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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
Lucas De Marchi41acab82010-03-10 23:37:45 -030073 PN(se->statistics.wait_start);
74 PN(se->statistics.sleep_start);
75 PN(se->statistics.block_start);
76 PN(se->statistics.sleep_max);
77 PN(se->statistics.block_max);
78 PN(se->statistics.exec_max);
79 PN(se->statistics.slice_max);
80 PN(se->statistics.wait_max);
81 PN(se->statistics.wait_sum);
82 P(se->statistics.wait_count);
Bharata B Raoff9b48c2008-11-10 21:34:09 +053083#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),
Lucas De Marchi41acab82010-03-10 23:37:45 -0300107 SPLIT_NS(p->se.statistics.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
Li Zefanb6293172010-04-22 17:30:40 +0800117 rcu_read_lock();
Peter Zijlstrad19ca302008-04-19 19:45:00 +0200118 cgroup_path(task_group(p)->css.cgroup, path, sizeof(path));
Li Zefanb6293172010-04-22 17:30:40 +0800119 rcu_read_unlock();
Peter Zijlstrad19ca302008-04-19 19:45:00 +0200120 SEQ_printf(m, " %s", path);
121 }
122#endif
123 SEQ_printf(m, "\n");
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200124}
125
Ingo Molnara48da482007-08-09 11:16:51 +0200126static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu)
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200127{
128 struct task_struct *g, *p;
Peter Zijlstraab63a632007-10-25 14:02:45 +0200129 unsigned long flags;
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200130
131 SEQ_printf(m,
132 "\nrunnable tasks:\n"
Mike Galbraithc86da3a2007-10-15 17:00:08 +0200133 " task PID tree-key switches prio"
134 " exec-runtime sum-exec sum-sleep\n"
Ingo Molnar1a75b942007-10-15 17:00:08 +0200135 "------------------------------------------------------"
Mike Galbraithc86da3a2007-10-15 17:00:08 +0200136 "----------------------------------------------------\n");
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200137
Peter Zijlstraab63a632007-10-25 14:02:45 +0200138 read_lock_irqsave(&tasklist_lock, flags);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200139
140 do_each_thread(g, p) {
141 if (!p->se.on_rq || task_cpu(p) != rq_cpu)
142 continue;
143
Ingo Molnara48da482007-08-09 11:16:51 +0200144 print_task(m, rq, p);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200145 } while_each_thread(g, p);
146
Peter Zijlstraab63a632007-10-25 14:02:45 +0200147 read_unlock_irqrestore(&tasklist_lock, flags);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200148}
149
Li Zefan805194c2009-01-10 15:43:15 +0800150#if defined(CONFIG_CGROUP_SCHED) && \
151 (defined(CONFIG_FAIR_GROUP_SCHED) || defined(CONFIG_RT_GROUP_SCHED))
152static void task_group_path(struct task_group *tg, char *buf, int buflen)
153{
154 /* may be NULL if the underlying cgroup isn't fully-created yet */
155 if (!tg->css.cgroup) {
156 buf[0] = '\0';
157 return;
158 }
159 cgroup_path(tg->css.cgroup, buf, buflen);
160}
161#endif
162
Ingo Molnar5cef9ec2007-08-09 11:16:47 +0200163void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200164{
Ingo Molnar86d95602007-10-15 17:00:06 +0200165 s64 MIN_vruntime = -1, min_vruntime, max_vruntime = -1,
166 spread, rq0_min_vruntime, spread0;
Hitoshi Mitake348ec612009-06-17 22:20:55 +0900167 struct rq *rq = cpu_rq(cpu);
Ingo Molnar67e12ea2007-10-15 17:00:05 +0200168 struct sched_entity *last;
169 unsigned long flags;
170
Peter Zijlstraada18de2008-06-19 14:22:24 +0200171#if defined(CONFIG_CGROUP_SCHED) && defined(CONFIG_FAIR_GROUP_SCHED)
Li Zefan805194c2009-01-10 15:43:15 +0800172 char path[128];
Peter Zijlstrad19ca302008-04-19 19:45:00 +0200173 struct task_group *tg = cfs_rq->tg;
174
Li Zefan805194c2009-01-10 15:43:15 +0800175 task_group_path(tg, path, sizeof(path));
Peter Zijlstrad19ca302008-04-19 19:45:00 +0200176
177 SEQ_printf(m, "\ncfs_rq[%d]:%s\n", cpu, path);
Peter Zijlstraada18de2008-06-19 14:22:24 +0200178#else
179 SEQ_printf(m, "\ncfs_rq[%d]:\n", cpu);
Peter Zijlstrad19ca302008-04-19 19:45:00 +0200180#endif
Ingo Molnaref83a572007-10-15 17:00:08 +0200181 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "exec_clock",
182 SPLIT_NS(cfs_rq->exec_clock));
Ingo Molnar67e12ea2007-10-15 17:00:05 +0200183
Thomas Gleixner05fa7852009-11-17 14:28:38 +0100184 raw_spin_lock_irqsave(&rq->lock, flags);
Ingo Molnar67e12ea2007-10-15 17:00:05 +0200185 if (cfs_rq->rb_leftmost)
186 MIN_vruntime = (__pick_next_entity(cfs_rq))->vruntime;
187 last = __pick_last_entity(cfs_rq);
188 if (last)
189 max_vruntime = last->vruntime;
Peter Zijlstra5ac5c4d2008-11-10 10:46:32 +0100190 min_vruntime = cfs_rq->min_vruntime;
Hitoshi Mitake348ec612009-06-17 22:20:55 +0900191 rq0_min_vruntime = cpu_rq(0)->cfs.min_vruntime;
Thomas Gleixner05fa7852009-11-17 14:28:38 +0100192 raw_spin_unlock_irqrestore(&rq->lock, flags);
Ingo Molnaref83a572007-10-15 17:00:08 +0200193 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "MIN_vruntime",
194 SPLIT_NS(MIN_vruntime));
195 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "min_vruntime",
196 SPLIT_NS(min_vruntime));
197 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "max_vruntime",
198 SPLIT_NS(max_vruntime));
Ingo Molnar67e12ea2007-10-15 17:00:05 +0200199 spread = max_vruntime - MIN_vruntime;
Ingo Molnaref83a572007-10-15 17:00:08 +0200200 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "spread",
201 SPLIT_NS(spread));
Ingo Molnar86d95602007-10-15 17:00:06 +0200202 spread0 = min_vruntime - rq0_min_vruntime;
Ingo Molnaref83a572007-10-15 17:00:08 +0200203 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "spread0",
204 SPLIT_NS(spread0));
Peter Zijlstra5ac5c4d2008-11-10 10:46:32 +0100205 SEQ_printf(m, " .%-30s: %d\n", "nr_spread_over",
Peter Zijlstraddc97292007-10-15 17:00:10 +0200206 cfs_rq->nr_spread_over);
Peter Zijlstra2069dd72010-11-15 15:47:00 -0800207 SEQ_printf(m, " .%-30s: %ld\n", "nr_running", cfs_rq->nr_running);
208 SEQ_printf(m, " .%-30s: %ld\n", "load", cfs_rq->load.weight);
Peter Zijlstrac09595f2008-06-27 13:41:14 +0200209#ifdef CONFIG_FAIR_GROUP_SCHED
210#ifdef CONFIG_SMP
Peter Zijlstra2069dd72010-11-15 15:47:00 -0800211 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "load_avg",
212 SPLIT_NS(cfs_rq->load_avg));
213 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "load_period",
214 SPLIT_NS(cfs_rq->load_period));
215 SEQ_printf(m, " .%-30s: %ld\n", "load_contrib",
216 cfs_rq->load_contribution);
217 SEQ_printf(m, " .%-30s: %d\n", "load_tg",
218 atomic_read(&tg->load_weight));
Peter Zijlstrac09595f2008-06-27 13:41:14 +0200219#endif
Peter Zijlstra2069dd72010-11-15 15:47:00 -0800220
Bharata B Raoff9b48c2008-11-10 21:34:09 +0530221 print_cfs_group_stats(m, cpu, cfs_rq->tg);
Peter Zijlstrac09595f2008-06-27 13:41:14 +0200222#endif
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200223}
224
Peter Zijlstraada18de2008-06-19 14:22:24 +0200225void print_rt_rq(struct seq_file *m, int cpu, struct rt_rq *rt_rq)
226{
227#if defined(CONFIG_CGROUP_SCHED) && defined(CONFIG_RT_GROUP_SCHED)
Li Zefan805194c2009-01-10 15:43:15 +0800228 char path[128];
Peter Zijlstraada18de2008-06-19 14:22:24 +0200229 struct task_group *tg = rt_rq->tg;
230
Li Zefan805194c2009-01-10 15:43:15 +0800231 task_group_path(tg, path, sizeof(path));
Peter Zijlstraada18de2008-06-19 14:22:24 +0200232
233 SEQ_printf(m, "\nrt_rq[%d]:%s\n", cpu, path);
234#else
235 SEQ_printf(m, "\nrt_rq[%d]:\n", cpu);
236#endif
237
238
239#define P(x) \
240 SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rt_rq->x))
241#define PN(x) \
242 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rt_rq->x))
243
244 P(rt_nr_running);
245 P(rt_throttled);
246 PN(rt_time);
247 PN(rt_runtime);
248
249#undef PN
250#undef P
251}
252
Ingo Molnara48da482007-08-09 11:16:51 +0200253static void print_cpu(struct seq_file *m, int cpu)
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200254{
Hitoshi Mitake348ec612009-06-17 22:20:55 +0900255 struct rq *rq = cpu_rq(cpu);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200256
257#ifdef CONFIG_X86
258 {
259 unsigned int freq = cpu_khz ? : 1;
260
261 SEQ_printf(m, "\ncpu#%d, %u.%03u MHz\n",
262 cpu, freq / 1000, (freq % 1000));
263 }
264#else
265 SEQ_printf(m, "\ncpu#%d\n", cpu);
266#endif
267
268#define P(x) \
269 SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rq->x))
Ingo Molnaref83a572007-10-15 17:00:08 +0200270#define PN(x) \
271 SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rq->x))
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200272
273 P(nr_running);
274 SEQ_printf(m, " .%-30s: %lu\n", "load",
Dmitry Adamushko495eca42007-10-15 17:00:06 +0200275 rq->load.weight);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200276 P(nr_switches);
277 P(nr_load_updates);
278 P(nr_uninterruptible);
Ingo Molnaref83a572007-10-15 17:00:08 +0200279 PN(next_balance);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200280 P(curr->pid);
Ingo Molnaref83a572007-10-15 17:00:08 +0200281 PN(clock);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200282 P(cpu_load[0]);
283 P(cpu_load[1]);
284 P(cpu_load[2]);
285 P(cpu_load[3]);
286 P(cpu_load[4]);
287#undef P
Ingo Molnaref83a572007-10-15 17:00:08 +0200288#undef PN
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200289
Peter Zijlstra5ac5c4d2008-11-10 10:46:32 +0100290#ifdef CONFIG_SCHEDSTATS
291#define P(n) SEQ_printf(m, " .%-30s: %d\n", #n, rq->n);
Mike Galbraith1b9508f2009-11-04 17:53:50 +0100292#define P64(n) SEQ_printf(m, " .%-30s: %Ld\n", #n, rq->n);
Peter Zijlstra5ac5c4d2008-11-10 10:46:32 +0100293
Peter Zijlstra5ac5c4d2008-11-10 10:46:32 +0100294 P(yld_count);
295
296 P(sched_switch);
297 P(sched_count);
298 P(sched_goidle);
Mike Galbraith1b9508f2009-11-04 17:53:50 +0100299#ifdef CONFIG_SMP
300 P64(avg_idle);
301#endif
Peter Zijlstra5ac5c4d2008-11-10 10:46:32 +0100302
303 P(ttwu_count);
304 P(ttwu_local);
305
306 P(bkl_count);
307
308#undef P
309#endif
Ingo Molnar5cef9ec2007-08-09 11:16:47 +0200310 print_cfs_stats(m, cpu);
Peter Zijlstraada18de2008-06-19 14:22:24 +0200311 print_rt_stats(m, cpu);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200312
Ingo Molnara48da482007-08-09 11:16:51 +0200313 print_rq(m, rq, cpu);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200314}
315
Christian Ehrhardt1983a922009-11-30 12:16:47 +0100316static const char *sched_tunable_scaling_names[] = {
317 "none",
318 "logaritmic",
319 "linear"
320};
321
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200322static int sched_debug_show(struct seq_file *m, void *v)
323{
324 u64 now = ktime_to_ns(ktime_get());
325 int cpu;
326
Luis Henriques67aa0f72009-03-24 22:10:02 +0000327 SEQ_printf(m, "Sched Debug Version: v0.09, %s %.*s\n",
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200328 init_utsname()->release,
329 (int)strcspn(init_utsname()->version, " "),
330 init_utsname()->version);
331
Ingo Molnaref83a572007-10-15 17:00:08 +0200332 SEQ_printf(m, "now at %Lu.%06ld msecs\n", SPLIT_NS(now));
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200333
Ingo Molnar1aa47312007-10-15 17:00:10 +0200334#define P(x) \
Ingo Molnard822cec2007-10-15 17:00:10 +0200335 SEQ_printf(m, " .%-40s: %Ld\n", #x, (long long)(x))
Ingo Molnar1aa47312007-10-15 17:00:10 +0200336#define PN(x) \
Ingo Molnard822cec2007-10-15 17:00:10 +0200337 SEQ_printf(m, " .%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x))
Luis Henriquesaf66df52009-03-18 00:04:25 +0000338 P(jiffies);
Ingo Molnar1aa47312007-10-15 17:00:10 +0200339 PN(sysctl_sched_latency);
Peter Zijlstrab2be5e92007-11-09 22:39:37 +0100340 PN(sysctl_sched_min_granularity);
Ingo Molnar1aa47312007-10-15 17:00:10 +0200341 PN(sysctl_sched_wakeup_granularity);
Josh Hunteebef742010-07-19 12:31:16 -0700342 P(sysctl_sched_child_runs_first);
Ingo Molnar1aa47312007-10-15 17:00:10 +0200343 P(sysctl_sched_features);
344#undef PN
345#undef P
346
Christian Ehrhardt1983a922009-11-30 12:16:47 +0100347 SEQ_printf(m, " .%-40s: %d (%s)\n", "sysctl_sched_tunable_scaling",
348 sysctl_sched_tunable_scaling,
349 sched_tunable_scaling_names[sysctl_sched_tunable_scaling]);
350
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200351 for_each_online_cpu(cpu)
Ingo Molnara48da482007-08-09 11:16:51 +0200352 print_cpu(m, cpu);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200353
354 SEQ_printf(m, "\n");
355
356 return 0;
357}
358
Josh Triplettf33734612007-07-26 13:40:43 +0200359static void sysrq_sched_debug_show(void)
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200360{
361 sched_debug_show(NULL, NULL);
362}
363
364static int sched_debug_open(struct inode *inode, struct file *filp)
365{
366 return single_open(filp, sched_debug_show, NULL);
367}
368
Arjan van de Ven0dbee3a2007-10-15 17:00:19 +0200369static const struct file_operations sched_debug_fops = {
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200370 .open = sched_debug_open,
371 .read = seq_read,
372 .llseek = seq_lseek,
Alexey Dobriyan5ea473a2007-07-31 00:38:50 -0700373 .release = single_release,
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200374};
375
376static int __init init_sched_debug_procfs(void)
377{
378 struct proc_dir_entry *pe;
379
Li Zefana9cf4dd2008-10-30 15:23:34 +0800380 pe = proc_create("sched_debug", 0444, NULL, &sched_debug_fops);
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200381 if (!pe)
382 return -ENOMEM;
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200383 return 0;
384}
385
386__initcall(init_sched_debug_procfs);
387
388void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
389{
Ingo Molnarcc367732007-10-15 17:00:18 +0200390 unsigned long nr_switches;
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200391
Oleg Nesterov5089a972010-05-26 14:43:22 -0700392 SEQ_printf(m, "%s (%d, #threads: %d)\n", p->comm, p->pid,
393 get_nr_threads(p));
Ingo Molnar2d92f222007-10-15 17:00:18 +0200394 SEQ_printf(m,
395 "---------------------------------------------------------\n");
Ingo Molnarcc367732007-10-15 17:00:18 +0200396#define __P(F) \
397 SEQ_printf(m, "%-35s:%21Ld\n", #F, (long long)F)
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200398#define P(F) \
Ingo Molnar2d92f222007-10-15 17:00:18 +0200399 SEQ_printf(m, "%-35s:%21Ld\n", #F, (long long)p->F)
Ingo Molnarcc367732007-10-15 17:00:18 +0200400#define __PN(F) \
401 SEQ_printf(m, "%-35s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)F))
Ingo Molnaref83a572007-10-15 17:00:08 +0200402#define PN(F) \
Ingo Molnar2d92f222007-10-15 17:00:18 +0200403 SEQ_printf(m, "%-35s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F))
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200404
Ingo Molnaref83a572007-10-15 17:00:08 +0200405 PN(se.exec_start);
406 PN(se.vruntime);
407 PN(se.sum_exec_runtime);
Ingo Molnar6cfb0d52007-08-02 17:41:40 +0200408
Ingo Molnarcc367732007-10-15 17:00:18 +0200409 nr_switches = p->nvcsw + p->nivcsw;
410
Ingo Molnar6cfb0d52007-08-02 17:41:40 +0200411#ifdef CONFIG_SCHEDSTATS
Lucas De Marchi41acab82010-03-10 23:37:45 -0300412 PN(se.statistics.wait_start);
413 PN(se.statistics.sleep_start);
414 PN(se.statistics.block_start);
415 PN(se.statistics.sleep_max);
416 PN(se.statistics.block_max);
417 PN(se.statistics.exec_max);
418 PN(se.statistics.slice_max);
419 PN(se.statistics.wait_max);
420 PN(se.statistics.wait_sum);
421 P(se.statistics.wait_count);
422 PN(se.statistics.iowait_sum);
423 P(se.statistics.iowait_count);
Ingo Molnar2d723762007-10-15 17:00:12 +0200424 P(sched_info.bkl_count);
Ingo Molnarcc367732007-10-15 17:00:18 +0200425 P(se.nr_migrations);
Lucas De Marchi41acab82010-03-10 23:37:45 -0300426 P(se.statistics.nr_migrations_cold);
427 P(se.statistics.nr_failed_migrations_affine);
428 P(se.statistics.nr_failed_migrations_running);
429 P(se.statistics.nr_failed_migrations_hot);
430 P(se.statistics.nr_forced_migrations);
431 P(se.statistics.nr_wakeups);
432 P(se.statistics.nr_wakeups_sync);
433 P(se.statistics.nr_wakeups_migrate);
434 P(se.statistics.nr_wakeups_local);
435 P(se.statistics.nr_wakeups_remote);
436 P(se.statistics.nr_wakeups_affine);
437 P(se.statistics.nr_wakeups_affine_attempts);
438 P(se.statistics.nr_wakeups_passive);
439 P(se.statistics.nr_wakeups_idle);
Ingo Molnarcc367732007-10-15 17:00:18 +0200440
441 {
442 u64 avg_atom, avg_per_cpu;
443
444 avg_atom = p->se.sum_exec_runtime;
445 if (nr_switches)
446 do_div(avg_atom, nr_switches);
447 else
448 avg_atom = -1LL;
449
450 avg_per_cpu = p->se.sum_exec_runtime;
Ingo Molnarc1a89742007-11-28 15:52:56 +0100451 if (p->se.nr_migrations) {
Roman Zippel6f6d6a12008-05-01 04:34:28 -0700452 avg_per_cpu = div64_u64(avg_per_cpu,
453 p->se.nr_migrations);
Ingo Molnarc1a89742007-11-28 15:52:56 +0100454 } else {
Ingo Molnarcc367732007-10-15 17:00:18 +0200455 avg_per_cpu = -1LL;
Ingo Molnarc1a89742007-11-28 15:52:56 +0100456 }
Ingo Molnarcc367732007-10-15 17:00:18 +0200457
458 __PN(avg_atom);
459 __PN(avg_per_cpu);
460 }
Ingo Molnar6cfb0d52007-08-02 17:41:40 +0200461#endif
Ingo Molnarcc367732007-10-15 17:00:18 +0200462 __P(nr_switches);
Ingo Molnar2d92f222007-10-15 17:00:18 +0200463 SEQ_printf(m, "%-35s:%21Ld\n",
Ingo Molnarcc367732007-10-15 17:00:18 +0200464 "nr_voluntary_switches", (long long)p->nvcsw);
465 SEQ_printf(m, "%-35s:%21Ld\n",
466 "nr_involuntary_switches", (long long)p->nivcsw);
467
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200468 P(se.load.weight);
469 P(policy);
470 P(prio);
Ingo Molnaref83a572007-10-15 17:00:08 +0200471#undef PN
Ingo Molnarcc367732007-10-15 17:00:18 +0200472#undef __PN
473#undef P
474#undef __P
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200475
476 {
Ingo Molnar29d7b902008-11-16 08:07:15 +0100477 unsigned int this_cpu = raw_smp_processor_id();
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200478 u64 t0, t1;
479
Ingo Molnar29d7b902008-11-16 08:07:15 +0100480 t0 = cpu_clock(this_cpu);
481 t1 = cpu_clock(this_cpu);
Ingo Molnar2d92f222007-10-15 17:00:18 +0200482 SEQ_printf(m, "%-35s:%21Ld\n",
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200483 "clock-delta", (long long)(t1-t0));
484 }
485}
486
487void proc_sched_set_task(struct task_struct *p)
488{
Ingo Molnar6cfb0d52007-08-02 17:41:40 +0200489#ifdef CONFIG_SCHEDSTATS
Lucas De Marchi41acab82010-03-10 23:37:45 -0300490 memset(&p->se.statistics, 0, sizeof(p->se.statistics));
Ingo Molnar6cfb0d52007-08-02 17:41:40 +0200491#endif
Ingo Molnar43ae34c2007-07-09 18:52:00 +0200492}