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Commit f0693c8b authored by Steven Rostedt's avatar Steven Rostedt Committed by Steven Rostedt
Browse files

tracing/sched: show CPU task wakes up on in trace event 



While debugging the scheduler push / pull algorithm, I found
it very annoying that the sched wake up events did not show
the CPU that the task was waking on. In order to analyze the
scheduler, I needed that information.

This patch adds recording of the CPU that a task is waking up
on.

Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent d88cb582

include/trace/events/sched.h

+8 −4
Original line number Original line Diff line number Diff line
@@ -94,6 +94,7 @@ TRACE_EVENT(sched_wakeup, 
		__field(	pid_t,	pid			)

		__field(	pid_t,	pid			)

		__field(	int,	prio			)

		__field(	int,	prio			)

		__field(	int,	success			)

		__field(	int,	success			)

		__field(	int,	cpu			)

	),

	),





	TP_fast_assign(

	TP_fast_assign(
@@ -101,11 +102,12 @@ TRACE_EVENT(sched_wakeup, 
		__entry->pid		= p->pid;

		__entry->pid		= p->pid;

		__entry->prio		= p->prio;

		__entry->prio		= p->prio;

		__entry->success	= success;

		__entry->success	= success;

		__entry->cpu		= task_cpu(p);

	),

	),





	TP_printk("task %s:%d [%d] success=%d",

	TP_printk("task %s:%d [%d] success=%d [%03d]",

		  __entry->comm, __entry->pid, __entry->prio,

		  __entry->comm, __entry->pid, __entry->prio,

		  __entry->success)

		  __entry->success, __entry->cpu)

);

);





/*

/*
@@ -125,6 +127,7 @@ TRACE_EVENT(sched_wakeup_new, 
		__field(	pid_t,	pid			)

		__field(	pid_t,	pid			)

		__field(	int,	prio			)

		__field(	int,	prio			)

		__field(	int,	success			)

		__field(	int,	success			)

		__field(	int,	cpu			)

	),

	),





	TP_fast_assign(

	TP_fast_assign(
@@ -132,11 +135,12 @@ TRACE_EVENT(sched_wakeup_new, 
		__entry->pid		= p->pid;

		__entry->pid		= p->pid;

		__entry->prio		= p->prio;

		__entry->prio		= p->prio;

		__entry->success	= success;

		__entry->success	= success;

		__entry->cpu		= task_cpu(p);

	),

	),





	TP_printk("task %s:%d [%d] success=%d",

	TP_printk("task %s:%d [%d] success=%d [%03d]",

		  __entry->comm, __entry->pid, __entry->prio,

		  __entry->comm, __entry->pid, __entry->prio,

		  __entry->success)

		  __entry->success, __entry->cpu)

);

);





/*

/*