Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 1 | /* |
Peter Zijlstra | 391e43d | 2011-11-15 17:14:39 +0100 | [diff] [blame] | 2 | * kernel/sched/debug.c |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 3 | * |
| 4 | * Print the CFS rbtree |
| 5 | * |
| 6 | * Copyright(C) 2007, Red Hat, Inc., Ingo Molnar |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/proc_fs.h> |
| 14 | #include <linux/sched.h> |
| 15 | #include <linux/seq_file.h> |
| 16 | #include <linux/kallsyms.h> |
| 17 | #include <linux/utsname.h> |
Ingo Molnar | b32e86b | 2013-10-07 11:29:30 +0100 | [diff] [blame] | 18 | #include <linux/mempolicy.h> |
Steven Rostedt (Red Hat) | d6ca41d | 2016-02-22 16:26:50 -0500 | [diff] [blame] | 19 | #include <linux/debugfs.h> |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 20 | |
Peter Zijlstra | 029632f | 2011-10-25 10:00:11 +0200 | [diff] [blame] | 21 | #include "sched.h" |
Joonwoo Park | f7d6cd4 | 2017-01-17 15:19:43 -0800 | [diff] [blame] | 22 | #include "walt.h" |
Peter Zijlstra | 029632f | 2011-10-25 10:00:11 +0200 | [diff] [blame] | 23 | |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 24 | static DEFINE_SPINLOCK(sched_debug_lock); |
| 25 | |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 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 | |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 38 | /* |
| 39 | * Ease the printing of nsec fields: |
| 40 | */ |
Ingo Molnar | 90b2628 | 2007-12-30 17:24:35 +0100 | [diff] [blame] | 41 | static long long nsec_high(unsigned long long nsec) |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 42 | { |
Ingo Molnar | 90b2628 | 2007-12-30 17:24:35 +0100 | [diff] [blame] | 43 | if ((long long)nsec < 0) { |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 44 | nsec = -nsec; |
| 45 | do_div(nsec, 1000000); |
| 46 | return -nsec; |
| 47 | } |
| 48 | do_div(nsec, 1000000); |
| 49 | |
| 50 | return nsec; |
| 51 | } |
| 52 | |
Ingo Molnar | 90b2628 | 2007-12-30 17:24:35 +0100 | [diff] [blame] | 53 | static unsigned long nsec_low(unsigned long long nsec) |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 54 | { |
Ingo Molnar | 90b2628 | 2007-12-30 17:24:35 +0100 | [diff] [blame] | 55 | if ((long long)nsec < 0) |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 56 | nsec = -nsec; |
| 57 | |
| 58 | return do_div(nsec, 1000000); |
| 59 | } |
| 60 | |
| 61 | #define SPLIT_NS(x) nsec_high(x), nsec_low(x) |
| 62 | |
Steven Rostedt (Red Hat) | d6ca41d | 2016-02-22 16:26:50 -0500 | [diff] [blame] | 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 | |
| 184 | static __init int sched_init_debug(void) |
| 185 | { |
| 186 | debugfs_create_file("sched_features", 0644, NULL, NULL, |
| 187 | &sched_feat_fops); |
| 188 | |
| 189 | return 0; |
| 190 | } |
| 191 | late_initcall(sched_init_debug); |
| 192 | |
Steven Rostedt (Red Hat) | 3866e84 | 2016-02-22 16:26:51 -0500 | [diff] [blame] | 193 | #ifdef CONFIG_SMP |
| 194 | |
| 195 | #ifdef CONFIG_SYSCTL |
| 196 | |
| 197 | static struct ctl_table sd_ctl_dir[] = { |
| 198 | { |
| 199 | .procname = "sched_domain", |
| 200 | .mode = 0555, |
| 201 | }, |
| 202 | {} |
| 203 | }; |
| 204 | |
| 205 | static struct ctl_table sd_ctl_root[] = { |
| 206 | { |
| 207 | .procname = "kernel", |
| 208 | .mode = 0555, |
| 209 | .child = sd_ctl_dir, |
| 210 | }, |
| 211 | {} |
| 212 | }; |
| 213 | |
| 214 | static struct ctl_table *sd_alloc_ctl_entry(int n) |
| 215 | { |
| 216 | struct ctl_table *entry = |
| 217 | kcalloc(n, sizeof(struct ctl_table), GFP_KERNEL); |
| 218 | |
| 219 | return entry; |
| 220 | } |
| 221 | |
| 222 | static void sd_free_ctl_entry(struct ctl_table **tablep) |
| 223 | { |
| 224 | struct ctl_table *entry; |
| 225 | |
| 226 | /* |
| 227 | * In the intermediate directories, both the child directory and |
| 228 | * procname are dynamically allocated and could fail but the mode |
| 229 | * will always be set. In the lowest directory the names are |
| 230 | * static strings and all have proc handlers. |
| 231 | */ |
| 232 | for (entry = *tablep; entry->mode; entry++) { |
| 233 | if (entry->child) |
| 234 | sd_free_ctl_entry(&entry->child); |
| 235 | if (entry->proc_handler == NULL) |
| 236 | kfree(entry->procname); |
| 237 | } |
| 238 | |
| 239 | kfree(*tablep); |
| 240 | *tablep = NULL; |
| 241 | } |
| 242 | |
| 243 | static int min_load_idx = 0; |
| 244 | static int max_load_idx = CPU_LOAD_IDX_MAX-1; |
| 245 | |
| 246 | static void |
| 247 | set_table_entry(struct ctl_table *entry, |
| 248 | const char *procname, void *data, int maxlen, |
| 249 | umode_t mode, proc_handler *proc_handler, |
| 250 | bool load_idx) |
| 251 | { |
| 252 | entry->procname = procname; |
| 253 | entry->data = data; |
| 254 | entry->maxlen = maxlen; |
| 255 | entry->mode = mode; |
| 256 | entry->proc_handler = proc_handler; |
| 257 | |
| 258 | if (load_idx) { |
| 259 | entry->extra1 = &min_load_idx; |
| 260 | entry->extra2 = &max_load_idx; |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | static struct ctl_table * |
Dietmar Eggemann | 262200a | 2014-11-14 16:25:50 +0000 | [diff] [blame] | 265 | sd_alloc_ctl_energy_table(struct sched_group_energy *sge) |
| 266 | { |
| 267 | struct ctl_table *table = sd_alloc_ctl_entry(5); |
| 268 | |
| 269 | if (table == NULL) |
| 270 | return NULL; |
| 271 | |
| 272 | set_table_entry(&table[0], "nr_idle_states", &sge->nr_idle_states, |
Chris Redpath | c3282d1 | 2018-11-21 20:38:47 +0000 | [diff] [blame] | 273 | sizeof(int), 0444, proc_dointvec_minmax, false); |
Dietmar Eggemann | 262200a | 2014-11-14 16:25:50 +0000 | [diff] [blame] | 274 | set_table_entry(&table[1], "idle_states", &sge->idle_states[0].power, |
Chris Redpath | c3282d1 | 2018-11-21 20:38:47 +0000 | [diff] [blame] | 275 | sge->nr_idle_states*sizeof(struct idle_state), 0444, |
Dietmar Eggemann | 262200a | 2014-11-14 16:25:50 +0000 | [diff] [blame] | 276 | proc_doulongvec_minmax, false); |
| 277 | set_table_entry(&table[2], "nr_cap_states", &sge->nr_cap_states, |
Chris Redpath | c3282d1 | 2018-11-21 20:38:47 +0000 | [diff] [blame] | 278 | sizeof(int), 0444, proc_dointvec_minmax, false); |
Dietmar Eggemann | 262200a | 2014-11-14 16:25:50 +0000 | [diff] [blame] | 279 | set_table_entry(&table[3], "cap_states", &sge->cap_states[0].cap, |
Chris Redpath | c3282d1 | 2018-11-21 20:38:47 +0000 | [diff] [blame] | 280 | sge->nr_cap_states*sizeof(struct capacity_state), 0444, |
Dietmar Eggemann | 262200a | 2014-11-14 16:25:50 +0000 | [diff] [blame] | 281 | proc_doulongvec_minmax, false); |
| 282 | |
| 283 | return table; |
| 284 | } |
| 285 | |
| 286 | static struct ctl_table * |
| 287 | sd_alloc_ctl_group_table(struct sched_group *sg) |
| 288 | { |
| 289 | struct ctl_table *table = sd_alloc_ctl_entry(2); |
| 290 | |
| 291 | if (table == NULL) |
| 292 | return NULL; |
| 293 | |
| 294 | table->procname = kstrdup("energy", GFP_KERNEL); |
| 295 | table->mode = 0555; |
| 296 | table->child = sd_alloc_ctl_energy_table((struct sched_group_energy *)sg->sge); |
| 297 | |
| 298 | return table; |
| 299 | } |
| 300 | |
| 301 | static struct ctl_table * |
Steven Rostedt (Red Hat) | 3866e84 | 2016-02-22 16:26:51 -0500 | [diff] [blame] | 302 | sd_alloc_ctl_domain_table(struct sched_domain *sd) |
| 303 | { |
Dietmar Eggemann | 262200a | 2014-11-14 16:25:50 +0000 | [diff] [blame] | 304 | struct ctl_table *table; |
| 305 | unsigned int nr_entries = 14; |
| 306 | |
| 307 | int i = 0; |
| 308 | struct sched_group *sg = sd->groups; |
| 309 | |
| 310 | if (sg->sge) { |
| 311 | int nr_sgs = 0; |
| 312 | |
| 313 | do {} while (nr_sgs++, sg = sg->next, sg != sd->groups); |
| 314 | |
| 315 | nr_entries += nr_sgs; |
| 316 | } |
| 317 | |
| 318 | table = sd_alloc_ctl_entry(nr_entries); |
Steven Rostedt (Red Hat) | 3866e84 | 2016-02-22 16:26:51 -0500 | [diff] [blame] | 319 | |
| 320 | if (table == NULL) |
| 321 | return NULL; |
| 322 | |
| 323 | set_table_entry(&table[0], "min_interval", &sd->min_interval, |
| 324 | sizeof(long), 0644, proc_doulongvec_minmax, false); |
| 325 | set_table_entry(&table[1], "max_interval", &sd->max_interval, |
| 326 | sizeof(long), 0644, proc_doulongvec_minmax, false); |
| 327 | set_table_entry(&table[2], "busy_idx", &sd->busy_idx, |
| 328 | sizeof(int), 0644, proc_dointvec_minmax, true); |
| 329 | set_table_entry(&table[3], "idle_idx", &sd->idle_idx, |
| 330 | sizeof(int), 0644, proc_dointvec_minmax, true); |
| 331 | set_table_entry(&table[4], "newidle_idx", &sd->newidle_idx, |
| 332 | sizeof(int), 0644, proc_dointvec_minmax, true); |
| 333 | set_table_entry(&table[5], "wake_idx", &sd->wake_idx, |
| 334 | sizeof(int), 0644, proc_dointvec_minmax, true); |
| 335 | set_table_entry(&table[6], "forkexec_idx", &sd->forkexec_idx, |
| 336 | sizeof(int), 0644, proc_dointvec_minmax, true); |
| 337 | set_table_entry(&table[7], "busy_factor", &sd->busy_factor, |
| 338 | sizeof(int), 0644, proc_dointvec_minmax, false); |
| 339 | set_table_entry(&table[8], "imbalance_pct", &sd->imbalance_pct, |
| 340 | sizeof(int), 0644, proc_dointvec_minmax, false); |
| 341 | set_table_entry(&table[9], "cache_nice_tries", |
| 342 | &sd->cache_nice_tries, |
| 343 | sizeof(int), 0644, proc_dointvec_minmax, false); |
| 344 | set_table_entry(&table[10], "flags", &sd->flags, |
| 345 | sizeof(int), 0644, proc_dointvec_minmax, false); |
| 346 | set_table_entry(&table[11], "max_newidle_lb_cost", |
| 347 | &sd->max_newidle_lb_cost, |
| 348 | sizeof(long), 0644, proc_doulongvec_minmax, false); |
| 349 | set_table_entry(&table[12], "name", sd->name, |
| 350 | CORENAME_MAX_SIZE, 0444, proc_dostring, false); |
Dietmar Eggemann | 262200a | 2014-11-14 16:25:50 +0000 | [diff] [blame] | 351 | sg = sd->groups; |
| 352 | if (sg->sge) { |
| 353 | char buf[32]; |
| 354 | struct ctl_table *entry = &table[13]; |
| 355 | |
| 356 | do { |
| 357 | snprintf(buf, 32, "group%d", i); |
| 358 | entry->procname = kstrdup(buf, GFP_KERNEL); |
| 359 | entry->mode = 0555; |
| 360 | entry->child = sd_alloc_ctl_group_table(sg); |
| 361 | } while (entry++, i++, sg = sg->next, sg != sd->groups); |
| 362 | } |
| 363 | /* &table[nr_entries-1] is terminator */ |
Steven Rostedt (Red Hat) | 3866e84 | 2016-02-22 16:26:51 -0500 | [diff] [blame] | 364 | |
| 365 | return table; |
| 366 | } |
| 367 | |
| 368 | static struct ctl_table *sd_alloc_ctl_cpu_table(int cpu) |
| 369 | { |
| 370 | struct ctl_table *entry, *table; |
| 371 | struct sched_domain *sd; |
| 372 | int domain_num = 0, i; |
| 373 | char buf[32]; |
| 374 | |
| 375 | for_each_domain(cpu, sd) |
| 376 | domain_num++; |
| 377 | entry = table = sd_alloc_ctl_entry(domain_num + 1); |
| 378 | if (table == NULL) |
| 379 | return NULL; |
| 380 | |
| 381 | i = 0; |
| 382 | for_each_domain(cpu, sd) { |
| 383 | snprintf(buf, 32, "domain%d", i); |
| 384 | entry->procname = kstrdup(buf, GFP_KERNEL); |
| 385 | entry->mode = 0555; |
| 386 | entry->child = sd_alloc_ctl_domain_table(sd); |
| 387 | entry++; |
| 388 | i++; |
| 389 | } |
| 390 | return table; |
| 391 | } |
| 392 | |
| 393 | static struct ctl_table_header *sd_sysctl_header; |
| 394 | void register_sched_domain_sysctl(void) |
| 395 | { |
| 396 | int i, cpu_num = num_possible_cpus(); |
| 397 | struct ctl_table *entry = sd_alloc_ctl_entry(cpu_num + 1); |
| 398 | char buf[32]; |
| 399 | |
| 400 | WARN_ON(sd_ctl_dir[0].child); |
| 401 | sd_ctl_dir[0].child = entry; |
| 402 | |
| 403 | if (entry == NULL) |
| 404 | return; |
| 405 | |
| 406 | for_each_possible_cpu(i) { |
| 407 | snprintf(buf, 32, "cpu%d", i); |
| 408 | entry->procname = kstrdup(buf, GFP_KERNEL); |
| 409 | entry->mode = 0555; |
| 410 | entry->child = sd_alloc_ctl_cpu_table(i); |
| 411 | entry++; |
| 412 | } |
| 413 | |
| 414 | WARN_ON(sd_sysctl_header); |
| 415 | sd_sysctl_header = register_sysctl_table(sd_ctl_root); |
| 416 | } |
| 417 | |
| 418 | /* may be called multiple times per register */ |
| 419 | void unregister_sched_domain_sysctl(void) |
| 420 | { |
| 421 | unregister_sysctl_table(sd_sysctl_header); |
| 422 | sd_sysctl_header = NULL; |
| 423 | if (sd_ctl_dir[0].child) |
| 424 | sd_free_ctl_entry(&sd_ctl_dir[0].child); |
| 425 | } |
| 426 | #endif /* CONFIG_SYSCTL */ |
| 427 | #endif /* CONFIG_SMP */ |
| 428 | |
Bharata B Rao | ff9b48c | 2008-11-10 21:34:09 +0530 | [diff] [blame] | 429 | #ifdef CONFIG_FAIR_GROUP_SCHED |
Mike Galbraith | 5091faa | 2010-11-30 14:18:03 +0100 | [diff] [blame] | 430 | static void print_cfs_group_stats(struct seq_file *m, int cpu, struct task_group *tg) |
Bharata B Rao | ff9b48c | 2008-11-10 21:34:09 +0530 | [diff] [blame] | 431 | { |
| 432 | struct sched_entity *se = tg->se[cpu]; |
Bharata B Rao | ff9b48c | 2008-11-10 21:34:09 +0530 | [diff] [blame] | 433 | |
| 434 | #define P(F) \ |
| 435 | SEQ_printf(m, " .%-30s: %lld\n", #F, (long long)F) |
Josh Poimboeuf | 4fa8d299 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 436 | #define P_SCHEDSTAT(F) \ |
| 437 | SEQ_printf(m, " .%-30s: %lld\n", #F, (long long)schedstat_val(F)) |
Bharata B Rao | ff9b48c | 2008-11-10 21:34:09 +0530 | [diff] [blame] | 438 | #define PN(F) \ |
| 439 | SEQ_printf(m, " .%-30s: %lld.%06ld\n", #F, SPLIT_NS((long long)F)) |
Josh Poimboeuf | 4fa8d299 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 440 | #define PN_SCHEDSTAT(F) \ |
| 441 | SEQ_printf(m, " .%-30s: %lld.%06ld\n", #F, SPLIT_NS((long long)schedstat_val(F))) |
Bharata B Rao | ff9b48c | 2008-11-10 21:34:09 +0530 | [diff] [blame] | 442 | |
Yuyang Du | cd126af | 2015-07-15 08:04:36 +0800 | [diff] [blame] | 443 | if (!se) |
Ben Segall | 18bf280 | 2012-10-04 12:51:20 +0200 | [diff] [blame] | 444 | return; |
Ben Segall | 18bf280 | 2012-10-04 12:51:20 +0200 | [diff] [blame] | 445 | |
Bharata B Rao | ff9b48c | 2008-11-10 21:34:09 +0530 | [diff] [blame] | 446 | PN(se->exec_start); |
| 447 | PN(se->vruntime); |
| 448 | PN(se->sum_exec_runtime); |
Mel Gorman | cb25176 | 2016-02-05 09:08:36 +0000 | [diff] [blame] | 449 | if (schedstat_enabled()) { |
Josh Poimboeuf | 4fa8d299 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 450 | PN_SCHEDSTAT(se->statistics.wait_start); |
| 451 | PN_SCHEDSTAT(se->statistics.sleep_start); |
| 452 | PN_SCHEDSTAT(se->statistics.block_start); |
| 453 | PN_SCHEDSTAT(se->statistics.sleep_max); |
| 454 | PN_SCHEDSTAT(se->statistics.block_max); |
| 455 | PN_SCHEDSTAT(se->statistics.exec_max); |
| 456 | PN_SCHEDSTAT(se->statistics.slice_max); |
| 457 | PN_SCHEDSTAT(se->statistics.wait_max); |
| 458 | PN_SCHEDSTAT(se->statistics.wait_sum); |
| 459 | P_SCHEDSTAT(se->statistics.wait_count); |
Mel Gorman | cb25176 | 2016-02-05 09:08:36 +0000 | [diff] [blame] | 460 | } |
Bharata B Rao | ff9b48c | 2008-11-10 21:34:09 +0530 | [diff] [blame] | 461 | P(se->load.weight); |
Paul Turner | 9d85f21 | 2012-10-04 13:18:29 +0200 | [diff] [blame] | 462 | #ifdef CONFIG_SMP |
Yuyang Du | 9d89c25 | 2015-07-15 08:04:37 +0800 | [diff] [blame] | 463 | P(se->avg.load_avg); |
| 464 | P(se->avg.util_avg); |
Paul Turner | 9d85f21 | 2012-10-04 13:18:29 +0200 | [diff] [blame] | 465 | #endif |
Josh Poimboeuf | 4fa8d299 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 466 | |
| 467 | #undef PN_SCHEDSTAT |
Bharata B Rao | ff9b48c | 2008-11-10 21:34:09 +0530 | [diff] [blame] | 468 | #undef PN |
Josh Poimboeuf | 4fa8d299 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 469 | #undef P_SCHEDSTAT |
Bharata B Rao | ff9b48c | 2008-11-10 21:34:09 +0530 | [diff] [blame] | 470 | #undef P |
| 471 | } |
| 472 | #endif |
| 473 | |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 474 | #ifdef CONFIG_CGROUP_SCHED |
| 475 | static char group_path[PATH_MAX]; |
| 476 | |
| 477 | static char *task_group_path(struct task_group *tg) |
| 478 | { |
Bharata B Rao | 8ecedd7 | 2011-01-11 15:42:57 +0530 | [diff] [blame] | 479 | if (autogroup_path(tg, group_path, PATH_MAX)) |
| 480 | return group_path; |
| 481 | |
Tejun Heo | 4c737b4 | 2016-08-10 11:23:44 -0400 | [diff] [blame] | 482 | cgroup_path(tg->css.cgroup, group_path, PATH_MAX); |
| 483 | return group_path; |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 484 | } |
| 485 | #endif |
| 486 | |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 487 | static void |
Ingo Molnar | a48da48 | 2007-08-09 11:16:51 +0200 | [diff] [blame] | 488 | print_task(struct seq_file *m, struct rq *rq, struct task_struct *p) |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 489 | { |
| 490 | if (rq->curr == p) |
| 491 | SEQ_printf(m, "R"); |
| 492 | else |
| 493 | SEQ_printf(m, " "); |
| 494 | |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 495 | SEQ_printf(m, "%15s %5d %9Ld.%06ld %9Ld %5d ", |
Peter Zijlstra | fc84091 | 2013-09-09 13:01:41 +0200 | [diff] [blame] | 496 | p->comm, task_pid_nr(p), |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 497 | SPLIT_NS(p->se.vruntime), |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 498 | (long long)(p->nvcsw + p->nivcsw), |
Al Viro | 6f605d8 | 2007-08-06 04:26:59 +0100 | [diff] [blame] | 499 | p->prio); |
Josh Poimboeuf | 9c57259 | 2016-06-03 17:58:40 -0500 | [diff] [blame] | 500 | |
Srikar Dronamraju | 33d6176 | 2015-06-08 13:40:39 +0530 | [diff] [blame] | 501 | SEQ_printf(m, "%9Ld.%06ld %9Ld.%06ld %9Ld.%06ld", |
Josh Poimboeuf | 20e1d48 | 2016-06-17 12:43:25 -0500 | [diff] [blame] | 502 | SPLIT_NS(schedstat_val_or_zero(p->se.statistics.wait_sum)), |
Srikar Dronamraju | 33d6176 | 2015-06-08 13:40:39 +0530 | [diff] [blame] | 503 | SPLIT_NS(p->se.sum_exec_runtime), |
Josh Poimboeuf | 20e1d48 | 2016-06-17 12:43:25 -0500 | [diff] [blame] | 504 | SPLIT_NS(schedstat_val_or_zero(p->se.statistics.sum_sleep_runtime))); |
Josh Poimboeuf | 9c57259 | 2016-06-03 17:58:40 -0500 | [diff] [blame] | 505 | |
Ingo Molnar | b32e86b | 2013-10-07 11:29:30 +0100 | [diff] [blame] | 506 | #ifdef CONFIG_NUMA_BALANCING |
Srikar Dronamraju | e3d24d0 | 2015-06-25 22:51:42 +0530 | [diff] [blame] | 507 | SEQ_printf(m, " %d %d", task_node(p), task_numa_group_id(p)); |
Ingo Molnar | b32e86b | 2013-10-07 11:29:30 +0100 | [diff] [blame] | 508 | #endif |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 509 | #ifdef CONFIG_CGROUP_SCHED |
| 510 | SEQ_printf(m, " %s", task_group_path(task_group(p))); |
| 511 | #endif |
Peter Zijlstra | d19ca30 | 2008-04-19 19:45:00 +0200 | [diff] [blame] | 512 | |
Peter Zijlstra | d19ca30 | 2008-04-19 19:45:00 +0200 | [diff] [blame] | 513 | SEQ_printf(m, "\n"); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 514 | } |
| 515 | |
Ingo Molnar | a48da48 | 2007-08-09 11:16:51 +0200 | [diff] [blame] | 516 | static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu) |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 517 | { |
| 518 | struct task_struct *g, *p; |
| 519 | |
| 520 | SEQ_printf(m, |
| 521 | "\nrunnable tasks:\n" |
Mike Galbraith | c86da3a | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 522 | " task PID tree-key switches prio" |
Srikar Dronamraju | c5f3ab1 | 2015-06-08 13:40:40 +0530 | [diff] [blame] | 523 | " wait-time sum-exec sum-sleep\n" |
Ingo Molnar | 1a75b94 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 524 | "------------------------------------------------------" |
Mike Galbraith | c86da3a | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 525 | "----------------------------------------------------\n"); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 526 | |
Oleg Nesterov | 5bd96ab | 2014-09-21 21:33:41 +0200 | [diff] [blame] | 527 | rcu_read_lock(); |
Oleg Nesterov | d38e83c | 2014-08-13 21:19:56 +0200 | [diff] [blame] | 528 | for_each_process_thread(g, p) { |
Ingo Molnar | b32e86b | 2013-10-07 11:29:30 +0100 | [diff] [blame] | 529 | if (task_cpu(p) != rq_cpu) |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 530 | continue; |
| 531 | |
Ingo Molnar | a48da48 | 2007-08-09 11:16:51 +0200 | [diff] [blame] | 532 | print_task(m, rq, p); |
Oleg Nesterov | d38e83c | 2014-08-13 21:19:56 +0200 | [diff] [blame] | 533 | } |
Oleg Nesterov | 5bd96ab | 2014-09-21 21:33:41 +0200 | [diff] [blame] | 534 | rcu_read_unlock(); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 535 | } |
| 536 | |
Ingo Molnar | 5cef9ec | 2007-08-09 11:16:47 +0200 | [diff] [blame] | 537 | void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq) |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 538 | { |
Ingo Molnar | 86d9560 | 2007-10-15 17:00:06 +0200 | [diff] [blame] | 539 | s64 MIN_vruntime = -1, min_vruntime, max_vruntime = -1, |
| 540 | spread, rq0_min_vruntime, spread0; |
Hitoshi Mitake | 348ec61 | 2009-06-17 22:20:55 +0900 | [diff] [blame] | 541 | struct rq *rq = cpu_rq(cpu); |
Ingo Molnar | 67e12ea | 2007-10-15 17:00:05 +0200 | [diff] [blame] | 542 | struct sched_entity *last; |
| 543 | unsigned long flags; |
| 544 | |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 545 | #ifdef CONFIG_FAIR_GROUP_SCHED |
| 546 | SEQ_printf(m, "\ncfs_rq[%d]:%s\n", cpu, task_group_path(cfs_rq->tg)); |
| 547 | #else |
Peter Zijlstra | ada18de | 2008-06-19 14:22:24 +0200 | [diff] [blame] | 548 | SEQ_printf(m, "\ncfs_rq[%d]:\n", cpu); |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 549 | #endif |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 550 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "exec_clock", |
| 551 | SPLIT_NS(cfs_rq->exec_clock)); |
Ingo Molnar | 67e12ea | 2007-10-15 17:00:05 +0200 | [diff] [blame] | 552 | |
Thomas Gleixner | 05fa785 | 2009-11-17 14:28:38 +0100 | [diff] [blame] | 553 | raw_spin_lock_irqsave(&rq->lock, flags); |
Ingo Molnar | 67e12ea | 2007-10-15 17:00:05 +0200 | [diff] [blame] | 554 | if (cfs_rq->rb_leftmost) |
Rik van Riel | ac53db5 | 2011-02-01 09:51:03 -0500 | [diff] [blame] | 555 | MIN_vruntime = (__pick_first_entity(cfs_rq))->vruntime; |
Ingo Molnar | 67e12ea | 2007-10-15 17:00:05 +0200 | [diff] [blame] | 556 | last = __pick_last_entity(cfs_rq); |
| 557 | if (last) |
| 558 | max_vruntime = last->vruntime; |
Peter Zijlstra | 5ac5c4d | 2008-11-10 10:46:32 +0100 | [diff] [blame] | 559 | min_vruntime = cfs_rq->min_vruntime; |
Hitoshi Mitake | 348ec61 | 2009-06-17 22:20:55 +0900 | [diff] [blame] | 560 | rq0_min_vruntime = cpu_rq(0)->cfs.min_vruntime; |
Thomas Gleixner | 05fa785 | 2009-11-17 14:28:38 +0100 | [diff] [blame] | 561 | raw_spin_unlock_irqrestore(&rq->lock, flags); |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 562 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "MIN_vruntime", |
| 563 | SPLIT_NS(MIN_vruntime)); |
| 564 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "min_vruntime", |
| 565 | SPLIT_NS(min_vruntime)); |
| 566 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "max_vruntime", |
| 567 | SPLIT_NS(max_vruntime)); |
Ingo Molnar | 67e12ea | 2007-10-15 17:00:05 +0200 | [diff] [blame] | 568 | spread = max_vruntime - MIN_vruntime; |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 569 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "spread", |
| 570 | SPLIT_NS(spread)); |
Ingo Molnar | 86d9560 | 2007-10-15 17:00:06 +0200 | [diff] [blame] | 571 | spread0 = min_vruntime - rq0_min_vruntime; |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 572 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "spread0", |
| 573 | SPLIT_NS(spread0)); |
Peter Zijlstra | 5ac5c4d | 2008-11-10 10:46:32 +0100 | [diff] [blame] | 574 | SEQ_printf(m, " .%-30s: %d\n", "nr_spread_over", |
Peter Zijlstra | ddc9729 | 2007-10-15 17:00:10 +0200 | [diff] [blame] | 575 | cfs_rq->nr_spread_over); |
Peter Zijlstra | c82513e | 2012-04-26 13:12:27 +0200 | [diff] [blame] | 576 | SEQ_printf(m, " .%-30s: %d\n", "nr_running", cfs_rq->nr_running); |
Peter Zijlstra | 2069dd7 | 2010-11-15 15:47:00 -0800 | [diff] [blame] | 577 | SEQ_printf(m, " .%-30s: %ld\n", "load", cfs_rq->load.weight); |
Peter Zijlstra | c09595f | 2008-06-27 13:41:14 +0200 | [diff] [blame] | 578 | #ifdef CONFIG_SMP |
Yuyang Du | 9d89c25 | 2015-07-15 08:04:37 +0800 | [diff] [blame] | 579 | SEQ_printf(m, " .%-30s: %lu\n", "load_avg", |
| 580 | cfs_rq->avg.load_avg); |
Yuyang Du | 1396223 | 2015-07-15 08:04:41 +0800 | [diff] [blame] | 581 | SEQ_printf(m, " .%-30s: %lu\n", "runnable_load_avg", |
| 582 | cfs_rq->runnable_load_avg); |
Yuyang Du | 9d89c25 | 2015-07-15 08:04:37 +0800 | [diff] [blame] | 583 | SEQ_printf(m, " .%-30s: %lu\n", "util_avg", |
| 584 | cfs_rq->avg.util_avg); |
| 585 | SEQ_printf(m, " .%-30s: %ld\n", "removed_load_avg", |
| 586 | atomic_long_read(&cfs_rq->removed_load_avg)); |
| 587 | SEQ_printf(m, " .%-30s: %ld\n", "removed_util_avg", |
| 588 | atomic_long_read(&cfs_rq->removed_util_avg)); |
Alex Shi | 333bb86 | 2013-06-28 19:10:35 +0800 | [diff] [blame] | 589 | #ifdef CONFIG_FAIR_GROUP_SCHED |
Yuyang Du | 9d89c25 | 2015-07-15 08:04:37 +0800 | [diff] [blame] | 590 | SEQ_printf(m, " .%-30s: %lu\n", "tg_load_avg_contrib", |
| 591 | cfs_rq->tg_load_avg_contrib); |
Alex Shi | 333bb86 | 2013-06-28 19:10:35 +0800 | [diff] [blame] | 592 | SEQ_printf(m, " .%-30s: %ld\n", "tg_load_avg", |
| 593 | atomic_long_read(&cfs_rq->tg->load_avg)); |
Peter Zijlstra | c09595f | 2008-06-27 13:41:14 +0200 | [diff] [blame] | 594 | #endif |
Alex Shi | 333bb86 | 2013-06-28 19:10:35 +0800 | [diff] [blame] | 595 | #endif |
Ben Segall | f9f9ffc | 2013-10-16 11:16:32 -0700 | [diff] [blame] | 596 | #ifdef CONFIG_CFS_BANDWIDTH |
Ben Segall | f9f9ffc | 2013-10-16 11:16:32 -0700 | [diff] [blame] | 597 | SEQ_printf(m, " .%-30s: %d\n", "throttled", |
| 598 | cfs_rq->throttled); |
| 599 | SEQ_printf(m, " .%-30s: %d\n", "throttle_count", |
| 600 | cfs_rq->throttle_count); |
Syed Rameez Mustafa | dddcab7 | 2016-09-07 16:18:27 -0700 | [diff] [blame] | 601 | SEQ_printf(m, " .%-30s: %d\n", "runtime_enabled", |
| 602 | cfs_rq->runtime_enabled); |
Ben Segall | f9f9ffc | 2013-10-16 11:16:32 -0700 | [diff] [blame] | 603 | #endif |
Peter Zijlstra | 2069dd7 | 2010-11-15 15:47:00 -0800 | [diff] [blame] | 604 | |
Alex Shi | 333bb86 | 2013-06-28 19:10:35 +0800 | [diff] [blame] | 605 | #ifdef CONFIG_FAIR_GROUP_SCHED |
Bharata B Rao | ff9b48c | 2008-11-10 21:34:09 +0530 | [diff] [blame] | 606 | print_cfs_group_stats(m, cpu, cfs_rq->tg); |
Peter Zijlstra | c09595f | 2008-06-27 13:41:14 +0200 | [diff] [blame] | 607 | #endif |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 608 | } |
| 609 | |
Peter Zijlstra | ada18de | 2008-06-19 14:22:24 +0200 | [diff] [blame] | 610 | void print_rt_rq(struct seq_file *m, int cpu, struct rt_rq *rt_rq) |
| 611 | { |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 612 | #ifdef CONFIG_RT_GROUP_SCHED |
| 613 | SEQ_printf(m, "\nrt_rq[%d]:%s\n", cpu, task_group_path(rt_rq->tg)); |
| 614 | #else |
Peter Zijlstra | ada18de | 2008-06-19 14:22:24 +0200 | [diff] [blame] | 615 | SEQ_printf(m, "\nrt_rq[%d]:\n", cpu); |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 616 | #endif |
Peter Zijlstra | ada18de | 2008-06-19 14:22:24 +0200 | [diff] [blame] | 617 | |
| 618 | #define P(x) \ |
| 619 | SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rt_rq->x)) |
| 620 | #define PN(x) \ |
| 621 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rt_rq->x)) |
| 622 | |
| 623 | P(rt_nr_running); |
| 624 | P(rt_throttled); |
| 625 | PN(rt_time); |
| 626 | PN(rt_runtime); |
| 627 | |
| 628 | #undef PN |
| 629 | #undef P |
| 630 | } |
| 631 | |
Wanpeng Li | acb3213 | 2014-10-31 06:39:33 +0800 | [diff] [blame] | 632 | void print_dl_rq(struct seq_file *m, int cpu, struct dl_rq *dl_rq) |
| 633 | { |
Steven Rostedt (Red Hat) | ef47718 | 2016-02-22 16:26:52 -0500 | [diff] [blame] | 634 | struct dl_bw *dl_bw; |
| 635 | |
Wanpeng Li | acb3213 | 2014-10-31 06:39:33 +0800 | [diff] [blame] | 636 | SEQ_printf(m, "\ndl_rq[%d]:\n", cpu); |
| 637 | SEQ_printf(m, " .%-30s: %ld\n", "dl_nr_running", dl_rq->dl_nr_running); |
Steven Rostedt (Red Hat) | ef47718 | 2016-02-22 16:26:52 -0500 | [diff] [blame] | 638 | #ifdef CONFIG_SMP |
| 639 | dl_bw = &cpu_rq(cpu)->rd->dl_bw; |
| 640 | #else |
| 641 | dl_bw = &dl_rq->dl_bw; |
| 642 | #endif |
| 643 | SEQ_printf(m, " .%-30s: %lld\n", "dl_bw->bw", dl_bw->bw); |
| 644 | SEQ_printf(m, " .%-30s: %lld\n", "dl_bw->total_bw", dl_bw->total_bw); |
Wanpeng Li | acb3213 | 2014-10-31 06:39:33 +0800 | [diff] [blame] | 645 | } |
| 646 | |
Peter Zijlstra | 5bb6b1e | 2010-11-19 21:11:09 +0100 | [diff] [blame] | 647 | extern __read_mostly int sched_clock_running; |
| 648 | |
Ingo Molnar | a48da48 | 2007-08-09 11:16:51 +0200 | [diff] [blame] | 649 | static void print_cpu(struct seq_file *m, int cpu) |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 650 | { |
Hitoshi Mitake | 348ec61 | 2009-06-17 22:20:55 +0900 | [diff] [blame] | 651 | struct rq *rq = cpu_rq(cpu); |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 652 | unsigned long flags; |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 653 | |
| 654 | #ifdef CONFIG_X86 |
| 655 | { |
| 656 | unsigned int freq = cpu_khz ? : 1; |
| 657 | |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 658 | SEQ_printf(m, "cpu#%d, %u.%03u MHz\n", |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 659 | cpu, freq / 1000, (freq % 1000)); |
| 660 | } |
| 661 | #else |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 662 | SEQ_printf(m, "cpu#%d\n", cpu); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 663 | #endif |
| 664 | |
Peter Zijlstra | 13e099d | 2012-05-14 14:34:00 +0200 | [diff] [blame] | 665 | #define P(x) \ |
| 666 | do { \ |
| 667 | if (sizeof(rq->x) == 4) \ |
| 668 | SEQ_printf(m, " .%-30s: %ld\n", #x, (long)(rq->x)); \ |
| 669 | else \ |
| 670 | SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rq->x));\ |
| 671 | } while (0) |
| 672 | |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 673 | #define PN(x) \ |
| 674 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rq->x)) |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 675 | |
| 676 | P(nr_running); |
| 677 | SEQ_printf(m, " .%-30s: %lu\n", "load", |
Dmitry Adamushko | 495eca4 | 2007-10-15 17:00:06 +0200 | [diff] [blame] | 678 | rq->load.weight); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 679 | P(nr_switches); |
| 680 | P(nr_load_updates); |
| 681 | P(nr_uninterruptible); |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 682 | PN(next_balance); |
Peter Zijlstra | fc84091 | 2013-09-09 13:01:41 +0200 | [diff] [blame] | 683 | SEQ_printf(m, " .%-30s: %ld\n", "curr->pid", (long)(task_pid_nr(rq->curr))); |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 684 | PN(clock); |
Peter Zijlstra | 5a53759 | 2015-01-05 11:18:12 +0100 | [diff] [blame] | 685 | PN(clock_task); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 686 | P(cpu_load[0]); |
| 687 | P(cpu_load[1]); |
| 688 | P(cpu_load[2]); |
| 689 | P(cpu_load[3]); |
| 690 | P(cpu_load[4]); |
Syed Rameez Mustafa | dddcab7 | 2016-09-07 16:18:27 -0700 | [diff] [blame] | 691 | #ifdef CONFIG_SMP |
| 692 | P(cpu_capacity); |
| 693 | #endif |
Joonwoo Park | f7d6cd4 | 2017-01-17 15:19:43 -0800 | [diff] [blame] | 694 | #ifdef CONFIG_SCHED_WALT |
Syed Rameez Mustafa | dddcab7 | 2016-09-07 16:18:27 -0700 | [diff] [blame] | 695 | P(cluster->load_scale_factor); |
| 696 | P(cluster->capacity); |
| 697 | P(cluster->max_possible_capacity); |
| 698 | P(cluster->efficiency); |
| 699 | P(cluster->cur_freq); |
| 700 | P(cluster->max_freq); |
| 701 | P(cluster->exec_scale_factor); |
Syed Rameez Mustafa | 20acfe7 | 2017-01-30 09:35:46 +0530 | [diff] [blame] | 702 | #ifdef CONFIG_SCHED_WALT |
Pavankumar Kondeti | 84f72d7 | 2017-07-20 11:00:45 +0530 | [diff] [blame] | 703 | P(walt_stats.nr_big_tasks); |
Joonwoo Park | f7d6cd4 | 2017-01-17 15:19:43 -0800 | [diff] [blame] | 704 | #endif |
Pavankumar Kondeti | 84f72d7 | 2017-07-20 11:00:45 +0530 | [diff] [blame] | 705 | SEQ_printf(m, " .%-30s: %llu\n", "walt_stats.cumulative_runnable_avg", |
| 706 | rq->walt_stats.cumulative_runnable_avg); |
Syed Rameez Mustafa | dddcab7 | 2016-09-07 16:18:27 -0700 | [diff] [blame] | 707 | #endif |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 708 | #undef P |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 709 | #undef PN |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 710 | |
Mike Galbraith | 1b9508f | 2009-11-04 17:53:50 +0100 | [diff] [blame] | 711 | #ifdef CONFIG_SMP |
Wanpeng Li | db6ea2f | 2016-05-03 12:38:25 +0800 | [diff] [blame] | 712 | #define P64(n) SEQ_printf(m, " .%-30s: %Ld\n", #n, rq->n); |
Mike Galbraith | 1b9508f | 2009-11-04 17:53:50 +0100 | [diff] [blame] | 713 | P64(avg_idle); |
Alex Shi | 37e6bae | 2014-01-23 18:39:54 +0800 | [diff] [blame] | 714 | P64(max_idle_balance_cost); |
Wanpeng Li | db6ea2f | 2016-05-03 12:38:25 +0800 | [diff] [blame] | 715 | #undef P64 |
Mike Galbraith | 1b9508f | 2009-11-04 17:53:50 +0100 | [diff] [blame] | 716 | #endif |
Peter Zijlstra | 5ac5c4d | 2008-11-10 10:46:32 +0100 | [diff] [blame] | 717 | |
Josh Poimboeuf | 4fa8d299 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 718 | #define P(n) SEQ_printf(m, " .%-30s: %d\n", #n, schedstat_val(rq->n)); |
Mel Gorman | cb25176 | 2016-02-05 09:08:36 +0000 | [diff] [blame] | 719 | if (schedstat_enabled()) { |
| 720 | P(yld_count); |
| 721 | P(sched_count); |
| 722 | P(sched_goidle); |
| 723 | P(ttwu_count); |
| 724 | P(ttwu_local); |
| 725 | } |
Peter Zijlstra | 5ac5c4d | 2008-11-10 10:46:32 +0100 | [diff] [blame] | 726 | #undef P |
Josh Poimboeuf | 4fa8d299 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 727 | |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 728 | spin_lock_irqsave(&sched_debug_lock, flags); |
Ingo Molnar | 5cef9ec | 2007-08-09 11:16:47 +0200 | [diff] [blame] | 729 | print_cfs_stats(m, cpu); |
Peter Zijlstra | ada18de | 2008-06-19 14:22:24 +0200 | [diff] [blame] | 730 | print_rt_stats(m, cpu); |
Wanpeng Li | acb3213 | 2014-10-31 06:39:33 +0800 | [diff] [blame] | 731 | print_dl_stats(m, cpu); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 732 | |
Ingo Molnar | a48da48 | 2007-08-09 11:16:51 +0200 | [diff] [blame] | 733 | print_rq(m, rq, cpu); |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 734 | spin_unlock_irqrestore(&sched_debug_lock, flags); |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 735 | SEQ_printf(m, "\n"); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 736 | } |
| 737 | |
Christian Ehrhardt | 1983a92 | 2009-11-30 12:16:47 +0100 | [diff] [blame] | 738 | static const char *sched_tunable_scaling_names[] = { |
| 739 | "none", |
| 740 | "logaritmic", |
| 741 | "linear" |
| 742 | }; |
| 743 | |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 744 | static void sched_debug_header(struct seq_file *m) |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 745 | { |
Peter Zijlstra | 5bb6b1e | 2010-11-19 21:11:09 +0100 | [diff] [blame] | 746 | u64 ktime, sched_clk, cpu_clk; |
| 747 | unsigned long flags; |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 748 | |
Peter Zijlstra | 5bb6b1e | 2010-11-19 21:11:09 +0100 | [diff] [blame] | 749 | local_irq_save(flags); |
| 750 | ktime = ktime_to_ns(ktime_get()); |
| 751 | sched_clk = sched_clock(); |
| 752 | cpu_clk = local_clock(); |
| 753 | local_irq_restore(flags); |
| 754 | |
Ingo Molnar | b32e86b | 2013-10-07 11:29:30 +0100 | [diff] [blame] | 755 | SEQ_printf(m, "Sched Debug Version: v0.11, %s %.*s\n", |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 756 | init_utsname()->release, |
| 757 | (int)strcspn(init_utsname()->version, " "), |
| 758 | init_utsname()->version); |
| 759 | |
Peter Zijlstra | 5bb6b1e | 2010-11-19 21:11:09 +0100 | [diff] [blame] | 760 | #define P(x) \ |
| 761 | SEQ_printf(m, "%-40s: %Ld\n", #x, (long long)(x)) |
| 762 | #define PN(x) \ |
| 763 | SEQ_printf(m, "%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x)) |
| 764 | PN(ktime); |
| 765 | PN(sched_clk); |
| 766 | PN(cpu_clk); |
| 767 | P(jiffies); |
| 768 | #ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK |
Peter Zijlstra | 35af99e | 2013-11-28 19:38:42 +0100 | [diff] [blame] | 769 | P(sched_clock_stable()); |
Peter Zijlstra | 5bb6b1e | 2010-11-19 21:11:09 +0100 | [diff] [blame] | 770 | #endif |
| 771 | #undef PN |
| 772 | #undef P |
| 773 | |
| 774 | SEQ_printf(m, "\n"); |
| 775 | SEQ_printf(m, "sysctl_sched\n"); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 776 | |
Ingo Molnar | 1aa4731 | 2007-10-15 17:00:10 +0200 | [diff] [blame] | 777 | #define P(x) \ |
Ingo Molnar | d822cec | 2007-10-15 17:00:10 +0200 | [diff] [blame] | 778 | SEQ_printf(m, " .%-40s: %Ld\n", #x, (long long)(x)) |
Ingo Molnar | 1aa4731 | 2007-10-15 17:00:10 +0200 | [diff] [blame] | 779 | #define PN(x) \ |
Ingo Molnar | d822cec | 2007-10-15 17:00:10 +0200 | [diff] [blame] | 780 | SEQ_printf(m, " .%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x)) |
Ingo Molnar | 1aa4731 | 2007-10-15 17:00:10 +0200 | [diff] [blame] | 781 | PN(sysctl_sched_latency); |
Peter Zijlstra | b2be5e9 | 2007-11-09 22:39:37 +0100 | [diff] [blame] | 782 | PN(sysctl_sched_min_granularity); |
Ingo Molnar | 1aa4731 | 2007-10-15 17:00:10 +0200 | [diff] [blame] | 783 | PN(sysctl_sched_wakeup_granularity); |
Josh Hunt | eebef74 | 2010-07-19 12:31:16 -0700 | [diff] [blame] | 784 | P(sysctl_sched_child_runs_first); |
Ingo Molnar | 1aa4731 | 2007-10-15 17:00:10 +0200 | [diff] [blame] | 785 | P(sysctl_sched_features); |
Joonwoo Park | f7d6cd4 | 2017-01-17 15:19:43 -0800 | [diff] [blame] | 786 | #ifdef CONFIG_SCHED_WALT |
Syed Rameez Mustafa | dddcab7 | 2016-09-07 16:18:27 -0700 | [diff] [blame] | 787 | P(min_capacity); |
| 788 | P(max_capacity); |
| 789 | P(sched_ravg_window); |
Syed Rameez Mustafa | 59b5fb7 | 2016-05-31 16:40:45 -0700 | [diff] [blame] | 790 | P(sched_load_granule); |
Syed Rameez Mustafa | dddcab7 | 2016-09-07 16:18:27 -0700 | [diff] [blame] | 791 | #endif |
Ingo Molnar | 1aa4731 | 2007-10-15 17:00:10 +0200 | [diff] [blame] | 792 | #undef PN |
| 793 | #undef P |
| 794 | |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 795 | SEQ_printf(m, " .%-40s: %d (%s)\n", |
| 796 | "sysctl_sched_tunable_scaling", |
Christian Ehrhardt | 1983a92 | 2009-11-30 12:16:47 +0100 | [diff] [blame] | 797 | sysctl_sched_tunable_scaling, |
| 798 | sched_tunable_scaling_names[sysctl_sched_tunable_scaling]); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 799 | SEQ_printf(m, "\n"); |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 800 | } |
| 801 | |
| 802 | static int sched_debug_show(struct seq_file *m, void *v) |
| 803 | { |
| 804 | int cpu = (unsigned long)(v - 2); |
| 805 | |
| 806 | if (cpu != -1) |
| 807 | print_cpu(m, cpu); |
| 808 | else |
| 809 | sched_debug_header(m); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 810 | |
| 811 | return 0; |
| 812 | } |
| 813 | |
Peter Zijlstra | 029632f | 2011-10-25 10:00:11 +0200 | [diff] [blame] | 814 | void sysrq_sched_debug_show(void) |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 815 | { |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 816 | int cpu; |
| 817 | |
| 818 | sched_debug_header(NULL); |
| 819 | for_each_online_cpu(cpu) |
| 820 | print_cpu(NULL, cpu); |
| 821 | |
| 822 | } |
| 823 | |
| 824 | /* |
| 825 | * This itererator needs some explanation. |
| 826 | * It returns 1 for the header position. |
| 827 | * This means 2 is cpu 0. |
| 828 | * In a hotplugged system some cpus, including cpu 0, may be missing so we have |
| 829 | * to use cpumask_* to iterate over the cpus. |
| 830 | */ |
| 831 | static void *sched_debug_start(struct seq_file *file, loff_t *offset) |
| 832 | { |
| 833 | unsigned long n = *offset; |
| 834 | |
| 835 | if (n == 0) |
| 836 | return (void *) 1; |
| 837 | |
| 838 | n--; |
| 839 | |
| 840 | if (n > 0) |
| 841 | n = cpumask_next(n - 1, cpu_online_mask); |
| 842 | else |
| 843 | n = cpumask_first(cpu_online_mask); |
| 844 | |
| 845 | *offset = n + 1; |
| 846 | |
| 847 | if (n < nr_cpu_ids) |
| 848 | return (void *)(unsigned long)(n + 2); |
| 849 | return NULL; |
| 850 | } |
| 851 | |
| 852 | static void *sched_debug_next(struct seq_file *file, void *data, loff_t *offset) |
| 853 | { |
| 854 | (*offset)++; |
| 855 | return sched_debug_start(file, offset); |
| 856 | } |
| 857 | |
| 858 | static void sched_debug_stop(struct seq_file *file, void *data) |
| 859 | { |
| 860 | } |
| 861 | |
| 862 | static const struct seq_operations sched_debug_sops = { |
| 863 | .start = sched_debug_start, |
| 864 | .next = sched_debug_next, |
| 865 | .stop = sched_debug_stop, |
| 866 | .show = sched_debug_show, |
| 867 | }; |
| 868 | |
| 869 | static int sched_debug_release(struct inode *inode, struct file *file) |
| 870 | { |
| 871 | seq_release(inode, file); |
| 872 | |
| 873 | return 0; |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 874 | } |
| 875 | |
| 876 | static int sched_debug_open(struct inode *inode, struct file *filp) |
| 877 | { |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 878 | int ret = 0; |
| 879 | |
| 880 | ret = seq_open(filp, &sched_debug_sops); |
| 881 | |
| 882 | return ret; |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 883 | } |
| 884 | |
Arjan van de Ven | 0dbee3a | 2007-10-15 17:00:19 +0200 | [diff] [blame] | 885 | static const struct file_operations sched_debug_fops = { |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 886 | .open = sched_debug_open, |
| 887 | .read = seq_read, |
| 888 | .llseek = seq_lseek, |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 889 | .release = sched_debug_release, |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 890 | }; |
| 891 | |
| 892 | static int __init init_sched_debug_procfs(void) |
| 893 | { |
| 894 | struct proc_dir_entry *pe; |
| 895 | |
Li Zefan | a9cf4dd | 2008-10-30 15:23:34 +0800 | [diff] [blame] | 896 | pe = proc_create("sched_debug", 0444, NULL, &sched_debug_fops); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 897 | if (!pe) |
| 898 | return -ENOMEM; |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 899 | return 0; |
| 900 | } |
| 901 | |
| 902 | __initcall(init_sched_debug_procfs); |
| 903 | |
Ingo Molnar | b32e86b | 2013-10-07 11:29:30 +0100 | [diff] [blame] | 904 | #define __P(F) \ |
| 905 | SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)F) |
| 906 | #define P(F) \ |
| 907 | SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)p->F) |
| 908 | #define __PN(F) \ |
| 909 | SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)F)) |
| 910 | #define PN(F) \ |
| 911 | SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F)) |
| 912 | |
| 913 | |
Srikar Dronamraju | 397f237 | 2015-06-25 22:51:43 +0530 | [diff] [blame] | 914 | #ifdef CONFIG_NUMA_BALANCING |
| 915 | void print_numa_stats(struct seq_file *m, int node, unsigned long tsf, |
| 916 | unsigned long tpf, unsigned long gsf, unsigned long gpf) |
| 917 | { |
| 918 | SEQ_printf(m, "numa_faults node=%d ", node); |
| 919 | SEQ_printf(m, "task_private=%lu task_shared=%lu ", tsf, tpf); |
| 920 | SEQ_printf(m, "group_private=%lu group_shared=%lu\n", gsf, gpf); |
| 921 | } |
| 922 | #endif |
| 923 | |
| 924 | |
Ingo Molnar | b32e86b | 2013-10-07 11:29:30 +0100 | [diff] [blame] | 925 | static void sched_show_numa(struct task_struct *p, struct seq_file *m) |
| 926 | { |
| 927 | #ifdef CONFIG_NUMA_BALANCING |
| 928 | struct mempolicy *pol; |
Ingo Molnar | b32e86b | 2013-10-07 11:29:30 +0100 | [diff] [blame] | 929 | |
| 930 | if (p->mm) |
| 931 | P(mm->numa_scan_seq); |
| 932 | |
| 933 | task_lock(p); |
| 934 | pol = p->mempolicy; |
| 935 | if (pol && !(pol->flags & MPOL_F_MORON)) |
| 936 | pol = NULL; |
| 937 | mpol_get(pol); |
| 938 | task_unlock(p); |
| 939 | |
Srikar Dronamraju | 397f237 | 2015-06-25 22:51:43 +0530 | [diff] [blame] | 940 | P(numa_pages_migrated); |
| 941 | P(numa_preferred_nid); |
| 942 | P(total_numa_faults); |
| 943 | SEQ_printf(m, "current_node=%d, numa_group_id=%d\n", |
| 944 | task_node(p), task_numa_group_id(p)); |
| 945 | show_numa_stats(p, m); |
Ingo Molnar | b32e86b | 2013-10-07 11:29:30 +0100 | [diff] [blame] | 946 | mpol_put(pol); |
| 947 | #endif |
| 948 | } |
| 949 | |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 950 | void proc_sched_show_task(struct task_struct *p, struct seq_file *m) |
| 951 | { |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 952 | unsigned long nr_switches; |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 953 | |
Peter Zijlstra | fc84091 | 2013-09-09 13:01:41 +0200 | [diff] [blame] | 954 | SEQ_printf(m, "%s (%d, #threads: %d)\n", p->comm, task_pid_nr(p), |
Oleg Nesterov | 5089a97 | 2010-05-26 14:43:22 -0700 | [diff] [blame] | 955 | get_nr_threads(p)); |
Ingo Molnar | 2d92f22 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 956 | SEQ_printf(m, |
Kamalesh Babulal | add332a | 2013-06-27 22:20:05 +0530 | [diff] [blame] | 957 | "---------------------------------------------------------" |
| 958 | "----------\n"); |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 959 | #define __P(F) \ |
Kamalesh Babulal | add332a | 2013-06-27 22:20:05 +0530 | [diff] [blame] | 960 | SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)F) |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 961 | #define P(F) \ |
Kamalesh Babulal | add332a | 2013-06-27 22:20:05 +0530 | [diff] [blame] | 962 | SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)p->F) |
Josh Poimboeuf | 4fa8d299 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 963 | #define P_SCHEDSTAT(F) \ |
| 964 | SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)schedstat_val(p->F)) |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 965 | #define __PN(F) \ |
Kamalesh Babulal | add332a | 2013-06-27 22:20:05 +0530 | [diff] [blame] | 966 | SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)F)) |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 967 | #define PN(F) \ |
Kamalesh Babulal | add332a | 2013-06-27 22:20:05 +0530 | [diff] [blame] | 968 | SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F)) |
Josh Poimboeuf | 4fa8d299 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 969 | #define PN_SCHEDSTAT(F) \ |
| 970 | SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)schedstat_val(p->F))) |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 971 | |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 972 | PN(se.exec_start); |
| 973 | PN(se.vruntime); |
| 974 | PN(se.sum_exec_runtime); |
Ingo Molnar | 6cfb0d5 | 2007-08-02 17:41:40 +0200 | [diff] [blame] | 975 | |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 976 | nr_switches = p->nvcsw + p->nivcsw; |
| 977 | |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 978 | P(se.nr_migrations); |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 979 | |
Mel Gorman | cb25176 | 2016-02-05 09:08:36 +0000 | [diff] [blame] | 980 | if (schedstat_enabled()) { |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 981 | u64 avg_atom, avg_per_cpu; |
| 982 | |
Josh Poimboeuf | 4fa8d299 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 983 | PN_SCHEDSTAT(se.statistics.sum_sleep_runtime); |
| 984 | PN_SCHEDSTAT(se.statistics.wait_start); |
| 985 | PN_SCHEDSTAT(se.statistics.sleep_start); |
| 986 | PN_SCHEDSTAT(se.statistics.block_start); |
| 987 | PN_SCHEDSTAT(se.statistics.sleep_max); |
| 988 | PN_SCHEDSTAT(se.statistics.block_max); |
| 989 | PN_SCHEDSTAT(se.statistics.exec_max); |
| 990 | PN_SCHEDSTAT(se.statistics.slice_max); |
| 991 | PN_SCHEDSTAT(se.statistics.wait_max); |
| 992 | PN_SCHEDSTAT(se.statistics.wait_sum); |
| 993 | P_SCHEDSTAT(se.statistics.wait_count); |
| 994 | PN_SCHEDSTAT(se.statistics.iowait_sum); |
| 995 | P_SCHEDSTAT(se.statistics.iowait_count); |
| 996 | P_SCHEDSTAT(se.statistics.nr_migrations_cold); |
| 997 | P_SCHEDSTAT(se.statistics.nr_failed_migrations_affine); |
| 998 | P_SCHEDSTAT(se.statistics.nr_failed_migrations_running); |
| 999 | P_SCHEDSTAT(se.statistics.nr_failed_migrations_hot); |
| 1000 | P_SCHEDSTAT(se.statistics.nr_forced_migrations); |
| 1001 | P_SCHEDSTAT(se.statistics.nr_wakeups); |
| 1002 | P_SCHEDSTAT(se.statistics.nr_wakeups_sync); |
| 1003 | P_SCHEDSTAT(se.statistics.nr_wakeups_migrate); |
| 1004 | P_SCHEDSTAT(se.statistics.nr_wakeups_local); |
| 1005 | P_SCHEDSTAT(se.statistics.nr_wakeups_remote); |
| 1006 | P_SCHEDSTAT(se.statistics.nr_wakeups_affine); |
| 1007 | P_SCHEDSTAT(se.statistics.nr_wakeups_affine_attempts); |
| 1008 | P_SCHEDSTAT(se.statistics.nr_wakeups_passive); |
| 1009 | P_SCHEDSTAT(se.statistics.nr_wakeups_idle); |
Dietmar Eggemann | af88a16 | 2017-03-22 18:23:13 +0000 | [diff] [blame] | 1010 | /* eas */ |
| 1011 | /* select_idle_sibling() */ |
| 1012 | P_SCHEDSTAT(se.statistics.nr_wakeups_sis_attempts); |
| 1013 | P_SCHEDSTAT(se.statistics.nr_wakeups_sis_idle); |
| 1014 | P_SCHEDSTAT(se.statistics.nr_wakeups_sis_cache_affine); |
| 1015 | P_SCHEDSTAT(se.statistics.nr_wakeups_sis_suff_cap); |
| 1016 | P_SCHEDSTAT(se.statistics.nr_wakeups_sis_idle_cpu); |
| 1017 | P_SCHEDSTAT(se.statistics.nr_wakeups_sis_count); |
| 1018 | /* select_energy_cpu_brute() */ |
| 1019 | P_SCHEDSTAT(se.statistics.nr_wakeups_secb_attempts); |
| 1020 | P_SCHEDSTAT(se.statistics.nr_wakeups_secb_sync); |
| 1021 | P_SCHEDSTAT(se.statistics.nr_wakeups_secb_idle_bt); |
| 1022 | P_SCHEDSTAT(se.statistics.nr_wakeups_secb_insuff_cap); |
| 1023 | P_SCHEDSTAT(se.statistics.nr_wakeups_secb_no_nrg_sav); |
| 1024 | P_SCHEDSTAT(se.statistics.nr_wakeups_secb_nrg_sav); |
| 1025 | P_SCHEDSTAT(se.statistics.nr_wakeups_secb_count); |
| 1026 | /* find_best_target() */ |
| 1027 | P_SCHEDSTAT(se.statistics.nr_wakeups_fbt_attempts); |
| 1028 | P_SCHEDSTAT(se.statistics.nr_wakeups_fbt_no_cpu); |
| 1029 | P_SCHEDSTAT(se.statistics.nr_wakeups_fbt_no_sd); |
| 1030 | P_SCHEDSTAT(se.statistics.nr_wakeups_fbt_pref_idle); |
| 1031 | P_SCHEDSTAT(se.statistics.nr_wakeups_fbt_count); |
| 1032 | /* cas */ |
| 1033 | /* select_task_rq_fair() */ |
| 1034 | P_SCHEDSTAT(se.statistics.nr_wakeups_cas_attempts); |
| 1035 | P_SCHEDSTAT(se.statistics.nr_wakeups_cas_count); |
| 1036 | |
Puja Gupta | 487dec6 | 2017-06-27 10:13:50 -0700 | [diff] [blame] | 1037 | #ifdef CONFIG_SCHED_WALT |
Syed Rameez Mustafa | dddcab7 | 2016-09-07 16:18:27 -0700 | [diff] [blame] | 1038 | P(ravg.demand); |
| 1039 | #endif |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 1040 | avg_atom = p->se.sum_exec_runtime; |
| 1041 | if (nr_switches) |
Mateusz Guzik | b0ab99e | 2014-06-14 15:00:09 +0200 | [diff] [blame] | 1042 | avg_atom = div64_ul(avg_atom, nr_switches); |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 1043 | else |
| 1044 | avg_atom = -1LL; |
| 1045 | |
| 1046 | avg_per_cpu = p->se.sum_exec_runtime; |
Ingo Molnar | c1a8974 | 2007-11-28 15:52:56 +0100 | [diff] [blame] | 1047 | if (p->se.nr_migrations) { |
Roman Zippel | 6f6d6a1 | 2008-05-01 04:34:28 -0700 | [diff] [blame] | 1048 | avg_per_cpu = div64_u64(avg_per_cpu, |
| 1049 | p->se.nr_migrations); |
Ingo Molnar | c1a8974 | 2007-11-28 15:52:56 +0100 | [diff] [blame] | 1050 | } else { |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 1051 | avg_per_cpu = -1LL; |
Ingo Molnar | c1a8974 | 2007-11-28 15:52:56 +0100 | [diff] [blame] | 1052 | } |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 1053 | |
| 1054 | __PN(avg_atom); |
| 1055 | __PN(avg_per_cpu); |
| 1056 | } |
Josh Poimboeuf | 4fa8d299 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 1057 | |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 1058 | __P(nr_switches); |
Kamalesh Babulal | add332a | 2013-06-27 22:20:05 +0530 | [diff] [blame] | 1059 | SEQ_printf(m, "%-45s:%21Ld\n", |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 1060 | "nr_voluntary_switches", (long long)p->nvcsw); |
Kamalesh Babulal | add332a | 2013-06-27 22:20:05 +0530 | [diff] [blame] | 1061 | SEQ_printf(m, "%-45s:%21Ld\n", |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 1062 | "nr_involuntary_switches", (long long)p->nivcsw); |
| 1063 | |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 1064 | P(se.load.weight); |
Alex Shi | 333bb86 | 2013-06-28 19:10:35 +0800 | [diff] [blame] | 1065 | #ifdef CONFIG_SMP |
Yuyang Du | 9d89c25 | 2015-07-15 08:04:37 +0800 | [diff] [blame] | 1066 | P(se.avg.load_sum); |
| 1067 | P(se.avg.util_sum); |
| 1068 | P(se.avg.load_avg); |
| 1069 | P(se.avg.util_avg); |
| 1070 | P(se.avg.last_update_time); |
Kamalesh Babulal | 939fd73 | 2013-06-25 13:33:36 +0530 | [diff] [blame] | 1071 | #endif |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 1072 | P(policy); |
| 1073 | P(prio); |
Josh Poimboeuf | 4fa8d299 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 1074 | #undef PN_SCHEDSTAT |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 1075 | #undef PN |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 1076 | #undef __PN |
Josh Poimboeuf | 4fa8d299 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 1077 | #undef P_SCHEDSTAT |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 1078 | #undef P |
| 1079 | #undef __P |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 1080 | |
| 1081 | { |
Ingo Molnar | 29d7b90 | 2008-11-16 08:07:15 +0100 | [diff] [blame] | 1082 | unsigned int this_cpu = raw_smp_processor_id(); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 1083 | u64 t0, t1; |
| 1084 | |
Ingo Molnar | 29d7b90 | 2008-11-16 08:07:15 +0100 | [diff] [blame] | 1085 | t0 = cpu_clock(this_cpu); |
| 1086 | t1 = cpu_clock(this_cpu); |
Kamalesh Babulal | add332a | 2013-06-27 22:20:05 +0530 | [diff] [blame] | 1087 | SEQ_printf(m, "%-45s:%21Ld\n", |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 1088 | "clock-delta", (long long)(t1-t0)); |
| 1089 | } |
Ingo Molnar | b32e86b | 2013-10-07 11:29:30 +0100 | [diff] [blame] | 1090 | |
| 1091 | sched_show_numa(p, m); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 1092 | } |
| 1093 | |
| 1094 | void proc_sched_set_task(struct task_struct *p) |
| 1095 | { |
Ingo Molnar | 6cfb0d5 | 2007-08-02 17:41:40 +0200 | [diff] [blame] | 1096 | #ifdef CONFIG_SCHEDSTATS |
Lucas De Marchi | 41acab8 | 2010-03-10 23:37:45 -0300 | [diff] [blame] | 1097 | memset(&p->se.statistics, 0, sizeof(p->se.statistics)); |
Ingo Molnar | 6cfb0d5 | 2007-08-02 17:41:40 +0200 | [diff] [blame] | 1098 | #endif |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 1099 | } |