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-rw-r--r--include/trace/sched.h333
1 files changed, 330 insertions, 3 deletions
diff --git a/include/trace/sched.h b/include/trace/sched.h
index 4e372a1a29bf..5b1cf4a28463 100644
--- a/include/trace/sched.h
+++ b/include/trace/sched.h
@@ -1,9 +1,336 @@
1#ifndef _TRACE_SCHED_H 1#if !defined(_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ)
2#define _TRACE_SCHED_H 2#define _TRACE_SCHED_H
3 3
4#include <linux/sched.h> 4#include <linux/sched.h>
5#include <linux/tracepoint.h> 5#include <linux/tracepoint.h>
6 6
7#include <trace/sched_event_types.h> 7#undef TRACE_SYSTEM
8#define TRACE_SYSTEM sched
8 9
9#endif 10/*
11 * Tracepoint for calling kthread_stop, performed to end a kthread:
12 */
13TRACE_EVENT(sched_kthread_stop,
14
15 TP_PROTO(struct task_struct *t),
16
17 TP_ARGS(t),
18
19 TP_STRUCT__entry(
20 __array( char, comm, TASK_COMM_LEN )
21 __field( pid_t, pid )
22 ),
23
24 TP_fast_assign(
25 memcpy(__entry->comm, t->comm, TASK_COMM_LEN);
26 __entry->pid = t->pid;
27 ),
28
29 TP_printk("task %s:%d", __entry->comm, __entry->pid)
30);
31
32/*
33 * Tracepoint for the return value of the kthread stopping:
34 */
35TRACE_EVENT(sched_kthread_stop_ret,
36
37 TP_PROTO(int ret),
38
39 TP_ARGS(ret),
40
41 TP_STRUCT__entry(
42 __field( int, ret )
43 ),
44
45 TP_fast_assign(
46 __entry->ret = ret;
47 ),
48
49 TP_printk("ret %d", __entry->ret)
50);
51
52/*
53 * Tracepoint for waiting on task to unschedule:
54 *
55 * (NOTE: the 'rq' argument is not used by generic trace events,
56 * but used by the latency tracer plugin. )
57 */
58TRACE_EVENT(sched_wait_task,
59
60 TP_PROTO(struct rq *rq, struct task_struct *p),
61
62 TP_ARGS(rq, p),
63
64 TP_STRUCT__entry(
65 __array( char, comm, TASK_COMM_LEN )
66 __field( pid_t, pid )
67 __field( int, prio )
68 ),
69
70 TP_fast_assign(
71 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
72 __entry->pid = p->pid;
73 __entry->prio = p->prio;
74 ),
75
76 TP_printk("task %s:%d [%d]",
77 __entry->comm, __entry->pid, __entry->prio)
78);
79
80/*
81 * Tracepoint for waking up a task:
82 *
83 * (NOTE: the 'rq' argument is not used by generic trace events,
84 * but used by the latency tracer plugin. )
85 */
86TRACE_EVENT(sched_wakeup,
87
88 TP_PROTO(struct rq *rq, struct task_struct *p, int success),
89
90 TP_ARGS(rq, p, success),
91
92 TP_STRUCT__entry(
93 __array( char, comm, TASK_COMM_LEN )
94 __field( pid_t, pid )
95 __field( int, prio )
96 __field( int, success )
97 ),
98
99 TP_fast_assign(
100 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
101 __entry->pid = p->pid;
102 __entry->prio = p->prio;
103 __entry->success = success;
104 ),
105
106 TP_printk("task %s:%d [%d] success=%d",
107 __entry->comm, __entry->pid, __entry->prio,
108 __entry->success)
109);
110
111/*
112 * Tracepoint for waking up a new task:
113 *
114 * (NOTE: the 'rq' argument is not used by generic trace events,
115 * but used by the latency tracer plugin. )
116 */
117TRACE_EVENT(sched_wakeup_new,
118
119 TP_PROTO(struct rq *rq, struct task_struct *p, int success),
120
121 TP_ARGS(rq, p, success),
122
123 TP_STRUCT__entry(
124 __array( char, comm, TASK_COMM_LEN )
125 __field( pid_t, pid )
126 __field( int, prio )
127 __field( int, success )
128 ),
129
130 TP_fast_assign(
131 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
132 __entry->pid = p->pid;
133 __entry->prio = p->prio;
134 __entry->success = success;
135 ),
136
137 TP_printk("task %s:%d [%d] success=%d",
138 __entry->comm, __entry->pid, __entry->prio,
139 __entry->success)
140);
141
142/*
143 * Tracepoint for task switches, performed by the scheduler:
144 *
145 * (NOTE: the 'rq' argument is not used by generic trace events,
146 * but used by the latency tracer plugin. )
147 */
148TRACE_EVENT(sched_switch,
149
150 TP_PROTO(struct rq *rq, struct task_struct *prev,
151 struct task_struct *next),
152
153 TP_ARGS(rq, prev, next),
154
155 TP_STRUCT__entry(
156 __array( char, prev_comm, TASK_COMM_LEN )
157 __field( pid_t, prev_pid )
158 __field( int, prev_prio )
159 __array( char, next_comm, TASK_COMM_LEN )
160 __field( pid_t, next_pid )
161 __field( int, next_prio )
162 ),
163
164 TP_fast_assign(
165 memcpy(__entry->next_comm, next->comm, TASK_COMM_LEN);
166 __entry->prev_pid = prev->pid;
167 __entry->prev_prio = prev->prio;
168 memcpy(__entry->prev_comm, prev->comm, TASK_COMM_LEN);
169 __entry->next_pid = next->pid;
170 __entry->next_prio = next->prio;
171 ),
172
173 TP_printk("task %s:%d [%d] ==> %s:%d [%d]",
174 __entry->prev_comm, __entry->prev_pid, __entry->prev_prio,
175 __entry->next_comm, __entry->next_pid, __entry->next_prio)
176);
177
178/*
179 * Tracepoint for a task being migrated:
180 */
181TRACE_EVENT(sched_migrate_task,
182
183 TP_PROTO(struct task_struct *p, int orig_cpu, int dest_cpu),
184
185 TP_ARGS(p, orig_cpu, dest_cpu),
186
187 TP_STRUCT__entry(
188 __array( char, comm, TASK_COMM_LEN )
189 __field( pid_t, pid )
190 __field( int, prio )
191 __field( int, orig_cpu )
192 __field( int, dest_cpu )
193 ),
194
195 TP_fast_assign(
196 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
197 __entry->pid = p->pid;
198 __entry->prio = p->prio;
199 __entry->orig_cpu = orig_cpu;
200 __entry->dest_cpu = dest_cpu;
201 ),
202
203 TP_printk("task %s:%d [%d] from: %d to: %d",
204 __entry->comm, __entry->pid, __entry->prio,
205 __entry->orig_cpu, __entry->dest_cpu)
206);
207
208/*
209 * Tracepoint for freeing a task:
210 */
211TRACE_EVENT(sched_process_free,
212
213 TP_PROTO(struct task_struct *p),
214
215 TP_ARGS(p),
216
217 TP_STRUCT__entry(
218 __array( char, comm, TASK_COMM_LEN )
219 __field( pid_t, pid )
220 __field( int, prio )
221 ),
222
223 TP_fast_assign(
224 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
225 __entry->pid = p->pid;
226 __entry->prio = p->prio;
227 ),
228
229 TP_printk("task %s:%d [%d]",
230 __entry->comm, __entry->pid, __entry->prio)
231);
232
233/*
234 * Tracepoint for a task exiting:
235 */
236TRACE_EVENT(sched_process_exit,
237
238 TP_PROTO(struct task_struct *p),
239
240 TP_ARGS(p),
241
242 TP_STRUCT__entry(
243 __array( char, comm, TASK_COMM_LEN )
244 __field( pid_t, pid )
245 __field( int, prio )
246 ),
247
248 TP_fast_assign(
249 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
250 __entry->pid = p->pid;
251 __entry->prio = p->prio;
252 ),
253
254 TP_printk("task %s:%d [%d]",
255 __entry->comm, __entry->pid, __entry->prio)
256);
257
258/*
259 * Tracepoint for a waiting task:
260 */
261TRACE_EVENT(sched_process_wait,
262
263 TP_PROTO(struct pid *pid),
264
265 TP_ARGS(pid),
266
267 TP_STRUCT__entry(
268 __array( char, comm, TASK_COMM_LEN )
269 __field( pid_t, pid )
270 __field( int, prio )
271 ),
272
273 TP_fast_assign(
274 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
275 __entry->pid = pid_nr(pid);
276 __entry->prio = current->prio;
277 ),
278
279 TP_printk("task %s:%d [%d]",
280 __entry->comm, __entry->pid, __entry->prio)
281);
282
283/*
284 * Tracepoint for do_fork:
285 */
286TRACE_EVENT(sched_process_fork,
287
288 TP_PROTO(struct task_struct *parent, struct task_struct *child),
289
290 TP_ARGS(parent, child),
291
292 TP_STRUCT__entry(
293 __array( char, parent_comm, TASK_COMM_LEN )
294 __field( pid_t, parent_pid )
295 __array( char, child_comm, TASK_COMM_LEN )
296 __field( pid_t, child_pid )
297 ),
298
299 TP_fast_assign(
300 memcpy(__entry->parent_comm, parent->comm, TASK_COMM_LEN);
301 __entry->parent_pid = parent->pid;
302 memcpy(__entry->child_comm, child->comm, TASK_COMM_LEN);
303 __entry->child_pid = child->pid;
304 ),
305
306 TP_printk("parent %s:%d child %s:%d",
307 __entry->parent_comm, __entry->parent_pid,
308 __entry->child_comm, __entry->child_pid)
309);
310
311/*
312 * Tracepoint for sending a signal:
313 */
314TRACE_EVENT(sched_signal_send,
315
316 TP_PROTO(int sig, struct task_struct *p),
317
318 TP_ARGS(sig, p),
319
320 TP_STRUCT__entry(
321 __field( int, sig )
322 __array( char, comm, TASK_COMM_LEN )
323 __field( pid_t, pid )
324 ),
325
326 TP_fast_assign(
327 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
328 __entry->pid = p->pid;
329 __entry->sig = sig;
330 ),
331
332 TP_printk("sig: %d task %s:%d",
333 __entry->sig, __entry->comm, __entry->pid)
334);
335
336#endif /* _TRACE_SCHED_H */
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