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trace/sched: add rq utilization signal for WALT

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It is useful to be able to check current capacity against rq utilization
signal generated by WALT (to check how a cpufreq governor is behaving
for example).

Add rq utilization signal (same scale as capacity) to the walt_update_
task_ravg tracepoint.

Change-Id: I9aae3884a741d23ac494bef80d2303f107f135ce
Signed-off-by: Juri Lelli <juri.lelli@arm.com>
This commit is contained in:
Juri Lelli 2016-11-30 11:09:42 +00:00 • committed by Andres Oportus
parent f71d9f01c6
commit 3c5c4e9724
1 changed files with 5 additions and 3 deletions
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8
include/trace/events/sched.h
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@ -984,6 +984,7 @@ TRACE_EVENT(walt_update_task_ravg,
__field( int, cpu )
__field( u64, cs )
__field( u64, ps )
__field(unsigned long, util )
__field( u32, curr_window )
__field( u32, prev_window )
__field( u64, nt_cs )
@ -1008,6 +1009,8 @@ TRACE_EVENT(walt_update_task_ravg,
__entry->irqtime = irqtime;
__entry->cs = rq->curr_runnable_sum;
__entry->ps = rq->prev_runnable_sum;
__entry->util = rq->prev_runnable_sum << SCHED_LOAD_SHIFT;
do_div(__entry->util, walt_ravg_window);
__entry->curr_window = p->ravg.curr_window;
__entry->prev_window = p->ravg.prev_window;
__entry->nt_cs = rq->nt_curr_runnable_sum;
@ -1016,16 +1019,15 @@ TRACE_EVENT(walt_update_task_ravg,
),
TP_printk("wc %llu ws %llu delta %llu event %d cpu %d cur_freq %u cur_pid %d task %d (%s) ms %llu delta %llu demand %u sum %u irqtime %llu"
" cs %llu ps %llu cur_window %u prev_window %u nt_cs %llu nt_ps %llu active_wins %u"
" cs %llu ps %llu util %lu cur_window %u prev_window %u active_wins %u"
, __entry->wallclock, __entry->win_start, __entry->delta,
__entry->evt, __entry->cpu,
__entry->cur_freq, __entry->cur_pid,
__entry->pid, __entry->comm, __entry->mark_start,
__entry->delta_m, __entry->demand,
__entry->sum, __entry->irqtime,
__entry->cs, __entry->ps,
__entry->cs, __entry->ps, __entry->util,
__entry->curr_window, __entry->prev_window,
__entry->nt_cs, __entry->nt_ps,
__entry->active_windows
)
);