Linux 3.11-rc5
[deliverable/linux.git] / include / trace / events / sched.h
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1#undef TRACE_SYSTEM
2#define TRACE_SYSTEM sched
3
ea20d929 4#if !defined(_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ)
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5#define _TRACE_SCHED_H
6
7#include <linux/sched.h>
8#include <linux/tracepoint.h>
4ff16c25 9#include <linux/binfmts.h>
0a16b607 10
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11/*
12 * Tracepoint for calling kthread_stop, performed to end a kthread:
13 */
14TRACE_EVENT(sched_kthread_stop,
15
16 TP_PROTO(struct task_struct *t),
17
18 TP_ARGS(t),
19
20 TP_STRUCT__entry(
21 __array( char, comm, TASK_COMM_LEN )
22 __field( pid_t, pid )
23 ),
24
25 TP_fast_assign(
26 memcpy(__entry->comm, t->comm, TASK_COMM_LEN);
27 __entry->pid = t->pid;
28 ),
29
434a83c3 30 TP_printk("comm=%s pid=%d", __entry->comm, __entry->pid)
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31);
32
33/*
34 * Tracepoint for the return value of the kthread stopping:
35 */
36TRACE_EVENT(sched_kthread_stop_ret,
37
38 TP_PROTO(int ret),
39
40 TP_ARGS(ret),
41
42 TP_STRUCT__entry(
43 __field( int, ret )
44 ),
45
46 TP_fast_assign(
47 __entry->ret = ret;
48 ),
49
434a83c3 50 TP_printk("ret=%d", __entry->ret)
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51);
52
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53/*
54 * Tracepoint for waking up a task:
ea20d929 55 */
091ad365 56DECLARE_EVENT_CLASS(sched_wakeup_template,
ea20d929 57
27a9da65 58 TP_PROTO(struct task_struct *p, int success),
ea20d929 59
27a9da65 60 TP_ARGS(p, success),
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61
62 TP_STRUCT__entry(
63 __array( char, comm, TASK_COMM_LEN )
64 __field( pid_t, pid )
65 __field( int, prio )
66 __field( int, success )
434a83c3 67 __field( int, target_cpu )
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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 __entry->success = success;
434a83c3 75 __entry->target_cpu = task_cpu(p);
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76 )
77 TP_perf_assign(
78 __perf_task(p);
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79 ),
80
434a83c3 81 TP_printk("comm=%s pid=%d prio=%d success=%d target_cpu=%03d",
ea20d929 82 __entry->comm, __entry->pid, __entry->prio,
434a83c3 83 __entry->success, __entry->target_cpu)
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84);
85
75ec29ab 86DEFINE_EVENT(sched_wakeup_template, sched_wakeup,
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87 TP_PROTO(struct task_struct *p, int success),
88 TP_ARGS(p, success));
75ec29ab 89
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90/*
91 * Tracepoint for waking up a new task:
ea20d929 92 */
75ec29ab 93DEFINE_EVENT(sched_wakeup_template, sched_wakeup_new,
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94 TP_PROTO(struct task_struct *p, int success),
95 TP_ARGS(p, success));
ea20d929 96
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97#ifdef CREATE_TRACE_POINTS
98static inline long __trace_sched_switch_state(struct task_struct *p)
99{
100 long state = p->state;
101
102#ifdef CONFIG_PREEMPT
103 /*
104 * For all intents and purposes a preempted task is a running task.
105 */
106 if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE)
557ab425 107 state = TASK_RUNNING | TASK_STATE_MAX;
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108#endif
109
110 return state;
111}
112#endif
113
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114/*
115 * Tracepoint for task switches, performed by the scheduler:
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116 */
117TRACE_EVENT(sched_switch,
118
27a9da65 119 TP_PROTO(struct task_struct *prev,
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120 struct task_struct *next),
121
27a9da65 122 TP_ARGS(prev, next),
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123
124 TP_STRUCT__entry(
125 __array( char, prev_comm, TASK_COMM_LEN )
126 __field( pid_t, prev_pid )
127 __field( int, prev_prio )
937cdb9d 128 __field( long, prev_state )
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129 __array( char, next_comm, TASK_COMM_LEN )
130 __field( pid_t, next_pid )
131 __field( int, next_prio )
132 ),
133
134 TP_fast_assign(
135 memcpy(__entry->next_comm, next->comm, TASK_COMM_LEN);
136 __entry->prev_pid = prev->pid;
137 __entry->prev_prio = prev->prio;
02f72694 138 __entry->prev_state = __trace_sched_switch_state(prev);
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139 memcpy(__entry->prev_comm, prev->comm, TASK_COMM_LEN);
140 __entry->next_pid = next->pid;
141 __entry->next_prio = next->prio;
142 ),
143
557ab425 144 TP_printk("prev_comm=%s prev_pid=%d prev_prio=%d prev_state=%s%s ==> next_comm=%s next_pid=%d next_prio=%d",
ea20d929 145 __entry->prev_comm, __entry->prev_pid, __entry->prev_prio,
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146 __entry->prev_state & (TASK_STATE_MAX-1) ?
147 __print_flags(__entry->prev_state & (TASK_STATE_MAX-1), "|",
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148 { 1, "S"} , { 2, "D" }, { 4, "T" }, { 8, "t" },
149 { 16, "Z" }, { 32, "X" }, { 64, "x" },
f2530dc7 150 { 128, "K" }, { 256, "W" }, { 512, "P" }) : "R",
557ab425 151 __entry->prev_state & TASK_STATE_MAX ? "+" : "",
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152 __entry->next_comm, __entry->next_pid, __entry->next_prio)
153);
154
155/*
156 * Tracepoint for a task being migrated:
157 */
158TRACE_EVENT(sched_migrate_task,
159
de1d7286 160 TP_PROTO(struct task_struct *p, int dest_cpu),
ea20d929 161
de1d7286 162 TP_ARGS(p, dest_cpu),
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163
164 TP_STRUCT__entry(
165 __array( char, comm, TASK_COMM_LEN )
166 __field( pid_t, pid )
167 __field( int, prio )
168 __field( int, orig_cpu )
169 __field( int, dest_cpu )
170 ),
171
172 TP_fast_assign(
173 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
174 __entry->pid = p->pid;
175 __entry->prio = p->prio;
de1d7286 176 __entry->orig_cpu = task_cpu(p);
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177 __entry->dest_cpu = dest_cpu;
178 ),
179
434a83c3 180 TP_printk("comm=%s pid=%d prio=%d orig_cpu=%d dest_cpu=%d",
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181 __entry->comm, __entry->pid, __entry->prio,
182 __entry->orig_cpu, __entry->dest_cpu)
183);
184
091ad365 185DECLARE_EVENT_CLASS(sched_process_template,
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186
187 TP_PROTO(struct task_struct *p),
188
189 TP_ARGS(p),
190
191 TP_STRUCT__entry(
192 __array( char, comm, TASK_COMM_LEN )
193 __field( pid_t, pid )
194 __field( int, prio )
195 ),
196
197 TP_fast_assign(
198 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
199 __entry->pid = p->pid;
200 __entry->prio = p->prio;
201 ),
202
434a83c3 203 TP_printk("comm=%s pid=%d prio=%d",
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204 __entry->comm, __entry->pid, __entry->prio)
205);
206
207/*
75ec29ab 208 * Tracepoint for freeing a task:
ea20d929 209 */
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210DEFINE_EVENT(sched_process_template, sched_process_free,
211 TP_PROTO(struct task_struct *p),
212 TP_ARGS(p));
213
ea20d929 214
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215/*
216 * Tracepoint for a task exiting:
217 */
218DEFINE_EVENT(sched_process_template, sched_process_exit,
219 TP_PROTO(struct task_struct *p),
220 TP_ARGS(p));
ea20d929 221
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222/*
223 * Tracepoint for waiting on task to unschedule:
224 */
225DEFINE_EVENT(sched_process_template, sched_wait_task,
226 TP_PROTO(struct task_struct *p),
227 TP_ARGS(p));
228
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229/*
230 * Tracepoint for a waiting task:
231 */
232TRACE_EVENT(sched_process_wait,
233
234 TP_PROTO(struct pid *pid),
235
236 TP_ARGS(pid),
237
238 TP_STRUCT__entry(
239 __array( char, comm, TASK_COMM_LEN )
240 __field( pid_t, pid )
241 __field( int, prio )
242 ),
243
244 TP_fast_assign(
245 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
246 __entry->pid = pid_nr(pid);
247 __entry->prio = current->prio;
248 ),
249
434a83c3 250 TP_printk("comm=%s pid=%d prio=%d",
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251 __entry->comm, __entry->pid, __entry->prio)
252);
253
254/*
255 * Tracepoint for do_fork:
256 */
257TRACE_EVENT(sched_process_fork,
258
259 TP_PROTO(struct task_struct *parent, struct task_struct *child),
260
261 TP_ARGS(parent, child),
262
263 TP_STRUCT__entry(
264 __array( char, parent_comm, TASK_COMM_LEN )
265 __field( pid_t, parent_pid )
266 __array( char, child_comm, TASK_COMM_LEN )
267 __field( pid_t, child_pid )
268 ),
269
270 TP_fast_assign(
271 memcpy(__entry->parent_comm, parent->comm, TASK_COMM_LEN);
272 __entry->parent_pid = parent->pid;
273 memcpy(__entry->child_comm, child->comm, TASK_COMM_LEN);
274 __entry->child_pid = child->pid;
275 ),
276
434a83c3 277 TP_printk("comm=%s pid=%d child_comm=%s child_pid=%d",
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278 __entry->parent_comm, __entry->parent_pid,
279 __entry->child_comm, __entry->child_pid)
280);
281
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282/*
283 * Tracepoint for exec:
284 */
285TRACE_EVENT(sched_process_exec,
286
287 TP_PROTO(struct task_struct *p, pid_t old_pid,
288 struct linux_binprm *bprm),
289
290 TP_ARGS(p, old_pid, bprm),
291
292 TP_STRUCT__entry(
293 __string( filename, bprm->filename )
294 __field( pid_t, pid )
295 __field( pid_t, old_pid )
296 ),
297
298 TP_fast_assign(
299 __assign_str(filename, bprm->filename);
300 __entry->pid = p->pid;
6308191f 301 __entry->old_pid = old_pid;
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302 ),
303
304 TP_printk("filename=%s pid=%d old_pid=%d", __get_str(filename),
305 __entry->pid, __entry->old_pid)
306);
307
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308/*
309 * XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
310 * adding sched_stat support to SCHED_FIFO/RR would be welcome.
311 */
091ad365 312DECLARE_EVENT_CLASS(sched_stat_template,
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313
314 TP_PROTO(struct task_struct *tsk, u64 delay),
315
316 TP_ARGS(tsk, delay),
317
318 TP_STRUCT__entry(
319 __array( char, comm, TASK_COMM_LEN )
320 __field( pid_t, pid )
321 __field( u64, delay )
322 ),
323
324 TP_fast_assign(
325 memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
326 __entry->pid = tsk->pid;
327 __entry->delay = delay;
328 )
329 TP_perf_assign(
330 __perf_count(delay);
e6dab5ff 331 __perf_task(tsk);
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332 ),
333
434a83c3 334 TP_printk("comm=%s pid=%d delay=%Lu [ns]",
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335 __entry->comm, __entry->pid,
336 (unsigned long long)__entry->delay)
337);
338
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339
340/*
341 * Tracepoint for accounting wait time (time the task is runnable
342 * but not actually running due to scheduler contention).
343 */
344DEFINE_EVENT(sched_stat_template, sched_stat_wait,
345 TP_PROTO(struct task_struct *tsk, u64 delay),
346 TP_ARGS(tsk, delay));
347
348/*
349 * Tracepoint for accounting sleep time (time the task is not runnable,
350 * including iowait, see below).
351 */
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352DEFINE_EVENT(sched_stat_template, sched_stat_sleep,
353 TP_PROTO(struct task_struct *tsk, u64 delay),
354 TP_ARGS(tsk, delay));
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355
356/*
357 * Tracepoint for accounting iowait time (time the task is not runnable
358 * due to waiting on IO to complete).
359 */
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360DEFINE_EVENT(sched_stat_template, sched_stat_iowait,
361 TP_PROTO(struct task_struct *tsk, u64 delay),
362 TP_ARGS(tsk, delay));
75ec29ab 363
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364/*
365 * Tracepoint for accounting blocked time (time the task is in uninterruptible).
366 */
367DEFINE_EVENT(sched_stat_template, sched_stat_blocked,
368 TP_PROTO(struct task_struct *tsk, u64 delay),
369 TP_ARGS(tsk, delay));
370
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371/*
372 * Tracepoint for accounting runtime (time the task is executing
373 * on a CPU).
374 */
375TRACE_EVENT(sched_stat_runtime,
376
377 TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),
378
379 TP_ARGS(tsk, runtime, vruntime),
380
381 TP_STRUCT__entry(
382 __array( char, comm, TASK_COMM_LEN )
383 __field( pid_t, pid )
384 __field( u64, runtime )
385 __field( u64, vruntime )
386 ),
387
388 TP_fast_assign(
389 memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
390 __entry->pid = tsk->pid;
391 __entry->runtime = runtime;
392 __entry->vruntime = vruntime;
393 )
394 TP_perf_assign(
395 __perf_count(runtime);
396 ),
397
434a83c3 398 TP_printk("comm=%s pid=%d runtime=%Lu [ns] vruntime=%Lu [ns]",
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399 __entry->comm, __entry->pid,
400 (unsigned long long)__entry->runtime,
401 (unsigned long long)__entry->vruntime)
402);
403
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404/*
405 * Tracepoint for showing priority inheritance modifying a tasks
406 * priority.
407 */
408TRACE_EVENT(sched_pi_setprio,
409
410 TP_PROTO(struct task_struct *tsk, int newprio),
411
412 TP_ARGS(tsk, newprio),
413
414 TP_STRUCT__entry(
415 __array( char, comm, TASK_COMM_LEN )
416 __field( pid_t, pid )
417 __field( int, oldprio )
418 __field( int, newprio )
419 ),
420
421 TP_fast_assign(
422 memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
423 __entry->pid = tsk->pid;
424 __entry->oldprio = tsk->prio;
425 __entry->newprio = newprio;
426 ),
427
428 TP_printk("comm=%s pid=%d oldprio=%d newprio=%d",
429 __entry->comm, __entry->pid,
430 __entry->oldprio, __entry->newprio)
431);
432
ea20d929 433#endif /* _TRACE_SCHED_H */
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434
435/* This part must be outside protection */
436#include <trace/define_trace.h>
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