[PATCH 09/10] tracing: create the C style tracing for the sched subsystem

Steven Rostedt
2009-02-28T09:14:26Z

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From: Steven Rostedt <srostedt@redhat.com>

This patch utilizes the TRACE_EVENT_FORMAT macro to enable the C style
faster tracing for the sched subsystem trace points.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
---
include/linux/tracepoint.h | 3 +
include/trace/sched_event_types.h | 119 +++++++++++++++++++++++++++++--------
2 files changed, 97 insertions(+), 25 deletions(-)

diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index 62d1339..152b2f0 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -157,4 +157,7 @@ static inline void tracepoint_synchronize_unregister(void)
#define TRACE_FORMAT(name, proto, args, fmt) \
DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))

+#define TRACE_EVENT_FORMAT(name, proto, args, fmt, struct, tpfmt) \
+ TRACE_FORMAT(name, PARAMS(proto), PARAMS(args), PARAMS(fmt))
+
#endif
diff --git a/include/trace/sched_event_types.h b/include/trace/sched_event_types.h
index 2ada206..ba059c1 100644
--- a/include/trace/sched_event_types.h
+++ b/include/trace/sched_event_types.h
@@ -1,6 +1,6 @@

/* use <trace/sched.h> instead */
-#ifndef TRACE_FORMAT
+#ifndef TRACE_EVENT_FORMAT
# error Do not include this file directly.
# error Unless you know what you are doing.
#endif
@@ -8,70 +8,139 @@
#undef TRACE_SYSTEM
#define TRACE_SYSTEM sched

-TRACE_FORMAT(sched_kthread_stop,
+TRACE_EVENT_FORMAT(sched_kthread_stop,
TPPROTO(struct task_struct *t),
TPARGS(t),
- TPFMT("task %s:%d", t->comm, t->pid));
+ TPFMT("task %s:%d", t->comm, t->pid),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, pid, t->pid)
+ ),
+ TPRAWFMT("task %d")
+ );

-TRACE_FORMAT(sched_kthread_stop_ret,
+TRACE_EVENT_FORMAT(sched_kthread_stop_ret,
TPPROTO(int ret),
TPARGS(ret),
- TPFMT("ret=%d", ret));
+ TPFMT("ret=%d", ret),
+ TRACE_STRUCT(
+ TRACE_FIELD(int, ret, ret)
+ ),
+ TPRAWFMT("ret=%d")
+ );

-TRACE_FORMAT(sched_wait_task,
+TRACE_EVENT_FORMAT(sched_wait_task,
TPPROTO(struct rq *rq, struct task_struct *p),
TPARGS(rq, p),
- TPFMT("task %s:%d", p->comm, p->pid));
+ TPFMT("task %s:%d", p->comm, p->pid),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, pid, p->pid)
+ ),
+ TPRAWFMT("task %d")
+ );

-TRACE_FORMAT(sched_wakeup,
+TRACE_EVENT_FORMAT(sched_wakeup,
TPPROTO(struct rq *rq, struct task_struct *p, int success),
TPARGS(rq, p, success),
TPFMT("task %s:%d %s",
- p->comm, p->pid, success?"succeeded":"failed"));
+ p->comm, p->pid, success ? "succeeded" : "failed"),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, pid, p->pid)
+ TRACE_FIELD(int, success, success)
+ ),
+ TPRAWFMT("task %d success=%d")
+ );

-TRACE_FORMAT(sched_wakeup_new,
+TRACE_EVENT_FORMAT(sched_wakeup_new,
TPPROTO(struct rq *rq, struct task_struct *p, int success),
TPARGS(rq, p, success),
TPFMT("task %s:%d",
- p->comm, p->pid, success?"succeeded":"failed"));
+ p->comm, p->pid, success ? "succeeded" : "failed"),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, pid, p->pid)
+ TRACE_FIELD(int, success, success)
+ ),
+ TPRAWFMT("task %d success=%d")
+ );

-TRACE_FORMAT(sched_switch,
+TRACE_EVENT_FORMAT(sched_switch,
TPPROTO(struct rq *rq, struct task_struct *prev,
struct task_struct *next),
TPARGS(rq, prev, next),
TPFMT("task %s:%d ==> %s:%d",
- prev->comm, prev->pid, next->comm, next->pid));
+ prev->comm, prev->pid, next->comm, next->pid),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, prev_pid, prev->pid)
+ TRACE_FIELD(int, prev_prio, prev->prio)
+ TRACE_FIELD(pid_t, next_pid, next->pid)
+ TRACE_FIELD(int, next_prio, next->prio)
+ ),
+ TPRAWFMT("prev %d:%d ==> next %d:%d")
+ );

-TRACE_FORMAT(sched_migrate_task,
+TRACE_EVENT_FORMAT(sched_migrate_task,
TPPROTO(struct task_struct *p, int orig_cpu, int dest_cpu),
TPARGS(p, orig_cpu, dest_cpu),
TPFMT("task %s:%d from: %d to: %d",
- p->comm, p->pid, orig_cpu, dest_cpu));
+ 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)
+ ),
+ TPRAWFMT("task %d from: %d to: %d")
+ );

-TRACE_FORMAT(sched_process_free,
+TRACE_EVENT_FORMAT(sched_process_free,
TPPROTO(struct task_struct *p),
TPARGS(p),
- TPFMT("task %s:%d", p->comm, p->pid));
+ TPFMT("task %s:%d", p->comm, p->pid),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, pid, p->pid)
+ ),
+ TPRAWFMT("task %d")
+ );

-TRACE_FORMAT(sched_process_exit,
+TRACE_EVENT_FORMAT(sched_process_exit,
TPPROTO(struct task_struct *p),
TPARGS(p),
- TPFMT("task %s:%d", p->comm, p->pid));
+ TPFMT("task %s:%d", p->comm, p->pid),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, pid, p->pid)
+ ),
+ TPRAWFMT("task %d")
+ );

-TRACE_FORMAT(sched_process_wait,
+TRACE_EVENT_FORMAT(sched_process_wait,
TPPROTO(struct pid *pid),
TPARGS(pid),
- TPFMT("pid %d", pid));
+ TPFMT("pid %d", pid_nr(pid)),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, pid, pid_nr(pid))
+ ),
+ TPRAWFMT("task %d")
+ );

-TRACE_FORMAT(sched_process_fork,
+TRACE_EVENT_FORMAT(sched_process_fork,
TPPROTO(struct task_struct *parent, struct task_struct *child),
TPARGS(parent, child),
TPFMT("parent %s:%d child %s:%d",
- parent->comm, parent->pid, child->comm, child->pid));
+ parent->comm, parent->pid, child->comm, child->pid),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, parent, parent->pid)
+ TRACE_FIELD(pid_t, child, child->pid)
+ ),
+ TPRAWFMT("parent %d child %d")
+ );

-TRACE_FORMAT(sched_signal_send,
+TRACE_EVENT_FORMAT(sched_signal_send,
TPPROTO(int sig, struct task_struct *p),
TPARGS(sig, p),
- TPFMT("sig: %d task %s:%d", sig, p->comm, p->pid));
+ TPFMT("sig: %d task %s:%d", sig, p->comm, p->pid),
+ TRACE_STRUCT(
+ TRACE_FIELD(int, sig, sig)
+ TRACE_FIELD(pid_t, pid, p->pid)
+ ),
+ TPRAWFMT("sig: %d task %d")
+ );

#undef TRACE_SYSTEM
--
1.5.6.5

--