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| author | Juri Lelli <juri.lelli@arm.com> | 2015-11-09 12:06:24 +0000 |
|---|---|---|
| committer | Punit Agrawal <punit.agrawal@arm.com> | 2016-03-21 14:57:41 +0000 |
| commit | 5c6c1646ff57407e5dfc386b47aedcfe22534ebd (patch) | |
| tree | 194ac294c0c4aab3d990e688bca5d2bed9b5dc0d | |
| parent | 8c825e1cbf7bdf109e9d860e8f751db395f1d8fe (diff) | |
DEBUG: sched: add tracepoint for cpu/freq scale invariance
Signed-off-by: Juri Lelli <juri.lelli@arm.com>
| -rw-r--r-- | include/trace/events/sched.h | 24 | ||||
| -rw-r--r-- | kernel/sched/fair.c | 1 |
2 files changed, 25 insertions, 0 deletions
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index 9b90c57517a9..20a7216f8abb 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -562,6 +562,30 @@ TRACE_EVENT(sched_wake_idle_without_ipi, TP_printk("cpu=%d", __entry->cpu) ); + +TRACE_EVENT(sched_contrib_scale_f, + + TP_PROTO(int cpu, unsigned long freq_scale_factor, + unsigned long cpu_scale_factor), + + TP_ARGS(cpu, freq_scale_factor, cpu_scale_factor), + + TP_STRUCT__entry( + __field(int, cpu) + __field(unsigned long, freq_scale_factor) + __field(unsigned long, cpu_scale_factor) + ), + + TP_fast_assign( + __entry->cpu = cpu; + __entry->freq_scale_factor = freq_scale_factor; + __entry->cpu_scale_factor = cpu_scale_factor; + ), + + TP_printk("cpu=%d freq_scale_factor=%lu cpu_scale_factor=%lu", + __entry->cpu, __entry->freq_scale_factor, + __entry->cpu_scale_factor) +); #endif /* _TRACE_SCHED_H */ /* This part must be outside protection */ diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 1191c4b1b119..ec2e8aecc4f3 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -2587,6 +2587,7 @@ __update_load_avg(u64 now, int cpu, struct sched_avg *sa, scale_freq = arch_scale_freq_capacity(NULL, cpu); scale_cpu = arch_scale_cpu_capacity(NULL, cpu); + trace_sched_contrib_scale_f(cpu, scale_freq, scale_cpu); /* delta_w is the amount already accumulated against our next period */ delta_w = sa->period_contrib; |