6 * Copyright(C) 2007, Red Hat, Inc., Ingo Molnar
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.
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 #include <linux/debugfs.h>
23 static DEFINE_SPINLOCK(sched_debug_lock);
26 * This allows printing both to /proc/sched_debug and
29 #define SEQ_printf(m, x...) \
38 * Ease the printing of nsec fields:
40 static long long nsec_high(unsigned long long nsec)
42 if ((long long)nsec < 0) {
44 do_div(nsec, 1000000);
47 do_div(nsec, 1000000);
52 static unsigned long nsec_low(unsigned long long nsec)
54 if ((long long)nsec < 0)
57 return do_div(nsec, 1000000);
60 #define SPLIT_NS(x) nsec_high(x), nsec_low(x)
62 #define SCHED_FEAT(name, enabled) \
65 static const char * const sched_feat_names[] = {
71 static int sched_feat_show(struct seq_file *m, void *v)
75 for (i = 0; i < __SCHED_FEAT_NR; i++) {
76 if (!(sysctl_sched_features & (1UL << i)))
78 seq_printf(m, "%s ", sched_feat_names[i]);
85 #ifdef HAVE_JUMP_LABEL
87 #define jump_label_key__true STATIC_KEY_INIT_TRUE
88 #define jump_label_key__false STATIC_KEY_INIT_FALSE
90 #define SCHED_FEAT(name, enabled) \
91 jump_label_key__##enabled ,
93 struct static_key sched_feat_keys[__SCHED_FEAT_NR] = {
99 static void sched_feat_disable(int i)
101 static_key_disable(&sched_feat_keys[i]);
104 static void sched_feat_enable(int i)
106 static_key_enable(&sched_feat_keys[i]);
109 static void sched_feat_disable(int i) { };
110 static void sched_feat_enable(int i) { };
111 #endif /* HAVE_JUMP_LABEL */
113 static int sched_feat_set(char *cmp)
118 if (strncmp(cmp, "NO_", 3) == 0) {
123 for (i = 0; i < __SCHED_FEAT_NR; i++) {
124 if (strcmp(cmp, sched_feat_names[i]) == 0) {
126 sysctl_sched_features &= ~(1UL << i);
127 sched_feat_disable(i);
129 sysctl_sched_features |= (1UL << i);
130 sched_feat_enable(i);
140 sched_feat_write(struct file *filp, const char __user *ubuf,
141 size_t cnt, loff_t *ppos)
151 if (copy_from_user(&buf, ubuf, cnt))
157 /* Ensure the static_key remains in a consistent state */
158 inode = file_inode(filp);
160 i = sched_feat_set(cmp);
162 if (i == __SCHED_FEAT_NR)
170 static int sched_feat_open(struct inode *inode, struct file *filp)
172 return single_open(filp, sched_feat_show, NULL);
175 static const struct file_operations sched_feat_fops = {
176 .open = sched_feat_open,
177 .write = sched_feat_write,
180 .release = single_release,
183 static __init int sched_init_debug(void)
185 debugfs_create_file("sched_features", 0644, NULL, NULL,
190 late_initcall(sched_init_debug);
196 static struct ctl_table sd_ctl_dir[] = {
198 .procname = "sched_domain",
204 static struct ctl_table sd_ctl_root[] = {
206 .procname = "kernel",
213 static struct ctl_table *sd_alloc_ctl_entry(int n)
215 struct ctl_table *entry =
216 kcalloc(n, sizeof(struct ctl_table), GFP_KERNEL);
221 static void sd_free_ctl_entry(struct ctl_table **tablep)
223 struct ctl_table *entry;
226 * In the intermediate directories, both the child directory and
227 * procname are dynamically allocated and could fail but the mode
228 * will always be set. In the lowest directory the names are
229 * static strings and all have proc handlers.
231 for (entry = *tablep; entry->mode; entry++) {
233 sd_free_ctl_entry(&entry->child);
234 if (entry->proc_handler == NULL)
235 kfree(entry->procname);
242 static int min_load_idx = 0;
243 static int max_load_idx = CPU_LOAD_IDX_MAX-1;
246 set_table_entry(struct ctl_table *entry,
247 const char *procname, void *data, int maxlen,
248 umode_t mode, proc_handler *proc_handler,
251 entry->procname = procname;
253 entry->maxlen = maxlen;
255 entry->proc_handler = proc_handler;
258 entry->extra1 = &min_load_idx;
259 entry->extra2 = &max_load_idx;
263 static struct ctl_table *
264 sd_alloc_ctl_domain_table(struct sched_domain *sd)
266 struct ctl_table *table = sd_alloc_ctl_entry(14);
271 set_table_entry(&table[0], "min_interval", &sd->min_interval,
272 sizeof(long), 0644, proc_doulongvec_minmax, false);
273 set_table_entry(&table[1], "max_interval", &sd->max_interval,
274 sizeof(long), 0644, proc_doulongvec_minmax, false);
275 set_table_entry(&table[2], "busy_idx", &sd->busy_idx,
276 sizeof(int), 0644, proc_dointvec_minmax, true);
277 set_table_entry(&table[3], "idle_idx", &sd->idle_idx,
278 sizeof(int), 0644, proc_dointvec_minmax, true);
279 set_table_entry(&table[4], "newidle_idx", &sd->newidle_idx,
280 sizeof(int), 0644, proc_dointvec_minmax, true);
281 set_table_entry(&table[5], "wake_idx", &sd->wake_idx,
282 sizeof(int), 0644, proc_dointvec_minmax, true);
283 set_table_entry(&table[6], "forkexec_idx", &sd->forkexec_idx,
284 sizeof(int), 0644, proc_dointvec_minmax, true);
285 set_table_entry(&table[7], "busy_factor", &sd->busy_factor,
286 sizeof(int), 0644, proc_dointvec_minmax, false);
287 set_table_entry(&table[8], "imbalance_pct", &sd->imbalance_pct,
288 sizeof(int), 0644, proc_dointvec_minmax, false);
289 set_table_entry(&table[9], "cache_nice_tries",
290 &sd->cache_nice_tries,
291 sizeof(int), 0644, proc_dointvec_minmax, false);
292 set_table_entry(&table[10], "flags", &sd->flags,
293 sizeof(int), 0644, proc_dointvec_minmax, false);
294 set_table_entry(&table[11], "max_newidle_lb_cost",
295 &sd->max_newidle_lb_cost,
296 sizeof(long), 0644, proc_doulongvec_minmax, false);
297 set_table_entry(&table[12], "name", sd->name,
298 CORENAME_MAX_SIZE, 0444, proc_dostring, false);
299 /* &table[13] is terminator */
304 static struct ctl_table *sd_alloc_ctl_cpu_table(int cpu)
306 struct ctl_table *entry, *table;
307 struct sched_domain *sd;
308 int domain_num = 0, i;
311 for_each_domain(cpu, sd)
313 entry = table = sd_alloc_ctl_entry(domain_num + 1);
318 for_each_domain(cpu, sd) {
319 snprintf(buf, 32, "domain%d", i);
320 entry->procname = kstrdup(buf, GFP_KERNEL);
322 entry->child = sd_alloc_ctl_domain_table(sd);
329 static struct ctl_table_header *sd_sysctl_header;
330 void register_sched_domain_sysctl(void)
332 int i, cpu_num = num_possible_cpus();
333 struct ctl_table *entry = sd_alloc_ctl_entry(cpu_num + 1);
336 WARN_ON(sd_ctl_dir[0].child);
337 sd_ctl_dir[0].child = entry;
342 for_each_possible_cpu(i) {
343 snprintf(buf, 32, "cpu%d", i);
344 entry->procname = kstrdup(buf, GFP_KERNEL);
346 entry->child = sd_alloc_ctl_cpu_table(i);
350 WARN_ON(sd_sysctl_header);
351 sd_sysctl_header = register_sysctl_table(sd_ctl_root);
354 /* may be called multiple times per register */
355 void unregister_sched_domain_sysctl(void)
357 unregister_sysctl_table(sd_sysctl_header);
358 sd_sysctl_header = NULL;
359 if (sd_ctl_dir[0].child)
360 sd_free_ctl_entry(&sd_ctl_dir[0].child);
362 #endif /* CONFIG_SYSCTL */
363 #endif /* CONFIG_SMP */
365 #ifdef CONFIG_FAIR_GROUP_SCHED
366 static void print_cfs_group_stats(struct seq_file *m, int cpu, struct task_group *tg)
368 struct sched_entity *se = tg->se[cpu];
371 SEQ_printf(m, " .%-30s: %lld\n", #F, (long long)F)
373 SEQ_printf(m, " .%-30s: %lld.%06ld\n", #F, SPLIT_NS((long long)F))
380 PN(se->sum_exec_runtime);
381 #ifdef CONFIG_SCHEDSTATS
382 if (schedstat_enabled()) {
383 PN(se->statistics.wait_start);
384 PN(se->statistics.sleep_start);
385 PN(se->statistics.block_start);
386 PN(se->statistics.sleep_max);
387 PN(se->statistics.block_max);
388 PN(se->statistics.exec_max);
389 PN(se->statistics.slice_max);
390 PN(se->statistics.wait_max);
391 PN(se->statistics.wait_sum);
392 P(se->statistics.wait_count);
405 #ifdef CONFIG_CGROUP_SCHED
406 static char group_path[PATH_MAX];
408 static char *task_group_path(struct task_group *tg)
410 if (autogroup_path(tg, group_path, PATH_MAX))
413 return cgroup_path(tg->css.cgroup, group_path, PATH_MAX);
418 print_task(struct seq_file *m, struct rq *rq, struct task_struct *p)
425 SEQ_printf(m, "%15s %5d %9Ld.%06ld %9Ld %5d ",
426 p->comm, task_pid_nr(p),
427 SPLIT_NS(p->se.vruntime),
428 (long long)(p->nvcsw + p->nivcsw),
431 SEQ_printf(m, "%9Ld.%06ld %9Ld.%06ld %9Ld.%06ld",
432 SPLIT_NS(schedstat_val(p, se.statistics.wait_sum)),
433 SPLIT_NS(p->se.sum_exec_runtime),
434 SPLIT_NS(schedstat_val(p, se.statistics.sum_sleep_runtime)));
436 #ifdef CONFIG_NUMA_BALANCING
437 SEQ_printf(m, " %d %d", task_node(p), task_numa_group_id(p));
439 #ifdef CONFIG_CGROUP_SCHED
440 SEQ_printf(m, " %s", task_group_path(task_group(p)));
446 static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu)
448 struct task_struct *g, *p;
451 "\nrunnable tasks:\n"
452 " task PID tree-key switches prio"
453 " wait-time sum-exec sum-sleep\n"
454 "------------------------------------------------------"
455 "----------------------------------------------------\n");
458 for_each_process_thread(g, p) {
459 if (task_cpu(p) != rq_cpu)
462 print_task(m, rq, p);
467 void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
469 s64 MIN_vruntime = -1, min_vruntime, max_vruntime = -1,
470 spread, rq0_min_vruntime, spread0;
471 struct rq *rq = cpu_rq(cpu);
472 struct sched_entity *last;
475 #ifdef CONFIG_FAIR_GROUP_SCHED
476 SEQ_printf(m, "\ncfs_rq[%d]:%s\n", cpu, task_group_path(cfs_rq->tg));
478 SEQ_printf(m, "\ncfs_rq[%d]:\n", cpu);
480 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "exec_clock",
481 SPLIT_NS(cfs_rq->exec_clock));
483 raw_spin_lock_irqsave(&rq->lock, flags);
484 if (cfs_rq->rb_leftmost)
485 MIN_vruntime = (__pick_first_entity(cfs_rq))->vruntime;
486 last = __pick_last_entity(cfs_rq);
488 max_vruntime = last->vruntime;
489 min_vruntime = cfs_rq->min_vruntime;
490 rq0_min_vruntime = cpu_rq(0)->cfs.min_vruntime;
491 raw_spin_unlock_irqrestore(&rq->lock, flags);
492 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "MIN_vruntime",
493 SPLIT_NS(MIN_vruntime));
494 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "min_vruntime",
495 SPLIT_NS(min_vruntime));
496 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "max_vruntime",
497 SPLIT_NS(max_vruntime));
498 spread = max_vruntime - MIN_vruntime;
499 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "spread",
501 spread0 = min_vruntime - rq0_min_vruntime;
502 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "spread0",
504 SEQ_printf(m, " .%-30s: %d\n", "nr_spread_over",
505 cfs_rq->nr_spread_over);
506 SEQ_printf(m, " .%-30s: %d\n", "nr_running", cfs_rq->nr_running);
507 SEQ_printf(m, " .%-30s: %ld\n", "load", cfs_rq->load.weight);
509 SEQ_printf(m, " .%-30s: %lu\n", "load_avg",
510 cfs_rq->avg.load_avg);
511 SEQ_printf(m, " .%-30s: %lu\n", "runnable_load_avg",
512 cfs_rq->runnable_load_avg);
513 SEQ_printf(m, " .%-30s: %lu\n", "util_avg",
514 cfs_rq->avg.util_avg);
515 SEQ_printf(m, " .%-30s: %ld\n", "removed_load_avg",
516 atomic_long_read(&cfs_rq->removed_load_avg));
517 SEQ_printf(m, " .%-30s: %ld\n", "removed_util_avg",
518 atomic_long_read(&cfs_rq->removed_util_avg));
519 #ifdef CONFIG_FAIR_GROUP_SCHED
520 SEQ_printf(m, " .%-30s: %lu\n", "tg_load_avg_contrib",
521 cfs_rq->tg_load_avg_contrib);
522 SEQ_printf(m, " .%-30s: %ld\n", "tg_load_avg",
523 atomic_long_read(&cfs_rq->tg->load_avg));
526 #ifdef CONFIG_CFS_BANDWIDTH
527 SEQ_printf(m, " .%-30s: %d\n", "throttled",
529 SEQ_printf(m, " .%-30s: %d\n", "throttle_count",
530 cfs_rq->throttle_count);
533 #ifdef CONFIG_FAIR_GROUP_SCHED
534 print_cfs_group_stats(m, cpu, cfs_rq->tg);
538 void print_rt_rq(struct seq_file *m, int cpu, struct rt_rq *rt_rq)
540 #ifdef CONFIG_RT_GROUP_SCHED
541 SEQ_printf(m, "\nrt_rq[%d]:%s\n", cpu, task_group_path(rt_rq->tg));
543 SEQ_printf(m, "\nrt_rq[%d]:\n", cpu);
547 SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rt_rq->x))
549 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rt_rq->x))
560 void print_dl_rq(struct seq_file *m, int cpu, struct dl_rq *dl_rq)
564 SEQ_printf(m, "\ndl_rq[%d]:\n", cpu);
565 SEQ_printf(m, " .%-30s: %ld\n", "dl_nr_running", dl_rq->dl_nr_running);
567 dl_bw = &cpu_rq(cpu)->rd->dl_bw;
569 dl_bw = &dl_rq->dl_bw;
571 SEQ_printf(m, " .%-30s: %lld\n", "dl_bw->bw", dl_bw->bw);
572 SEQ_printf(m, " .%-30s: %lld\n", "dl_bw->total_bw", dl_bw->total_bw);
575 extern __read_mostly int sched_clock_running;
577 static void print_cpu(struct seq_file *m, int cpu)
579 struct rq *rq = cpu_rq(cpu);
584 unsigned int freq = cpu_khz ? : 1;
586 SEQ_printf(m, "cpu#%d, %u.%03u MHz\n",
587 cpu, freq / 1000, (freq % 1000));
590 SEQ_printf(m, "cpu#%d\n", cpu);
595 if (sizeof(rq->x) == 4) \
596 SEQ_printf(m, " .%-30s: %ld\n", #x, (long)(rq->x)); \
598 SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rq->x));\
602 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rq->x))
605 SEQ_printf(m, " .%-30s: %lu\n", "load",
609 P(nr_uninterruptible);
611 SEQ_printf(m, " .%-30s: %ld\n", "curr->pid", (long)(task_pid_nr(rq->curr)));
623 #define P64(n) SEQ_printf(m, " .%-30s: %Ld\n", #n, rq->n);
625 P64(max_idle_balance_cost);
629 #ifdef CONFIG_SCHEDSTATS
630 #define P(n) SEQ_printf(m, " .%-30s: %d\n", #n, rq->n);
632 if (schedstat_enabled()) {
642 spin_lock_irqsave(&sched_debug_lock, flags);
643 print_cfs_stats(m, cpu);
644 print_rt_stats(m, cpu);
645 print_dl_stats(m, cpu);
647 print_rq(m, rq, cpu);
648 spin_unlock_irqrestore(&sched_debug_lock, flags);
652 static const char *sched_tunable_scaling_names[] = {
658 static void sched_debug_header(struct seq_file *m)
660 u64 ktime, sched_clk, cpu_clk;
663 local_irq_save(flags);
664 ktime = ktime_to_ns(ktime_get());
665 sched_clk = sched_clock();
666 cpu_clk = local_clock();
667 local_irq_restore(flags);
669 SEQ_printf(m, "Sched Debug Version: v0.11, %s %.*s\n",
670 init_utsname()->release,
671 (int)strcspn(init_utsname()->version, " "),
672 init_utsname()->version);
675 SEQ_printf(m, "%-40s: %Ld\n", #x, (long long)(x))
677 SEQ_printf(m, "%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x))
682 #ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
683 P(sched_clock_stable());
689 SEQ_printf(m, "sysctl_sched\n");
692 SEQ_printf(m, " .%-40s: %Ld\n", #x, (long long)(x))
694 SEQ_printf(m, " .%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x))
695 PN(sysctl_sched_latency);
696 PN(sysctl_sched_min_granularity);
697 PN(sysctl_sched_wakeup_granularity);
698 P(sysctl_sched_child_runs_first);
699 P(sysctl_sched_features);
703 SEQ_printf(m, " .%-40s: %d (%s)\n",
704 "sysctl_sched_tunable_scaling",
705 sysctl_sched_tunable_scaling,
706 sched_tunable_scaling_names[sysctl_sched_tunable_scaling]);
710 static int sched_debug_show(struct seq_file *m, void *v)
712 int cpu = (unsigned long)(v - 2);
717 sched_debug_header(m);
722 void sysrq_sched_debug_show(void)
726 sched_debug_header(NULL);
727 for_each_online_cpu(cpu)
728 print_cpu(NULL, cpu);
733 * This itererator needs some explanation.
734 * It returns 1 for the header position.
735 * This means 2 is cpu 0.
736 * In a hotplugged system some cpus, including cpu 0, may be missing so we have
737 * to use cpumask_* to iterate over the cpus.
739 static void *sched_debug_start(struct seq_file *file, loff_t *offset)
741 unsigned long n = *offset;
749 n = cpumask_next(n - 1, cpu_online_mask);
751 n = cpumask_first(cpu_online_mask);
756 return (void *)(unsigned long)(n + 2);
760 static void *sched_debug_next(struct seq_file *file, void *data, loff_t *offset)
763 return sched_debug_start(file, offset);
766 static void sched_debug_stop(struct seq_file *file, void *data)
770 static const struct seq_operations sched_debug_sops = {
771 .start = sched_debug_start,
772 .next = sched_debug_next,
773 .stop = sched_debug_stop,
774 .show = sched_debug_show,
777 static int sched_debug_release(struct inode *inode, struct file *file)
779 seq_release(inode, file);
784 static int sched_debug_open(struct inode *inode, struct file *filp)
788 ret = seq_open(filp, &sched_debug_sops);
793 static const struct file_operations sched_debug_fops = {
794 .open = sched_debug_open,
797 .release = sched_debug_release,
800 static int __init init_sched_debug_procfs(void)
802 struct proc_dir_entry *pe;
804 pe = proc_create("sched_debug", 0444, NULL, &sched_debug_fops);
810 __initcall(init_sched_debug_procfs);
813 SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)F)
815 SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)p->F)
817 SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)F))
819 SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F))
822 #ifdef CONFIG_NUMA_BALANCING
823 void print_numa_stats(struct seq_file *m, int node, unsigned long tsf,
824 unsigned long tpf, unsigned long gsf, unsigned long gpf)
826 SEQ_printf(m, "numa_faults node=%d ", node);
827 SEQ_printf(m, "task_private=%lu task_shared=%lu ", tsf, tpf);
828 SEQ_printf(m, "group_private=%lu group_shared=%lu\n", gsf, gpf);
833 static void sched_show_numa(struct task_struct *p, struct seq_file *m)
835 #ifdef CONFIG_NUMA_BALANCING
836 struct mempolicy *pol;
839 P(mm->numa_scan_seq);
843 if (pol && !(pol->flags & MPOL_F_MORON))
848 P(numa_pages_migrated);
849 P(numa_preferred_nid);
850 P(total_numa_faults);
851 SEQ_printf(m, "current_node=%d, numa_group_id=%d\n",
852 task_node(p), task_numa_group_id(p));
853 show_numa_stats(p, m);
858 void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
860 unsigned long nr_switches;
862 SEQ_printf(m, "%s (%d, #threads: %d)\n", p->comm, task_pid_nr(p),
865 "---------------------------------------------------------"
868 SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)F)
870 SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)p->F)
872 SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)F))
874 SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F))
878 PN(se.sum_exec_runtime);
880 nr_switches = p->nvcsw + p->nivcsw;
884 #ifdef CONFIG_SCHEDSTATS
885 if (schedstat_enabled()) {
886 u64 avg_atom, avg_per_cpu;
888 PN(se.statistics.sum_sleep_runtime);
889 PN(se.statistics.wait_start);
890 PN(se.statistics.sleep_start);
891 PN(se.statistics.block_start);
892 PN(se.statistics.sleep_max);
893 PN(se.statistics.block_max);
894 PN(se.statistics.exec_max);
895 PN(se.statistics.slice_max);
896 PN(se.statistics.wait_max);
897 PN(se.statistics.wait_sum);
898 P(se.statistics.wait_count);
899 PN(se.statistics.iowait_sum);
900 P(se.statistics.iowait_count);
901 P(se.statistics.nr_migrations_cold);
902 P(se.statistics.nr_failed_migrations_affine);
903 P(se.statistics.nr_failed_migrations_running);
904 P(se.statistics.nr_failed_migrations_hot);
905 P(se.statistics.nr_forced_migrations);
906 P(se.statistics.nr_wakeups);
907 P(se.statistics.nr_wakeups_sync);
908 P(se.statistics.nr_wakeups_migrate);
909 P(se.statistics.nr_wakeups_local);
910 P(se.statistics.nr_wakeups_remote);
911 P(se.statistics.nr_wakeups_affine);
912 P(se.statistics.nr_wakeups_affine_attempts);
913 P(se.statistics.nr_wakeups_passive);
914 P(se.statistics.nr_wakeups_idle);
916 avg_atom = p->se.sum_exec_runtime;
918 avg_atom = div64_ul(avg_atom, nr_switches);
922 avg_per_cpu = p->se.sum_exec_runtime;
923 if (p->se.nr_migrations) {
924 avg_per_cpu = div64_u64(avg_per_cpu,
925 p->se.nr_migrations);
935 SEQ_printf(m, "%-45s:%21Ld\n",
936 "nr_voluntary_switches", (long long)p->nvcsw);
937 SEQ_printf(m, "%-45s:%21Ld\n",
938 "nr_involuntary_switches", (long long)p->nivcsw);
946 P(se.avg.last_update_time);
956 unsigned int this_cpu = raw_smp_processor_id();
959 t0 = cpu_clock(this_cpu);
960 t1 = cpu_clock(this_cpu);
961 SEQ_printf(m, "%-45s:%21Ld\n",
962 "clock-delta", (long long)(t1-t0));
965 sched_show_numa(p, m);
968 void proc_sched_set_task(struct task_struct *p)
970 #ifdef CONFIG_SCHEDSTATS
971 memset(&p->se.statistics, 0, sizeof(p->se.statistics));