evie/android_kernel_oneplus_msm8998
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sched: Update tracepoint to include task info

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Update sched_get_task_cpu_cycles trace to include pid and name of the
task to help with debug better.

Change-Id: Ic307ebcf0a44c94bf0a2aa1a02b8aeff39010b29
Signed-off-by: Puja Gupta <pujag@codeaurora.org>
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
This commit is contained in:
Puja Gupta 2017-11-16 14:18:04 -08:00 • committed by Pavankumar Kondeti
parent 6e92713cba
commit f9e96dfcb8
2 changed files with 10 additions and 5 deletions
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12
include/trace/events/sched.h
View file

@ -436,9 +436,9 @@ TRACE_EVENT(sched_update_task_ravg,
TRACE_EVENT(sched_get_task_cpu_cycles,
TP_PROTO(int cpu, int event, u64 cycles, u64 exec_time),
TP_PROTO(int cpu, int event, u64 cycles, u64 exec_time, struct task_struct *p),
TP_ARGS(cpu, event, cycles, exec_time),
TP_ARGS(cpu, event, cycles, exec_time, p),
TP_STRUCT__entry(
__field(int, cpu )
@ -448,6 +448,8 @@ TRACE_EVENT(sched_get_task_cpu_cycles,
__field(u32, freq )
__field(u32, legacy_freq )
__field(u32, max_freq)
__field(pid_t, pid )
__array(char, comm, TASK_COMM_LEN )
),
TP_fast_assign(
@ -458,12 +460,14 @@ TRACE_EVENT(sched_get_task_cpu_cycles,
__entry->freq = cpu_cycles_to_freq(cycles, exec_time);
__entry->legacy_freq = cpu_cur_freq(cpu);
__entry->max_freq = cpu_max_freq(cpu);
__entry->pid = p->pid;
memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
),
TP_printk("cpu=%d event=%d cycles=%llu exec_time=%llu freq=%u legacy_freq=%u max_freq=%u",
TP_printk("cpu=%d event=%d cycles=%llu exec_time=%llu freq=%u legacy_freq=%u max_freq=%u task=%d (%s)",
__entry->cpu, __entry->event, __entry->cycles,
__entry->exec_time, __entry->freq, __entry->legacy_freq,
__entry->max_freq)
__entry->max_freq, __entry->pid, __entry->comm)
);
TRACE_EVENT(sched_update_history,

3
kernel/sched/hmp.c
View file

@ -2608,7 +2608,8 @@ update_task_rq_cpu_cycles(struct task_struct *p, struct rq *rq, int event,
p->cpu_cycles = cur_cycles;
trace_sched_get_task_cpu_cycles(cpu, event, rq->cc.cycles, rq->cc.time);
trace_sched_get_task_cpu_cycles(cpu, event, rq->cc.cycles,
rq->cc.time, p);
}
static int