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; |
70db7533 | 92 | static unsigned int mmap_pages = 128; |
07800601 | 93 | |
c0555642 | 94 | static bool dump_symtab = false; |
07800601 | 95 | |
13cc5079 | 96 | static struct winsize winsize; |
8ffcda17 | 97 | |
edb7c60e | 98 | static const char *sym_filter = NULL; |
42e59d7d | 99 | static int sym_pcnt_filter = 5; |
07800601 | 100 | |
923c42c1 MG |
101 | /* |
102 | * Source functions | |
103 | */ | |
104 | ||
895f0edc | 105 | void get_term_dimensions(struct winsize *ws) |
3b6ed988 | 106 | { |
13cc5079 ACM |
107 | char *s = getenv("LINES"); |
108 | ||
109 | if (s != NULL) { | |
110 | ws->ws_row = atoi(s); | |
111 | s = getenv("COLUMNS"); | |
112 | if (s != NULL) { | |
113 | ws->ws_col = atoi(s); | |
114 | if (ws->ws_row && ws->ws_col) | |
115 | return; | |
116 | } | |
3b6ed988 | 117 | } |
13cc5079 ACM |
118 | #ifdef TIOCGWINSZ |
119 | if (ioctl(1, TIOCGWINSZ, ws) == 0 && | |
120 | ws->ws_row && ws->ws_col) | |
121 | return; | |
3b6ed988 | 122 | #endif |
13cc5079 ACM |
123 | ws->ws_row = 25; |
124 | ws->ws_col = 80; | |
3b6ed988 ACM |
125 | } |
126 | ||
13cc5079 | 127 | static void update_print_entries(struct winsize *ws) |
3b6ed988 | 128 | { |
8c3e10eb | 129 | top.print_entries = ws->ws_row; |
13cc5079 | 130 | |
8c3e10eb ACM |
131 | if (top.print_entries > 9) |
132 | top.print_entries -= 9; | |
3b6ed988 ACM |
133 | } |
134 | ||
135 | static void sig_winch_handler(int sig __used) | |
136 | { | |
13cc5079 ACM |
137 | get_term_dimensions(&winsize); |
138 | update_print_entries(&winsize); | |
3b6ed988 ACM |
139 | } |
140 | ||
ab81f3fd | 141 | static int parse_source(struct hist_entry *he) |
923c42c1 MG |
142 | { |
143 | struct symbol *sym; | |
ce6f4fab | 144 | struct annotation *notes; |
439d473b | 145 | struct map *map; |
36532461 | 146 | int err = -1; |
923c42c1 | 147 | |
ab81f3fd | 148 | if (!he || !he->ms.sym) |
b0a9ab62 ACM |
149 | return -1; |
150 | ||
ab81f3fd ACM |
151 | sym = he->ms.sym; |
152 | map = he->ms.map; | |
b0a9ab62 ACM |
153 | |
154 | /* | |
155 | * We can't annotate with just /proc/kallsyms | |
156 | */ | |
878b439d | 157 | if (map->dso->symtab_type == SYMTAB__KALLSYMS) { |
ce6f4fab ACM |
158 | pr_err("Can't annotate %s: No vmlinux file was found in the " |
159 | "path\n", sym->name); | |
160 | sleep(1); | |
b0a9ab62 | 161 | return -1; |
b269876c ACM |
162 | } |
163 | ||
ce6f4fab ACM |
164 | notes = symbol__annotation(sym); |
165 | if (notes->src != NULL) { | |
166 | pthread_mutex_lock(¬es->lock); | |
923c42c1 MG |
167 | goto out_assign; |
168 | } | |
923c42c1 | 169 | |
ce6f4fab | 170 | pthread_mutex_lock(¬es->lock); |
923c42c1 | 171 | |
36532461 | 172 | if (symbol__alloc_hist(sym, top.evlist->nr_entries) < 0) { |
c97cf422 | 173 | pthread_mutex_unlock(¬es->lock); |
36532461 ACM |
174 | pr_err("Not enough memory for annotating '%s' symbol!\n", |
175 | sym->name); | |
ce6f4fab | 176 | sleep(1); |
c97cf422 | 177 | return err; |
923c42c1 | 178 | } |
36532461 | 179 | |
ab81f3fd | 180 | err = symbol__annotate(sym, map, 0); |
36532461 | 181 | if (err == 0) { |
923c42c1 | 182 | out_assign: |
ab81f3fd | 183 | top.sym_filter_entry = he; |
36532461 | 184 | } |
c97cf422 | 185 | |
ce6f4fab | 186 | pthread_mutex_unlock(¬es->lock); |
36532461 | 187 | return err; |
923c42c1 MG |
188 | } |
189 | ||
ab81f3fd | 190 | static void __zero_source_counters(struct hist_entry *he) |
923c42c1 | 191 | { |
ab81f3fd | 192 | struct symbol *sym = he->ms.sym; |
36532461 | 193 | symbol__annotate_zero_histograms(sym); |
923c42c1 MG |
194 | } |
195 | ||
ab81f3fd | 196 | static void record_precise_ip(struct hist_entry *he, int counter, u64 ip) |
923c42c1 | 197 | { |
ce6f4fab ACM |
198 | struct annotation *notes; |
199 | struct symbol *sym; | |
200 | ||
ab81f3fd ACM |
201 | if (he == NULL || he->ms.sym == NULL || |
202 | (he != top.sym_filter_entry && use_browser != 1)) | |
923c42c1 MG |
203 | return; |
204 | ||
ab81f3fd | 205 | sym = he->ms.sym; |
ce6f4fab ACM |
206 | notes = symbol__annotation(sym); |
207 | ||
208 | if (pthread_mutex_trylock(¬es->lock)) | |
923c42c1 MG |
209 | return; |
210 | ||
ab81f3fd ACM |
211 | if (notes->src == NULL && |
212 | symbol__alloc_hist(sym, top.evlist->nr_entries) < 0) { | |
213 | pthread_mutex_unlock(¬es->lock); | |
214 | pr_err("Not enough memory for annotating '%s' symbol!\n", | |
215 | sym->name); | |
216 | sleep(1); | |
217 | return; | |
218 | } | |
219 | ||
220 | ip = he->ms.map->map_ip(he->ms.map, ip); | |
221 | symbol__inc_addr_samples(sym, he->ms.map, counter, ip); | |
c7ad21af | 222 | |
ce6f4fab | 223 | pthread_mutex_unlock(¬es->lock); |
923c42c1 MG |
224 | } |
225 | ||
ab81f3fd | 226 | static void show_details(struct hist_entry *he) |
923c42c1 | 227 | { |
ce6f4fab | 228 | struct annotation *notes; |
923c42c1 | 229 | struct symbol *symbol; |
36532461 | 230 | int more; |
923c42c1 | 231 | |
ab81f3fd | 232 | if (!he) |
923c42c1 MG |
233 | return; |
234 | ||
ab81f3fd | 235 | symbol = he->ms.sym; |
ce6f4fab ACM |
236 | notes = symbol__annotation(symbol); |
237 | ||
238 | pthread_mutex_lock(¬es->lock); | |
239 | ||
240 | if (notes->src == NULL) | |
241 | goto out_unlock; | |
923c42c1 | 242 | |
8c3e10eb | 243 | printf("Showing %s for %s\n", event_name(top.sym_evsel), symbol->name); |
923c42c1 MG |
244 | printf(" Events Pcnt (>=%d%%)\n", sym_pcnt_filter); |
245 | ||
ab81f3fd | 246 | more = symbol__annotate_printf(symbol, he->ms.map, top.sym_evsel->idx, |
d5e3d747 | 247 | 0, sym_pcnt_filter, top.print_entries, 4); |
36532461 ACM |
248 | if (top.zero) |
249 | symbol__annotate_zero_histogram(symbol, top.sym_evsel->idx); | |
250 | else | |
ce6f4fab | 251 | symbol__annotate_decay_histogram(symbol, top.sym_evsel->idx); |
36532461 | 252 | if (more != 0) |
923c42c1 | 253 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
ce6f4fab ACM |
254 | out_unlock: |
255 | pthread_mutex_unlock(¬es->lock); | |
923c42c1 | 256 | } |
07800601 | 257 | |
07800601 IM |
258 | static const char CONSOLE_CLEAR[] = "\e[H\e[2J"; |
259 | ||
ab81f3fd ACM |
260 | static struct hist_entry * |
261 | perf_session__add_hist_entry(struct perf_session *session, | |
262 | struct addr_location *al, | |
263 | struct perf_sample *sample, | |
264 | struct perf_evsel *evsel) | |
de04687f | 265 | { |
ab81f3fd ACM |
266 | struct hist_entry *he; |
267 | ||
268 | he = __hists__add_entry(&evsel->hists, al, NULL, sample->period); | |
269 | if (he == NULL) | |
270 | return NULL; | |
271 | ||
272 | session->hists.stats.total_period += sample->period; | |
273 | hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); | |
274 | return he; | |
de04687f | 275 | } |
07800601 | 276 | |
dcc101d1 | 277 | static void print_sym_table(void) |
07800601 | 278 | { |
8c3e10eb ACM |
279 | char bf[160]; |
280 | int printed = 0; | |
13cc5079 | 281 | const int win_width = winsize.ws_col - 1; |
d94b9430 | 282 | |
0f5486b5 | 283 | puts(CONSOLE_CLEAR); |
07800601 | 284 | |
8c3e10eb ACM |
285 | perf_top__header_snprintf(&top, bf, sizeof(bf)); |
286 | printf("%s\n", bf); | |
07800601 | 287 | |
8c3e10eb | 288 | perf_top__reset_sample_counters(&top); |
07800601 | 289 | |
1a105f74 | 290 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 291 | |
dcc101d1 ACM |
292 | if (top.total_lost_warned != top.session->hists.stats.total_lost) { |
293 | top.total_lost_warned = top.session->hists.stats.total_lost; | |
93fc64f1 ACM |
294 | color_fprintf(stdout, PERF_COLOR_RED, "WARNING:"); |
295 | printf(" LOST %" PRIu64 " events, Check IO/CPU overload\n", | |
dcc101d1 | 296 | top.total_lost_warned); |
ab81f3fd | 297 | ++printed; |
93fc64f1 ACM |
298 | } |
299 | ||
c97cf422 ACM |
300 | if (top.sym_filter_entry) { |
301 | show_details(top.sym_filter_entry); | |
923c42c1 MG |
302 | return; |
303 | } | |
304 | ||
ab81f3fd ACM |
305 | hists__collapse_resort_threaded(&top.sym_evsel->hists); |
306 | hists__output_resort_threaded(&top.sym_evsel->hists); | |
307 | hists__decay_entries(&top.sym_evsel->hists); | |
308 | hists__output_recalc_col_len(&top.sym_evsel->hists, winsize.ws_row - 3); | |
7cc017ed | 309 | putchar('\n'); |
ab81f3fd ACM |
310 | hists__fprintf(&top.sym_evsel->hists, NULL, false, false, |
311 | winsize.ws_row - 4 - printed, win_width, stdout); | |
07800601 IM |
312 | } |
313 | ||
923c42c1 MG |
314 | static void prompt_integer(int *target, const char *msg) |
315 | { | |
316 | char *buf = malloc(0), *p; | |
317 | size_t dummy = 0; | |
318 | int tmp; | |
319 | ||
320 | fprintf(stdout, "\n%s: ", msg); | |
321 | if (getline(&buf, &dummy, stdin) < 0) | |
322 | return; | |
323 | ||
324 | p = strchr(buf, '\n'); | |
325 | if (p) | |
326 | *p = 0; | |
327 | ||
328 | p = buf; | |
329 | while(*p) { | |
330 | if (!isdigit(*p)) | |
331 | goto out_free; | |
332 | p++; | |
333 | } | |
334 | tmp = strtoul(buf, NULL, 10); | |
335 | *target = tmp; | |
336 | out_free: | |
337 | free(buf); | |
338 | } | |
339 | ||
340 | static void prompt_percent(int *target, const char *msg) | |
341 | { | |
342 | int tmp = 0; | |
343 | ||
344 | prompt_integer(&tmp, msg); | |
345 | if (tmp >= 0 && tmp <= 100) | |
346 | *target = tmp; | |
347 | } | |
348 | ||
ab81f3fd | 349 | static void prompt_symbol(struct hist_entry **target, const char *msg) |
923c42c1 MG |
350 | { |
351 | char *buf = malloc(0), *p; | |
ab81f3fd ACM |
352 | struct hist_entry *syme = *target, *n, *found = NULL; |
353 | struct rb_node *next; | |
923c42c1 MG |
354 | size_t dummy = 0; |
355 | ||
356 | /* zero counters of active symbol */ | |
357 | if (syme) { | |
923c42c1 MG |
358 | __zero_source_counters(syme); |
359 | *target = NULL; | |
923c42c1 MG |
360 | } |
361 | ||
362 | fprintf(stdout, "\n%s: ", msg); | |
363 | if (getline(&buf, &dummy, stdin) < 0) | |
364 | goto out_free; | |
365 | ||
366 | p = strchr(buf, '\n'); | |
367 | if (p) | |
368 | *p = 0; | |
369 | ||
ab81f3fd ACM |
370 | next = rb_first(&top.sym_evsel->hists.entries); |
371 | while (next) { | |
372 | n = rb_entry(next, struct hist_entry, rb_node); | |
373 | if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { | |
374 | found = n; | |
923c42c1 MG |
375 | break; |
376 | } | |
ab81f3fd | 377 | next = rb_next(&n->rb_node); |
923c42c1 MG |
378 | } |
379 | ||
380 | if (!found) { | |
66aeb6d5 | 381 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
923c42c1 MG |
382 | sleep(1); |
383 | return; | |
384 | } else | |
385 | parse_source(found); | |
386 | ||
387 | out_free: | |
388 | free(buf); | |
389 | } | |
390 | ||
091bd2e9 | 391 | static void print_mapped_keys(void) |
923c42c1 | 392 | { |
091bd2e9 MG |
393 | char *name = NULL; |
394 | ||
c97cf422 | 395 | if (top.sym_filter_entry) { |
ab81f3fd | 396 | struct symbol *sym = top.sym_filter_entry->ms.sym; |
091bd2e9 MG |
397 | name = sym->name; |
398 | } | |
399 | ||
400 | fprintf(stdout, "\nMapped keys:\n"); | |
8c3e10eb ACM |
401 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top.delay_secs); |
402 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top.print_entries); | |
091bd2e9 | 403 | |
8c3e10eb ACM |
404 | if (top.evlist->nr_entries > 1) |
405 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", event_name(top.sym_evsel)); | |
091bd2e9 | 406 | |
8c3e10eb | 407 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top.count_filter); |
091bd2e9 | 408 | |
6cff0e8d KS |
409 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", sym_pcnt_filter); |
410 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); | |
411 | fprintf(stdout, "\t[S] stop annotation.\n"); | |
091bd2e9 | 412 | |
8ffcda17 | 413 | fprintf(stdout, |
1a72cfa6 | 414 | "\t[K] hide kernel_symbols symbols. \t(%s)\n", |
8c3e10eb | 415 | top.hide_kernel_symbols ? "yes" : "no"); |
8ffcda17 ACM |
416 | fprintf(stdout, |
417 | "\t[U] hide user symbols. \t(%s)\n", | |
8c3e10eb ACM |
418 | top.hide_user_symbols ? "yes" : "no"); |
419 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top.zero ? 1 : 0); | |
091bd2e9 MG |
420 | fprintf(stdout, "\t[qQ] quit.\n"); |
421 | } | |
422 | ||
423 | static int key_mapped(int c) | |
424 | { | |
425 | switch (c) { | |
426 | case 'd': | |
427 | case 'e': | |
428 | case 'f': | |
429 | case 'z': | |
430 | case 'q': | |
431 | case 'Q': | |
8ffcda17 ACM |
432 | case 'K': |
433 | case 'U': | |
6cff0e8d KS |
434 | case 'F': |
435 | case 's': | |
436 | case 'S': | |
091bd2e9 MG |
437 | return 1; |
438 | case 'E': | |
83a0944f IM |
439 | default: |
440 | break; | |
091bd2e9 MG |
441 | } |
442 | ||
443 | return 0; | |
923c42c1 MG |
444 | } |
445 | ||
dcc101d1 | 446 | static void handle_keypress(int c) |
923c42c1 | 447 | { |
091bd2e9 MG |
448 | if (!key_mapped(c)) { |
449 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; | |
450 | struct termios tc, save; | |
451 | ||
452 | print_mapped_keys(); | |
453 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); | |
454 | fflush(stdout); | |
455 | ||
456 | tcgetattr(0, &save); | |
457 | tc = save; | |
458 | tc.c_lflag &= ~(ICANON | ECHO); | |
459 | tc.c_cc[VMIN] = 0; | |
460 | tc.c_cc[VTIME] = 0; | |
461 | tcsetattr(0, TCSANOW, &tc); | |
462 | ||
463 | poll(&stdin_poll, 1, -1); | |
464 | c = getc(stdin); | |
465 | ||
466 | tcsetattr(0, TCSAFLUSH, &save); | |
467 | if (!key_mapped(c)) | |
468 | return; | |
469 | } | |
470 | ||
923c42c1 MG |
471 | switch (c) { |
472 | case 'd': | |
8c3e10eb ACM |
473 | prompt_integer(&top.delay_secs, "Enter display delay"); |
474 | if (top.delay_secs < 1) | |
475 | top.delay_secs = 1; | |
923c42c1 MG |
476 | break; |
477 | case 'e': | |
8c3e10eb ACM |
478 | prompt_integer(&top.print_entries, "Enter display entries (lines)"); |
479 | if (top.print_entries == 0) { | |
13cc5079 | 480 | sig_winch_handler(SIGWINCH); |
3b6ed988 ACM |
481 | signal(SIGWINCH, sig_winch_handler); |
482 | } else | |
483 | signal(SIGWINCH, SIG_DFL); | |
923c42c1 MG |
484 | break; |
485 | case 'E': | |
8c3e10eb | 486 | if (top.evlist->nr_entries > 1) { |
ce2d17ca AN |
487 | /* Select 0 as the default event: */ |
488 | int counter = 0; | |
489 | ||
923c42c1 | 490 | fprintf(stderr, "\nAvailable events:"); |
69aad6f1 | 491 | |
8c3e10eb ACM |
492 | list_for_each_entry(top.sym_evsel, &top.evlist->entries, node) |
493 | fprintf(stderr, "\n\t%d %s", top.sym_evsel->idx, event_name(top.sym_evsel)); | |
923c42c1 | 494 | |
ec52d976 | 495 | prompt_integer(&counter, "Enter details event counter"); |
923c42c1 | 496 | |
ec52d976 | 497 | if (counter >= top.evlist->nr_entries) { |
8c3e10eb | 498 | top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); |
8c3e10eb | 499 | fprintf(stderr, "Sorry, no such event, using %s.\n", event_name(top.sym_evsel)); |
923c42c1 | 500 | sleep(1); |
69aad6f1 | 501 | break; |
923c42c1 | 502 | } |
8c3e10eb | 503 | list_for_each_entry(top.sym_evsel, &top.evlist->entries, node) |
ec52d976 | 504 | if (top.sym_evsel->idx == counter) |
69aad6f1 | 505 | break; |
ec52d976 ACM |
506 | } else |
507 | top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); | |
923c42c1 MG |
508 | break; |
509 | case 'f': | |
8c3e10eb | 510 | prompt_integer(&top.count_filter, "Enter display event count filter"); |
923c42c1 MG |
511 | break; |
512 | case 'F': | |
513 | prompt_percent(&sym_pcnt_filter, "Enter details display event filter (percent)"); | |
514 | break; | |
8ffcda17 | 515 | case 'K': |
8c3e10eb | 516 | top.hide_kernel_symbols = !top.hide_kernel_symbols; |
8ffcda17 | 517 | break; |
923c42c1 MG |
518 | case 'q': |
519 | case 'Q': | |
520 | printf("exiting.\n"); | |
c338aee8 | 521 | if (dump_symtab) |
dcc101d1 | 522 | perf_session__fprintf_dsos(top.session, stderr); |
923c42c1 MG |
523 | exit(0); |
524 | case 's': | |
c97cf422 | 525 | prompt_symbol(&top.sym_filter_entry, "Enter details symbol"); |
923c42c1 MG |
526 | break; |
527 | case 'S': | |
c97cf422 | 528 | if (!top.sym_filter_entry) |
923c42c1 MG |
529 | break; |
530 | else { | |
ab81f3fd | 531 | struct hist_entry *syme = top.sym_filter_entry; |
923c42c1 | 532 | |
c97cf422 | 533 | top.sym_filter_entry = NULL; |
923c42c1 | 534 | __zero_source_counters(syme); |
923c42c1 MG |
535 | } |
536 | break; | |
8ffcda17 | 537 | case 'U': |
8c3e10eb | 538 | top.hide_user_symbols = !top.hide_user_symbols; |
8ffcda17 | 539 | break; |
923c42c1 | 540 | case 'z': |
8c3e10eb | 541 | top.zero = !top.zero; |
923c42c1 | 542 | break; |
83a0944f IM |
543 | default: |
544 | break; | |
923c42c1 MG |
545 | } |
546 | } | |
547 | ||
ab81f3fd ACM |
548 | static void perf_top__sort_new_samples(void *arg) |
549 | { | |
550 | struct perf_top *t = arg; | |
551 | perf_top__reset_sample_counters(t); | |
552 | ||
553 | if (t->evlist->selected != NULL) | |
554 | t->sym_evsel = t->evlist->selected; | |
555 | ||
556 | hists__collapse_resort_threaded(&t->sym_evsel->hists); | |
557 | hists__output_resort_threaded(&t->sym_evsel->hists); | |
558 | hists__decay_entries(&t->sym_evsel->hists); | |
559 | hists__output_recalc_col_len(&t->sym_evsel->hists, winsize.ws_row - 3); | |
560 | } | |
561 | ||
c0443df1 ACM |
562 | static void *display_thread_tui(void *arg __used) |
563 | { | |
ab81f3fd ACM |
564 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
565 | ||
566 | perf_top__sort_new_samples(&top); | |
567 | perf_evlist__tui_browse_hists(top.evlist, help, | |
568 | perf_top__sort_new_samples, | |
569 | &top, top.delay_secs); | |
570 | ||
c0443df1 ACM |
571 | exit_browser(0); |
572 | exit(0); | |
573 | return NULL; | |
574 | } | |
575 | ||
f37a291c | 576 | static void *display_thread(void *arg __used) |
07800601 | 577 | { |
0f5486b5 | 578 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
923c42c1 MG |
579 | struct termios tc, save; |
580 | int delay_msecs, c; | |
581 | ||
582 | tcgetattr(0, &save); | |
583 | tc = save; | |
584 | tc.c_lflag &= ~(ICANON | ECHO); | |
585 | tc.c_cc[VMIN] = 0; | |
586 | tc.c_cc[VTIME] = 0; | |
091bd2e9 | 587 | |
923c42c1 | 588 | repeat: |
8c3e10eb | 589 | delay_msecs = top.delay_secs * 1000; |
923c42c1 MG |
590 | tcsetattr(0, TCSANOW, &tc); |
591 | /* trash return*/ | |
592 | getc(stdin); | |
07800601 | 593 | |
0f5486b5 | 594 | do { |
dcc101d1 | 595 | print_sym_table(); |
0f5486b5 FW |
596 | } while (!poll(&stdin_poll, 1, delay_msecs) == 1); |
597 | ||
923c42c1 MG |
598 | c = getc(stdin); |
599 | tcsetattr(0, TCSAFLUSH, &save); | |
600 | ||
dcc101d1 | 601 | handle_keypress(c); |
923c42c1 | 602 | goto repeat; |
07800601 IM |
603 | |
604 | return NULL; | |
605 | } | |
606 | ||
2ab52083 | 607 | /* Tag samples to be skipped. */ |
f37a291c | 608 | static const char *skip_symbols[] = { |
2ab52083 | 609 | "default_idle", |
b0e8572f | 610 | "native_safe_halt", |
2ab52083 AB |
611 | "cpu_idle", |
612 | "enter_idle", | |
613 | "exit_idle", | |
614 | "mwait_idle", | |
59b90056 | 615 | "mwait_idle_with_hints", |
8357275b | 616 | "poll_idle", |
3a3393ef AB |
617 | "ppc64_runlatch_off", |
618 | "pseries_dedicated_idle_sleep", | |
2ab52083 AB |
619 | NULL |
620 | }; | |
621 | ||
ab81f3fd | 622 | static int symbol_filter(struct map *map __used, struct symbol *sym) |
07800601 | 623 | { |
de04687f | 624 | const char *name = sym->name; |
2ab52083 | 625 | int i; |
de04687f | 626 | |
3a3393ef AB |
627 | /* |
628 | * ppc64 uses function descriptors and appends a '.' to the | |
629 | * start of every instruction address. Remove it. | |
630 | */ | |
631 | if (name[0] == '.') | |
632 | name++; | |
633 | ||
de04687f ACM |
634 | if (!strcmp(name, "_text") || |
635 | !strcmp(name, "_etext") || | |
636 | !strcmp(name, "_sinittext") || | |
637 | !strncmp("init_module", name, 11) || | |
638 | !strncmp("cleanup_module", name, 14) || | |
639 | strstr(name, "_text_start") || | |
640 | strstr(name, "_text_end")) | |
07800601 | 641 | return 1; |
07800601 | 642 | |
2ab52083 AB |
643 | for (i = 0; skip_symbols[i]; i++) { |
644 | if (!strcmp(skip_symbols[i], name)) { | |
171b3be9 | 645 | sym->ignore = true; |
2ab52083 AB |
646 | break; |
647 | } | |
648 | } | |
07800601 | 649 | |
07800601 IM |
650 | return 0; |
651 | } | |
652 | ||
8115d60c ACM |
653 | static void perf_event__process_sample(const union perf_event *event, |
654 | struct perf_sample *sample, | |
655 | struct perf_session *session) | |
07800601 | 656 | { |
19d4ac3c | 657 | struct symbol *parent = NULL; |
8115d60c | 658 | u64 ip = event->ip.ip; |
1ed091c4 | 659 | struct addr_location al; |
23346f21 | 660 | struct machine *machine; |
19d4ac3c | 661 | int err; |
8115d60c | 662 | u8 origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
5b2bb75a | 663 | |
8c3e10eb | 664 | ++top.samples; |
24bfef0f | 665 | |
8ffcda17 | 666 | switch (origin) { |
1ed091c4 | 667 | case PERF_RECORD_MISC_USER: |
8c3e10eb ACM |
668 | ++top.us_samples; |
669 | if (top.hide_user_symbols) | |
8ffcda17 | 670 | return; |
23346f21 | 671 | machine = perf_session__find_host_machine(session); |
1ed091c4 | 672 | break; |
5b2bb75a | 673 | case PERF_RECORD_MISC_KERNEL: |
8c3e10eb ACM |
674 | ++top.kernel_samples; |
675 | if (top.hide_kernel_symbols) | |
8ffcda17 | 676 | return; |
23346f21 | 677 | machine = perf_session__find_host_machine(session); |
a1645ce1 ZY |
678 | break; |
679 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
8c3e10eb | 680 | ++top.guest_kernel_samples; |
8115d60c | 681 | machine = perf_session__find_machine(session, event->ip.pid); |
5b2bb75a | 682 | break; |
a1645ce1 | 683 | case PERF_RECORD_MISC_GUEST_USER: |
8c3e10eb | 684 | ++top.guest_us_samples; |
a1645ce1 ZY |
685 | /* |
686 | * TODO: we don't process guest user from host side | |
687 | * except simple counting. | |
688 | */ | |
689 | return; | |
5b2bb75a ACM |
690 | default: |
691 | return; | |
692 | } | |
693 | ||
23346f21 | 694 | if (!machine && perf_guest) { |
a1645ce1 | 695 | pr_err("Can't find guest [%d]'s kernel information\n", |
8115d60c | 696 | event->ip.pid); |
a1645ce1 ZY |
697 | return; |
698 | } | |
699 | ||
8115d60c | 700 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
8c3e10eb | 701 | top.exact_samples++; |
1676b8a0 | 702 | |
8115d60c ACM |
703 | if (perf_event__preprocess_sample(event, session, &al, sample, |
704 | symbol_filter) < 0 || | |
72b8fa17 | 705 | al.filtered) |
1ed091c4 | 706 | return; |
07800601 | 707 | |
5f6f5580 ACM |
708 | if (!kptr_restrict_warned && |
709 | symbol_conf.kptr_restrict && | |
710 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
711 | ui__warning( | |
712 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
713 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
714 | "Kernel%s samples will not be resolved.\n", | |
715 | !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? | |
716 | " modules" : ""); | |
717 | if (use_browser <= 0) | |
718 | sleep(5); | |
719 | kptr_restrict_warned = true; | |
720 | } | |
721 | ||
72b8fa17 | 722 | if (al.sym == NULL) { |
e4a338d0 | 723 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
724 | /* |
725 | * As we do lazy loading of symtabs we only will know if the | |
726 | * specified vmlinux file is invalid when we actually have a | |
727 | * hit in kernel space and then try to load it. So if we get | |
728 | * here and there are _no_ symbols in the DSO backing the | |
729 | * kernel map, bail out. | |
730 | * | |
731 | * We may never get here, for instance, if we use -K/ | |
732 | * --hide-kernel-symbols, even if the user specifies an | |
733 | * invalid --vmlinux ;-) | |
734 | */ | |
e4a338d0 ACM |
735 | if (!kptr_restrict_warned && !vmlinux_warned && |
736 | al.map == machine->vmlinux_maps[MAP__FUNCTION] && | |
72b8fa17 | 737 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
e4a338d0 ACM |
738 | if (symbol_conf.vmlinux_name) { |
739 | ui__warning("The %s file can't be used.\n%s", | |
740 | symbol_conf.vmlinux_name, msg); | |
741 | } else { | |
742 | ui__warning("A vmlinux file was not found.\n%s", | |
743 | msg); | |
744 | } | |
745 | ||
746 | if (use_browser <= 0) | |
747 | sleep(5); | |
748 | vmlinux_warned = true; | |
72b8fa17 | 749 | } |
6cff0e8d KS |
750 | } |
751 | ||
ab81f3fd | 752 | if (al.sym == NULL || !al.sym->ignore) { |
70db7533 | 753 | struct perf_evsel *evsel; |
ab81f3fd | 754 | struct hist_entry *he; |
70db7533 | 755 | |
8c3e10eb | 756 | evsel = perf_evlist__id2evsel(top.evlist, sample->id); |
70db7533 | 757 | assert(evsel != NULL); |
ab81f3fd | 758 | |
19d4ac3c ACM |
759 | if ((sort__has_parent || symbol_conf.use_callchain) && |
760 | sample->callchain) { | |
761 | err = perf_session__resolve_callchain(session, al.thread, | |
762 | sample->callchain, &parent); | |
763 | if (err) | |
764 | return; | |
765 | } | |
766 | ||
ab81f3fd ACM |
767 | he = perf_session__add_hist_entry(session, &al, sample, evsel); |
768 | if (he == NULL) { | |
769 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
770 | return; | |
5807806a | 771 | } |
ab81f3fd | 772 | |
19d4ac3c ACM |
773 | if (symbol_conf.use_callchain) { |
774 | err = callchain_append(he->callchain, &session->callchain_cursor, | |
775 | sample->period); | |
776 | if (err) | |
777 | return; | |
778 | } | |
779 | ||
780 | if (sort_has_symbols) | |
781 | record_precise_ip(he, evsel->idx, ip); | |
5b2bb75a | 782 | } |
ab81f3fd ACM |
783 | |
784 | return; | |
07800601 IM |
785 | } |
786 | ||
aece948f | 787 | static void perf_session__mmap_read_idx(struct perf_session *self, int idx) |
07800601 | 788 | { |
8d50e5b4 | 789 | struct perf_sample sample; |
8115d60c | 790 | union perf_event *event; |
5538beca | 791 | int ret; |
07800601 | 792 | |
aece948f | 793 | while ((event = perf_evlist__mmap_read(top.evlist, idx)) != NULL) { |
5538beca FW |
794 | ret = perf_session__parse_sample(self, event, &sample); |
795 | if (ret) { | |
796 | pr_err("Can't parse sample, err = %d\n", ret); | |
797 | continue; | |
798 | } | |
04391deb | 799 | |
5b2bb75a | 800 | if (event->header.type == PERF_RECORD_SAMPLE) |
8115d60c | 801 | perf_event__process_sample(event, &sample, self); |
5b2bb75a | 802 | else |
8115d60c | 803 | perf_event__process(event, &sample, self); |
07800601 | 804 | } |
07800601 IM |
805 | } |
806 | ||
d8f66248 | 807 | static void perf_session__mmap_read(struct perf_session *self) |
2f01190a | 808 | { |
70db7533 ACM |
809 | int i; |
810 | ||
aece948f ACM |
811 | for (i = 0; i < top.evlist->nr_mmaps; i++) |
812 | perf_session__mmap_read_idx(self, i); | |
2f01190a FW |
813 | } |
814 | ||
72cb7013 ACM |
815 | static void start_counters(struct perf_evlist *evlist) |
816 | { | |
817 | struct perf_evsel *counter; | |
7e4ff9e3 | 818 | |
72cb7013 ACM |
819 | list_for_each_entry(counter, &evlist->entries, node) { |
820 | struct perf_event_attr *attr = &counter->attr; | |
716c69fe | 821 | |
72cb7013 ACM |
822 | attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID; |
823 | ||
8c3e10eb | 824 | if (top.freq) { |
72cb7013 ACM |
825 | attr->sample_type |= PERF_SAMPLE_PERIOD; |
826 | attr->freq = 1; | |
8c3e10eb | 827 | attr->sample_freq = top.freq; |
72cb7013 | 828 | } |
d6d901c2 | 829 | |
70db7533 ACM |
830 | if (evlist->nr_entries > 1) { |
831 | attr->sample_type |= PERF_SAMPLE_ID; | |
832 | attr->read_format |= PERF_FORMAT_ID; | |
833 | } | |
834 | ||
19d4ac3c ACM |
835 | if (symbol_conf.use_callchain) |
836 | attr->sample_type |= PERF_SAMPLE_CALLCHAIN; | |
837 | ||
72cb7013 | 838 | attr->mmap = 1; |
ab81f3fd | 839 | attr->comm = 1; |
5d2cd909 | 840 | attr->inherit = inherit; |
72cb7013 | 841 | try_again: |
8c3e10eb | 842 | if (perf_evsel__open(counter, top.evlist->cpus, |
5d2cd909 | 843 | top.evlist->threads, group) < 0) { |
d6d901c2 ZY |
844 | int err = errno; |
845 | ||
c286c419 ACM |
846 | if (err == EPERM || err == EACCES) { |
847 | ui__warning_paranoid(); | |
848 | goto out_err; | |
849 | } | |
d6d901c2 ZY |
850 | /* |
851 | * If it's cycles then fall back to hrtimer | |
852 | * based cpu-clock-tick sw counter, which | |
853 | * is always available even if no PMU support: | |
854 | */ | |
72cb7013 ACM |
855 | if (attr->type == PERF_TYPE_HARDWARE && |
856 | attr->config == PERF_COUNT_HW_CPU_CYCLES) { | |
d6d901c2 | 857 | if (verbose) |
c286c419 ACM |
858 | ui__warning("Cycles event not supported,\n" |
859 | "trying to fall back to cpu-clock-ticks\n"); | |
d6d901c2 ZY |
860 | |
861 | attr->type = PERF_TYPE_SOFTWARE; | |
862 | attr->config = PERF_COUNT_SW_CPU_CLOCK; | |
863 | goto try_again; | |
864 | } | |
c286c419 | 865 | |
ca6a4258 DA |
866 | if (err == ENOENT) { |
867 | ui__warning("The %s event is not supported.\n", | |
868 | event_name(counter)); | |
869 | goto out_err; | |
870 | } | |
871 | ||
c286c419 ACM |
872 | ui__warning("The sys_perf_event_open() syscall " |
873 | "returned with %d (%s). /bin/dmesg " | |
874 | "may provide additional information.\n" | |
875 | "No CONFIG_PERF_EVENTS=y kernel support " | |
876 | "configured?\n", err, strerror(err)); | |
877 | goto out_err; | |
d6d901c2 | 878 | } |
716c69fe | 879 | } |
70db7533 | 880 | |
c286c419 ACM |
881 | if (perf_evlist__mmap(evlist, mmap_pages, false) < 0) { |
882 | ui__warning("Failed to mmap with %d (%s)\n", | |
883 | errno, strerror(errno)); | |
884 | goto out_err; | |
885 | } | |
886 | ||
887 | return; | |
888 | ||
889 | out_err: | |
890 | exit_browser(0); | |
891 | exit(0); | |
716c69fe IM |
892 | } |
893 | ||
19d4ac3c ACM |
894 | static int setup_sample_type(void) |
895 | { | |
896 | if (!sort_has_symbols) { | |
897 | if (symbol_conf.use_callchain) { | |
898 | ui__warning("Selected -g but \"sym\" not present in --sort/-s."); | |
899 | return -EINVAL; | |
900 | } | |
901 | } else if (!dont_use_callchains && callchain_param.mode != CHAIN_NONE) { | |
902 | if (callchain_register_param(&callchain_param) < 0) { | |
903 | ui__warning("Can't register callchain params.\n"); | |
904 | return -EINVAL; | |
905 | } | |
906 | } | |
907 | ||
908 | return 0; | |
909 | } | |
910 | ||
716c69fe IM |
911 | static int __cmd_top(void) |
912 | { | |
913 | pthread_t thread; | |
19d4ac3c | 914 | int ret; |
d8f66248 | 915 | /* |
b3165f41 ACM |
916 | * FIXME: perf_session__new should allow passing a O_MMAP, so that all this |
917 | * mmap reading, etc is encapsulated in it. Use O_WRONLY for now. | |
d8f66248 | 918 | */ |
dcc101d1 ACM |
919 | top.session = perf_session__new(NULL, O_WRONLY, false, false, NULL); |
920 | if (top.session == NULL) | |
b3165f41 | 921 | return -ENOMEM; |
07800601 | 922 | |
19d4ac3c ACM |
923 | ret = setup_sample_type(); |
924 | if (ret) | |
925 | goto out_delete; | |
926 | ||
8c3e10eb | 927 | if (top.target_tid != -1) |
7c940c18 | 928 | perf_event__synthesize_thread_map(top.evlist->threads, |
dcc101d1 | 929 | perf_event__process, top.session); |
5b2bb75a | 930 | else |
dcc101d1 | 931 | perf_event__synthesize_threads(perf_event__process, top.session); |
5b2bb75a | 932 | |
8c3e10eb | 933 | start_counters(top.evlist); |
dcc101d1 ACM |
934 | top.session->evlist = top.evlist; |
935 | perf_session__update_sample_type(top.session); | |
07800601 | 936 | |
2f01190a | 937 | /* Wait for a minimal set of events before starting the snapshot */ |
8c3e10eb | 938 | poll(top.evlist->pollfd, top.evlist->nr_fds, 100); |
2f01190a | 939 | |
dcc101d1 | 940 | perf_session__mmap_read(top.session); |
2f01190a | 941 | |
c0443df1 | 942 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
dcc101d1 | 943 | display_thread), NULL)) { |
07800601 IM |
944 | printf("Could not create display thread.\n"); |
945 | exit(-1); | |
946 | } | |
947 | ||
948 | if (realtime_prio) { | |
949 | struct sched_param param; | |
950 | ||
951 | param.sched_priority = realtime_prio; | |
952 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { | |
953 | printf("Could not set realtime priority.\n"); | |
954 | exit(-1); | |
955 | } | |
956 | } | |
957 | ||
958 | while (1) { | |
8c3e10eb | 959 | u64 hits = top.samples; |
07800601 | 960 | |
dcc101d1 | 961 | perf_session__mmap_read(top.session); |
07800601 | 962 | |
8c3e10eb ACM |
963 | if (hits == top.samples) |
964 | ret = poll(top.evlist->pollfd, top.evlist->nr_fds, 100); | |
07800601 IM |
965 | } |
966 | ||
19d4ac3c ACM |
967 | out_delete: |
968 | perf_session__delete(top.session); | |
969 | top.session = NULL; | |
970 | ||
971 | return 0; | |
972 | } | |
973 | ||
974 | static int | |
975 | parse_callchain_opt(const struct option *opt __used, const char *arg, | |
976 | int unset) | |
977 | { | |
978 | char *tok, *tok2; | |
979 | char *endptr; | |
980 | ||
981 | /* | |
982 | * --no-call-graph | |
983 | */ | |
984 | if (unset) { | |
985 | dont_use_callchains = true; | |
986 | return 0; | |
987 | } | |
988 | ||
989 | symbol_conf.use_callchain = true; | |
990 | ||
991 | if (!arg) | |
992 | return 0; | |
993 | ||
994 | tok = strtok((char *)arg, ","); | |
995 | if (!tok) | |
996 | return -1; | |
997 | ||
998 | /* get the output mode */ | |
999 | if (!strncmp(tok, "graph", strlen(arg))) | |
1000 | callchain_param.mode = CHAIN_GRAPH_ABS; | |
1001 | ||
1002 | else if (!strncmp(tok, "flat", strlen(arg))) | |
1003 | callchain_param.mode = CHAIN_FLAT; | |
1004 | ||
1005 | else if (!strncmp(tok, "fractal", strlen(arg))) | |
1006 | callchain_param.mode = CHAIN_GRAPH_REL; | |
1007 | ||
1008 | else if (!strncmp(tok, "none", strlen(arg))) { | |
1009 | callchain_param.mode = CHAIN_NONE; | |
1010 | symbol_conf.use_callchain = false; | |
1011 | ||
1012 | return 0; | |
1013 | } | |
1014 | ||
1015 | else | |
1016 | return -1; | |
1017 | ||
1018 | /* get the min percentage */ | |
1019 | tok = strtok(NULL, ","); | |
1020 | if (!tok) | |
1021 | goto setup; | |
1022 | ||
1023 | callchain_param.min_percent = strtod(tok, &endptr); | |
1024 | if (tok == endptr) | |
1025 | return -1; | |
1026 | ||
1027 | /* get the print limit */ | |
1028 | tok2 = strtok(NULL, ","); | |
1029 | if (!tok2) | |
1030 | goto setup; | |
1031 | ||
1032 | if (tok2[0] != 'c') { | |
1033 | callchain_param.print_limit = strtod(tok2, &endptr); | |
1034 | tok2 = strtok(NULL, ","); | |
1035 | if (!tok2) | |
1036 | goto setup; | |
1037 | } | |
1038 | ||
1039 | /* get the call chain order */ | |
1040 | if (!strcmp(tok2, "caller")) | |
1041 | callchain_param.order = ORDER_CALLER; | |
1042 | else if (!strcmp(tok2, "callee")) | |
1043 | callchain_param.order = ORDER_CALLEE; | |
1044 | else | |
1045 | return -1; | |
1046 | setup: | |
1047 | if (callchain_register_param(&callchain_param) < 0) { | |
1048 | fprintf(stderr, "Can't register callchain params\n"); | |
1049 | return -1; | |
1050 | } | |
07800601 IM |
1051 | return 0; |
1052 | } | |
b456bae0 IM |
1053 | |
1054 | static const char * const top_usage[] = { | |
1055 | "perf top [<options>]", | |
1056 | NULL | |
1057 | }; | |
1058 | ||
b456bae0 | 1059 | static const struct option options[] = { |
8c3e10eb | 1060 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1061 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1062 | parse_events_option), |
b456bae0 IM |
1063 | OPT_INTEGER('c', "count", &default_interval, |
1064 | "event period to sample"), | |
8c3e10eb | 1065 | OPT_INTEGER('p', "pid", &top.target_pid, |
d6d901c2 | 1066 | "profile events on existing process id"), |
8c3e10eb | 1067 | OPT_INTEGER('t', "tid", &top.target_tid, |
d6d901c2 | 1068 | "profile events on existing thread id"), |
b456bae0 IM |
1069 | OPT_BOOLEAN('a', "all-cpus", &system_wide, |
1070 | "system-wide collection from all CPUs"), | |
8c3e10eb | 1071 | OPT_STRING('C', "cpu", &top.cpu_list, "cpu", |
c45c6ea2 | 1072 | "list of cpus to monitor"), |
b32d133a ACM |
1073 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1074 | "file", "vmlinux pathname"), | |
8c3e10eb | 1075 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1076 | "hide kernel symbols"), |
1967936d | 1077 | OPT_UINTEGER('m', "mmap-pages", &mmap_pages, "number of mmap data pages"), |
b456bae0 IM |
1078 | OPT_INTEGER('r', "realtime", &realtime_prio, |
1079 | "collect data with this RT SCHED_FIFO priority"), | |
8c3e10eb | 1080 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 IM |
1081 | "number of seconds to delay between refreshes"), |
1082 | OPT_BOOLEAN('D', "dump-symtab", &dump_symtab, | |
1083 | "dump the symbol table used for profiling"), | |
8c3e10eb | 1084 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 IM |
1085 | "only display functions with more events than this"), |
1086 | OPT_BOOLEAN('g', "group", &group, | |
1087 | "put the counters into a counter group"), | |
0fdc7e67 MG |
1088 | OPT_BOOLEAN('i', "inherit", &inherit, |
1089 | "child tasks inherit counters"), | |
ab81f3fd | 1090 | OPT_STRING(0, "sym-annotate", &sym_filter, "symbol name", |
6cff0e8d | 1091 | "symbol to annotate"), |
8c3e10eb | 1092 | OPT_BOOLEAN('z', "zero", &top.zero, |
b456bae0 | 1093 | "zero history across updates"), |
8c3e10eb | 1094 | OPT_INTEGER('F', "freq", &top.freq, |
b456bae0 | 1095 | "profile at this frequency"), |
8c3e10eb | 1096 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1097 | "display this many functions"), |
8c3e10eb | 1098 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1099 | "hide user symbols"), |
c0443df1 ACM |
1100 | OPT_BOOLEAN(0, "tui", &use_tui, "Use the TUI interface"), |
1101 | OPT_BOOLEAN(0, "stdio", &use_stdio, "Use the stdio interface"), | |
c0555642 | 1102 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1103 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd ACM |
1104 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
1105 | "sort by key(s): pid, comm, dso, symbol, parent"), | |
1106 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, | |
1107 | "Show a column with the number of samples"), | |
19d4ac3c ACM |
1108 | OPT_CALLBACK_DEFAULT('G', "call-graph", NULL, "output_type,min_percent, call_order", |
1109 | "Display callchains using output_type (graph, flat, fractal, or none), min percent threshold and callchain order. " | |
1110 | "Default: fractal,0.5,callee", &parse_callchain_opt, | |
1111 | callchain_default_opt), | |
ab81f3fd ACM |
1112 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1113 | "Show a column with the sum of periods"), | |
1114 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1115 | "only consider symbols in these dsos"), | |
1116 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1117 | "only consider symbols in these comms"), | |
1118 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1119 | "only consider these symbols"), | |
b456bae0 IM |
1120 | OPT_END() |
1121 | }; | |
1122 | ||
f37a291c | 1123 | int cmd_top(int argc, const char **argv, const char *prefix __used) |
b456bae0 | 1124 | { |
69aad6f1 ACM |
1125 | struct perf_evsel *pos; |
1126 | int status = -ENOMEM; | |
b456bae0 | 1127 | |
8c3e10eb ACM |
1128 | top.evlist = perf_evlist__new(NULL, NULL); |
1129 | if (top.evlist == NULL) | |
361c99a6 ACM |
1130 | return -ENOMEM; |
1131 | ||
ab81f3fd | 1132 | symbol_conf.exclude_other = false; |
b456bae0 | 1133 | |
b456bae0 IM |
1134 | argc = parse_options(argc, argv, options, top_usage, 0); |
1135 | if (argc) | |
1136 | usage_with_options(top_usage, options); | |
1137 | ||
ab81f3fd ACM |
1138 | if (sort_order == default_sort_order) |
1139 | sort_order = "dso,symbol"; | |
1140 | ||
1141 | setup_sorting(top_usage, options); | |
1142 | ||
c0443df1 ACM |
1143 | if (use_stdio) |
1144 | use_browser = 0; | |
1145 | else if (use_tui) | |
1146 | use_browser = 1; | |
1147 | ||
1148 | setup_browser(false); | |
1149 | ||
b456bae0 | 1150 | /* CPU and PID are mutually exclusive */ |
8c3e10eb | 1151 | if (top.target_tid > 0 && top.cpu_list) { |
b456bae0 IM |
1152 | printf("WARNING: PID switch overriding CPU\n"); |
1153 | sleep(1); | |
8c3e10eb | 1154 | top.cpu_list = NULL; |
b456bae0 IM |
1155 | } |
1156 | ||
8c3e10eb ACM |
1157 | if (top.target_pid != -1) |
1158 | top.target_tid = top.target_pid; | |
7e2ed097 | 1159 | |
8c3e10eb ACM |
1160 | if (perf_evlist__create_maps(top.evlist, top.target_pid, |
1161 | top.target_tid, top.cpu_list) < 0) | |
7e2ed097 ACM |
1162 | usage_with_options(top_usage, options); |
1163 | ||
8c3e10eb ACM |
1164 | if (!top.evlist->nr_entries && |
1165 | perf_evlist__add_default(top.evlist) < 0) { | |
69aad6f1 ACM |
1166 | pr_err("Not enough memory for event selector list\n"); |
1167 | return -ENOMEM; | |
1168 | } | |
5a8e5a30 | 1169 | |
8c3e10eb ACM |
1170 | if (top.delay_secs < 1) |
1171 | top.delay_secs = 1; | |
2f335a02 | 1172 | |
7e4ff9e3 MG |
1173 | /* |
1174 | * User specified count overrides default frequency. | |
1175 | */ | |
1176 | if (default_interval) | |
8c3e10eb ACM |
1177 | top.freq = 0; |
1178 | else if (top.freq) { | |
1179 | default_interval = top.freq; | |
7e4ff9e3 MG |
1180 | } else { |
1181 | fprintf(stderr, "frequency and count are zero, aborting\n"); | |
1182 | exit(EXIT_FAILURE); | |
1183 | } | |
1184 | ||
8c3e10eb ACM |
1185 | list_for_each_entry(pos, &top.evlist->entries, node) { |
1186 | if (perf_evsel__alloc_fd(pos, top.evlist->cpus->nr, | |
1187 | top.evlist->threads->nr) < 0) | |
69aad6f1 ACM |
1188 | goto out_free_fd; |
1189 | /* | |
1190 | * Fill in the ones not specifically initialized via -c: | |
1191 | */ | |
1192 | if (pos->attr.sample_period) | |
1193 | continue; | |
1194 | ||
1195 | pos->attr.sample_period = default_interval; | |
1196 | } | |
1197 | ||
8c3e10eb ACM |
1198 | if (perf_evlist__alloc_pollfd(top.evlist) < 0 || |
1199 | perf_evlist__alloc_mmap(top.evlist) < 0) | |
5c581041 ACM |
1200 | goto out_free_fd; |
1201 | ||
8c3e10eb | 1202 | top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); |
cc841580 | 1203 | |
ab81f3fd | 1204 | symbol_conf.priv_size = sizeof(struct annotation); |
69aad6f1 ACM |
1205 | |
1206 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); | |
1207 | if (symbol__init() < 0) | |
1208 | return -1; | |
1209 | ||
ab81f3fd ACM |
1210 | sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", stdout); |
1211 | sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout); | |
1212 | sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout); | |
1213 | ||
19d4ac3c ACM |
1214 | /* |
1215 | * Avoid annotation data structures overhead when symbols aren't on the | |
1216 | * sort list. | |
1217 | */ | |
1218 | sort_has_symbols = sort_sym.list.next != NULL; | |
1219 | ||
13cc5079 | 1220 | get_term_dimensions(&winsize); |
8c3e10eb | 1221 | if (top.print_entries == 0) { |
13cc5079 | 1222 | update_print_entries(&winsize); |
3b6ed988 ACM |
1223 | signal(SIGWINCH, sig_winch_handler); |
1224 | } | |
1225 | ||
69aad6f1 ACM |
1226 | status = __cmd_top(); |
1227 | out_free_fd: | |
8c3e10eb | 1228 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1229 | |
1230 | return status; | |
b456bae0 | 1231 | } |