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Commit | Line | Data |
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43ae34cb | 1 | /* |
391e43da | 2 | * kernel/sched/debug.c |
43ae34cb IM |
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> | |
589ee628 | 14 | #include <linux/sched/mm.h> |
f719ff9b | 15 | #include <linux/sched/task.h> |
43ae34cb IM |
16 | #include <linux/seq_file.h> |
17 | #include <linux/kallsyms.h> | |
18 | #include <linux/utsname.h> | |
b32e86b4 | 19 | #include <linux/mempolicy.h> |
d6ca41d7 | 20 | #include <linux/debugfs.h> |
43ae34cb | 21 | |
029632fb PZ |
22 | #include "sched.h" |
23 | ||
efe25c2c BR |
24 | static DEFINE_SPINLOCK(sched_debug_lock); |
25 | ||
43ae34cb IM |
26 | /* |
27 | * This allows printing both to /proc/sched_debug and | |
28 | * to the console | |
29 | */ | |
30 | #define SEQ_printf(m, x...) \ | |
31 | do { \ | |
32 | if (m) \ | |
33 | seq_printf(m, x); \ | |
34 | else \ | |
35 | printk(x); \ | |
36 | } while (0) | |
37 | ||
ef83a571 IM |
38 | /* |
39 | * Ease the printing of nsec fields: | |
40 | */ | |
90b2628f | 41 | static long long nsec_high(unsigned long long nsec) |
ef83a571 | 42 | { |
90b2628f | 43 | if ((long long)nsec < 0) { |
ef83a571 IM |
44 | nsec = -nsec; |
45 | do_div(nsec, 1000000); | |
46 | return -nsec; | |
47 | } | |
48 | do_div(nsec, 1000000); | |
49 | ||
50 | return nsec; | |
51 | } | |
52 | ||
90b2628f | 53 | static unsigned long nsec_low(unsigned long long nsec) |
ef83a571 | 54 | { |
90b2628f | 55 | if ((long long)nsec < 0) |
ef83a571 IM |
56 | nsec = -nsec; |
57 | ||
58 | return do_div(nsec, 1000000); | |
59 | } | |
60 | ||
61 | #define SPLIT_NS(x) nsec_high(x), nsec_low(x) | |
62 | ||
d6ca41d7 SRRH |
63 | #define SCHED_FEAT(name, enabled) \ |
64 | #name , | |
65 | ||
66 | static const char * const sched_feat_names[] = { | |
67 | #include "features.h" | |
68 | }; | |
69 | ||
70 | #undef SCHED_FEAT | |
71 | ||
72 | static int sched_feat_show(struct seq_file *m, void *v) | |
73 | { | |
74 | int i; | |
75 | ||
76 | for (i = 0; i < __SCHED_FEAT_NR; i++) { | |
77 | if (!(sysctl_sched_features & (1UL << i))) | |
78 | seq_puts(m, "NO_"); | |
79 | seq_printf(m, "%s ", sched_feat_names[i]); | |
80 | } | |
81 | seq_puts(m, "\n"); | |
82 | ||
83 | return 0; | |
84 | } | |
85 | ||
86 | #ifdef HAVE_JUMP_LABEL | |
87 | ||
88 | #define jump_label_key__true STATIC_KEY_INIT_TRUE | |
89 | #define jump_label_key__false STATIC_KEY_INIT_FALSE | |
90 | ||
91 | #define SCHED_FEAT(name, enabled) \ | |
92 | jump_label_key__##enabled , | |
93 | ||
94 | struct static_key sched_feat_keys[__SCHED_FEAT_NR] = { | |
95 | #include "features.h" | |
96 | }; | |
97 | ||
98 | #undef SCHED_FEAT | |
99 | ||
100 | static void sched_feat_disable(int i) | |
101 | { | |
102 | static_key_disable(&sched_feat_keys[i]); | |
103 | } | |
104 | ||
105 | static void sched_feat_enable(int i) | |
106 | { | |
107 | static_key_enable(&sched_feat_keys[i]); | |
108 | } | |
109 | #else | |
110 | static void sched_feat_disable(int i) { }; | |
111 | static void sched_feat_enable(int i) { }; | |
112 | #endif /* HAVE_JUMP_LABEL */ | |
113 | ||
114 | static int sched_feat_set(char *cmp) | |
115 | { | |
116 | int i; | |
117 | int neg = 0; | |
118 | ||
119 | if (strncmp(cmp, "NO_", 3) == 0) { | |
120 | neg = 1; | |
121 | cmp += 3; | |
122 | } | |
123 | ||
124 | for (i = 0; i < __SCHED_FEAT_NR; i++) { | |
125 | if (strcmp(cmp, sched_feat_names[i]) == 0) { | |
126 | if (neg) { | |
127 | sysctl_sched_features &= ~(1UL << i); | |
128 | sched_feat_disable(i); | |
129 | } else { | |
130 | sysctl_sched_features |= (1UL << i); | |
131 | sched_feat_enable(i); | |
132 | } | |
133 | break; | |
134 | } | |
135 | } | |
136 | ||
137 | return i; | |
138 | } | |
139 | ||
140 | static ssize_t | |
141 | sched_feat_write(struct file *filp, const char __user *ubuf, | |
142 | size_t cnt, loff_t *ppos) | |
143 | { | |
144 | char buf[64]; | |
145 | char *cmp; | |
146 | int i; | |
147 | struct inode *inode; | |
148 | ||
149 | if (cnt > 63) | |
150 | cnt = 63; | |
151 | ||
152 | if (copy_from_user(&buf, ubuf, cnt)) | |
153 | return -EFAULT; | |
154 | ||
155 | buf[cnt] = 0; | |
156 | cmp = strstrip(buf); | |
157 | ||
158 | /* Ensure the static_key remains in a consistent state */ | |
159 | inode = file_inode(filp); | |
160 | inode_lock(inode); | |
161 | i = sched_feat_set(cmp); | |
162 | inode_unlock(inode); | |
163 | if (i == __SCHED_FEAT_NR) | |
164 | return -EINVAL; | |
165 | ||
166 | *ppos += cnt; | |
167 | ||
168 | return cnt; | |
169 | } | |
170 | ||
171 | static int sched_feat_open(struct inode *inode, struct file *filp) | |
172 | { | |
173 | return single_open(filp, sched_feat_show, NULL); | |
174 | } | |
175 | ||
176 | static const struct file_operations sched_feat_fops = { | |
177 | .open = sched_feat_open, | |
178 | .write = sched_feat_write, | |
179 | .read = seq_read, | |
180 | .llseek = seq_lseek, | |
181 | .release = single_release, | |
182 | }; | |
183 | ||
9469eb01 PZ |
184 | __read_mostly bool sched_debug_enabled; |
185 | ||
d6ca41d7 SRRH |
186 | static __init int sched_init_debug(void) |
187 | { | |
188 | debugfs_create_file("sched_features", 0644, NULL, NULL, | |
189 | &sched_feat_fops); | |
190 | ||
9469eb01 PZ |
191 | debugfs_create_bool("sched_debug", 0644, NULL, |
192 | &sched_debug_enabled); | |
193 | ||
d6ca41d7 SRRH |
194 | return 0; |
195 | } | |
196 | late_initcall(sched_init_debug); | |
197 | ||
3866e845 SRRH |
198 | #ifdef CONFIG_SMP |
199 | ||
200 | #ifdef CONFIG_SYSCTL | |
201 | ||
202 | static struct ctl_table sd_ctl_dir[] = { | |
203 | { | |
204 | .procname = "sched_domain", | |
205 | .mode = 0555, | |
206 | }, | |
207 | {} | |
208 | }; | |
209 | ||
210 | static struct ctl_table sd_ctl_root[] = { | |
211 | { | |
212 | .procname = "kernel", | |
213 | .mode = 0555, | |
214 | .child = sd_ctl_dir, | |
215 | }, | |
216 | {} | |
217 | }; | |
218 | ||
219 | static struct ctl_table *sd_alloc_ctl_entry(int n) | |
220 | { | |
221 | struct ctl_table *entry = | |
222 | kcalloc(n, sizeof(struct ctl_table), GFP_KERNEL); | |
223 | ||
224 | return entry; | |
225 | } | |
226 | ||
227 | static void sd_free_ctl_entry(struct ctl_table **tablep) | |
228 | { | |
229 | struct ctl_table *entry; | |
230 | ||
231 | /* | |
232 | * In the intermediate directories, both the child directory and | |
233 | * procname are dynamically allocated and could fail but the mode | |
234 | * will always be set. In the lowest directory the names are | |
235 | * static strings and all have proc handlers. | |
236 | */ | |
237 | for (entry = *tablep; entry->mode; entry++) { | |
238 | if (entry->child) | |
239 | sd_free_ctl_entry(&entry->child); | |
240 | if (entry->proc_handler == NULL) | |
241 | kfree(entry->procname); | |
242 | } | |
243 | ||
244 | kfree(*tablep); | |
245 | *tablep = NULL; | |
246 | } | |
247 | ||
248 | static int min_load_idx = 0; | |
249 | static int max_load_idx = CPU_LOAD_IDX_MAX-1; | |
250 | ||
251 | static void | |
252 | set_table_entry(struct ctl_table *entry, | |
253 | const char *procname, void *data, int maxlen, | |
254 | umode_t mode, proc_handler *proc_handler, | |
255 | bool load_idx) | |
256 | { | |
257 | entry->procname = procname; | |
258 | entry->data = data; | |
259 | entry->maxlen = maxlen; | |
260 | entry->mode = mode; | |
261 | entry->proc_handler = proc_handler; | |
262 | ||
263 | if (load_idx) { | |
264 | entry->extra1 = &min_load_idx; | |
265 | entry->extra2 = &max_load_idx; | |
266 | } | |
267 | } | |
268 | ||
269 | static struct ctl_table * | |
270 | sd_alloc_ctl_domain_table(struct sched_domain *sd) | |
271 | { | |
272 | struct ctl_table *table = sd_alloc_ctl_entry(14); | |
273 | ||
274 | if (table == NULL) | |
275 | return NULL; | |
276 | ||
277 | set_table_entry(&table[0], "min_interval", &sd->min_interval, | |
278 | sizeof(long), 0644, proc_doulongvec_minmax, false); | |
279 | set_table_entry(&table[1], "max_interval", &sd->max_interval, | |
280 | sizeof(long), 0644, proc_doulongvec_minmax, false); | |
281 | set_table_entry(&table[2], "busy_idx", &sd->busy_idx, | |
282 | sizeof(int), 0644, proc_dointvec_minmax, true); | |
283 | set_table_entry(&table[3], "idle_idx", &sd->idle_idx, | |
284 | sizeof(int), 0644, proc_dointvec_minmax, true); | |
285 | set_table_entry(&table[4], "newidle_idx", &sd->newidle_idx, | |
286 | sizeof(int), 0644, proc_dointvec_minmax, true); | |
287 | set_table_entry(&table[5], "wake_idx", &sd->wake_idx, | |
288 | sizeof(int), 0644, proc_dointvec_minmax, true); | |
289 | set_table_entry(&table[6], "forkexec_idx", &sd->forkexec_idx, | |
290 | sizeof(int), 0644, proc_dointvec_minmax, true); | |
291 | set_table_entry(&table[7], "busy_factor", &sd->busy_factor, | |
292 | sizeof(int), 0644, proc_dointvec_minmax, false); | |
293 | set_table_entry(&table[8], "imbalance_pct", &sd->imbalance_pct, | |
294 | sizeof(int), 0644, proc_dointvec_minmax, false); | |
295 | set_table_entry(&table[9], "cache_nice_tries", | |
296 | &sd->cache_nice_tries, | |
297 | sizeof(int), 0644, proc_dointvec_minmax, false); | |
298 | set_table_entry(&table[10], "flags", &sd->flags, | |
299 | sizeof(int), 0644, proc_dointvec_minmax, false); | |
300 | set_table_entry(&table[11], "max_newidle_lb_cost", | |
301 | &sd->max_newidle_lb_cost, | |
302 | sizeof(long), 0644, proc_doulongvec_minmax, false); | |
303 | set_table_entry(&table[12], "name", sd->name, | |
304 | CORENAME_MAX_SIZE, 0444, proc_dostring, false); | |
305 | /* &table[13] is terminator */ | |
306 | ||
307 | return table; | |
308 | } | |
309 | ||
310 | static struct ctl_table *sd_alloc_ctl_cpu_table(int cpu) | |
311 | { | |
312 | struct ctl_table *entry, *table; | |
313 | struct sched_domain *sd; | |
314 | int domain_num = 0, i; | |
315 | char buf[32]; | |
316 | ||
317 | for_each_domain(cpu, sd) | |
318 | domain_num++; | |
319 | entry = table = sd_alloc_ctl_entry(domain_num + 1); | |
320 | if (table == NULL) | |
321 | return NULL; | |
322 | ||
323 | i = 0; | |
324 | for_each_domain(cpu, sd) { | |
325 | snprintf(buf, 32, "domain%d", i); | |
326 | entry->procname = kstrdup(buf, GFP_KERNEL); | |
327 | entry->mode = 0555; | |
328 | entry->child = sd_alloc_ctl_domain_table(sd); | |
329 | entry++; | |
330 | i++; | |
331 | } | |
332 | return table; | |
333 | } | |
334 | ||
bbdacdfe | 335 | static cpumask_var_t sd_sysctl_cpus; |
3866e845 | 336 | static struct ctl_table_header *sd_sysctl_header; |
bbdacdfe | 337 | |
3866e845 SRRH |
338 | void register_sched_domain_sysctl(void) |
339 | { | |
bbdacdfe PZ |
340 | static struct ctl_table *cpu_entries; |
341 | static struct ctl_table **cpu_idx; | |
351ea69c | 342 | static bool init_done = false; |
3866e845 | 343 | char buf[32]; |
bbdacdfe | 344 | int i; |
3866e845 | 345 | |
bbdacdfe PZ |
346 | if (!cpu_entries) { |
347 | cpu_entries = sd_alloc_ctl_entry(num_possible_cpus() + 1); | |
348 | if (!cpu_entries) | |
349 | return; | |
3866e845 | 350 | |
bbdacdfe PZ |
351 | WARN_ON(sd_ctl_dir[0].child); |
352 | sd_ctl_dir[0].child = cpu_entries; | |
353 | } | |
3866e845 | 354 | |
bbdacdfe PZ |
355 | if (!cpu_idx) { |
356 | struct ctl_table *e = cpu_entries; | |
357 | ||
358 | cpu_idx = kcalloc(nr_cpu_ids, sizeof(struct ctl_table*), GFP_KERNEL); | |
359 | if (!cpu_idx) | |
360 | return; | |
361 | ||
362 | /* deal with sparse possible map */ | |
363 | for_each_possible_cpu(i) { | |
364 | cpu_idx[i] = e; | |
365 | e++; | |
366 | } | |
367 | } | |
368 | ||
369 | if (!cpumask_available(sd_sysctl_cpus)) { | |
370 | if (!alloc_cpumask_var(&sd_sysctl_cpus, GFP_KERNEL)) | |
371 | return; | |
351ea69c | 372 | } |
bbdacdfe | 373 | |
351ea69c HS |
374 | if (!init_done) { |
375 | init_done = true; | |
bbdacdfe PZ |
376 | /* init to possible to not have holes in @cpu_entries */ |
377 | cpumask_copy(sd_sysctl_cpus, cpu_possible_mask); | |
378 | } | |
379 | ||
380 | for_each_cpu(i, sd_sysctl_cpus) { | |
381 | struct ctl_table *e = cpu_idx[i]; | |
382 | ||
383 | if (e->child) | |
384 | sd_free_ctl_entry(&e->child); | |
385 | ||
386 | if (!e->procname) { | |
387 | snprintf(buf, 32, "cpu%d", i); | |
388 | e->procname = kstrdup(buf, GFP_KERNEL); | |
389 | } | |
390 | e->mode = 0555; | |
391 | e->child = sd_alloc_ctl_cpu_table(i); | |
392 | ||
393 | __cpumask_clear_cpu(i, sd_sysctl_cpus); | |
3866e845 SRRH |
394 | } |
395 | ||
396 | WARN_ON(sd_sysctl_header); | |
397 | sd_sysctl_header = register_sysctl_table(sd_ctl_root); | |
398 | } | |
399 | ||
bbdacdfe PZ |
400 | void dirty_sched_domain_sysctl(int cpu) |
401 | { | |
402 | if (cpumask_available(sd_sysctl_cpus)) | |
403 | __cpumask_set_cpu(cpu, sd_sysctl_cpus); | |
404 | } | |
405 | ||
3866e845 SRRH |
406 | /* may be called multiple times per register */ |
407 | void unregister_sched_domain_sysctl(void) | |
408 | { | |
409 | unregister_sysctl_table(sd_sysctl_header); | |
410 | sd_sysctl_header = NULL; | |
3866e845 SRRH |
411 | } |
412 | #endif /* CONFIG_SYSCTL */ | |
413 | #endif /* CONFIG_SMP */ | |
414 | ||
ff9b48c3 | 415 | #ifdef CONFIG_FAIR_GROUP_SCHED |
5091faa4 | 416 | static void print_cfs_group_stats(struct seq_file *m, int cpu, struct task_group *tg) |
ff9b48c3 BR |
417 | { |
418 | struct sched_entity *se = tg->se[cpu]; | |
ff9b48c3 BR |
419 | |
420 | #define P(F) \ | |
421 | SEQ_printf(m, " .%-30s: %lld\n", #F, (long long)F) | |
4fa8d299 JP |
422 | #define P_SCHEDSTAT(F) \ |
423 | SEQ_printf(m, " .%-30s: %lld\n", #F, (long long)schedstat_val(F)) | |
ff9b48c3 BR |
424 | #define PN(F) \ |
425 | SEQ_printf(m, " .%-30s: %lld.%06ld\n", #F, SPLIT_NS((long long)F)) | |
4fa8d299 JP |
426 | #define PN_SCHEDSTAT(F) \ |
427 | SEQ_printf(m, " .%-30s: %lld.%06ld\n", #F, SPLIT_NS((long long)schedstat_val(F))) | |
ff9b48c3 | 428 | |
cd126afe | 429 | if (!se) |
18bf2805 | 430 | return; |
18bf2805 | 431 | |
ff9b48c3 BR |
432 | PN(se->exec_start); |
433 | PN(se->vruntime); | |
434 | PN(se->sum_exec_runtime); | |
cb251765 | 435 | if (schedstat_enabled()) { |
4fa8d299 JP |
436 | PN_SCHEDSTAT(se->statistics.wait_start); |
437 | PN_SCHEDSTAT(se->statistics.sleep_start); | |
438 | PN_SCHEDSTAT(se->statistics.block_start); | |
439 | PN_SCHEDSTAT(se->statistics.sleep_max); | |
440 | PN_SCHEDSTAT(se->statistics.block_max); | |
441 | PN_SCHEDSTAT(se->statistics.exec_max); | |
442 | PN_SCHEDSTAT(se->statistics.slice_max); | |
443 | PN_SCHEDSTAT(se->statistics.wait_max); | |
444 | PN_SCHEDSTAT(se->statistics.wait_sum); | |
445 | P_SCHEDSTAT(se->statistics.wait_count); | |
cb251765 | 446 | } |
ff9b48c3 | 447 | P(se->load.weight); |
9d85f21c | 448 | #ifdef CONFIG_SMP |
9d89c257 YD |
449 | P(se->avg.load_avg); |
450 | P(se->avg.util_avg); | |
9d85f21c | 451 | #endif |
4fa8d299 JP |
452 | |
453 | #undef PN_SCHEDSTAT | |
ff9b48c3 | 454 | #undef PN |
4fa8d299 | 455 | #undef P_SCHEDSTAT |
ff9b48c3 BR |
456 | #undef P |
457 | } | |
458 | #endif | |
459 | ||
efe25c2c BR |
460 | #ifdef CONFIG_CGROUP_SCHED |
461 | static char group_path[PATH_MAX]; | |
462 | ||
463 | static char *task_group_path(struct task_group *tg) | |
464 | { | |
8ecedd7a BR |
465 | if (autogroup_path(tg, group_path, PATH_MAX)) |
466 | return group_path; | |
467 | ||
4c737b41 TH |
468 | cgroup_path(tg->css.cgroup, group_path, PATH_MAX); |
469 | return group_path; | |
efe25c2c BR |
470 | } |
471 | #endif | |
472 | ||
43ae34cb | 473 | static void |
a48da48b | 474 | print_task(struct seq_file *m, struct rq *rq, struct task_struct *p) |
43ae34cb | 475 | { |
20435d84 | 476 | if (rq->curr == p) |
e8c16495 | 477 | SEQ_printf(m, ">R"); |
20435d84 XX |
478 | else |
479 | SEQ_printf(m, " %c", task_state_to_char(p)); | |
43ae34cb | 480 | |
ef83a571 | 481 | SEQ_printf(m, "%15s %5d %9Ld.%06ld %9Ld %5d ", |
fc840914 | 482 | p->comm, task_pid_nr(p), |
ef83a571 | 483 | SPLIT_NS(p->se.vruntime), |
43ae34cb | 484 | (long long)(p->nvcsw + p->nivcsw), |
6f605d83 | 485 | p->prio); |
9c572591 | 486 | |
33d6176e | 487 | SEQ_printf(m, "%9Ld.%06ld %9Ld.%06ld %9Ld.%06ld", |
20e1d486 | 488 | SPLIT_NS(schedstat_val_or_zero(p->se.statistics.wait_sum)), |
33d6176e | 489 | SPLIT_NS(p->se.sum_exec_runtime), |
20e1d486 | 490 | SPLIT_NS(schedstat_val_or_zero(p->se.statistics.sum_sleep_runtime))); |
9c572591 | 491 | |
b32e86b4 | 492 | #ifdef CONFIG_NUMA_BALANCING |
e3d24d0a | 493 | SEQ_printf(m, " %d %d", task_node(p), task_numa_group_id(p)); |
b32e86b4 | 494 | #endif |
efe25c2c BR |
495 | #ifdef CONFIG_CGROUP_SCHED |
496 | SEQ_printf(m, " %s", task_group_path(task_group(p))); | |
497 | #endif | |
d19ca308 | 498 | |
d19ca308 | 499 | SEQ_printf(m, "\n"); |
43ae34cb IM |
500 | } |
501 | ||
a48da48b | 502 | static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu) |
43ae34cb IM |
503 | { |
504 | struct task_struct *g, *p; | |
505 | ||
506 | SEQ_printf(m, | |
507 | "\nrunnable tasks:\n" | |
e8c16495 | 508 | " S task PID tree-key switches prio" |
c5f3ab1c | 509 | " wait-time sum-exec sum-sleep\n" |
e8c16495 | 510 | "-------------------------------------------------------" |
c86da3a3 | 511 | "----------------------------------------------------\n"); |
43ae34cb | 512 | |
5bd96ab6 | 513 | rcu_read_lock(); |
d38e83c7 | 514 | for_each_process_thread(g, p) { |
b32e86b4 | 515 | if (task_cpu(p) != rq_cpu) |
43ae34cb IM |
516 | continue; |
517 | ||
a48da48b | 518 | print_task(m, rq, p); |
d38e83c7 | 519 | } |
5bd96ab6 | 520 | rcu_read_unlock(); |
43ae34cb IM |
521 | } |
522 | ||
5cef9eca | 523 | void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq) |
43ae34cb | 524 | { |
86d9560c IM |
525 | s64 MIN_vruntime = -1, min_vruntime, max_vruntime = -1, |
526 | spread, rq0_min_vruntime, spread0; | |
348ec61e | 527 | struct rq *rq = cpu_rq(cpu); |
67e12eac IM |
528 | struct sched_entity *last; |
529 | unsigned long flags; | |
530 | ||
efe25c2c BR |
531 | #ifdef CONFIG_FAIR_GROUP_SCHED |
532 | SEQ_printf(m, "\ncfs_rq[%d]:%s\n", cpu, task_group_path(cfs_rq->tg)); | |
533 | #else | |
ada18de2 | 534 | SEQ_printf(m, "\ncfs_rq[%d]:\n", cpu); |
efe25c2c | 535 | #endif |
ef83a571 IM |
536 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "exec_clock", |
537 | SPLIT_NS(cfs_rq->exec_clock)); | |
67e12eac | 538 | |
05fa785c | 539 | raw_spin_lock_irqsave(&rq->lock, flags); |
bfb06889 | 540 | if (rb_first_cached(&cfs_rq->tasks_timeline)) |
ac53db59 | 541 | MIN_vruntime = (__pick_first_entity(cfs_rq))->vruntime; |
67e12eac IM |
542 | last = __pick_last_entity(cfs_rq); |
543 | if (last) | |
544 | max_vruntime = last->vruntime; | |
5ac5c4d6 | 545 | min_vruntime = cfs_rq->min_vruntime; |
348ec61e | 546 | rq0_min_vruntime = cpu_rq(0)->cfs.min_vruntime; |
05fa785c | 547 | raw_spin_unlock_irqrestore(&rq->lock, flags); |
ef83a571 IM |
548 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "MIN_vruntime", |
549 | SPLIT_NS(MIN_vruntime)); | |
550 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "min_vruntime", | |
551 | SPLIT_NS(min_vruntime)); | |
552 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "max_vruntime", | |
553 | SPLIT_NS(max_vruntime)); | |
67e12eac | 554 | spread = max_vruntime - MIN_vruntime; |
ef83a571 IM |
555 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "spread", |
556 | SPLIT_NS(spread)); | |
86d9560c | 557 | spread0 = min_vruntime - rq0_min_vruntime; |
ef83a571 IM |
558 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "spread0", |
559 | SPLIT_NS(spread0)); | |
5ac5c4d6 | 560 | SEQ_printf(m, " .%-30s: %d\n", "nr_spread_over", |
ddc97297 | 561 | cfs_rq->nr_spread_over); |
c82513e5 | 562 | SEQ_printf(m, " .%-30s: %d\n", "nr_running", cfs_rq->nr_running); |
2069dd75 | 563 | SEQ_printf(m, " .%-30s: %ld\n", "load", cfs_rq->load.weight); |
c09595f6 | 564 | #ifdef CONFIG_SMP |
9d89c257 YD |
565 | SEQ_printf(m, " .%-30s: %lu\n", "load_avg", |
566 | cfs_rq->avg.load_avg); | |
13962234 YD |
567 | SEQ_printf(m, " .%-30s: %lu\n", "runnable_load_avg", |
568 | cfs_rq->runnable_load_avg); | |
9d89c257 YD |
569 | SEQ_printf(m, " .%-30s: %lu\n", "util_avg", |
570 | cfs_rq->avg.util_avg); | |
571 | SEQ_printf(m, " .%-30s: %ld\n", "removed_load_avg", | |
572 | atomic_long_read(&cfs_rq->removed_load_avg)); | |
573 | SEQ_printf(m, " .%-30s: %ld\n", "removed_util_avg", | |
574 | atomic_long_read(&cfs_rq->removed_util_avg)); | |
333bb864 | 575 | #ifdef CONFIG_FAIR_GROUP_SCHED |
9d89c257 YD |
576 | SEQ_printf(m, " .%-30s: %lu\n", "tg_load_avg_contrib", |
577 | cfs_rq->tg_load_avg_contrib); | |
333bb864 AS |
578 | SEQ_printf(m, " .%-30s: %ld\n", "tg_load_avg", |
579 | atomic_long_read(&cfs_rq->tg->load_avg)); | |
c09595f6 | 580 | #endif |
333bb864 | 581 | #endif |
f9f9ffc2 | 582 | #ifdef CONFIG_CFS_BANDWIDTH |
f9f9ffc2 BS |
583 | SEQ_printf(m, " .%-30s: %d\n", "throttled", |
584 | cfs_rq->throttled); | |
585 | SEQ_printf(m, " .%-30s: %d\n", "throttle_count", | |
586 | cfs_rq->throttle_count); | |
587 | #endif | |
2069dd75 | 588 | |
333bb864 | 589 | #ifdef CONFIG_FAIR_GROUP_SCHED |
ff9b48c3 | 590 | print_cfs_group_stats(m, cpu, cfs_rq->tg); |
c09595f6 | 591 | #endif |
43ae34cb IM |
592 | } |
593 | ||
ada18de2 PZ |
594 | void print_rt_rq(struct seq_file *m, int cpu, struct rt_rq *rt_rq) |
595 | { | |
efe25c2c BR |
596 | #ifdef CONFIG_RT_GROUP_SCHED |
597 | SEQ_printf(m, "\nrt_rq[%d]:%s\n", cpu, task_group_path(rt_rq->tg)); | |
598 | #else | |
ada18de2 | 599 | SEQ_printf(m, "\nrt_rq[%d]:\n", cpu); |
efe25c2c | 600 | #endif |
ada18de2 PZ |
601 | |
602 | #define P(x) \ | |
603 | SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rt_rq->x)) | |
48365b38 DBO |
604 | #define PU(x) \ |
605 | SEQ_printf(m, " .%-30s: %lu\n", #x, (unsigned long)(rt_rq->x)) | |
ada18de2 PZ |
606 | #define PN(x) \ |
607 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rt_rq->x)) | |
608 | ||
48365b38 DBO |
609 | PU(rt_nr_running); |
610 | #ifdef CONFIG_SMP | |
611 | PU(rt_nr_migratory); | |
612 | #endif | |
ada18de2 PZ |
613 | P(rt_throttled); |
614 | PN(rt_time); | |
615 | PN(rt_runtime); | |
616 | ||
617 | #undef PN | |
48365b38 | 618 | #undef PU |
ada18de2 PZ |
619 | #undef P |
620 | } | |
621 | ||
acb32132 WL |
622 | void print_dl_rq(struct seq_file *m, int cpu, struct dl_rq *dl_rq) |
623 | { | |
ef477183 SRRH |
624 | struct dl_bw *dl_bw; |
625 | ||
acb32132 | 626 | SEQ_printf(m, "\ndl_rq[%d]:\n", cpu); |
48365b38 DBO |
627 | |
628 | #define PU(x) \ | |
629 | SEQ_printf(m, " .%-30s: %lu\n", #x, (unsigned long)(dl_rq->x)) | |
630 | ||
631 | PU(dl_nr_running); | |
ef477183 | 632 | #ifdef CONFIG_SMP |
48365b38 | 633 | PU(dl_nr_migratory); |
ef477183 SRRH |
634 | dl_bw = &cpu_rq(cpu)->rd->dl_bw; |
635 | #else | |
636 | dl_bw = &dl_rq->dl_bw; | |
637 | #endif | |
638 | SEQ_printf(m, " .%-30s: %lld\n", "dl_bw->bw", dl_bw->bw); | |
639 | SEQ_printf(m, " .%-30s: %lld\n", "dl_bw->total_bw", dl_bw->total_bw); | |
48365b38 DBO |
640 | |
641 | #undef PU | |
acb32132 WL |
642 | } |
643 | ||
5bb6b1ea PZ |
644 | extern __read_mostly int sched_clock_running; |
645 | ||
a48da48b | 646 | static void print_cpu(struct seq_file *m, int cpu) |
43ae34cb | 647 | { |
348ec61e | 648 | struct rq *rq = cpu_rq(cpu); |
efe25c2c | 649 | unsigned long flags; |
43ae34cb IM |
650 | |
651 | #ifdef CONFIG_X86 | |
652 | { | |
653 | unsigned int freq = cpu_khz ? : 1; | |
654 | ||
bbbfeac9 | 655 | SEQ_printf(m, "cpu#%d, %u.%03u MHz\n", |
43ae34cb IM |
656 | cpu, freq / 1000, (freq % 1000)); |
657 | } | |
658 | #else | |
bbbfeac9 | 659 | SEQ_printf(m, "cpu#%d\n", cpu); |
43ae34cb IM |
660 | #endif |
661 | ||
13e099d2 PZ |
662 | #define P(x) \ |
663 | do { \ | |
664 | if (sizeof(rq->x) == 4) \ | |
665 | SEQ_printf(m, " .%-30s: %ld\n", #x, (long)(rq->x)); \ | |
666 | else \ | |
667 | SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rq->x));\ | |
668 | } while (0) | |
669 | ||
ef83a571 IM |
670 | #define PN(x) \ |
671 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rq->x)) | |
43ae34cb IM |
672 | |
673 | P(nr_running); | |
674 | SEQ_printf(m, " .%-30s: %lu\n", "load", | |
495eca49 | 675 | rq->load.weight); |
43ae34cb IM |
676 | P(nr_switches); |
677 | P(nr_load_updates); | |
678 | P(nr_uninterruptible); | |
ef83a571 | 679 | PN(next_balance); |
fc840914 | 680 | SEQ_printf(m, " .%-30s: %ld\n", "curr->pid", (long)(task_pid_nr(rq->curr))); |
ef83a571 | 681 | PN(clock); |
5a537597 | 682 | PN(clock_task); |
43ae34cb IM |
683 | P(cpu_load[0]); |
684 | P(cpu_load[1]); | |
685 | P(cpu_load[2]); | |
686 | P(cpu_load[3]); | |
687 | P(cpu_load[4]); | |
688 | #undef P | |
ef83a571 | 689 | #undef PN |
43ae34cb | 690 | |
1b9508f6 | 691 | #ifdef CONFIG_SMP |
db6ea2fb | 692 | #define P64(n) SEQ_printf(m, " .%-30s: %Ld\n", #n, rq->n); |
1b9508f6 | 693 | P64(avg_idle); |
37e6bae8 | 694 | P64(max_idle_balance_cost); |
db6ea2fb | 695 | #undef P64 |
1b9508f6 | 696 | #endif |
5ac5c4d6 | 697 | |
4fa8d299 | 698 | #define P(n) SEQ_printf(m, " .%-30s: %d\n", #n, schedstat_val(rq->n)); |
cb251765 MG |
699 | if (schedstat_enabled()) { |
700 | P(yld_count); | |
701 | P(sched_count); | |
702 | P(sched_goidle); | |
703 | P(ttwu_count); | |
704 | P(ttwu_local); | |
705 | } | |
5ac5c4d6 | 706 | #undef P |
4fa8d299 | 707 | |
efe25c2c | 708 | spin_lock_irqsave(&sched_debug_lock, flags); |
5cef9eca | 709 | print_cfs_stats(m, cpu); |
ada18de2 | 710 | print_rt_stats(m, cpu); |
acb32132 | 711 | print_dl_stats(m, cpu); |
43ae34cb | 712 | |
a48da48b | 713 | print_rq(m, rq, cpu); |
efe25c2c | 714 | spin_unlock_irqrestore(&sched_debug_lock, flags); |
bbbfeac9 | 715 | SEQ_printf(m, "\n"); |
43ae34cb IM |
716 | } |
717 | ||
1983a922 CE |
718 | static const char *sched_tunable_scaling_names[] = { |
719 | "none", | |
720 | "logaritmic", | |
721 | "linear" | |
722 | }; | |
723 | ||
bbbfeac9 | 724 | static void sched_debug_header(struct seq_file *m) |
43ae34cb | 725 | { |
5bb6b1ea PZ |
726 | u64 ktime, sched_clk, cpu_clk; |
727 | unsigned long flags; | |
43ae34cb | 728 | |
5bb6b1ea PZ |
729 | local_irq_save(flags); |
730 | ktime = ktime_to_ns(ktime_get()); | |
731 | sched_clk = sched_clock(); | |
732 | cpu_clk = local_clock(); | |
733 | local_irq_restore(flags); | |
734 | ||
b32e86b4 | 735 | SEQ_printf(m, "Sched Debug Version: v0.11, %s %.*s\n", |
43ae34cb IM |
736 | init_utsname()->release, |
737 | (int)strcspn(init_utsname()->version, " "), | |
738 | init_utsname()->version); | |
739 | ||
5bb6b1ea PZ |
740 | #define P(x) \ |
741 | SEQ_printf(m, "%-40s: %Ld\n", #x, (long long)(x)) | |
742 | #define PN(x) \ | |
743 | SEQ_printf(m, "%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x)) | |
744 | PN(ktime); | |
745 | PN(sched_clk); | |
746 | PN(cpu_clk); | |
747 | P(jiffies); | |
748 | #ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK | |
35af99e6 | 749 | P(sched_clock_stable()); |
5bb6b1ea PZ |
750 | #endif |
751 | #undef PN | |
752 | #undef P | |
753 | ||
754 | SEQ_printf(m, "\n"); | |
755 | SEQ_printf(m, "sysctl_sched\n"); | |
43ae34cb | 756 | |
1aa4731e | 757 | #define P(x) \ |
d822cece | 758 | SEQ_printf(m, " .%-40s: %Ld\n", #x, (long long)(x)) |
1aa4731e | 759 | #define PN(x) \ |
d822cece | 760 | SEQ_printf(m, " .%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x)) |
1aa4731e | 761 | PN(sysctl_sched_latency); |
b2be5e96 | 762 | PN(sysctl_sched_min_granularity); |
1aa4731e | 763 | PN(sysctl_sched_wakeup_granularity); |
eebef746 | 764 | P(sysctl_sched_child_runs_first); |
1aa4731e IM |
765 | P(sysctl_sched_features); |
766 | #undef PN | |
767 | #undef P | |
768 | ||
bbbfeac9 NZ |
769 | SEQ_printf(m, " .%-40s: %d (%s)\n", |
770 | "sysctl_sched_tunable_scaling", | |
1983a922 CE |
771 | sysctl_sched_tunable_scaling, |
772 | sched_tunable_scaling_names[sysctl_sched_tunable_scaling]); | |
bbbfeac9 NZ |
773 | SEQ_printf(m, "\n"); |
774 | } | |
1983a922 | 775 | |
bbbfeac9 NZ |
776 | static int sched_debug_show(struct seq_file *m, void *v) |
777 | { | |
778 | int cpu = (unsigned long)(v - 2); | |
43ae34cb | 779 | |
bbbfeac9 NZ |
780 | if (cpu != -1) |
781 | print_cpu(m, cpu); | |
782 | else | |
783 | sched_debug_header(m); | |
43ae34cb IM |
784 | |
785 | return 0; | |
786 | } | |
787 | ||
029632fb | 788 | void sysrq_sched_debug_show(void) |
43ae34cb | 789 | { |
bbbfeac9 NZ |
790 | int cpu; |
791 | ||
792 | sched_debug_header(NULL); | |
793 | for_each_online_cpu(cpu) | |
794 | print_cpu(NULL, cpu); | |
795 | ||
796 | } | |
797 | ||
798 | /* | |
799 | * This itererator needs some explanation. | |
800 | * It returns 1 for the header position. | |
801 | * This means 2 is cpu 0. | |
802 | * In a hotplugged system some cpus, including cpu 0, may be missing so we have | |
803 | * to use cpumask_* to iterate over the cpus. | |
804 | */ | |
805 | static void *sched_debug_start(struct seq_file *file, loff_t *offset) | |
806 | { | |
807 | unsigned long n = *offset; | |
808 | ||
809 | if (n == 0) | |
810 | return (void *) 1; | |
811 | ||
812 | n--; | |
813 | ||
814 | if (n > 0) | |
815 | n = cpumask_next(n - 1, cpu_online_mask); | |
816 | else | |
817 | n = cpumask_first(cpu_online_mask); | |
818 | ||
819 | *offset = n + 1; | |
820 | ||
821 | if (n < nr_cpu_ids) | |
822 | return (void *)(unsigned long)(n + 2); | |
823 | return NULL; | |
824 | } | |
825 | ||
826 | static void *sched_debug_next(struct seq_file *file, void *data, loff_t *offset) | |
827 | { | |
828 | (*offset)++; | |
829 | return sched_debug_start(file, offset); | |
830 | } | |
831 | ||
832 | static void sched_debug_stop(struct seq_file *file, void *data) | |
833 | { | |
834 | } | |
835 | ||
836 | static const struct seq_operations sched_debug_sops = { | |
837 | .start = sched_debug_start, | |
838 | .next = sched_debug_next, | |
839 | .stop = sched_debug_stop, | |
840 | .show = sched_debug_show, | |
841 | }; | |
842 | ||
843 | static int sched_debug_release(struct inode *inode, struct file *file) | |
844 | { | |
845 | seq_release(inode, file); | |
846 | ||
847 | return 0; | |
43ae34cb IM |
848 | } |
849 | ||
850 | static int sched_debug_open(struct inode *inode, struct file *filp) | |
851 | { | |
bbbfeac9 NZ |
852 | int ret = 0; |
853 | ||
854 | ret = seq_open(filp, &sched_debug_sops); | |
855 | ||
856 | return ret; | |
43ae34cb IM |
857 | } |
858 | ||
0dbee3a6 | 859 | static const struct file_operations sched_debug_fops = { |
43ae34cb IM |
860 | .open = sched_debug_open, |
861 | .read = seq_read, | |
862 | .llseek = seq_lseek, | |
bbbfeac9 | 863 | .release = sched_debug_release, |
43ae34cb IM |
864 | }; |
865 | ||
866 | static int __init init_sched_debug_procfs(void) | |
867 | { | |
868 | struct proc_dir_entry *pe; | |
869 | ||
a9cf4ddb | 870 | pe = proc_create("sched_debug", 0444, NULL, &sched_debug_fops); |
43ae34cb IM |
871 | if (!pe) |
872 | return -ENOMEM; | |
43ae34cb IM |
873 | return 0; |
874 | } | |
875 | ||
876 | __initcall(init_sched_debug_procfs); | |
877 | ||
b32e86b4 IM |
878 | #define __P(F) \ |
879 | SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)F) | |
880 | #define P(F) \ | |
881 | SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)p->F) | |
882 | #define __PN(F) \ | |
883 | SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)F)) | |
884 | #define PN(F) \ | |
885 | SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F)) | |
886 | ||
887 | ||
397f2378 SD |
888 | #ifdef CONFIG_NUMA_BALANCING |
889 | void print_numa_stats(struct seq_file *m, int node, unsigned long tsf, | |
890 | unsigned long tpf, unsigned long gsf, unsigned long gpf) | |
891 | { | |
892 | SEQ_printf(m, "numa_faults node=%d ", node); | |
893 | SEQ_printf(m, "task_private=%lu task_shared=%lu ", tsf, tpf); | |
894 | SEQ_printf(m, "group_private=%lu group_shared=%lu\n", gsf, gpf); | |
895 | } | |
896 | #endif | |
897 | ||
898 | ||
b32e86b4 IM |
899 | static void sched_show_numa(struct task_struct *p, struct seq_file *m) |
900 | { | |
901 | #ifdef CONFIG_NUMA_BALANCING | |
902 | struct mempolicy *pol; | |
b32e86b4 IM |
903 | |
904 | if (p->mm) | |
905 | P(mm->numa_scan_seq); | |
906 | ||
907 | task_lock(p); | |
908 | pol = p->mempolicy; | |
909 | if (pol && !(pol->flags & MPOL_F_MORON)) | |
910 | pol = NULL; | |
911 | mpol_get(pol); | |
912 | task_unlock(p); | |
913 | ||
397f2378 SD |
914 | P(numa_pages_migrated); |
915 | P(numa_preferred_nid); | |
916 | P(total_numa_faults); | |
917 | SEQ_printf(m, "current_node=%d, numa_group_id=%d\n", | |
918 | task_node(p), task_numa_group_id(p)); | |
919 | show_numa_stats(p, m); | |
b32e86b4 IM |
920 | mpol_put(pol); |
921 | #endif | |
922 | } | |
923 | ||
74dc3384 AS |
924 | void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns, |
925 | struct seq_file *m) | |
43ae34cb | 926 | { |
cc367732 | 927 | unsigned long nr_switches; |
43ae34cb | 928 | |
74dc3384 | 929 | SEQ_printf(m, "%s (%d, #threads: %d)\n", p->comm, task_pid_nr_ns(p, ns), |
5089a976 | 930 | get_nr_threads(p)); |
2d92f227 | 931 | SEQ_printf(m, |
add332a1 KB |
932 | "---------------------------------------------------------" |
933 | "----------\n"); | |
cc367732 | 934 | #define __P(F) \ |
add332a1 | 935 | SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)F) |
43ae34cb | 936 | #define P(F) \ |
add332a1 | 937 | SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)p->F) |
4fa8d299 JP |
938 | #define P_SCHEDSTAT(F) \ |
939 | SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)schedstat_val(p->F)) | |
cc367732 | 940 | #define __PN(F) \ |
add332a1 | 941 | SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)F)) |
ef83a571 | 942 | #define PN(F) \ |
add332a1 | 943 | SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F)) |
4fa8d299 JP |
944 | #define PN_SCHEDSTAT(F) \ |
945 | SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)schedstat_val(p->F))) | |
43ae34cb | 946 | |
ef83a571 IM |
947 | PN(se.exec_start); |
948 | PN(se.vruntime); | |
949 | PN(se.sum_exec_runtime); | |
6cfb0d5d | 950 | |
cc367732 IM |
951 | nr_switches = p->nvcsw + p->nivcsw; |
952 | ||
cc367732 | 953 | P(se.nr_migrations); |
cc367732 | 954 | |
cb251765 | 955 | if (schedstat_enabled()) { |
cc367732 IM |
956 | u64 avg_atom, avg_per_cpu; |
957 | ||
4fa8d299 JP |
958 | PN_SCHEDSTAT(se.statistics.sum_sleep_runtime); |
959 | PN_SCHEDSTAT(se.statistics.wait_start); | |
960 | PN_SCHEDSTAT(se.statistics.sleep_start); | |
961 | PN_SCHEDSTAT(se.statistics.block_start); | |
962 | PN_SCHEDSTAT(se.statistics.sleep_max); | |
963 | PN_SCHEDSTAT(se.statistics.block_max); | |
964 | PN_SCHEDSTAT(se.statistics.exec_max); | |
965 | PN_SCHEDSTAT(se.statistics.slice_max); | |
966 | PN_SCHEDSTAT(se.statistics.wait_max); | |
967 | PN_SCHEDSTAT(se.statistics.wait_sum); | |
968 | P_SCHEDSTAT(se.statistics.wait_count); | |
969 | PN_SCHEDSTAT(se.statistics.iowait_sum); | |
970 | P_SCHEDSTAT(se.statistics.iowait_count); | |
971 | P_SCHEDSTAT(se.statistics.nr_migrations_cold); | |
972 | P_SCHEDSTAT(se.statistics.nr_failed_migrations_affine); | |
973 | P_SCHEDSTAT(se.statistics.nr_failed_migrations_running); | |
974 | P_SCHEDSTAT(se.statistics.nr_failed_migrations_hot); | |
975 | P_SCHEDSTAT(se.statistics.nr_forced_migrations); | |
976 | P_SCHEDSTAT(se.statistics.nr_wakeups); | |
977 | P_SCHEDSTAT(se.statistics.nr_wakeups_sync); | |
978 | P_SCHEDSTAT(se.statistics.nr_wakeups_migrate); | |
979 | P_SCHEDSTAT(se.statistics.nr_wakeups_local); | |
980 | P_SCHEDSTAT(se.statistics.nr_wakeups_remote); | |
981 | P_SCHEDSTAT(se.statistics.nr_wakeups_affine); | |
982 | P_SCHEDSTAT(se.statistics.nr_wakeups_affine_attempts); | |
983 | P_SCHEDSTAT(se.statistics.nr_wakeups_passive); | |
984 | P_SCHEDSTAT(se.statistics.nr_wakeups_idle); | |
cb251765 | 985 | |
cc367732 IM |
986 | avg_atom = p->se.sum_exec_runtime; |
987 | if (nr_switches) | |
b0ab99e7 | 988 | avg_atom = div64_ul(avg_atom, nr_switches); |
cc367732 IM |
989 | else |
990 | avg_atom = -1LL; | |
991 | ||
992 | avg_per_cpu = p->se.sum_exec_runtime; | |
c1a89740 | 993 | if (p->se.nr_migrations) { |
6f6d6a1a RZ |
994 | avg_per_cpu = div64_u64(avg_per_cpu, |
995 | p->se.nr_migrations); | |
c1a89740 | 996 | } else { |
cc367732 | 997 | avg_per_cpu = -1LL; |
c1a89740 | 998 | } |
cc367732 IM |
999 | |
1000 | __PN(avg_atom); | |
1001 | __PN(avg_per_cpu); | |
1002 | } | |
4fa8d299 | 1003 | |
cc367732 | 1004 | __P(nr_switches); |
add332a1 | 1005 | SEQ_printf(m, "%-45s:%21Ld\n", |
cc367732 | 1006 | "nr_voluntary_switches", (long long)p->nvcsw); |
add332a1 | 1007 | SEQ_printf(m, "%-45s:%21Ld\n", |
cc367732 IM |
1008 | "nr_involuntary_switches", (long long)p->nivcsw); |
1009 | ||
43ae34cb | 1010 | P(se.load.weight); |
333bb864 | 1011 | #ifdef CONFIG_SMP |
9d89c257 YD |
1012 | P(se.avg.load_sum); |
1013 | P(se.avg.util_sum); | |
1014 | P(se.avg.load_avg); | |
1015 | P(se.avg.util_avg); | |
1016 | P(se.avg.last_update_time); | |
939fd731 | 1017 | #endif |
43ae34cb IM |
1018 | P(policy); |
1019 | P(prio); | |
59f8c298 TC |
1020 | if (p->policy == SCHED_DEADLINE) { |
1021 | P(dl.runtime); | |
1022 | P(dl.deadline); | |
1023 | } | |
4fa8d299 | 1024 | #undef PN_SCHEDSTAT |
ef83a571 | 1025 | #undef PN |
cc367732 | 1026 | #undef __PN |
4fa8d299 | 1027 | #undef P_SCHEDSTAT |
cc367732 IM |
1028 | #undef P |
1029 | #undef __P | |
43ae34cb IM |
1030 | |
1031 | { | |
29d7b90c | 1032 | unsigned int this_cpu = raw_smp_processor_id(); |
43ae34cb IM |
1033 | u64 t0, t1; |
1034 | ||
29d7b90c IM |
1035 | t0 = cpu_clock(this_cpu); |
1036 | t1 = cpu_clock(this_cpu); | |
add332a1 | 1037 | SEQ_printf(m, "%-45s:%21Ld\n", |
43ae34cb IM |
1038 | "clock-delta", (long long)(t1-t0)); |
1039 | } | |
b32e86b4 IM |
1040 | |
1041 | sched_show_numa(p, m); | |
43ae34cb IM |
1042 | } |
1043 | ||
1044 | void proc_sched_set_task(struct task_struct *p) | |
1045 | { | |
6cfb0d5d | 1046 | #ifdef CONFIG_SCHEDSTATS |
41acab88 | 1047 | memset(&p->se.statistics, 0, sizeof(p->se.statistics)); |
6cfb0d5d | 1048 | #endif |
43ae34cb | 1049 | } |