1 // SPDX-License-Identifier: GPL-2.0-only
5 * Print the CFS rbtree and other debugging details
7 * Copyright(C) 2007, Red Hat, Inc., Ingo Molnar
11 static DEFINE_SPINLOCK(sched_debug_lock);
14 * This allows printing both to /proc/sched_debug and
17 #define SEQ_printf(m, x...) \
26 * Ease the printing of nsec fields:
28 static long long nsec_high(unsigned long long nsec)
30 if ((long long)nsec < 0) {
32 do_div(nsec, 1000000);
35 do_div(nsec, 1000000);
40 static unsigned long nsec_low(unsigned long long nsec)
42 if ((long long)nsec < 0)
45 return do_div(nsec, 1000000);
48 #define SPLIT_NS(x) nsec_high(x), nsec_low(x)
50 #define SCHED_FEAT(name, enabled) \
53 static const char * const sched_feat_names[] = {
59 static int sched_feat_show(struct seq_file *m, void *v)
63 for (i = 0; i < __SCHED_FEAT_NR; i++) {
64 if (!(sysctl_sched_features & (1UL << i)))
66 seq_printf(m, "%s ", sched_feat_names[i]);
73 #ifdef CONFIG_JUMP_LABEL
75 #define jump_label_key__true STATIC_KEY_INIT_TRUE
76 #define jump_label_key__false STATIC_KEY_INIT_FALSE
78 #define SCHED_FEAT(name, enabled) \
79 jump_label_key__##enabled ,
81 struct static_key sched_feat_keys[__SCHED_FEAT_NR] = {
87 static void sched_feat_disable(int i)
89 static_key_disable_cpuslocked(&sched_feat_keys[i]);
92 static void sched_feat_enable(int i)
94 static_key_enable_cpuslocked(&sched_feat_keys[i]);
97 static void sched_feat_disable(int i) { };
98 static void sched_feat_enable(int i) { };
99 #endif /* CONFIG_JUMP_LABEL */
101 static int sched_feat_set(char *cmp)
106 if (strncmp(cmp, "NO_", 3) == 0) {
111 i = match_string(sched_feat_names, __SCHED_FEAT_NR, cmp);
116 sysctl_sched_features &= ~(1UL << i);
117 sched_feat_disable(i);
119 sysctl_sched_features |= (1UL << i);
120 sched_feat_enable(i);
127 sched_feat_write(struct file *filp, const char __user *ubuf,
128 size_t cnt, loff_t *ppos)
138 if (copy_from_user(&buf, ubuf, cnt))
144 /* Ensure the static_key remains in a consistent state */
145 inode = file_inode(filp);
148 ret = sched_feat_set(cmp);
159 static int sched_feat_open(struct inode *inode, struct file *filp)
161 return single_open(filp, sched_feat_show, NULL);
164 static const struct file_operations sched_feat_fops = {
165 .open = sched_feat_open,
166 .write = sched_feat_write,
169 .release = single_release,
172 __read_mostly bool sched_debug_enabled;
174 static __init int sched_init_debug(void)
176 debugfs_create_file("sched_features", 0644, NULL, NULL,
179 debugfs_create_bool("sched_debug", 0644, NULL,
180 &sched_debug_enabled);
184 late_initcall(sched_init_debug);
190 static struct ctl_table sd_ctl_dir[] = {
192 .procname = "sched_domain",
198 static struct ctl_table sd_ctl_root[] = {
200 .procname = "kernel",
207 static struct ctl_table *sd_alloc_ctl_entry(int n)
209 struct ctl_table *entry =
210 kcalloc(n, sizeof(struct ctl_table), GFP_KERNEL);
215 static void sd_free_ctl_entry(struct ctl_table **tablep)
217 struct ctl_table *entry;
220 * In the intermediate directories, both the child directory and
221 * procname are dynamically allocated and could fail but the mode
222 * will always be set. In the lowest directory the names are
223 * static strings and all have proc handlers.
225 for (entry = *tablep; entry->mode; entry++) {
227 sd_free_ctl_entry(&entry->child);
228 if (entry->proc_handler == NULL)
229 kfree(entry->procname);
237 set_table_entry(struct ctl_table *entry,
238 const char *procname, void *data, int maxlen,
239 umode_t mode, proc_handler *proc_handler)
241 entry->procname = procname;
243 entry->maxlen = maxlen;
245 entry->proc_handler = proc_handler;
248 static int sd_ctl_doflags(struct ctl_table *table, int write,
249 void *buffer, size_t *lenp, loff_t *ppos)
251 unsigned long flags = *(unsigned long *)table->data;
252 size_t data_size = 0;
260 for_each_set_bit(idx, &flags, __SD_FLAG_CNT) {
261 char *name = sd_flag_debug[idx].name;
263 /* Name plus whitespace */
264 data_size += strlen(name) + 1;
267 if (*ppos > data_size) {
272 tmp = kcalloc(data_size + 1, sizeof(*tmp), GFP_KERNEL);
276 for_each_set_bit(idx, &flags, __SD_FLAG_CNT) {
277 char *name = sd_flag_debug[idx].name;
279 len += snprintf(tmp + len, strlen(name) + 2, "%s ", name);
288 memcpy(buffer, tmp, len);
290 ((char *)buffer)[len] = '\n';
302 static struct ctl_table *
303 sd_alloc_ctl_domain_table(struct sched_domain *sd)
305 struct ctl_table *table = sd_alloc_ctl_entry(9);
310 set_table_entry(&table[0], "min_interval", &sd->min_interval, sizeof(long), 0644, proc_doulongvec_minmax);
311 set_table_entry(&table[1], "max_interval", &sd->max_interval, sizeof(long), 0644, proc_doulongvec_minmax);
312 set_table_entry(&table[2], "busy_factor", &sd->busy_factor, sizeof(int), 0644, proc_dointvec_minmax);
313 set_table_entry(&table[3], "imbalance_pct", &sd->imbalance_pct, sizeof(int), 0644, proc_dointvec_minmax);
314 set_table_entry(&table[4], "cache_nice_tries", &sd->cache_nice_tries, sizeof(int), 0644, proc_dointvec_minmax);
315 set_table_entry(&table[5], "flags", &sd->flags, sizeof(int), 0444, sd_ctl_doflags);
316 set_table_entry(&table[6], "max_newidle_lb_cost", &sd->max_newidle_lb_cost, sizeof(long), 0644, proc_doulongvec_minmax);
317 set_table_entry(&table[7], "name", sd->name, CORENAME_MAX_SIZE, 0444, proc_dostring);
318 /* &table[8] is terminator */
323 static struct ctl_table *sd_alloc_ctl_cpu_table(int cpu)
325 struct ctl_table *entry, *table;
326 struct sched_domain *sd;
327 int domain_num = 0, i;
330 for_each_domain(cpu, sd)
332 entry = table = sd_alloc_ctl_entry(domain_num + 1);
337 for_each_domain(cpu, sd) {
338 snprintf(buf, 32, "domain%d", i);
339 entry->procname = kstrdup(buf, GFP_KERNEL);
341 entry->child = sd_alloc_ctl_domain_table(sd);
348 static cpumask_var_t sd_sysctl_cpus;
349 static struct ctl_table_header *sd_sysctl_header;
351 void register_sched_domain_sysctl(void)
353 static struct ctl_table *cpu_entries;
354 static struct ctl_table **cpu_idx;
355 static bool init_done = false;
360 cpu_entries = sd_alloc_ctl_entry(num_possible_cpus() + 1);
364 WARN_ON(sd_ctl_dir[0].child);
365 sd_ctl_dir[0].child = cpu_entries;
369 struct ctl_table *e = cpu_entries;
371 cpu_idx = kcalloc(nr_cpu_ids, sizeof(struct ctl_table*), GFP_KERNEL);
375 /* deal with sparse possible map */
376 for_each_possible_cpu(i) {
382 if (!cpumask_available(sd_sysctl_cpus)) {
383 if (!alloc_cpumask_var(&sd_sysctl_cpus, GFP_KERNEL))
389 /* init to possible to not have holes in @cpu_entries */
390 cpumask_copy(sd_sysctl_cpus, cpu_possible_mask);
393 for_each_cpu(i, sd_sysctl_cpus) {
394 struct ctl_table *e = cpu_idx[i];
397 sd_free_ctl_entry(&e->child);
400 snprintf(buf, 32, "cpu%d", i);
401 e->procname = kstrdup(buf, GFP_KERNEL);
404 e->child = sd_alloc_ctl_cpu_table(i);
406 __cpumask_clear_cpu(i, sd_sysctl_cpus);
409 WARN_ON(sd_sysctl_header);
410 sd_sysctl_header = register_sysctl_table(sd_ctl_root);
413 void dirty_sched_domain_sysctl(int cpu)
415 if (cpumask_available(sd_sysctl_cpus))
416 __cpumask_set_cpu(cpu, sd_sysctl_cpus);
419 /* may be called multiple times per register */
420 void unregister_sched_domain_sysctl(void)
422 unregister_sysctl_table(sd_sysctl_header);
423 sd_sysctl_header = NULL;
425 #endif /* CONFIG_SYSCTL */
426 #endif /* CONFIG_SMP */
428 #ifdef CONFIG_FAIR_GROUP_SCHED
429 static void print_cfs_group_stats(struct seq_file *m, int cpu, struct task_group *tg)
431 struct sched_entity *se = tg->se[cpu];
433 #define P(F) SEQ_printf(m, " .%-30s: %lld\n", #F, (long long)F)
434 #define P_SCHEDSTAT(F) SEQ_printf(m, " .%-30s: %lld\n", #F, (long long)schedstat_val(F))
435 #define PN(F) SEQ_printf(m, " .%-30s: %lld.%06ld\n", #F, SPLIT_NS((long long)F))
436 #define PN_SCHEDSTAT(F) SEQ_printf(m, " .%-30s: %lld.%06ld\n", #F, SPLIT_NS((long long)schedstat_val(F)))
443 PN(se->sum_exec_runtime);
445 if (schedstat_enabled()) {
446 PN_SCHEDSTAT(se->statistics.wait_start);
447 PN_SCHEDSTAT(se->statistics.sleep_start);
448 PN_SCHEDSTAT(se->statistics.block_start);
449 PN_SCHEDSTAT(se->statistics.sleep_max);
450 PN_SCHEDSTAT(se->statistics.block_max);
451 PN_SCHEDSTAT(se->statistics.exec_max);
452 PN_SCHEDSTAT(se->statistics.slice_max);
453 PN_SCHEDSTAT(se->statistics.wait_max);
454 PN_SCHEDSTAT(se->statistics.wait_sum);
455 P_SCHEDSTAT(se->statistics.wait_count);
462 P(se->avg.runnable_avg);
472 #ifdef CONFIG_CGROUP_SCHED
473 static char group_path[PATH_MAX];
475 static char *task_group_path(struct task_group *tg)
477 if (autogroup_path(tg, group_path, PATH_MAX))
480 cgroup_path(tg->css.cgroup, group_path, PATH_MAX);
487 print_task(struct seq_file *m, struct rq *rq, struct task_struct *p)
492 SEQ_printf(m, " %c", task_state_to_char(p));
494 SEQ_printf(m, " %15s %5d %9Ld.%06ld %9Ld %5d ",
495 p->comm, task_pid_nr(p),
496 SPLIT_NS(p->se.vruntime),
497 (long long)(p->nvcsw + p->nivcsw),
500 SEQ_printf(m, "%9Ld.%06ld %9Ld.%06ld %9Ld.%06ld",
501 SPLIT_NS(schedstat_val_or_zero(p->se.statistics.wait_sum)),
502 SPLIT_NS(p->se.sum_exec_runtime),
503 SPLIT_NS(schedstat_val_or_zero(p->se.statistics.sum_sleep_runtime)));
505 #ifdef CONFIG_NUMA_BALANCING
506 SEQ_printf(m, " %d %d", task_node(p), task_numa_group_id(p));
508 #ifdef CONFIG_CGROUP_SCHED
509 SEQ_printf(m, " %s", task_group_path(task_group(p)));
515 static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu)
517 struct task_struct *g, *p;
520 SEQ_printf(m, "runnable tasks:\n");
521 SEQ_printf(m, " S task PID tree-key switches prio"
522 " wait-time sum-exec sum-sleep\n");
523 SEQ_printf(m, "-------------------------------------------------------"
524 "------------------------------------------------------\n");
527 for_each_process_thread(g, p) {
528 if (task_cpu(p) != rq_cpu)
531 print_task(m, rq, p);
536 void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
538 s64 MIN_vruntime = -1, min_vruntime, max_vruntime = -1,
539 spread, rq0_min_vruntime, spread0;
540 struct rq *rq = cpu_rq(cpu);
541 struct sched_entity *last;
544 #ifdef CONFIG_FAIR_GROUP_SCHED
546 SEQ_printf(m, "cfs_rq[%d]:%s\n", cpu, task_group_path(cfs_rq->tg));
549 SEQ_printf(m, "cfs_rq[%d]:\n", cpu);
551 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "exec_clock",
552 SPLIT_NS(cfs_rq->exec_clock));
554 raw_spin_lock_irqsave(&rq->lock, flags);
555 if (rb_first_cached(&cfs_rq->tasks_timeline))
556 MIN_vruntime = (__pick_first_entity(cfs_rq))->vruntime;
557 last = __pick_last_entity(cfs_rq);
559 max_vruntime = last->vruntime;
560 min_vruntime = cfs_rq->min_vruntime;
561 rq0_min_vruntime = cpu_rq(0)->cfs.min_vruntime;
562 raw_spin_unlock_irqrestore(&rq->lock, flags);
563 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "MIN_vruntime",
564 SPLIT_NS(MIN_vruntime));
565 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "min_vruntime",
566 SPLIT_NS(min_vruntime));
567 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "max_vruntime",
568 SPLIT_NS(max_vruntime));
569 spread = max_vruntime - MIN_vruntime;
570 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "spread",
572 spread0 = min_vruntime - rq0_min_vruntime;
573 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "spread0",
575 SEQ_printf(m, " .%-30s: %d\n", "nr_spread_over",
576 cfs_rq->nr_spread_over);
577 SEQ_printf(m, " .%-30s: %d\n", "nr_running", cfs_rq->nr_running);
578 SEQ_printf(m, " .%-30s: %ld\n", "load", cfs_rq->load.weight);
580 SEQ_printf(m, " .%-30s: %lu\n", "load_avg",
581 cfs_rq->avg.load_avg);
582 SEQ_printf(m, " .%-30s: %lu\n", "runnable_avg",
583 cfs_rq->avg.runnable_avg);
584 SEQ_printf(m, " .%-30s: %lu\n", "util_avg",
585 cfs_rq->avg.util_avg);
586 SEQ_printf(m, " .%-30s: %u\n", "util_est_enqueued",
587 cfs_rq->avg.util_est.enqueued);
588 SEQ_printf(m, " .%-30s: %ld\n", "removed.load_avg",
589 cfs_rq->removed.load_avg);
590 SEQ_printf(m, " .%-30s: %ld\n", "removed.util_avg",
591 cfs_rq->removed.util_avg);
592 SEQ_printf(m, " .%-30s: %ld\n", "removed.runnable_avg",
593 cfs_rq->removed.runnable_avg);
594 #ifdef CONFIG_FAIR_GROUP_SCHED
595 SEQ_printf(m, " .%-30s: %lu\n", "tg_load_avg_contrib",
596 cfs_rq->tg_load_avg_contrib);
597 SEQ_printf(m, " .%-30s: %ld\n", "tg_load_avg",
598 atomic_long_read(&cfs_rq->tg->load_avg));
601 #ifdef CONFIG_CFS_BANDWIDTH
602 SEQ_printf(m, " .%-30s: %d\n", "throttled",
604 SEQ_printf(m, " .%-30s: %d\n", "throttle_count",
605 cfs_rq->throttle_count);
608 #ifdef CONFIG_FAIR_GROUP_SCHED
609 print_cfs_group_stats(m, cpu, cfs_rq->tg);
613 void print_rt_rq(struct seq_file *m, int cpu, struct rt_rq *rt_rq)
615 #ifdef CONFIG_RT_GROUP_SCHED
617 SEQ_printf(m, "rt_rq[%d]:%s\n", cpu, task_group_path(rt_rq->tg));
620 SEQ_printf(m, "rt_rq[%d]:\n", cpu);
624 SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rt_rq->x))
626 SEQ_printf(m, " .%-30s: %lu\n", #x, (unsigned long)(rt_rq->x))
628 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rt_rq->x))
643 void print_dl_rq(struct seq_file *m, int cpu, struct dl_rq *dl_rq)
648 SEQ_printf(m, "dl_rq[%d]:\n", cpu);
651 SEQ_printf(m, " .%-30s: %lu\n", #x, (unsigned long)(dl_rq->x))
656 dl_bw = &cpu_rq(cpu)->rd->dl_bw;
658 dl_bw = &dl_rq->dl_bw;
660 SEQ_printf(m, " .%-30s: %lld\n", "dl_bw->bw", dl_bw->bw);
661 SEQ_printf(m, " .%-30s: %lld\n", "dl_bw->total_bw", dl_bw->total_bw);
666 static void print_cpu(struct seq_file *m, int cpu)
668 struct rq *rq = cpu_rq(cpu);
673 unsigned int freq = cpu_khz ? : 1;
675 SEQ_printf(m, "cpu#%d, %u.%03u MHz\n",
676 cpu, freq / 1000, (freq % 1000));
679 SEQ_printf(m, "cpu#%d\n", cpu);
684 if (sizeof(rq->x) == 4) \
685 SEQ_printf(m, " .%-30s: %ld\n", #x, (long)(rq->x)); \
687 SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rq->x));\
691 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rq->x))
695 P(nr_uninterruptible);
697 SEQ_printf(m, " .%-30s: %ld\n", "curr->pid", (long)(task_pid_nr(rq->curr)));
704 #define P64(n) SEQ_printf(m, " .%-30s: %Ld\n", #n, rq->n);
706 P64(max_idle_balance_cost);
710 #define P(n) SEQ_printf(m, " .%-30s: %d\n", #n, schedstat_val(rq->n));
711 if (schedstat_enabled()) {
720 spin_lock_irqsave(&sched_debug_lock, flags);
721 print_cfs_stats(m, cpu);
722 print_rt_stats(m, cpu);
723 print_dl_stats(m, cpu);
725 print_rq(m, rq, cpu);
726 spin_unlock_irqrestore(&sched_debug_lock, flags);
730 static const char *sched_tunable_scaling_names[] = {
736 static void sched_debug_header(struct seq_file *m)
738 u64 ktime, sched_clk, cpu_clk;
741 local_irq_save(flags);
742 ktime = ktime_to_ns(ktime_get());
743 sched_clk = sched_clock();
744 cpu_clk = local_clock();
745 local_irq_restore(flags);
747 SEQ_printf(m, "Sched Debug Version: v0.11, %s %.*s\n",
748 init_utsname()->release,
749 (int)strcspn(init_utsname()->version, " "),
750 init_utsname()->version);
753 SEQ_printf(m, "%-40s: %Ld\n", #x, (long long)(x))
755 SEQ_printf(m, "%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x))
760 #ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
761 P(sched_clock_stable());
767 SEQ_printf(m, "sysctl_sched\n");
770 SEQ_printf(m, " .%-40s: %Ld\n", #x, (long long)(x))
772 SEQ_printf(m, " .%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x))
773 PN(sysctl_sched_latency);
774 PN(sysctl_sched_min_granularity);
775 PN(sysctl_sched_wakeup_granularity);
776 P(sysctl_sched_child_runs_first);
777 P(sysctl_sched_features);
781 SEQ_printf(m, " .%-40s: %d (%s)\n",
782 "sysctl_sched_tunable_scaling",
783 sysctl_sched_tunable_scaling,
784 sched_tunable_scaling_names[sysctl_sched_tunable_scaling]);
788 static int sched_debug_show(struct seq_file *m, void *v)
790 int cpu = (unsigned long)(v - 2);
795 sched_debug_header(m);
800 void sysrq_sched_debug_show(void)
804 sched_debug_header(NULL);
805 for_each_online_cpu(cpu) {
807 * Need to reset softlockup watchdogs on all CPUs, because
808 * another CPU might be blocked waiting for us to process
809 * an IPI or stop_machine.
811 touch_nmi_watchdog();
812 touch_all_softlockup_watchdogs();
813 print_cpu(NULL, cpu);
818 * This itererator needs some explanation.
819 * It returns 1 for the header position.
820 * This means 2 is CPU 0.
821 * In a hotplugged system some CPUs, including CPU 0, may be missing so we have
822 * to use cpumask_* to iterate over the CPUs.
824 static void *sched_debug_start(struct seq_file *file, loff_t *offset)
826 unsigned long n = *offset;
834 n = cpumask_next(n - 1, cpu_online_mask);
836 n = cpumask_first(cpu_online_mask);
841 return (void *)(unsigned long)(n + 2);
846 static void *sched_debug_next(struct seq_file *file, void *data, loff_t *offset)
849 return sched_debug_start(file, offset);
852 static void sched_debug_stop(struct seq_file *file, void *data)
856 static const struct seq_operations sched_debug_sops = {
857 .start = sched_debug_start,
858 .next = sched_debug_next,
859 .stop = sched_debug_stop,
860 .show = sched_debug_show,
863 static int __init init_sched_debug_procfs(void)
865 if (!proc_create_seq("sched_debug", 0444, NULL, &sched_debug_sops))
870 __initcall(init_sched_debug_procfs);
872 #define __PS(S, F) SEQ_printf(m, "%-45s:%21Ld\n", S, (long long)(F))
873 #define __P(F) __PS(#F, F)
874 #define P(F) __PS(#F, p->F)
875 #define __PSN(S, F) SEQ_printf(m, "%-45s:%14Ld.%06ld\n", S, SPLIT_NS((long long)(F)))
876 #define __PN(F) __PSN(#F, F)
877 #define PN(F) __PSN(#F, p->F)
880 #ifdef CONFIG_NUMA_BALANCING
881 void print_numa_stats(struct seq_file *m, int node, unsigned long tsf,
882 unsigned long tpf, unsigned long gsf, unsigned long gpf)
884 SEQ_printf(m, "numa_faults node=%d ", node);
885 SEQ_printf(m, "task_private=%lu task_shared=%lu ", tpf, tsf);
886 SEQ_printf(m, "group_private=%lu group_shared=%lu\n", gpf, gsf);
891 static void sched_show_numa(struct task_struct *p, struct seq_file *m)
893 #ifdef CONFIG_NUMA_BALANCING
894 struct mempolicy *pol;
897 P(mm->numa_scan_seq);
901 if (pol && !(pol->flags & MPOL_F_MORON))
906 P(numa_pages_migrated);
907 P(numa_preferred_nid);
908 P(total_numa_faults);
909 SEQ_printf(m, "current_node=%d, numa_group_id=%d\n",
910 task_node(p), task_numa_group_id(p));
911 show_numa_stats(p, m);
916 void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns,
919 unsigned long nr_switches;
921 SEQ_printf(m, "%s (%d, #threads: %d)\n", p->comm, task_pid_nr_ns(p, ns),
924 "---------------------------------------------------------"
927 #define P_SCHEDSTAT(F) __PS(#F, schedstat_val(p->F))
928 #define PN_SCHEDSTAT(F) __PSN(#F, schedstat_val(p->F))
932 PN(se.sum_exec_runtime);
934 nr_switches = p->nvcsw + p->nivcsw;
938 if (schedstat_enabled()) {
939 u64 avg_atom, avg_per_cpu;
941 PN_SCHEDSTAT(se.statistics.sum_sleep_runtime);
942 PN_SCHEDSTAT(se.statistics.wait_start);
943 PN_SCHEDSTAT(se.statistics.sleep_start);
944 PN_SCHEDSTAT(se.statistics.block_start);
945 PN_SCHEDSTAT(se.statistics.sleep_max);
946 PN_SCHEDSTAT(se.statistics.block_max);
947 PN_SCHEDSTAT(se.statistics.exec_max);
948 PN_SCHEDSTAT(se.statistics.slice_max);
949 PN_SCHEDSTAT(se.statistics.wait_max);
950 PN_SCHEDSTAT(se.statistics.wait_sum);
951 P_SCHEDSTAT(se.statistics.wait_count);
952 PN_SCHEDSTAT(se.statistics.iowait_sum);
953 P_SCHEDSTAT(se.statistics.iowait_count);
954 P_SCHEDSTAT(se.statistics.nr_migrations_cold);
955 P_SCHEDSTAT(se.statistics.nr_failed_migrations_affine);
956 P_SCHEDSTAT(se.statistics.nr_failed_migrations_running);
957 P_SCHEDSTAT(se.statistics.nr_failed_migrations_hot);
958 P_SCHEDSTAT(se.statistics.nr_forced_migrations);
959 P_SCHEDSTAT(se.statistics.nr_wakeups);
960 P_SCHEDSTAT(se.statistics.nr_wakeups_sync);
961 P_SCHEDSTAT(se.statistics.nr_wakeups_migrate);
962 P_SCHEDSTAT(se.statistics.nr_wakeups_local);
963 P_SCHEDSTAT(se.statistics.nr_wakeups_remote);
964 P_SCHEDSTAT(se.statistics.nr_wakeups_affine);
965 P_SCHEDSTAT(se.statistics.nr_wakeups_affine_attempts);
966 P_SCHEDSTAT(se.statistics.nr_wakeups_passive);
967 P_SCHEDSTAT(se.statistics.nr_wakeups_idle);
969 avg_atom = p->se.sum_exec_runtime;
971 avg_atom = div64_ul(avg_atom, nr_switches);
975 avg_per_cpu = p->se.sum_exec_runtime;
976 if (p->se.nr_migrations) {
977 avg_per_cpu = div64_u64(avg_per_cpu,
978 p->se.nr_migrations);
988 __PS("nr_voluntary_switches", p->nvcsw);
989 __PS("nr_involuntary_switches", p->nivcsw);
994 P(se.avg.runnable_sum);
997 P(se.avg.runnable_avg);
999 P(se.avg.last_update_time);
1000 P(se.avg.util_est.ewma);
1001 P(se.avg.util_est.enqueued);
1003 #ifdef CONFIG_UCLAMP_TASK
1004 __PS("uclamp.min", p->uclamp_req[UCLAMP_MIN].value);
1005 __PS("uclamp.max", p->uclamp_req[UCLAMP_MAX].value);
1006 __PS("effective uclamp.min", uclamp_eff_value(p, UCLAMP_MIN));
1007 __PS("effective uclamp.max", uclamp_eff_value(p, UCLAMP_MAX));
1011 if (task_has_dl_policy(p)) {
1019 unsigned int this_cpu = raw_smp_processor_id();
1022 t0 = cpu_clock(this_cpu);
1023 t1 = cpu_clock(this_cpu);
1024 __PS("clock-delta", t1-t0);
1027 sched_show_numa(p, m);
1030 void proc_sched_set_task(struct task_struct *p)
1032 #ifdef CONFIG_SCHEDSTATS
1033 memset(&p->se.statistics, 0, sizeof(p->se.statistics));