kernel/sched/debug.c

   1 /*
   2  * kernel/sched/debug.c
   3  *
   4  * Print the CFS rbtree
   5  *
   6  * Copyright(C) 2007, Red Hat, Inc., Ingo Molnar
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12
  13 #include <linux/proc_fs.h>
  14 #include <linux/sched.h>
  15 #include <linux/seq_file.h>
  16 #include <linux/kallsyms.h>
  17 #include <linux/utsname.h>
  18 #include <linux/mempolicy.h>
  19
  20 #include "sched.h"
  21
  22 static DEFINE_SPINLOCK(sched_debug_lock);
  23
  24 /*
  25  * This allows printing both to /proc/sched_debug and
  26  * to the console
  27  */
  28 #define SEQ_printf(m, x...)                     \
  29  do {                                           \
  30         if (m)                                  \
  31                 seq_printf(m, x);               \
  32         else                                    \
  33                 printk(x);                      \
  34  } while (0)
  35
  36 /*
  37  * Ease the printing of nsec fields:
  38  */
  39 static long long nsec_high(unsigned long long nsec)
  40 {
  41         if ((long long)nsec < 0) {
  42                 nsec = -nsec;
  43                 do_div(nsec, 1000000);
  44                 return -nsec;
  45         }
  46         do_div(nsec, 1000000);
  47
  48         return nsec;
  49 }
  50
  51 static unsigned long nsec_low(unsigned long long nsec)
  52 {
  53         if ((long long)nsec < 0)
  54                 nsec = -nsec;
  55
  56         return do_div(nsec, 1000000);
  57 }
  58
  59 #define SPLIT_NS(x) nsec_high(x), nsec_low(x)
  60
  61 #ifdef CONFIG_FAIR_GROUP_SCHED
  62 static void print_cfs_group_stats(struct seq_file *m, int cpu, struct task_group *tg)
  63 {
  64         struct sched_entity *se = tg->se[cpu];
  65
  66 #define P(F) \
  67         SEQ_printf(m, "  .%-30s: %lld\n", #F, (long long)F)
  68 #define PN(F) \
  69         SEQ_printf(m, "  .%-30s: %lld.%06ld\n", #F, SPLIT_NS((long long)F))
  70
  71         if (!se) {
  72                 struct sched_avg *avg = &cpu_rq(cpu)->avg;
  73                 P(avg->runnable_avg_sum);
  74                 P(avg->runnable_avg_period);
  75                 return;
  76         }
  77
  78
  79         PN(se->exec_start);
  80         PN(se->vruntime);
  81         PN(se->sum_exec_runtime);
  82 #ifdef CONFIG_SCHEDSTATS
  83         PN(se->statistics.wait_start);
  84         PN(se->statistics.sleep_start);
  85         PN(se->statistics.block_start);
  86         PN(se->statistics.sleep_max);
  87         PN(se->statistics.block_max);
  88         PN(se->statistics.exec_max);
  89         PN(se->statistics.slice_max);
  90         PN(se->statistics.wait_max);
  91         PN(se->statistics.wait_sum);
  92         P(se->statistics.wait_count);
  93 #endif
  94         P(se->load.weight);
  95 #ifdef CONFIG_SMP
  96         P(se->avg.runnable_avg_sum);
  97         P(se->avg.runnable_avg_period);
  98         P(se->avg.load_avg_contrib);
  99         P(se->avg.decay_count);
 100 #endif
 101 #undef PN
 102 #undef P
 103 }
 104 #endif
 105
 106 #ifdef CONFIG_CGROUP_SCHED
 107 static char group_path[PATH_MAX];
 108
 109 static char *task_group_path(struct task_group *tg)
 110 {
 111         if (autogroup_path(tg, group_path, PATH_MAX))
 112                 return group_path;
 113
 114         return cgroup_path(tg->css.cgroup, group_path, PATH_MAX);
 115 }
 116 #endif
 117
 118 static void
 119 print_task(struct seq_file *m, struct rq *rq, struct task_struct *p)
 120 {
 121         if (rq->curr == p)
 122                 SEQ_printf(m, "R");
 123         else
 124                 SEQ_printf(m, " ");
 125
 126         SEQ_printf(m, "%15s %5d %9Ld.%06ld %9Ld %5d ",
 127                 p->comm, task_pid_nr(p),
 128                 SPLIT_NS(p->se.vruntime),
 129                 (long long)(p->nvcsw + p->nivcsw),
 130                 p->prio);
 131 #ifdef CONFIG_SCHEDSTATS
 132         SEQ_printf(m, "%9Ld.%06ld %9Ld.%06ld %9Ld.%06ld",
 133                 SPLIT_NS(p->se.vruntime),
 134                 SPLIT_NS(p->se.sum_exec_runtime),
 135                 SPLIT_NS(p->se.statistics.sum_sleep_runtime));
 136 #else
 137         SEQ_printf(m, "%15Ld %15Ld %15Ld.%06ld %15Ld.%06ld %15Ld.%06ld",
 138                 0LL, 0LL, 0LL, 0L, 0LL, 0L, 0LL, 0L);
 139 #endif
 140 #ifdef CONFIG_NUMA_BALANCING
 141         SEQ_printf(m, " %d", task_node(p));
 142 #endif
 143 #ifdef CONFIG_CGROUP_SCHED
 144         SEQ_printf(m, " %s", task_group_path(task_group(p)));
 145 #endif
 146
 147         SEQ_printf(m, "\n");
 148 }
 149
 150 static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu)
 151 {
 152         struct task_struct *g, *p;
 153         unsigned long flags;
 154
 155         SEQ_printf(m,
 156         "\nrunnable tasks:\n"
 157         "            task   PID         tree-key  switches  prio"
 158         "     exec-runtime         sum-exec        sum-sleep\n"
 159         "------------------------------------------------------"
 160         "----------------------------------------------------\n");
 161
 162         read_lock_irqsave(&tasklist_lock, flags);
 163
 164         do_each_thread(g, p) {
 165                 if (task_cpu(p) != rq_cpu)
 166                         continue;
 167
 168                 print_task(m, rq, p);
 169         } while_each_thread(g, p);
 170
 171         read_unlock_irqrestore(&tasklist_lock, flags);
 172 }
 173
 174 void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
 175 {
 176         s64 MIN_vruntime = -1, min_vruntime, max_vruntime = -1,
 177                 spread, rq0_min_vruntime, spread0;
 178         struct rq *rq = cpu_rq(cpu);
 179         struct sched_entity *last;
 180         unsigned long flags;
 181
 182 #ifdef CONFIG_FAIR_GROUP_SCHED
 183         SEQ_printf(m, "\ncfs_rq[%d]:%s\n", cpu, task_group_path(cfs_rq->tg));
 184 #else
 185         SEQ_printf(m, "\ncfs_rq[%d]:\n", cpu);
 186 #endif
 187         SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", "exec_clock",
 188                         SPLIT_NS(cfs_rq->exec_clock));
 189
 190         raw_spin_lock_irqsave(&rq->lock, flags);
 191         if (cfs_rq->rb_leftmost)
 192                 MIN_vruntime = (__pick_first_entity(cfs_rq))->vruntime;
 193         last = __pick_last_entity(cfs_rq);
 194         if (last)
 195                 max_vruntime = last->vruntime;
 196         min_vruntime = cfs_rq->min_vruntime;
 197         rq0_min_vruntime = cpu_rq(0)->cfs.min_vruntime;
 198         raw_spin_unlock_irqrestore(&rq->lock, flags);
 199         SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", "MIN_vruntime",
 200                         SPLIT_NS(MIN_vruntime));
 201         SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", "min_vruntime",
 202                         SPLIT_NS(min_vruntime));
 203         SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", "max_vruntime",
 204                         SPLIT_NS(max_vruntime));
 205         spread = max_vruntime - MIN_vruntime;
 206         SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", "spread",
 207                         SPLIT_NS(spread));
 208         spread0 = min_vruntime - rq0_min_vruntime;
 209         SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", "spread0",
 210                         SPLIT_NS(spread0));
 211         SEQ_printf(m, "  .%-30s: %d\n", "nr_spread_over",
 212                         cfs_rq->nr_spread_over);
 213         SEQ_printf(m, "  .%-30s: %d\n", "nr_running", cfs_rq->nr_running);
 214         SEQ_printf(m, "  .%-30s: %ld\n", "load", cfs_rq->load.weight);
 215 #ifdef CONFIG_SMP
 216         SEQ_printf(m, "  .%-30s: %ld\n", "runnable_load_avg",
 217                         cfs_rq->runnable_load_avg);
 218         SEQ_printf(m, "  .%-30s: %ld\n", "blocked_load_avg",
 219                         cfs_rq->blocked_load_avg);
 220 #ifdef CONFIG_FAIR_GROUP_SCHED
 221         SEQ_printf(m, "  .%-30s: %ld\n", "tg_load_contrib",
 222                         cfs_rq->tg_load_contrib);
 223         SEQ_printf(m, "  .%-30s: %d\n", "tg_runnable_contrib",
 224                         cfs_rq->tg_runnable_contrib);
 225         SEQ_printf(m, "  .%-30s: %ld\n", "tg_load_avg",
 226                         atomic_long_read(&cfs_rq->tg->load_avg));
 227         SEQ_printf(m, "  .%-30s: %d\n", "tg->runnable_avg",
 228                         atomic_read(&cfs_rq->tg->runnable_avg));
 229 #endif
 230 #endif
 231 #ifdef CONFIG_CFS_BANDWIDTH
 232         SEQ_printf(m, "  .%-30s: %d\n", "tg->cfs_bandwidth.timer_active",
 233                         cfs_rq->tg->cfs_bandwidth.timer_active);
 234         SEQ_printf(m, "  .%-30s: %d\n", "throttled",
 235                         cfs_rq->throttled);
 236         SEQ_printf(m, "  .%-30s: %d\n", "throttle_count",
 237                         cfs_rq->throttle_count);
 238 #endif
 239
 240 #ifdef CONFIG_FAIR_GROUP_SCHED
 241         print_cfs_group_stats(m, cpu, cfs_rq->tg);
 242 #endif
 243 }
 244
 245 void print_rt_rq(struct seq_file *m, int cpu, struct rt_rq *rt_rq)
 246 {
 247 #ifdef CONFIG_RT_GROUP_SCHED
 248         SEQ_printf(m, "\nrt_rq[%d]:%s\n", cpu, task_group_path(rt_rq->tg));
 249 #else
 250         SEQ_printf(m, "\nrt_rq[%d]:\n", cpu);
 251 #endif
 252
 253 #define P(x) \
 254         SEQ_printf(m, "  .%-30s: %Ld\n", #x, (long long)(rt_rq->x))
 255 #define PN(x) \
 256         SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rt_rq->x))
 257
 258         P(rt_nr_running);
 259         P(rt_throttled);
 260         PN(rt_time);
 261         PN(rt_runtime);
 262
 263 #undef PN
 264 #undef P
 265 }
 266
 267 extern __read_mostly int sched_clock_running;
 268
 269 static void print_cpu(struct seq_file *m, int cpu)
 270 {
 271         struct rq *rq = cpu_rq(cpu);
 272         unsigned long flags;
 273
 274 #ifdef CONFIG_X86
 275         {
 276                 unsigned int freq = cpu_khz ? : 1;
 277
 278                 SEQ_printf(m, "cpu#%d, %u.%03u MHz\n",
 279                            cpu, freq / 1000, (freq % 1000));
 280         }
 281 #else
 282         SEQ_printf(m, "cpu#%d\n", cpu);
 283 #endif
 284
 285 #define P(x)                                                            \
 286 do {                                                                    \
 287         if (sizeof(rq->x) == 4)                                         \
 288                 SEQ_printf(m, "  .%-30s: %ld\n", #x, (long)(rq->x));    \
 289         else                                                            \
 290                 SEQ_printf(m, "  .%-30s: %Ld\n", #x, (long long)(rq->x));\
 291 } while (0)
 292
 293 #define PN(x) \
 294         SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rq->x))
 295
 296         P(nr_running);
 297         SEQ_printf(m, "  .%-30s: %lu\n", "load",
 298                    rq->load.weight);
 299         P(nr_switches);
 300         P(nr_load_updates);
 301         P(nr_uninterruptible);
 302         PN(next_balance);
 303         SEQ_printf(m, "  .%-30s: %ld\n", "curr->pid", (long)(task_pid_nr(rq->curr)));
 304         PN(clock);
 305         P(cpu_load[0]);
 306         P(cpu_load[1]);
 307         P(cpu_load[2]);
 308         P(cpu_load[3]);
 309         P(cpu_load[4]);
 310 #undef P
 311 #undef PN
 312
 313 #ifdef CONFIG_SCHEDSTATS
 314 #define P(n) SEQ_printf(m, "  .%-30s: %d\n", #n, rq->n);
 315 #define P64(n) SEQ_printf(m, "  .%-30s: %Ld\n", #n, rq->n);
 316
 317         P(yld_count);
 318
 319         P(sched_count);
 320         P(sched_goidle);
 321 #ifdef CONFIG_SMP
 322         P64(avg_idle);
 323         P64(max_idle_balance_cost);
 324 #endif
 325
 326         P(ttwu_count);
 327         P(ttwu_local);
 328
 329 #undef P
 330 #undef P64
 331 #endif
 332         spin_lock_irqsave(&sched_debug_lock, flags);
 333         print_cfs_stats(m, cpu);
 334         print_rt_stats(m, cpu);
 335
 336         rcu_read_lock();
 337         print_rq(m, rq, cpu);
 338         rcu_read_unlock();
 339         spin_unlock_irqrestore(&sched_debug_lock, flags);
 340         SEQ_printf(m, "\n");
 341 }
 342
 343 static const char *sched_tunable_scaling_names[] = {
 344         "none",
 345         "logaritmic",
 346         "linear"
 347 };
 348
 349 static void sched_debug_header(struct seq_file *m)
 350 {
 351         u64 ktime, sched_clk, cpu_clk;
 352         unsigned long flags;
 353
 354         local_irq_save(flags);
 355         ktime = ktime_to_ns(ktime_get());
 356         sched_clk = sched_clock();
 357         cpu_clk = local_clock();
 358         local_irq_restore(flags);
 359
 360         SEQ_printf(m, "Sched Debug Version: v0.11, %s %.*s\n",
 361                 init_utsname()->release,
 362                 (int)strcspn(init_utsname()->version, " "),
 363                 init_utsname()->version);
 364
 365 #define P(x) \
 366         SEQ_printf(m, "%-40s: %Ld\n", #x, (long long)(x))
 367 #define PN(x) \
 368         SEQ_printf(m, "%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x))
 369         PN(ktime);
 370         PN(sched_clk);
 371         PN(cpu_clk);
 372         P(jiffies);
 373 #ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
 374         P(sched_clock_stable());
 375 #endif
 376 #undef PN
 377 #undef P
 378
 379         SEQ_printf(m, "\n");
 380         SEQ_printf(m, "sysctl_sched\n");
 381
 382 #define P(x) \
 383         SEQ_printf(m, "  .%-40s: %Ld\n", #x, (long long)(x))
 384 #define PN(x) \
 385         SEQ_printf(m, "  .%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x))
 386         PN(sysctl_sched_latency);
 387         PN(sysctl_sched_min_granularity);
 388         PN(sysctl_sched_wakeup_granularity);
 389         P(sysctl_sched_child_runs_first);
 390         P(sysctl_sched_features);
 391 #undef PN
 392 #undef P
 393
 394         SEQ_printf(m, "  .%-40s: %d (%s)\n",
 395                 "sysctl_sched_tunable_scaling",
 396                 sysctl_sched_tunable_scaling,
 397                 sched_tunable_scaling_names[sysctl_sched_tunable_scaling]);
 398         SEQ_printf(m, "\n");
 399 }
 400
 401 static int sched_debug_show(struct seq_file *m, void *v)
 402 {
 403         int cpu = (unsigned long)(v - 2);
 404
 405         if (cpu != -1)
 406                 print_cpu(m, cpu);
 407         else
 408                 sched_debug_header(m);
 409
 410         return 0;
 411 }
 412
 413 void sysrq_sched_debug_show(void)
 414 {
 415         int cpu;
 416
 417         sched_debug_header(NULL);
 418         for_each_online_cpu(cpu)
 419                 print_cpu(NULL, cpu);
 420
 421 }
 422
 423 /*
 424  * This itererator needs some explanation.
 425  * It returns 1 for the header position.
 426  * This means 2 is cpu 0.
 427  * In a hotplugged system some cpus, including cpu 0, may be missing so we have
 428  * to use cpumask_* to iterate over the cpus.
 429  */
 430 static void *sched_debug_start(struct seq_file *file, loff_t *offset)
 431 {
 432         unsigned long n = *offset;
 433
 434         if (n == 0)
 435                 return (void *) 1;
 436
 437         n--;
 438
 439         if (n > 0)
 440                 n = cpumask_next(n - 1, cpu_online_mask);
 441         else
 442                 n = cpumask_first(cpu_online_mask);
 443
 444         *offset = n + 1;
 445
 446         if (n < nr_cpu_ids)
 447                 return (void *)(unsigned long)(n + 2);
 448         return NULL;
 449 }
 450
 451 static void *sched_debug_next(struct seq_file *file, void *data, loff_t *offset)
 452 {
 453         (*offset)++;
 454         return sched_debug_start(file, offset);
 455 }
 456
 457 static void sched_debug_stop(struct seq_file *file, void *data)
 458 {
 459 }
 460
 461 static const struct seq_operations sched_debug_sops = {
 462         .start = sched_debug_start,
 463         .next = sched_debug_next,
 464         .stop = sched_debug_stop,
 465         .show = sched_debug_show,
 466 };
 467
 468 static int sched_debug_release(struct inode *inode, struct file *file)
 469 {
 470         seq_release(inode, file);
 471
 472         return 0;
 473 }
 474
 475 static int sched_debug_open(struct inode *inode, struct file *filp)
 476 {
 477         int ret = 0;
 478
 479         ret = seq_open(filp, &sched_debug_sops);
 480
 481         return ret;
 482 }
 483
 484 static const struct file_operations sched_debug_fops = {
 485         .open           = sched_debug_open,
 486         .read           = seq_read,
 487         .llseek         = seq_lseek,
 488         .release        = sched_debug_release,
 489 };
 490
 491 static int __init init_sched_debug_procfs(void)
 492 {
 493         struct proc_dir_entry *pe;
 494
 495         pe = proc_create("sched_debug", 0444, NULL, &sched_debug_fops);
 496         if (!pe)
 497                 return -ENOMEM;
 498         return 0;
 499 }
 500
 501 __initcall(init_sched_debug_procfs);
 502
 503 #define __P(F) \
 504         SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)F)
 505 #define P(F) \
 506         SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)p->F)
 507 #define __PN(F) \
 508         SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)F))
 509 #define PN(F) \
 510         SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F))
 511
 512
 513 static void sched_show_numa(struct task_struct *p, struct seq_file *m)
 514 {
 515 #ifdef CONFIG_NUMA_BALANCING
 516         struct mempolicy *pol;
 517         int node, i;
 518
 519         if (p->mm)
 520                 P(mm->numa_scan_seq);
 521
 522         task_lock(p);
 523         pol = p->mempolicy;
 524         if (pol && !(pol->flags & MPOL_F_MORON))
 525                 pol = NULL;
 526         mpol_get(pol);
 527         task_unlock(p);
 528
 529         SEQ_printf(m, "numa_migrations, %ld\n", xchg(&p->numa_pages_migrated, 0));
 530
 531         for_each_online_node(node) {
 532                 for (i = 0; i < 2; i++) {
 533                         unsigned long nr_faults = -1;
 534                         int cpu_current, home_node;
 535
 536                         if (p->numa_faults_memory)
 537                                 nr_faults = p->numa_faults_memory[2*node + i];
 538
 539                         cpu_current = !i ? (task_node(p) == node) :
 540                                 (pol && node_isset(node, pol->v.nodes));
 541
 542                         home_node = (p->numa_preferred_nid == node);
 543
 544                         SEQ_printf(m, "numa_faults_memory, %d, %d, %d, %d, %ld\n",
 545                                 i, node, cpu_current, home_node, nr_faults);
 546                 }
 547         }
 548
 549         mpol_put(pol);
 550 #endif
 551 }
 552
 553 void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
 554 {
 555         unsigned long nr_switches;
 556
 557         SEQ_printf(m, "%s (%d, #threads: %d)\n", p->comm, task_pid_nr(p),
 558                                                 get_nr_threads(p));
 559         SEQ_printf(m,
 560                 "---------------------------------------------------------"
 561                 "----------\n");
 562 #define __P(F) \
 563         SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)F)
 564 #define P(F) \
 565         SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)p->F)
 566 #define __PN(F) \
 567         SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)F))
 568 #define PN(F) \
 569         SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F))
 570
 571         PN(se.exec_start);
 572         PN(se.vruntime);
 573         PN(se.sum_exec_runtime);
 574
 575         nr_switches = p->nvcsw + p->nivcsw;
 576
 577 #ifdef CONFIG_SCHEDSTATS
 578         PN(se.statistics.wait_start);
 579         PN(se.statistics.sleep_start);
 580         PN(se.statistics.block_start);
 581         PN(se.statistics.sleep_max);
 582         PN(se.statistics.block_max);
 583         PN(se.statistics.exec_max);
 584         PN(se.statistics.slice_max);
 585         PN(se.statistics.wait_max);
 586         PN(se.statistics.wait_sum);
 587         P(se.statistics.wait_count);
 588         PN(se.statistics.iowait_sum);
 589         P(se.statistics.iowait_count);
 590         P(se.nr_migrations);
 591         P(se.statistics.nr_migrations_cold);
 592         P(se.statistics.nr_failed_migrations_affine);
 593         P(se.statistics.nr_failed_migrations_running);
 594         P(se.statistics.nr_failed_migrations_hot);
 595         P(se.statistics.nr_forced_migrations);
 596         P(se.statistics.nr_wakeups);
 597         P(se.statistics.nr_wakeups_sync);
 598         P(se.statistics.nr_wakeups_migrate);
 599         P(se.statistics.nr_wakeups_local);
 600         P(se.statistics.nr_wakeups_remote);
 601         P(se.statistics.nr_wakeups_affine);
 602         P(se.statistics.nr_wakeups_affine_attempts);
 603         P(se.statistics.nr_wakeups_passive);
 604         P(se.statistics.nr_wakeups_idle);
 605
 606         {
 607                 u64 avg_atom, avg_per_cpu;
 608
 609                 avg_atom = p->se.sum_exec_runtime;
 610                 if (nr_switches)
 611                         do_div(avg_atom, nr_switches);
 612                 else
 613                         avg_atom = -1LL;
 614
 615                 avg_per_cpu = p->se.sum_exec_runtime;
 616                 if (p->se.nr_migrations) {
 617                         avg_per_cpu = div64_u64(avg_per_cpu,
 618                                                 p->se.nr_migrations);
 619                 } else {
 620                         avg_per_cpu = -1LL;
 621                 }
 622
 623                 __PN(avg_atom);
 624                 __PN(avg_per_cpu);
 625         }
 626 #endif
 627         __P(nr_switches);
 628         SEQ_printf(m, "%-45s:%21Ld\n",
 629                    "nr_voluntary_switches", (long long)p->nvcsw);
 630         SEQ_printf(m, "%-45s:%21Ld\n",
 631                    "nr_involuntary_switches", (long long)p->nivcsw);
 632
 633         P(se.load.weight);
 634 #ifdef CONFIG_SMP
 635         P(se.avg.runnable_avg_sum);
 636         P(se.avg.runnable_avg_period);
 637         P(se.avg.load_avg_contrib);
 638         P(se.avg.decay_count);
 639 #endif
 640         P(policy);
 641         P(prio);
 642 #undef PN
 643 #undef __PN
 644 #undef P
 645 #undef __P
 646
 647         {
 648                 unsigned int this_cpu = raw_smp_processor_id();
 649                 u64 t0, t1;
 650
 651                 t0 = cpu_clock(this_cpu);
 652                 t1 = cpu_clock(this_cpu);
 653                 SEQ_printf(m, "%-45s:%21Ld\n",
 654                            "clock-delta", (long long)(t1-t0));
 655         }
 656
 657         sched_show_numa(p, m);
 658 }
 659
 660 void proc_sched_set_task(struct task_struct *p)
 661 {
 662 #ifdef CONFIG_SCHEDSTATS
 663         memset(&p->se.statistics, 0, sizeof(p->se.statistics));
 664 #endif
 665 }