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Ingo Molnar43ae34c2007-07-09 18:52:00 +02001/*
2 * kernel/time/sched_debug.c
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>
18
19/*
20 * This allows printing both to /proc/sched_debug and
21 * to the console
22 */
23#define SEQ_printf(m, x...) \
24 do { \
25 if (m) \
26 seq_printf(m, x); \
27 else \
28 printk(x); \
29 } while (0)
30
Ingo Molnaref83a572007-10-15 17:00:08 +020031/*
32 * Ease the printing of nsec fields:
33 */
Ingo Molnar90b26282007-12-30 17:24:35 +010034static long long nsec_high(unsigned long long nsec)
Ingo Molnaref83a572007-10-15 17:00:08 +020035{
Ingo Molnar90b26282007-12-30 17:24:35 +010036 if ((long long)nsec < 0) {
Ingo Molnaref83a572007-10-15 17:00:08 +020037 nsec = -nsec;
38 do_div(nsec, 1000000);
39 return -nsec;
40 }
41 do_div(nsec, 1000000);
42
43 return nsec;
44}
45
Ingo Molnar90b26282007-12-30 17:24:35 +010046static unsigned long nsec_low(unsigned long long nsec)
Ingo Molnaref83a572007-10-15 17:00:08 +020047{
Ingo Molnar90b26282007-12-30 17:24:35 +010048 if ((long long)nsec < 0)
Ingo Molnaref83a572007-10-15 17:00:08 +020049 nsec = -nsec;
50
51 return do_div(nsec, 1000000);
52}
53
54#define SPLIT_NS(x) nsec_high(x), nsec_low(x)
55
Bharata B Raoff9b48c2008-11-10 21:34:09 +053056#ifdef CONFIG_FAIR_GROUP_SCHED
57static void print_cfs_group_stats(struct seq_file *m, int cpu,
58 struct task_group *tg)
59{
60 struct sched_entity *se = tg->se[cpu];
61 if (!se)
62 return;
63
64#define P(F) \
65 SEQ_printf(m, " .%-30s: %lld\n", #F, (long long)F)
66#define PN(F) \
67 SEQ_printf(m, " .%-30s: %lld.%06ld\n", #F, SPLIT_NS((long long)F))
68
69 PN(se->exec_start);
70 PN(se->vruntime);
71 PN(se->sum_exec_runtime);
72#ifdef CONFIG_SCHEDSTATS
73 PN(se->wait_start);
74 PN(se->sleep_start);
75 PN(se->block_start);
76 PN(se->sleep_max);
77 PN(se->block_max);
78 PN(se->exec_max);
79 PN(se->slice_max);
80 PN(se->wait_max);
81 PN(se->wait_sum);
82 P(se->wait_count);
83#endif
84 P(se->load.weight);
85#undef PN
86#undef P
87}
88#endif
89
Ingo Molnar43ae34c2007-07-09 18:52:00 +020090static void
Ingo Molnara48da482007-08-09 11:16:51 +020091print_task(struct seq_file *m, struct rq *rq, struct task_struct *p)
Ingo Molnar43ae34c2007-07-09 18:52:00 +020092{
93 if (rq->curr == p)
94 SEQ_printf(m, "R");
95 else
96 SEQ_printf(m, " ");
97
Ingo Molnaref83a572007-10-15 17:00:08 +020098 SEQ_printf(m, "%15s %5d %9Ld.%06ld %9Ld %5d ",
Ingo Molnar43ae34c2007-07-09 18:52:00 +020099 p->comm, p->pid,
Ingo Molnaref83a572007-10-15 17:00:08 +0200100 SPLIT_NS(p->se.vruntime),
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200101 (long long)(p->nvcsw + p->nivcsw),
Al Viro6f605d82007-08-06 04:26:59 +0100102 p->prio);
Ingo Molnar6cfb0d52007-08-02 17:41:40 +0200103#ifdef CONFIG_SCHEDSTATS
Peter Zijlstrad19ca302008-04-19 19:45:00 +0200104 SEQ_printf(m, "%9Ld.%06ld %9Ld.%06ld %9Ld.%06ld",
Ingo Molnaref83a572007-10-15 17:00:08 +0200105 SPLIT_NS(p->se.vruntime),
106 SPLIT_NS(p->se.sum_exec_runtime),
107 SPLIT_NS(p->se.sum_sleep_runtime));
Ingo Molnar6cfb0d52007-08-02 17:41:40 +0200108#else
Peter Zijlstrad19ca302008-04-19 19:45:00 +0200109 SEQ_printf(m, "%15Ld %15Ld %15Ld.%06ld %15Ld.%06ld %15Ld.%06ld",
Ingo Molnaref83a572007-10-15 17:00:08 +0200110 0LL, 0LL, 0LL, 0L, 0LL, 0L, 0LL, 0L);
Ingo Molnar6cfb0d52007-08-02 17:41:40 +0200111#endif
Peter Zijlstrad19ca302008-04-19 19:45:00 +0200112
113#ifdef CONFIG_CGROUP_SCHED
114 {
115 char path[64];
116
117 cgroup_path(task_group(p)->css.cgroup, path, sizeof(path));
118 SEQ_printf(m, " %s", path);
119 }
120#endif
121 SEQ_printf(m, "\n");
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200122}
123
Ingo Molnara48da482007-08-09 11:16:51 +0200124static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu)
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200125{
126 struct task_struct *g, *p;
Peter Zijlstraab63a632007-10-25 14:02:45 +0200127 unsigned long flags;
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200128
129 SEQ_printf(m,
130 "\nrunnable tasks:\n"
Mike Galbraithc86da3a2007-10-15 17:00:08 +0200131 " task PID tree-key switches prio"
132 " exec-runtime sum-exec sum-sleep\n"
Ingo Molnar1a75b942007-10-15 17:00:08 +0200133 "------------------------------------------------------"
Mike Galbraithc86da3a2007-10-15 17:00:08 +0200134 "----------------------------------------------------\n");
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200135
Peter Zijlstraab63a632007-10-25 14:02:45 +0200136 read_lock_irqsave(&tasklist_lock, flags);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200137
138 do_each_thread(g, p) {
139 if (!p->se.on_rq || task_cpu(p) != rq_cpu)
140 continue;
141
Ingo Molnara48da482007-08-09 11:16:51 +0200142 print_task(m, rq, p);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200143 } while_each_thread(g, p);
144
Peter Zijlstraab63a632007-10-25 14:02:45 +0200145 read_unlock_irqrestore(&tasklist_lock, flags);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200146}
147
Li Zefan805194c2009-01-10 15:43:15 +0800148#if defined(CONFIG_CGROUP_SCHED) && \
149 (defined(CONFIG_FAIR_GROUP_SCHED) || defined(CONFIG_RT_GROUP_SCHED))
150static void task_group_path(struct task_group *tg, char *buf, int buflen)
151{
152 /* may be NULL if the underlying cgroup isn't fully-created yet */
153 if (!tg->css.cgroup) {
154 buf[0] = '\0';
155 return;
156 }
157 cgroup_path(tg->css.cgroup, buf, buflen);
158}
159#endif
160
Ingo Molnar5cef9ec2007-08-09 11:16:47 +0200161void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200162{
Ingo Molnar86d95602007-10-15 17:00:06 +0200163 s64 MIN_vruntime = -1, min_vruntime, max_vruntime = -1,
164 spread, rq0_min_vruntime, spread0;
Ingo Molnar67e12ea2007-10-15 17:00:05 +0200165 struct rq *rq = &per_cpu(runqueues, cpu);
166 struct sched_entity *last;
167 unsigned long flags;
168
Peter Zijlstraada18de2008-06-19 14:22:24 +0200169#if defined(CONFIG_CGROUP_SCHED) && defined(CONFIG_FAIR_GROUP_SCHED)
Li Zefan805194c2009-01-10 15:43:15 +0800170 char path[128];
Peter Zijlstrad19ca302008-04-19 19:45:00 +0200171 struct task_group *tg = cfs_rq->tg;
172
Li Zefan805194c2009-01-10 15:43:15 +0800173 task_group_path(tg, path, sizeof(path));
Peter Zijlstrad19ca302008-04-19 19:45:00 +0200174
175 SEQ_printf(m, "\ncfs_rq[%d]:%s\n", cpu, path);
Arun R Bharadwaj6c415b92008-12-01 20:49:05 +0530176#elif defined(CONFIG_USER_SCHED) && defined(CONFIG_FAIR_GROUP_SCHED)
177 {
178 uid_t uid = cfs_rq->tg->uid;
179 SEQ_printf(m, "\ncfs_rq[%d] for UID: %u\n", cpu, uid);
180 }
Peter Zijlstraada18de2008-06-19 14:22:24 +0200181#else
182 SEQ_printf(m, "\ncfs_rq[%d]:\n", cpu);
Peter Zijlstrad19ca302008-04-19 19:45:00 +0200183#endif
Ingo Molnaref83a572007-10-15 17:00:08 +0200184 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "exec_clock",
185 SPLIT_NS(cfs_rq->exec_clock));
Ingo Molnar67e12ea2007-10-15 17:00:05 +0200186
187 spin_lock_irqsave(&rq->lock, flags);
188 if (cfs_rq->rb_leftmost)
189 MIN_vruntime = (__pick_next_entity(cfs_rq))->vruntime;
190 last = __pick_last_entity(cfs_rq);
191 if (last)
192 max_vruntime = last->vruntime;
Peter Zijlstra5ac5c4d2008-11-10 10:46:32 +0100193 min_vruntime = cfs_rq->min_vruntime;
Ingo Molnar86d95602007-10-15 17:00:06 +0200194 rq0_min_vruntime = per_cpu(runqueues, 0).cfs.min_vruntime;
Ingo Molnar67e12ea2007-10-15 17:00:05 +0200195 spin_unlock_irqrestore(&rq->lock, flags);
Ingo Molnaref83a572007-10-15 17:00:08 +0200196 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "MIN_vruntime",
197 SPLIT_NS(MIN_vruntime));
198 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "min_vruntime",
199 SPLIT_NS(min_vruntime));
200 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "max_vruntime",
201 SPLIT_NS(max_vruntime));
Ingo Molnar67e12ea2007-10-15 17:00:05 +0200202 spread = max_vruntime - MIN_vruntime;
Ingo Molnaref83a572007-10-15 17:00:08 +0200203 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "spread",
204 SPLIT_NS(spread));
Ingo Molnar86d95602007-10-15 17:00:06 +0200205 spread0 = min_vruntime - rq0_min_vruntime;
Ingo Molnaref83a572007-10-15 17:00:08 +0200206 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "spread0",
207 SPLIT_NS(spread0));
Srivatsa Vaddagiri545f3b12007-10-15 17:00:09 +0200208 SEQ_printf(m, " .%-30s: %ld\n", "nr_running", cfs_rq->nr_running);
209 SEQ_printf(m, " .%-30s: %ld\n", "load", cfs_rq->load.weight);
Peter Zijlstra32df2ee2008-06-27 13:41:17 +0200210
Peter Zijlstra5ac5c4d2008-11-10 10:46:32 +0100211 SEQ_printf(m, " .%-30s: %d\n", "nr_spread_over",
Peter Zijlstraddc97292007-10-15 17:00:10 +0200212 cfs_rq->nr_spread_over);
Peter Zijlstrac09595f2008-06-27 13:41:14 +0200213#ifdef CONFIG_FAIR_GROUP_SCHED
214#ifdef CONFIG_SMP
215 SEQ_printf(m, " .%-30s: %lu\n", "shares", cfs_rq->shares);
216#endif
Bharata B Raoff9b48c2008-11-10 21:34:09 +0530217 print_cfs_group_stats(m, cpu, cfs_rq->tg);
Peter Zijlstrac09595f2008-06-27 13:41:14 +0200218#endif
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200219}
220
Peter Zijlstraada18de2008-06-19 14:22:24 +0200221void print_rt_rq(struct seq_file *m, int cpu, struct rt_rq *rt_rq)
222{
223#if defined(CONFIG_CGROUP_SCHED) && defined(CONFIG_RT_GROUP_SCHED)
Li Zefan805194c2009-01-10 15:43:15 +0800224 char path[128];
Peter Zijlstraada18de2008-06-19 14:22:24 +0200225 struct task_group *tg = rt_rq->tg;
226
Li Zefan805194c2009-01-10 15:43:15 +0800227 task_group_path(tg, path, sizeof(path));
Peter Zijlstraada18de2008-06-19 14:22:24 +0200228
229 SEQ_printf(m, "\nrt_rq[%d]:%s\n", cpu, path);
230#else
231 SEQ_printf(m, "\nrt_rq[%d]:\n", cpu);
232#endif
233
234
235#define P(x) \
236 SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rt_rq->x))
237#define PN(x) \
238 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rt_rq->x))
239
240 P(rt_nr_running);
241 P(rt_throttled);
242 PN(rt_time);
243 PN(rt_runtime);
244
245#undef PN
246#undef P
247}
248
Ingo Molnara48da482007-08-09 11:16:51 +0200249static void print_cpu(struct seq_file *m, int cpu)
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200250{
251 struct rq *rq = &per_cpu(runqueues, cpu);
252
253#ifdef CONFIG_X86
254 {
255 unsigned int freq = cpu_khz ? : 1;
256
257 SEQ_printf(m, "\ncpu#%d, %u.%03u MHz\n",
258 cpu, freq / 1000, (freq % 1000));
259 }
260#else
261 SEQ_printf(m, "\ncpu#%d\n", cpu);
262#endif
263
264#define P(x) \
265 SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rq->x))
Ingo Molnaref83a572007-10-15 17:00:08 +0200266#define PN(x) \
267 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rq->x))
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200268
269 P(nr_running);
270 SEQ_printf(m, " .%-30s: %lu\n", "load",
Dmitry Adamushko495eca42007-10-15 17:00:06 +0200271 rq->load.weight);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200272 P(nr_switches);
273 P(nr_load_updates);
274 P(nr_uninterruptible);
Ingo Molnaref83a572007-10-15 17:00:08 +0200275 PN(next_balance);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200276 P(curr->pid);
Ingo Molnaref83a572007-10-15 17:00:08 +0200277 PN(clock);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200278 P(cpu_load[0]);
279 P(cpu_load[1]);
280 P(cpu_load[2]);
281 P(cpu_load[3]);
282 P(cpu_load[4]);
283#undef P
Ingo Molnaref83a572007-10-15 17:00:08 +0200284#undef PN
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200285
Peter Zijlstra5ac5c4d2008-11-10 10:46:32 +0100286#ifdef CONFIG_SCHEDSTATS
287#define P(n) SEQ_printf(m, " .%-30s: %d\n", #n, rq->n);
288
Peter Zijlstra5ac5c4d2008-11-10 10:46:32 +0100289 P(yld_count);
290
291 P(sched_switch);
292 P(sched_count);
293 P(sched_goidle);
294
295 P(ttwu_count);
296 P(ttwu_local);
297
298 P(bkl_count);
299
300#undef P
301#endif
Ingo Molnar5cef9ec2007-08-09 11:16:47 +0200302 print_cfs_stats(m, cpu);
Peter Zijlstraada18de2008-06-19 14:22:24 +0200303 print_rt_stats(m, cpu);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200304
Ingo Molnara48da482007-08-09 11:16:51 +0200305 print_rq(m, rq, cpu);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200306}
307
308static int sched_debug_show(struct seq_file *m, void *v)
309{
310 u64 now = ktime_to_ns(ktime_get());
311 int cpu;
312
Luis Henriques67aa0f72009-03-24 22:10:02 +0000313 SEQ_printf(m, "Sched Debug Version: v0.09, %s %.*s\n",
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200314 init_utsname()->release,
315 (int)strcspn(init_utsname()->version, " "),
316 init_utsname()->version);
317
Ingo Molnaref83a572007-10-15 17:00:08 +0200318 SEQ_printf(m, "now at %Lu.%06ld msecs\n", SPLIT_NS(now));
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200319
Ingo Molnar1aa47312007-10-15 17:00:10 +0200320#define P(x) \
Ingo Molnard822cec2007-10-15 17:00:10 +0200321 SEQ_printf(m, " .%-40s: %Ld\n", #x, (long long)(x))
Ingo Molnar1aa47312007-10-15 17:00:10 +0200322#define PN(x) \
Ingo Molnard822cec2007-10-15 17:00:10 +0200323 SEQ_printf(m, " .%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x))
Luis Henriquesaf66df52009-03-18 00:04:25 +0000324 P(jiffies);
Ingo Molnar1aa47312007-10-15 17:00:10 +0200325 PN(sysctl_sched_latency);
Peter Zijlstrab2be5e92007-11-09 22:39:37 +0100326 PN(sysctl_sched_min_granularity);
Ingo Molnar1aa47312007-10-15 17:00:10 +0200327 PN(sysctl_sched_wakeup_granularity);
Ingo Molnar1aa47312007-10-15 17:00:10 +0200328 PN(sysctl_sched_child_runs_first);
329 P(sysctl_sched_features);
330#undef PN
331#undef P
332
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200333 for_each_online_cpu(cpu)
Ingo Molnara48da482007-08-09 11:16:51 +0200334 print_cpu(m, cpu);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200335
336 SEQ_printf(m, "\n");
337
338 return 0;
339}
340
Josh Triplettf33734612007-07-26 13:40:43 +0200341static void sysrq_sched_debug_show(void)
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200342{
343 sched_debug_show(NULL, NULL);
344}
345
346static int sched_debug_open(struct inode *inode, struct file *filp)
347{
348 return single_open(filp, sched_debug_show, NULL);
349}
350
Arjan van de Ven0dbee3a2007-10-15 17:00:19 +0200351static const struct file_operations sched_debug_fops = {
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200352 .open = sched_debug_open,
353 .read = seq_read,
354 .llseek = seq_lseek,
Alexey Dobriyan5ea473a2007-07-31 00:38:50 -0700355 .release = single_release,
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200356};
357
358static int __init init_sched_debug_procfs(void)
359{
360 struct proc_dir_entry *pe;
361
Li Zefana9cf4dd2008-10-30 15:23:34 +0800362 pe = proc_create("sched_debug", 0444, NULL, &sched_debug_fops);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200363 if (!pe)
364 return -ENOMEM;
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200365 return 0;
366}
367
368__initcall(init_sched_debug_procfs);
369
370void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
371{
Ingo Molnarcc367732007-10-15 17:00:18 +0200372 unsigned long nr_switches;
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200373 unsigned long flags;
374 int num_threads = 1;
375
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200376 if (lock_task_sighand(p, &flags)) {
377 num_threads = atomic_read(&p->signal->count);
378 unlock_task_sighand(p, &flags);
379 }
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200380
381 SEQ_printf(m, "%s (%d, #threads: %d)\n", p->comm, p->pid, num_threads);
Ingo Molnar2d92f222007-10-15 17:00:18 +0200382 SEQ_printf(m,
383 "---------------------------------------------------------\n");
Ingo Molnarcc367732007-10-15 17:00:18 +0200384#define __P(F) \
385 SEQ_printf(m, "%-35s:%21Ld\n", #F, (long long)F)
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200386#define P(F) \
Ingo Molnar2d92f222007-10-15 17:00:18 +0200387 SEQ_printf(m, "%-35s:%21Ld\n", #F, (long long)p->F)
Ingo Molnarcc367732007-10-15 17:00:18 +0200388#define __PN(F) \
389 SEQ_printf(m, "%-35s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)F))
Ingo Molnaref83a572007-10-15 17:00:08 +0200390#define PN(F) \
Ingo Molnar2d92f222007-10-15 17:00:18 +0200391 SEQ_printf(m, "%-35s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F))
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200392
Ingo Molnaref83a572007-10-15 17:00:08 +0200393 PN(se.exec_start);
394 PN(se.vruntime);
395 PN(se.sum_exec_runtime);
Ingo Molnar4ae7d5c2008-03-19 01:42:00 +0100396 PN(se.avg_overlap);
Peter Zijlstra831451a2009-01-14 12:39:18 +0100397 PN(se.avg_wakeup);
Ingo Molnar6cfb0d52007-08-02 17:41:40 +0200398
Ingo Molnarcc367732007-10-15 17:00:18 +0200399 nr_switches = p->nvcsw + p->nivcsw;
400
Ingo Molnar6cfb0d52007-08-02 17:41:40 +0200401#ifdef CONFIG_SCHEDSTATS
Ingo Molnaref83a572007-10-15 17:00:08 +0200402 PN(se.wait_start);
403 PN(se.sleep_start);
404 PN(se.block_start);
405 PN(se.sleep_max);
406 PN(se.block_max);
407 PN(se.exec_max);
408 PN(se.slice_max);
409 PN(se.wait_max);
Arjan van de Ven6d082592008-01-25 21:08:35 +0100410 PN(se.wait_sum);
411 P(se.wait_count);
Ingo Molnar2d723762007-10-15 17:00:12 +0200412 P(sched_info.bkl_count);
Ingo Molnarcc367732007-10-15 17:00:18 +0200413 P(se.nr_migrations);
414 P(se.nr_migrations_cold);
415 P(se.nr_failed_migrations_affine);
416 P(se.nr_failed_migrations_running);
417 P(se.nr_failed_migrations_hot);
418 P(se.nr_forced_migrations);
419 P(se.nr_forced2_migrations);
420 P(se.nr_wakeups);
421 P(se.nr_wakeups_sync);
422 P(se.nr_wakeups_migrate);
423 P(se.nr_wakeups_local);
424 P(se.nr_wakeups_remote);
425 P(se.nr_wakeups_affine);
426 P(se.nr_wakeups_affine_attempts);
427 P(se.nr_wakeups_passive);
428 P(se.nr_wakeups_idle);
429
430 {
431 u64 avg_atom, avg_per_cpu;
432
433 avg_atom = p->se.sum_exec_runtime;
434 if (nr_switches)
435 do_div(avg_atom, nr_switches);
436 else
437 avg_atom = -1LL;
438
439 avg_per_cpu = p->se.sum_exec_runtime;
Ingo Molnarc1a89742007-11-28 15:52:56 +0100440 if (p->se.nr_migrations) {
Roman Zippel6f6d6a12008-05-01 04:34:28 -0700441 avg_per_cpu = div64_u64(avg_per_cpu,
442 p->se.nr_migrations);
Ingo Molnarc1a89742007-11-28 15:52:56 +0100443 } else {
Ingo Molnarcc367732007-10-15 17:00:18 +0200444 avg_per_cpu = -1LL;
Ingo Molnarc1a89742007-11-28 15:52:56 +0100445 }
Ingo Molnarcc367732007-10-15 17:00:18 +0200446
447 __PN(avg_atom);
448 __PN(avg_per_cpu);
449 }
Ingo Molnar6cfb0d52007-08-02 17:41:40 +0200450#endif
Ingo Molnarcc367732007-10-15 17:00:18 +0200451 __P(nr_switches);
Ingo Molnar2d92f222007-10-15 17:00:18 +0200452 SEQ_printf(m, "%-35s:%21Ld\n",
Ingo Molnarcc367732007-10-15 17:00:18 +0200453 "nr_voluntary_switches", (long long)p->nvcsw);
454 SEQ_printf(m, "%-35s:%21Ld\n",
455 "nr_involuntary_switches", (long long)p->nivcsw);
456
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200457 P(se.load.weight);
458 P(policy);
459 P(prio);
Ingo Molnaref83a572007-10-15 17:00:08 +0200460#undef PN
Ingo Molnarcc367732007-10-15 17:00:18 +0200461#undef __PN
462#undef P
463#undef __P
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200464
465 {
Ingo Molnar29d7b902008-11-16 08:07:15 +0100466 unsigned int this_cpu = raw_smp_processor_id();
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200467 u64 t0, t1;
468
Ingo Molnar29d7b902008-11-16 08:07:15 +0100469 t0 = cpu_clock(this_cpu);
470 t1 = cpu_clock(this_cpu);
Ingo Molnar2d92f222007-10-15 17:00:18 +0200471 SEQ_printf(m, "%-35s:%21Ld\n",
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200472 "clock-delta", (long long)(t1-t0));
473 }
474}
475
476void proc_sched_set_task(struct task_struct *p)
477{
Ingo Molnar6cfb0d52007-08-02 17:41:40 +0200478#ifdef CONFIG_SCHEDSTATS
Ingo Molnarcc367732007-10-15 17:00:18 +0200479 p->se.wait_max = 0;
Arjan van de Ven6d082592008-01-25 21:08:35 +0100480 p->se.wait_sum = 0;
481 p->se.wait_count = 0;
Ingo Molnarcc367732007-10-15 17:00:18 +0200482 p->se.sleep_max = 0;
483 p->se.sum_sleep_runtime = 0;
484 p->se.block_max = 0;
485 p->se.exec_max = 0;
486 p->se.slice_max = 0;
487 p->se.nr_migrations = 0;
488 p->se.nr_migrations_cold = 0;
489 p->se.nr_failed_migrations_affine = 0;
490 p->se.nr_failed_migrations_running = 0;
491 p->se.nr_failed_migrations_hot = 0;
492 p->se.nr_forced_migrations = 0;
493 p->se.nr_forced2_migrations = 0;
494 p->se.nr_wakeups = 0;
495 p->se.nr_wakeups_sync = 0;
496 p->se.nr_wakeups_migrate = 0;
497 p->se.nr_wakeups_local = 0;
498 p->se.nr_wakeups_remote = 0;
499 p->se.nr_wakeups_affine = 0;
500 p->se.nr_wakeups_affine_attempts = 0;
501 p->se.nr_wakeups_passive = 0;
502 p->se.nr_wakeups_idle = 0;
503 p->sched_info.bkl_count = 0;
Ingo Molnar6cfb0d52007-08-02 17:41:40 +0200504#endif
Ingo Molnarcc367732007-10-15 17:00:18 +0200505 p->se.sum_exec_runtime = 0;
506 p->se.prev_sum_exec_runtime = 0;
507 p->nvcsw = 0;
508 p->nivcsw = 0;
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200509}