blob: 82fa93b4db9996d3af08d72b71934053107d70ef [file] [log] [blame]
Ingo Molnarbf9e1872009-06-02 23:37:05 +02001/*
2 * builtin-report.c
3 *
4 * Builtin report command: Analyze the perf.data input file,
5 * look up and read DSOs and symbol information and display
6 * a histogram of results, along various sorting keys.
7 */
Ingo Molnar16f762a2009-05-27 09:10:38 +02008#include "builtin.h"
Ingo Molnar53cb8bc2009-05-26 09:17:18 +02009
Ingo Molnarbf9e1872009-06-02 23:37:05 +020010#include "util/util.h"
11
Ingo Molnar8fc03212009-06-04 15:19:47 +020012#include "util/color.h"
Arnaldo Carvalho de Melo35a50c82009-05-18 16:24:49 -030013#include "util/list.h"
Ingo Molnara930d2c2009-05-27 09:50:13 +020014#include "util/cache.h"
Arnaldo Carvalho de Melo35a50c82009-05-18 16:24:49 -030015#include "util/rbtree.h"
Arnaldo Carvalho de Meloa2928c42009-05-28 14:55:04 -030016#include "util/symbol.h"
Arnaldo Carvalho de Meloa0055ae2009-06-01 17:50:19 -030017#include "util/string.h"
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030018
Ingo Molnar53cb8bc2009-05-26 09:17:18 +020019#include "perf.h"
20
21#include "util/parse-options.h"
22#include "util/parse-events.h"
23
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030024#define SHOW_KERNEL 1
25#define SHOW_USER 2
26#define SHOW_HV 4
27
Ingo Molnar23ac9cb2009-05-27 09:33:18 +020028static char const *input_name = "perf.data";
Peter Zijlstra450aaa22009-05-27 20:20:23 +020029static char *vmlinux = NULL;
Ingo Molnarbd741372009-06-04 14:13:04 +020030
31static char default_sort_order[] = "comm,dso";
32static char *sort_order = default_sort_order;
33
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030034static int input;
35static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV;
36
Ingo Molnar97b07b62009-05-26 18:48:58 +020037static int dump_trace = 0;
Ingo Molnar35029732009-06-03 09:38:58 +020038#define dprintf(x...) do { if (dump_trace) printf(x); } while (0)
39
Ingo Molnar16f762a2009-05-27 09:10:38 +020040static int verbose;
Arnaldo Carvalho de Melob78c07d2009-05-29 13:48:59 -030041static int full_paths;
Ingo Molnar97b07b62009-05-26 18:48:58 +020042
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030043static unsigned long page_size;
44static unsigned long mmap_window = 32;
45
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030046struct ip_event {
47 struct perf_event_header header;
48 __u64 ip;
49 __u32 pid, tid;
Peter Zijlstra4502d772009-06-10 15:03:06 +020050 __u64 period;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030051};
Ingo Molnar75051722009-06-03 23:14:49 +020052
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030053struct mmap_event {
54 struct perf_event_header header;
55 __u32 pid, tid;
56 __u64 start;
57 __u64 len;
58 __u64 pgoff;
59 char filename[PATH_MAX];
60};
Ingo Molnar75051722009-06-03 23:14:49 +020061
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030062struct comm_event {
63 struct perf_event_header header;
Ingo Molnar75051722009-06-03 23:14:49 +020064 __u32 pid, tid;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030065 char comm[16];
66};
67
Peter Zijlstra62fc4452009-06-04 16:53:49 +020068struct fork_event {
69 struct perf_event_header header;
70 __u32 pid, ppid;
71};
72
Ingo Molnarb2fef072009-06-05 18:07:51 +020073struct period_event {
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030074 struct perf_event_header header;
Ingo Molnarb2fef072009-06-05 18:07:51 +020075 __u64 time;
76 __u64 id;
77 __u64 sample_period;
78};
79
80typedef union event_union {
81 struct perf_event_header header;
82 struct ip_event ip;
83 struct mmap_event mmap;
84 struct comm_event comm;
85 struct fork_event fork;
86 struct period_event period;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030087} event_t;
88
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030089static LIST_HEAD(dsos);
90static struct dso *kernel_dso;
Peter Zijlstrafc54db52009-06-05 14:04:59 +020091static struct dso *vdso;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030092
93static void dsos__add(struct dso *dso)
94{
95 list_add_tail(&dso->node, &dsos);
96}
97
98static struct dso *dsos__find(const char *name)
99{
100 struct dso *pos;
101
102 list_for_each_entry(pos, &dsos, node)
103 if (strcmp(pos->name, name) == 0)
104 return pos;
105 return NULL;
106}
107
108static struct dso *dsos__findnew(const char *name)
109{
110 struct dso *dso = dsos__find(name);
Peter Zijlstrab7a16ea2009-05-27 13:35:35 +0200111 int nr;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300112
Ingo Molnar4593bba2009-06-02 15:34:25 +0200113 if (dso)
114 return dso;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300115
Ingo Molnar4593bba2009-06-02 15:34:25 +0200116 dso = dso__new(name, 0);
117 if (!dso)
118 goto out_delete_dso;
Peter Zijlstrab7a16ea2009-05-27 13:35:35 +0200119
Ingo Molnarbd741372009-06-04 14:13:04 +0200120 nr = dso__load(dso, NULL, verbose);
Ingo Molnar4593bba2009-06-02 15:34:25 +0200121 if (nr < 0) {
Ingo Molnarbd741372009-06-04 14:13:04 +0200122 if (verbose)
123 fprintf(stderr, "Failed to open: %s\n", name);
Ingo Molnar4593bba2009-06-02 15:34:25 +0200124 goto out_delete_dso;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300125 }
Ingo Molnar4593bba2009-06-02 15:34:25 +0200126 if (!nr && verbose) {
127 fprintf(stderr,
128 "No symbols found in: %s, maybe install a debug package?\n",
129 name);
130 }
131
132 dsos__add(dso);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300133
134 return dso;
135
136out_delete_dso:
137 dso__delete(dso);
138 return NULL;
139}
140
Ingo Molnar16f762a2009-05-27 09:10:38 +0200141static void dsos__fprintf(FILE *fp)
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300142{
143 struct dso *pos;
144
145 list_for_each_entry(pos, &dsos, node)
146 dso__fprintf(pos, fp);
147}
148
Ingo Molnar729ff5e22009-06-11 14:16:15 +0200149static struct symbol *vdso__find_symbol(struct dso *dso, __u64 ip)
Peter Zijlstrafc54db52009-06-05 14:04:59 +0200150{
151 return dso__find_symbol(kernel_dso, ip);
152}
153
Peter Zijlstra450aaa22009-05-27 20:20:23 +0200154static int load_kernel(void)
155{
Arnaldo Carvalho de Meloa827c872009-05-28 14:55:19 -0300156 int err;
Peter Zijlstra450aaa22009-05-27 20:20:23 +0200157
Arnaldo Carvalho de Melo0085c9542009-05-28 14:55:13 -0300158 kernel_dso = dso__new("[kernel]", 0);
Peter Zijlstra450aaa22009-05-27 20:20:23 +0200159 if (!kernel_dso)
Arnaldo Carvalho de Meloa2928c42009-05-28 14:55:04 -0300160 return -1;
Peter Zijlstra450aaa22009-05-27 20:20:23 +0200161
Ingo Molnarbd741372009-06-04 14:13:04 +0200162 err = dso__load_kernel(kernel_dso, vmlinux, NULL, verbose);
Arnaldo Carvalho de Meloa2928c42009-05-28 14:55:04 -0300163 if (err) {
164 dso__delete(kernel_dso);
165 kernel_dso = NULL;
166 } else
167 dsos__add(kernel_dso);
Peter Zijlstra450aaa22009-05-27 20:20:23 +0200168
Peter Zijlstrafc54db52009-06-05 14:04:59 +0200169 vdso = dso__new("[vdso]", 0);
170 if (!vdso)
171 return -1;
172
173 vdso->find_symbol = vdso__find_symbol;
174
175 dsos__add(vdso);
176
Arnaldo Carvalho de Meloa2928c42009-05-28 14:55:04 -0300177 return err;
Peter Zijlstra450aaa22009-05-27 20:20:23 +0200178}
179
Ingo Molnard80d3382009-06-03 23:14:49 +0200180static char __cwd[PATH_MAX];
181static char *cwd = __cwd;
182static int cwdlen;
183
184static int strcommon(const char *pathname)
Arnaldo Carvalho de Melob78c07d2009-05-29 13:48:59 -0300185{
186 int n = 0;
187
188 while (pathname[n] == cwd[n] && n < cwdlen)
189 ++n;
190
191 return n;
192}
193
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300194struct map {
195 struct list_head node;
Ingo Molnar729ff5e22009-06-11 14:16:15 +0200196 __u64 start;
197 __u64 end;
198 __u64 pgoff;
199 __u64 (*map_ip)(struct map *, __u64);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300200 struct dso *dso;
201};
202
Ingo Molnar729ff5e22009-06-11 14:16:15 +0200203static __u64 map__map_ip(struct map *map, __u64 ip)
Peter Zijlstrafc54db52009-06-05 14:04:59 +0200204{
205 return ip - map->start + map->pgoff;
206}
207
Ingo Molnar729ff5e22009-06-11 14:16:15 +0200208static __u64 vdso__map_ip(struct map *map, __u64 ip)
Peter Zijlstrafc54db52009-06-05 14:04:59 +0200209{
210 return ip;
211}
212
Pekka Enberg80d496b2009-06-08 21:12:48 +0300213static inline int is_anon_memory(const char *filename)
214{
215 return strcmp(filename, "//anon") == 0;
216}
217
Ingo Molnard80d3382009-06-03 23:14:49 +0200218static struct map *map__new(struct mmap_event *event)
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300219{
220 struct map *self = malloc(sizeof(*self));
221
222 if (self != NULL) {
Arnaldo Carvalho de Melob78c07d2009-05-29 13:48:59 -0300223 const char *filename = event->filename;
224 char newfilename[PATH_MAX];
Pekka Enberg80d496b2009-06-08 21:12:48 +0300225 int anon;
Arnaldo Carvalho de Melob78c07d2009-05-29 13:48:59 -0300226
227 if (cwd) {
Ingo Molnard80d3382009-06-03 23:14:49 +0200228 int n = strcommon(filename);
229
Arnaldo Carvalho de Melob78c07d2009-05-29 13:48:59 -0300230 if (n == cwdlen) {
231 snprintf(newfilename, sizeof(newfilename),
232 ".%s", filename + n);
233 filename = newfilename;
234 }
235 }
236
Pekka Enberg80d496b2009-06-08 21:12:48 +0300237 anon = is_anon_memory(filename);
238
239 if (anon) {
240 snprintf(newfilename, sizeof(newfilename), "/tmp/perf-%d.map", event->pid);
241 filename = newfilename;
242 }
243
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300244 self->start = event->start;
245 self->end = event->start + event->len;
246 self->pgoff = event->pgoff;
247
Arnaldo Carvalho de Melob78c07d2009-05-29 13:48:59 -0300248 self->dso = dsos__findnew(filename);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300249 if (self->dso == NULL)
250 goto out_delete;
Peter Zijlstrafc54db52009-06-05 14:04:59 +0200251
Pekka Enberg80d496b2009-06-08 21:12:48 +0300252 if (self->dso == vdso || anon)
Peter Zijlstrafc54db52009-06-05 14:04:59 +0200253 self->map_ip = vdso__map_ip;
254 else
255 self->map_ip = map__map_ip;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300256 }
257 return self;
258out_delete:
259 free(self);
260 return NULL;
261}
262
Peter Zijlstra62fc4452009-06-04 16:53:49 +0200263static struct map *map__clone(struct map *self)
264{
265 struct map *map = malloc(sizeof(*self));
266
267 if (!map)
268 return NULL;
269
270 memcpy(map, self, sizeof(*self));
271
272 return map;
273}
274
275static int map__overlap(struct map *l, struct map *r)
276{
277 if (l->start > r->start) {
278 struct map *t = l;
279 l = r;
280 r = t;
281 }
282
283 if (l->end > r->start)
284 return 1;
285
286 return 0;
287}
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300288
Arnaldo Carvalho de Melo9ac99542009-06-04 13:54:00 -0300289static size_t map__fprintf(struct map *self, FILE *fp)
290{
Ingo Molnar729ff5e22009-06-11 14:16:15 +0200291 return fprintf(fp, " %Lx-%Lx %Lx %s\n",
Arnaldo Carvalho de Melo9ac99542009-06-04 13:54:00 -0300292 self->start, self->end, self->pgoff, self->dso->name);
293}
294
295
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300296struct thread {
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -0300297 struct rb_node rb_node;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300298 struct list_head maps;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300299 pid_t pid;
300 char *comm;
301};
302
303static struct thread *thread__new(pid_t pid)
304{
305 struct thread *self = malloc(sizeof(*self));
306
307 if (self != NULL) {
308 self->pid = pid;
Peter Zijlstra82292892009-06-03 12:37:36 +0200309 self->comm = malloc(32);
Ingo Molnar0a520c62009-06-02 23:24:45 +0200310 if (self->comm)
Peter Zijlstra82292892009-06-03 12:37:36 +0200311 snprintf(self->comm, 32, ":%d", self->pid);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300312 INIT_LIST_HEAD(&self->maps);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300313 }
314
315 return self;
316}
317
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300318static int thread__set_comm(struct thread *self, const char *comm)
319{
Peter Zijlstra82292892009-06-03 12:37:36 +0200320 if (self->comm)
321 free(self->comm);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300322 self->comm = strdup(comm);
323 return self->comm ? 0 : -ENOMEM;
324}
325
Arnaldo Carvalho de Melo9ac99542009-06-04 13:54:00 -0300326static size_t thread__fprintf(struct thread *self, FILE *fp)
327{
328 struct map *pos;
329 size_t ret = fprintf(fp, "Thread %d %s\n", self->pid, self->comm);
330
331 list_for_each_entry(pos, &self->maps, node)
332 ret += map__fprintf(pos, fp);
333
334 return ret;
335}
336
337
Ingo Molnar16f762a2009-05-27 09:10:38 +0200338static struct rb_root threads;
Ingo Molnareed4dcd2009-06-03 19:59:24 +0200339static struct thread *last_match;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300340
341static struct thread *threads__findnew(pid_t pid)
342{
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -0300343 struct rb_node **p = &threads.rb_node;
344 struct rb_node *parent = NULL;
345 struct thread *th;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300346
Ingo Molnareed4dcd2009-06-03 19:59:24 +0200347 /*
348 * Font-end cache - PID lookups come in blocks,
349 * so most of the time we dont have to look up
350 * the full rbtree:
351 */
352 if (last_match && last_match->pid == pid)
353 return last_match;
354
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -0300355 while (*p != NULL) {
356 parent = *p;
357 th = rb_entry(parent, struct thread, rb_node);
358
Ingo Molnareed4dcd2009-06-03 19:59:24 +0200359 if (th->pid == pid) {
360 last_match = th;
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -0300361 return th;
Ingo Molnareed4dcd2009-06-03 19:59:24 +0200362 }
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -0300363
364 if (pid < th->pid)
365 p = &(*p)->rb_left;
366 else
367 p = &(*p)->rb_right;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300368 }
369
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -0300370 th = thread__new(pid);
371 if (th != NULL) {
372 rb_link_node(&th->rb_node, parent, p);
373 rb_insert_color(&th->rb_node, &threads);
Ingo Molnareed4dcd2009-06-03 19:59:24 +0200374 last_match = th;
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -0300375 }
Ingo Molnareed4dcd2009-06-03 19:59:24 +0200376
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -0300377 return th;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300378}
379
380static void thread__insert_map(struct thread *self, struct map *map)
381{
Peter Zijlstra62fc4452009-06-04 16:53:49 +0200382 struct map *pos, *tmp;
383
384 list_for_each_entry_safe(pos, tmp, &self->maps, node) {
385 if (map__overlap(pos, map)) {
386 list_del_init(&pos->node);
387 /* XXX leaks dsos */
388 free(pos);
389 }
390 }
391
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300392 list_add_tail(&map->node, &self->maps);
393}
394
Peter Zijlstra62fc4452009-06-04 16:53:49 +0200395static int thread__fork(struct thread *self, struct thread *parent)
396{
397 struct map *map;
398
399 if (self->comm)
400 free(self->comm);
401 self->comm = strdup(parent->comm);
402 if (!self->comm)
403 return -ENOMEM;
404
405 list_for_each_entry(map, &parent->maps, node) {
406 struct map *new = map__clone(map);
407 if (!new)
408 return -ENOMEM;
409 thread__insert_map(self, new);
410 }
411
412 return 0;
413}
414
Ingo Molnar729ff5e22009-06-11 14:16:15 +0200415static struct map *thread__find_map(struct thread *self, __u64 ip)
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300416{
Ingo Molnar16f762a2009-05-27 09:10:38 +0200417 struct map *pos;
418
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300419 if (self == NULL)
420 return NULL;
421
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300422 list_for_each_entry(pos, &self->maps, node)
423 if (ip >= pos->start && ip <= pos->end)
424 return pos;
425
426 return NULL;
427}
428
Arnaldo Carvalho de Melo9ac99542009-06-04 13:54:00 -0300429static size_t threads__fprintf(FILE *fp)
430{
431 size_t ret = 0;
432 struct rb_node *nd;
433
434 for (nd = rb_first(&threads); nd; nd = rb_next(nd)) {
435 struct thread *pos = rb_entry(nd, struct thread, rb_node);
436
437 ret += thread__fprintf(pos, fp);
438 }
439
440 return ret;
441}
442
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200443/*
444 * histogram, sorted on item, collects counts
445 */
446
447static struct rb_root hist;
448
449struct hist_entry {
450 struct rb_node rb_node;
451
452 struct thread *thread;
453 struct map *map;
454 struct dso *dso;
455 struct symbol *sym;
Ingo Molnar729ff5e22009-06-11 14:16:15 +0200456 __u64 ip;
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200457 char level;
458
Ingo Molnar729ff5e22009-06-11 14:16:15 +0200459 __u64 count;
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200460};
461
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200462/*
463 * configurable sorting bits
464 */
465
466struct sort_entry {
467 struct list_head list;
468
Peter Zijlstraca8cdee2009-05-28 11:08:33 +0200469 char *header;
470
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200471 int64_t (*cmp)(struct hist_entry *, struct hist_entry *);
Peter Zijlstra82292892009-06-03 12:37:36 +0200472 int64_t (*collapse)(struct hist_entry *, struct hist_entry *);
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200473 size_t (*print)(FILE *fp, struct hist_entry *);
474};
475
Peter Zijlstra82292892009-06-03 12:37:36 +0200476/* --sort pid */
477
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200478static int64_t
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200479sort__thread_cmp(struct hist_entry *left, struct hist_entry *right)
480{
481 return right->thread->pid - left->thread->pid;
482}
483
484static size_t
485sort__thread_print(FILE *fp, struct hist_entry *self)
486{
Peter Zijlstra71dd8942009-06-04 15:16:56 +0200487 return fprintf(fp, "%16s:%5d", self->thread->comm ?: "", self->thread->pid);
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200488}
489
490static struct sort_entry sort_thread = {
Peter Zijlstra71dd8942009-06-04 15:16:56 +0200491 .header = " Command: Pid",
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200492 .cmp = sort__thread_cmp,
493 .print = sort__thread_print,
494};
495
Peter Zijlstra82292892009-06-03 12:37:36 +0200496/* --sort comm */
497
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200498static int64_t
Peter Zijlstra992444b2009-05-27 20:20:27 +0200499sort__comm_cmp(struct hist_entry *left, struct hist_entry *right)
500{
Peter Zijlstra82292892009-06-03 12:37:36 +0200501 return right->thread->pid - left->thread->pid;
502}
503
504static int64_t
505sort__comm_collapse(struct hist_entry *left, struct hist_entry *right)
506{
Peter Zijlstra992444b2009-05-27 20:20:27 +0200507 char *comm_l = left->thread->comm;
508 char *comm_r = right->thread->comm;
509
510 if (!comm_l || !comm_r) {
511 if (!comm_l && !comm_r)
512 return 0;
513 else if (!comm_l)
514 return -1;
515 else
516 return 1;
517 }
518
519 return strcmp(comm_l, comm_r);
520}
521
522static size_t
523sort__comm_print(FILE *fp, struct hist_entry *self)
524{
Peter Zijlstra71dd8942009-06-04 15:16:56 +0200525 return fprintf(fp, "%16s", self->thread->comm);
Peter Zijlstra992444b2009-05-27 20:20:27 +0200526}
527
528static struct sort_entry sort_comm = {
Ingo Molnar8edd4282009-06-05 14:13:18 +0200529 .header = " Command",
Peter Zijlstra82292892009-06-03 12:37:36 +0200530 .cmp = sort__comm_cmp,
531 .collapse = sort__comm_collapse,
532 .print = sort__comm_print,
Peter Zijlstra992444b2009-05-27 20:20:27 +0200533};
534
Peter Zijlstra82292892009-06-03 12:37:36 +0200535/* --sort dso */
536
Peter Zijlstra992444b2009-05-27 20:20:27 +0200537static int64_t
Peter Zijlstra55e5ec42009-05-27 20:20:28 +0200538sort__dso_cmp(struct hist_entry *left, struct hist_entry *right)
539{
540 struct dso *dso_l = left->dso;
541 struct dso *dso_r = right->dso;
542
543 if (!dso_l || !dso_r) {
544 if (!dso_l && !dso_r)
545 return 0;
546 else if (!dso_l)
547 return -1;
548 else
549 return 1;
550 }
551
552 return strcmp(dso_l->name, dso_r->name);
553}
554
555static size_t
556sort__dso_print(FILE *fp, struct hist_entry *self)
557{
Ingo Molnar0a520c62009-06-02 23:24:45 +0200558 if (self->dso)
Peter Zijlstra71dd8942009-06-04 15:16:56 +0200559 return fprintf(fp, "%-25s", self->dso->name);
Ingo Molnar0a520c62009-06-02 23:24:45 +0200560
Peter Zijlstra71dd8942009-06-04 15:16:56 +0200561 return fprintf(fp, "%016llx ", (__u64)self->ip);
Peter Zijlstra55e5ec42009-05-27 20:20:28 +0200562}
563
564static struct sort_entry sort_dso = {
Peter Zijlstra71dd8942009-06-04 15:16:56 +0200565 .header = "Shared Object ",
Peter Zijlstra55e5ec42009-05-27 20:20:28 +0200566 .cmp = sort__dso_cmp,
567 .print = sort__dso_print,
568};
569
Peter Zijlstra82292892009-06-03 12:37:36 +0200570/* --sort symbol */
571
Peter Zijlstra55e5ec42009-05-27 20:20:28 +0200572static int64_t
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200573sort__sym_cmp(struct hist_entry *left, struct hist_entry *right)
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300574{
Ingo Molnar729ff5e22009-06-11 14:16:15 +0200575 __u64 ip_l, ip_r;
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200576
577 if (left->sym == right->sym)
578 return 0;
579
580 ip_l = left->sym ? left->sym->start : left->ip;
581 ip_r = right->sym ? right->sym->start : right->ip;
582
583 return (int64_t)(ip_r - ip_l);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300584}
585
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200586static size_t
587sort__sym_print(FILE *fp, struct hist_entry *self)
588{
589 size_t ret = 0;
590
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200591 if (verbose)
Peter Zijlstra71dd8942009-06-04 15:16:56 +0200592 ret += fprintf(fp, "%#018llx ", (__u64)self->ip);
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200593
Ingo Molnar8edd4282009-06-05 14:13:18 +0200594 if (self->sym) {
595 ret += fprintf(fp, "[%c] %s",
596 self->dso == kernel_dso ? 'k' : '.', self->sym->name);
597 } else {
Peter Zijlstra71dd8942009-06-04 15:16:56 +0200598 ret += fprintf(fp, "%#016llx", (__u64)self->ip);
Ingo Molnar8edd4282009-06-05 14:13:18 +0200599 }
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200600
601 return ret;
602}
603
604static struct sort_entry sort_sym = {
Peter Zijlstra71dd8942009-06-04 15:16:56 +0200605 .header = "Symbol",
Peter Zijlstraca8cdee2009-05-28 11:08:33 +0200606 .cmp = sort__sym_cmp,
607 .print = sort__sym_print,
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200608};
609
Peter Zijlstra82292892009-06-03 12:37:36 +0200610static int sort__need_collapse = 0;
611
Peter Zijlstra37f440c2009-05-27 20:20:26 +0200612struct sort_dimension {
Ingo Molnar8edd4282009-06-05 14:13:18 +0200613 char *name;
614 struct sort_entry *entry;
615 int taken;
Peter Zijlstra37f440c2009-05-27 20:20:26 +0200616};
617
618static struct sort_dimension sort_dimensions[] = {
619 { .name = "pid", .entry = &sort_thread, },
Peter Zijlstra992444b2009-05-27 20:20:27 +0200620 { .name = "comm", .entry = &sort_comm, },
Peter Zijlstra55e5ec42009-05-27 20:20:28 +0200621 { .name = "dso", .entry = &sort_dso, },
Peter Zijlstra37f440c2009-05-27 20:20:26 +0200622 { .name = "symbol", .entry = &sort_sym, },
623};
624
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200625static LIST_HEAD(hist_entry__sort_list);
626
Peter Zijlstra37f440c2009-05-27 20:20:26 +0200627static int sort_dimension__add(char *tok)
628{
629 int i;
630
631 for (i = 0; i < ARRAY_SIZE(sort_dimensions); i++) {
632 struct sort_dimension *sd = &sort_dimensions[i];
633
634 if (sd->taken)
635 continue;
636
Ingo Molnar5352f352009-06-03 10:07:39 +0200637 if (strncasecmp(tok, sd->name, strlen(tok)))
Peter Zijlstra37f440c2009-05-27 20:20:26 +0200638 continue;
639
Peter Zijlstra82292892009-06-03 12:37:36 +0200640 if (sd->entry->collapse)
641 sort__need_collapse = 1;
642
Peter Zijlstra37f440c2009-05-27 20:20:26 +0200643 list_add_tail(&sd->entry->list, &hist_entry__sort_list);
644 sd->taken = 1;
Ingo Molnar5352f352009-06-03 10:07:39 +0200645
Peter Zijlstra37f440c2009-05-27 20:20:26 +0200646 return 0;
647 }
648
649 return -ESRCH;
650}
651
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200652static int64_t
653hist_entry__cmp(struct hist_entry *left, struct hist_entry *right)
654{
655 struct sort_entry *se;
656 int64_t cmp = 0;
657
658 list_for_each_entry(se, &hist_entry__sort_list, list) {
659 cmp = se->cmp(left, right);
660 if (cmp)
661 break;
662 }
663
664 return cmp;
665}
666
Peter Zijlstra82292892009-06-03 12:37:36 +0200667static int64_t
668hist_entry__collapse(struct hist_entry *left, struct hist_entry *right)
669{
670 struct sort_entry *se;
671 int64_t cmp = 0;
672
673 list_for_each_entry(se, &hist_entry__sort_list, list) {
674 int64_t (*f)(struct hist_entry *, struct hist_entry *);
675
676 f = se->collapse ?: se->cmp;
677
678 cmp = f(left, right);
679 if (cmp)
680 break;
681 }
682
683 return cmp;
684}
685
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200686static size_t
Ingo Molnar729ff5e22009-06-11 14:16:15 +0200687hist_entry__fprintf(FILE *fp, struct hist_entry *self, __u64 total_samples)
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200688{
689 struct sort_entry *se;
690 size_t ret;
691
692 if (total_samples) {
Ingo Molnar8fc03212009-06-04 15:19:47 +0200693 double percent = self->count * 100.0 / total_samples;
694 char *color = PERF_COLOR_NORMAL;
695
696 /*
Ingo Molnaraefcf372009-06-08 23:15:28 +0200697 * We color high-overhead entries in red, mid-overhead
698 * entries in green - and keep the low overhead places
699 * normal:
Ingo Molnar8fc03212009-06-04 15:19:47 +0200700 */
Ingo Molnaraefcf372009-06-08 23:15:28 +0200701 if (percent >= 5.0) {
Ingo Molnar8fc03212009-06-04 15:19:47 +0200702 color = PERF_COLOR_RED;
Ingo Molnaraefcf372009-06-08 23:15:28 +0200703 } else {
704 if (percent >= 0.5)
705 color = PERF_COLOR_GREEN;
706 }
Ingo Molnar8fc03212009-06-04 15:19:47 +0200707
708 ret = color_fprintf(fp, color, " %6.2f%%",
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200709 (self->count * 100.0) / total_samples);
710 } else
Ingo Molnar729ff5e22009-06-11 14:16:15 +0200711 ret = fprintf(fp, "%12Ld ", self->count);
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200712
Peter Zijlstra71dd8942009-06-04 15:16:56 +0200713 list_for_each_entry(se, &hist_entry__sort_list, list) {
714 fprintf(fp, " ");
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200715 ret += se->print(fp, self);
Peter Zijlstra71dd8942009-06-04 15:16:56 +0200716 }
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200717
718 ret += fprintf(fp, "\n");
719
720 return ret;
721}
722
723/*
724 * collect histogram counts
725 */
726
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200727static int
728hist_entry__add(struct thread *thread, struct map *map, struct dso *dso,
Ingo Molnar729ff5e22009-06-11 14:16:15 +0200729 struct symbol *sym, __u64 ip, char level, __u64 count)
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300730{
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200731 struct rb_node **p = &hist.rb_node;
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300732 struct rb_node *parent = NULL;
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200733 struct hist_entry *he;
734 struct hist_entry entry = {
735 .thread = thread,
736 .map = map,
737 .dso = dso,
738 .sym = sym,
739 .ip = ip,
740 .level = level,
Peter Zijlstraea1900e2009-06-10 21:45:22 +0200741 .count = count,
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200742 };
743 int cmp;
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300744
745 while (*p != NULL) {
746 parent = *p;
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200747 he = rb_entry(parent, struct hist_entry, rb_node);
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300748
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200749 cmp = hist_entry__cmp(&entry, he);
750
751 if (!cmp) {
Peter Zijlstraea1900e2009-06-10 21:45:22 +0200752 he->count += count;
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200753 return 0;
754 }
755
756 if (cmp < 0)
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300757 p = &(*p)->rb_left;
758 else
759 p = &(*p)->rb_right;
760 }
761
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200762 he = malloc(sizeof(*he));
763 if (!he)
764 return -ENOMEM;
765 *he = entry;
766 rb_link_node(&he->rb_node, parent, p);
767 rb_insert_color(&he->rb_node, &hist);
768
769 return 0;
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300770}
771
Peter Zijlstra82292892009-06-03 12:37:36 +0200772static void hist_entry__free(struct hist_entry *he)
773{
774 free(he);
775}
776
777/*
778 * collapse the histogram
779 */
780
781static struct rb_root collapse_hists;
782
783static void collapse__insert_entry(struct hist_entry *he)
784{
785 struct rb_node **p = &collapse_hists.rb_node;
786 struct rb_node *parent = NULL;
787 struct hist_entry *iter;
788 int64_t cmp;
789
790 while (*p != NULL) {
791 parent = *p;
792 iter = rb_entry(parent, struct hist_entry, rb_node);
793
794 cmp = hist_entry__collapse(iter, he);
795
796 if (!cmp) {
797 iter->count += he->count;
798 hist_entry__free(he);
799 return;
800 }
801
802 if (cmp < 0)
803 p = &(*p)->rb_left;
804 else
805 p = &(*p)->rb_right;
806 }
807
808 rb_link_node(&he->rb_node, parent, p);
809 rb_insert_color(&he->rb_node, &collapse_hists);
810}
811
812static void collapse__resort(void)
813{
814 struct rb_node *next;
815 struct hist_entry *n;
816
817 if (!sort__need_collapse)
818 return;
819
820 next = rb_first(&hist);
821 while (next) {
822 n = rb_entry(next, struct hist_entry, rb_node);
823 next = rb_next(&n->rb_node);
824
825 rb_erase(&n->rb_node, &hist);
826 collapse__insert_entry(n);
827 }
828}
829
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200830/*
831 * reverse the map, sort on count.
832 */
833
834static struct rb_root output_hists;
835
836static void output__insert_entry(struct hist_entry *he)
837{
838 struct rb_node **p = &output_hists.rb_node;
839 struct rb_node *parent = NULL;
840 struct hist_entry *iter;
841
842 while (*p != NULL) {
843 parent = *p;
844 iter = rb_entry(parent, struct hist_entry, rb_node);
845
846 if (he->count > iter->count)
847 p = &(*p)->rb_left;
848 else
849 p = &(*p)->rb_right;
850 }
851
852 rb_link_node(&he->rb_node, parent, p);
853 rb_insert_color(&he->rb_node, &output_hists);
854}
855
856static void output__resort(void)
857{
Peter Zijlstra82292892009-06-03 12:37:36 +0200858 struct rb_node *next;
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200859 struct hist_entry *n;
Arnaldo Carvalho de Meloa4c43be2009-06-03 23:02:33 -0300860 struct rb_root *tree = &hist;
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200861
Peter Zijlstra82292892009-06-03 12:37:36 +0200862 if (sort__need_collapse)
Arnaldo Carvalho de Meloa4c43be2009-06-03 23:02:33 -0300863 tree = &collapse_hists;
864
865 next = rb_first(tree);
Peter Zijlstra82292892009-06-03 12:37:36 +0200866
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200867 while (next) {
868 n = rb_entry(next, struct hist_entry, rb_node);
869 next = rb_next(&n->rb_node);
870
Arnaldo Carvalho de Meloa4c43be2009-06-03 23:02:33 -0300871 rb_erase(&n->rb_node, tree);
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200872 output__insert_entry(n);
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300873 }
874}
875
Ingo Molnar729ff5e22009-06-11 14:16:15 +0200876static size_t output__fprintf(FILE *fp, __u64 total_samples)
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300877{
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200878 struct hist_entry *pos;
Ingo Molnar2d655372009-05-27 21:36:22 +0200879 struct sort_entry *se;
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300880 struct rb_node *nd;
881 size_t ret = 0;
882
Peter Zijlstra71dd8942009-06-04 15:16:56 +0200883 fprintf(fp, "\n");
Peter Zijlstraca8cdee2009-05-28 11:08:33 +0200884 fprintf(fp, "#\n");
Ingo Molnar2debbc82009-06-05 14:29:10 +0200885 fprintf(fp, "# (%Ld samples)\n", (__u64)total_samples);
Ingo Molnar05ca0612009-06-04 14:21:16 +0200886 fprintf(fp, "#\n");
Peter Zijlstraca8cdee2009-05-28 11:08:33 +0200887
888 fprintf(fp, "# Overhead");
889 list_for_each_entry(se, &hist_entry__sort_list, list)
Peter Zijlstra71dd8942009-06-04 15:16:56 +0200890 fprintf(fp, " %s", se->header);
Peter Zijlstraca8cdee2009-05-28 11:08:33 +0200891 fprintf(fp, "\n");
892
893 fprintf(fp, "# ........");
Ingo Molnar2d655372009-05-27 21:36:22 +0200894 list_for_each_entry(se, &hist_entry__sort_list, list) {
Peter Zijlstraca8cdee2009-05-28 11:08:33 +0200895 int i;
896
Ingo Molnar4593bba2009-06-02 15:34:25 +0200897 fprintf(fp, " ");
Peter Zijlstra71dd8942009-06-04 15:16:56 +0200898 for (i = 0; i < strlen(se->header); i++)
Peter Zijlstraca8cdee2009-05-28 11:08:33 +0200899 fprintf(fp, ".");
Ingo Molnar2d655372009-05-27 21:36:22 +0200900 }
Peter Zijlstraca8cdee2009-05-28 11:08:33 +0200901 fprintf(fp, "\n");
902
903 fprintf(fp, "#\n");
Ingo Molnar2d655372009-05-27 21:36:22 +0200904
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200905 for (nd = rb_first(&output_hists); nd; nd = rb_next(nd)) {
906 pos = rb_entry(nd, struct hist_entry, rb_node);
907 ret += hist_entry__fprintf(fp, pos, total_samples);
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300908 }
909
Ingo Molnarbd741372009-06-04 14:13:04 +0200910 if (!strcmp(sort_order, default_sort_order)) {
911 fprintf(fp, "#\n");
Peter Zijlstra71dd8942009-06-04 15:16:56 +0200912 fprintf(fp, "# (For more details, try: perf report --sort comm,dso,symbol)\n");
Ingo Molnarbd741372009-06-04 14:13:04 +0200913 fprintf(fp, "#\n");
914 }
Peter Zijlstra71dd8942009-06-04 15:16:56 +0200915 fprintf(fp, "\n");
Ingo Molnarbd741372009-06-04 14:13:04 +0200916
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300917 return ret;
918}
919
Peter Zijlstra436224a2009-06-02 21:02:36 +0200920static void register_idle_thread(void)
921{
922 struct thread *thread = threads__findnew(0);
923
924 if (thread == NULL ||
925 thread__set_comm(thread, "[idle]")) {
926 fprintf(stderr, "problem inserting idle task.\n");
927 exit(-1);
928 }
929}
930
Peter Zijlstra62fc4452009-06-04 16:53:49 +0200931static unsigned long total = 0,
932 total_mmap = 0,
933 total_comm = 0,
934 total_fork = 0,
935 total_unknown = 0;
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200936
Ingo Molnard80d3382009-06-03 23:14:49 +0200937static int
Ingo Molnar75051722009-06-03 23:14:49 +0200938process_overflow_event(event_t *event, unsigned long offset, unsigned long head)
939{
940 char level;
941 int show = 0;
942 struct dso *dso = NULL;
943 struct thread *thread = threads__findnew(event->ip.pid);
Ingo Molnar729ff5e22009-06-11 14:16:15 +0200944 __u64 ip = event->ip.ip;
945 __u64 period = 1;
Ingo Molnar75051722009-06-03 23:14:49 +0200946 struct map *map = NULL;
947
Peter Zijlstraea1900e2009-06-10 21:45:22 +0200948 if (event->header.type & PERF_SAMPLE_PERIOD)
949 period = event->ip.period;
950
Peter Zijlstra4502d772009-06-10 15:03:06 +0200951 dprintf("%p [%p]: PERF_EVENT (IP, %d): %d: %p period: %Ld\n",
Ingo Molnar75051722009-06-03 23:14:49 +0200952 (void *)(offset + head),
953 (void *)(long)(event->header.size),
954 event->header.misc,
955 event->ip.pid,
Peter Zijlstra4502d772009-06-10 15:03:06 +0200956 (void *)(long)ip,
Peter Zijlstraea1900e2009-06-10 21:45:22 +0200957 (long long)period);
Ingo Molnar75051722009-06-03 23:14:49 +0200958
959 dprintf(" ... thread: %s:%d\n", thread->comm, thread->pid);
960
961 if (thread == NULL) {
962 fprintf(stderr, "problem processing %d event, skipping it.\n",
963 event->header.type);
964 return -1;
965 }
966
967 if (event->header.misc & PERF_EVENT_MISC_KERNEL) {
968 show = SHOW_KERNEL;
969 level = 'k';
970
971 dso = kernel_dso;
972
973 dprintf(" ...... dso: %s\n", dso->name);
974
975 } else if (event->header.misc & PERF_EVENT_MISC_USER) {
976
977 show = SHOW_USER;
978 level = '.';
979
980 map = thread__find_map(thread, ip);
981 if (map != NULL) {
Peter Zijlstrafc54db52009-06-05 14:04:59 +0200982 ip = map->map_ip(map, ip);
Ingo Molnar75051722009-06-03 23:14:49 +0200983 dso = map->dso;
Ingo Molnar75051722009-06-03 23:14:49 +0200984 } else {
985 /*
986 * If this is outside of all known maps,
987 * and is a negative address, try to look it
988 * up in the kernel dso, as it might be a
989 * vsyscall (which executes in user-mode):
990 */
991 if ((long long)ip < 0)
992 dso = kernel_dso;
993 }
994 dprintf(" ...... dso: %s\n", dso ? dso->name : "<not found>");
995
996 } else {
997 show = SHOW_HV;
998 level = 'H';
999 dprintf(" ...... dso: [hypervisor]\n");
1000 }
1001
1002 if (show & show_mask) {
Peter Zijlstrafc54db52009-06-05 14:04:59 +02001003 struct symbol *sym = NULL;
1004
1005 if (dso)
1006 sym = dso->find_symbol(dso, ip);
Ingo Molnar75051722009-06-03 23:14:49 +02001007
Peter Zijlstraea1900e2009-06-10 21:45:22 +02001008 if (hist_entry__add(thread, map, dso, sym, ip, level, period)) {
Ingo Molnar75051722009-06-03 23:14:49 +02001009 fprintf(stderr,
1010 "problem incrementing symbol count, skipping event\n");
1011 return -1;
1012 }
1013 }
Peter Zijlstraea1900e2009-06-10 21:45:22 +02001014 total += period;
Ingo Molnar75051722009-06-03 23:14:49 +02001015
1016 return 0;
1017}
1018
1019static int
1020process_mmap_event(event_t *event, unsigned long offset, unsigned long head)
1021{
1022 struct thread *thread = threads__findnew(event->mmap.pid);
1023 struct map *map = map__new(&event->mmap);
1024
Peter Zijlstra62fc4452009-06-04 16:53:49 +02001025 dprintf("%p [%p]: PERF_EVENT_MMAP %d: [%p(%p) @ %p]: %s\n",
Ingo Molnar75051722009-06-03 23:14:49 +02001026 (void *)(offset + head),
1027 (void *)(long)(event->header.size),
Peter Zijlstra62fc4452009-06-04 16:53:49 +02001028 event->mmap.pid,
Ingo Molnar75051722009-06-03 23:14:49 +02001029 (void *)(long)event->mmap.start,
1030 (void *)(long)event->mmap.len,
1031 (void *)(long)event->mmap.pgoff,
1032 event->mmap.filename);
1033
1034 if (thread == NULL || map == NULL) {
1035 dprintf("problem processing PERF_EVENT_MMAP, skipping event.\n");
Ingo Molnardf979922009-06-04 13:41:22 +02001036 return 0;
Ingo Molnar75051722009-06-03 23:14:49 +02001037 }
1038
1039 thread__insert_map(thread, map);
1040 total_mmap++;
1041
1042 return 0;
1043}
1044
1045static int
1046process_comm_event(event_t *event, unsigned long offset, unsigned long head)
1047{
1048 struct thread *thread = threads__findnew(event->comm.pid);
1049
1050 dprintf("%p [%p]: PERF_EVENT_COMM: %s:%d\n",
1051 (void *)(offset + head),
1052 (void *)(long)(event->header.size),
1053 event->comm.comm, event->comm.pid);
1054
1055 if (thread == NULL ||
1056 thread__set_comm(thread, event->comm.comm)) {
1057 dprintf("problem processing PERF_EVENT_COMM, skipping event.\n");
1058 return -1;
1059 }
1060 total_comm++;
1061
1062 return 0;
1063}
1064
1065static int
Peter Zijlstra62fc4452009-06-04 16:53:49 +02001066process_fork_event(event_t *event, unsigned long offset, unsigned long head)
1067{
1068 struct thread *thread = threads__findnew(event->fork.pid);
1069 struct thread *parent = threads__findnew(event->fork.ppid);
1070
1071 dprintf("%p [%p]: PERF_EVENT_FORK: %d:%d\n",
1072 (void *)(offset + head),
1073 (void *)(long)(event->header.size),
1074 event->fork.pid, event->fork.ppid);
1075
1076 if (!thread || !parent || thread__fork(thread, parent)) {
1077 dprintf("problem processing PERF_EVENT_FORK, skipping event.\n");
1078 return -1;
1079 }
1080 total_fork++;
1081
1082 return 0;
1083}
1084
1085static int
Ingo Molnarb2fef072009-06-05 18:07:51 +02001086process_period_event(event_t *event, unsigned long offset, unsigned long head)
1087{
1088 dprintf("%p [%p]: PERF_EVENT_PERIOD: time:%Ld, id:%Ld: period:%Ld\n",
1089 (void *)(offset + head),
1090 (void *)(long)(event->header.size),
1091 event->period.time,
1092 event->period.id,
1093 event->period.sample_period);
1094
1095 return 0;
1096}
1097
1098static int
Ingo Molnard80d3382009-06-03 23:14:49 +02001099process_event(event_t *event, unsigned long offset, unsigned long head)
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001100{
Ingo Molnar75051722009-06-03 23:14:49 +02001101 if (event->header.misc & PERF_EVENT_MISC_OVERFLOW)
1102 return process_overflow_event(event, offset, head);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001103
Ingo Molnar75051722009-06-03 23:14:49 +02001104 switch (event->header.type) {
1105 case PERF_EVENT_MMAP:
1106 return process_mmap_event(event, offset, head);
Ingo Molnar97b07b62009-05-26 18:48:58 +02001107
Ingo Molnar75051722009-06-03 23:14:49 +02001108 case PERF_EVENT_COMM:
1109 return process_comm_event(event, offset, head);
Ingo Molnared966aa2009-06-03 10:39:26 +02001110
Peter Zijlstra62fc4452009-06-04 16:53:49 +02001111 case PERF_EVENT_FORK:
1112 return process_fork_event(event, offset, head);
1113
Ingo Molnarb2fef072009-06-05 18:07:51 +02001114 case PERF_EVENT_PERIOD:
1115 return process_period_event(event, offset, head);
Ingo Molnard11444d2009-06-03 23:29:14 +02001116 /*
1117 * We dont process them right now but they are fine:
1118 */
Peter Zijlstra62fc4452009-06-04 16:53:49 +02001119
Ingo Molnard11444d2009-06-03 23:29:14 +02001120 case PERF_EVENT_THROTTLE:
1121 case PERF_EVENT_UNTHROTTLE:
1122 return 0;
1123
Ingo Molnard80d3382009-06-03 23:14:49 +02001124 default:
1125 return -1;
1126 }
1127
1128 return 0;
1129}
1130
1131static int __cmd_report(void)
1132{
Ingo Molnar75051722009-06-03 23:14:49 +02001133 int ret, rc = EXIT_FAILURE;
Ingo Molnard80d3382009-06-03 23:14:49 +02001134 unsigned long offset = 0;
1135 unsigned long head = 0;
1136 struct stat stat;
Ingo Molnard80d3382009-06-03 23:14:49 +02001137 event_t *event;
Ingo Molnard80d3382009-06-03 23:14:49 +02001138 uint32_t size;
Ingo Molnar75051722009-06-03 23:14:49 +02001139 char *buf;
Ingo Molnard80d3382009-06-03 23:14:49 +02001140
1141 register_idle_thread();
1142
1143 input = open(input_name, O_RDONLY);
1144 if (input < 0) {
Ingo Molnara14832f2009-06-07 17:58:23 +02001145 fprintf(stderr, " failed to open file: %s", input_name);
1146 if (!strcmp(input_name, "perf.data"))
1147 fprintf(stderr, " (try 'perf record' first)");
1148 fprintf(stderr, "\n");
Ingo Molnard80d3382009-06-03 23:14:49 +02001149 exit(-1);
1150 }
1151
1152 ret = fstat(input, &stat);
1153 if (ret < 0) {
1154 perror("failed to stat file");
1155 exit(-1);
1156 }
1157
1158 if (!stat.st_size) {
1159 fprintf(stderr, "zero-sized file, nothing to do!\n");
1160 exit(0);
1161 }
1162
1163 if (load_kernel() < 0) {
1164 perror("failed to load kernel symbols");
1165 return EXIT_FAILURE;
1166 }
1167
1168 if (!full_paths) {
1169 if (getcwd(__cwd, sizeof(__cwd)) == NULL) {
1170 perror("failed to get the current directory");
1171 return EXIT_FAILURE;
1172 }
1173 cwdlen = strlen(cwd);
1174 } else {
1175 cwd = NULL;
1176 cwdlen = 0;
1177 }
1178remap:
1179 buf = (char *)mmap(NULL, page_size * mmap_window, PROT_READ,
1180 MAP_SHARED, input, offset);
1181 if (buf == MAP_FAILED) {
1182 perror("failed to mmap file");
1183 exit(-1);
1184 }
1185
1186more:
1187 event = (event_t *)(buf + head);
1188
1189 size = event->header.size;
1190 if (!size)
1191 size = 8;
1192
1193 if (head + event->header.size >= page_size * mmap_window) {
1194 unsigned long shift = page_size * (head / page_size);
1195 int ret;
1196
1197 ret = munmap(buf, page_size * mmap_window);
1198 assert(ret == 0);
1199
1200 offset += shift;
1201 head -= shift;
1202 goto remap;
1203 }
1204
1205 size = event->header.size;
1206
Ingo Molnarb2fef072009-06-05 18:07:51 +02001207 dprintf("%p [%p]: event: %d\n",
1208 (void *)(offset + head),
1209 (void *)(long)event->header.size,
1210 event->header.type);
1211
Ingo Molnard80d3382009-06-03 23:14:49 +02001212 if (!size || process_event(event, offset, head) < 0) {
1213
Ingo Molnar35029732009-06-03 09:38:58 +02001214 dprintf("%p [%p]: skipping unknown header type: %d\n",
1215 (void *)(offset + head),
1216 (void *)(long)(event->header.size),
1217 event->header.type);
Peter Zijlstrab7a16ea2009-05-27 13:35:35 +02001218
Ingo Molnar3e706112009-05-26 18:53:17 +02001219 total_unknown++;
Peter Zijlstra6142f9e2009-05-26 20:51:47 +02001220
1221 /*
1222 * assume we lost track of the stream, check alignment, and
1223 * increment a single u64 in the hope to catch on again 'soon'.
1224 */
1225
1226 if (unlikely(head & 7))
1227 head &= ~7ULL;
1228
1229 size = 8;
Ingo Molnar97b07b62009-05-26 18:48:58 +02001230 }
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001231
Peter Zijlstra6142f9e2009-05-26 20:51:47 +02001232 head += size;
Ingo Molnarf49515b2009-05-26 19:03:36 +02001233
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001234 if (offset + head < stat.st_size)
1235 goto more;
1236
1237 rc = EXIT_SUCCESS;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001238 close(input);
Ingo Molnar97b07b62009-05-26 18:48:58 +02001239
Ingo Molnar35029732009-06-03 09:38:58 +02001240 dprintf(" IP events: %10ld\n", total);
1241 dprintf(" mmap events: %10ld\n", total_mmap);
1242 dprintf(" comm events: %10ld\n", total_comm);
Peter Zijlstra62fc4452009-06-04 16:53:49 +02001243 dprintf(" fork events: %10ld\n", total_fork);
Ingo Molnar35029732009-06-03 09:38:58 +02001244 dprintf(" unknown events: %10ld\n", total_unknown);
Ingo Molnar97b07b62009-05-26 18:48:58 +02001245
Ingo Molnar35029732009-06-03 09:38:58 +02001246 if (dump_trace)
Ingo Molnar97b07b62009-05-26 18:48:58 +02001247 return 0;
Ingo Molnar97b07b62009-05-26 18:48:58 +02001248
Arnaldo Carvalho de Melo9ac99542009-06-04 13:54:00 -03001249 if (verbose >= 3)
1250 threads__fprintf(stdout);
1251
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +02001252 if (verbose >= 2)
Ingo Molnar16f762a2009-05-27 09:10:38 +02001253 dsos__fprintf(stdout);
Ingo Molnar16f762a2009-05-27 09:10:38 +02001254
Peter Zijlstra82292892009-06-03 12:37:36 +02001255 collapse__resort();
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +02001256 output__resort();
1257 output__fprintf(stdout, total);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001258
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001259 return rc;
1260}
1261
Ingo Molnar53cb8bc2009-05-26 09:17:18 +02001262static const char * const report_usage[] = {
1263 "perf report [<options>] <command>",
1264 NULL
1265};
1266
1267static const struct option options[] = {
1268 OPT_STRING('i', "input", &input_name, "file",
1269 "input file name"),
Arnaldo Carvalho de Melo815e7772009-05-26 19:46:14 -03001270 OPT_BOOLEAN('v', "verbose", &verbose,
1271 "be more verbose (show symbol address, etc)"),
Ingo Molnar97b07b62009-05-26 18:48:58 +02001272 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
1273 "dump raw trace in ASCII"),
Peter Zijlstra450aaa22009-05-27 20:20:23 +02001274 OPT_STRING('k', "vmlinux", &vmlinux, "file", "vmlinux pathname"),
Ingo Molnar63299f02009-05-28 10:52:00 +02001275 OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
1276 "sort by key(s): pid, comm, dso, symbol. Default: pid,symbol"),
Arnaldo Carvalho de Melob78c07d2009-05-29 13:48:59 -03001277 OPT_BOOLEAN('P', "full-paths", &full_paths,
1278 "Don't shorten the pathnames taking into account the cwd"),
Ingo Molnar53cb8bc2009-05-26 09:17:18 +02001279 OPT_END()
1280};
1281
Ingo Molnar5352f352009-06-03 10:07:39 +02001282static void setup_sorting(void)
1283{
1284 char *tmp, *tok, *str = strdup(sort_order);
1285
1286 for (tok = strtok_r(str, ", ", &tmp);
1287 tok; tok = strtok_r(NULL, ", ", &tmp)) {
1288 if (sort_dimension__add(tok) < 0) {
1289 error("Unknown --sort key: `%s'", tok);
1290 usage_with_options(report_usage, options);
1291 }
1292 }
1293
1294 free(str);
1295}
1296
Ingo Molnar53cb8bc2009-05-26 09:17:18 +02001297int cmd_report(int argc, const char **argv, const char *prefix)
1298{
Arnaldo Carvalho de Meloa2928c42009-05-28 14:55:04 -03001299 symbol__init();
Ingo Molnar53cb8bc2009-05-26 09:17:18 +02001300
1301 page_size = getpagesize();
1302
Ingo Molnaredc52de2009-06-04 16:24:37 +02001303 argc = parse_options(argc, argv, options, report_usage, 0);
Ingo Molnar53cb8bc2009-05-26 09:17:18 +02001304
Peter Zijlstra1aa16732009-05-27 20:20:25 +02001305 setup_sorting();
1306
Ingo Molnaredc52de2009-06-04 16:24:37 +02001307 /*
1308 * Any (unrecognized) arguments left?
1309 */
1310 if (argc)
1311 usage_with_options(report_usage, options);
1312
Ingo Molnara930d2c2009-05-27 09:50:13 +02001313 setup_pager();
1314
Ingo Molnar53cb8bc2009-05-26 09:17:18 +02001315 return __cmd_report();
1316}