On Fri, Sep 09, 2016 at 11:59:33PM +0200, Rafael J. Wysocki wrote: > From: Rafael J. Wysocki <[email protected]> > > Testing indicates that it is possible to improve performace > significantly without increasing energy consumption too much by > teaching cpufreq governors to bump up the CPU performance level if > the in_iowait flag is set for the task in enqueue_task_fair(). > > For this purpose, define a new cpufreq_update_util() flag > SCHED_CPUFREQ_IOWAIT and modify enqueue_task_fair() to pass that > flag to cpufreq_update_util() in the in_iowait case. That generally > requires cpufreq_update_util() to be called directly from there, > because update_load_avg() may not be invoked in that case. > > Signed-off-by: Rafael J. Wysocki <[email protected]> > Looks-good-to: Steve Muckle <[email protected]>
Acked-by: Peter Zijlstra (Intel) <[email protected]>
