver_resolve_freq(policy, freq);
>  }
>  
> -static void sugov_get_util(unsigned long *util, unsigned long *max)
> +static void sugov_get_util(struct sugov_cpu *sg_cpu)
>  {
>  	struct rq *rq = this_rq();
> -	unsigned long dl_util = (rq->dl.running_bw * SCHED_CAPACITY_SCALE) >> 20;
>  
> -	*max = arch_scale_cpu_capacity(NULL, smp_processor_id());
> -
> -	*util = min(rq->cfs.avg.util_avg + dl_util, *max);
> +	sg_cpu->max = arch_scale_cpu_capacity(NULL, smp_processor_id());
> +	sg_cpu->util_cfs = rq->cfs.avg.util_avg;
> +	sg_cpu->util_dl = (rq->dl.running_bw * SCHED_CAPACITY_SCALE) >> 20;
>  }

Luca just introduced a nice BW_SHIFT for that '20' thing.