lkml.org 
[lkml]   [2016]   [Feb]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH 0/3] cpufreq: Replace timers with utilization update callbacks
    Hi Rafael,

    On 09/02/16 21:05, Rafael J. Wysocki wrote:

    [...]

    > +/**
    > + * cpufreq_update_util - Take a note about CPU utilization changes.
    > + * @util: Current utilization.
    > + * @max: Utilization ceiling.
    > + *
    > + * This function is called by the scheduler on every invocation of
    > + * update_load_avg() on the CPU whose utilization is being updated.
    > + */
    > +void cpufreq_update_util(unsigned long util, unsigned long max)
    > +{
    > + struct update_util_data *data;
    > +
    > + rcu_read_lock();
    > +
    > + data = rcu_dereference(*this_cpu_ptr(&cpufreq_update_util_data));
    > + if (data && data->func)
    > + data->func(data, cpu_clock(smp_processor_id()), util, max);

    Are util and max used anywhere? It seems to me that cpu_clock is used by
    the callbacks to check if the sampling period is elapsed, but I couldn't
    yet find who is using util and max.

    Thanks,

    - Juri

    \
     
     \ /
      Last update: 2016-02-10 13:41    [W:4.037 / U:0.120 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site