Re: [RFC PATCH v1 4/8] sched/cpufreq_schedutil: split utilization signals

Viresh Kumar
2017-07-10T07:05:41Z

On 05-07-17, 09:59, Juri Lelli wrote:
> To be able to treat utilization signals of different scheduling classes
> in different ways (e.g., CFS signal might be stale while DEADLINE signal
> is never stale by design) we need to split sugov_cpu::util signal in two:
> util_cfs and util_dl.
>
> This patch does that by also changing sugov_get_util() parameter list.
> After this change, aggregation of the different signals has to be performed
> by sugov_get_util() users (so that they can decide what to do with the
> different signals).
>
> Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> Signed-off-by: Juri Lelli <juri.lelli@arm.com>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: Ingo Molnar <mingo@kernel.org>
> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> Cc: Viresh Kumar <viresh.kumar@linaro.org>
> Cc: Luca Abeni <luca.abeni@santannapisa.it>
> Cc: Claudio Scordino <claudio@evidence.eu.com>
> ---
> Changes from RFCv0:
>
> - refactor aggregation of utilization in sugov_aggregate_util()
> ---
> kernel/sched/cpufreq_schedutil.c | 28 ++++++++++++++++------------
> 1 file changed, 16 insertions(+), 12 deletions(-)

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

--
viresh