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tracing: convert the sched trace points to the TRACE_EVENT macros
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Impact: enhancement

This patch converts the rest of the sched trace points to use the new
more powerful TRACE_EVENT macro.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
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Steven Rostedt committed Mar 10, 2009
1 parent da4d030 commit 12b5fdb
Showing 1 changed file with 246 additions and 76 deletions.
322 changes: 246 additions & 76 deletions include/trace/sched_event_types.h
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Original file line number Diff line number Diff line change
Expand Up @@ -8,59 +8,137 @@
#undef TRACE_SYSTEM
#define TRACE_SYSTEM sched

TRACE_EVENT_FORMAT(sched_kthread_stop,
/*
* Tracepoint for calling kthread_stop, performed to end a kthread:
*/
TRACE_EVENT(sched_kthread_stop,

TP_PROTO(struct task_struct *t),

TP_ARGS(t),
TP_FMT("task %s:%d", t->comm, t->pid),
TRACE_STRUCT(
TRACE_FIELD(pid_t, pid, t->pid)

TP_STRUCT__entry(
__array( char, comm, TASK_COMM_LEN )
__field( pid_t, pid )
),
TP_RAW_FMT("task %d")
);

TRACE_EVENT_FORMAT(sched_kthread_stop_ret,
TP_printk("task %s:%d", __entry->comm, __entry->pid),

TP_fast_assign(
memcpy(__entry->comm, t->comm, TASK_COMM_LEN);
__entry->pid = t->pid;
)
);

/*
* Tracepoint for the return value of the kthread stopping:
*/
TRACE_EVENT(sched_kthread_stop_ret,

TP_PROTO(int ret),

TP_ARGS(ret),
TP_FMT("ret=%d", ret),
TRACE_STRUCT(
TRACE_FIELD(int, ret, ret)

TP_STRUCT__entry(
__field( int, ret )
),
TP_RAW_FMT("ret=%d")
);

TRACE_EVENT_FORMAT(sched_wait_task,
TP_printk("ret %d", __entry->ret),

TP_fast_assign(
__entry->ret = ret;
)
);

/*
* Tracepoint for waiting on task to unschedule:
*
* (NOTE: the 'rq' argument is not used by generic trace events,
* but used by the latency tracer plugin. )
*/
TRACE_EVENT(sched_wait_task,

TP_PROTO(struct rq *rq, struct task_struct *p),

TP_ARGS(rq, p),
TP_FMT("task %s:%d", p->comm, p->pid),
TRACE_STRUCT(
TRACE_FIELD(pid_t, pid, p->pid)

TP_STRUCT__entry(
__array( char, comm, TASK_COMM_LEN )
__field( pid_t, pid )
__field( int, prio )
),
TP_RAW_FMT("task %d")
);

TRACE_EVENT_FORMAT(sched_wakeup,
TP_printk("task %s:%d [%d]",
__entry->comm, __entry->pid, __entry->prio),

TP_fast_assign(
memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
__entry->pid = p->pid;
__entry->prio = p->prio;
)
);

/*
* Tracepoint for waking up a task:
*
* (NOTE: the 'rq' argument is not used by generic trace events,
* but used by the latency tracer plugin. )
*/
TRACE_EVENT(sched_wakeup,

TP_PROTO(struct rq *rq, struct task_struct *p, int success),

TP_ARGS(rq, p, success),
TP_FMT("task %s:%d %s",
p->comm, p->pid, success ? "succeeded" : "failed"),
TRACE_STRUCT(
TRACE_FIELD(pid_t, pid, p->pid)
TRACE_FIELD(int, success, success)

TP_STRUCT__entry(
__array( char, comm, TASK_COMM_LEN )
__field( pid_t, pid )
__field( int, prio )
__field( int, success )
),
TP_RAW_FMT("task %d success=%d")
);

TRACE_EVENT_FORMAT(sched_wakeup_new,
TP_printk("task %s:%d [%d] success=%d",
__entry->comm, __entry->pid, __entry->prio,
__entry->success),

TP_fast_assign(
memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
__entry->pid = p->pid;
__entry->prio = p->prio;
__entry->success = success;
)
);

/*
* Tracepoint for waking up a new task:
*
* (NOTE: the 'rq' argument is not used by generic trace events,
* but used by the latency tracer plugin. )
*/
TRACE_EVENT(sched_wakeup_new,

TP_PROTO(struct rq *rq, struct task_struct *p, int success),

TP_ARGS(rq, p, success),
TP_FMT("task %s:%d",
p->comm, p->pid, success ? "succeeded" : "failed"),
TRACE_STRUCT(
TRACE_FIELD(pid_t, pid, p->pid)
TRACE_FIELD(int, success, success)

TP_STRUCT__entry(
__array( char, comm, TASK_COMM_LEN )
__field( pid_t, pid )
__field( int, prio )
__field( int, success )
),
TP_RAW_FMT("task %d success=%d")
);

TP_printk("task %s:%d [%d] success=%d",
__entry->comm, __entry->pid, __entry->prio,
__entry->success),

TP_fast_assign(
memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
__entry->pid = p->pid;
__entry->prio = p->prio;
__entry->success = success;
)
);

/*
* Tracepoint for task switches, performed by the scheduler:
Expand Down Expand Up @@ -98,70 +176,162 @@ TRACE_EVENT(sched_switch,
)
);

TRACE_EVENT_FORMAT(sched_migrate_task,
/*
* Tracepoint for a task being migrated:
*/
TRACE_EVENT(sched_migrate_task,

TP_PROTO(struct task_struct *p, int orig_cpu, int dest_cpu),

TP_ARGS(p, orig_cpu, dest_cpu),
TP_FMT("task %s:%d from: %d to: %d",
p->comm, p->pid, orig_cpu, dest_cpu),
TRACE_STRUCT(
TRACE_FIELD(pid_t, pid, p->pid)
TRACE_FIELD(int, orig_cpu, orig_cpu)
TRACE_FIELD(int, dest_cpu, dest_cpu)

TP_STRUCT__entry(
__array( char, comm, TASK_COMM_LEN )
__field( pid_t, pid )
__field( int, prio )
__field( int, orig_cpu )
__field( int, dest_cpu )
),
TP_RAW_FMT("task %d from: %d to: %d")
);

TRACE_EVENT_FORMAT(sched_process_free,
TP_printk("task %s:%d [%d] from: %d to: %d",
__entry->comm, __entry->pid, __entry->prio,
__entry->orig_cpu, __entry->dest_cpu),

TP_fast_assign(
memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
__entry->pid = p->pid;
__entry->prio = p->prio;
__entry->orig_cpu = orig_cpu;
__entry->dest_cpu = dest_cpu;
)
);

/*
* Tracepoint for freeing a task:
*/
TRACE_EVENT(sched_process_free,

TP_PROTO(struct task_struct *p),

TP_ARGS(p),
TP_FMT("task %s:%d", p->comm, p->pid),
TRACE_STRUCT(
TRACE_FIELD(pid_t, pid, p->pid)

TP_STRUCT__entry(
__array( char, comm, TASK_COMM_LEN )
__field( pid_t, pid )
__field( int, prio )
),
TP_RAW_FMT("task %d")
);

TRACE_EVENT_FORMAT(sched_process_exit,
TP_printk("task %s:%d [%d]",
__entry->comm, __entry->pid, __entry->prio),

TP_fast_assign(
memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
__entry->pid = p->pid;
__entry->prio = p->prio;
)
);

/*
* Tracepoint for a task exiting:
*/
TRACE_EVENT(sched_process_exit,

TP_PROTO(struct task_struct *p),

TP_ARGS(p),
TP_FMT("task %s:%d", p->comm, p->pid),
TRACE_STRUCT(
TRACE_FIELD(pid_t, pid, p->pid)

TP_STRUCT__entry(
__array( char, comm, TASK_COMM_LEN )
__field( pid_t, pid )
__field( int, prio )
),
TP_RAW_FMT("task %d")
);

TRACE_EVENT_FORMAT(sched_process_wait,
TP_printk("task %s:%d [%d]",
__entry->comm, __entry->pid, __entry->prio),

TP_fast_assign(
memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
__entry->pid = p->pid;
__entry->prio = p->prio;
)
);

/*
* Tracepoint for a waiting task:
*/
TRACE_EVENT(sched_process_wait,

TP_PROTO(struct pid *pid),

TP_ARGS(pid),
TP_FMT("pid %d", pid_nr(pid)),
TRACE_STRUCT(
TRACE_FIELD(pid_t, pid, pid_nr(pid))

TP_STRUCT__entry(
__array( char, comm, TASK_COMM_LEN )
__field( pid_t, pid )
__field( int, prio )
),
TP_RAW_FMT("task %d")
);

TRACE_EVENT_FORMAT(sched_process_fork,
TP_printk("task %s:%d [%d]",
__entry->comm, __entry->pid, __entry->prio),

TP_fast_assign(
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
__entry->pid = pid_nr(pid);
__entry->prio = current->prio;
)
);

/*
* Tracepoint for do_fork:
*/
TRACE_EVENT(sched_process_fork,

TP_PROTO(struct task_struct *parent, struct task_struct *child),

TP_ARGS(parent, child),
TP_FMT("parent %s:%d child %s:%d",
parent->comm, parent->pid, child->comm, child->pid),
TRACE_STRUCT(
TRACE_FIELD(pid_t, parent, parent->pid)
TRACE_FIELD(pid_t, child, child->pid)

TP_STRUCT__entry(
__array( char, parent_comm, TASK_COMM_LEN )
__field( pid_t, parent_pid )
__array( char, child_comm, TASK_COMM_LEN )
__field( pid_t, child_pid )
),
TP_RAW_FMT("parent %d child %d")
);

TRACE_EVENT_FORMAT(sched_signal_send,
TP_printk("parent %s:%d child %s:%d",
__entry->parent_comm, __entry->parent_pid,
__entry->child_comm, __entry->child_pid),

TP_fast_assign(
memcpy(__entry->parent_comm, parent->comm, TASK_COMM_LEN);
__entry->parent_pid = parent->pid;
memcpy(__entry->child_comm, child->comm, TASK_COMM_LEN);
__entry->child_pid = child->pid;
)
);

/*
* Tracepoint for sending a signal:
*/
TRACE_EVENT(sched_signal_send,

TP_PROTO(int sig, struct task_struct *p),

TP_ARGS(sig, p),
TP_FMT("sig: %d task %s:%d", sig, p->comm, p->pid),
TRACE_STRUCT(
TRACE_FIELD(int, sig, sig)
TRACE_FIELD(pid_t, pid, p->pid)

TP_STRUCT__entry(
__field( int, sig )
__array( char, comm, TASK_COMM_LEN )
__field( pid_t, pid )
),
TP_RAW_FMT("sig: %d task %d")
);

TP_printk("sig: %d task %s:%d",
__entry->sig, __entry->comm, __entry->pid),

TP_fast_assign(
memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
__entry->pid = p->pid;
__entry->sig = sig;
)
);

#undef TRACE_SYSTEM

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