Commit | Line | Data |
---|---|---|
43ae34cb | 1 | /* |
391e43da | 2 | * kernel/sched/debug.c |
43ae34cb | 3 | * |
325ea10c | 4 | * Print the CFS rbtree and other debugging details |
43ae34cb IM |
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 | */ | |
029632fb PZ |
12 | #include "sched.h" |
13 | ||
efe25c2c BR |
14 | static DEFINE_SPINLOCK(sched_debug_lock); |
15 | ||
43ae34cb IM |
16 | /* |
17 | * This allows printing both to /proc/sched_debug and | |
18 | * to the console | |
19 | */ | |
20 | #define SEQ_printf(m, x...) \ | |
21 | do { \ | |
22 | if (m) \ | |
23 | seq_printf(m, x); \ | |
24 | else \ | |
a8c024cd | 25 | pr_cont(x); \ |
43ae34cb IM |
26 | } while (0) |
27 | ||
ef83a571 IM |
28 | /* |
29 | * Ease the printing of nsec fields: | |
30 | */ | |
90b2628f | 31 | static long long nsec_high(unsigned long long nsec) |
ef83a571 | 32 | { |
90b2628f | 33 | if ((long long)nsec < 0) { |
ef83a571 IM |
34 | nsec = -nsec; |
35 | do_div(nsec, 1000000); | |
36 | return -nsec; | |
37 | } | |
38 | do_div(nsec, 1000000); | |
39 | ||
40 | return nsec; | |
41 | } | |
42 | ||
90b2628f | 43 | static unsigned long nsec_low(unsigned long long nsec) |
ef83a571 | 44 | { |
90b2628f | 45 | if ((long long)nsec < 0) |
ef83a571 IM |
46 | nsec = -nsec; |
47 | ||
48 | return do_div(nsec, 1000000); | |
49 | } | |
50 | ||
51 | #define SPLIT_NS(x) nsec_high(x), nsec_low(x) | |
52 | ||
d6ca41d7 SRRH |
53 | #define SCHED_FEAT(name, enabled) \ |
54 | #name , | |
55 | ||
56 | static const char * const sched_feat_names[] = { | |
57 | #include "features.h" | |
58 | }; | |
59 | ||
60 | #undef SCHED_FEAT | |
61 | ||
62 | static int sched_feat_show(struct seq_file *m, void *v) | |
63 | { | |
64 | int i; | |
65 | ||
66 | for (i = 0; i < __SCHED_FEAT_NR; i++) { | |
67 | if (!(sysctl_sched_features & (1UL << i))) | |
68 | seq_puts(m, "NO_"); | |
69 | seq_printf(m, "%s ", sched_feat_names[i]); | |
70 | } | |
71 | seq_puts(m, "\n"); | |
72 | ||
73 | return 0; | |
74 | } | |
75 | ||
e9666d10 | 76 | #ifdef CONFIG_JUMP_LABEL |
d6ca41d7 SRRH |
77 | |
78 | #define jump_label_key__true STATIC_KEY_INIT_TRUE | |
79 | #define jump_label_key__false STATIC_KEY_INIT_FALSE | |
80 | ||
81 | #define SCHED_FEAT(name, enabled) \ | |
82 | jump_label_key__##enabled , | |
83 | ||
84 | struct static_key sched_feat_keys[__SCHED_FEAT_NR] = { | |
85 | #include "features.h" | |
86 | }; | |
87 | ||
88 | #undef SCHED_FEAT | |
89 | ||
90 | static void sched_feat_disable(int i) | |
91 | { | |
e73e8197 | 92 | static_key_disable_cpuslocked(&sched_feat_keys[i]); |
d6ca41d7 SRRH |
93 | } |
94 | ||
95 | static void sched_feat_enable(int i) | |
96 | { | |
e73e8197 | 97 | static_key_enable_cpuslocked(&sched_feat_keys[i]); |
d6ca41d7 SRRH |
98 | } |
99 | #else | |
100 | static void sched_feat_disable(int i) { }; | |
101 | static void sched_feat_enable(int i) { }; | |
e9666d10 | 102 | #endif /* CONFIG_JUMP_LABEL */ |
d6ca41d7 SRRH |
103 | |
104 | static int sched_feat_set(char *cmp) | |
105 | { | |
106 | int i; | |
107 | int neg = 0; | |
108 | ||
109 | if (strncmp(cmp, "NO_", 3) == 0) { | |
110 | neg = 1; | |
111 | cmp += 3; | |
112 | } | |
113 | ||
8f894bf4 YX |
114 | i = match_string(sched_feat_names, __SCHED_FEAT_NR, cmp); |
115 | if (i < 0) | |
116 | return i; | |
117 | ||
118 | if (neg) { | |
119 | sysctl_sched_features &= ~(1UL << i); | |
120 | sched_feat_disable(i); | |
121 | } else { | |
122 | sysctl_sched_features |= (1UL << i); | |
123 | sched_feat_enable(i); | |
d6ca41d7 SRRH |
124 | } |
125 | ||
8f894bf4 | 126 | return 0; |
d6ca41d7 SRRH |
127 | } |
128 | ||
129 | static ssize_t | |
130 | sched_feat_write(struct file *filp, const char __user *ubuf, | |
131 | size_t cnt, loff_t *ppos) | |
132 | { | |
133 | char buf[64]; | |
134 | char *cmp; | |
8f894bf4 | 135 | int ret; |
d6ca41d7 SRRH |
136 | struct inode *inode; |
137 | ||
138 | if (cnt > 63) | |
139 | cnt = 63; | |
140 | ||
141 | if (copy_from_user(&buf, ubuf, cnt)) | |
142 | return -EFAULT; | |
143 | ||
144 | buf[cnt] = 0; | |
145 | cmp = strstrip(buf); | |
146 | ||
147 | /* Ensure the static_key remains in a consistent state */ | |
148 | inode = file_inode(filp); | |
e73e8197 | 149 | cpus_read_lock(); |
d6ca41d7 | 150 | inode_lock(inode); |
8f894bf4 | 151 | ret = sched_feat_set(cmp); |
d6ca41d7 | 152 | inode_unlock(inode); |
e73e8197 | 153 | cpus_read_unlock(); |
8f894bf4 YX |
154 | if (ret < 0) |
155 | return ret; | |
d6ca41d7 SRRH |
156 | |
157 | *ppos += cnt; | |
158 | ||
159 | return cnt; | |
160 | } | |
161 | ||
162 | static int sched_feat_open(struct inode *inode, struct file *filp) | |
163 | { | |
164 | return single_open(filp, sched_feat_show, NULL); | |
165 | } | |
166 | ||
167 | static const struct file_operations sched_feat_fops = { | |
168 | .open = sched_feat_open, | |
169 | .write = sched_feat_write, | |
170 | .read = seq_read, | |
171 | .llseek = seq_lseek, | |
172 | .release = single_release, | |
173 | }; | |
174 | ||
9469eb01 PZ |
175 | __read_mostly bool sched_debug_enabled; |
176 | ||
d6ca41d7 SRRH |
177 | static __init int sched_init_debug(void) |
178 | { | |
179 | debugfs_create_file("sched_features", 0644, NULL, NULL, | |
180 | &sched_feat_fops); | |
181 | ||
9469eb01 PZ |
182 | debugfs_create_bool("sched_debug", 0644, NULL, |
183 | &sched_debug_enabled); | |
184 | ||
d6ca41d7 SRRH |
185 | return 0; |
186 | } | |
187 | late_initcall(sched_init_debug); | |
188 | ||
3866e845 SRRH |
189 | #ifdef CONFIG_SMP |
190 | ||
191 | #ifdef CONFIG_SYSCTL | |
192 | ||
193 | static struct ctl_table sd_ctl_dir[] = { | |
194 | { | |
195 | .procname = "sched_domain", | |
196 | .mode = 0555, | |
197 | }, | |
198 | {} | |
199 | }; | |
200 | ||
201 | static struct ctl_table sd_ctl_root[] = { | |
202 | { | |
203 | .procname = "kernel", | |
204 | .mode = 0555, | |
205 | .child = sd_ctl_dir, | |
206 | }, | |
207 | {} | |
208 | }; | |
209 | ||
210 | static struct ctl_table *sd_alloc_ctl_entry(int n) | |
211 | { | |
212 | struct ctl_table *entry = | |
213 | kcalloc(n, sizeof(struct ctl_table), GFP_KERNEL); | |
214 | ||
215 | return entry; | |
216 | } | |
217 | ||
218 | static void sd_free_ctl_entry(struct ctl_table **tablep) | |
219 | { | |
220 | struct ctl_table *entry; | |
221 | ||
222 | /* | |
223 | * In the intermediate directories, both the child directory and | |
224 | * procname are dynamically allocated and could fail but the mode | |
225 | * will always be set. In the lowest directory the names are | |
226 | * static strings and all have proc handlers. | |
227 | */ | |
228 | for (entry = *tablep; entry->mode; entry++) { | |
229 | if (entry->child) | |
230 | sd_free_ctl_entry(&entry->child); | |
231 | if (entry->proc_handler == NULL) | |
232 | kfree(entry->procname); | |
233 | } | |
234 | ||
235 | kfree(*tablep); | |
236 | *tablep = NULL; | |
237 | } | |
238 | ||
239 | static int min_load_idx = 0; | |
240 | static int max_load_idx = CPU_LOAD_IDX_MAX-1; | |
241 | ||
242 | static void | |
243 | set_table_entry(struct ctl_table *entry, | |
244 | const char *procname, void *data, int maxlen, | |
245 | umode_t mode, proc_handler *proc_handler, | |
246 | bool load_idx) | |
247 | { | |
248 | entry->procname = procname; | |
249 | entry->data = data; | |
250 | entry->maxlen = maxlen; | |
251 | entry->mode = mode; | |
252 | entry->proc_handler = proc_handler; | |
253 | ||
254 | if (load_idx) { | |
255 | entry->extra1 = &min_load_idx; | |
256 | entry->extra2 = &max_load_idx; | |
257 | } | |
258 | } | |
259 | ||
260 | static struct ctl_table * | |
261 | sd_alloc_ctl_domain_table(struct sched_domain *sd) | |
262 | { | |
263 | struct ctl_table *table = sd_alloc_ctl_entry(14); | |
264 | ||
265 | if (table == NULL) | |
266 | return NULL; | |
267 | ||
97fb7a0a IM |
268 | set_table_entry(&table[0] , "min_interval", &sd->min_interval, sizeof(long), 0644, proc_doulongvec_minmax, false); |
269 | set_table_entry(&table[1] , "max_interval", &sd->max_interval, sizeof(long), 0644, proc_doulongvec_minmax, false); | |
270 | set_table_entry(&table[2] , "busy_idx", &sd->busy_idx, sizeof(int) , 0644, proc_dointvec_minmax, true ); | |
271 | set_table_entry(&table[3] , "idle_idx", &sd->idle_idx, sizeof(int) , 0644, proc_dointvec_minmax, true ); | |
272 | set_table_entry(&table[4] , "newidle_idx", &sd->newidle_idx, sizeof(int) , 0644, proc_dointvec_minmax, true ); | |
273 | set_table_entry(&table[5] , "wake_idx", &sd->wake_idx, sizeof(int) , 0644, proc_dointvec_minmax, true ); | |
274 | set_table_entry(&table[6] , "forkexec_idx", &sd->forkexec_idx, sizeof(int) , 0644, proc_dointvec_minmax, true ); | |
275 | set_table_entry(&table[7] , "busy_factor", &sd->busy_factor, sizeof(int) , 0644, proc_dointvec_minmax, false); | |
276 | set_table_entry(&table[8] , "imbalance_pct", &sd->imbalance_pct, sizeof(int) , 0644, proc_dointvec_minmax, false); | |
277 | set_table_entry(&table[9] , "cache_nice_tries", &sd->cache_nice_tries, sizeof(int) , 0644, proc_dointvec_minmax, false); | |
278 | set_table_entry(&table[10], "flags", &sd->flags, sizeof(int) , 0644, proc_dointvec_minmax, false); | |
279 | set_table_entry(&table[11], "max_newidle_lb_cost", &sd->max_newidle_lb_cost, sizeof(long), 0644, proc_doulongvec_minmax, false); | |
280 | set_table_entry(&table[12], "name", sd->name, CORENAME_MAX_SIZE, 0444, proc_dostring, false); | |
3866e845 SRRH |
281 | /* &table[13] is terminator */ |
282 | ||
283 | return table; | |
284 | } | |
285 | ||
286 | static struct ctl_table *sd_alloc_ctl_cpu_table(int cpu) | |
287 | { | |
288 | struct ctl_table *entry, *table; | |
289 | struct sched_domain *sd; | |
290 | int domain_num = 0, i; | |
291 | char buf[32]; | |
292 | ||
293 | for_each_domain(cpu, sd) | |
294 | domain_num++; | |
295 | entry = table = sd_alloc_ctl_entry(domain_num + 1); | |
296 | if (table == NULL) | |
297 | return NULL; | |
298 | ||
299 | i = 0; | |
300 | for_each_domain(cpu, sd) { | |
301 | snprintf(buf, 32, "domain%d", i); | |
302 | entry->procname = kstrdup(buf, GFP_KERNEL); | |
303 | entry->mode = 0555; | |
304 | entry->child = sd_alloc_ctl_domain_table(sd); | |
305 | entry++; | |
306 | i++; | |
307 | } | |
308 | return table; | |
309 | } | |
310 | ||
97fb7a0a IM |
311 | static cpumask_var_t sd_sysctl_cpus; |
312 | static struct ctl_table_header *sd_sysctl_header; | |
bbdacdfe | 313 | |
3866e845 SRRH |
314 | void register_sched_domain_sysctl(void) |
315 | { | |
bbdacdfe PZ |
316 | static struct ctl_table *cpu_entries; |
317 | static struct ctl_table **cpu_idx; | |
3866e845 | 318 | char buf[32]; |
bbdacdfe | 319 | int i; |
3866e845 | 320 | |
bbdacdfe PZ |
321 | if (!cpu_entries) { |
322 | cpu_entries = sd_alloc_ctl_entry(num_possible_cpus() + 1); | |
323 | if (!cpu_entries) | |
324 | return; | |
3866e845 | 325 | |
bbdacdfe PZ |
326 | WARN_ON(sd_ctl_dir[0].child); |
327 | sd_ctl_dir[0].child = cpu_entries; | |
328 | } | |
3866e845 | 329 | |
bbdacdfe PZ |
330 | if (!cpu_idx) { |
331 | struct ctl_table *e = cpu_entries; | |
332 | ||
333 | cpu_idx = kcalloc(nr_cpu_ids, sizeof(struct ctl_table*), GFP_KERNEL); | |
334 | if (!cpu_idx) | |
335 | return; | |
336 | ||
337 | /* deal with sparse possible map */ | |
338 | for_each_possible_cpu(i) { | |
339 | cpu_idx[i] = e; | |
340 | e++; | |
341 | } | |
342 | } | |
343 | ||
344 | if (!cpumask_available(sd_sysctl_cpus)) { | |
345 | if (!alloc_cpumask_var(&sd_sysctl_cpus, GFP_KERNEL)) | |
346 | return; | |
347 | ||
348 | /* init to possible to not have holes in @cpu_entries */ | |
349 | cpumask_copy(sd_sysctl_cpus, cpu_possible_mask); | |
350 | } | |
351 | ||
352 | for_each_cpu(i, sd_sysctl_cpus) { | |
353 | struct ctl_table *e = cpu_idx[i]; | |
354 | ||
355 | if (e->child) | |
356 | sd_free_ctl_entry(&e->child); | |
357 | ||
358 | if (!e->procname) { | |
359 | snprintf(buf, 32, "cpu%d", i); | |
360 | e->procname = kstrdup(buf, GFP_KERNEL); | |
361 | } | |
362 | e->mode = 0555; | |
363 | e->child = sd_alloc_ctl_cpu_table(i); | |
364 | ||
365 | __cpumask_clear_cpu(i, sd_sysctl_cpus); | |
3866e845 SRRH |
366 | } |
367 | ||
368 | WARN_ON(sd_sysctl_header); | |
369 | sd_sysctl_header = register_sysctl_table(sd_ctl_root); | |
370 | } | |
371 | ||
bbdacdfe PZ |
372 | void dirty_sched_domain_sysctl(int cpu) |
373 | { | |
374 | if (cpumask_available(sd_sysctl_cpus)) | |
375 | __cpumask_set_cpu(cpu, sd_sysctl_cpus); | |
376 | } | |
377 | ||
3866e845 SRRH |
378 | /* may be called multiple times per register */ |
379 | void unregister_sched_domain_sysctl(void) | |
380 | { | |
381 | unregister_sysctl_table(sd_sysctl_header); | |
382 | sd_sysctl_header = NULL; | |
3866e845 SRRH |
383 | } |
384 | #endif /* CONFIG_SYSCTL */ | |
385 | #endif /* CONFIG_SMP */ | |
386 | ||
ff9b48c3 | 387 | #ifdef CONFIG_FAIR_GROUP_SCHED |
5091faa4 | 388 | static void print_cfs_group_stats(struct seq_file *m, int cpu, struct task_group *tg) |
ff9b48c3 BR |
389 | { |
390 | struct sched_entity *se = tg->se[cpu]; | |
ff9b48c3 | 391 | |
97fb7a0a IM |
392 | #define P(F) SEQ_printf(m, " .%-30s: %lld\n", #F, (long long)F) |
393 | #define P_SCHEDSTAT(F) SEQ_printf(m, " .%-30s: %lld\n", #F, (long long)schedstat_val(F)) | |
394 | #define PN(F) SEQ_printf(m, " .%-30s: %lld.%06ld\n", #F, SPLIT_NS((long long)F)) | |
395 | #define PN_SCHEDSTAT(F) SEQ_printf(m, " .%-30s: %lld.%06ld\n", #F, SPLIT_NS((long long)schedstat_val(F))) | |
ff9b48c3 | 396 | |
cd126afe | 397 | if (!se) |
18bf2805 | 398 | return; |
18bf2805 | 399 | |
ff9b48c3 BR |
400 | PN(se->exec_start); |
401 | PN(se->vruntime); | |
402 | PN(se->sum_exec_runtime); | |
97fb7a0a | 403 | |
cb251765 | 404 | if (schedstat_enabled()) { |
4fa8d299 JP |
405 | PN_SCHEDSTAT(se->statistics.wait_start); |
406 | PN_SCHEDSTAT(se->statistics.sleep_start); | |
407 | PN_SCHEDSTAT(se->statistics.block_start); | |
408 | PN_SCHEDSTAT(se->statistics.sleep_max); | |
409 | PN_SCHEDSTAT(se->statistics.block_max); | |
410 | PN_SCHEDSTAT(se->statistics.exec_max); | |
411 | PN_SCHEDSTAT(se->statistics.slice_max); | |
412 | PN_SCHEDSTAT(se->statistics.wait_max); | |
413 | PN_SCHEDSTAT(se->statistics.wait_sum); | |
414 | P_SCHEDSTAT(se->statistics.wait_count); | |
cb251765 | 415 | } |
97fb7a0a | 416 | |
ff9b48c3 | 417 | P(se->load.weight); |
1ea6c46a | 418 | P(se->runnable_weight); |
9d85f21c | 419 | #ifdef CONFIG_SMP |
9d89c257 YD |
420 | P(se->avg.load_avg); |
421 | P(se->avg.util_avg); | |
1ea6c46a | 422 | P(se->avg.runnable_load_avg); |
9d85f21c | 423 | #endif |
4fa8d299 JP |
424 | |
425 | #undef PN_SCHEDSTAT | |
ff9b48c3 | 426 | #undef PN |
4fa8d299 | 427 | #undef P_SCHEDSTAT |
ff9b48c3 BR |
428 | #undef P |
429 | } | |
430 | #endif | |
431 | ||
efe25c2c BR |
432 | #ifdef CONFIG_CGROUP_SCHED |
433 | static char group_path[PATH_MAX]; | |
434 | ||
435 | static char *task_group_path(struct task_group *tg) | |
436 | { | |
8ecedd7a BR |
437 | if (autogroup_path(tg, group_path, PATH_MAX)) |
438 | return group_path; | |
439 | ||
4c737b41 | 440 | cgroup_path(tg->css.cgroup, group_path, PATH_MAX); |
97fb7a0a | 441 | |
4c737b41 | 442 | return group_path; |
efe25c2c BR |
443 | } |
444 | #endif | |
445 | ||
43ae34cb | 446 | static void |
a48da48b | 447 | print_task(struct seq_file *m, struct rq *rq, struct task_struct *p) |
43ae34cb | 448 | { |
20435d84 | 449 | if (rq->curr == p) |
e8c16495 | 450 | SEQ_printf(m, ">R"); |
20435d84 XX |
451 | else |
452 | SEQ_printf(m, " %c", task_state_to_char(p)); | |
43ae34cb | 453 | |
ef83a571 | 454 | SEQ_printf(m, "%15s %5d %9Ld.%06ld %9Ld %5d ", |
fc840914 | 455 | p->comm, task_pid_nr(p), |
ef83a571 | 456 | SPLIT_NS(p->se.vruntime), |
43ae34cb | 457 | (long long)(p->nvcsw + p->nivcsw), |
6f605d83 | 458 | p->prio); |
9c572591 | 459 | |
33d6176e | 460 | SEQ_printf(m, "%9Ld.%06ld %9Ld.%06ld %9Ld.%06ld", |
20e1d486 | 461 | SPLIT_NS(schedstat_val_or_zero(p->se.statistics.wait_sum)), |
33d6176e | 462 | SPLIT_NS(p->se.sum_exec_runtime), |
20e1d486 | 463 | SPLIT_NS(schedstat_val_or_zero(p->se.statistics.sum_sleep_runtime))); |
9c572591 | 464 | |
b32e86b4 | 465 | #ifdef CONFIG_NUMA_BALANCING |
e3d24d0a | 466 | SEQ_printf(m, " %d %d", task_node(p), task_numa_group_id(p)); |
b32e86b4 | 467 | #endif |
efe25c2c BR |
468 | #ifdef CONFIG_CGROUP_SCHED |
469 | SEQ_printf(m, " %s", task_group_path(task_group(p))); | |
470 | #endif | |
d19ca308 | 471 | |
d19ca308 | 472 | SEQ_printf(m, "\n"); |
43ae34cb IM |
473 | } |
474 | ||
a48da48b | 475 | static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu) |
43ae34cb IM |
476 | { |
477 | struct task_struct *g, *p; | |
478 | ||
e9ca2670 JL |
479 | SEQ_printf(m, "\n"); |
480 | SEQ_printf(m, "runnable tasks:\n"); | |
481 | SEQ_printf(m, " S task PID tree-key switches prio" | |
482 | " wait-time sum-exec sum-sleep\n"); | |
483 | SEQ_printf(m, "-------------------------------------------------------" | |
484 | "----------------------------------------------------\n"); | |
43ae34cb | 485 | |
5bd96ab6 | 486 | rcu_read_lock(); |
d38e83c7 | 487 | for_each_process_thread(g, p) { |
b32e86b4 | 488 | if (task_cpu(p) != rq_cpu) |
43ae34cb IM |
489 | continue; |
490 | ||
a48da48b | 491 | print_task(m, rq, p); |
d38e83c7 | 492 | } |
5bd96ab6 | 493 | rcu_read_unlock(); |
43ae34cb IM |
494 | } |
495 | ||
5cef9eca | 496 | void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq) |
43ae34cb | 497 | { |
86d9560c IM |
498 | s64 MIN_vruntime = -1, min_vruntime, max_vruntime = -1, |
499 | spread, rq0_min_vruntime, spread0; | |
348ec61e | 500 | struct rq *rq = cpu_rq(cpu); |
67e12eac IM |
501 | struct sched_entity *last; |
502 | unsigned long flags; | |
503 | ||
efe25c2c | 504 | #ifdef CONFIG_FAIR_GROUP_SCHED |
e9ca2670 JL |
505 | SEQ_printf(m, "\n"); |
506 | SEQ_printf(m, "cfs_rq[%d]:%s\n", cpu, task_group_path(cfs_rq->tg)); | |
efe25c2c | 507 | #else |
e9ca2670 JL |
508 | SEQ_printf(m, "\n"); |
509 | SEQ_printf(m, "cfs_rq[%d]:\n", cpu); | |
efe25c2c | 510 | #endif |
ef83a571 IM |
511 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "exec_clock", |
512 | SPLIT_NS(cfs_rq->exec_clock)); | |
67e12eac | 513 | |
05fa785c | 514 | raw_spin_lock_irqsave(&rq->lock, flags); |
bfb06889 | 515 | if (rb_first_cached(&cfs_rq->tasks_timeline)) |
ac53db59 | 516 | MIN_vruntime = (__pick_first_entity(cfs_rq))->vruntime; |
67e12eac IM |
517 | last = __pick_last_entity(cfs_rq); |
518 | if (last) | |
519 | max_vruntime = last->vruntime; | |
5ac5c4d6 | 520 | min_vruntime = cfs_rq->min_vruntime; |
348ec61e | 521 | rq0_min_vruntime = cpu_rq(0)->cfs.min_vruntime; |
05fa785c | 522 | raw_spin_unlock_irqrestore(&rq->lock, flags); |
ef83a571 IM |
523 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "MIN_vruntime", |
524 | SPLIT_NS(MIN_vruntime)); | |
525 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "min_vruntime", | |
526 | SPLIT_NS(min_vruntime)); | |
527 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "max_vruntime", | |
528 | SPLIT_NS(max_vruntime)); | |
67e12eac | 529 | spread = max_vruntime - MIN_vruntime; |
ef83a571 IM |
530 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "spread", |
531 | SPLIT_NS(spread)); | |
86d9560c | 532 | spread0 = min_vruntime - rq0_min_vruntime; |
ef83a571 IM |
533 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "spread0", |
534 | SPLIT_NS(spread0)); | |
5ac5c4d6 | 535 | SEQ_printf(m, " .%-30s: %d\n", "nr_spread_over", |
ddc97297 | 536 | cfs_rq->nr_spread_over); |
c82513e5 | 537 | SEQ_printf(m, " .%-30s: %d\n", "nr_running", cfs_rq->nr_running); |
2069dd75 | 538 | SEQ_printf(m, " .%-30s: %ld\n", "load", cfs_rq->load.weight); |
c09595f6 | 539 | #ifdef CONFIG_SMP |
1ea6c46a | 540 | SEQ_printf(m, " .%-30s: %ld\n", "runnable_weight", cfs_rq->runnable_weight); |
9d89c257 YD |
541 | SEQ_printf(m, " .%-30s: %lu\n", "load_avg", |
542 | cfs_rq->avg.load_avg); | |
13962234 | 543 | SEQ_printf(m, " .%-30s: %lu\n", "runnable_load_avg", |
1ea6c46a | 544 | cfs_rq->avg.runnable_load_avg); |
9d89c257 YD |
545 | SEQ_printf(m, " .%-30s: %lu\n", "util_avg", |
546 | cfs_rq->avg.util_avg); | |
7f65ea42 PB |
547 | SEQ_printf(m, " .%-30s: %u\n", "util_est_enqueued", |
548 | cfs_rq->avg.util_est.enqueued); | |
2a2f5d4e PZ |
549 | SEQ_printf(m, " .%-30s: %ld\n", "removed.load_avg", |
550 | cfs_rq->removed.load_avg); | |
551 | SEQ_printf(m, " .%-30s: %ld\n", "removed.util_avg", | |
552 | cfs_rq->removed.util_avg); | |
0e2d2aaa PZ |
553 | SEQ_printf(m, " .%-30s: %ld\n", "removed.runnable_sum", |
554 | cfs_rq->removed.runnable_sum); | |
333bb864 | 555 | #ifdef CONFIG_FAIR_GROUP_SCHED |
9d89c257 YD |
556 | SEQ_printf(m, " .%-30s: %lu\n", "tg_load_avg_contrib", |
557 | cfs_rq->tg_load_avg_contrib); | |
333bb864 AS |
558 | SEQ_printf(m, " .%-30s: %ld\n", "tg_load_avg", |
559 | atomic_long_read(&cfs_rq->tg->load_avg)); | |
c09595f6 | 560 | #endif |
333bb864 | 561 | #endif |
f9f9ffc2 | 562 | #ifdef CONFIG_CFS_BANDWIDTH |
f9f9ffc2 BS |
563 | SEQ_printf(m, " .%-30s: %d\n", "throttled", |
564 | cfs_rq->throttled); | |
565 | SEQ_printf(m, " .%-30s: %d\n", "throttle_count", | |
566 | cfs_rq->throttle_count); | |
567 | #endif | |
2069dd75 | 568 | |
333bb864 | 569 | #ifdef CONFIG_FAIR_GROUP_SCHED |
ff9b48c3 | 570 | print_cfs_group_stats(m, cpu, cfs_rq->tg); |
c09595f6 | 571 | #endif |
43ae34cb IM |
572 | } |
573 | ||
ada18de2 PZ |
574 | void print_rt_rq(struct seq_file *m, int cpu, struct rt_rq *rt_rq) |
575 | { | |
efe25c2c | 576 | #ifdef CONFIG_RT_GROUP_SCHED |
e9ca2670 JL |
577 | SEQ_printf(m, "\n"); |
578 | SEQ_printf(m, "rt_rq[%d]:%s\n", cpu, task_group_path(rt_rq->tg)); | |
efe25c2c | 579 | #else |
e9ca2670 JL |
580 | SEQ_printf(m, "\n"); |
581 | SEQ_printf(m, "rt_rq[%d]:\n", cpu); | |
efe25c2c | 582 | #endif |
ada18de2 PZ |
583 | |
584 | #define P(x) \ | |
585 | SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rt_rq->x)) | |
48365b38 DBO |
586 | #define PU(x) \ |
587 | SEQ_printf(m, " .%-30s: %lu\n", #x, (unsigned long)(rt_rq->x)) | |
ada18de2 PZ |
588 | #define PN(x) \ |
589 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rt_rq->x)) | |
590 | ||
48365b38 DBO |
591 | PU(rt_nr_running); |
592 | #ifdef CONFIG_SMP | |
593 | PU(rt_nr_migratory); | |
594 | #endif | |
ada18de2 PZ |
595 | P(rt_throttled); |
596 | PN(rt_time); | |
597 | PN(rt_runtime); | |
598 | ||
599 | #undef PN | |
48365b38 | 600 | #undef PU |
ada18de2 PZ |
601 | #undef P |
602 | } | |
603 | ||
acb32132 WL |
604 | void print_dl_rq(struct seq_file *m, int cpu, struct dl_rq *dl_rq) |
605 | { | |
ef477183 SRRH |
606 | struct dl_bw *dl_bw; |
607 | ||
e9ca2670 JL |
608 | SEQ_printf(m, "\n"); |
609 | SEQ_printf(m, "dl_rq[%d]:\n", cpu); | |
48365b38 DBO |
610 | |
611 | #define PU(x) \ | |
612 | SEQ_printf(m, " .%-30s: %lu\n", #x, (unsigned long)(dl_rq->x)) | |
613 | ||
614 | PU(dl_nr_running); | |
ef477183 | 615 | #ifdef CONFIG_SMP |
48365b38 | 616 | PU(dl_nr_migratory); |
ef477183 SRRH |
617 | dl_bw = &cpu_rq(cpu)->rd->dl_bw; |
618 | #else | |
619 | dl_bw = &dl_rq->dl_bw; | |
620 | #endif | |
621 | SEQ_printf(m, " .%-30s: %lld\n", "dl_bw->bw", dl_bw->bw); | |
622 | SEQ_printf(m, " .%-30s: %lld\n", "dl_bw->total_bw", dl_bw->total_bw); | |
48365b38 DBO |
623 | |
624 | #undef PU | |
acb32132 WL |
625 | } |
626 | ||
a48da48b | 627 | static void print_cpu(struct seq_file *m, int cpu) |
43ae34cb | 628 | { |
348ec61e | 629 | struct rq *rq = cpu_rq(cpu); |
efe25c2c | 630 | unsigned long flags; |
43ae34cb IM |
631 | |
632 | #ifdef CONFIG_X86 | |
633 | { | |
634 | unsigned int freq = cpu_khz ? : 1; | |
635 | ||
bbbfeac9 | 636 | SEQ_printf(m, "cpu#%d, %u.%03u MHz\n", |
43ae34cb IM |
637 | cpu, freq / 1000, (freq % 1000)); |
638 | } | |
639 | #else | |
bbbfeac9 | 640 | SEQ_printf(m, "cpu#%d\n", cpu); |
43ae34cb IM |
641 | #endif |
642 | ||
13e099d2 PZ |
643 | #define P(x) \ |
644 | do { \ | |
645 | if (sizeof(rq->x) == 4) \ | |
646 | SEQ_printf(m, " .%-30s: %ld\n", #x, (long)(rq->x)); \ | |
647 | else \ | |
648 | SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rq->x));\ | |
649 | } while (0) | |
650 | ||
ef83a571 IM |
651 | #define PN(x) \ |
652 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rq->x)) | |
43ae34cb IM |
653 | |
654 | P(nr_running); | |
655 | SEQ_printf(m, " .%-30s: %lu\n", "load", | |
495eca49 | 656 | rq->load.weight); |
43ae34cb IM |
657 | P(nr_switches); |
658 | P(nr_load_updates); | |
659 | P(nr_uninterruptible); | |
ef83a571 | 660 | PN(next_balance); |
fc840914 | 661 | SEQ_printf(m, " .%-30s: %ld\n", "curr->pid", (long)(task_pid_nr(rq->curr))); |
ef83a571 | 662 | PN(clock); |
5a537597 | 663 | PN(clock_task); |
43ae34cb IM |
664 | P(cpu_load[0]); |
665 | P(cpu_load[1]); | |
666 | P(cpu_load[2]); | |
667 | P(cpu_load[3]); | |
668 | P(cpu_load[4]); | |
669 | #undef P | |
ef83a571 | 670 | #undef PN |
43ae34cb | 671 | |
1b9508f6 | 672 | #ifdef CONFIG_SMP |
db6ea2fb | 673 | #define P64(n) SEQ_printf(m, " .%-30s: %Ld\n", #n, rq->n); |
1b9508f6 | 674 | P64(avg_idle); |
37e6bae8 | 675 | P64(max_idle_balance_cost); |
db6ea2fb | 676 | #undef P64 |
1b9508f6 | 677 | #endif |
5ac5c4d6 | 678 | |
4fa8d299 | 679 | #define P(n) SEQ_printf(m, " .%-30s: %d\n", #n, schedstat_val(rq->n)); |
cb251765 MG |
680 | if (schedstat_enabled()) { |
681 | P(yld_count); | |
682 | P(sched_count); | |
683 | P(sched_goidle); | |
684 | P(ttwu_count); | |
685 | P(ttwu_local); | |
686 | } | |
5ac5c4d6 | 687 | #undef P |
4fa8d299 | 688 | |
efe25c2c | 689 | spin_lock_irqsave(&sched_debug_lock, flags); |
5cef9eca | 690 | print_cfs_stats(m, cpu); |
ada18de2 | 691 | print_rt_stats(m, cpu); |
acb32132 | 692 | print_dl_stats(m, cpu); |
43ae34cb | 693 | |
a48da48b | 694 | print_rq(m, rq, cpu); |
efe25c2c | 695 | spin_unlock_irqrestore(&sched_debug_lock, flags); |
bbbfeac9 | 696 | SEQ_printf(m, "\n"); |
43ae34cb IM |
697 | } |
698 | ||
1983a922 CE |
699 | static const char *sched_tunable_scaling_names[] = { |
700 | "none", | |
701 | "logaritmic", | |
702 | "linear" | |
703 | }; | |
704 | ||
bbbfeac9 | 705 | static void sched_debug_header(struct seq_file *m) |
43ae34cb | 706 | { |
5bb6b1ea PZ |
707 | u64 ktime, sched_clk, cpu_clk; |
708 | unsigned long flags; | |
43ae34cb | 709 | |
5bb6b1ea PZ |
710 | local_irq_save(flags); |
711 | ktime = ktime_to_ns(ktime_get()); | |
712 | sched_clk = sched_clock(); | |
713 | cpu_clk = local_clock(); | |
714 | local_irq_restore(flags); | |
715 | ||
b32e86b4 | 716 | SEQ_printf(m, "Sched Debug Version: v0.11, %s %.*s\n", |
43ae34cb IM |
717 | init_utsname()->release, |
718 | (int)strcspn(init_utsname()->version, " "), | |
719 | init_utsname()->version); | |
720 | ||
5bb6b1ea PZ |
721 | #define P(x) \ |
722 | SEQ_printf(m, "%-40s: %Ld\n", #x, (long long)(x)) | |
723 | #define PN(x) \ | |
724 | SEQ_printf(m, "%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x)) | |
725 | PN(ktime); | |
726 | PN(sched_clk); | |
727 | PN(cpu_clk); | |
728 | P(jiffies); | |
729 | #ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK | |
35af99e6 | 730 | P(sched_clock_stable()); |
5bb6b1ea PZ |
731 | #endif |
732 | #undef PN | |
733 | #undef P | |
734 | ||
735 | SEQ_printf(m, "\n"); | |
736 | SEQ_printf(m, "sysctl_sched\n"); | |
43ae34cb | 737 | |
1aa4731e | 738 | #define P(x) \ |
d822cece | 739 | SEQ_printf(m, " .%-40s: %Ld\n", #x, (long long)(x)) |
1aa4731e | 740 | #define PN(x) \ |
d822cece | 741 | SEQ_printf(m, " .%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x)) |
1aa4731e | 742 | PN(sysctl_sched_latency); |
b2be5e96 | 743 | PN(sysctl_sched_min_granularity); |
1aa4731e | 744 | PN(sysctl_sched_wakeup_granularity); |
eebef746 | 745 | P(sysctl_sched_child_runs_first); |
1aa4731e IM |
746 | P(sysctl_sched_features); |
747 | #undef PN | |
748 | #undef P | |
749 | ||
bbbfeac9 NZ |
750 | SEQ_printf(m, " .%-40s: %d (%s)\n", |
751 | "sysctl_sched_tunable_scaling", | |
1983a922 CE |
752 | sysctl_sched_tunable_scaling, |
753 | sched_tunable_scaling_names[sysctl_sched_tunable_scaling]); | |
bbbfeac9 NZ |
754 | SEQ_printf(m, "\n"); |
755 | } | |
1983a922 | 756 | |
bbbfeac9 NZ |
757 | static int sched_debug_show(struct seq_file *m, void *v) |
758 | { | |
759 | int cpu = (unsigned long)(v - 2); | |
43ae34cb | 760 | |
bbbfeac9 NZ |
761 | if (cpu != -1) |
762 | print_cpu(m, cpu); | |
763 | else | |
764 | sched_debug_header(m); | |
43ae34cb IM |
765 | |
766 | return 0; | |
767 | } | |
768 | ||
029632fb | 769 | void sysrq_sched_debug_show(void) |
43ae34cb | 770 | { |
bbbfeac9 NZ |
771 | int cpu; |
772 | ||
773 | sched_debug_header(NULL); | |
774 | for_each_online_cpu(cpu) | |
775 | print_cpu(NULL, cpu); | |
776 | ||
777 | } | |
778 | ||
779 | /* | |
780 | * This itererator needs some explanation. | |
781 | * It returns 1 for the header position. | |
97fb7a0a IM |
782 | * This means 2 is CPU 0. |
783 | * In a hotplugged system some CPUs, including CPU 0, may be missing so we have | |
784 | * to use cpumask_* to iterate over the CPUs. | |
bbbfeac9 NZ |
785 | */ |
786 | static void *sched_debug_start(struct seq_file *file, loff_t *offset) | |
787 | { | |
788 | unsigned long n = *offset; | |
789 | ||
790 | if (n == 0) | |
791 | return (void *) 1; | |
792 | ||
793 | n--; | |
794 | ||
795 | if (n > 0) | |
796 | n = cpumask_next(n - 1, cpu_online_mask); | |
797 | else | |
798 | n = cpumask_first(cpu_online_mask); | |
799 | ||
800 | *offset = n + 1; | |
801 | ||
802 | if (n < nr_cpu_ids) | |
803 | return (void *)(unsigned long)(n + 2); | |
97fb7a0a | 804 | |
bbbfeac9 NZ |
805 | return NULL; |
806 | } | |
807 | ||
808 | static void *sched_debug_next(struct seq_file *file, void *data, loff_t *offset) | |
809 | { | |
810 | (*offset)++; | |
811 | return sched_debug_start(file, offset); | |
812 | } | |
813 | ||
814 | static void sched_debug_stop(struct seq_file *file, void *data) | |
815 | { | |
816 | } | |
817 | ||
818 | static const struct seq_operations sched_debug_sops = { | |
97fb7a0a IM |
819 | .start = sched_debug_start, |
820 | .next = sched_debug_next, | |
821 | .stop = sched_debug_stop, | |
822 | .show = sched_debug_show, | |
bbbfeac9 NZ |
823 | }; |
824 | ||
43ae34cb IM |
825 | static int __init init_sched_debug_procfs(void) |
826 | { | |
fddda2b7 | 827 | if (!proc_create_seq("sched_debug", 0444, NULL, &sched_debug_sops)) |
43ae34cb | 828 | return -ENOMEM; |
43ae34cb IM |
829 | return 0; |
830 | } | |
831 | ||
832 | __initcall(init_sched_debug_procfs); | |
833 | ||
97fb7a0a IM |
834 | #define __P(F) SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)F) |
835 | #define P(F) SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)p->F) | |
836 | #define __PN(F) SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)F)) | |
837 | #define PN(F) SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F)) | |
b32e86b4 IM |
838 | |
839 | ||
397f2378 SD |
840 | #ifdef CONFIG_NUMA_BALANCING |
841 | void print_numa_stats(struct seq_file *m, int node, unsigned long tsf, | |
842 | unsigned long tpf, unsigned long gsf, unsigned long gpf) | |
843 | { | |
844 | SEQ_printf(m, "numa_faults node=%d ", node); | |
67d9f6c2 SD |
845 | SEQ_printf(m, "task_private=%lu task_shared=%lu ", tpf, tsf); |
846 | SEQ_printf(m, "group_private=%lu group_shared=%lu\n", gpf, gsf); | |
397f2378 SD |
847 | } |
848 | #endif | |
849 | ||
850 | ||
b32e86b4 IM |
851 | static void sched_show_numa(struct task_struct *p, struct seq_file *m) |
852 | { | |
853 | #ifdef CONFIG_NUMA_BALANCING | |
854 | struct mempolicy *pol; | |
b32e86b4 IM |
855 | |
856 | if (p->mm) | |
857 | P(mm->numa_scan_seq); | |
858 | ||
859 | task_lock(p); | |
860 | pol = p->mempolicy; | |
861 | if (pol && !(pol->flags & MPOL_F_MORON)) | |
862 | pol = NULL; | |
863 | mpol_get(pol); | |
864 | task_unlock(p); | |
865 | ||
397f2378 SD |
866 | P(numa_pages_migrated); |
867 | P(numa_preferred_nid); | |
868 | P(total_numa_faults); | |
869 | SEQ_printf(m, "current_node=%d, numa_group_id=%d\n", | |
870 | task_node(p), task_numa_group_id(p)); | |
871 | show_numa_stats(p, m); | |
b32e86b4 IM |
872 | mpol_put(pol); |
873 | #endif | |
874 | } | |
875 | ||
74dc3384 AS |
876 | void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns, |
877 | struct seq_file *m) | |
43ae34cb | 878 | { |
cc367732 | 879 | unsigned long nr_switches; |
43ae34cb | 880 | |
74dc3384 | 881 | SEQ_printf(m, "%s (%d, #threads: %d)\n", p->comm, task_pid_nr_ns(p, ns), |
5089a976 | 882 | get_nr_threads(p)); |
2d92f227 | 883 | SEQ_printf(m, |
add332a1 KB |
884 | "---------------------------------------------------------" |
885 | "----------\n"); | |
cc367732 | 886 | #define __P(F) \ |
add332a1 | 887 | SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)F) |
43ae34cb | 888 | #define P(F) \ |
add332a1 | 889 | SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)p->F) |
4fa8d299 JP |
890 | #define P_SCHEDSTAT(F) \ |
891 | SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)schedstat_val(p->F)) | |
cc367732 | 892 | #define __PN(F) \ |
add332a1 | 893 | SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)F)) |
ef83a571 | 894 | #define PN(F) \ |
add332a1 | 895 | SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F)) |
4fa8d299 JP |
896 | #define PN_SCHEDSTAT(F) \ |
897 | SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)schedstat_val(p->F))) | |
43ae34cb | 898 | |
ef83a571 IM |
899 | PN(se.exec_start); |
900 | PN(se.vruntime); | |
901 | PN(se.sum_exec_runtime); | |
6cfb0d5d | 902 | |
cc367732 IM |
903 | nr_switches = p->nvcsw + p->nivcsw; |
904 | ||
cc367732 | 905 | P(se.nr_migrations); |
cc367732 | 906 | |
cb251765 | 907 | if (schedstat_enabled()) { |
cc367732 IM |
908 | u64 avg_atom, avg_per_cpu; |
909 | ||
4fa8d299 JP |
910 | PN_SCHEDSTAT(se.statistics.sum_sleep_runtime); |
911 | PN_SCHEDSTAT(se.statistics.wait_start); | |
912 | PN_SCHEDSTAT(se.statistics.sleep_start); | |
913 | PN_SCHEDSTAT(se.statistics.block_start); | |
914 | PN_SCHEDSTAT(se.statistics.sleep_max); | |
915 | PN_SCHEDSTAT(se.statistics.block_max); | |
916 | PN_SCHEDSTAT(se.statistics.exec_max); | |
917 | PN_SCHEDSTAT(se.statistics.slice_max); | |
918 | PN_SCHEDSTAT(se.statistics.wait_max); | |
919 | PN_SCHEDSTAT(se.statistics.wait_sum); | |
920 | P_SCHEDSTAT(se.statistics.wait_count); | |
921 | PN_SCHEDSTAT(se.statistics.iowait_sum); | |
922 | P_SCHEDSTAT(se.statistics.iowait_count); | |
923 | P_SCHEDSTAT(se.statistics.nr_migrations_cold); | |
924 | P_SCHEDSTAT(se.statistics.nr_failed_migrations_affine); | |
925 | P_SCHEDSTAT(se.statistics.nr_failed_migrations_running); | |
926 | P_SCHEDSTAT(se.statistics.nr_failed_migrations_hot); | |
927 | P_SCHEDSTAT(se.statistics.nr_forced_migrations); | |
928 | P_SCHEDSTAT(se.statistics.nr_wakeups); | |
929 | P_SCHEDSTAT(se.statistics.nr_wakeups_sync); | |
930 | P_SCHEDSTAT(se.statistics.nr_wakeups_migrate); | |
931 | P_SCHEDSTAT(se.statistics.nr_wakeups_local); | |
932 | P_SCHEDSTAT(se.statistics.nr_wakeups_remote); | |
933 | P_SCHEDSTAT(se.statistics.nr_wakeups_affine); | |
934 | P_SCHEDSTAT(se.statistics.nr_wakeups_affine_attempts); | |
935 | P_SCHEDSTAT(se.statistics.nr_wakeups_passive); | |
936 | P_SCHEDSTAT(se.statistics.nr_wakeups_idle); | |
cb251765 | 937 | |
cc367732 IM |
938 | avg_atom = p->se.sum_exec_runtime; |
939 | if (nr_switches) | |
b0ab99e7 | 940 | avg_atom = div64_ul(avg_atom, nr_switches); |
cc367732 IM |
941 | else |
942 | avg_atom = -1LL; | |
943 | ||
944 | avg_per_cpu = p->se.sum_exec_runtime; | |
c1a89740 | 945 | if (p->se.nr_migrations) { |
6f6d6a1a RZ |
946 | avg_per_cpu = div64_u64(avg_per_cpu, |
947 | p->se.nr_migrations); | |
c1a89740 | 948 | } else { |
cc367732 | 949 | avg_per_cpu = -1LL; |
c1a89740 | 950 | } |
cc367732 IM |
951 | |
952 | __PN(avg_atom); | |
953 | __PN(avg_per_cpu); | |
954 | } | |
4fa8d299 | 955 | |
cc367732 | 956 | __P(nr_switches); |
add332a1 | 957 | SEQ_printf(m, "%-45s:%21Ld\n", |
cc367732 | 958 | "nr_voluntary_switches", (long long)p->nvcsw); |
add332a1 | 959 | SEQ_printf(m, "%-45s:%21Ld\n", |
cc367732 IM |
960 | "nr_involuntary_switches", (long long)p->nivcsw); |
961 | ||
43ae34cb | 962 | P(se.load.weight); |
1ea6c46a | 963 | P(se.runnable_weight); |
333bb864 | 964 | #ifdef CONFIG_SMP |
9d89c257 | 965 | P(se.avg.load_sum); |
1ea6c46a | 966 | P(se.avg.runnable_load_sum); |
9d89c257 YD |
967 | P(se.avg.util_sum); |
968 | P(se.avg.load_avg); | |
1ea6c46a | 969 | P(se.avg.runnable_load_avg); |
9d89c257 YD |
970 | P(se.avg.util_avg); |
971 | P(se.avg.last_update_time); | |
7f65ea42 PB |
972 | P(se.avg.util_est.ewma); |
973 | P(se.avg.util_est.enqueued); | |
939fd731 | 974 | #endif |
43ae34cb IM |
975 | P(policy); |
976 | P(prio); | |
1da1843f | 977 | if (task_has_dl_policy(p)) { |
59f8c298 TC |
978 | P(dl.runtime); |
979 | P(dl.deadline); | |
980 | } | |
4fa8d299 | 981 | #undef PN_SCHEDSTAT |
ef83a571 | 982 | #undef PN |
cc367732 | 983 | #undef __PN |
4fa8d299 | 984 | #undef P_SCHEDSTAT |
cc367732 IM |
985 | #undef P |
986 | #undef __P | |
43ae34cb IM |
987 | |
988 | { | |
29d7b90c | 989 | unsigned int this_cpu = raw_smp_processor_id(); |
43ae34cb IM |
990 | u64 t0, t1; |
991 | ||
29d7b90c IM |
992 | t0 = cpu_clock(this_cpu); |
993 | t1 = cpu_clock(this_cpu); | |
add332a1 | 994 | SEQ_printf(m, "%-45s:%21Ld\n", |
43ae34cb IM |
995 | "clock-delta", (long long)(t1-t0)); |
996 | } | |
b32e86b4 IM |
997 | |
998 | sched_show_numa(p, m); | |
43ae34cb IM |
999 | } |
1000 | ||
1001 | void proc_sched_set_task(struct task_struct *p) | |
1002 | { | |
6cfb0d5d | 1003 | #ifdef CONFIG_SCHEDSTATS |
41acab88 | 1004 | memset(&p->se.statistics, 0, sizeof(p->se.statistics)); |
6cfb0d5d | 1005 | #endif |
43ae34cb | 1006 | } |