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Commit | Line | Data |
---|---|---|
07800601 | 1 | /* |
bf9e1876 IM |
2 | * builtin-top.c |
3 | * | |
4 | * Builtin top command: Display a continuously updated profile of | |
5 | * any workload, CPU or specific PID. | |
6 | * | |
7 | * Copyright (C) 2008, Red Hat Inc, Ingo Molnar <mingo@redhat.com> | |
ab81f3fd | 8 | * 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> |
bf9e1876 IM |
9 | * |
10 | * Improvements and fixes by: | |
11 | * | |
12 | * Arjan van de Ven <arjan@linux.intel.com> | |
13 | * Yanmin Zhang <yanmin.zhang@intel.com> | |
14 | * Wu Fengguang <fengguang.wu@intel.com> | |
15 | * Mike Galbraith <efault@gmx.de> | |
16 | * Paul Mackerras <paulus@samba.org> | |
17 | * | |
18 | * Released under the GPL v2. (and only v2, not any later version) | |
07800601 | 19 | */ |
bf9e1876 | 20 | #include "builtin.h" |
07800601 | 21 | |
1a482f38 | 22 | #include "perf.h" |
bf9e1876 | 23 | |
36532461 | 24 | #include "util/annotate.h" |
c0443df1 | 25 | #include "util/cache.h" |
8fc0321f | 26 | #include "util/color.h" |
361c99a6 | 27 | #include "util/evlist.h" |
69aad6f1 | 28 | #include "util/evsel.h" |
b3165f41 ACM |
29 | #include "util/session.h" |
30 | #include "util/symbol.h" | |
439d473b | 31 | #include "util/thread.h" |
fd78260b | 32 | #include "util/thread_map.h" |
8c3e10eb | 33 | #include "util/top.h" |
148be2c1 | 34 | #include "util/util.h" |
43cbcd8a | 35 | #include <linux/rbtree.h> |
b456bae0 IM |
36 | #include "util/parse-options.h" |
37 | #include "util/parse-events.h" | |
a12b51c4 | 38 | #include "util/cpumap.h" |
69aad6f1 | 39 | #include "util/xyarray.h" |
ab81f3fd | 40 | #include "util/sort.h" |
07800601 | 41 | |
8f28827a FW |
42 | #include "util/debug.h" |
43 | ||
07800601 IM |
44 | #include <assert.h> |
45 | #include <fcntl.h> | |
0e9b20b8 | 46 | |
07800601 | 47 | #include <stdio.h> |
923c42c1 MG |
48 | #include <termios.h> |
49 | #include <unistd.h> | |
9486aa38 | 50 | #include <inttypes.h> |
0e9b20b8 | 51 | |
07800601 | 52 | #include <errno.h> |
07800601 IM |
53 | #include <time.h> |
54 | #include <sched.h> | |
07800601 IM |
55 | |
56 | #include <sys/syscall.h> | |
57 | #include <sys/ioctl.h> | |
58 | #include <sys/poll.h> | |
59 | #include <sys/prctl.h> | |
60 | #include <sys/wait.h> | |
61 | #include <sys/uio.h> | |
62 | #include <sys/mman.h> | |
63 | ||
64 | #include <linux/unistd.h> | |
65 | #include <linux/types.h> | |
66 | ||
8c3e10eb ACM |
67 | static struct perf_top top = { |
68 | .count_filter = 5, | |
69 | .delay_secs = 2, | |
8c3e10eb ACM |
70 | .target_pid = -1, |
71 | .target_tid = -1, | |
8c3e10eb ACM |
72 | .freq = 1000, /* 1 KHz */ |
73 | }; | |
361c99a6 | 74 | |
c0555642 | 75 | static bool system_wide = false; |
07800601 | 76 | |
c0443df1 ACM |
77 | static bool use_tui, use_stdio; |
78 | ||
19d4ac3c ACM |
79 | static bool sort_has_symbols; |
80 | ||
81 | static bool dont_use_callchains; | |
82 | static char callchain_default_opt[] = "fractal,0.5,callee"; | |
83 | ||
84 | ||
7e4ff9e3 | 85 | static int default_interval = 0; |
07800601 | 86 | |
5f6f5580 | 87 | static bool kptr_restrict_warned; |
e4a338d0 | 88 | static bool vmlinux_warned; |
c0555642 | 89 | static bool inherit = false; |
1967936d | 90 | static int realtime_prio = 0; |
c0555642 | 91 | static bool group = false; |
7b27509f | 92 | static bool sample_id_all_avail = true; |
70db7533 | 93 | static unsigned int mmap_pages = 128; |
07800601 | 94 | |
c0555642 | 95 | static bool dump_symtab = false; |
07800601 | 96 | |
13cc5079 | 97 | static struct winsize winsize; |
8ffcda17 | 98 | |
edb7c60e | 99 | static const char *sym_filter = NULL; |
42e59d7d | 100 | static int sym_pcnt_filter = 5; |
07800601 | 101 | |
923c42c1 MG |
102 | /* |
103 | * Source functions | |
104 | */ | |
105 | ||
895f0edc | 106 | void get_term_dimensions(struct winsize *ws) |
3b6ed988 | 107 | { |
13cc5079 ACM |
108 | char *s = getenv("LINES"); |
109 | ||
110 | if (s != NULL) { | |
111 | ws->ws_row = atoi(s); | |
112 | s = getenv("COLUMNS"); | |
113 | if (s != NULL) { | |
114 | ws->ws_col = atoi(s); | |
115 | if (ws->ws_row && ws->ws_col) | |
116 | return; | |
117 | } | |
3b6ed988 | 118 | } |
13cc5079 ACM |
119 | #ifdef TIOCGWINSZ |
120 | if (ioctl(1, TIOCGWINSZ, ws) == 0 && | |
121 | ws->ws_row && ws->ws_col) | |
122 | return; | |
3b6ed988 | 123 | #endif |
13cc5079 ACM |
124 | ws->ws_row = 25; |
125 | ws->ws_col = 80; | |
3b6ed988 ACM |
126 | } |
127 | ||
13cc5079 | 128 | static void update_print_entries(struct winsize *ws) |
3b6ed988 | 129 | { |
8c3e10eb | 130 | top.print_entries = ws->ws_row; |
13cc5079 | 131 | |
8c3e10eb ACM |
132 | if (top.print_entries > 9) |
133 | top.print_entries -= 9; | |
3b6ed988 ACM |
134 | } |
135 | ||
136 | static void sig_winch_handler(int sig __used) | |
137 | { | |
13cc5079 ACM |
138 | get_term_dimensions(&winsize); |
139 | update_print_entries(&winsize); | |
3b6ed988 ACM |
140 | } |
141 | ||
ab81f3fd | 142 | static int parse_source(struct hist_entry *he) |
923c42c1 MG |
143 | { |
144 | struct symbol *sym; | |
ce6f4fab | 145 | struct annotation *notes; |
439d473b | 146 | struct map *map; |
36532461 | 147 | int err = -1; |
923c42c1 | 148 | |
ab81f3fd | 149 | if (!he || !he->ms.sym) |
b0a9ab62 ACM |
150 | return -1; |
151 | ||
ab81f3fd ACM |
152 | sym = he->ms.sym; |
153 | map = he->ms.map; | |
b0a9ab62 ACM |
154 | |
155 | /* | |
156 | * We can't annotate with just /proc/kallsyms | |
157 | */ | |
878b439d | 158 | if (map->dso->symtab_type == SYMTAB__KALLSYMS) { |
ce6f4fab ACM |
159 | pr_err("Can't annotate %s: No vmlinux file was found in the " |
160 | "path\n", sym->name); | |
161 | sleep(1); | |
b0a9ab62 | 162 | return -1; |
b269876c ACM |
163 | } |
164 | ||
ce6f4fab ACM |
165 | notes = symbol__annotation(sym); |
166 | if (notes->src != NULL) { | |
167 | pthread_mutex_lock(¬es->lock); | |
923c42c1 MG |
168 | goto out_assign; |
169 | } | |
923c42c1 | 170 | |
ce6f4fab | 171 | pthread_mutex_lock(¬es->lock); |
923c42c1 | 172 | |
36532461 | 173 | if (symbol__alloc_hist(sym, top.evlist->nr_entries) < 0) { |
c97cf422 | 174 | pthread_mutex_unlock(¬es->lock); |
36532461 ACM |
175 | pr_err("Not enough memory for annotating '%s' symbol!\n", |
176 | sym->name); | |
ce6f4fab | 177 | sleep(1); |
c97cf422 | 178 | return err; |
923c42c1 | 179 | } |
36532461 | 180 | |
ab81f3fd | 181 | err = symbol__annotate(sym, map, 0); |
36532461 | 182 | if (err == 0) { |
923c42c1 | 183 | out_assign: |
ab81f3fd | 184 | top.sym_filter_entry = he; |
36532461 | 185 | } |
c97cf422 | 186 | |
ce6f4fab | 187 | pthread_mutex_unlock(¬es->lock); |
36532461 | 188 | return err; |
923c42c1 MG |
189 | } |
190 | ||
ab81f3fd | 191 | static void __zero_source_counters(struct hist_entry *he) |
923c42c1 | 192 | { |
ab81f3fd | 193 | struct symbol *sym = he->ms.sym; |
36532461 | 194 | symbol__annotate_zero_histograms(sym); |
923c42c1 MG |
195 | } |
196 | ||
ab81f3fd | 197 | static void record_precise_ip(struct hist_entry *he, int counter, u64 ip) |
923c42c1 | 198 | { |
ce6f4fab ACM |
199 | struct annotation *notes; |
200 | struct symbol *sym; | |
201 | ||
ab81f3fd | 202 | if (he == NULL || he->ms.sym == NULL || |
f9e3d4b1 ACM |
203 | ((top.sym_filter_entry == NULL || |
204 | top.sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1)) | |
923c42c1 MG |
205 | return; |
206 | ||
ab81f3fd | 207 | sym = he->ms.sym; |
ce6f4fab ACM |
208 | notes = symbol__annotation(sym); |
209 | ||
210 | if (pthread_mutex_trylock(¬es->lock)) | |
923c42c1 MG |
211 | return; |
212 | ||
ab81f3fd ACM |
213 | if (notes->src == NULL && |
214 | symbol__alloc_hist(sym, top.evlist->nr_entries) < 0) { | |
215 | pthread_mutex_unlock(¬es->lock); | |
216 | pr_err("Not enough memory for annotating '%s' symbol!\n", | |
217 | sym->name); | |
218 | sleep(1); | |
219 | return; | |
220 | } | |
221 | ||
222 | ip = he->ms.map->map_ip(he->ms.map, ip); | |
223 | symbol__inc_addr_samples(sym, he->ms.map, counter, ip); | |
c7ad21af | 224 | |
ce6f4fab | 225 | pthread_mutex_unlock(¬es->lock); |
923c42c1 MG |
226 | } |
227 | ||
ab81f3fd | 228 | static void show_details(struct hist_entry *he) |
923c42c1 | 229 | { |
ce6f4fab | 230 | struct annotation *notes; |
923c42c1 | 231 | struct symbol *symbol; |
36532461 | 232 | int more; |
923c42c1 | 233 | |
ab81f3fd | 234 | if (!he) |
923c42c1 MG |
235 | return; |
236 | ||
ab81f3fd | 237 | symbol = he->ms.sym; |
ce6f4fab ACM |
238 | notes = symbol__annotation(symbol); |
239 | ||
240 | pthread_mutex_lock(¬es->lock); | |
241 | ||
242 | if (notes->src == NULL) | |
243 | goto out_unlock; | |
923c42c1 | 244 | |
8c3e10eb | 245 | printf("Showing %s for %s\n", event_name(top.sym_evsel), symbol->name); |
923c42c1 MG |
246 | printf(" Events Pcnt (>=%d%%)\n", sym_pcnt_filter); |
247 | ||
ab81f3fd | 248 | more = symbol__annotate_printf(symbol, he->ms.map, top.sym_evsel->idx, |
d5e3d747 | 249 | 0, sym_pcnt_filter, top.print_entries, 4); |
36532461 ACM |
250 | if (top.zero) |
251 | symbol__annotate_zero_histogram(symbol, top.sym_evsel->idx); | |
252 | else | |
ce6f4fab | 253 | symbol__annotate_decay_histogram(symbol, top.sym_evsel->idx); |
36532461 | 254 | if (more != 0) |
923c42c1 | 255 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
ce6f4fab ACM |
256 | out_unlock: |
257 | pthread_mutex_unlock(¬es->lock); | |
923c42c1 | 258 | } |
07800601 | 259 | |
07800601 IM |
260 | static const char CONSOLE_CLEAR[] = "\e[H\e[2J"; |
261 | ||
ab81f3fd ACM |
262 | static struct hist_entry * |
263 | perf_session__add_hist_entry(struct perf_session *session, | |
264 | struct addr_location *al, | |
265 | struct perf_sample *sample, | |
266 | struct perf_evsel *evsel) | |
de04687f | 267 | { |
ab81f3fd ACM |
268 | struct hist_entry *he; |
269 | ||
270 | he = __hists__add_entry(&evsel->hists, al, NULL, sample->period); | |
271 | if (he == NULL) | |
272 | return NULL; | |
273 | ||
274 | session->hists.stats.total_period += sample->period; | |
275 | hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); | |
276 | return he; | |
de04687f | 277 | } |
07800601 | 278 | |
dcc101d1 | 279 | static void print_sym_table(void) |
07800601 | 280 | { |
8c3e10eb ACM |
281 | char bf[160]; |
282 | int printed = 0; | |
13cc5079 | 283 | const int win_width = winsize.ws_col - 1; |
d94b9430 | 284 | |
0f5486b5 | 285 | puts(CONSOLE_CLEAR); |
07800601 | 286 | |
8c3e10eb ACM |
287 | perf_top__header_snprintf(&top, bf, sizeof(bf)); |
288 | printf("%s\n", bf); | |
07800601 | 289 | |
8c3e10eb | 290 | perf_top__reset_sample_counters(&top); |
07800601 | 291 | |
1a105f74 | 292 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 293 | |
7b27509f ACM |
294 | if (top.sym_evsel->hists.stats.nr_lost_warned != |
295 | top.sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) { | |
296 | top.sym_evsel->hists.stats.nr_lost_warned = | |
297 | top.sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]; | |
298 | color_fprintf(stdout, PERF_COLOR_RED, | |
299 | "WARNING: LOST %d chunks, Check IO/CPU overload", | |
300 | top.sym_evsel->hists.stats.nr_lost_warned); | |
ab81f3fd | 301 | ++printed; |
93fc64f1 ACM |
302 | } |
303 | ||
c97cf422 ACM |
304 | if (top.sym_filter_entry) { |
305 | show_details(top.sym_filter_entry); | |
923c42c1 MG |
306 | return; |
307 | } | |
308 | ||
ab81f3fd ACM |
309 | hists__collapse_resort_threaded(&top.sym_evsel->hists); |
310 | hists__output_resort_threaded(&top.sym_evsel->hists); | |
b079d4e9 ACM |
311 | hists__decay_entries_threaded(&top.sym_evsel->hists, |
312 | top.hide_user_symbols, | |
313 | top.hide_kernel_symbols); | |
ab81f3fd | 314 | hists__output_recalc_col_len(&top.sym_evsel->hists, winsize.ws_row - 3); |
7cc017ed | 315 | putchar('\n'); |
ab81f3fd ACM |
316 | hists__fprintf(&top.sym_evsel->hists, NULL, false, false, |
317 | winsize.ws_row - 4 - printed, win_width, stdout); | |
07800601 IM |
318 | } |
319 | ||
923c42c1 MG |
320 | static void prompt_integer(int *target, const char *msg) |
321 | { | |
322 | char *buf = malloc(0), *p; | |
323 | size_t dummy = 0; | |
324 | int tmp; | |
325 | ||
326 | fprintf(stdout, "\n%s: ", msg); | |
327 | if (getline(&buf, &dummy, stdin) < 0) | |
328 | return; | |
329 | ||
330 | p = strchr(buf, '\n'); | |
331 | if (p) | |
332 | *p = 0; | |
333 | ||
334 | p = buf; | |
335 | while(*p) { | |
336 | if (!isdigit(*p)) | |
337 | goto out_free; | |
338 | p++; | |
339 | } | |
340 | tmp = strtoul(buf, NULL, 10); | |
341 | *target = tmp; | |
342 | out_free: | |
343 | free(buf); | |
344 | } | |
345 | ||
346 | static void prompt_percent(int *target, const char *msg) | |
347 | { | |
348 | int tmp = 0; | |
349 | ||
350 | prompt_integer(&tmp, msg); | |
351 | if (tmp >= 0 && tmp <= 100) | |
352 | *target = tmp; | |
353 | } | |
354 | ||
ab81f3fd | 355 | static void prompt_symbol(struct hist_entry **target, const char *msg) |
923c42c1 MG |
356 | { |
357 | char *buf = malloc(0), *p; | |
ab81f3fd ACM |
358 | struct hist_entry *syme = *target, *n, *found = NULL; |
359 | struct rb_node *next; | |
923c42c1 MG |
360 | size_t dummy = 0; |
361 | ||
362 | /* zero counters of active symbol */ | |
363 | if (syme) { | |
923c42c1 MG |
364 | __zero_source_counters(syme); |
365 | *target = NULL; | |
923c42c1 MG |
366 | } |
367 | ||
368 | fprintf(stdout, "\n%s: ", msg); | |
369 | if (getline(&buf, &dummy, stdin) < 0) | |
370 | goto out_free; | |
371 | ||
372 | p = strchr(buf, '\n'); | |
373 | if (p) | |
374 | *p = 0; | |
375 | ||
ab81f3fd ACM |
376 | next = rb_first(&top.sym_evsel->hists.entries); |
377 | while (next) { | |
378 | n = rb_entry(next, struct hist_entry, rb_node); | |
379 | if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { | |
380 | found = n; | |
923c42c1 MG |
381 | break; |
382 | } | |
ab81f3fd | 383 | next = rb_next(&n->rb_node); |
923c42c1 MG |
384 | } |
385 | ||
386 | if (!found) { | |
66aeb6d5 | 387 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
923c42c1 MG |
388 | sleep(1); |
389 | return; | |
390 | } else | |
391 | parse_source(found); | |
392 | ||
393 | out_free: | |
394 | free(buf); | |
395 | } | |
396 | ||
091bd2e9 | 397 | static void print_mapped_keys(void) |
923c42c1 | 398 | { |
091bd2e9 MG |
399 | char *name = NULL; |
400 | ||
c97cf422 | 401 | if (top.sym_filter_entry) { |
ab81f3fd | 402 | struct symbol *sym = top.sym_filter_entry->ms.sym; |
091bd2e9 MG |
403 | name = sym->name; |
404 | } | |
405 | ||
406 | fprintf(stdout, "\nMapped keys:\n"); | |
8c3e10eb ACM |
407 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top.delay_secs); |
408 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top.print_entries); | |
091bd2e9 | 409 | |
8c3e10eb ACM |
410 | if (top.evlist->nr_entries > 1) |
411 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", event_name(top.sym_evsel)); | |
091bd2e9 | 412 | |
8c3e10eb | 413 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top.count_filter); |
091bd2e9 | 414 | |
6cff0e8d KS |
415 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", sym_pcnt_filter); |
416 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); | |
417 | fprintf(stdout, "\t[S] stop annotation.\n"); | |
091bd2e9 | 418 | |
8ffcda17 | 419 | fprintf(stdout, |
1a72cfa6 | 420 | "\t[K] hide kernel_symbols symbols. \t(%s)\n", |
8c3e10eb | 421 | top.hide_kernel_symbols ? "yes" : "no"); |
8ffcda17 ACM |
422 | fprintf(stdout, |
423 | "\t[U] hide user symbols. \t(%s)\n", | |
8c3e10eb ACM |
424 | top.hide_user_symbols ? "yes" : "no"); |
425 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top.zero ? 1 : 0); | |
091bd2e9 MG |
426 | fprintf(stdout, "\t[qQ] quit.\n"); |
427 | } | |
428 | ||
429 | static int key_mapped(int c) | |
430 | { | |
431 | switch (c) { | |
432 | case 'd': | |
433 | case 'e': | |
434 | case 'f': | |
435 | case 'z': | |
436 | case 'q': | |
437 | case 'Q': | |
8ffcda17 ACM |
438 | case 'K': |
439 | case 'U': | |
6cff0e8d KS |
440 | case 'F': |
441 | case 's': | |
442 | case 'S': | |
091bd2e9 MG |
443 | return 1; |
444 | case 'E': | |
b2b7e9eb | 445 | return top.evlist->nr_entries > 1 ? 1 : 0; |
83a0944f IM |
446 | default: |
447 | break; | |
091bd2e9 MG |
448 | } |
449 | ||
450 | return 0; | |
923c42c1 MG |
451 | } |
452 | ||
dcc101d1 | 453 | static void handle_keypress(int c) |
923c42c1 | 454 | { |
091bd2e9 MG |
455 | if (!key_mapped(c)) { |
456 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; | |
457 | struct termios tc, save; | |
458 | ||
459 | print_mapped_keys(); | |
460 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); | |
461 | fflush(stdout); | |
462 | ||
463 | tcgetattr(0, &save); | |
464 | tc = save; | |
465 | tc.c_lflag &= ~(ICANON | ECHO); | |
466 | tc.c_cc[VMIN] = 0; | |
467 | tc.c_cc[VTIME] = 0; | |
468 | tcsetattr(0, TCSANOW, &tc); | |
469 | ||
470 | poll(&stdin_poll, 1, -1); | |
471 | c = getc(stdin); | |
472 | ||
473 | tcsetattr(0, TCSAFLUSH, &save); | |
474 | if (!key_mapped(c)) | |
475 | return; | |
476 | } | |
477 | ||
923c42c1 MG |
478 | switch (c) { |
479 | case 'd': | |
8c3e10eb ACM |
480 | prompt_integer(&top.delay_secs, "Enter display delay"); |
481 | if (top.delay_secs < 1) | |
482 | top.delay_secs = 1; | |
923c42c1 MG |
483 | break; |
484 | case 'e': | |
8c3e10eb ACM |
485 | prompt_integer(&top.print_entries, "Enter display entries (lines)"); |
486 | if (top.print_entries == 0) { | |
13cc5079 | 487 | sig_winch_handler(SIGWINCH); |
3b6ed988 ACM |
488 | signal(SIGWINCH, sig_winch_handler); |
489 | } else | |
490 | signal(SIGWINCH, SIG_DFL); | |
923c42c1 MG |
491 | break; |
492 | case 'E': | |
8c3e10eb | 493 | if (top.evlist->nr_entries > 1) { |
ce2d17ca AN |
494 | /* Select 0 as the default event: */ |
495 | int counter = 0; | |
496 | ||
923c42c1 | 497 | fprintf(stderr, "\nAvailable events:"); |
69aad6f1 | 498 | |
8c3e10eb ACM |
499 | list_for_each_entry(top.sym_evsel, &top.evlist->entries, node) |
500 | fprintf(stderr, "\n\t%d %s", top.sym_evsel->idx, event_name(top.sym_evsel)); | |
923c42c1 | 501 | |
ec52d976 | 502 | prompt_integer(&counter, "Enter details event counter"); |
923c42c1 | 503 | |
ec52d976 | 504 | if (counter >= top.evlist->nr_entries) { |
8c3e10eb | 505 | top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); |
8c3e10eb | 506 | fprintf(stderr, "Sorry, no such event, using %s.\n", event_name(top.sym_evsel)); |
923c42c1 | 507 | sleep(1); |
69aad6f1 | 508 | break; |
923c42c1 | 509 | } |
8c3e10eb | 510 | list_for_each_entry(top.sym_evsel, &top.evlist->entries, node) |
ec52d976 | 511 | if (top.sym_evsel->idx == counter) |
69aad6f1 | 512 | break; |
ec52d976 ACM |
513 | } else |
514 | top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); | |
923c42c1 MG |
515 | break; |
516 | case 'f': | |
8c3e10eb | 517 | prompt_integer(&top.count_filter, "Enter display event count filter"); |
923c42c1 MG |
518 | break; |
519 | case 'F': | |
520 | prompt_percent(&sym_pcnt_filter, "Enter details display event filter (percent)"); | |
521 | break; | |
8ffcda17 | 522 | case 'K': |
8c3e10eb | 523 | top.hide_kernel_symbols = !top.hide_kernel_symbols; |
8ffcda17 | 524 | break; |
923c42c1 MG |
525 | case 'q': |
526 | case 'Q': | |
527 | printf("exiting.\n"); | |
c338aee8 | 528 | if (dump_symtab) |
dcc101d1 | 529 | perf_session__fprintf_dsos(top.session, stderr); |
923c42c1 MG |
530 | exit(0); |
531 | case 's': | |
c97cf422 | 532 | prompt_symbol(&top.sym_filter_entry, "Enter details symbol"); |
923c42c1 MG |
533 | break; |
534 | case 'S': | |
c97cf422 | 535 | if (!top.sym_filter_entry) |
923c42c1 MG |
536 | break; |
537 | else { | |
ab81f3fd | 538 | struct hist_entry *syme = top.sym_filter_entry; |
923c42c1 | 539 | |
c97cf422 | 540 | top.sym_filter_entry = NULL; |
923c42c1 | 541 | __zero_source_counters(syme); |
923c42c1 MG |
542 | } |
543 | break; | |
8ffcda17 | 544 | case 'U': |
8c3e10eb | 545 | top.hide_user_symbols = !top.hide_user_symbols; |
8ffcda17 | 546 | break; |
923c42c1 | 547 | case 'z': |
8c3e10eb | 548 | top.zero = !top.zero; |
923c42c1 | 549 | break; |
83a0944f IM |
550 | default: |
551 | break; | |
923c42c1 MG |
552 | } |
553 | } | |
554 | ||
ab81f3fd ACM |
555 | static void perf_top__sort_new_samples(void *arg) |
556 | { | |
557 | struct perf_top *t = arg; | |
558 | perf_top__reset_sample_counters(t); | |
559 | ||
560 | if (t->evlist->selected != NULL) | |
561 | t->sym_evsel = t->evlist->selected; | |
562 | ||
563 | hists__collapse_resort_threaded(&t->sym_evsel->hists); | |
564 | hists__output_resort_threaded(&t->sym_evsel->hists); | |
b079d4e9 ACM |
565 | hists__decay_entries_threaded(&t->sym_evsel->hists, |
566 | top.hide_user_symbols, | |
567 | top.hide_kernel_symbols); | |
ab81f3fd ACM |
568 | } |
569 | ||
c0443df1 ACM |
570 | static void *display_thread_tui(void *arg __used) |
571 | { | |
ab81f3fd ACM |
572 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
573 | ||
574 | perf_top__sort_new_samples(&top); | |
575 | perf_evlist__tui_browse_hists(top.evlist, help, | |
576 | perf_top__sort_new_samples, | |
577 | &top, top.delay_secs); | |
578 | ||
c0443df1 ACM |
579 | exit_browser(0); |
580 | exit(0); | |
581 | return NULL; | |
582 | } | |
583 | ||
f37a291c | 584 | static void *display_thread(void *arg __used) |
07800601 | 585 | { |
0f5486b5 | 586 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
923c42c1 MG |
587 | struct termios tc, save; |
588 | int delay_msecs, c; | |
589 | ||
590 | tcgetattr(0, &save); | |
591 | tc = save; | |
592 | tc.c_lflag &= ~(ICANON | ECHO); | |
593 | tc.c_cc[VMIN] = 0; | |
594 | tc.c_cc[VTIME] = 0; | |
091bd2e9 | 595 | |
3af6e338 | 596 | pthread__unblock_sigwinch(); |
923c42c1 | 597 | repeat: |
8c3e10eb | 598 | delay_msecs = top.delay_secs * 1000; |
923c42c1 MG |
599 | tcsetattr(0, TCSANOW, &tc); |
600 | /* trash return*/ | |
601 | getc(stdin); | |
07800601 | 602 | |
3af6e338 | 603 | while (1) { |
dcc101d1 | 604 | print_sym_table(); |
3af6e338 ACM |
605 | /* |
606 | * Either timeout expired or we got an EINTR due to SIGWINCH, | |
607 | * refresh screen in both cases. | |
608 | */ | |
609 | switch (poll(&stdin_poll, 1, delay_msecs)) { | |
610 | case 0: | |
611 | continue; | |
612 | case -1: | |
613 | if (errno == EINTR) | |
614 | continue; | |
615 | /* Fall trhu */ | |
616 | default: | |
617 | goto process_hotkey; | |
618 | } | |
619 | } | |
620 | process_hotkey: | |
923c42c1 MG |
621 | c = getc(stdin); |
622 | tcsetattr(0, TCSAFLUSH, &save); | |
623 | ||
dcc101d1 | 624 | handle_keypress(c); |
923c42c1 | 625 | goto repeat; |
07800601 IM |
626 | |
627 | return NULL; | |
628 | } | |
629 | ||
2ab52083 | 630 | /* Tag samples to be skipped. */ |
f37a291c | 631 | static const char *skip_symbols[] = { |
2ab52083 | 632 | "default_idle", |
b0e8572f | 633 | "native_safe_halt", |
2ab52083 AB |
634 | "cpu_idle", |
635 | "enter_idle", | |
636 | "exit_idle", | |
637 | "mwait_idle", | |
59b90056 | 638 | "mwait_idle_with_hints", |
8357275b | 639 | "poll_idle", |
3a3393ef AB |
640 | "ppc64_runlatch_off", |
641 | "pseries_dedicated_idle_sleep", | |
2ab52083 AB |
642 | NULL |
643 | }; | |
644 | ||
ab81f3fd | 645 | static int symbol_filter(struct map *map __used, struct symbol *sym) |
07800601 | 646 | { |
de04687f | 647 | const char *name = sym->name; |
2ab52083 | 648 | int i; |
de04687f | 649 | |
3a3393ef AB |
650 | /* |
651 | * ppc64 uses function descriptors and appends a '.' to the | |
652 | * start of every instruction address. Remove it. | |
653 | */ | |
654 | if (name[0] == '.') | |
655 | name++; | |
656 | ||
de04687f ACM |
657 | if (!strcmp(name, "_text") || |
658 | !strcmp(name, "_etext") || | |
659 | !strcmp(name, "_sinittext") || | |
660 | !strncmp("init_module", name, 11) || | |
661 | !strncmp("cleanup_module", name, 14) || | |
662 | strstr(name, "_text_start") || | |
663 | strstr(name, "_text_end")) | |
07800601 | 664 | return 1; |
07800601 | 665 | |
2ab52083 AB |
666 | for (i = 0; skip_symbols[i]; i++) { |
667 | if (!strcmp(skip_symbols[i], name)) { | |
171b3be9 | 668 | sym->ignore = true; |
2ab52083 AB |
669 | break; |
670 | } | |
671 | } | |
07800601 | 672 | |
07800601 IM |
673 | return 0; |
674 | } | |
675 | ||
8115d60c | 676 | static void perf_event__process_sample(const union perf_event *event, |
7b27509f | 677 | struct perf_evsel *evsel, |
8115d60c ACM |
678 | struct perf_sample *sample, |
679 | struct perf_session *session) | |
07800601 | 680 | { |
19d4ac3c | 681 | struct symbol *parent = NULL; |
8115d60c | 682 | u64 ip = event->ip.ip; |
1ed091c4 | 683 | struct addr_location al; |
23346f21 | 684 | struct machine *machine; |
19d4ac3c | 685 | int err; |
8115d60c | 686 | u8 origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
5b2bb75a | 687 | |
8c3e10eb | 688 | ++top.samples; |
24bfef0f | 689 | |
8ffcda17 | 690 | switch (origin) { |
1ed091c4 | 691 | case PERF_RECORD_MISC_USER: |
8c3e10eb ACM |
692 | ++top.us_samples; |
693 | if (top.hide_user_symbols) | |
8ffcda17 | 694 | return; |
23346f21 | 695 | machine = perf_session__find_host_machine(session); |
1ed091c4 | 696 | break; |
5b2bb75a | 697 | case PERF_RECORD_MISC_KERNEL: |
8c3e10eb ACM |
698 | ++top.kernel_samples; |
699 | if (top.hide_kernel_symbols) | |
8ffcda17 | 700 | return; |
23346f21 | 701 | machine = perf_session__find_host_machine(session); |
a1645ce1 ZY |
702 | break; |
703 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
8c3e10eb | 704 | ++top.guest_kernel_samples; |
8115d60c | 705 | machine = perf_session__find_machine(session, event->ip.pid); |
5b2bb75a | 706 | break; |
a1645ce1 | 707 | case PERF_RECORD_MISC_GUEST_USER: |
8c3e10eb | 708 | ++top.guest_us_samples; |
a1645ce1 ZY |
709 | /* |
710 | * TODO: we don't process guest user from host side | |
711 | * except simple counting. | |
712 | */ | |
713 | return; | |
5b2bb75a ACM |
714 | default: |
715 | return; | |
716 | } | |
717 | ||
23346f21 | 718 | if (!machine && perf_guest) { |
a1645ce1 | 719 | pr_err("Can't find guest [%d]'s kernel information\n", |
8115d60c | 720 | event->ip.pid); |
a1645ce1 ZY |
721 | return; |
722 | } | |
723 | ||
8115d60c | 724 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
8c3e10eb | 725 | top.exact_samples++; |
1676b8a0 | 726 | |
8115d60c ACM |
727 | if (perf_event__preprocess_sample(event, session, &al, sample, |
728 | symbol_filter) < 0 || | |
72b8fa17 | 729 | al.filtered) |
1ed091c4 | 730 | return; |
07800601 | 731 | |
5f6f5580 ACM |
732 | if (!kptr_restrict_warned && |
733 | symbol_conf.kptr_restrict && | |
734 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
735 | ui__warning( | |
736 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
737 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
738 | "Kernel%s samples will not be resolved.\n", | |
739 | !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? | |
740 | " modules" : ""); | |
741 | if (use_browser <= 0) | |
742 | sleep(5); | |
743 | kptr_restrict_warned = true; | |
744 | } | |
745 | ||
72b8fa17 | 746 | if (al.sym == NULL) { |
e4a338d0 | 747 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
748 | /* |
749 | * As we do lazy loading of symtabs we only will know if the | |
750 | * specified vmlinux file is invalid when we actually have a | |
751 | * hit in kernel space and then try to load it. So if we get | |
752 | * here and there are _no_ symbols in the DSO backing the | |
753 | * kernel map, bail out. | |
754 | * | |
755 | * We may never get here, for instance, if we use -K/ | |
756 | * --hide-kernel-symbols, even if the user specifies an | |
757 | * invalid --vmlinux ;-) | |
758 | */ | |
e4a338d0 ACM |
759 | if (!kptr_restrict_warned && !vmlinux_warned && |
760 | al.map == machine->vmlinux_maps[MAP__FUNCTION] && | |
72b8fa17 | 761 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
e4a338d0 ACM |
762 | if (symbol_conf.vmlinux_name) { |
763 | ui__warning("The %s file can't be used.\n%s", | |
764 | symbol_conf.vmlinux_name, msg); | |
765 | } else { | |
766 | ui__warning("A vmlinux file was not found.\n%s", | |
767 | msg); | |
768 | } | |
769 | ||
770 | if (use_browser <= 0) | |
771 | sleep(5); | |
772 | vmlinux_warned = true; | |
72b8fa17 | 773 | } |
6cff0e8d KS |
774 | } |
775 | ||
ab81f3fd | 776 | if (al.sym == NULL || !al.sym->ignore) { |
ab81f3fd | 777 | struct hist_entry *he; |
70db7533 | 778 | |
19d4ac3c ACM |
779 | if ((sort__has_parent || symbol_conf.use_callchain) && |
780 | sample->callchain) { | |
781 | err = perf_session__resolve_callchain(session, al.thread, | |
782 | sample->callchain, &parent); | |
783 | if (err) | |
784 | return; | |
785 | } | |
786 | ||
ab81f3fd ACM |
787 | he = perf_session__add_hist_entry(session, &al, sample, evsel); |
788 | if (he == NULL) { | |
789 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
790 | return; | |
5807806a | 791 | } |
ab81f3fd | 792 | |
19d4ac3c ACM |
793 | if (symbol_conf.use_callchain) { |
794 | err = callchain_append(he->callchain, &session->callchain_cursor, | |
795 | sample->period); | |
796 | if (err) | |
797 | return; | |
798 | } | |
799 | ||
800 | if (sort_has_symbols) | |
801 | record_precise_ip(he, evsel->idx, ip); | |
5b2bb75a | 802 | } |
ab81f3fd ACM |
803 | |
804 | return; | |
07800601 IM |
805 | } |
806 | ||
aece948f | 807 | static void perf_session__mmap_read_idx(struct perf_session *self, int idx) |
07800601 | 808 | { |
8d50e5b4 | 809 | struct perf_sample sample; |
7b27509f | 810 | struct perf_evsel *evsel; |
8115d60c | 811 | union perf_event *event; |
5538beca | 812 | int ret; |
07800601 | 813 | |
aece948f | 814 | while ((event = perf_evlist__mmap_read(top.evlist, idx)) != NULL) { |
5538beca FW |
815 | ret = perf_session__parse_sample(self, event, &sample); |
816 | if (ret) { | |
817 | pr_err("Can't parse sample, err = %d\n", ret); | |
818 | continue; | |
819 | } | |
04391deb | 820 | |
7b27509f ACM |
821 | evsel = perf_evlist__id2evsel(self->evlist, sample.id); |
822 | assert(evsel != NULL); | |
823 | ||
5b2bb75a | 824 | if (event->header.type == PERF_RECORD_SAMPLE) |
7b27509f ACM |
825 | perf_event__process_sample(event, evsel, &sample, self); |
826 | else if (event->header.type < PERF_RECORD_MAX) { | |
827 | hists__inc_nr_events(&evsel->hists, event->header.type); | |
8115d60c | 828 | perf_event__process(event, &sample, self); |
7b27509f ACM |
829 | } else |
830 | ++self->hists.stats.nr_unknown_events; | |
07800601 | 831 | } |
07800601 IM |
832 | } |
833 | ||
d8f66248 | 834 | static void perf_session__mmap_read(struct perf_session *self) |
2f01190a | 835 | { |
70db7533 ACM |
836 | int i; |
837 | ||
aece948f ACM |
838 | for (i = 0; i < top.evlist->nr_mmaps; i++) |
839 | perf_session__mmap_read_idx(self, i); | |
2f01190a FW |
840 | } |
841 | ||
72cb7013 ACM |
842 | static void start_counters(struct perf_evlist *evlist) |
843 | { | |
727ab04e ACM |
844 | struct perf_evsel *counter, *first; |
845 | ||
846 | first = list_entry(evlist->entries.next, struct perf_evsel, node); | |
7e4ff9e3 | 847 | |
72cb7013 ACM |
848 | list_for_each_entry(counter, &evlist->entries, node) { |
849 | struct perf_event_attr *attr = &counter->attr; | |
727ab04e ACM |
850 | struct xyarray *group_fd = NULL; |
851 | ||
852 | if (group && counter != first) | |
853 | group_fd = first->fd; | |
716c69fe | 854 | |
72cb7013 ACM |
855 | attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID; |
856 | ||
8c3e10eb | 857 | if (top.freq) { |
72cb7013 ACM |
858 | attr->sample_type |= PERF_SAMPLE_PERIOD; |
859 | attr->freq = 1; | |
8c3e10eb | 860 | attr->sample_freq = top.freq; |
72cb7013 | 861 | } |
d6d901c2 | 862 | |
70db7533 ACM |
863 | if (evlist->nr_entries > 1) { |
864 | attr->sample_type |= PERF_SAMPLE_ID; | |
865 | attr->read_format |= PERF_FORMAT_ID; | |
866 | } | |
867 | ||
19d4ac3c ACM |
868 | if (symbol_conf.use_callchain) |
869 | attr->sample_type |= PERF_SAMPLE_CALLCHAIN; | |
870 | ||
72cb7013 | 871 | attr->mmap = 1; |
ab81f3fd | 872 | attr->comm = 1; |
5d2cd909 | 873 | attr->inherit = inherit; |
7b27509f ACM |
874 | retry_sample_id: |
875 | attr->sample_id_all = sample_id_all_avail ? 1 : 0; | |
72cb7013 | 876 | try_again: |
8c3e10eb | 877 | if (perf_evsel__open(counter, top.evlist->cpus, |
727ab04e ACM |
878 | top.evlist->threads, group, |
879 | group_fd) < 0) { | |
d6d901c2 ZY |
880 | int err = errno; |
881 | ||
c286c419 | 882 | if (err == EPERM || err == EACCES) { |
b8631e6e | 883 | ui__error_paranoid(); |
c286c419 | 884 | goto out_err; |
7b27509f ACM |
885 | } else if (err == EINVAL && sample_id_all_avail) { |
886 | /* | |
887 | * Old kernel, no attr->sample_id_type_all field | |
888 | */ | |
889 | sample_id_all_avail = false; | |
890 | goto retry_sample_id; | |
c286c419 | 891 | } |
d6d901c2 ZY |
892 | /* |
893 | * If it's cycles then fall back to hrtimer | |
894 | * based cpu-clock-tick sw counter, which | |
895 | * is always available even if no PMU support: | |
896 | */ | |
72cb7013 ACM |
897 | if (attr->type == PERF_TYPE_HARDWARE && |
898 | attr->config == PERF_COUNT_HW_CPU_CYCLES) { | |
d6d901c2 | 899 | if (verbose) |
c286c419 ACM |
900 | ui__warning("Cycles event not supported,\n" |
901 | "trying to fall back to cpu-clock-ticks\n"); | |
d6d901c2 ZY |
902 | |
903 | attr->type = PERF_TYPE_SOFTWARE; | |
904 | attr->config = PERF_COUNT_SW_CPU_CLOCK; | |
905 | goto try_again; | |
906 | } | |
c286c419 | 907 | |
ca6a4258 DA |
908 | if (err == ENOENT) { |
909 | ui__warning("The %s event is not supported.\n", | |
910 | event_name(counter)); | |
911 | goto out_err; | |
912 | } | |
913 | ||
c286c419 ACM |
914 | ui__warning("The sys_perf_event_open() syscall " |
915 | "returned with %d (%s). /bin/dmesg " | |
916 | "may provide additional information.\n" | |
917 | "No CONFIG_PERF_EVENTS=y kernel support " | |
918 | "configured?\n", err, strerror(err)); | |
919 | goto out_err; | |
d6d901c2 | 920 | } |
716c69fe | 921 | } |
70db7533 | 922 | |
c286c419 ACM |
923 | if (perf_evlist__mmap(evlist, mmap_pages, false) < 0) { |
924 | ui__warning("Failed to mmap with %d (%s)\n", | |
925 | errno, strerror(errno)); | |
926 | goto out_err; | |
927 | } | |
928 | ||
929 | return; | |
930 | ||
931 | out_err: | |
932 | exit_browser(0); | |
933 | exit(0); | |
716c69fe IM |
934 | } |
935 | ||
19d4ac3c ACM |
936 | static int setup_sample_type(void) |
937 | { | |
938 | if (!sort_has_symbols) { | |
939 | if (symbol_conf.use_callchain) { | |
940 | ui__warning("Selected -g but \"sym\" not present in --sort/-s."); | |
941 | return -EINVAL; | |
942 | } | |
943 | } else if (!dont_use_callchains && callchain_param.mode != CHAIN_NONE) { | |
944 | if (callchain_register_param(&callchain_param) < 0) { | |
945 | ui__warning("Can't register callchain params.\n"); | |
946 | return -EINVAL; | |
947 | } | |
948 | } | |
949 | ||
950 | return 0; | |
951 | } | |
952 | ||
716c69fe IM |
953 | static int __cmd_top(void) |
954 | { | |
955 | pthread_t thread; | |
19d4ac3c | 956 | int ret; |
d8f66248 | 957 | /* |
b3165f41 ACM |
958 | * FIXME: perf_session__new should allow passing a O_MMAP, so that all this |
959 | * mmap reading, etc is encapsulated in it. Use O_WRONLY for now. | |
d8f66248 | 960 | */ |
dcc101d1 ACM |
961 | top.session = perf_session__new(NULL, O_WRONLY, false, false, NULL); |
962 | if (top.session == NULL) | |
b3165f41 | 963 | return -ENOMEM; |
07800601 | 964 | |
19d4ac3c ACM |
965 | ret = setup_sample_type(); |
966 | if (ret) | |
967 | goto out_delete; | |
968 | ||
8c3e10eb | 969 | if (top.target_tid != -1) |
7c940c18 | 970 | perf_event__synthesize_thread_map(top.evlist->threads, |
dcc101d1 | 971 | perf_event__process, top.session); |
5b2bb75a | 972 | else |
dcc101d1 | 973 | perf_event__synthesize_threads(perf_event__process, top.session); |
5b2bb75a | 974 | |
8c3e10eb | 975 | start_counters(top.evlist); |
dcc101d1 ACM |
976 | top.session->evlist = top.evlist; |
977 | perf_session__update_sample_type(top.session); | |
07800601 | 978 | |
2f01190a | 979 | /* Wait for a minimal set of events before starting the snapshot */ |
8c3e10eb | 980 | poll(top.evlist->pollfd, top.evlist->nr_fds, 100); |
2f01190a | 981 | |
dcc101d1 | 982 | perf_session__mmap_read(top.session); |
2f01190a | 983 | |
c0443df1 | 984 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
dcc101d1 | 985 | display_thread), NULL)) { |
07800601 IM |
986 | printf("Could not create display thread.\n"); |
987 | exit(-1); | |
988 | } | |
989 | ||
990 | if (realtime_prio) { | |
991 | struct sched_param param; | |
992 | ||
993 | param.sched_priority = realtime_prio; | |
994 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { | |
995 | printf("Could not set realtime priority.\n"); | |
996 | exit(-1); | |
997 | } | |
998 | } | |
999 | ||
1000 | while (1) { | |
8c3e10eb | 1001 | u64 hits = top.samples; |
07800601 | 1002 | |
dcc101d1 | 1003 | perf_session__mmap_read(top.session); |
07800601 | 1004 | |
8c3e10eb ACM |
1005 | if (hits == top.samples) |
1006 | ret = poll(top.evlist->pollfd, top.evlist->nr_fds, 100); | |
07800601 IM |
1007 | } |
1008 | ||
19d4ac3c ACM |
1009 | out_delete: |
1010 | perf_session__delete(top.session); | |
1011 | top.session = NULL; | |
1012 | ||
1013 | return 0; | |
1014 | } | |
1015 | ||
1016 | static int | |
1017 | parse_callchain_opt(const struct option *opt __used, const char *arg, | |
1018 | int unset) | |
1019 | { | |
1020 | char *tok, *tok2; | |
1021 | char *endptr; | |
1022 | ||
1023 | /* | |
1024 | * --no-call-graph | |
1025 | */ | |
1026 | if (unset) { | |
1027 | dont_use_callchains = true; | |
1028 | return 0; | |
1029 | } | |
1030 | ||
1031 | symbol_conf.use_callchain = true; | |
1032 | ||
1033 | if (!arg) | |
1034 | return 0; | |
1035 | ||
1036 | tok = strtok((char *)arg, ","); | |
1037 | if (!tok) | |
1038 | return -1; | |
1039 | ||
1040 | /* get the output mode */ | |
1041 | if (!strncmp(tok, "graph", strlen(arg))) | |
1042 | callchain_param.mode = CHAIN_GRAPH_ABS; | |
1043 | ||
1044 | else if (!strncmp(tok, "flat", strlen(arg))) | |
1045 | callchain_param.mode = CHAIN_FLAT; | |
1046 | ||
1047 | else if (!strncmp(tok, "fractal", strlen(arg))) | |
1048 | callchain_param.mode = CHAIN_GRAPH_REL; | |
1049 | ||
1050 | else if (!strncmp(tok, "none", strlen(arg))) { | |
1051 | callchain_param.mode = CHAIN_NONE; | |
1052 | symbol_conf.use_callchain = false; | |
1053 | ||
1054 | return 0; | |
1055 | } | |
1056 | ||
1057 | else | |
1058 | return -1; | |
1059 | ||
1060 | /* get the min percentage */ | |
1061 | tok = strtok(NULL, ","); | |
1062 | if (!tok) | |
1063 | goto setup; | |
1064 | ||
1065 | callchain_param.min_percent = strtod(tok, &endptr); | |
1066 | if (tok == endptr) | |
1067 | return -1; | |
1068 | ||
1069 | /* get the print limit */ | |
1070 | tok2 = strtok(NULL, ","); | |
1071 | if (!tok2) | |
1072 | goto setup; | |
1073 | ||
1074 | if (tok2[0] != 'c') { | |
1075 | callchain_param.print_limit = strtod(tok2, &endptr); | |
1076 | tok2 = strtok(NULL, ","); | |
1077 | if (!tok2) | |
1078 | goto setup; | |
1079 | } | |
1080 | ||
1081 | /* get the call chain order */ | |
1082 | if (!strcmp(tok2, "caller")) | |
1083 | callchain_param.order = ORDER_CALLER; | |
1084 | else if (!strcmp(tok2, "callee")) | |
1085 | callchain_param.order = ORDER_CALLEE; | |
1086 | else | |
1087 | return -1; | |
1088 | setup: | |
1089 | if (callchain_register_param(&callchain_param) < 0) { | |
1090 | fprintf(stderr, "Can't register callchain params\n"); | |
1091 | return -1; | |
1092 | } | |
07800601 IM |
1093 | return 0; |
1094 | } | |
b456bae0 IM |
1095 | |
1096 | static const char * const top_usage[] = { | |
1097 | "perf top [<options>]", | |
1098 | NULL | |
1099 | }; | |
1100 | ||
b456bae0 | 1101 | static const struct option options[] = { |
8c3e10eb | 1102 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1103 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1104 | parse_events_option), |
b456bae0 IM |
1105 | OPT_INTEGER('c', "count", &default_interval, |
1106 | "event period to sample"), | |
8c3e10eb | 1107 | OPT_INTEGER('p', "pid", &top.target_pid, |
d6d901c2 | 1108 | "profile events on existing process id"), |
8c3e10eb | 1109 | OPT_INTEGER('t', "tid", &top.target_tid, |
d6d901c2 | 1110 | "profile events on existing thread id"), |
b456bae0 IM |
1111 | OPT_BOOLEAN('a', "all-cpus", &system_wide, |
1112 | "system-wide collection from all CPUs"), | |
8c3e10eb | 1113 | OPT_STRING('C', "cpu", &top.cpu_list, "cpu", |
c45c6ea2 | 1114 | "list of cpus to monitor"), |
b32d133a ACM |
1115 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1116 | "file", "vmlinux pathname"), | |
8c3e10eb | 1117 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1118 | "hide kernel symbols"), |
1967936d | 1119 | OPT_UINTEGER('m', "mmap-pages", &mmap_pages, "number of mmap data pages"), |
b456bae0 IM |
1120 | OPT_INTEGER('r', "realtime", &realtime_prio, |
1121 | "collect data with this RT SCHED_FIFO priority"), | |
8c3e10eb | 1122 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 IM |
1123 | "number of seconds to delay between refreshes"), |
1124 | OPT_BOOLEAN('D', "dump-symtab", &dump_symtab, | |
1125 | "dump the symbol table used for profiling"), | |
8c3e10eb | 1126 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 IM |
1127 | "only display functions with more events than this"), |
1128 | OPT_BOOLEAN('g', "group", &group, | |
1129 | "put the counters into a counter group"), | |
0fdc7e67 MG |
1130 | OPT_BOOLEAN('i', "inherit", &inherit, |
1131 | "child tasks inherit counters"), | |
ab81f3fd | 1132 | OPT_STRING(0, "sym-annotate", &sym_filter, "symbol name", |
6cff0e8d | 1133 | "symbol to annotate"), |
8c3e10eb | 1134 | OPT_BOOLEAN('z', "zero", &top.zero, |
b456bae0 | 1135 | "zero history across updates"), |
8c3e10eb | 1136 | OPT_INTEGER('F', "freq", &top.freq, |
b456bae0 | 1137 | "profile at this frequency"), |
8c3e10eb | 1138 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1139 | "display this many functions"), |
8c3e10eb | 1140 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1141 | "hide user symbols"), |
c0443df1 ACM |
1142 | OPT_BOOLEAN(0, "tui", &use_tui, "Use the TUI interface"), |
1143 | OPT_BOOLEAN(0, "stdio", &use_stdio, "Use the stdio interface"), | |
c0555642 | 1144 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1145 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd ACM |
1146 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
1147 | "sort by key(s): pid, comm, dso, symbol, parent"), | |
1148 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, | |
1149 | "Show a column with the number of samples"), | |
19d4ac3c ACM |
1150 | OPT_CALLBACK_DEFAULT('G', "call-graph", NULL, "output_type,min_percent, call_order", |
1151 | "Display callchains using output_type (graph, flat, fractal, or none), min percent threshold and callchain order. " | |
1152 | "Default: fractal,0.5,callee", &parse_callchain_opt, | |
1153 | callchain_default_opt), | |
ab81f3fd ACM |
1154 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1155 | "Show a column with the sum of periods"), | |
1156 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1157 | "only consider symbols in these dsos"), | |
1158 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1159 | "only consider symbols in these comms"), | |
1160 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1161 | "only consider these symbols"), | |
64c6f0c7 ACM |
1162 | OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, |
1163 | "Interleave source code with assembly code (default)"), | |
1164 | OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, | |
1165 | "Display raw encoding of assembly instructions (default)"), | |
1166 | OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", | |
1167 | "Specify disassembler style (e.g. -M intel for intel syntax)"), | |
b456bae0 IM |
1168 | OPT_END() |
1169 | }; | |
1170 | ||
f37a291c | 1171 | int cmd_top(int argc, const char **argv, const char *prefix __used) |
b456bae0 | 1172 | { |
69aad6f1 ACM |
1173 | struct perf_evsel *pos; |
1174 | int status = -ENOMEM; | |
b456bae0 | 1175 | |
8c3e10eb ACM |
1176 | top.evlist = perf_evlist__new(NULL, NULL); |
1177 | if (top.evlist == NULL) | |
361c99a6 ACM |
1178 | return -ENOMEM; |
1179 | ||
ab81f3fd | 1180 | symbol_conf.exclude_other = false; |
b456bae0 | 1181 | |
b456bae0 IM |
1182 | argc = parse_options(argc, argv, options, top_usage, 0); |
1183 | if (argc) | |
1184 | usage_with_options(top_usage, options); | |
1185 | ||
ab81f3fd ACM |
1186 | if (sort_order == default_sort_order) |
1187 | sort_order = "dso,symbol"; | |
1188 | ||
1189 | setup_sorting(top_usage, options); | |
1190 | ||
c0443df1 ACM |
1191 | if (use_stdio) |
1192 | use_browser = 0; | |
1193 | else if (use_tui) | |
1194 | use_browser = 1; | |
1195 | ||
1196 | setup_browser(false); | |
1197 | ||
b456bae0 | 1198 | /* CPU and PID are mutually exclusive */ |
8c3e10eb | 1199 | if (top.target_tid > 0 && top.cpu_list) { |
b456bae0 IM |
1200 | printf("WARNING: PID switch overriding CPU\n"); |
1201 | sleep(1); | |
8c3e10eb | 1202 | top.cpu_list = NULL; |
b456bae0 IM |
1203 | } |
1204 | ||
8c3e10eb ACM |
1205 | if (top.target_pid != -1) |
1206 | top.target_tid = top.target_pid; | |
7e2ed097 | 1207 | |
8c3e10eb ACM |
1208 | if (perf_evlist__create_maps(top.evlist, top.target_pid, |
1209 | top.target_tid, top.cpu_list) < 0) | |
7e2ed097 ACM |
1210 | usage_with_options(top_usage, options); |
1211 | ||
8c3e10eb ACM |
1212 | if (!top.evlist->nr_entries && |
1213 | perf_evlist__add_default(top.evlist) < 0) { | |
69aad6f1 ACM |
1214 | pr_err("Not enough memory for event selector list\n"); |
1215 | return -ENOMEM; | |
1216 | } | |
5a8e5a30 | 1217 | |
8c3e10eb ACM |
1218 | if (top.delay_secs < 1) |
1219 | top.delay_secs = 1; | |
2f335a02 | 1220 | |
7e4ff9e3 MG |
1221 | /* |
1222 | * User specified count overrides default frequency. | |
1223 | */ | |
1224 | if (default_interval) | |
8c3e10eb ACM |
1225 | top.freq = 0; |
1226 | else if (top.freq) { | |
1227 | default_interval = top.freq; | |
7e4ff9e3 MG |
1228 | } else { |
1229 | fprintf(stderr, "frequency and count are zero, aborting\n"); | |
1230 | exit(EXIT_FAILURE); | |
1231 | } | |
1232 | ||
8c3e10eb ACM |
1233 | list_for_each_entry(pos, &top.evlist->entries, node) { |
1234 | if (perf_evsel__alloc_fd(pos, top.evlist->cpus->nr, | |
1235 | top.evlist->threads->nr) < 0) | |
69aad6f1 ACM |
1236 | goto out_free_fd; |
1237 | /* | |
1238 | * Fill in the ones not specifically initialized via -c: | |
1239 | */ | |
1240 | if (pos->attr.sample_period) | |
1241 | continue; | |
1242 | ||
1243 | pos->attr.sample_period = default_interval; | |
1244 | } | |
1245 | ||
8c3e10eb ACM |
1246 | if (perf_evlist__alloc_pollfd(top.evlist) < 0 || |
1247 | perf_evlist__alloc_mmap(top.evlist) < 0) | |
5c581041 ACM |
1248 | goto out_free_fd; |
1249 | ||
8c3e10eb | 1250 | top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); |
cc841580 | 1251 | |
ab81f3fd | 1252 | symbol_conf.priv_size = sizeof(struct annotation); |
69aad6f1 ACM |
1253 | |
1254 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); | |
1255 | if (symbol__init() < 0) | |
1256 | return -1; | |
1257 | ||
ab81f3fd ACM |
1258 | sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", stdout); |
1259 | sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout); | |
1260 | sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout); | |
1261 | ||
19d4ac3c ACM |
1262 | /* |
1263 | * Avoid annotation data structures overhead when symbols aren't on the | |
1264 | * sort list. | |
1265 | */ | |
1266 | sort_has_symbols = sort_sym.list.next != NULL; | |
1267 | ||
13cc5079 | 1268 | get_term_dimensions(&winsize); |
8c3e10eb | 1269 | if (top.print_entries == 0) { |
13cc5079 | 1270 | update_print_entries(&winsize); |
3b6ed988 ACM |
1271 | signal(SIGWINCH, sig_winch_handler); |
1272 | } | |
1273 | ||
69aad6f1 ACM |
1274 | status = __cmd_top(); |
1275 | out_free_fd: | |
8c3e10eb | 1276 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1277 | |
1278 | return status; | |
b456bae0 | 1279 | } |