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                 return;
  73
  74         PN(se->exec_start);
  75         PN(se->vruntime);
  76         PN(se->sum_exec_runtime);
  77 #ifdef CONFIG_SCHEDSTATS
  78         PN(se->statistics.wait_start);
  79         PN(se->statistics.sleep_start);
  80         PN(se->statistics.block_start);
  81         PN(se->statistics.sleep_max);
  82         PN(se->statistics.block_max);
  83         PN(se->statistics.exec_max);
  84         PN(se->statistics.slice_max);
  85         PN(se->statistics.wait_max);
  86         PN(se->statistics.wait_sum);
  87         P(se->statistics.wait_count);
  88 #endif
  89         P(se->load.weight);
  90 #ifdef CONFIG_SMP
  91         P(se->avg.load_avg);
  92         P(se->avg.util_avg);
  93 #endif
  94 #undef PN
  95 #undef P
  96 }
  97 #endif
  98
  99 #ifdef CONFIG_CGROUP_SCHED
 100 static char group_path[PATH_MAX];
 101
 102 static char *task_group_path(struct task_group *tg)
 103 {
 104         if (autogroup_path(tg, group_path, PATH_MAX))
 105                 return group_path;
 106
 107         return cgroup_path(tg->css.cgroup, group_path, PATH_MAX);
 108 }
 109 #endif
 110
 111 static void
 112 print_task(struct seq_file *m, struct rq *rq, struct task_struct *p)
 113 {
 114         if (rq->curr == p)
 115                 SEQ_printf(m, "R");
 116         else
 117                 SEQ_printf(m, " ");
 118
 119         SEQ_printf(m, "%15s %5d %9Ld.%06ld %9Ld %5d ",
 120                 p->comm, task_pid_nr(p),
 121                 SPLIT_NS(p->se.vruntime),
 122                 (long long)(p->nvcsw + p->nivcsw),
 123                 p->prio);
 124 #ifdef CONFIG_SCHEDSTATS
 125         SEQ_printf(m, "%9Ld.%06ld %9Ld.%06ld %9Ld.%06ld",
 126                 SPLIT_NS(p->se.statistics.wait_sum),
 127                 SPLIT_NS(p->se.sum_exec_runtime),
 128                 SPLIT_NS(p->se.statistics.sum_sleep_runtime));
 129 #else
 130         SEQ_printf(m, "%9Ld.%06ld %9Ld.%06ld %9Ld.%06ld",
 131                 0LL, 0L,
 132                 SPLIT_NS(p->se.sum_exec_runtime),
 133                 0LL, 0L);
 134 #endif
 135 #ifdef CONFIG_NUMA_BALANCING
 136         SEQ_printf(m, " %d %d", task_node(p), task_numa_group_id(p));
 137 #endif
 138 #ifdef CONFIG_CGROUP_SCHED
 139         SEQ_printf(m, " %s", task_group_path(task_group(p)));
 140 #endif
 141
 142         SEQ_printf(m, "\n");
 143 }
 144
 145 static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu)
 146 {
 147         struct task_struct *g, *p;
 148
 149         SEQ_printf(m,
 150         "\nrunnable tasks:\n"
 151         "            task   PID         tree-key  switches  prio"
 152         "     wait-time             sum-exec        sum-sleep\n"
 153         "------------------------------------------------------"
 154         "----------------------------------------------------\n");
 155
 156         rcu_read_lock();
 157         for_each_process_thread(g, p) {
 158                 if (task_cpu(p) != rq_cpu)
 159                         continue;
 160
 161                 print_task(m, rq, p);
 162         }
 163         rcu_read_unlock();
 164 }
 165
 166 void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
 167 {
 168         s64 MIN_vruntime = -1, min_vruntime, max_vruntime = -1,
 169                 spread, rq0_min_vruntime, spread0;
 170         struct rq *rq = cpu_rq(cpu);
 171         struct sched_entity *last;
 172         unsigned long flags;
 173
 174 #ifdef CONFIG_FAIR_GROUP_SCHED
 175         SEQ_printf(m, "\ncfs_rq[%d]:%s\n", cpu, task_group_path(cfs_rq->tg));
 176 #else
 177         SEQ_printf(m, "\ncfs_rq[%d]:\n", cpu);
 178 #endif
 179         SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", "exec_clock",
 180                         SPLIT_NS(cfs_rq->exec_clock));
 181
 182         raw_spin_lock_irqsave(&rq->lock, flags);
 183         if (cfs_rq->rb_leftmost)
 184                 MIN_vruntime = (__pick_first_entity(cfs_rq))->vruntime;
 185         last = __pick_last_entity(cfs_rq);
 186         if (last)
 187                 max_vruntime = last->vruntime;
 188         min_vruntime = cfs_rq->min_vruntime;
 189         rq0_min_vruntime = cpu_rq(0)->cfs.min_vruntime;
 190         raw_spin_unlock_irqrestore(&rq->lock, flags);
 191         SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", "MIN_vruntime",
 192                         SPLIT_NS(MIN_vruntime));
 193         SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", "min_vruntime",
 194                         SPLIT_NS(min_vruntime));
 195         SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", "max_vruntime",
 196                         SPLIT_NS(max_vruntime));
 197         spread = max_vruntime - MIN_vruntime;
 198         SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", "spread",
 199                         SPLIT_NS(spread));
 200         spread0 = min_vruntime - rq0_min_vruntime;
 201         SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", "spread0",
 202                         SPLIT_NS(spread0));
 203         SEQ_printf(m, "  .%-30s: %d\n", "nr_spread_over",
 204                         cfs_rq->nr_spread_over);
 205         SEQ_printf(m, "  .%-30s: %d\n", "nr_running", cfs_rq->nr_running);
 206         SEQ_printf(m, "  .%-30s: %ld\n", "load", cfs_rq->load.weight);
 207 #ifdef CONFIG_SMP
 208         SEQ_printf(m, "  .%-30s: %lu\n", "load_avg",
 209                         cfs_rq->avg.load_avg);
 210         SEQ_printf(m, "  .%-30s: %lu\n", "runnable_load_avg",
 211                         cfs_rq->runnable_load_avg);
 212         SEQ_printf(m, "  .%-30s: %lu\n", "util_avg",
 213                         cfs_rq->avg.util_avg);
 214         SEQ_printf(m, "  .%-30s: %ld\n", "removed_load_avg",
 215                         atomic_long_read(&cfs_rq->removed_load_avg));
 216         SEQ_printf(m, "  .%-30s: %ld\n", "removed_util_avg",
 217                         atomic_long_read(&cfs_rq->removed_util_avg));
 218 #ifdef CONFIG_FAIR_GROUP_SCHED
 219         SEQ_printf(m, "  .%-30s: %lu\n", "tg_load_avg_contrib",
 220                         cfs_rq->tg_load_avg_contrib);
 221         SEQ_printf(m, "  .%-30s: %ld\n", "tg_load_avg",
 222                         atomic_long_read(&cfs_rq->tg->load_avg));
 223 #endif
 224 #endif
 225 #ifdef CONFIG_CFS_BANDWIDTH
 226         SEQ_printf(m, "  .%-30s: %d\n", "throttled",
 227                         cfs_rq->throttled);
 228         SEQ_printf(m, "  .%-30s: %d\n", "throttle_count",
 229                         cfs_rq->throttle_count);
 230 #endif
 231
 232 #ifdef CONFIG_FAIR_GROUP_SCHED
 233         print_cfs_group_stats(m, cpu, cfs_rq->tg);
 234 #endif
 235 }
 236
 237 void print_rt_rq(struct seq_file *m, int cpu, struct rt_rq *rt_rq)
 238 {
 239 #ifdef CONFIG_RT_GROUP_SCHED
 240         SEQ_printf(m, "\nrt_rq[%d]:%s\n", cpu, task_group_path(rt_rq->tg));
 241 #else
 242         SEQ_printf(m, "\nrt_rq[%d]:\n", cpu);
 243 #endif
 244
 245 #define P(x) \
 246         SEQ_printf(m, "  .%-30s: %Ld\n", #x, (long long)(rt_rq->x))
 247 #define PN(x) \
 248         SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rt_rq->x))
 249
 250         P(rt_nr_running);
 251         P(rt_throttled);
 252         PN(rt_time);
 253         PN(rt_runtime);
 254
 255 #undef PN
 256 #undef P
 257 }
 258
 259 void print_dl_rq(struct seq_file *m, int cpu, struct dl_rq *dl_rq)
 260 {
 261         SEQ_printf(m, "\ndl_rq[%d]:\n", cpu);
 262         SEQ_printf(m, "  .%-30s: %ld\n", "dl_nr_running", dl_rq->dl_nr_running);
 263 }
 264
 265 extern __read_mostly int sched_clock_running;
 266
 267 static void print_cpu(struct seq_file *m, int cpu)
 268 {
 269         struct rq *rq = cpu_rq(cpu);
 270         unsigned long flags;
 271
 272 #ifdef CONFIG_X86
 273         {
 274                 unsigned int freq = cpu_khz ? : 1;
 275
 276                 SEQ_printf(m, "cpu#%d, %u.%03u MHz\n",
 277                            cpu, freq / 1000, (freq % 1000));
 278         }
 279 #else
 280         SEQ_printf(m, "cpu#%d\n", cpu);
 281 #endif
 282
 283 #define P(x)                                                            \
 284 do {                                                                    \
 285         if (sizeof(rq->x) == 4)                                         \
 286                 SEQ_printf(m, "  .%-30s: %ld\n", #x, (long)(rq->x));    \
 287         else                                                            \
 288                 SEQ_printf(m, "  .%-30s: %Ld\n", #x, (long long)(rq->x));\
 289 } while (0)
 290
 291 #define PN(x) \
 292         SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rq->x))
 293
 294         P(nr_running);
 295         SEQ_printf(m, "  .%-30s: %lu\n", "load",
 296                    rq->load.weight);
 297         P(nr_switches);
 298         P(nr_load_updates);
 299         P(nr_uninterruptible);
 300         PN(next_balance);
 301         SEQ_printf(m, "  .%-30s: %ld\n", "curr->pid", (long)(task_pid_nr(rq->curr)));
 302         PN(clock);
 303         PN(clock_task);
 304         P(cpu_load[0]);
 305         P(cpu_load[1]);
 306         P(cpu_load[2]);
 307         P(cpu_load[3]);
 308         P(cpu_load[4]);
 309 #undef P
 310 #undef PN
 311
 312 #ifdef CONFIG_SCHEDSTATS
 313 #define P(n) SEQ_printf(m, "  .%-30s: %d\n", #n, rq->n);
 314 #define P64(n) SEQ_printf(m, "  .%-30s: %Ld\n", #n, rq->n);
 315
 316         P(yld_count);
 317
 318         P(sched_count);
 319         P(sched_goidle);
 320 #ifdef CONFIG_SMP
 321         P64(avg_idle);
 322         P64(max_idle_balance_cost);
 323 #endif
 324
 325         P(ttwu_count);
 326         P(ttwu_local);
 327
 328 #undef P
 329 #undef P64
 330 #endif
 331         spin_lock_irqsave(&sched_debug_lock, flags);
 332         print_cfs_stats(m, cpu);
 333         print_rt_stats(m, cpu);
 334         print_dl_stats(m, cpu);
 335
 336         print_rq(m, rq, cpu);
 337         spin_unlock_irqrestore(&sched_debug_lock, flags);
 338         SEQ_printf(m, "\n");
 339 }
 340
 341 static const char *sched_tunable_scaling_names[] = {
 342         "none",
 343         "logaritmic",
 344         "linear"
 345 };
 346
 347 static void sched_debug_header(struct seq_file *m)
 348 {
 349         u64 ktime, sched_clk, cpu_clk;
 350         unsigned long flags;
 351
 352         local_irq_save(flags);
 353         ktime = ktime_to_ns(ktime_get());
 354         sched_clk = sched_clock();
 355         cpu_clk = local_clock();
 356         local_irq_restore(flags);
 357
 358         SEQ_printf(m, "Sched Debug Version: v0.11, %s %.*s\n",
 359                 init_utsname()->release,
 360                 (int)strcspn(init_utsname()->version, " "),
 361                 init_utsname()->version);
 362
 363 #define P(x) \
 364         SEQ_printf(m, "%-40s: %Ld\n", #x, (long long)(x))
 365 #define PN(x) \
 366         SEQ_printf(m, "%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x))
 367         PN(ktime);
 368         PN(sched_clk);
 369         PN(cpu_clk);
 370         P(jiffies);
 371 #ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
 372         P(sched_clock_stable());
 373 #endif
 374 #undef PN
 375 #undef P
 376
 377         SEQ_printf(m, "\n");
 378         SEQ_printf(m, "sysctl_sched\n");
 379
 380 #define P(x) \
 381         SEQ_printf(m, "  .%-40s: %Ld\n", #x, (long long)(x))
 382 #define PN(x) \
 383         SEQ_printf(m, "  .%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x))
 384         PN(sysctl_sched_latency);
 385         PN(sysctl_sched_min_granularity);
 386         PN(sysctl_sched_wakeup_granularity);
 387         P(sysctl_sched_child_runs_first);
 388         P(sysctl_sched_features);
 389 #undef PN
 390 #undef P
 391
 392         SEQ_printf(m, "  .%-40s: %d (%s)\n",
 393                 "sysctl_sched_tunable_scaling",
 394                 sysctl_sched_tunable_scaling,
 395                 sched_tunable_scaling_names[sysctl_sched_tunable_scaling]);
 396         SEQ_printf(m, "\n");
 397 }
 398
 399 static int sched_debug_show(struct seq_file *m, void *v)
 400 {
 401         int cpu = (unsigned long)(v - 2);
 402
 403         if (cpu != -1)
 404                 print_cpu(m, cpu);
 405         else
 406                 sched_debug_header(m);
 407
 408         return 0;
 409 }
 410
 411 void sysrq_sched_debug_show(void)
 412 {
 413         int cpu;
 414
 415         sched_debug_header(NULL);
 416         for_each_online_cpu(cpu)
 417                 print_cpu(NULL, cpu);
 418
 419 }
 420
 421 /*
 422  * This itererator needs some explanation.
 423  * It returns 1 for the header position.
 424  * This means 2 is cpu 0.
 425  * In a hotplugged system some cpus, including cpu 0, may be missing so we have
 426  * to use cpumask_* to iterate over the cpus.
 427  */
 428 static void *sched_debug_start(struct seq_file *file, loff_t *offset)
 429 {
 430         unsigned long n = *offset;
 431
 432         if (n == 0)
 433                 return (void *) 1;
 434
 435         n--;
 436
 437         if (n > 0)
 438                 n = cpumask_next(n - 1, cpu_online_mask);
 439         else
 440                 n = cpumask_first(cpu_online_mask);
 441
 442         *offset = n + 1;
 443
 444         if (n < nr_cpu_ids)
 445                 return (void *)(unsigned long)(n + 2);
 446         return NULL;
 447 }
 448
 449 static void *sched_debug_next(struct seq_file *file, void *data, loff_t *offset)
 450 {
 451         (*offset)++;
 452         return sched_debug_start(file, offset);
 453 }
 454
 455 static void sched_debug_stop(struct seq_file *file, void *data)
 456 {
 457 }
 458
 459 static const struct seq_operations sched_debug_sops = {
 460         .start = sched_debug_start,
 461         .next = sched_debug_next,
 462         .stop = sched_debug_stop,
 463         .show = sched_debug_show,
 464 };
 465
 466 static int sched_debug_release(struct inode *inode, struct file *file)
 467 {
 468         seq_release(inode, file);
 469
 470         return 0;
 471 }
 472
 473 static int sched_debug_open(struct inode *inode, struct file *filp)
 474 {
 475         int ret = 0;
 476
 477         ret = seq_open(filp, &sched_debug_sops);
 478
 479         return ret;
 480 }
 481
 482 static const struct file_operations sched_debug_fops = {
 483         .open           = sched_debug_open,
 484         .read           = seq_read,
 485         .llseek         = seq_lseek,
 486         .release        = sched_debug_release,
 487 };
 488
 489 static int __init init_sched_debug_procfs(void)
 490 {
 491         struct proc_dir_entry *pe;
 492
 493         pe = proc_create("sched_debug", 0444, NULL, &sched_debug_fops);
 494         if (!pe)
 495                 return -ENOMEM;
 496         return 0;
 497 }
 498
 499 __initcall(init_sched_debug_procfs);
 500
 501 #define __P(F) \
 502         SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)F)
 503 #define P(F) \
 504         SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)p->F)
 505 #define __PN(F) \
 506         SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)F))
 507 #define PN(F) \
 508         SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F))
 509
 510
 511 #ifdef CONFIG_NUMA_BALANCING
 512 void print_numa_stats(struct seq_file *m, int node, unsigned long tsf,
 513                 unsigned long tpf, unsigned long gsf, unsigned long gpf)
 514 {
 515         SEQ_printf(m, "numa_faults node=%d ", node);
 516         SEQ_printf(m, "task_private=%lu task_shared=%lu ", tsf, tpf);
 517         SEQ_printf(m, "group_private=%lu group_shared=%lu\n", gsf, gpf);
 518 }
 519 #endif
 520
 521
 522 static void sched_show_numa(struct task_struct *p, struct seq_file *m)
 523 {
 524 #ifdef CONFIG_NUMA_BALANCING
 525         struct mempolicy *pol;
 526
 527         if (p->mm)
 528                 P(mm->numa_scan_seq);
 529
 530         task_lock(p);
 531         pol = p->mempolicy;
 532         if (pol && !(pol->flags & MPOL_F_MORON))
 533                 pol = NULL;
 534         mpol_get(pol);
 535         task_unlock(p);
 536
 537         P(numa_pages_migrated);
 538         P(numa_preferred_nid);
 539         P(total_numa_faults);
 540         SEQ_printf(m, "current_node=%d, numa_group_id=%d\n",
 541                         task_node(p), task_numa_group_id(p));
 542         show_numa_stats(p, m);
 543         mpol_put(pol);
 544 #endif
 545 }
 546
 547 void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
 548 {
 549         unsigned long nr_switches;
 550
 551         SEQ_printf(m, "%s (%d, #threads: %d)\n", p->comm, task_pid_nr(p),
 552                                                 get_nr_threads(p));
 553         SEQ_printf(m,
 554                 "---------------------------------------------------------"
 555                 "----------\n");
 556 #define __P(F) \
 557         SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)F)
 558 #define P(F) \
 559         SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)p->F)
 560 #define __PN(F) \
 561         SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)F))
 562 #define PN(F) \
 563         SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F))
 564
 565         PN(se.exec_start);
 566         PN(se.vruntime);
 567         PN(se.sum_exec_runtime);
 568
 569         nr_switches = p->nvcsw + p->nivcsw;
 570
 571 #ifdef CONFIG_SCHEDSTATS
 572         PN(se.statistics.sum_sleep_runtime);
 573         PN(se.statistics.wait_start);
 574         PN(se.statistics.sleep_start);
 575         PN(se.statistics.block_start);
 576         PN(se.statistics.sleep_max);
 577         PN(se.statistics.block_max);
 578         PN(se.statistics.exec_max);
 579         PN(se.statistics.slice_max);
 580         PN(se.statistics.wait_max);
 581         PN(se.statistics.wait_sum);
 582         P(se.statistics.wait_count);
 583         PN(se.statistics.iowait_sum);
 584         P(se.statistics.iowait_count);
 585         P(se.nr_migrations);
 586         P(se.statistics.nr_migrations_cold);
 587         P(se.statistics.nr_failed_migrations_affine);
 588         P(se.statistics.nr_failed_migrations_running);
 589         P(se.statistics.nr_failed_migrations_hot);
 590         P(se.statistics.nr_forced_migrations);
 591         P(se.statistics.nr_wakeups);
 592         P(se.statistics.nr_wakeups_sync);
 593         P(se.statistics.nr_wakeups_migrate);
 594         P(se.statistics.nr_wakeups_local);
 595         P(se.statistics.nr_wakeups_remote);
 596         P(se.statistics.nr_wakeups_affine);
 597         P(se.statistics.nr_wakeups_affine_attempts);
 598         P(se.statistics.nr_wakeups_passive);
 599         P(se.statistics.nr_wakeups_idle);
 600
 601         {
 602                 u64 avg_atom, avg_per_cpu;
 603
 604                 avg_atom = p->se.sum_exec_runtime;
 605                 if (nr_switches)
 606                         avg_atom = div64_ul(avg_atom, nr_switches);
 607                 else
 608                         avg_atom = -1LL;
 609
 610                 avg_per_cpu = p->se.sum_exec_runtime;
 611                 if (p->se.nr_migrations) {
 612                         avg_per_cpu = div64_u64(avg_per_cpu,
 613                                                 p->se.nr_migrations);
 614                 } else {
 615                         avg_per_cpu = -1LL;
 616                 }
 617
 618                 __PN(avg_atom);
 619                 __PN(avg_per_cpu);
 620         }
 621 #endif
 622         __P(nr_switches);
 623         SEQ_printf(m, "%-45s:%21Ld\n",
 624                    "nr_voluntary_switches", (long long)p->nvcsw);
 625         SEQ_printf(m, "%-45s:%21Ld\n",
 626                    "nr_involuntary_switches", (long long)p->nivcsw);
 627
 628         P(se.load.weight);
 629 #ifdef CONFIG_SMP
 630         P(se.avg.load_sum);
 631         P(se.avg.util_sum);
 632         P(se.avg.load_avg);
 633         P(se.avg.util_avg);
 634         P(se.avg.last_update_time);
 635 #endif
 636         P(policy);
 637         P(prio);
 638 #undef PN
 639 #undef __PN
 640 #undef P
 641 #undef __P
 642
 643         {
 644                 unsigned int this_cpu = raw_smp_processor_id();
 645                 u64 t0, t1;
 646
 647                 t0 = cpu_clock(this_cpu);
 648                 t1 = cpu_clock(this_cpu);
 649                 SEQ_printf(m, "%-45s:%21Ld\n",
 650                            "clock-delta", (long long)(t1-t0));
 651         }
 652
 653         sched_show_numa(p, m);
 654 }
 655
 656 void proc_sched_set_task(struct task_struct *p)
 657 {
 658 #ifdef CONFIG_SCHEDSTATS
 659         memset(&p->se.statistics, 0, sizeof(p->se.statistics));
 660 #endif
 661 }