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1#undef TRACE_SYSTEM
2#define TRACE_SYSTEM sched
3
4#if !defined(_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ)
5#define _TRACE_SCHED_H
6
7#include <linux/sched.h>
8#include <linux/tracepoint.h>
9
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("comm=%s pid=%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 waking up a task:
54 */
55DECLARE_EVENT_CLASS(sched_wakeup_template,
56
57 TP_PROTO(struct task_struct *p, int success),
58
59 TP_ARGS(p, success),
60
61 TP_STRUCT__entry(
62 __array( char, comm, TASK_COMM_LEN )
63 __field( pid_t, pid )
64 __field( int, prio )
65 __field( int, success )
66 __field( int, target_cpu )
67 ),
68
69 TP_fast_assign(
70 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
71 __entry->pid = p->pid;
72 __entry->prio = p->prio;
73 __entry->success = success;
74 __entry->target_cpu = task_cpu(p);
75 ),
76
77 TP_printk("comm=%s pid=%d prio=%d success=%d target_cpu=%03d",
78 __entry->comm, __entry->pid, __entry->prio,
79 __entry->success, __entry->target_cpu)
80);
81
82DEFINE_EVENT(sched_wakeup_template, sched_wakeup,
83 TP_PROTO(struct task_struct *p, int success),
84 TP_ARGS(p, success));
85
86/*
87 * Tracepoint for waking up a new task:
88 */
89DEFINE_EVENT(sched_wakeup_template, sched_wakeup_new,
90 TP_PROTO(struct task_struct *p, int success),
91 TP_ARGS(p, success));
92
93#ifdef CREATE_TRACE_POINTS
94static inline long __trace_sched_switch_state(struct task_struct *p)
95{
96 long state = p->state;
97
98#ifdef CONFIG_PREEMPT
99 /*
100 * For all intents and purposes a preempted task is a running task.
101 */
102 if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE)
103 state = TASK_RUNNING;
104#endif
105
106 return state;
107}
108#endif
109
110/*
111 * Tracepoint for task switches, performed by the scheduler:
112 */
113TRACE_EVENT(sched_switch,
114
115 TP_PROTO(struct task_struct *prev,
116 struct task_struct *next),
117
118 TP_ARGS(prev, next),
119
120 TP_STRUCT__entry(
121 __array( char, prev_comm, TASK_COMM_LEN )
122 __field( pid_t, prev_pid )
123 __field( int, prev_prio )
124 __field( long, prev_state )
125 __array( char, next_comm, TASK_COMM_LEN )
126 __field( pid_t, next_pid )
127 __field( int, next_prio )
128 ),
129
130 TP_fast_assign(
131 memcpy(__entry->next_comm, next->comm, TASK_COMM_LEN);
132 __entry->prev_pid = prev->pid;
133 __entry->prev_prio = prev->prio;
134 __entry->prev_state = __trace_sched_switch_state(prev);
135 memcpy(__entry->prev_comm, prev->comm, TASK_COMM_LEN);
136 __entry->next_pid = next->pid;
137 __entry->next_prio = next->prio;
138 ),
139
140 TP_printk("prev_comm=%s prev_pid=%d prev_prio=%d prev_state=%s ==> next_comm=%s next_pid=%d next_prio=%d",
141 __entry->prev_comm, __entry->prev_pid, __entry->prev_prio,
142 __entry->prev_state ?
143 __print_flags(__entry->prev_state, "|",
144 { 1, "S"} , { 2, "D" }, { 4, "T" }, { 8, "t" },
145 { 16, "Z" }, { 32, "X" }, { 64, "x" },
146 { 128, "W" }) : "R",
147 __entry->next_comm, __entry->next_pid, __entry->next_prio)
148);
149
150/*
151 * Tracepoint for a task being migrated:
152 */
153TRACE_EVENT(sched_migrate_task,
154
155 TP_PROTO(struct task_struct *p, int dest_cpu),
156
157 TP_ARGS(p, dest_cpu),
158
159 TP_STRUCT__entry(
160 __array( char, comm, TASK_COMM_LEN )
161 __field( pid_t, pid )
162 __field( int, prio )
163 __field( int, orig_cpu )
164 __field( int, dest_cpu )
165 ),
166
167 TP_fast_assign(
168 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
169 __entry->pid = p->pid;
170 __entry->prio = p->prio;
171 __entry->orig_cpu = task_cpu(p);
172 __entry->dest_cpu = dest_cpu;
173 ),
174
175 TP_printk("comm=%s pid=%d prio=%d orig_cpu=%d dest_cpu=%d",
176 __entry->comm, __entry->pid, __entry->prio,
177 __entry->orig_cpu, __entry->dest_cpu)
178);
179
180DECLARE_EVENT_CLASS(sched_process_template,
181
182 TP_PROTO(struct task_struct *p),
183
184 TP_ARGS(p),
185
186 TP_STRUCT__entry(
187 __array( char, comm, TASK_COMM_LEN )
188 __field( pid_t, pid )
189 __field( int, prio )
190 ),
191
192 TP_fast_assign(
193 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
194 __entry->pid = p->pid;
195 __entry->prio = p->prio;
196 ),
197
198 TP_printk("comm=%s pid=%d prio=%d",
199 __entry->comm, __entry->pid, __entry->prio)
200);
201
202/*
203 * Tracepoint for freeing a task:
204 */
205DEFINE_EVENT(sched_process_template, sched_process_free,
206 TP_PROTO(struct task_struct *p),
207 TP_ARGS(p));
208
209
210/*
211 * Tracepoint for a task exiting:
212 */
213DEFINE_EVENT(sched_process_template, sched_process_exit,
214 TP_PROTO(struct task_struct *p),
215 TP_ARGS(p));
216
217/*
218 * Tracepoint for waiting on task to unschedule:
219 */
220DEFINE_EVENT(sched_process_template, sched_wait_task,
221 TP_PROTO(struct task_struct *p),
222 TP_ARGS(p));
223
224/*
225 * Tracepoint for a waiting task:
226 */
227TRACE_EVENT(sched_process_wait,
228
229 TP_PROTO(struct pid *pid),
230
231 TP_ARGS(pid),
232
233 TP_STRUCT__entry(
234 __array( char, comm, TASK_COMM_LEN )
235 __field( pid_t, pid )
236 __field( int, prio )
237 ),
238
239 TP_fast_assign(
240 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
241 __entry->pid = pid_nr(pid);
242 __entry->prio = current->prio;
243 ),
244
245 TP_printk("comm=%s pid=%d prio=%d",
246 __entry->comm, __entry->pid, __entry->prio)
247);
248
249/*
250 * Tracepoint for do_fork:
251 */
252TRACE_EVENT(sched_process_fork,
253
254 TP_PROTO(struct task_struct *parent, struct task_struct *child),
255
256 TP_ARGS(parent, child),
257
258 TP_STRUCT__entry(
259 __array( char, parent_comm, TASK_COMM_LEN )
260 __field( pid_t, parent_pid )
261 __array( char, child_comm, TASK_COMM_LEN )
262 __field( pid_t, child_pid )
263 ),
264
265 TP_fast_assign(
266 memcpy(__entry->parent_comm, parent->comm, TASK_COMM_LEN);
267 __entry->parent_pid = parent->pid;
268 memcpy(__entry->child_comm, child->comm, TASK_COMM_LEN);
269 __entry->child_pid = child->pid;
270 ),
271
272 TP_printk("comm=%s pid=%d child_comm=%s child_pid=%d",
273 __entry->parent_comm, __entry->parent_pid,
274 __entry->child_comm, __entry->child_pid)
275);
276
277/*
278 * XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
279 * adding sched_stat support to SCHED_FIFO/RR would be welcome.
280 */
281DECLARE_EVENT_CLASS(sched_stat_template,
282
283 TP_PROTO(struct task_struct *tsk, u64 delay),
284
285 TP_ARGS(tsk, delay),
286
287 TP_STRUCT__entry(
288 __array( char, comm, TASK_COMM_LEN )
289 __field( pid_t, pid )
290 __field( u64, delay )
291 ),
292
293 TP_fast_assign(
294 memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
295 __entry->pid = tsk->pid;
296 __entry->delay = delay;
297 )
298 TP_perf_assign(
299 __perf_count(delay);
300 ),
301
302 TP_printk("comm=%s pid=%d delay=%Lu [ns]",
303 __entry->comm, __entry->pid,
304 (unsigned long long)__entry->delay)
305);
306
307
308/*
309 * Tracepoint for accounting wait time (time the task is runnable
310 * but not actually running due to scheduler contention).
311 */
312DEFINE_EVENT(sched_stat_template, sched_stat_wait,
313 TP_PROTO(struct task_struct *tsk, u64 delay),
314 TP_ARGS(tsk, delay));
315
316/*
317 * Tracepoint for accounting sleep time (time the task is not runnable,
318 * including iowait, see below).
319 */
320DEFINE_EVENT(sched_stat_template, sched_stat_sleep,
321 TP_PROTO(struct task_struct *tsk, u64 delay),
322 TP_ARGS(tsk, delay));
323
324/*
325 * Tracepoint for accounting iowait time (time the task is not runnable
326 * due to waiting on IO to complete).
327 */
328DEFINE_EVENT(sched_stat_template, sched_stat_iowait,
329 TP_PROTO(struct task_struct *tsk, u64 delay),
330 TP_ARGS(tsk, delay));
331
332/*
333 * Tracepoint for accounting runtime (time the task is executing
334 * on a CPU).
335 */
336TRACE_EVENT(sched_stat_runtime,
337
338 TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),
339
340 TP_ARGS(tsk, runtime, vruntime),
341
342 TP_STRUCT__entry(
343 __array( char, comm, TASK_COMM_LEN )
344 __field( pid_t, pid )
345 __field( u64, runtime )
346 __field( u64, vruntime )
347 ),
348
349 TP_fast_assign(
350 memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
351 __entry->pid = tsk->pid;
352 __entry->runtime = runtime;
353 __entry->vruntime = vruntime;
354 )
355 TP_perf_assign(
356 __perf_count(runtime);
357 ),
358
359 TP_printk("comm=%s pid=%d runtime=%Lu [ns] vruntime=%Lu [ns]",
360 __entry->comm, __entry->pid,
361 (unsigned long long)__entry->runtime,
362 (unsigned long long)__entry->vruntime)
363);
364
365/*
366 * Tracepoint for showing priority inheritance modifying a tasks
367 * priority.
368 */
369TRACE_EVENT(sched_pi_setprio,
370
371 TP_PROTO(struct task_struct *tsk, int newprio),
372
373 TP_ARGS(tsk, newprio),
374
375 TP_STRUCT__entry(
376 __array( char, comm, TASK_COMM_LEN )
377 __field( pid_t, pid )
378 __field( int, oldprio )
379 __field( int, newprio )
380 ),
381
382 TP_fast_assign(
383 memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
384 __entry->pid = tsk->pid;
385 __entry->oldprio = tsk->prio;
386 __entry->newprio = newprio;
387 ),
388
389 TP_printk("comm=%s pid=%d oldprio=%d newprio=%d",
390 __entry->comm, __entry->pid,
391 __entry->oldprio, __entry->newprio)
392);
393
394#endif /* _TRACE_SCHED_H */
395
396/* This part must be outside protection */
397#include <trace/define_trace.h>
1/* SPDX-License-Identifier: GPL-2.0 */
2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM sched
4
5#if !defined(_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ)
6#define _TRACE_SCHED_H
7
8#include <linux/sched/numa_balancing.h>
9#include <linux/tracepoint.h>
10#include <linux/binfmts.h>
11
12/*
13 * Tracepoint for calling kthread_stop, performed to end a kthread:
14 */
15TRACE_EVENT(sched_kthread_stop,
16
17 TP_PROTO(struct task_struct *t),
18
19 TP_ARGS(t),
20
21 TP_STRUCT__entry(
22 __array( char, comm, TASK_COMM_LEN )
23 __field( pid_t, pid )
24 ),
25
26 TP_fast_assign(
27 memcpy(__entry->comm, t->comm, TASK_COMM_LEN);
28 __entry->pid = t->pid;
29 ),
30
31 TP_printk("comm=%s pid=%d", __entry->comm, __entry->pid)
32);
33
34/*
35 * Tracepoint for the return value of the kthread stopping:
36 */
37TRACE_EVENT(sched_kthread_stop_ret,
38
39 TP_PROTO(int ret),
40
41 TP_ARGS(ret),
42
43 TP_STRUCT__entry(
44 __field( int, ret )
45 ),
46
47 TP_fast_assign(
48 __entry->ret = ret;
49 ),
50
51 TP_printk("ret=%d", __entry->ret)
52);
53
54/*
55 * Tracepoint for waking up a task:
56 */
57DECLARE_EVENT_CLASS(sched_wakeup_template,
58
59 TP_PROTO(struct task_struct *p),
60
61 TP_ARGS(__perf_task(p)),
62
63 TP_STRUCT__entry(
64 __array( char, comm, TASK_COMM_LEN )
65 __field( pid_t, pid )
66 __field( int, prio )
67 __field( int, success )
68 __field( int, target_cpu )
69 ),
70
71 TP_fast_assign(
72 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
73 __entry->pid = p->pid;
74 __entry->prio = p->prio; /* XXX SCHED_DEADLINE */
75 __entry->success = 1; /* rudiment, kill when possible */
76 __entry->target_cpu = task_cpu(p);
77 ),
78
79 TP_printk("comm=%s pid=%d prio=%d target_cpu=%03d",
80 __entry->comm, __entry->pid, __entry->prio,
81 __entry->target_cpu)
82);
83
84/*
85 * Tracepoint called when waking a task; this tracepoint is guaranteed to be
86 * called from the waking context.
87 */
88DEFINE_EVENT(sched_wakeup_template, sched_waking,
89 TP_PROTO(struct task_struct *p),
90 TP_ARGS(p));
91
92/*
93 * Tracepoint called when the task is actually woken; p->state == TASK_RUNNNG.
94 * It is not always called from the waking context.
95 */
96DEFINE_EVENT(sched_wakeup_template, sched_wakeup,
97 TP_PROTO(struct task_struct *p),
98 TP_ARGS(p));
99
100/*
101 * Tracepoint for waking up a new task:
102 */
103DEFINE_EVENT(sched_wakeup_template, sched_wakeup_new,
104 TP_PROTO(struct task_struct *p),
105 TP_ARGS(p));
106
107#ifdef CREATE_TRACE_POINTS
108static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p)
109{
110 unsigned int state;
111
112#ifdef CONFIG_SCHED_DEBUG
113 BUG_ON(p != current);
114#endif /* CONFIG_SCHED_DEBUG */
115
116 /*
117 * Preemption ignores task state, therefore preempted tasks are always
118 * RUNNING (we will not have dequeued if state != RUNNING).
119 */
120 if (preempt)
121 return TASK_REPORT_MAX;
122
123 /*
124 * task_state_index() uses fls() and returns a value from 0-8 range.
125 * Decrement it by 1 (except TASK_RUNNING state i.e 0) before using
126 * it for left shift operation to get the correct task->state
127 * mapping.
128 */
129 state = task_state_index(p);
130
131 return state ? (1 << (state - 1)) : state;
132}
133#endif /* CREATE_TRACE_POINTS */
134
135/*
136 * Tracepoint for task switches, performed by the scheduler:
137 */
138TRACE_EVENT(sched_switch,
139
140 TP_PROTO(bool preempt,
141 struct task_struct *prev,
142 struct task_struct *next),
143
144 TP_ARGS(preempt, prev, next),
145
146 TP_STRUCT__entry(
147 __array( char, prev_comm, TASK_COMM_LEN )
148 __field( pid_t, prev_pid )
149 __field( int, prev_prio )
150 __field( long, prev_state )
151 __array( char, next_comm, TASK_COMM_LEN )
152 __field( pid_t, next_pid )
153 __field( int, next_prio )
154 ),
155
156 TP_fast_assign(
157 memcpy(__entry->next_comm, next->comm, TASK_COMM_LEN);
158 __entry->prev_pid = prev->pid;
159 __entry->prev_prio = prev->prio;
160 __entry->prev_state = __trace_sched_switch_state(preempt, prev);
161 memcpy(__entry->prev_comm, prev->comm, TASK_COMM_LEN);
162 __entry->next_pid = next->pid;
163 __entry->next_prio = next->prio;
164 /* XXX SCHED_DEADLINE */
165 ),
166
167 TP_printk("prev_comm=%s prev_pid=%d prev_prio=%d prev_state=%s%s ==> next_comm=%s next_pid=%d next_prio=%d",
168 __entry->prev_comm, __entry->prev_pid, __entry->prev_prio,
169
170 (__entry->prev_state & (TASK_REPORT_MAX - 1)) ?
171 __print_flags(__entry->prev_state & (TASK_REPORT_MAX - 1), "|",
172 { TASK_INTERRUPTIBLE, "S" },
173 { TASK_UNINTERRUPTIBLE, "D" },
174 { __TASK_STOPPED, "T" },
175 { __TASK_TRACED, "t" },
176 { EXIT_DEAD, "X" },
177 { EXIT_ZOMBIE, "Z" },
178 { TASK_PARKED, "P" },
179 { TASK_DEAD, "I" }) :
180 "R",
181
182 __entry->prev_state & TASK_REPORT_MAX ? "+" : "",
183 __entry->next_comm, __entry->next_pid, __entry->next_prio)
184);
185
186/*
187 * Tracepoint for a task being migrated:
188 */
189TRACE_EVENT(sched_migrate_task,
190
191 TP_PROTO(struct task_struct *p, int dest_cpu),
192
193 TP_ARGS(p, dest_cpu),
194
195 TP_STRUCT__entry(
196 __array( char, comm, TASK_COMM_LEN )
197 __field( pid_t, pid )
198 __field( int, prio )
199 __field( int, orig_cpu )
200 __field( int, dest_cpu )
201 ),
202
203 TP_fast_assign(
204 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
205 __entry->pid = p->pid;
206 __entry->prio = p->prio; /* XXX SCHED_DEADLINE */
207 __entry->orig_cpu = task_cpu(p);
208 __entry->dest_cpu = dest_cpu;
209 ),
210
211 TP_printk("comm=%s pid=%d prio=%d orig_cpu=%d dest_cpu=%d",
212 __entry->comm, __entry->pid, __entry->prio,
213 __entry->orig_cpu, __entry->dest_cpu)
214);
215
216DECLARE_EVENT_CLASS(sched_process_template,
217
218 TP_PROTO(struct task_struct *p),
219
220 TP_ARGS(p),
221
222 TP_STRUCT__entry(
223 __array( char, comm, TASK_COMM_LEN )
224 __field( pid_t, pid )
225 __field( int, prio )
226 ),
227
228 TP_fast_assign(
229 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
230 __entry->pid = p->pid;
231 __entry->prio = p->prio; /* XXX SCHED_DEADLINE */
232 ),
233
234 TP_printk("comm=%s pid=%d prio=%d",
235 __entry->comm, __entry->pid, __entry->prio)
236);
237
238/*
239 * Tracepoint for freeing a task:
240 */
241DEFINE_EVENT(sched_process_template, sched_process_free,
242 TP_PROTO(struct task_struct *p),
243 TP_ARGS(p));
244
245/*
246 * Tracepoint for a task exiting:
247 */
248DEFINE_EVENT(sched_process_template, sched_process_exit,
249 TP_PROTO(struct task_struct *p),
250 TP_ARGS(p));
251
252/*
253 * Tracepoint for waiting on task to unschedule:
254 */
255DEFINE_EVENT(sched_process_template, sched_wait_task,
256 TP_PROTO(struct task_struct *p),
257 TP_ARGS(p));
258
259/*
260 * Tracepoint for a waiting task:
261 */
262TRACE_EVENT(sched_process_wait,
263
264 TP_PROTO(struct pid *pid),
265
266 TP_ARGS(pid),
267
268 TP_STRUCT__entry(
269 __array( char, comm, TASK_COMM_LEN )
270 __field( pid_t, pid )
271 __field( int, prio )
272 ),
273
274 TP_fast_assign(
275 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
276 __entry->pid = pid_nr(pid);
277 __entry->prio = current->prio; /* XXX SCHED_DEADLINE */
278 ),
279
280 TP_printk("comm=%s pid=%d prio=%d",
281 __entry->comm, __entry->pid, __entry->prio)
282);
283
284/*
285 * Tracepoint for do_fork:
286 */
287TRACE_EVENT(sched_process_fork,
288
289 TP_PROTO(struct task_struct *parent, struct task_struct *child),
290
291 TP_ARGS(parent, child),
292
293 TP_STRUCT__entry(
294 __array( char, parent_comm, TASK_COMM_LEN )
295 __field( pid_t, parent_pid )
296 __array( char, child_comm, TASK_COMM_LEN )
297 __field( pid_t, child_pid )
298 ),
299
300 TP_fast_assign(
301 memcpy(__entry->parent_comm, parent->comm, TASK_COMM_LEN);
302 __entry->parent_pid = parent->pid;
303 memcpy(__entry->child_comm, child->comm, TASK_COMM_LEN);
304 __entry->child_pid = child->pid;
305 ),
306
307 TP_printk("comm=%s pid=%d child_comm=%s child_pid=%d",
308 __entry->parent_comm, __entry->parent_pid,
309 __entry->child_comm, __entry->child_pid)
310);
311
312/*
313 * Tracepoint for exec:
314 */
315TRACE_EVENT(sched_process_exec,
316
317 TP_PROTO(struct task_struct *p, pid_t old_pid,
318 struct linux_binprm *bprm),
319
320 TP_ARGS(p, old_pid, bprm),
321
322 TP_STRUCT__entry(
323 __string( filename, bprm->filename )
324 __field( pid_t, pid )
325 __field( pid_t, old_pid )
326 ),
327
328 TP_fast_assign(
329 __assign_str(filename, bprm->filename);
330 __entry->pid = p->pid;
331 __entry->old_pid = old_pid;
332 ),
333
334 TP_printk("filename=%s pid=%d old_pid=%d", __get_str(filename),
335 __entry->pid, __entry->old_pid)
336);
337
338
339#ifdef CONFIG_SCHEDSTATS
340#define DEFINE_EVENT_SCHEDSTAT DEFINE_EVENT
341#define DECLARE_EVENT_CLASS_SCHEDSTAT DECLARE_EVENT_CLASS
342#else
343#define DEFINE_EVENT_SCHEDSTAT DEFINE_EVENT_NOP
344#define DECLARE_EVENT_CLASS_SCHEDSTAT DECLARE_EVENT_CLASS_NOP
345#endif
346
347/*
348 * XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
349 * adding sched_stat support to SCHED_FIFO/RR would be welcome.
350 */
351DECLARE_EVENT_CLASS_SCHEDSTAT(sched_stat_template,
352
353 TP_PROTO(struct task_struct *tsk, u64 delay),
354
355 TP_ARGS(__perf_task(tsk), __perf_count(delay)),
356
357 TP_STRUCT__entry(
358 __array( char, comm, TASK_COMM_LEN )
359 __field( pid_t, pid )
360 __field( u64, delay )
361 ),
362
363 TP_fast_assign(
364 memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
365 __entry->pid = tsk->pid;
366 __entry->delay = delay;
367 ),
368
369 TP_printk("comm=%s pid=%d delay=%Lu [ns]",
370 __entry->comm, __entry->pid,
371 (unsigned long long)__entry->delay)
372);
373
374/*
375 * Tracepoint for accounting wait time (time the task is runnable
376 * but not actually running due to scheduler contention).
377 */
378DEFINE_EVENT_SCHEDSTAT(sched_stat_template, sched_stat_wait,
379 TP_PROTO(struct task_struct *tsk, u64 delay),
380 TP_ARGS(tsk, delay));
381
382/*
383 * Tracepoint for accounting sleep time (time the task is not runnable,
384 * including iowait, see below).
385 */
386DEFINE_EVENT_SCHEDSTAT(sched_stat_template, sched_stat_sleep,
387 TP_PROTO(struct task_struct *tsk, u64 delay),
388 TP_ARGS(tsk, delay));
389
390/*
391 * Tracepoint for accounting iowait time (time the task is not runnable
392 * due to waiting on IO to complete).
393 */
394DEFINE_EVENT_SCHEDSTAT(sched_stat_template, sched_stat_iowait,
395 TP_PROTO(struct task_struct *tsk, u64 delay),
396 TP_ARGS(tsk, delay));
397
398/*
399 * Tracepoint for accounting blocked time (time the task is in uninterruptible).
400 */
401DEFINE_EVENT_SCHEDSTAT(sched_stat_template, sched_stat_blocked,
402 TP_PROTO(struct task_struct *tsk, u64 delay),
403 TP_ARGS(tsk, delay));
404
405/*
406 * Tracepoint for accounting runtime (time the task is executing
407 * on a CPU).
408 */
409DECLARE_EVENT_CLASS(sched_stat_runtime,
410
411 TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),
412
413 TP_ARGS(tsk, __perf_count(runtime), vruntime),
414
415 TP_STRUCT__entry(
416 __array( char, comm, TASK_COMM_LEN )
417 __field( pid_t, pid )
418 __field( u64, runtime )
419 __field( u64, vruntime )
420 ),
421
422 TP_fast_assign(
423 memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
424 __entry->pid = tsk->pid;
425 __entry->runtime = runtime;
426 __entry->vruntime = vruntime;
427 ),
428
429 TP_printk("comm=%s pid=%d runtime=%Lu [ns] vruntime=%Lu [ns]",
430 __entry->comm, __entry->pid,
431 (unsigned long long)__entry->runtime,
432 (unsigned long long)__entry->vruntime)
433);
434
435DEFINE_EVENT(sched_stat_runtime, sched_stat_runtime,
436 TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),
437 TP_ARGS(tsk, runtime, vruntime));
438
439/*
440 * Tracepoint for showing priority inheritance modifying a tasks
441 * priority.
442 */
443TRACE_EVENT(sched_pi_setprio,
444
445 TP_PROTO(struct task_struct *tsk, struct task_struct *pi_task),
446
447 TP_ARGS(tsk, pi_task),
448
449 TP_STRUCT__entry(
450 __array( char, comm, TASK_COMM_LEN )
451 __field( pid_t, pid )
452 __field( int, oldprio )
453 __field( int, newprio )
454 ),
455
456 TP_fast_assign(
457 memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
458 __entry->pid = tsk->pid;
459 __entry->oldprio = tsk->prio;
460 __entry->newprio = pi_task ?
461 min(tsk->normal_prio, pi_task->prio) :
462 tsk->normal_prio;
463 /* XXX SCHED_DEADLINE bits missing */
464 ),
465
466 TP_printk("comm=%s pid=%d oldprio=%d newprio=%d",
467 __entry->comm, __entry->pid,
468 __entry->oldprio, __entry->newprio)
469);
470
471#ifdef CONFIG_DETECT_HUNG_TASK
472TRACE_EVENT(sched_process_hang,
473 TP_PROTO(struct task_struct *tsk),
474 TP_ARGS(tsk),
475
476 TP_STRUCT__entry(
477 __array( char, comm, TASK_COMM_LEN )
478 __field( pid_t, pid )
479 ),
480
481 TP_fast_assign(
482 memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
483 __entry->pid = tsk->pid;
484 ),
485
486 TP_printk("comm=%s pid=%d", __entry->comm, __entry->pid)
487);
488#endif /* CONFIG_DETECT_HUNG_TASK */
489
490/*
491 * Tracks migration of tasks from one runqueue to another. Can be used to
492 * detect if automatic NUMA balancing is bouncing between nodes.
493 */
494TRACE_EVENT(sched_move_numa,
495
496 TP_PROTO(struct task_struct *tsk, int src_cpu, int dst_cpu),
497
498 TP_ARGS(tsk, src_cpu, dst_cpu),
499
500 TP_STRUCT__entry(
501 __field( pid_t, pid )
502 __field( pid_t, tgid )
503 __field( pid_t, ngid )
504 __field( int, src_cpu )
505 __field( int, src_nid )
506 __field( int, dst_cpu )
507 __field( int, dst_nid )
508 ),
509
510 TP_fast_assign(
511 __entry->pid = task_pid_nr(tsk);
512 __entry->tgid = task_tgid_nr(tsk);
513 __entry->ngid = task_numa_group_id(tsk);
514 __entry->src_cpu = src_cpu;
515 __entry->src_nid = cpu_to_node(src_cpu);
516 __entry->dst_cpu = dst_cpu;
517 __entry->dst_nid = cpu_to_node(dst_cpu);
518 ),
519
520 TP_printk("pid=%d tgid=%d ngid=%d src_cpu=%d src_nid=%d dst_cpu=%d dst_nid=%d",
521 __entry->pid, __entry->tgid, __entry->ngid,
522 __entry->src_cpu, __entry->src_nid,
523 __entry->dst_cpu, __entry->dst_nid)
524);
525
526DECLARE_EVENT_CLASS(sched_numa_pair_template,
527
528 TP_PROTO(struct task_struct *src_tsk, int src_cpu,
529 struct task_struct *dst_tsk, int dst_cpu),
530
531 TP_ARGS(src_tsk, src_cpu, dst_tsk, dst_cpu),
532
533 TP_STRUCT__entry(
534 __field( pid_t, src_pid )
535 __field( pid_t, src_tgid )
536 __field( pid_t, src_ngid )
537 __field( int, src_cpu )
538 __field( int, src_nid )
539 __field( pid_t, dst_pid )
540 __field( pid_t, dst_tgid )
541 __field( pid_t, dst_ngid )
542 __field( int, dst_cpu )
543 __field( int, dst_nid )
544 ),
545
546 TP_fast_assign(
547 __entry->src_pid = task_pid_nr(src_tsk);
548 __entry->src_tgid = task_tgid_nr(src_tsk);
549 __entry->src_ngid = task_numa_group_id(src_tsk);
550 __entry->src_cpu = src_cpu;
551 __entry->src_nid = cpu_to_node(src_cpu);
552 __entry->dst_pid = dst_tsk ? task_pid_nr(dst_tsk) : 0;
553 __entry->dst_tgid = dst_tsk ? task_tgid_nr(dst_tsk) : 0;
554 __entry->dst_ngid = dst_tsk ? task_numa_group_id(dst_tsk) : 0;
555 __entry->dst_cpu = dst_cpu;
556 __entry->dst_nid = dst_cpu >= 0 ? cpu_to_node(dst_cpu) : -1;
557 ),
558
559 TP_printk("src_pid=%d src_tgid=%d src_ngid=%d src_cpu=%d src_nid=%d dst_pid=%d dst_tgid=%d dst_ngid=%d dst_cpu=%d dst_nid=%d",
560 __entry->src_pid, __entry->src_tgid, __entry->src_ngid,
561 __entry->src_cpu, __entry->src_nid,
562 __entry->dst_pid, __entry->dst_tgid, __entry->dst_ngid,
563 __entry->dst_cpu, __entry->dst_nid)
564);
565
566DEFINE_EVENT(sched_numa_pair_template, sched_stick_numa,
567
568 TP_PROTO(struct task_struct *src_tsk, int src_cpu,
569 struct task_struct *dst_tsk, int dst_cpu),
570
571 TP_ARGS(src_tsk, src_cpu, dst_tsk, dst_cpu)
572);
573
574DEFINE_EVENT(sched_numa_pair_template, sched_swap_numa,
575
576 TP_PROTO(struct task_struct *src_tsk, int src_cpu,
577 struct task_struct *dst_tsk, int dst_cpu),
578
579 TP_ARGS(src_tsk, src_cpu, dst_tsk, dst_cpu)
580);
581
582
583/*
584 * Tracepoint for waking a polling cpu without an IPI.
585 */
586TRACE_EVENT(sched_wake_idle_without_ipi,
587
588 TP_PROTO(int cpu),
589
590 TP_ARGS(cpu),
591
592 TP_STRUCT__entry(
593 __field( int, cpu )
594 ),
595
596 TP_fast_assign(
597 __entry->cpu = cpu;
598 ),
599
600 TP_printk("cpu=%d", __entry->cpu)
601);
602
603/*
604 * Following tracepoints are not exported in tracefs and provide hooking
605 * mechanisms only for testing and debugging purposes.
606 *
607 * Postfixed with _tp to make them easily identifiable in the code.
608 */
609DECLARE_TRACE(pelt_cfs_tp,
610 TP_PROTO(struct cfs_rq *cfs_rq),
611 TP_ARGS(cfs_rq));
612
613DECLARE_TRACE(pelt_rt_tp,
614 TP_PROTO(struct rq *rq),
615 TP_ARGS(rq));
616
617DECLARE_TRACE(pelt_dl_tp,
618 TP_PROTO(struct rq *rq),
619 TP_ARGS(rq));
620
621DECLARE_TRACE(pelt_thermal_tp,
622 TP_PROTO(struct rq *rq),
623 TP_ARGS(rq));
624
625DECLARE_TRACE(pelt_irq_tp,
626 TP_PROTO(struct rq *rq),
627 TP_ARGS(rq));
628
629DECLARE_TRACE(pelt_se_tp,
630 TP_PROTO(struct sched_entity *se),
631 TP_ARGS(se));
632
633DECLARE_TRACE(sched_overutilized_tp,
634 TP_PROTO(struct root_domain *rd, bool overutilized),
635 TP_ARGS(rd, overutilized));
636
637DECLARE_TRACE(sched_util_est_cfs_tp,
638 TP_PROTO(struct cfs_rq *cfs_rq),
639 TP_ARGS(cfs_rq));
640
641DECLARE_TRACE(sched_util_est_se_tp,
642 TP_PROTO(struct sched_entity *se),
643 TP_ARGS(se));
644
645DECLARE_TRACE(sched_update_nr_running_tp,
646 TP_PROTO(struct rq *rq, int change),
647 TP_ARGS(rq, change));
648
649#endif /* _TRACE_SCHED_H */
650
651/* This part must be outside protection */
652#include <trace/define_trace.h>