ANDROID: DEBUG: sched/tune: add tracepoint for energy_diff() values
Change-Id: Id8fafbd85f6d81248f322e073ee790a7ceec0bf7
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Andres Oportus <andresoportus@google.com>
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 8742045..8884ec6 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -818,6 +818,63 @@
__entry->margin)
);
+/*
+ * Tracepoint for accounting sched group energy
+ */
+TRACE_EVENT(sched_energy_diff,
+
+ TP_PROTO(struct task_struct *tsk, int scpu, int dcpu, int udelta,
+ int nrgb, int nrga, int nrgd, int capb, int capa, int capd,
+ int nrgn, int nrgp),
+
+ TP_ARGS(tsk, scpu, dcpu, udelta,
+ nrgb, nrga, nrgd, capb, capa, capd,
+ nrgn, nrgp),
+
+ TP_STRUCT__entry(
+ __array( char, comm, TASK_COMM_LEN )
+ __field( pid_t, pid )
+ __field( int, scpu )
+ __field( int, dcpu )
+ __field( int, udelta )
+ __field( int, nrgb )
+ __field( int, nrga )
+ __field( int, nrgd )
+ __field( int, capb )
+ __field( int, capa )
+ __field( int, capd )
+ __field( int, nrgn )
+ __field( int, nrgp )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
+ __entry->pid = tsk->pid;
+ __entry->scpu = scpu;
+ __entry->dcpu = dcpu;
+ __entry->udelta = udelta;
+ __entry->nrgb = nrgb;
+ __entry->nrga = nrga;
+ __entry->nrgd = nrgd;
+ __entry->capb = capb;
+ __entry->capa = capa;
+ __entry->capd = capd;
+ __entry->nrgn = nrgn;
+ __entry->nrgp = nrgp;
+ ),
+
+ TP_printk("pid=%d comm=%s "
+ "src_cpu=%d dst_cpu=%d usage_delta=%d "
+ "nrg_before=%d nrg_after=%d nrg_diff=%d "
+ "cap_before=%d cap_after=%d cap_delta=%d "
+ "nrg_delta=%d nrg_payoff=%d",
+ __entry->pid, __entry->comm,
+ __entry->scpu, __entry->dcpu, __entry->udelta,
+ __entry->nrgb, __entry->nrga, __entry->nrgd,
+ __entry->capb, __entry->capa, __entry->capd,
+ __entry->nrgn, __entry->nrgp)
+);
+
#endif /* _TRACE_SCHED_H */
/* This part must be outside protection */
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 6ae74cc..deff3ca 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5453,6 +5453,7 @@
struct sched_domain *sd;
struct sched_group *sg;
int sd_cpu = -1, energy_before = 0, energy_after = 0;
+ int result;
struct energy_env eenv_before = {
.util_delta = 0,
@@ -5496,7 +5497,15 @@
eenv->nrg.diff = eenv->nrg.after - eenv->nrg.before;
eenv->payoff = 0;
- return energy_diff_evaluate(eenv);
+ result = energy_diff_evaluate(eenv);
+
+ trace_sched_energy_diff(eenv->task,
+ eenv->src_cpu, eenv->dst_cpu, eenv->util_delta,
+ eenv->nrg.before, eenv->nrg.after, eenv->nrg.diff,
+ eenv->cap.before, eenv->cap.after, eenv->cap.delta,
+ eenv->nrg.delta, eenv->payoff);
+
+ return result;
}
/*