include/trace/events/sched.h

   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  */
  13 TRACE_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  */
  35 TRACE_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  */
  58 TRACE_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  */
  86 TRACE_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  */
 117 TRACE_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  */
 148 TRACE_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                 __field(        long,   prev_state                      )
 160                 __array(        char,   next_comm,      TASK_COMM_LEN   )
 161                 __field(        pid_t,  next_pid                        )
 162                 __field(        int,    next_prio                       )
 163         ),
 164
 165         TP_fast_assign(
 166                 memcpy(__entry->next_comm, next->comm, TASK_COMM_LEN);
 167                 __entry->prev_pid       = prev->pid;
 168                 __entry->prev_prio      = prev->prio;
 169                 __entry->prev_state     = prev->state;
 170                 memcpy(__entry->prev_comm, prev->comm, TASK_COMM_LEN);
 171                 __entry->next_pid       = next->pid;
 172                 __entry->next_prio      = next->prio;
 173         ),
 174
 175         TP_printk("task %s:%d [%d] (%s) ==> %s:%d [%d]",
 176                 __entry->prev_comm, __entry->prev_pid, __entry->prev_prio,
 177                 __entry->prev_state ?
 178                   __print_flags(__entry->prev_state, "|",
 179                                 { 1, "S"} , { 2, "D" }, { 4, "T" }, { 8, "t" },
 180                                 { 16, "Z" }, { 32, "X" }, { 64, "x" },
 181                                 { 128, "W" }) : "R",
 182                 __entry->next_comm, __entry->next_pid, __entry->next_prio)
 183 );
 184
 185 /*
 186  * Tracepoint for a task being migrated:
 187  */
 188 TRACE_EVENT(sched_migrate_task,
 189
 190         TP_PROTO(struct task_struct *p, int dest_cpu),
 191
 192         TP_ARGS(p, dest_cpu),
 193
 194         TP_STRUCT__entry(
 195                 __array(        char,   comm,   TASK_COMM_LEN   )
 196                 __field(        pid_t,  pid                     )
 197                 __field(        int,    prio                    )
 198                 __field(        int,    orig_cpu                )
 199                 __field(        int,    dest_cpu                )
 200         ),
 201
 202         TP_fast_assign(
 203                 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
 204                 __entry->pid            = p->pid;
 205                 __entry->prio           = p->prio;
 206                 __entry->orig_cpu       = task_cpu(p);
 207                 __entry->dest_cpu       = dest_cpu;
 208         ),
 209
 210         TP_printk("task %s:%d [%d] from: %d  to: %d",
 211                   __entry->comm, __entry->pid, __entry->prio,
 212                   __entry->orig_cpu, __entry->dest_cpu)
 213 );
 214
 215 /*
 216  * Tracepoint for freeing a task:
 217  */
 218 TRACE_EVENT(sched_process_free,
 219
 220         TP_PROTO(struct task_struct *p),
 221
 222         TP_ARGS(p),
 223
 224         TP_STRUCT__entry(
 225                 __array(        char,   comm,   TASK_COMM_LEN   )
 226                 __field(        pid_t,  pid                     )
 227                 __field(        int,    prio                    )
 228         ),
 229
 230         TP_fast_assign(
 231                 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
 232                 __entry->pid            = p->pid;
 233                 __entry->prio           = p->prio;
 234         ),
 235
 236         TP_printk("task %s:%d [%d]",
 237                   __entry->comm, __entry->pid, __entry->prio)
 238 );
 239
 240 /*
 241  * Tracepoint for a task exiting:
 242  */
 243 TRACE_EVENT(sched_process_exit,
 244
 245         TP_PROTO(struct task_struct *p),
 246
 247         TP_ARGS(p),
 248
 249         TP_STRUCT__entry(
 250                 __array(        char,   comm,   TASK_COMM_LEN   )
 251                 __field(        pid_t,  pid                     )
 252                 __field(        int,    prio                    )
 253         ),
 254
 255         TP_fast_assign(
 256                 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
 257                 __entry->pid            = p->pid;
 258                 __entry->prio           = p->prio;
 259         ),
 260
 261         TP_printk("task %s:%d [%d]",
 262                   __entry->comm, __entry->pid, __entry->prio)
 263 );
 264
 265 /*
 266  * Tracepoint for a waiting task:
 267  */
 268 TRACE_EVENT(sched_process_wait,
 269
 270         TP_PROTO(struct pid *pid),
 271
 272         TP_ARGS(pid),
 273
 274         TP_STRUCT__entry(
 275                 __array(        char,   comm,   TASK_COMM_LEN   )
 276                 __field(        pid_t,  pid                     )
 277                 __field(        int,    prio                    )
 278         ),
 279
 280         TP_fast_assign(
 281                 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
 282                 __entry->pid            = pid_nr(pid);
 283                 __entry->prio           = current->prio;
 284         ),
 285
 286         TP_printk("task %s:%d [%d]",
 287                   __entry->comm, __entry->pid, __entry->prio)
 288 );
 289
 290 /*
 291  * Tracepoint for do_fork:
 292  */
 293 TRACE_EVENT(sched_process_fork,
 294
 295         TP_PROTO(struct task_struct *parent, struct task_struct *child),
 296
 297         TP_ARGS(parent, child),
 298
 299         TP_STRUCT__entry(
 300                 __array(        char,   parent_comm,    TASK_COMM_LEN   )
 301                 __field(        pid_t,  parent_pid                      )
 302                 __array(        char,   child_comm,     TASK_COMM_LEN   )
 303                 __field(        pid_t,  child_pid                       )
 304         ),
 305
 306         TP_fast_assign(
 307                 memcpy(__entry->parent_comm, parent->comm, TASK_COMM_LEN);
 308                 __entry->parent_pid     = parent->pid;
 309                 memcpy(__entry->child_comm, child->comm, TASK_COMM_LEN);
 310                 __entry->child_pid      = child->pid;
 311         ),
 312
 313         TP_printk("parent %s:%d  child %s:%d",
 314                 __entry->parent_comm, __entry->parent_pid,
 315                 __entry->child_comm, __entry->child_pid)
 316 );
 317
 318 /*
 319  * Tracepoint for sending a signal:
 320  */
 321 TRACE_EVENT(sched_signal_send,
 322
 323         TP_PROTO(int sig, struct task_struct *p),
 324
 325         TP_ARGS(sig, p),
 326
 327         TP_STRUCT__entry(
 328                 __field(        int,    sig                     )
 329                 __array(        char,   comm,   TASK_COMM_LEN   )
 330                 __field(        pid_t,  pid                     )
 331         ),
 332
 333         TP_fast_assign(
 334                 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
 335                 __entry->pid    = p->pid;
 336                 __entry->sig    = sig;
 337         ),
 338
 339         TP_printk("sig: %d  task %s:%d",
 340                   __entry->sig, __entry->comm, __entry->pid)
 341 );
 342
 343 #endif /* _TRACE_SCHED_H */
 344
 345 /* This part must be outside protection */
 346 #include <trace/define_trace.h>