Thomas Gleixner | d2912cb | 2019-06-04 10:11:33 +0200 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-only |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 2 | /* |
Peter Zijlstra | 391e43d | 2011-11-15 17:14:39 +0100 | [diff] [blame] | 3 | * kernel/sched/debug.c |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 4 | * |
Ingo Molnar | 325ea10 | 2018-03-03 12:20:47 +0100 | [diff] [blame] | 5 | * Print the CFS rbtree and other debugging details |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 6 | * |
| 7 | * Copyright(C) 2007, Red Hat, Inc., Ingo Molnar |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 8 | */ |
Peter Zijlstra | 029632f | 2011-10-25 10:00:11 +0200 | [diff] [blame] | 9 | #include "sched.h" |
| 10 | |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 11 | static DEFINE_SPINLOCK(sched_debug_lock); |
| 12 | |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 13 | /* |
| 14 | * This allows printing both to /proc/sched_debug and |
| 15 | * to the console |
| 16 | */ |
| 17 | #define SEQ_printf(m, x...) \ |
| 18 | do { \ |
| 19 | if (m) \ |
| 20 | seq_printf(m, x); \ |
| 21 | else \ |
Joe Lawrence | a8c024c | 2018-03-19 14:35:54 -0400 | [diff] [blame] | 22 | pr_cont(x); \ |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 23 | } while (0) |
| 24 | |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 25 | /* |
| 26 | * Ease the printing of nsec fields: |
| 27 | */ |
Ingo Molnar | 90b2628 | 2007-12-30 17:24:35 +0100 | [diff] [blame] | 28 | static long long nsec_high(unsigned long long nsec) |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 29 | { |
Ingo Molnar | 90b2628 | 2007-12-30 17:24:35 +0100 | [diff] [blame] | 30 | if ((long long)nsec < 0) { |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 31 | nsec = -nsec; |
| 32 | do_div(nsec, 1000000); |
| 33 | return -nsec; |
| 34 | } |
| 35 | do_div(nsec, 1000000); |
| 36 | |
| 37 | return nsec; |
| 38 | } |
| 39 | |
Ingo Molnar | 90b2628 | 2007-12-30 17:24:35 +0100 | [diff] [blame] | 40 | static unsigned long nsec_low(unsigned long long nsec) |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 41 | { |
Ingo Molnar | 90b2628 | 2007-12-30 17:24:35 +0100 | [diff] [blame] | 42 | if ((long long)nsec < 0) |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 43 | nsec = -nsec; |
| 44 | |
| 45 | return do_div(nsec, 1000000); |
| 46 | } |
| 47 | |
| 48 | #define SPLIT_NS(x) nsec_high(x), nsec_low(x) |
| 49 | |
Steven Rostedt (Red Hat) | d6ca41d | 2016-02-22 16:26:50 -0500 | [diff] [blame] | 50 | #define SCHED_FEAT(name, enabled) \ |
| 51 | #name , |
| 52 | |
| 53 | static const char * const sched_feat_names[] = { |
| 54 | #include "features.h" |
| 55 | }; |
| 56 | |
| 57 | #undef SCHED_FEAT |
| 58 | |
| 59 | static int sched_feat_show(struct seq_file *m, void *v) |
| 60 | { |
| 61 | int i; |
| 62 | |
| 63 | for (i = 0; i < __SCHED_FEAT_NR; i++) { |
| 64 | if (!(sysctl_sched_features & (1UL << i))) |
| 65 | seq_puts(m, "NO_"); |
| 66 | seq_printf(m, "%s ", sched_feat_names[i]); |
| 67 | } |
| 68 | seq_puts(m, "\n"); |
| 69 | |
| 70 | return 0; |
| 71 | } |
| 72 | |
Masahiro Yamada | e9666d1 | 2018-12-31 00:14:15 +0900 | [diff] [blame] | 73 | #ifdef CONFIG_JUMP_LABEL |
Steven Rostedt (Red Hat) | d6ca41d | 2016-02-22 16:26:50 -0500 | [diff] [blame] | 74 | |
| 75 | #define jump_label_key__true STATIC_KEY_INIT_TRUE |
| 76 | #define jump_label_key__false STATIC_KEY_INIT_FALSE |
| 77 | |
| 78 | #define SCHED_FEAT(name, enabled) \ |
| 79 | jump_label_key__##enabled , |
| 80 | |
| 81 | struct static_key sched_feat_keys[__SCHED_FEAT_NR] = { |
| 82 | #include "features.h" |
| 83 | }; |
| 84 | |
| 85 | #undef SCHED_FEAT |
| 86 | |
| 87 | static void sched_feat_disable(int i) |
| 88 | { |
Jiada Wang | e73e819 | 2018-07-31 21:12:22 +0900 | [diff] [blame] | 89 | static_key_disable_cpuslocked(&sched_feat_keys[i]); |
Steven Rostedt (Red Hat) | d6ca41d | 2016-02-22 16:26:50 -0500 | [diff] [blame] | 90 | } |
| 91 | |
| 92 | static void sched_feat_enable(int i) |
| 93 | { |
Jiada Wang | e73e819 | 2018-07-31 21:12:22 +0900 | [diff] [blame] | 94 | static_key_enable_cpuslocked(&sched_feat_keys[i]); |
Steven Rostedt (Red Hat) | d6ca41d | 2016-02-22 16:26:50 -0500 | [diff] [blame] | 95 | } |
| 96 | #else |
| 97 | static void sched_feat_disable(int i) { }; |
| 98 | static void sched_feat_enable(int i) { }; |
Masahiro Yamada | e9666d1 | 2018-12-31 00:14:15 +0900 | [diff] [blame] | 99 | #endif /* CONFIG_JUMP_LABEL */ |
Steven Rostedt (Red Hat) | d6ca41d | 2016-02-22 16:26:50 -0500 | [diff] [blame] | 100 | |
| 101 | static int sched_feat_set(char *cmp) |
| 102 | { |
| 103 | int i; |
| 104 | int neg = 0; |
| 105 | |
| 106 | if (strncmp(cmp, "NO_", 3) == 0) { |
| 107 | neg = 1; |
| 108 | cmp += 3; |
| 109 | } |
| 110 | |
Yisheng Xie | 8f894bf | 2018-05-31 19:11:19 +0800 | [diff] [blame] | 111 | i = match_string(sched_feat_names, __SCHED_FEAT_NR, cmp); |
| 112 | if (i < 0) |
| 113 | return i; |
| 114 | |
| 115 | if (neg) { |
| 116 | sysctl_sched_features &= ~(1UL << i); |
| 117 | sched_feat_disable(i); |
| 118 | } else { |
| 119 | sysctl_sched_features |= (1UL << i); |
| 120 | sched_feat_enable(i); |
Steven Rostedt (Red Hat) | d6ca41d | 2016-02-22 16:26:50 -0500 | [diff] [blame] | 121 | } |
| 122 | |
Yisheng Xie | 8f894bf | 2018-05-31 19:11:19 +0800 | [diff] [blame] | 123 | return 0; |
Steven Rostedt (Red Hat) | d6ca41d | 2016-02-22 16:26:50 -0500 | [diff] [blame] | 124 | } |
| 125 | |
| 126 | static ssize_t |
| 127 | sched_feat_write(struct file *filp, const char __user *ubuf, |
| 128 | size_t cnt, loff_t *ppos) |
| 129 | { |
| 130 | char buf[64]; |
| 131 | char *cmp; |
Yisheng Xie | 8f894bf | 2018-05-31 19:11:19 +0800 | [diff] [blame] | 132 | int ret; |
Steven Rostedt (Red Hat) | d6ca41d | 2016-02-22 16:26:50 -0500 | [diff] [blame] | 133 | struct inode *inode; |
| 134 | |
| 135 | if (cnt > 63) |
| 136 | cnt = 63; |
| 137 | |
| 138 | if (copy_from_user(&buf, ubuf, cnt)) |
| 139 | return -EFAULT; |
| 140 | |
| 141 | buf[cnt] = 0; |
| 142 | cmp = strstrip(buf); |
| 143 | |
| 144 | /* Ensure the static_key remains in a consistent state */ |
| 145 | inode = file_inode(filp); |
Jiada Wang | e73e819 | 2018-07-31 21:12:22 +0900 | [diff] [blame] | 146 | cpus_read_lock(); |
Steven Rostedt (Red Hat) | d6ca41d | 2016-02-22 16:26:50 -0500 | [diff] [blame] | 147 | inode_lock(inode); |
Yisheng Xie | 8f894bf | 2018-05-31 19:11:19 +0800 | [diff] [blame] | 148 | ret = sched_feat_set(cmp); |
Steven Rostedt (Red Hat) | d6ca41d | 2016-02-22 16:26:50 -0500 | [diff] [blame] | 149 | inode_unlock(inode); |
Jiada Wang | e73e819 | 2018-07-31 21:12:22 +0900 | [diff] [blame] | 150 | cpus_read_unlock(); |
Yisheng Xie | 8f894bf | 2018-05-31 19:11:19 +0800 | [diff] [blame] | 151 | if (ret < 0) |
| 152 | return ret; |
Steven Rostedt (Red Hat) | d6ca41d | 2016-02-22 16:26:50 -0500 | [diff] [blame] | 153 | |
| 154 | *ppos += cnt; |
| 155 | |
| 156 | return cnt; |
| 157 | } |
| 158 | |
| 159 | static int sched_feat_open(struct inode *inode, struct file *filp) |
| 160 | { |
| 161 | return single_open(filp, sched_feat_show, NULL); |
| 162 | } |
| 163 | |
| 164 | static const struct file_operations sched_feat_fops = { |
| 165 | .open = sched_feat_open, |
| 166 | .write = sched_feat_write, |
| 167 | .read = seq_read, |
| 168 | .llseek = seq_lseek, |
| 169 | .release = single_release, |
| 170 | }; |
| 171 | |
Peter Zijlstra | 9469eb0 | 2017-09-07 17:03:53 +0200 | [diff] [blame] | 172 | __read_mostly bool sched_debug_enabled; |
| 173 | |
Steven Rostedt (Red Hat) | d6ca41d | 2016-02-22 16:26:50 -0500 | [diff] [blame] | 174 | static __init int sched_init_debug(void) |
| 175 | { |
| 176 | debugfs_create_file("sched_features", 0644, NULL, NULL, |
| 177 | &sched_feat_fops); |
| 178 | |
Peter Zijlstra | 9469eb0 | 2017-09-07 17:03:53 +0200 | [diff] [blame] | 179 | debugfs_create_bool("sched_debug", 0644, NULL, |
| 180 | &sched_debug_enabled); |
| 181 | |
Steven Rostedt (Red Hat) | d6ca41d | 2016-02-22 16:26:50 -0500 | [diff] [blame] | 182 | return 0; |
| 183 | } |
| 184 | late_initcall(sched_init_debug); |
| 185 | |
Steven Rostedt (Red Hat) | 3866e84 | 2016-02-22 16:26:51 -0500 | [diff] [blame] | 186 | #ifdef CONFIG_SMP |
| 187 | |
| 188 | #ifdef CONFIG_SYSCTL |
| 189 | |
| 190 | static struct ctl_table sd_ctl_dir[] = { |
| 191 | { |
| 192 | .procname = "sched_domain", |
| 193 | .mode = 0555, |
| 194 | }, |
| 195 | {} |
| 196 | }; |
| 197 | |
| 198 | static struct ctl_table sd_ctl_root[] = { |
| 199 | { |
| 200 | .procname = "kernel", |
| 201 | .mode = 0555, |
| 202 | .child = sd_ctl_dir, |
| 203 | }, |
| 204 | {} |
| 205 | }; |
| 206 | |
| 207 | static struct ctl_table *sd_alloc_ctl_entry(int n) |
| 208 | { |
| 209 | struct ctl_table *entry = |
| 210 | kcalloc(n, sizeof(struct ctl_table), GFP_KERNEL); |
| 211 | |
| 212 | return entry; |
| 213 | } |
| 214 | |
| 215 | static void sd_free_ctl_entry(struct ctl_table **tablep) |
| 216 | { |
| 217 | struct ctl_table *entry; |
| 218 | |
| 219 | /* |
| 220 | * In the intermediate directories, both the child directory and |
| 221 | * procname are dynamically allocated and could fail but the mode |
| 222 | * will always be set. In the lowest directory the names are |
| 223 | * static strings and all have proc handlers. |
| 224 | */ |
| 225 | for (entry = *tablep; entry->mode; entry++) { |
| 226 | if (entry->child) |
| 227 | sd_free_ctl_entry(&entry->child); |
| 228 | if (entry->proc_handler == NULL) |
| 229 | kfree(entry->procname); |
| 230 | } |
| 231 | |
| 232 | kfree(*tablep); |
| 233 | *tablep = NULL; |
| 234 | } |
| 235 | |
Steven Rostedt (Red Hat) | 3866e84 | 2016-02-22 16:26:51 -0500 | [diff] [blame] | 236 | static void |
| 237 | set_table_entry(struct ctl_table *entry, |
| 238 | const char *procname, void *data, int maxlen, |
Dietmar Eggemann | 3d8d535 | 2019-05-27 07:21:12 +0100 | [diff] [blame] | 239 | umode_t mode, proc_handler *proc_handler) |
Steven Rostedt (Red Hat) | 3866e84 | 2016-02-22 16:26:51 -0500 | [diff] [blame] | 240 | { |
| 241 | entry->procname = procname; |
| 242 | entry->data = data; |
| 243 | entry->maxlen = maxlen; |
| 244 | entry->mode = mode; |
| 245 | entry->proc_handler = proc_handler; |
Steven Rostedt (Red Hat) | 3866e84 | 2016-02-22 16:26:51 -0500 | [diff] [blame] | 246 | } |
| 247 | |
| 248 | static struct ctl_table * |
| 249 | sd_alloc_ctl_domain_table(struct sched_domain *sd) |
| 250 | { |
Dietmar Eggemann | 0e1fef6 | 2019-05-27 07:21:14 +0100 | [diff] [blame] | 251 | struct ctl_table *table = sd_alloc_ctl_entry(9); |
Steven Rostedt (Red Hat) | 3866e84 | 2016-02-22 16:26:51 -0500 | [diff] [blame] | 252 | |
| 253 | if (table == NULL) |
| 254 | return NULL; |
| 255 | |
Dietmar Eggemann | 0e1fef6 | 2019-05-27 07:21:14 +0100 | [diff] [blame] | 256 | set_table_entry(&table[0], "min_interval", &sd->min_interval, sizeof(long), 0644, proc_doulongvec_minmax); |
| 257 | set_table_entry(&table[1], "max_interval", &sd->max_interval, sizeof(long), 0644, proc_doulongvec_minmax); |
| 258 | set_table_entry(&table[2], "busy_factor", &sd->busy_factor, sizeof(int), 0644, proc_dointvec_minmax); |
| 259 | set_table_entry(&table[3], "imbalance_pct", &sd->imbalance_pct, sizeof(int), 0644, proc_dointvec_minmax); |
| 260 | set_table_entry(&table[4], "cache_nice_tries", &sd->cache_nice_tries, sizeof(int), 0644, proc_dointvec_minmax); |
| 261 | set_table_entry(&table[5], "flags", &sd->flags, sizeof(int), 0644, proc_dointvec_minmax); |
| 262 | set_table_entry(&table[6], "max_newidle_lb_cost", &sd->max_newidle_lb_cost, sizeof(long), 0644, proc_doulongvec_minmax); |
| 263 | set_table_entry(&table[7], "name", sd->name, CORENAME_MAX_SIZE, 0444, proc_dostring); |
| 264 | /* &table[8] is terminator */ |
Steven Rostedt (Red Hat) | 3866e84 | 2016-02-22 16:26:51 -0500 | [diff] [blame] | 265 | |
| 266 | return table; |
| 267 | } |
| 268 | |
| 269 | static struct ctl_table *sd_alloc_ctl_cpu_table(int cpu) |
| 270 | { |
| 271 | struct ctl_table *entry, *table; |
| 272 | struct sched_domain *sd; |
| 273 | int domain_num = 0, i; |
| 274 | char buf[32]; |
| 275 | |
| 276 | for_each_domain(cpu, sd) |
| 277 | domain_num++; |
| 278 | entry = table = sd_alloc_ctl_entry(domain_num + 1); |
| 279 | if (table == NULL) |
| 280 | return NULL; |
| 281 | |
| 282 | i = 0; |
| 283 | for_each_domain(cpu, sd) { |
| 284 | snprintf(buf, 32, "domain%d", i); |
| 285 | entry->procname = kstrdup(buf, GFP_KERNEL); |
| 286 | entry->mode = 0555; |
| 287 | entry->child = sd_alloc_ctl_domain_table(sd); |
| 288 | entry++; |
| 289 | i++; |
| 290 | } |
| 291 | return table; |
| 292 | } |
| 293 | |
Ingo Molnar | 97fb7a0 | 2018-03-03 14:01:12 +0100 | [diff] [blame] | 294 | static cpumask_var_t sd_sysctl_cpus; |
| 295 | static struct ctl_table_header *sd_sysctl_header; |
Peter Zijlstra | bbdacdf | 2017-08-10 17:10:26 +0200 | [diff] [blame] | 296 | |
Steven Rostedt (Red Hat) | 3866e84 | 2016-02-22 16:26:51 -0500 | [diff] [blame] | 297 | void register_sched_domain_sysctl(void) |
| 298 | { |
Peter Zijlstra | bbdacdf | 2017-08-10 17:10:26 +0200 | [diff] [blame] | 299 | static struct ctl_table *cpu_entries; |
| 300 | static struct ctl_table **cpu_idx; |
Hidetoshi Seto | 1ca4fa3 | 2019-01-29 10:12:45 -0500 | [diff] [blame] | 301 | static bool init_done = false; |
Steven Rostedt (Red Hat) | 3866e84 | 2016-02-22 16:26:51 -0500 | [diff] [blame] | 302 | char buf[32]; |
Peter Zijlstra | bbdacdf | 2017-08-10 17:10:26 +0200 | [diff] [blame] | 303 | int i; |
Steven Rostedt (Red Hat) | 3866e84 | 2016-02-22 16:26:51 -0500 | [diff] [blame] | 304 | |
Peter Zijlstra | bbdacdf | 2017-08-10 17:10:26 +0200 | [diff] [blame] | 305 | if (!cpu_entries) { |
| 306 | cpu_entries = sd_alloc_ctl_entry(num_possible_cpus() + 1); |
| 307 | if (!cpu_entries) |
| 308 | return; |
Steven Rostedt (Red Hat) | 3866e84 | 2016-02-22 16:26:51 -0500 | [diff] [blame] | 309 | |
Peter Zijlstra | bbdacdf | 2017-08-10 17:10:26 +0200 | [diff] [blame] | 310 | WARN_ON(sd_ctl_dir[0].child); |
| 311 | sd_ctl_dir[0].child = cpu_entries; |
| 312 | } |
Steven Rostedt (Red Hat) | 3866e84 | 2016-02-22 16:26:51 -0500 | [diff] [blame] | 313 | |
Peter Zijlstra | bbdacdf | 2017-08-10 17:10:26 +0200 | [diff] [blame] | 314 | if (!cpu_idx) { |
| 315 | struct ctl_table *e = cpu_entries; |
| 316 | |
| 317 | cpu_idx = kcalloc(nr_cpu_ids, sizeof(struct ctl_table*), GFP_KERNEL); |
| 318 | if (!cpu_idx) |
| 319 | return; |
| 320 | |
| 321 | /* deal with sparse possible map */ |
| 322 | for_each_possible_cpu(i) { |
| 323 | cpu_idx[i] = e; |
| 324 | e++; |
| 325 | } |
| 326 | } |
| 327 | |
| 328 | if (!cpumask_available(sd_sysctl_cpus)) { |
| 329 | if (!alloc_cpumask_var(&sd_sysctl_cpus, GFP_KERNEL)) |
| 330 | return; |
Hidetoshi Seto | 1ca4fa3 | 2019-01-29 10:12:45 -0500 | [diff] [blame] | 331 | } |
Peter Zijlstra | bbdacdf | 2017-08-10 17:10:26 +0200 | [diff] [blame] | 332 | |
Hidetoshi Seto | 1ca4fa3 | 2019-01-29 10:12:45 -0500 | [diff] [blame] | 333 | if (!init_done) { |
| 334 | init_done = true; |
Peter Zijlstra | bbdacdf | 2017-08-10 17:10:26 +0200 | [diff] [blame] | 335 | /* init to possible to not have holes in @cpu_entries */ |
| 336 | cpumask_copy(sd_sysctl_cpus, cpu_possible_mask); |
| 337 | } |
| 338 | |
| 339 | for_each_cpu(i, sd_sysctl_cpus) { |
| 340 | struct ctl_table *e = cpu_idx[i]; |
| 341 | |
| 342 | if (e->child) |
| 343 | sd_free_ctl_entry(&e->child); |
| 344 | |
| 345 | if (!e->procname) { |
| 346 | snprintf(buf, 32, "cpu%d", i); |
| 347 | e->procname = kstrdup(buf, GFP_KERNEL); |
| 348 | } |
| 349 | e->mode = 0555; |
| 350 | e->child = sd_alloc_ctl_cpu_table(i); |
| 351 | |
| 352 | __cpumask_clear_cpu(i, sd_sysctl_cpus); |
Steven Rostedt (Red Hat) | 3866e84 | 2016-02-22 16:26:51 -0500 | [diff] [blame] | 353 | } |
| 354 | |
| 355 | WARN_ON(sd_sysctl_header); |
| 356 | sd_sysctl_header = register_sysctl_table(sd_ctl_root); |
| 357 | } |
| 358 | |
Peter Zijlstra | bbdacdf | 2017-08-10 17:10:26 +0200 | [diff] [blame] | 359 | void dirty_sched_domain_sysctl(int cpu) |
| 360 | { |
| 361 | if (cpumask_available(sd_sysctl_cpus)) |
| 362 | __cpumask_set_cpu(cpu, sd_sysctl_cpus); |
| 363 | } |
| 364 | |
Steven Rostedt (Red Hat) | 3866e84 | 2016-02-22 16:26:51 -0500 | [diff] [blame] | 365 | /* may be called multiple times per register */ |
| 366 | void unregister_sched_domain_sysctl(void) |
| 367 | { |
| 368 | unregister_sysctl_table(sd_sysctl_header); |
| 369 | sd_sysctl_header = NULL; |
Steven Rostedt (Red Hat) | 3866e84 | 2016-02-22 16:26:51 -0500 | [diff] [blame] | 370 | } |
| 371 | #endif /* CONFIG_SYSCTL */ |
| 372 | #endif /* CONFIG_SMP */ |
| 373 | |
Bharata B Rao | ff9b48c | 2008-11-10 21:34:09 +0530 | [diff] [blame] | 374 | #ifdef CONFIG_FAIR_GROUP_SCHED |
Mike Galbraith | 5091faa | 2010-11-30 14:18:03 +0100 | [diff] [blame] | 375 | 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] | 376 | { |
| 377 | struct sched_entity *se = tg->se[cpu]; |
Bharata B Rao | ff9b48c | 2008-11-10 21:34:09 +0530 | [diff] [blame] | 378 | |
Ingo Molnar | 97fb7a0 | 2018-03-03 14:01:12 +0100 | [diff] [blame] | 379 | #define P(F) SEQ_printf(m, " .%-30s: %lld\n", #F, (long long)F) |
| 380 | #define P_SCHEDSTAT(F) SEQ_printf(m, " .%-30s: %lld\n", #F, (long long)schedstat_val(F)) |
| 381 | #define PN(F) SEQ_printf(m, " .%-30s: %lld.%06ld\n", #F, SPLIT_NS((long long)F)) |
| 382 | #define PN_SCHEDSTAT(F) 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] | 383 | |
Yuyang Du | cd126af | 2015-07-15 08:04:36 +0800 | [diff] [blame] | 384 | if (!se) |
Ben Segall | 18bf280 | 2012-10-04 12:51:20 +0200 | [diff] [blame] | 385 | return; |
Ben Segall | 18bf280 | 2012-10-04 12:51:20 +0200 | [diff] [blame] | 386 | |
Bharata B Rao | ff9b48c | 2008-11-10 21:34:09 +0530 | [diff] [blame] | 387 | PN(se->exec_start); |
| 388 | PN(se->vruntime); |
| 389 | PN(se->sum_exec_runtime); |
Ingo Molnar | 97fb7a0 | 2018-03-03 14:01:12 +0100 | [diff] [blame] | 390 | |
Mel Gorman | cb25176 | 2016-02-05 09:08:36 +0000 | [diff] [blame] | 391 | if (schedstat_enabled()) { |
Josh Poimboeuf | 4fa8d29 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 392 | PN_SCHEDSTAT(se->statistics.wait_start); |
| 393 | PN_SCHEDSTAT(se->statistics.sleep_start); |
| 394 | PN_SCHEDSTAT(se->statistics.block_start); |
| 395 | PN_SCHEDSTAT(se->statistics.sleep_max); |
| 396 | PN_SCHEDSTAT(se->statistics.block_max); |
| 397 | PN_SCHEDSTAT(se->statistics.exec_max); |
| 398 | PN_SCHEDSTAT(se->statistics.slice_max); |
| 399 | PN_SCHEDSTAT(se->statistics.wait_max); |
| 400 | PN_SCHEDSTAT(se->statistics.wait_sum); |
| 401 | P_SCHEDSTAT(se->statistics.wait_count); |
Mel Gorman | cb25176 | 2016-02-05 09:08:36 +0000 | [diff] [blame] | 402 | } |
Ingo Molnar | 97fb7a0 | 2018-03-03 14:01:12 +0100 | [diff] [blame] | 403 | |
Bharata B Rao | ff9b48c | 2008-11-10 21:34:09 +0530 | [diff] [blame] | 404 | P(se->load.weight); |
Paul Turner | 9d85f21 | 2012-10-04 13:18:29 +0200 | [diff] [blame] | 405 | #ifdef CONFIG_SMP |
Yuyang Du | 9d89c25 | 2015-07-15 08:04:37 +0800 | [diff] [blame] | 406 | P(se->avg.load_avg); |
| 407 | P(se->avg.util_avg); |
Vincent Guittot | 9f68395 | 2020-02-24 09:52:18 +0000 | [diff] [blame^] | 408 | P(se->avg.runnable_avg); |
Paul Turner | 9d85f21 | 2012-10-04 13:18:29 +0200 | [diff] [blame] | 409 | #endif |
Josh Poimboeuf | 4fa8d29 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 410 | |
| 411 | #undef PN_SCHEDSTAT |
Bharata B Rao | ff9b48c | 2008-11-10 21:34:09 +0530 | [diff] [blame] | 412 | #undef PN |
Josh Poimboeuf | 4fa8d29 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 413 | #undef P_SCHEDSTAT |
Bharata B Rao | ff9b48c | 2008-11-10 21:34:09 +0530 | [diff] [blame] | 414 | #undef P |
| 415 | } |
| 416 | #endif |
| 417 | |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 418 | #ifdef CONFIG_CGROUP_SCHED |
| 419 | static char group_path[PATH_MAX]; |
| 420 | |
| 421 | static char *task_group_path(struct task_group *tg) |
| 422 | { |
Bharata B Rao | 8ecedd7 | 2011-01-11 15:42:57 +0530 | [diff] [blame] | 423 | if (autogroup_path(tg, group_path, PATH_MAX)) |
| 424 | return group_path; |
| 425 | |
Tejun Heo | 4c737b4 | 2016-08-10 11:23:44 -0400 | [diff] [blame] | 426 | cgroup_path(tg->css.cgroup, group_path, PATH_MAX); |
Ingo Molnar | 97fb7a0 | 2018-03-03 14:01:12 +0100 | [diff] [blame] | 427 | |
Tejun Heo | 4c737b4 | 2016-08-10 11:23:44 -0400 | [diff] [blame] | 428 | return group_path; |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 429 | } |
| 430 | #endif |
| 431 | |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 432 | static void |
Ingo Molnar | a48da48 | 2007-08-09 11:16:51 +0200 | [diff] [blame] | 433 | 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] | 434 | { |
Xie XiuQi | 20435d8 | 2017-08-07 16:44:23 +0800 | [diff] [blame] | 435 | if (rq->curr == p) |
Xie XiuQi | e8c1649 | 2017-08-07 16:44:22 +0800 | [diff] [blame] | 436 | SEQ_printf(m, ">R"); |
Xie XiuQi | 20435d8 | 2017-08-07 16:44:23 +0800 | [diff] [blame] | 437 | else |
| 438 | SEQ_printf(m, " %c", task_state_to_char(p)); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 439 | |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 440 | SEQ_printf(m, "%15s %5d %9Ld.%06ld %9Ld %5d ", |
Peter Zijlstra | fc84091 | 2013-09-09 13:01:41 +0200 | [diff] [blame] | 441 | p->comm, task_pid_nr(p), |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 442 | SPLIT_NS(p->se.vruntime), |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 443 | (long long)(p->nvcsw + p->nivcsw), |
Al Viro | 6f605d8 | 2007-08-06 04:26:59 +0100 | [diff] [blame] | 444 | p->prio); |
Josh Poimboeuf | 9c57259 | 2016-06-03 17:58:40 -0500 | [diff] [blame] | 445 | |
Srikar Dronamraju | 33d6176 | 2015-06-08 13:40:39 +0530 | [diff] [blame] | 446 | SEQ_printf(m, "%9Ld.%06ld %9Ld.%06ld %9Ld.%06ld", |
Josh Poimboeuf | 20e1d48 | 2016-06-17 12:43:25 -0500 | [diff] [blame] | 447 | SPLIT_NS(schedstat_val_or_zero(p->se.statistics.wait_sum)), |
Srikar Dronamraju | 33d6176 | 2015-06-08 13:40:39 +0530 | [diff] [blame] | 448 | SPLIT_NS(p->se.sum_exec_runtime), |
Josh Poimboeuf | 20e1d48 | 2016-06-17 12:43:25 -0500 | [diff] [blame] | 449 | SPLIT_NS(schedstat_val_or_zero(p->se.statistics.sum_sleep_runtime))); |
Josh Poimboeuf | 9c57259 | 2016-06-03 17:58:40 -0500 | [diff] [blame] | 450 | |
Ingo Molnar | b32e86b | 2013-10-07 11:29:30 +0100 | [diff] [blame] | 451 | #ifdef CONFIG_NUMA_BALANCING |
Srikar Dronamraju | e3d24d0 | 2015-06-25 22:51:42 +0530 | [diff] [blame] | 452 | 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] | 453 | #endif |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 454 | #ifdef CONFIG_CGROUP_SCHED |
| 455 | SEQ_printf(m, " %s", task_group_path(task_group(p))); |
| 456 | #endif |
Peter Zijlstra | d19ca30 | 2008-04-19 19:45:00 +0200 | [diff] [blame] | 457 | |
Peter Zijlstra | d19ca30 | 2008-04-19 19:45:00 +0200 | [diff] [blame] | 458 | SEQ_printf(m, "\n"); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 459 | } |
| 460 | |
Ingo Molnar | a48da48 | 2007-08-09 11:16:51 +0200 | [diff] [blame] | 461 | 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] | 462 | { |
| 463 | struct task_struct *g, *p; |
| 464 | |
Joe Lawrence | e9ca267 | 2018-03-19 14:35:55 -0400 | [diff] [blame] | 465 | SEQ_printf(m, "\n"); |
| 466 | SEQ_printf(m, "runnable tasks:\n"); |
| 467 | SEQ_printf(m, " S task PID tree-key switches prio" |
| 468 | " wait-time sum-exec sum-sleep\n"); |
| 469 | SEQ_printf(m, "-------------------------------------------------------" |
| 470 | "----------------------------------------------------\n"); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 471 | |
Oleg Nesterov | 5bd96ab | 2014-09-21 21:33:41 +0200 | [diff] [blame] | 472 | rcu_read_lock(); |
Oleg Nesterov | d38e83c | 2014-08-13 21:19:56 +0200 | [diff] [blame] | 473 | for_each_process_thread(g, p) { |
Ingo Molnar | b32e86b | 2013-10-07 11:29:30 +0100 | [diff] [blame] | 474 | if (task_cpu(p) != rq_cpu) |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 475 | continue; |
| 476 | |
Ingo Molnar | a48da48 | 2007-08-09 11:16:51 +0200 | [diff] [blame] | 477 | print_task(m, rq, p); |
Oleg Nesterov | d38e83c | 2014-08-13 21:19:56 +0200 | [diff] [blame] | 478 | } |
Oleg Nesterov | 5bd96ab | 2014-09-21 21:33:41 +0200 | [diff] [blame] | 479 | rcu_read_unlock(); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 480 | } |
| 481 | |
Ingo Molnar | 5cef9ec | 2007-08-09 11:16:47 +0200 | [diff] [blame] | 482 | 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] | 483 | { |
Ingo Molnar | 86d9560 | 2007-10-15 17:00:06 +0200 | [diff] [blame] | 484 | s64 MIN_vruntime = -1, min_vruntime, max_vruntime = -1, |
| 485 | spread, rq0_min_vruntime, spread0; |
Hitoshi Mitake | 348ec61 | 2009-06-17 22:20:55 +0900 | [diff] [blame] | 486 | struct rq *rq = cpu_rq(cpu); |
Ingo Molnar | 67e12ea | 2007-10-15 17:00:05 +0200 | [diff] [blame] | 487 | struct sched_entity *last; |
| 488 | unsigned long flags; |
| 489 | |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 490 | #ifdef CONFIG_FAIR_GROUP_SCHED |
Joe Lawrence | e9ca267 | 2018-03-19 14:35:55 -0400 | [diff] [blame] | 491 | SEQ_printf(m, "\n"); |
| 492 | SEQ_printf(m, "cfs_rq[%d]:%s\n", cpu, task_group_path(cfs_rq->tg)); |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 493 | #else |
Joe Lawrence | e9ca267 | 2018-03-19 14:35:55 -0400 | [diff] [blame] | 494 | SEQ_printf(m, "\n"); |
| 495 | SEQ_printf(m, "cfs_rq[%d]:\n", cpu); |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 496 | #endif |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 497 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "exec_clock", |
| 498 | SPLIT_NS(cfs_rq->exec_clock)); |
Ingo Molnar | 67e12ea | 2007-10-15 17:00:05 +0200 | [diff] [blame] | 499 | |
Thomas Gleixner | 05fa785 | 2009-11-17 14:28:38 +0100 | [diff] [blame] | 500 | raw_spin_lock_irqsave(&rq->lock, flags); |
Davidlohr Bueso | bfb0688 | 2017-09-08 16:14:55 -0700 | [diff] [blame] | 501 | if (rb_first_cached(&cfs_rq->tasks_timeline)) |
Rik van Riel | ac53db5 | 2011-02-01 09:51:03 -0500 | [diff] [blame] | 502 | MIN_vruntime = (__pick_first_entity(cfs_rq))->vruntime; |
Ingo Molnar | 67e12ea | 2007-10-15 17:00:05 +0200 | [diff] [blame] | 503 | last = __pick_last_entity(cfs_rq); |
| 504 | if (last) |
| 505 | max_vruntime = last->vruntime; |
Peter Zijlstra | 5ac5c4d | 2008-11-10 10:46:32 +0100 | [diff] [blame] | 506 | min_vruntime = cfs_rq->min_vruntime; |
Hitoshi Mitake | 348ec61 | 2009-06-17 22:20:55 +0900 | [diff] [blame] | 507 | rq0_min_vruntime = cpu_rq(0)->cfs.min_vruntime; |
Thomas Gleixner | 05fa785 | 2009-11-17 14:28:38 +0100 | [diff] [blame] | 508 | raw_spin_unlock_irqrestore(&rq->lock, flags); |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 509 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "MIN_vruntime", |
| 510 | SPLIT_NS(MIN_vruntime)); |
| 511 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "min_vruntime", |
| 512 | SPLIT_NS(min_vruntime)); |
| 513 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "max_vruntime", |
| 514 | SPLIT_NS(max_vruntime)); |
Ingo Molnar | 67e12ea | 2007-10-15 17:00:05 +0200 | [diff] [blame] | 515 | spread = max_vruntime - MIN_vruntime; |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 516 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "spread", |
| 517 | SPLIT_NS(spread)); |
Ingo Molnar | 86d9560 | 2007-10-15 17:00:06 +0200 | [diff] [blame] | 518 | spread0 = min_vruntime - rq0_min_vruntime; |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 519 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "spread0", |
| 520 | SPLIT_NS(spread0)); |
Peter Zijlstra | 5ac5c4d | 2008-11-10 10:46:32 +0100 | [diff] [blame] | 521 | SEQ_printf(m, " .%-30s: %d\n", "nr_spread_over", |
Peter Zijlstra | ddc9729 | 2007-10-15 17:00:10 +0200 | [diff] [blame] | 522 | cfs_rq->nr_spread_over); |
Peter Zijlstra | c82513e | 2012-04-26 13:12:27 +0200 | [diff] [blame] | 523 | SEQ_printf(m, " .%-30s: %d\n", "nr_running", cfs_rq->nr_running); |
Peter Zijlstra | 2069dd7 | 2010-11-15 15:47:00 -0800 | [diff] [blame] | 524 | SEQ_printf(m, " .%-30s: %ld\n", "load", cfs_rq->load.weight); |
Peter Zijlstra | c09595f | 2008-06-27 13:41:14 +0200 | [diff] [blame] | 525 | #ifdef CONFIG_SMP |
Yuyang Du | 9d89c25 | 2015-07-15 08:04:37 +0800 | [diff] [blame] | 526 | SEQ_printf(m, " .%-30s: %lu\n", "load_avg", |
| 527 | cfs_rq->avg.load_avg); |
Vincent Guittot | 9f68395 | 2020-02-24 09:52:18 +0000 | [diff] [blame^] | 528 | SEQ_printf(m, " .%-30s: %lu\n", "runnable_avg", |
| 529 | cfs_rq->avg.runnable_avg); |
Yuyang Du | 9d89c25 | 2015-07-15 08:04:37 +0800 | [diff] [blame] | 530 | SEQ_printf(m, " .%-30s: %lu\n", "util_avg", |
| 531 | cfs_rq->avg.util_avg); |
Patrick Bellasi | 7f65ea4 | 2018-03-09 09:52:42 +0000 | [diff] [blame] | 532 | SEQ_printf(m, " .%-30s: %u\n", "util_est_enqueued", |
| 533 | cfs_rq->avg.util_est.enqueued); |
Peter Zijlstra | 2a2f5d4e | 2017-05-08 16:51:41 +0200 | [diff] [blame] | 534 | SEQ_printf(m, " .%-30s: %ld\n", "removed.load_avg", |
| 535 | cfs_rq->removed.load_avg); |
| 536 | SEQ_printf(m, " .%-30s: %ld\n", "removed.util_avg", |
| 537 | cfs_rq->removed.util_avg); |
Vincent Guittot | 9f68395 | 2020-02-24 09:52:18 +0000 | [diff] [blame^] | 538 | SEQ_printf(m, " .%-30s: %ld\n", "removed.runnable_avg", |
| 539 | cfs_rq->removed.runnable_avg); |
Alex Shi | 333bb86 | 2013-06-28 19:10:35 +0800 | [diff] [blame] | 540 | #ifdef CONFIG_FAIR_GROUP_SCHED |
Yuyang Du | 9d89c25 | 2015-07-15 08:04:37 +0800 | [diff] [blame] | 541 | SEQ_printf(m, " .%-30s: %lu\n", "tg_load_avg_contrib", |
| 542 | cfs_rq->tg_load_avg_contrib); |
Alex Shi | 333bb86 | 2013-06-28 19:10:35 +0800 | [diff] [blame] | 543 | SEQ_printf(m, " .%-30s: %ld\n", "tg_load_avg", |
| 544 | atomic_long_read(&cfs_rq->tg->load_avg)); |
Peter Zijlstra | c09595f | 2008-06-27 13:41:14 +0200 | [diff] [blame] | 545 | #endif |
Alex Shi | 333bb86 | 2013-06-28 19:10:35 +0800 | [diff] [blame] | 546 | #endif |
Ben Segall | f9f9ffc | 2013-10-16 11:16:32 -0700 | [diff] [blame] | 547 | #ifdef CONFIG_CFS_BANDWIDTH |
Ben Segall | f9f9ffc | 2013-10-16 11:16:32 -0700 | [diff] [blame] | 548 | SEQ_printf(m, " .%-30s: %d\n", "throttled", |
| 549 | cfs_rq->throttled); |
| 550 | SEQ_printf(m, " .%-30s: %d\n", "throttle_count", |
| 551 | cfs_rq->throttle_count); |
| 552 | #endif |
Peter Zijlstra | 2069dd7 | 2010-11-15 15:47:00 -0800 | [diff] [blame] | 553 | |
Alex Shi | 333bb86 | 2013-06-28 19:10:35 +0800 | [diff] [blame] | 554 | #ifdef CONFIG_FAIR_GROUP_SCHED |
Bharata B Rao | ff9b48c | 2008-11-10 21:34:09 +0530 | [diff] [blame] | 555 | print_cfs_group_stats(m, cpu, cfs_rq->tg); |
Peter Zijlstra | c09595f | 2008-06-27 13:41:14 +0200 | [diff] [blame] | 556 | #endif |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 557 | } |
| 558 | |
Peter Zijlstra | ada18de | 2008-06-19 14:22:24 +0200 | [diff] [blame] | 559 | void print_rt_rq(struct seq_file *m, int cpu, struct rt_rq *rt_rq) |
| 560 | { |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 561 | #ifdef CONFIG_RT_GROUP_SCHED |
Joe Lawrence | e9ca267 | 2018-03-19 14:35:55 -0400 | [diff] [blame] | 562 | SEQ_printf(m, "\n"); |
| 563 | SEQ_printf(m, "rt_rq[%d]:%s\n", cpu, task_group_path(rt_rq->tg)); |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 564 | #else |
Joe Lawrence | e9ca267 | 2018-03-19 14:35:55 -0400 | [diff] [blame] | 565 | SEQ_printf(m, "\n"); |
| 566 | SEQ_printf(m, "rt_rq[%d]:\n", cpu); |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 567 | #endif |
Peter Zijlstra | ada18de | 2008-06-19 14:22:24 +0200 | [diff] [blame] | 568 | |
| 569 | #define P(x) \ |
| 570 | SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rt_rq->x)) |
Daniel Bristot de Oliveira | 48365b3 | 2017-06-26 17:07:14 +0200 | [diff] [blame] | 571 | #define PU(x) \ |
| 572 | SEQ_printf(m, " .%-30s: %lu\n", #x, (unsigned long)(rt_rq->x)) |
Peter Zijlstra | ada18de | 2008-06-19 14:22:24 +0200 | [diff] [blame] | 573 | #define PN(x) \ |
| 574 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rt_rq->x)) |
| 575 | |
Daniel Bristot de Oliveira | 48365b3 | 2017-06-26 17:07:14 +0200 | [diff] [blame] | 576 | PU(rt_nr_running); |
| 577 | #ifdef CONFIG_SMP |
| 578 | PU(rt_nr_migratory); |
| 579 | #endif |
Peter Zijlstra | ada18de | 2008-06-19 14:22:24 +0200 | [diff] [blame] | 580 | P(rt_throttled); |
| 581 | PN(rt_time); |
| 582 | PN(rt_runtime); |
| 583 | |
| 584 | #undef PN |
Daniel Bristot de Oliveira | 48365b3 | 2017-06-26 17:07:14 +0200 | [diff] [blame] | 585 | #undef PU |
Peter Zijlstra | ada18de | 2008-06-19 14:22:24 +0200 | [diff] [blame] | 586 | #undef P |
| 587 | } |
| 588 | |
Wanpeng Li | acb3213 | 2014-10-31 06:39:33 +0800 | [diff] [blame] | 589 | void print_dl_rq(struct seq_file *m, int cpu, struct dl_rq *dl_rq) |
| 590 | { |
Steven Rostedt (Red Hat) | ef47718 | 2016-02-22 16:26:52 -0500 | [diff] [blame] | 591 | struct dl_bw *dl_bw; |
| 592 | |
Joe Lawrence | e9ca267 | 2018-03-19 14:35:55 -0400 | [diff] [blame] | 593 | SEQ_printf(m, "\n"); |
| 594 | SEQ_printf(m, "dl_rq[%d]:\n", cpu); |
Daniel Bristot de Oliveira | 48365b3 | 2017-06-26 17:07:14 +0200 | [diff] [blame] | 595 | |
| 596 | #define PU(x) \ |
| 597 | SEQ_printf(m, " .%-30s: %lu\n", #x, (unsigned long)(dl_rq->x)) |
| 598 | |
| 599 | PU(dl_nr_running); |
Steven Rostedt (Red Hat) | ef47718 | 2016-02-22 16:26:52 -0500 | [diff] [blame] | 600 | #ifdef CONFIG_SMP |
Daniel Bristot de Oliveira | 48365b3 | 2017-06-26 17:07:14 +0200 | [diff] [blame] | 601 | PU(dl_nr_migratory); |
Steven Rostedt (Red Hat) | ef47718 | 2016-02-22 16:26:52 -0500 | [diff] [blame] | 602 | dl_bw = &cpu_rq(cpu)->rd->dl_bw; |
| 603 | #else |
| 604 | dl_bw = &dl_rq->dl_bw; |
| 605 | #endif |
| 606 | SEQ_printf(m, " .%-30s: %lld\n", "dl_bw->bw", dl_bw->bw); |
| 607 | SEQ_printf(m, " .%-30s: %lld\n", "dl_bw->total_bw", dl_bw->total_bw); |
Daniel Bristot de Oliveira | 48365b3 | 2017-06-26 17:07:14 +0200 | [diff] [blame] | 608 | |
| 609 | #undef PU |
Wanpeng Li | acb3213 | 2014-10-31 06:39:33 +0800 | [diff] [blame] | 610 | } |
| 611 | |
Ingo Molnar | a48da48 | 2007-08-09 11:16:51 +0200 | [diff] [blame] | 612 | static void print_cpu(struct seq_file *m, int cpu) |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 613 | { |
Hitoshi Mitake | 348ec61 | 2009-06-17 22:20:55 +0900 | [diff] [blame] | 614 | struct rq *rq = cpu_rq(cpu); |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 615 | unsigned long flags; |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 616 | |
| 617 | #ifdef CONFIG_X86 |
| 618 | { |
| 619 | unsigned int freq = cpu_khz ? : 1; |
| 620 | |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 621 | SEQ_printf(m, "cpu#%d, %u.%03u MHz\n", |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 622 | cpu, freq / 1000, (freq % 1000)); |
| 623 | } |
| 624 | #else |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 625 | SEQ_printf(m, "cpu#%d\n", cpu); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 626 | #endif |
| 627 | |
Peter Zijlstra | 13e099d | 2012-05-14 14:34:00 +0200 | [diff] [blame] | 628 | #define P(x) \ |
| 629 | do { \ |
| 630 | if (sizeof(rq->x) == 4) \ |
| 631 | SEQ_printf(m, " .%-30s: %ld\n", #x, (long)(rq->x)); \ |
| 632 | else \ |
| 633 | SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rq->x));\ |
| 634 | } while (0) |
| 635 | |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 636 | #define PN(x) \ |
| 637 | SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rq->x)) |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 638 | |
| 639 | P(nr_running); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 640 | P(nr_switches); |
| 641 | P(nr_load_updates); |
| 642 | P(nr_uninterruptible); |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 643 | PN(next_balance); |
Peter Zijlstra | fc84091 | 2013-09-09 13:01:41 +0200 | [diff] [blame] | 644 | 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] | 645 | PN(clock); |
Peter Zijlstra | 5a53759 | 2015-01-05 11:18:12 +0100 | [diff] [blame] | 646 | PN(clock_task); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 647 | #undef P |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 648 | #undef PN |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 649 | |
Mike Galbraith | 1b9508f | 2009-11-04 17:53:50 +0100 | [diff] [blame] | 650 | #ifdef CONFIG_SMP |
Wanpeng Li | db6ea2f | 2016-05-03 12:38:25 +0800 | [diff] [blame] | 651 | #define P64(n) SEQ_printf(m, " .%-30s: %Ld\n", #n, rq->n); |
Mike Galbraith | 1b9508f | 2009-11-04 17:53:50 +0100 | [diff] [blame] | 652 | P64(avg_idle); |
Alex Shi | 37e6bae | 2014-01-23 18:39:54 +0800 | [diff] [blame] | 653 | P64(max_idle_balance_cost); |
Wanpeng Li | db6ea2f | 2016-05-03 12:38:25 +0800 | [diff] [blame] | 654 | #undef P64 |
Mike Galbraith | 1b9508f | 2009-11-04 17:53:50 +0100 | [diff] [blame] | 655 | #endif |
Peter Zijlstra | 5ac5c4d | 2008-11-10 10:46:32 +0100 | [diff] [blame] | 656 | |
Josh Poimboeuf | 4fa8d29 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 657 | #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] | 658 | if (schedstat_enabled()) { |
| 659 | P(yld_count); |
| 660 | P(sched_count); |
| 661 | P(sched_goidle); |
| 662 | P(ttwu_count); |
| 663 | P(ttwu_local); |
| 664 | } |
Peter Zijlstra | 5ac5c4d | 2008-11-10 10:46:32 +0100 | [diff] [blame] | 665 | #undef P |
Josh Poimboeuf | 4fa8d29 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 666 | |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 667 | spin_lock_irqsave(&sched_debug_lock, flags); |
Ingo Molnar | 5cef9ec | 2007-08-09 11:16:47 +0200 | [diff] [blame] | 668 | print_cfs_stats(m, cpu); |
Peter Zijlstra | ada18de | 2008-06-19 14:22:24 +0200 | [diff] [blame] | 669 | print_rt_stats(m, cpu); |
Wanpeng Li | acb3213 | 2014-10-31 06:39:33 +0800 | [diff] [blame] | 670 | print_dl_stats(m, cpu); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 671 | |
Ingo Molnar | a48da48 | 2007-08-09 11:16:51 +0200 | [diff] [blame] | 672 | print_rq(m, rq, cpu); |
Bharata B Rao | efe25c2 | 2011-01-11 15:41:54 +0530 | [diff] [blame] | 673 | spin_unlock_irqrestore(&sched_debug_lock, flags); |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 674 | SEQ_printf(m, "\n"); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 675 | } |
| 676 | |
Christian Ehrhardt | 1983a92 | 2009-11-30 12:16:47 +0100 | [diff] [blame] | 677 | static const char *sched_tunable_scaling_names[] = { |
| 678 | "none", |
Colin Ian King | ad2e379 | 2018-11-28 15:23:50 +0000 | [diff] [blame] | 679 | "logarithmic", |
Christian Ehrhardt | 1983a92 | 2009-11-30 12:16:47 +0100 | [diff] [blame] | 680 | "linear" |
| 681 | }; |
| 682 | |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 683 | static void sched_debug_header(struct seq_file *m) |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 684 | { |
Peter Zijlstra | 5bb6b1e | 2010-11-19 21:11:09 +0100 | [diff] [blame] | 685 | u64 ktime, sched_clk, cpu_clk; |
| 686 | unsigned long flags; |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 687 | |
Peter Zijlstra | 5bb6b1e | 2010-11-19 21:11:09 +0100 | [diff] [blame] | 688 | local_irq_save(flags); |
| 689 | ktime = ktime_to_ns(ktime_get()); |
| 690 | sched_clk = sched_clock(); |
| 691 | cpu_clk = local_clock(); |
| 692 | local_irq_restore(flags); |
| 693 | |
Ingo Molnar | b32e86b | 2013-10-07 11:29:30 +0100 | [diff] [blame] | 694 | SEQ_printf(m, "Sched Debug Version: v0.11, %s %.*s\n", |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 695 | init_utsname()->release, |
| 696 | (int)strcspn(init_utsname()->version, " "), |
| 697 | init_utsname()->version); |
| 698 | |
Peter Zijlstra | 5bb6b1e | 2010-11-19 21:11:09 +0100 | [diff] [blame] | 699 | #define P(x) \ |
| 700 | SEQ_printf(m, "%-40s: %Ld\n", #x, (long long)(x)) |
| 701 | #define PN(x) \ |
| 702 | SEQ_printf(m, "%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x)) |
| 703 | PN(ktime); |
| 704 | PN(sched_clk); |
| 705 | PN(cpu_clk); |
| 706 | P(jiffies); |
| 707 | #ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK |
Peter Zijlstra | 35af99e | 2013-11-28 19:38:42 +0100 | [diff] [blame] | 708 | P(sched_clock_stable()); |
Peter Zijlstra | 5bb6b1e | 2010-11-19 21:11:09 +0100 | [diff] [blame] | 709 | #endif |
| 710 | #undef PN |
| 711 | #undef P |
| 712 | |
| 713 | SEQ_printf(m, "\n"); |
| 714 | SEQ_printf(m, "sysctl_sched\n"); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 715 | |
Ingo Molnar | 1aa4731 | 2007-10-15 17:00:10 +0200 | [diff] [blame] | 716 | #define P(x) \ |
Ingo Molnar | d822cec | 2007-10-15 17:00:10 +0200 | [diff] [blame] | 717 | SEQ_printf(m, " .%-40s: %Ld\n", #x, (long long)(x)) |
Ingo Molnar | 1aa4731 | 2007-10-15 17:00:10 +0200 | [diff] [blame] | 718 | #define PN(x) \ |
Ingo Molnar | d822cec | 2007-10-15 17:00:10 +0200 | [diff] [blame] | 719 | SEQ_printf(m, " .%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x)) |
Ingo Molnar | 1aa4731 | 2007-10-15 17:00:10 +0200 | [diff] [blame] | 720 | PN(sysctl_sched_latency); |
Peter Zijlstra | b2be5e9 | 2007-11-09 22:39:37 +0100 | [diff] [blame] | 721 | PN(sysctl_sched_min_granularity); |
Ingo Molnar | 1aa4731 | 2007-10-15 17:00:10 +0200 | [diff] [blame] | 722 | PN(sysctl_sched_wakeup_granularity); |
Josh Hunt | eebef74 | 2010-07-19 12:31:16 -0700 | [diff] [blame] | 723 | P(sysctl_sched_child_runs_first); |
Ingo Molnar | 1aa4731 | 2007-10-15 17:00:10 +0200 | [diff] [blame] | 724 | P(sysctl_sched_features); |
| 725 | #undef PN |
| 726 | #undef P |
| 727 | |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 728 | SEQ_printf(m, " .%-40s: %d (%s)\n", |
| 729 | "sysctl_sched_tunable_scaling", |
Christian Ehrhardt | 1983a92 | 2009-11-30 12:16:47 +0100 | [diff] [blame] | 730 | sysctl_sched_tunable_scaling, |
| 731 | sched_tunable_scaling_names[sysctl_sched_tunable_scaling]); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 732 | SEQ_printf(m, "\n"); |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 733 | } |
| 734 | |
| 735 | static int sched_debug_show(struct seq_file *m, void *v) |
| 736 | { |
| 737 | int cpu = (unsigned long)(v - 2); |
| 738 | |
| 739 | if (cpu != -1) |
| 740 | print_cpu(m, cpu); |
| 741 | else |
| 742 | sched_debug_header(m); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 743 | |
| 744 | return 0; |
| 745 | } |
| 746 | |
Peter Zijlstra | 029632f | 2011-10-25 10:00:11 +0200 | [diff] [blame] | 747 | void sysrq_sched_debug_show(void) |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 748 | { |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 749 | int cpu; |
| 750 | |
| 751 | sched_debug_header(NULL); |
Wei Li | 02d4ac5 | 2019-12-26 16:52:24 +0800 | [diff] [blame] | 752 | for_each_online_cpu(cpu) { |
| 753 | /* |
| 754 | * Need to reset softlockup watchdogs on all CPUs, because |
| 755 | * another CPU might be blocked waiting for us to process |
| 756 | * an IPI or stop_machine. |
| 757 | */ |
| 758 | touch_nmi_watchdog(); |
| 759 | touch_all_softlockup_watchdogs(); |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 760 | print_cpu(NULL, cpu); |
Wei Li | 02d4ac5 | 2019-12-26 16:52:24 +0800 | [diff] [blame] | 761 | } |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 762 | } |
| 763 | |
| 764 | /* |
| 765 | * This itererator needs some explanation. |
| 766 | * It returns 1 for the header position. |
Ingo Molnar | 97fb7a0 | 2018-03-03 14:01:12 +0100 | [diff] [blame] | 767 | * This means 2 is CPU 0. |
| 768 | * In a hotplugged system some CPUs, including CPU 0, may be missing so we have |
| 769 | * to use cpumask_* to iterate over the CPUs. |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 770 | */ |
| 771 | static void *sched_debug_start(struct seq_file *file, loff_t *offset) |
| 772 | { |
| 773 | unsigned long n = *offset; |
| 774 | |
| 775 | if (n == 0) |
| 776 | return (void *) 1; |
| 777 | |
| 778 | n--; |
| 779 | |
| 780 | if (n > 0) |
| 781 | n = cpumask_next(n - 1, cpu_online_mask); |
| 782 | else |
| 783 | n = cpumask_first(cpu_online_mask); |
| 784 | |
| 785 | *offset = n + 1; |
| 786 | |
| 787 | if (n < nr_cpu_ids) |
| 788 | return (void *)(unsigned long)(n + 2); |
Ingo Molnar | 97fb7a0 | 2018-03-03 14:01:12 +0100 | [diff] [blame] | 789 | |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 790 | return NULL; |
| 791 | } |
| 792 | |
| 793 | static void *sched_debug_next(struct seq_file *file, void *data, loff_t *offset) |
| 794 | { |
| 795 | (*offset)++; |
| 796 | return sched_debug_start(file, offset); |
| 797 | } |
| 798 | |
| 799 | static void sched_debug_stop(struct seq_file *file, void *data) |
| 800 | { |
| 801 | } |
| 802 | |
| 803 | static const struct seq_operations sched_debug_sops = { |
Ingo Molnar | 97fb7a0 | 2018-03-03 14:01:12 +0100 | [diff] [blame] | 804 | .start = sched_debug_start, |
| 805 | .next = sched_debug_next, |
| 806 | .stop = sched_debug_stop, |
| 807 | .show = sched_debug_show, |
Nathan Zimmer | bbbfeac | 2013-02-21 15:15:09 -0800 | [diff] [blame] | 808 | }; |
| 809 | |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 810 | static int __init init_sched_debug_procfs(void) |
| 811 | { |
Christoph Hellwig | fddda2b | 2018-04-13 19:44:18 +0200 | [diff] [blame] | 812 | if (!proc_create_seq("sched_debug", 0444, NULL, &sched_debug_sops)) |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 813 | return -ENOMEM; |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 814 | return 0; |
| 815 | } |
| 816 | |
| 817 | __initcall(init_sched_debug_procfs); |
| 818 | |
Ingo Molnar | 97fb7a0 | 2018-03-03 14:01:12 +0100 | [diff] [blame] | 819 | #define __P(F) SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)F) |
| 820 | #define P(F) SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)p->F) |
| 821 | #define __PN(F) SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)F)) |
| 822 | #define PN(F) SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F)) |
Ingo Molnar | b32e86b | 2013-10-07 11:29:30 +0100 | [diff] [blame] | 823 | |
| 824 | |
Srikar Dronamraju | 397f237 | 2015-06-25 22:51:43 +0530 | [diff] [blame] | 825 | #ifdef CONFIG_NUMA_BALANCING |
| 826 | void print_numa_stats(struct seq_file *m, int node, unsigned long tsf, |
| 827 | unsigned long tpf, unsigned long gsf, unsigned long gpf) |
| 828 | { |
| 829 | SEQ_printf(m, "numa_faults node=%d ", node); |
Srikar Dronamraju | 67d9f6c25 | 2018-06-20 22:32:47 +0530 | [diff] [blame] | 830 | SEQ_printf(m, "task_private=%lu task_shared=%lu ", tpf, tsf); |
| 831 | SEQ_printf(m, "group_private=%lu group_shared=%lu\n", gpf, gsf); |
Srikar Dronamraju | 397f237 | 2015-06-25 22:51:43 +0530 | [diff] [blame] | 832 | } |
| 833 | #endif |
| 834 | |
| 835 | |
Ingo Molnar | b32e86b | 2013-10-07 11:29:30 +0100 | [diff] [blame] | 836 | static void sched_show_numa(struct task_struct *p, struct seq_file *m) |
| 837 | { |
| 838 | #ifdef CONFIG_NUMA_BALANCING |
| 839 | struct mempolicy *pol; |
Ingo Molnar | b32e86b | 2013-10-07 11:29:30 +0100 | [diff] [blame] | 840 | |
| 841 | if (p->mm) |
| 842 | P(mm->numa_scan_seq); |
| 843 | |
| 844 | task_lock(p); |
| 845 | pol = p->mempolicy; |
| 846 | if (pol && !(pol->flags & MPOL_F_MORON)) |
| 847 | pol = NULL; |
| 848 | mpol_get(pol); |
| 849 | task_unlock(p); |
| 850 | |
Srikar Dronamraju | 397f237 | 2015-06-25 22:51:43 +0530 | [diff] [blame] | 851 | P(numa_pages_migrated); |
| 852 | P(numa_preferred_nid); |
| 853 | P(total_numa_faults); |
| 854 | SEQ_printf(m, "current_node=%d, numa_group_id=%d\n", |
| 855 | task_node(p), task_numa_group_id(p)); |
| 856 | show_numa_stats(p, m); |
Ingo Molnar | b32e86b | 2013-10-07 11:29:30 +0100 | [diff] [blame] | 857 | mpol_put(pol); |
| 858 | #endif |
| 859 | } |
| 860 | |
Aleksa Sarai | 74dc338 | 2017-08-06 14:41:41 +1000 | [diff] [blame] | 861 | void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns, |
| 862 | struct seq_file *m) |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 863 | { |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 864 | unsigned long nr_switches; |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 865 | |
Aleksa Sarai | 74dc338 | 2017-08-06 14:41:41 +1000 | [diff] [blame] | 866 | SEQ_printf(m, "%s (%d, #threads: %d)\n", p->comm, task_pid_nr_ns(p, ns), |
Oleg Nesterov | 5089a97 | 2010-05-26 14:43:22 -0700 | [diff] [blame] | 867 | get_nr_threads(p)); |
Ingo Molnar | 2d92f22 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 868 | SEQ_printf(m, |
Kamalesh Babulal | add332a | 2013-06-27 22:20:05 +0530 | [diff] [blame] | 869 | "---------------------------------------------------------" |
| 870 | "----------\n"); |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 871 | #define __P(F) \ |
Kamalesh Babulal | add332a | 2013-06-27 22:20:05 +0530 | [diff] [blame] | 872 | SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)F) |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 873 | #define P(F) \ |
Kamalesh Babulal | add332a | 2013-06-27 22:20:05 +0530 | [diff] [blame] | 874 | SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)p->F) |
Josh Poimboeuf | 4fa8d29 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 875 | #define P_SCHEDSTAT(F) \ |
| 876 | 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] | 877 | #define __PN(F) \ |
Kamalesh Babulal | add332a | 2013-06-27 22:20:05 +0530 | [diff] [blame] | 878 | 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] | 879 | #define PN(F) \ |
Kamalesh Babulal | add332a | 2013-06-27 22:20:05 +0530 | [diff] [blame] | 880 | SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F)) |
Josh Poimboeuf | 4fa8d29 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 881 | #define PN_SCHEDSTAT(F) \ |
| 882 | 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] | 883 | |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 884 | PN(se.exec_start); |
| 885 | PN(se.vruntime); |
| 886 | PN(se.sum_exec_runtime); |
Ingo Molnar | 6cfb0d5 | 2007-08-02 17:41:40 +0200 | [diff] [blame] | 887 | |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 888 | nr_switches = p->nvcsw + p->nivcsw; |
| 889 | |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 890 | P(se.nr_migrations); |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 891 | |
Mel Gorman | cb25176 | 2016-02-05 09:08:36 +0000 | [diff] [blame] | 892 | if (schedstat_enabled()) { |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 893 | u64 avg_atom, avg_per_cpu; |
| 894 | |
Josh Poimboeuf | 4fa8d29 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 895 | PN_SCHEDSTAT(se.statistics.sum_sleep_runtime); |
| 896 | PN_SCHEDSTAT(se.statistics.wait_start); |
| 897 | PN_SCHEDSTAT(se.statistics.sleep_start); |
| 898 | PN_SCHEDSTAT(se.statistics.block_start); |
| 899 | PN_SCHEDSTAT(se.statistics.sleep_max); |
| 900 | PN_SCHEDSTAT(se.statistics.block_max); |
| 901 | PN_SCHEDSTAT(se.statistics.exec_max); |
| 902 | PN_SCHEDSTAT(se.statistics.slice_max); |
| 903 | PN_SCHEDSTAT(se.statistics.wait_max); |
| 904 | PN_SCHEDSTAT(se.statistics.wait_sum); |
| 905 | P_SCHEDSTAT(se.statistics.wait_count); |
| 906 | PN_SCHEDSTAT(se.statistics.iowait_sum); |
| 907 | P_SCHEDSTAT(se.statistics.iowait_count); |
| 908 | P_SCHEDSTAT(se.statistics.nr_migrations_cold); |
| 909 | P_SCHEDSTAT(se.statistics.nr_failed_migrations_affine); |
| 910 | P_SCHEDSTAT(se.statistics.nr_failed_migrations_running); |
| 911 | P_SCHEDSTAT(se.statistics.nr_failed_migrations_hot); |
| 912 | P_SCHEDSTAT(se.statistics.nr_forced_migrations); |
| 913 | P_SCHEDSTAT(se.statistics.nr_wakeups); |
| 914 | P_SCHEDSTAT(se.statistics.nr_wakeups_sync); |
| 915 | P_SCHEDSTAT(se.statistics.nr_wakeups_migrate); |
| 916 | P_SCHEDSTAT(se.statistics.nr_wakeups_local); |
| 917 | P_SCHEDSTAT(se.statistics.nr_wakeups_remote); |
| 918 | P_SCHEDSTAT(se.statistics.nr_wakeups_affine); |
| 919 | P_SCHEDSTAT(se.statistics.nr_wakeups_affine_attempts); |
| 920 | P_SCHEDSTAT(se.statistics.nr_wakeups_passive); |
| 921 | P_SCHEDSTAT(se.statistics.nr_wakeups_idle); |
Mel Gorman | cb25176 | 2016-02-05 09:08:36 +0000 | [diff] [blame] | 922 | |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 923 | avg_atom = p->se.sum_exec_runtime; |
| 924 | if (nr_switches) |
Mateusz Guzik | b0ab99e | 2014-06-14 15:00:09 +0200 | [diff] [blame] | 925 | avg_atom = div64_ul(avg_atom, nr_switches); |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 926 | else |
| 927 | avg_atom = -1LL; |
| 928 | |
| 929 | avg_per_cpu = p->se.sum_exec_runtime; |
Ingo Molnar | c1a8974 | 2007-11-28 15:52:56 +0100 | [diff] [blame] | 930 | if (p->se.nr_migrations) { |
Roman Zippel | 6f6d6a1 | 2008-05-01 04:34:28 -0700 | [diff] [blame] | 931 | avg_per_cpu = div64_u64(avg_per_cpu, |
| 932 | p->se.nr_migrations); |
Ingo Molnar | c1a8974 | 2007-11-28 15:52:56 +0100 | [diff] [blame] | 933 | } else { |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 934 | avg_per_cpu = -1LL; |
Ingo Molnar | c1a8974 | 2007-11-28 15:52:56 +0100 | [diff] [blame] | 935 | } |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 936 | |
| 937 | __PN(avg_atom); |
| 938 | __PN(avg_per_cpu); |
| 939 | } |
Josh Poimboeuf | 4fa8d29 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 940 | |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 941 | __P(nr_switches); |
Kamalesh Babulal | add332a | 2013-06-27 22:20:05 +0530 | [diff] [blame] | 942 | SEQ_printf(m, "%-45s:%21Ld\n", |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 943 | "nr_voluntary_switches", (long long)p->nvcsw); |
Kamalesh Babulal | add332a | 2013-06-27 22:20:05 +0530 | [diff] [blame] | 944 | SEQ_printf(m, "%-45s:%21Ld\n", |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 945 | "nr_involuntary_switches", (long long)p->nivcsw); |
| 946 | |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 947 | P(se.load.weight); |
Alex Shi | 333bb86 | 2013-06-28 19:10:35 +0800 | [diff] [blame] | 948 | #ifdef CONFIG_SMP |
Yuyang Du | 9d89c25 | 2015-07-15 08:04:37 +0800 | [diff] [blame] | 949 | P(se.avg.load_sum); |
Vincent Guittot | 9f68395 | 2020-02-24 09:52:18 +0000 | [diff] [blame^] | 950 | P(se.avg.runnable_sum); |
Yuyang Du | 9d89c25 | 2015-07-15 08:04:37 +0800 | [diff] [blame] | 951 | P(se.avg.util_sum); |
| 952 | P(se.avg.load_avg); |
Vincent Guittot | 9f68395 | 2020-02-24 09:52:18 +0000 | [diff] [blame^] | 953 | P(se.avg.runnable_avg); |
Yuyang Du | 9d89c25 | 2015-07-15 08:04:37 +0800 | [diff] [blame] | 954 | P(se.avg.util_avg); |
| 955 | P(se.avg.last_update_time); |
Patrick Bellasi | 7f65ea4 | 2018-03-09 09:52:42 +0000 | [diff] [blame] | 956 | P(se.avg.util_est.ewma); |
| 957 | P(se.avg.util_est.enqueued); |
Kamalesh Babulal | 939fd73 | 2013-06-25 13:33:36 +0530 | [diff] [blame] | 958 | #endif |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 959 | P(policy); |
| 960 | P(prio); |
Viresh Kumar | 1da1843 | 2018-11-05 16:51:55 +0530 | [diff] [blame] | 961 | if (task_has_dl_policy(p)) { |
Tommaso Cucinotta | 59f8c29 | 2016-10-26 11:17:17 +0200 | [diff] [blame] | 962 | P(dl.runtime); |
| 963 | P(dl.deadline); |
| 964 | } |
Josh Poimboeuf | 4fa8d29 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 965 | #undef PN_SCHEDSTAT |
Ingo Molnar | ef83a57 | 2007-10-15 17:00:08 +0200 | [diff] [blame] | 966 | #undef PN |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 967 | #undef __PN |
Josh Poimboeuf | 4fa8d29 | 2016-06-17 12:43:26 -0500 | [diff] [blame] | 968 | #undef P_SCHEDSTAT |
Ingo Molnar | cc36773 | 2007-10-15 17:00:18 +0200 | [diff] [blame] | 969 | #undef P |
| 970 | #undef __P |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 971 | |
| 972 | { |
Ingo Molnar | 29d7b90 | 2008-11-16 08:07:15 +0100 | [diff] [blame] | 973 | unsigned int this_cpu = raw_smp_processor_id(); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 974 | u64 t0, t1; |
| 975 | |
Ingo Molnar | 29d7b90 | 2008-11-16 08:07:15 +0100 | [diff] [blame] | 976 | t0 = cpu_clock(this_cpu); |
| 977 | t1 = cpu_clock(this_cpu); |
Kamalesh Babulal | add332a | 2013-06-27 22:20:05 +0530 | [diff] [blame] | 978 | SEQ_printf(m, "%-45s:%21Ld\n", |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 979 | "clock-delta", (long long)(t1-t0)); |
| 980 | } |
Ingo Molnar | b32e86b | 2013-10-07 11:29:30 +0100 | [diff] [blame] | 981 | |
| 982 | sched_show_numa(p, m); |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 983 | } |
| 984 | |
| 985 | void proc_sched_set_task(struct task_struct *p) |
| 986 | { |
Ingo Molnar | 6cfb0d5 | 2007-08-02 17:41:40 +0200 | [diff] [blame] | 987 | #ifdef CONFIG_SCHEDSTATS |
Lucas De Marchi | 41acab8 | 2010-03-10 23:37:45 -0300 | [diff] [blame] | 988 | memset(&p->se.statistics, 0, sizeof(p->se.statistics)); |
Ingo Molnar | 6cfb0d5 | 2007-08-02 17:41:40 +0200 | [diff] [blame] | 989 | #endif |
Ingo Molnar | 43ae34c | 2007-07-09 18:52:00 +0200 | [diff] [blame] | 990 | } |