186470930SIngo Molnar /* 286470930SIngo Molnar * builtin-top.c 386470930SIngo Molnar * 486470930SIngo Molnar * Builtin top command: Display a continuously updated profile of 586470930SIngo Molnar * any workload, CPU or specific PID. 686470930SIngo Molnar * 786470930SIngo Molnar * Copyright (C) 2008, Red Hat Inc, Ingo Molnar <mingo@redhat.com> 8ab81f3fdSArnaldo Carvalho de Melo * 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> 986470930SIngo Molnar * 1086470930SIngo Molnar * Improvements and fixes by: 1186470930SIngo Molnar * 1286470930SIngo Molnar * Arjan van de Ven <arjan@linux.intel.com> 1386470930SIngo Molnar * Yanmin Zhang <yanmin.zhang@intel.com> 1486470930SIngo Molnar * Wu Fengguang <fengguang.wu@intel.com> 1586470930SIngo Molnar * Mike Galbraith <efault@gmx.de> 1686470930SIngo Molnar * Paul Mackerras <paulus@samba.org> 1786470930SIngo Molnar * 1886470930SIngo Molnar * Released under the GPL v2. (and only v2, not any later version) 1986470930SIngo Molnar */ 2086470930SIngo Molnar #include "builtin.h" 2186470930SIngo Molnar 2286470930SIngo Molnar #include "perf.h" 2386470930SIngo Molnar 2436532461SArnaldo Carvalho de Melo #include "util/annotate.h" 25c0443df1SArnaldo Carvalho de Melo #include "util/cache.h" 2686470930SIngo Molnar #include "util/color.h" 27361c99a6SArnaldo Carvalho de Melo #include "util/evlist.h" 2869aad6f1SArnaldo Carvalho de Melo #include "util/evsel.h" 29b3165f41SArnaldo Carvalho de Melo #include "util/session.h" 30b3165f41SArnaldo Carvalho de Melo #include "util/symbol.h" 31439d473bSArnaldo Carvalho de Melo #include "util/thread.h" 32fd78260bSArnaldo Carvalho de Melo #include "util/thread_map.h" 338c3e10ebSArnaldo Carvalho de Melo #include "util/top.h" 3486470930SIngo Molnar #include "util/util.h" 3543cbcd8aSArnaldo Carvalho de Melo #include <linux/rbtree.h> 3686470930SIngo Molnar #include "util/parse-options.h" 3786470930SIngo Molnar #include "util/parse-events.h" 38a12b51c4SPaul Mackerras #include "util/cpumap.h" 3969aad6f1SArnaldo Carvalho de Melo #include "util/xyarray.h" 40ab81f3fdSArnaldo Carvalho de Melo #include "util/sort.h" 4186470930SIngo Molnar 428f28827aSFrederic Weisbecker #include "util/debug.h" 438f28827aSFrederic Weisbecker 4486470930SIngo Molnar #include <assert.h> 4586470930SIngo Molnar #include <fcntl.h> 4686470930SIngo Molnar 4786470930SIngo Molnar #include <stdio.h> 48923c42c1SMike Galbraith #include <termios.h> 49923c42c1SMike Galbraith #include <unistd.h> 509486aa38SArnaldo Carvalho de Melo #include <inttypes.h> 5186470930SIngo Molnar 5286470930SIngo Molnar #include <errno.h> 5386470930SIngo Molnar #include <time.h> 5486470930SIngo Molnar #include <sched.h> 5586470930SIngo Molnar 5686470930SIngo Molnar #include <sys/syscall.h> 5786470930SIngo Molnar #include <sys/ioctl.h> 5886470930SIngo Molnar #include <sys/poll.h> 5986470930SIngo Molnar #include <sys/prctl.h> 6086470930SIngo Molnar #include <sys/wait.h> 6186470930SIngo Molnar #include <sys/uio.h> 6286470930SIngo Molnar #include <sys/mman.h> 6386470930SIngo Molnar 6486470930SIngo Molnar #include <linux/unistd.h> 6586470930SIngo Molnar #include <linux/types.h> 6686470930SIngo Molnar 67923c42c1SMike Galbraith 68895f0edcSArnaldo Carvalho de Melo void get_term_dimensions(struct winsize *ws) 693b6ed988SArnaldo Carvalho de Melo { 7013cc5079SArnaldo Carvalho de Melo char *s = getenv("LINES"); 713b6ed988SArnaldo Carvalho de Melo 7213cc5079SArnaldo Carvalho de Melo if (s != NULL) { 7313cc5079SArnaldo Carvalho de Melo ws->ws_row = atoi(s); 7413cc5079SArnaldo Carvalho de Melo s = getenv("COLUMNS"); 7513cc5079SArnaldo Carvalho de Melo if (s != NULL) { 7613cc5079SArnaldo Carvalho de Melo ws->ws_col = atoi(s); 7713cc5079SArnaldo Carvalho de Melo if (ws->ws_row && ws->ws_col) 7813cc5079SArnaldo Carvalho de Melo return; 7913cc5079SArnaldo Carvalho de Melo } 8013cc5079SArnaldo Carvalho de Melo } 813b6ed988SArnaldo Carvalho de Melo #ifdef TIOCGWINSZ 8213cc5079SArnaldo Carvalho de Melo if (ioctl(1, TIOCGWINSZ, ws) == 0 && 8313cc5079SArnaldo Carvalho de Melo ws->ws_row && ws->ws_col) 8413cc5079SArnaldo Carvalho de Melo return; 853b6ed988SArnaldo Carvalho de Melo #endif 8613cc5079SArnaldo Carvalho de Melo ws->ws_row = 25; 8713cc5079SArnaldo Carvalho de Melo ws->ws_col = 80; 883b6ed988SArnaldo Carvalho de Melo } 893b6ed988SArnaldo Carvalho de Melo 901758af10SArnaldo Carvalho de Melo static void perf_top__update_print_entries(struct perf_top *top) 913b6ed988SArnaldo Carvalho de Melo { 921758af10SArnaldo Carvalho de Melo top->print_entries = top->winsize.ws_row; 9313cc5079SArnaldo Carvalho de Melo 941758af10SArnaldo Carvalho de Melo if (top->print_entries > 9) 951758af10SArnaldo Carvalho de Melo top->print_entries -= 9; 963b6ed988SArnaldo Carvalho de Melo } 973b6ed988SArnaldo Carvalho de Melo 981758af10SArnaldo Carvalho de Melo static void perf_top__sig_winch(int sig __used, siginfo_t *info __used, void *arg) 993b6ed988SArnaldo Carvalho de Melo { 1001758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 1011758af10SArnaldo Carvalho de Melo 1021758af10SArnaldo Carvalho de Melo get_term_dimensions(&top->winsize); 1031758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(top); 1043b6ed988SArnaldo Carvalho de Melo } 1053b6ed988SArnaldo Carvalho de Melo 1061758af10SArnaldo Carvalho de Melo static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) 107923c42c1SMike Galbraith { 108923c42c1SMike Galbraith struct symbol *sym; 109ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 110439d473bSArnaldo Carvalho de Melo struct map *map; 11136532461SArnaldo Carvalho de Melo int err = -1; 112923c42c1SMike Galbraith 113ab81f3fdSArnaldo Carvalho de Melo if (!he || !he->ms.sym) 114b0a9ab62SArnaldo Carvalho de Melo return -1; 115b0a9ab62SArnaldo Carvalho de Melo 116ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 117ab81f3fdSArnaldo Carvalho de Melo map = he->ms.map; 118b0a9ab62SArnaldo Carvalho de Melo 119b0a9ab62SArnaldo Carvalho de Melo /* 120b0a9ab62SArnaldo Carvalho de Melo * We can't annotate with just /proc/kallsyms 121b0a9ab62SArnaldo Carvalho de Melo */ 122878b439dSArnaldo Carvalho de Melo if (map->dso->symtab_type == SYMTAB__KALLSYMS) { 123ce6f4fabSArnaldo Carvalho de Melo pr_err("Can't annotate %s: No vmlinux file was found in the " 124ce6f4fabSArnaldo Carvalho de Melo "path\n", sym->name); 125ce6f4fabSArnaldo Carvalho de Melo sleep(1); 126b0a9ab62SArnaldo Carvalho de Melo return -1; 127b269876cSArnaldo Carvalho de Melo } 128b269876cSArnaldo Carvalho de Melo 129ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 130ce6f4fabSArnaldo Carvalho de Melo if (notes->src != NULL) { 131ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 132923c42c1SMike Galbraith goto out_assign; 133923c42c1SMike Galbraith } 134923c42c1SMike Galbraith 135ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 136923c42c1SMike Galbraith 137d04b35f8SArnaldo Carvalho de Melo if (symbol__alloc_hist(sym) < 0) { 138c97cf422SArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 13936532461SArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 14036532461SArnaldo Carvalho de Melo sym->name); 141ce6f4fabSArnaldo Carvalho de Melo sleep(1); 142c97cf422SArnaldo Carvalho de Melo return err; 143923c42c1SMike Galbraith } 14436532461SArnaldo Carvalho de Melo 145ab81f3fdSArnaldo Carvalho de Melo err = symbol__annotate(sym, map, 0); 14636532461SArnaldo Carvalho de Melo if (err == 0) { 147923c42c1SMike Galbraith out_assign: 1481758af10SArnaldo Carvalho de Melo top->sym_filter_entry = he; 14936532461SArnaldo Carvalho de Melo } 150c97cf422SArnaldo Carvalho de Melo 151ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 15236532461SArnaldo Carvalho de Melo return err; 153923c42c1SMike Galbraith } 154923c42c1SMike Galbraith 155ab81f3fdSArnaldo Carvalho de Melo static void __zero_source_counters(struct hist_entry *he) 156923c42c1SMike Galbraith { 157ab81f3fdSArnaldo Carvalho de Melo struct symbol *sym = he->ms.sym; 15836532461SArnaldo Carvalho de Melo symbol__annotate_zero_histograms(sym); 159923c42c1SMike Galbraith } 160923c42c1SMike Galbraith 1611758af10SArnaldo Carvalho de Melo static void perf_top__record_precise_ip(struct perf_top *top, 1621758af10SArnaldo Carvalho de Melo struct hist_entry *he, 1631758af10SArnaldo Carvalho de Melo int counter, u64 ip) 164923c42c1SMike Galbraith { 165ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 166ce6f4fabSArnaldo Carvalho de Melo struct symbol *sym; 167ce6f4fabSArnaldo Carvalho de Melo 168ab81f3fdSArnaldo Carvalho de Melo if (he == NULL || he->ms.sym == NULL || 1691758af10SArnaldo Carvalho de Melo ((top->sym_filter_entry == NULL || 1701758af10SArnaldo Carvalho de Melo top->sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1)) 171923c42c1SMike Galbraith return; 172923c42c1SMike Galbraith 173ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 174ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 175ce6f4fabSArnaldo Carvalho de Melo 176ce6f4fabSArnaldo Carvalho de Melo if (pthread_mutex_trylock(¬es->lock)) 177923c42c1SMike Galbraith return; 178923c42c1SMike Galbraith 179d04b35f8SArnaldo Carvalho de Melo if (notes->src == NULL && symbol__alloc_hist(sym) < 0) { 180ab81f3fdSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 181ab81f3fdSArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 182ab81f3fdSArnaldo Carvalho de Melo sym->name); 183ab81f3fdSArnaldo Carvalho de Melo sleep(1); 184ab81f3fdSArnaldo Carvalho de Melo return; 185ab81f3fdSArnaldo Carvalho de Melo } 186ab81f3fdSArnaldo Carvalho de Melo 187ab81f3fdSArnaldo Carvalho de Melo ip = he->ms.map->map_ip(he->ms.map, ip); 188ab81f3fdSArnaldo Carvalho de Melo symbol__inc_addr_samples(sym, he->ms.map, counter, ip); 189923c42c1SMike Galbraith 190ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 191923c42c1SMike Galbraith } 192923c42c1SMike Galbraith 1931758af10SArnaldo Carvalho de Melo static void perf_top__show_details(struct perf_top *top) 194923c42c1SMike Galbraith { 1951758af10SArnaldo Carvalho de Melo struct hist_entry *he = top->sym_filter_entry; 196ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 197923c42c1SMike Galbraith struct symbol *symbol; 19836532461SArnaldo Carvalho de Melo int more; 199923c42c1SMike Galbraith 200ab81f3fdSArnaldo Carvalho de Melo if (!he) 201923c42c1SMike Galbraith return; 202923c42c1SMike Galbraith 203ab81f3fdSArnaldo Carvalho de Melo symbol = he->ms.sym; 204ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(symbol); 205ce6f4fabSArnaldo Carvalho de Melo 206ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 207ce6f4fabSArnaldo Carvalho de Melo 208ce6f4fabSArnaldo Carvalho de Melo if (notes->src == NULL) 209ce6f4fabSArnaldo Carvalho de Melo goto out_unlock; 210923c42c1SMike Galbraith 2111758af10SArnaldo Carvalho de Melo printf("Showing %s for %s\n", event_name(top->sym_evsel), symbol->name); 2121758af10SArnaldo Carvalho de Melo printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); 213923c42c1SMike Galbraith 2141758af10SArnaldo Carvalho de Melo more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel->idx, 2151758af10SArnaldo Carvalho de Melo 0, top->sym_pcnt_filter, top->print_entries, 4); 2161758af10SArnaldo Carvalho de Melo if (top->zero) 2171758af10SArnaldo Carvalho de Melo symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); 21836532461SArnaldo Carvalho de Melo else 2191758af10SArnaldo Carvalho de Melo symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); 22036532461SArnaldo Carvalho de Melo if (more != 0) 221923c42c1SMike Galbraith printf("%d lines not displayed, maybe increase display entries [e]\n", more); 222ce6f4fabSArnaldo Carvalho de Melo out_unlock: 223ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 224923c42c1SMike Galbraith } 22586470930SIngo Molnar 22686470930SIngo Molnar static const char CONSOLE_CLEAR[] = "[H[2J"; 22786470930SIngo Molnar 228743eb868SArnaldo Carvalho de Melo static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel, 229ab81f3fdSArnaldo Carvalho de Melo struct addr_location *al, 230743eb868SArnaldo Carvalho de Melo struct perf_sample *sample) 23186470930SIngo Molnar { 232ab81f3fdSArnaldo Carvalho de Melo struct hist_entry *he; 233ab81f3fdSArnaldo Carvalho de Melo 234ab81f3fdSArnaldo Carvalho de Melo he = __hists__add_entry(&evsel->hists, al, NULL, sample->period); 235ab81f3fdSArnaldo Carvalho de Melo if (he == NULL) 236ab81f3fdSArnaldo Carvalho de Melo return NULL; 237ab81f3fdSArnaldo Carvalho de Melo 238ab81f3fdSArnaldo Carvalho de Melo hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); 239ab81f3fdSArnaldo Carvalho de Melo return he; 24086470930SIngo Molnar } 24186470930SIngo Molnar 2421758af10SArnaldo Carvalho de Melo static void perf_top__print_sym_table(struct perf_top *top) 24386470930SIngo Molnar { 2448c3e10ebSArnaldo Carvalho de Melo char bf[160]; 2458c3e10ebSArnaldo Carvalho de Melo int printed = 0; 2461758af10SArnaldo Carvalho de Melo const int win_width = top->winsize.ws_col - 1; 24786470930SIngo Molnar 24886470930SIngo Molnar puts(CONSOLE_CLEAR); 24986470930SIngo Molnar 2501758af10SArnaldo Carvalho de Melo perf_top__header_snprintf(top, bf, sizeof(bf)); 2518c3e10ebSArnaldo Carvalho de Melo printf("%s\n", bf); 25286470930SIngo Molnar 2531758af10SArnaldo Carvalho de Melo perf_top__reset_sample_counters(top); 25486470930SIngo Molnar 2551a105f74SArnaldo Carvalho de Melo printf("%-*.*s\n", win_width, win_width, graph_dotted_line); 25686470930SIngo Molnar 2571758af10SArnaldo Carvalho de Melo if (top->sym_evsel->hists.stats.nr_lost_warned != 2581758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) { 2591758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_lost_warned = 2601758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]; 2617b27509fSArnaldo Carvalho de Melo color_fprintf(stdout, PERF_COLOR_RED, 2627b27509fSArnaldo Carvalho de Melo "WARNING: LOST %d chunks, Check IO/CPU overload", 2631758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_lost_warned); 264ab81f3fdSArnaldo Carvalho de Melo ++printed; 26593fc64f1SArnaldo Carvalho de Melo } 26693fc64f1SArnaldo Carvalho de Melo 2671758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 2681758af10SArnaldo Carvalho de Melo perf_top__show_details(top); 269923c42c1SMike Galbraith return; 270923c42c1SMike Galbraith } 271923c42c1SMike Galbraith 2721758af10SArnaldo Carvalho de Melo hists__collapse_resort_threaded(&top->sym_evsel->hists); 2731758af10SArnaldo Carvalho de Melo hists__output_resort_threaded(&top->sym_evsel->hists); 2741758af10SArnaldo Carvalho de Melo hists__decay_entries_threaded(&top->sym_evsel->hists, 2751758af10SArnaldo Carvalho de Melo top->hide_user_symbols, 2761758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols); 2771758af10SArnaldo Carvalho de Melo hists__output_recalc_col_len(&top->sym_evsel->hists, 2781758af10SArnaldo Carvalho de Melo top->winsize.ws_row - 3); 2791a105f74SArnaldo Carvalho de Melo putchar('\n'); 2801758af10SArnaldo Carvalho de Melo hists__fprintf(&top->sym_evsel->hists, NULL, false, false, 2811758af10SArnaldo Carvalho de Melo top->winsize.ws_row - 4 - printed, win_width, stdout); 28286470930SIngo Molnar } 28386470930SIngo Molnar 284923c42c1SMike Galbraith static void prompt_integer(int *target, const char *msg) 285923c42c1SMike Galbraith { 286923c42c1SMike Galbraith char *buf = malloc(0), *p; 287923c42c1SMike Galbraith size_t dummy = 0; 288923c42c1SMike Galbraith int tmp; 289923c42c1SMike Galbraith 290923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 291923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 292923c42c1SMike Galbraith return; 293923c42c1SMike Galbraith 294923c42c1SMike Galbraith p = strchr(buf, '\n'); 295923c42c1SMike Galbraith if (p) 296923c42c1SMike Galbraith *p = 0; 297923c42c1SMike Galbraith 298923c42c1SMike Galbraith p = buf; 299923c42c1SMike Galbraith while(*p) { 300923c42c1SMike Galbraith if (!isdigit(*p)) 301923c42c1SMike Galbraith goto out_free; 302923c42c1SMike Galbraith p++; 303923c42c1SMike Galbraith } 304923c42c1SMike Galbraith tmp = strtoul(buf, NULL, 10); 305923c42c1SMike Galbraith *target = tmp; 306923c42c1SMike Galbraith out_free: 307923c42c1SMike Galbraith free(buf); 308923c42c1SMike Galbraith } 309923c42c1SMike Galbraith 310923c42c1SMike Galbraith static void prompt_percent(int *target, const char *msg) 311923c42c1SMike Galbraith { 312923c42c1SMike Galbraith int tmp = 0; 313923c42c1SMike Galbraith 314923c42c1SMike Galbraith prompt_integer(&tmp, msg); 315923c42c1SMike Galbraith if (tmp >= 0 && tmp <= 100) 316923c42c1SMike Galbraith *target = tmp; 317923c42c1SMike Galbraith } 318923c42c1SMike Galbraith 3191758af10SArnaldo Carvalho de Melo static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) 320923c42c1SMike Galbraith { 321923c42c1SMike Galbraith char *buf = malloc(0), *p; 3221758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; 323ab81f3fdSArnaldo Carvalho de Melo struct rb_node *next; 324923c42c1SMike Galbraith size_t dummy = 0; 325923c42c1SMike Galbraith 326923c42c1SMike Galbraith /* zero counters of active symbol */ 327923c42c1SMike Galbraith if (syme) { 328923c42c1SMike Galbraith __zero_source_counters(syme); 3291758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 330923c42c1SMike Galbraith } 331923c42c1SMike Galbraith 332923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 333923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 334923c42c1SMike Galbraith goto out_free; 335923c42c1SMike Galbraith 336923c42c1SMike Galbraith p = strchr(buf, '\n'); 337923c42c1SMike Galbraith if (p) 338923c42c1SMike Galbraith *p = 0; 339923c42c1SMike Galbraith 3401758af10SArnaldo Carvalho de Melo next = rb_first(&top->sym_evsel->hists.entries); 341ab81f3fdSArnaldo Carvalho de Melo while (next) { 342ab81f3fdSArnaldo Carvalho de Melo n = rb_entry(next, struct hist_entry, rb_node); 343ab81f3fdSArnaldo Carvalho de Melo if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { 344ab81f3fdSArnaldo Carvalho de Melo found = n; 345923c42c1SMike Galbraith break; 346923c42c1SMike Galbraith } 347ab81f3fdSArnaldo Carvalho de Melo next = rb_next(&n->rb_node); 348923c42c1SMike Galbraith } 349923c42c1SMike Galbraith 350923c42c1SMike Galbraith if (!found) { 35166aeb6d5SKirill Smelkov fprintf(stderr, "Sorry, %s is not active.\n", buf); 352923c42c1SMike Galbraith sleep(1); 353923c42c1SMike Galbraith } else 3541758af10SArnaldo Carvalho de Melo perf_top__parse_source(top, found); 355923c42c1SMike Galbraith 356923c42c1SMike Galbraith out_free: 357923c42c1SMike Galbraith free(buf); 358923c42c1SMike Galbraith } 359923c42c1SMike Galbraith 3601758af10SArnaldo Carvalho de Melo static void perf_top__print_mapped_keys(struct perf_top *top) 361923c42c1SMike Galbraith { 362091bd2e9SMike Galbraith char *name = NULL; 363091bd2e9SMike Galbraith 3641758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 3651758af10SArnaldo Carvalho de Melo struct symbol *sym = top->sym_filter_entry->ms.sym; 366091bd2e9SMike Galbraith name = sym->name; 367091bd2e9SMike Galbraith } 368091bd2e9SMike Galbraith 369091bd2e9SMike Galbraith fprintf(stdout, "\nMapped keys:\n"); 3701758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); 3711758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); 372091bd2e9SMike Galbraith 3731758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) 3741758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[E] active event counter. \t(%s)\n", event_name(top->sym_evsel)); 375091bd2e9SMike Galbraith 3761758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); 377091bd2e9SMike Galbraith 3781758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); 379091bd2e9SMike Galbraith fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); 380091bd2e9SMike Galbraith fprintf(stdout, "\t[S] stop annotation.\n"); 381091bd2e9SMike Galbraith 3828ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 3838ffcda17SArnaldo Carvalho de Melo "\t[K] hide kernel_symbols symbols. \t(%s)\n", 3841758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols ? "yes" : "no"); 3858ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 3868ffcda17SArnaldo Carvalho de Melo "\t[U] hide user symbols. \t(%s)\n", 3871758af10SArnaldo Carvalho de Melo top->hide_user_symbols ? "yes" : "no"); 3881758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); 389091bd2e9SMike Galbraith fprintf(stdout, "\t[qQ] quit.\n"); 390091bd2e9SMike Galbraith } 391091bd2e9SMike Galbraith 3921758af10SArnaldo Carvalho de Melo static int perf_top__key_mapped(struct perf_top *top, int c) 393091bd2e9SMike Galbraith { 394091bd2e9SMike Galbraith switch (c) { 395091bd2e9SMike Galbraith case 'd': 396091bd2e9SMike Galbraith case 'e': 397091bd2e9SMike Galbraith case 'f': 398091bd2e9SMike Galbraith case 'z': 399091bd2e9SMike Galbraith case 'q': 400091bd2e9SMike Galbraith case 'Q': 4018ffcda17SArnaldo Carvalho de Melo case 'K': 4028ffcda17SArnaldo Carvalho de Melo case 'U': 4036cff0e8dSKirill Smelkov case 'F': 4046cff0e8dSKirill Smelkov case 's': 4056cff0e8dSKirill Smelkov case 'S': 406091bd2e9SMike Galbraith return 1; 407091bd2e9SMike Galbraith case 'E': 4081758af10SArnaldo Carvalho de Melo return top->evlist->nr_entries > 1 ? 1 : 0; 40983a0944fSIngo Molnar default: 41083a0944fSIngo Molnar break; 411091bd2e9SMike Galbraith } 412091bd2e9SMike Galbraith 413091bd2e9SMike Galbraith return 0; 414923c42c1SMike Galbraith } 415923c42c1SMike Galbraith 4161758af10SArnaldo Carvalho de Melo static void perf_top__handle_keypress(struct perf_top *top, int c) 417923c42c1SMike Galbraith { 4181758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) { 419091bd2e9SMike Galbraith struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 420091bd2e9SMike Galbraith struct termios tc, save; 421091bd2e9SMike Galbraith 4221758af10SArnaldo Carvalho de Melo perf_top__print_mapped_keys(top); 423091bd2e9SMike Galbraith fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); 424091bd2e9SMike Galbraith fflush(stdout); 425091bd2e9SMike Galbraith 426091bd2e9SMike Galbraith tcgetattr(0, &save); 427091bd2e9SMike Galbraith tc = save; 428091bd2e9SMike Galbraith tc.c_lflag &= ~(ICANON | ECHO); 429091bd2e9SMike Galbraith tc.c_cc[VMIN] = 0; 430091bd2e9SMike Galbraith tc.c_cc[VTIME] = 0; 431091bd2e9SMike Galbraith tcsetattr(0, TCSANOW, &tc); 432091bd2e9SMike Galbraith 433091bd2e9SMike Galbraith poll(&stdin_poll, 1, -1); 434091bd2e9SMike Galbraith c = getc(stdin); 435091bd2e9SMike Galbraith 436091bd2e9SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 4371758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) 438091bd2e9SMike Galbraith return; 439091bd2e9SMike Galbraith } 440091bd2e9SMike Galbraith 441923c42c1SMike Galbraith switch (c) { 442923c42c1SMike Galbraith case 'd': 4431758af10SArnaldo Carvalho de Melo prompt_integer(&top->delay_secs, "Enter display delay"); 4441758af10SArnaldo Carvalho de Melo if (top->delay_secs < 1) 4451758af10SArnaldo Carvalho de Melo top->delay_secs = 1; 446923c42c1SMike Galbraith break; 447923c42c1SMike Galbraith case 'e': 4481758af10SArnaldo Carvalho de Melo prompt_integer(&top->print_entries, "Enter display entries (lines)"); 4491758af10SArnaldo Carvalho de Melo if (top->print_entries == 0) { 4501758af10SArnaldo Carvalho de Melo struct sigaction act = { 4511758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 4521758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 4531758af10SArnaldo Carvalho de Melo }; 4541758af10SArnaldo Carvalho de Melo perf_top__sig_winch(SIGWINCH, NULL, top); 4551758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 4563b6ed988SArnaldo Carvalho de Melo } else 4573b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, SIG_DFL); 458923c42c1SMike Galbraith break; 459923c42c1SMike Galbraith case 'E': 4601758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) { 461ce2d17caSAkihiro Nagai /* Select 0 as the default event: */ 462ce2d17caSAkihiro Nagai int counter = 0; 463ce2d17caSAkihiro Nagai 464923c42c1SMike Galbraith fprintf(stderr, "\nAvailable events:"); 46569aad6f1SArnaldo Carvalho de Melo 4661758af10SArnaldo Carvalho de Melo list_for_each_entry(top->sym_evsel, &top->evlist->entries, node) 4671758af10SArnaldo Carvalho de Melo fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, event_name(top->sym_evsel)); 468923c42c1SMike Galbraith 469ec52d976SArnaldo Carvalho de Melo prompt_integer(&counter, "Enter details event counter"); 470923c42c1SMike Galbraith 4711758af10SArnaldo Carvalho de Melo if (counter >= top->evlist->nr_entries) { 4721758af10SArnaldo Carvalho de Melo top->sym_evsel = list_entry(top->evlist->entries.next, struct perf_evsel, node); 4731758af10SArnaldo Carvalho de Melo fprintf(stderr, "Sorry, no such event, using %s.\n", event_name(top->sym_evsel)); 474923c42c1SMike Galbraith sleep(1); 47569aad6f1SArnaldo Carvalho de Melo break; 476923c42c1SMike Galbraith } 4771758af10SArnaldo Carvalho de Melo list_for_each_entry(top->sym_evsel, &top->evlist->entries, node) 4781758af10SArnaldo Carvalho de Melo if (top->sym_evsel->idx == counter) 47969aad6f1SArnaldo Carvalho de Melo break; 480ec52d976SArnaldo Carvalho de Melo } else 4811758af10SArnaldo Carvalho de Melo top->sym_evsel = list_entry(top->evlist->entries.next, struct perf_evsel, node); 482923c42c1SMike Galbraith break; 483923c42c1SMike Galbraith case 'f': 4841758af10SArnaldo Carvalho de Melo prompt_integer(&top->count_filter, "Enter display event count filter"); 485923c42c1SMike Galbraith break; 486923c42c1SMike Galbraith case 'F': 4871758af10SArnaldo Carvalho de Melo prompt_percent(&top->sym_pcnt_filter, 4881758af10SArnaldo Carvalho de Melo "Enter details display event filter (percent)"); 489923c42c1SMike Galbraith break; 4908ffcda17SArnaldo Carvalho de Melo case 'K': 4911758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols = !top->hide_kernel_symbols; 4928ffcda17SArnaldo Carvalho de Melo break; 493923c42c1SMike Galbraith case 'q': 494923c42c1SMike Galbraith case 'Q': 495923c42c1SMike Galbraith printf("exiting.\n"); 4961758af10SArnaldo Carvalho de Melo if (top->dump_symtab) 4971758af10SArnaldo Carvalho de Melo perf_session__fprintf_dsos(top->session, stderr); 498923c42c1SMike Galbraith exit(0); 499923c42c1SMike Galbraith case 's': 5001758af10SArnaldo Carvalho de Melo perf_top__prompt_symbol(top, "Enter details symbol"); 501923c42c1SMike Galbraith break; 502923c42c1SMike Galbraith case 'S': 5031758af10SArnaldo Carvalho de Melo if (!top->sym_filter_entry) 504923c42c1SMike Galbraith break; 505923c42c1SMike Galbraith else { 5061758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry; 507923c42c1SMike Galbraith 5081758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 509923c42c1SMike Galbraith __zero_source_counters(syme); 510923c42c1SMike Galbraith } 511923c42c1SMike Galbraith break; 5128ffcda17SArnaldo Carvalho de Melo case 'U': 5131758af10SArnaldo Carvalho de Melo top->hide_user_symbols = !top->hide_user_symbols; 5148ffcda17SArnaldo Carvalho de Melo break; 515923c42c1SMike Galbraith case 'z': 5161758af10SArnaldo Carvalho de Melo top->zero = !top->zero; 517923c42c1SMike Galbraith break; 51883a0944fSIngo Molnar default: 51983a0944fSIngo Molnar break; 520923c42c1SMike Galbraith } 521923c42c1SMike Galbraith } 522923c42c1SMike Galbraith 523ab81f3fdSArnaldo Carvalho de Melo static void perf_top__sort_new_samples(void *arg) 524ab81f3fdSArnaldo Carvalho de Melo { 525ab81f3fdSArnaldo Carvalho de Melo struct perf_top *t = arg; 526ab81f3fdSArnaldo Carvalho de Melo perf_top__reset_sample_counters(t); 527ab81f3fdSArnaldo Carvalho de Melo 528ab81f3fdSArnaldo Carvalho de Melo if (t->evlist->selected != NULL) 529ab81f3fdSArnaldo Carvalho de Melo t->sym_evsel = t->evlist->selected; 530ab81f3fdSArnaldo Carvalho de Melo 531ab81f3fdSArnaldo Carvalho de Melo hists__collapse_resort_threaded(&t->sym_evsel->hists); 532ab81f3fdSArnaldo Carvalho de Melo hists__output_resort_threaded(&t->sym_evsel->hists); 533b079d4e9SArnaldo Carvalho de Melo hists__decay_entries_threaded(&t->sym_evsel->hists, 5341758af10SArnaldo Carvalho de Melo t->hide_user_symbols, 5351758af10SArnaldo Carvalho de Melo t->hide_kernel_symbols); 536ab81f3fdSArnaldo Carvalho de Melo } 537ab81f3fdSArnaldo Carvalho de Melo 5381758af10SArnaldo Carvalho de Melo static void *display_thread_tui(void *arg) 539c0443df1SArnaldo Carvalho de Melo { 5401758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 541ab81f3fdSArnaldo Carvalho de Melo const char *help = "For a higher level overview, try: perf top --sort comm,dso"; 542ab81f3fdSArnaldo Carvalho de Melo 5431758af10SArnaldo Carvalho de Melo perf_top__sort_new_samples(top); 5441758af10SArnaldo Carvalho de Melo perf_evlist__tui_browse_hists(top->evlist, help, 545ab81f3fdSArnaldo Carvalho de Melo perf_top__sort_new_samples, 5461758af10SArnaldo Carvalho de Melo top, top->delay_secs); 547ab81f3fdSArnaldo Carvalho de Melo 548c0443df1SArnaldo Carvalho de Melo exit_browser(0); 549c0443df1SArnaldo Carvalho de Melo exit(0); 550c0443df1SArnaldo Carvalho de Melo return NULL; 551c0443df1SArnaldo Carvalho de Melo } 552c0443df1SArnaldo Carvalho de Melo 5531758af10SArnaldo Carvalho de Melo static void *display_thread(void *arg) 55486470930SIngo Molnar { 55586470930SIngo Molnar struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 556923c42c1SMike Galbraith struct termios tc, save; 5571758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 558923c42c1SMike Galbraith int delay_msecs, c; 55986470930SIngo Molnar 560923c42c1SMike Galbraith tcgetattr(0, &save); 561923c42c1SMike Galbraith tc = save; 562923c42c1SMike Galbraith tc.c_lflag &= ~(ICANON | ECHO); 563923c42c1SMike Galbraith tc.c_cc[VMIN] = 0; 564923c42c1SMike Galbraith tc.c_cc[VTIME] = 0; 565091bd2e9SMike Galbraith 5663af6e338SArnaldo Carvalho de Melo pthread__unblock_sigwinch(); 567923c42c1SMike Galbraith repeat: 5681758af10SArnaldo Carvalho de Melo delay_msecs = top->delay_secs * 1000; 569923c42c1SMike Galbraith tcsetattr(0, TCSANOW, &tc); 570923c42c1SMike Galbraith /* trash return*/ 571923c42c1SMike Galbraith getc(stdin); 57286470930SIngo Molnar 5733af6e338SArnaldo Carvalho de Melo while (1) { 5741758af10SArnaldo Carvalho de Melo perf_top__print_sym_table(top); 5753af6e338SArnaldo Carvalho de Melo /* 5763af6e338SArnaldo Carvalho de Melo * Either timeout expired or we got an EINTR due to SIGWINCH, 5773af6e338SArnaldo Carvalho de Melo * refresh screen in both cases. 5783af6e338SArnaldo Carvalho de Melo */ 5793af6e338SArnaldo Carvalho de Melo switch (poll(&stdin_poll, 1, delay_msecs)) { 5803af6e338SArnaldo Carvalho de Melo case 0: 5813af6e338SArnaldo Carvalho de Melo continue; 5823af6e338SArnaldo Carvalho de Melo case -1: 5833af6e338SArnaldo Carvalho de Melo if (errno == EINTR) 5843af6e338SArnaldo Carvalho de Melo continue; 5853af6e338SArnaldo Carvalho de Melo /* Fall trhu */ 5863af6e338SArnaldo Carvalho de Melo default: 5873af6e338SArnaldo Carvalho de Melo goto process_hotkey; 5883af6e338SArnaldo Carvalho de Melo } 5893af6e338SArnaldo Carvalho de Melo } 5903af6e338SArnaldo Carvalho de Melo process_hotkey: 591923c42c1SMike Galbraith c = getc(stdin); 592923c42c1SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 593923c42c1SMike Galbraith 5941758af10SArnaldo Carvalho de Melo perf_top__handle_keypress(top, c); 595923c42c1SMike Galbraith goto repeat; 59686470930SIngo Molnar 59786470930SIngo Molnar return NULL; 59886470930SIngo Molnar } 59986470930SIngo Molnar 6002ab52083SAnton Blanchard /* Tag samples to be skipped. */ 601f37a291cSIngo Molnar static const char *skip_symbols[] = { 6022ab52083SAnton Blanchard "default_idle", 603b0e8572fSArnaldo Carvalho de Melo "native_safe_halt", 6042ab52083SAnton Blanchard "cpu_idle", 6052ab52083SAnton Blanchard "enter_idle", 6062ab52083SAnton Blanchard "exit_idle", 6072ab52083SAnton Blanchard "mwait_idle", 60859b90056SArnaldo Carvalho de Melo "mwait_idle_with_hints", 6098357275bSArnaldo Carvalho de Melo "poll_idle", 6103a3393efSAnton Blanchard "ppc64_runlatch_off", 6113a3393efSAnton Blanchard "pseries_dedicated_idle_sleep", 6122ab52083SAnton Blanchard NULL 6132ab52083SAnton Blanchard }; 6142ab52083SAnton Blanchard 615ab81f3fdSArnaldo Carvalho de Melo static int symbol_filter(struct map *map __used, struct symbol *sym) 61686470930SIngo Molnar { 61786470930SIngo Molnar const char *name = sym->name; 6182ab52083SAnton Blanchard int i; 61986470930SIngo Molnar 6203a3393efSAnton Blanchard /* 6213a3393efSAnton Blanchard * ppc64 uses function descriptors and appends a '.' to the 6223a3393efSAnton Blanchard * start of every instruction address. Remove it. 6233a3393efSAnton Blanchard */ 6243a3393efSAnton Blanchard if (name[0] == '.') 6253a3393efSAnton Blanchard name++; 6263a3393efSAnton Blanchard 62786470930SIngo Molnar if (!strcmp(name, "_text") || 62886470930SIngo Molnar !strcmp(name, "_etext") || 62986470930SIngo Molnar !strcmp(name, "_sinittext") || 63086470930SIngo Molnar !strncmp("init_module", name, 11) || 63186470930SIngo Molnar !strncmp("cleanup_module", name, 14) || 63286470930SIngo Molnar strstr(name, "_text_start") || 63386470930SIngo Molnar strstr(name, "_text_end")) 63486470930SIngo Molnar return 1; 63586470930SIngo Molnar 6362ab52083SAnton Blanchard for (i = 0; skip_symbols[i]; i++) { 6372ab52083SAnton Blanchard if (!strcmp(skip_symbols[i], name)) { 638171b3be9SArnaldo Carvalho de Melo sym->ignore = true; 6392ab52083SAnton Blanchard break; 6402ab52083SAnton Blanchard } 6412ab52083SAnton Blanchard } 64286470930SIngo Molnar 64386470930SIngo Molnar return 0; 64486470930SIngo Molnar } 64586470930SIngo Molnar 6461758af10SArnaldo Carvalho de Melo static void perf_event__process_sample(struct perf_tool *tool, 6471758af10SArnaldo Carvalho de Melo const union perf_event *event, 6487b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel, 6498d50e5b4SArnaldo Carvalho de Melo struct perf_sample *sample, 650743eb868SArnaldo Carvalho de Melo struct machine *machine) 65186470930SIngo Molnar { 6521758af10SArnaldo Carvalho de Melo struct perf_top *top = container_of(tool, struct perf_top, tool); 65319d4ac3cSArnaldo Carvalho de Melo struct symbol *parent = NULL; 6548115d60cSArnaldo Carvalho de Melo u64 ip = event->ip.ip; 6551ed091c4SArnaldo Carvalho de Melo struct addr_location al; 65619d4ac3cSArnaldo Carvalho de Melo int err; 6575b2bb75aSArnaldo Carvalho de Melo 65823346f21SArnaldo Carvalho de Melo if (!machine && perf_guest) { 659a1645ce1SZhang, Yanmin pr_err("Can't find guest [%d]'s kernel information\n", 6608115d60cSArnaldo Carvalho de Melo event->ip.pid); 661a1645ce1SZhang, Yanmin return; 662a1645ce1SZhang, Yanmin } 663a1645ce1SZhang, Yanmin 6648115d60cSArnaldo Carvalho de Melo if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) 6651758af10SArnaldo Carvalho de Melo top->exact_samples++; 6661676b8a0SPeter Zijlstra 667743eb868SArnaldo Carvalho de Melo if (perf_event__preprocess_sample(event, machine, &al, sample, 66841a37e20SArnaldo Carvalho de Melo symbol_filter) < 0 || 66972b8fa17SArnaldo Carvalho de Melo al.filtered) 6701ed091c4SArnaldo Carvalho de Melo return; 67186470930SIngo Molnar 6721758af10SArnaldo Carvalho de Melo if (!top->kptr_restrict_warned && 6735f6f5580SArnaldo Carvalho de Melo symbol_conf.kptr_restrict && 6745f6f5580SArnaldo Carvalho de Melo al.cpumode == PERF_RECORD_MISC_KERNEL) { 6755f6f5580SArnaldo Carvalho de Melo ui__warning( 6765f6f5580SArnaldo Carvalho de Melo "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" 6775f6f5580SArnaldo Carvalho de Melo "Check /proc/sys/kernel/kptr_restrict.\n\n" 6785f6f5580SArnaldo Carvalho de Melo "Kernel%s samples will not be resolved.\n", 6795f6f5580SArnaldo Carvalho de Melo !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? 6805f6f5580SArnaldo Carvalho de Melo " modules" : ""); 6815f6f5580SArnaldo Carvalho de Melo if (use_browser <= 0) 6825f6f5580SArnaldo Carvalho de Melo sleep(5); 6831758af10SArnaldo Carvalho de Melo top->kptr_restrict_warned = true; 6845f6f5580SArnaldo Carvalho de Melo } 6855f6f5580SArnaldo Carvalho de Melo 68672b8fa17SArnaldo Carvalho de Melo if (al.sym == NULL) { 687e4a338d0SArnaldo Carvalho de Melo const char *msg = "Kernel samples will not be resolved.\n"; 68872b8fa17SArnaldo Carvalho de Melo /* 68972b8fa17SArnaldo Carvalho de Melo * As we do lazy loading of symtabs we only will know if the 69072b8fa17SArnaldo Carvalho de Melo * specified vmlinux file is invalid when we actually have a 69172b8fa17SArnaldo Carvalho de Melo * hit in kernel space and then try to load it. So if we get 69272b8fa17SArnaldo Carvalho de Melo * here and there are _no_ symbols in the DSO backing the 69372b8fa17SArnaldo Carvalho de Melo * kernel map, bail out. 69472b8fa17SArnaldo Carvalho de Melo * 69572b8fa17SArnaldo Carvalho de Melo * We may never get here, for instance, if we use -K/ 69672b8fa17SArnaldo Carvalho de Melo * --hide-kernel-symbols, even if the user specifies an 69772b8fa17SArnaldo Carvalho de Melo * invalid --vmlinux ;-) 69872b8fa17SArnaldo Carvalho de Melo */ 6991758af10SArnaldo Carvalho de Melo if (!top->kptr_restrict_warned && !top->vmlinux_warned && 700e4a338d0SArnaldo Carvalho de Melo al.map == machine->vmlinux_maps[MAP__FUNCTION] && 70172b8fa17SArnaldo Carvalho de Melo RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { 702e4a338d0SArnaldo Carvalho de Melo if (symbol_conf.vmlinux_name) { 703e4a338d0SArnaldo Carvalho de Melo ui__warning("The %s file can't be used.\n%s", 704e4a338d0SArnaldo Carvalho de Melo symbol_conf.vmlinux_name, msg); 705e4a338d0SArnaldo Carvalho de Melo } else { 706e4a338d0SArnaldo Carvalho de Melo ui__warning("A vmlinux file was not found.\n%s", 707e4a338d0SArnaldo Carvalho de Melo msg); 708e4a338d0SArnaldo Carvalho de Melo } 709e4a338d0SArnaldo Carvalho de Melo 710e4a338d0SArnaldo Carvalho de Melo if (use_browser <= 0) 711e4a338d0SArnaldo Carvalho de Melo sleep(5); 7121758af10SArnaldo Carvalho de Melo top->vmlinux_warned = true; 71372b8fa17SArnaldo Carvalho de Melo } 71472b8fa17SArnaldo Carvalho de Melo } 71572b8fa17SArnaldo Carvalho de Melo 716ab81f3fdSArnaldo Carvalho de Melo if (al.sym == NULL || !al.sym->ignore) { 717ab81f3fdSArnaldo Carvalho de Melo struct hist_entry *he; 71870db7533SArnaldo Carvalho de Melo 71919d4ac3cSArnaldo Carvalho de Melo if ((sort__has_parent || symbol_conf.use_callchain) && 72019d4ac3cSArnaldo Carvalho de Melo sample->callchain) { 721743eb868SArnaldo Carvalho de Melo err = machine__resolve_callchain(machine, evsel, al.thread, 72219d4ac3cSArnaldo Carvalho de Melo sample->callchain, &parent); 72319d4ac3cSArnaldo Carvalho de Melo if (err) 72419d4ac3cSArnaldo Carvalho de Melo return; 72519d4ac3cSArnaldo Carvalho de Melo } 72619d4ac3cSArnaldo Carvalho de Melo 727743eb868SArnaldo Carvalho de Melo he = perf_evsel__add_hist_entry(evsel, &al, sample); 728ab81f3fdSArnaldo Carvalho de Melo if (he == NULL) { 729ab81f3fdSArnaldo Carvalho de Melo pr_err("Problem incrementing symbol period, skipping event\n"); 730ab81f3fdSArnaldo Carvalho de Melo return; 7315807806aSArnaldo Carvalho de Melo } 732ab81f3fdSArnaldo Carvalho de Melo 73319d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) { 734246d4ce8SArnaldo Carvalho de Melo err = callchain_append(he->callchain, &evsel->hists.callchain_cursor, 73519d4ac3cSArnaldo Carvalho de Melo sample->period); 73619d4ac3cSArnaldo Carvalho de Melo if (err) 73719d4ac3cSArnaldo Carvalho de Melo return; 73819d4ac3cSArnaldo Carvalho de Melo } 73919d4ac3cSArnaldo Carvalho de Melo 7401758af10SArnaldo Carvalho de Melo if (top->sort_has_symbols) 7411758af10SArnaldo Carvalho de Melo perf_top__record_precise_ip(top, he, evsel->idx, ip); 7425807806aSArnaldo Carvalho de Melo } 743ab81f3fdSArnaldo Carvalho de Melo 744ab81f3fdSArnaldo Carvalho de Melo return; 74586470930SIngo Molnar } 74686470930SIngo Molnar 7471758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read_idx(struct perf_top *top, int idx) 74886470930SIngo Molnar { 7498d50e5b4SArnaldo Carvalho de Melo struct perf_sample sample; 7507b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel; 7511758af10SArnaldo Carvalho de Melo struct perf_session *session = top->session; 7528115d60cSArnaldo Carvalho de Melo union perf_event *event; 753743eb868SArnaldo Carvalho de Melo struct machine *machine; 754743eb868SArnaldo Carvalho de Melo u8 origin; 7555538becaSFrederic Weisbecker int ret; 75686470930SIngo Molnar 7571758af10SArnaldo Carvalho de Melo while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { 7581758af10SArnaldo Carvalho de Melo ret = perf_session__parse_sample(session, event, &sample); 7595538becaSFrederic Weisbecker if (ret) { 7605538becaSFrederic Weisbecker pr_err("Can't parse sample, err = %d\n", ret); 7615538becaSFrederic Weisbecker continue; 7625538becaSFrederic Weisbecker } 76304391debSArnaldo Carvalho de Melo 7641758af10SArnaldo Carvalho de Melo evsel = perf_evlist__id2evsel(session->evlist, sample.id); 7657b27509fSArnaldo Carvalho de Melo assert(evsel != NULL); 7667b27509fSArnaldo Carvalho de Melo 767743eb868SArnaldo Carvalho de Melo origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 768743eb868SArnaldo Carvalho de Melo 7695b2bb75aSArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) 7701758af10SArnaldo Carvalho de Melo ++top->samples; 771743eb868SArnaldo Carvalho de Melo 772743eb868SArnaldo Carvalho de Melo switch (origin) { 773743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_USER: 7741758af10SArnaldo Carvalho de Melo ++top->us_samples; 7751758af10SArnaldo Carvalho de Melo if (top->hide_user_symbols) 776743eb868SArnaldo Carvalho de Melo continue; 7771758af10SArnaldo Carvalho de Melo machine = perf_session__find_host_machine(session); 778743eb868SArnaldo Carvalho de Melo break; 779743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_KERNEL: 7801758af10SArnaldo Carvalho de Melo ++top->kernel_samples; 7811758af10SArnaldo Carvalho de Melo if (top->hide_kernel_symbols) 782743eb868SArnaldo Carvalho de Melo continue; 7831758af10SArnaldo Carvalho de Melo machine = perf_session__find_host_machine(session); 784743eb868SArnaldo Carvalho de Melo break; 785743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_KERNEL: 7861758af10SArnaldo Carvalho de Melo ++top->guest_kernel_samples; 7871758af10SArnaldo Carvalho de Melo machine = perf_session__find_machine(session, event->ip.pid); 788743eb868SArnaldo Carvalho de Melo break; 789743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_USER: 7901758af10SArnaldo Carvalho de Melo ++top->guest_us_samples; 791743eb868SArnaldo Carvalho de Melo /* 792743eb868SArnaldo Carvalho de Melo * TODO: we don't process guest user from host side 793743eb868SArnaldo Carvalho de Melo * except simple counting. 794743eb868SArnaldo Carvalho de Melo */ 795743eb868SArnaldo Carvalho de Melo /* Fall thru */ 796743eb868SArnaldo Carvalho de Melo default: 797743eb868SArnaldo Carvalho de Melo continue; 798743eb868SArnaldo Carvalho de Melo } 799743eb868SArnaldo Carvalho de Melo 800743eb868SArnaldo Carvalho de Melo 8011758af10SArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) { 8021758af10SArnaldo Carvalho de Melo perf_event__process_sample(&top->tool, event, evsel, 8031758af10SArnaldo Carvalho de Melo &sample, machine); 8041758af10SArnaldo Carvalho de Melo } else if (event->header.type < PERF_RECORD_MAX) { 8057b27509fSArnaldo Carvalho de Melo hists__inc_nr_events(&evsel->hists, event->header.type); 8061758af10SArnaldo Carvalho de Melo perf_event__process(&top->tool, event, &sample, machine); 8077b27509fSArnaldo Carvalho de Melo } else 8081758af10SArnaldo Carvalho de Melo ++session->hists.stats.nr_unknown_events; 80986470930SIngo Molnar } 81086470930SIngo Molnar } 81186470930SIngo Molnar 8121758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read(struct perf_top *top) 8132f01190aSFrederic Weisbecker { 81470db7533SArnaldo Carvalho de Melo int i; 8152f01190aSFrederic Weisbecker 8161758af10SArnaldo Carvalho de Melo for (i = 0; i < top->evlist->nr_mmaps; i++) 8171758af10SArnaldo Carvalho de Melo perf_top__mmap_read_idx(top, i); 8182f01190aSFrederic Weisbecker } 8192f01190aSFrederic Weisbecker 8201758af10SArnaldo Carvalho de Melo static void perf_top__start_counters(struct perf_top *top) 82172cb7013SArnaldo Carvalho de Melo { 822727ab04eSArnaldo Carvalho de Melo struct perf_evsel *counter, *first; 8231758af10SArnaldo Carvalho de Melo struct perf_evlist *evlist = top->evlist; 824727ab04eSArnaldo Carvalho de Melo 825727ab04eSArnaldo Carvalho de Melo first = list_entry(evlist->entries.next, struct perf_evsel, node); 82672cb7013SArnaldo Carvalho de Melo 82772cb7013SArnaldo Carvalho de Melo list_for_each_entry(counter, &evlist->entries, node) { 82872cb7013SArnaldo Carvalho de Melo struct perf_event_attr *attr = &counter->attr; 829727ab04eSArnaldo Carvalho de Melo struct xyarray *group_fd = NULL; 830727ab04eSArnaldo Carvalho de Melo 8311758af10SArnaldo Carvalho de Melo if (top->group && counter != first) 832727ab04eSArnaldo Carvalho de Melo group_fd = first->fd; 83372cb7013SArnaldo Carvalho de Melo 83472cb7013SArnaldo Carvalho de Melo attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID; 83572cb7013SArnaldo Carvalho de Melo 8361758af10SArnaldo Carvalho de Melo if (top->freq) { 83772cb7013SArnaldo Carvalho de Melo attr->sample_type |= PERF_SAMPLE_PERIOD; 83872cb7013SArnaldo Carvalho de Melo attr->freq = 1; 8391758af10SArnaldo Carvalho de Melo attr->sample_freq = top->freq; 84072cb7013SArnaldo Carvalho de Melo } 84172cb7013SArnaldo Carvalho de Melo 84270db7533SArnaldo Carvalho de Melo if (evlist->nr_entries > 1) { 84370db7533SArnaldo Carvalho de Melo attr->sample_type |= PERF_SAMPLE_ID; 84470db7533SArnaldo Carvalho de Melo attr->read_format |= PERF_FORMAT_ID; 84570db7533SArnaldo Carvalho de Melo } 84670db7533SArnaldo Carvalho de Melo 84719d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) 84819d4ac3cSArnaldo Carvalho de Melo attr->sample_type |= PERF_SAMPLE_CALLCHAIN; 84919d4ac3cSArnaldo Carvalho de Melo 85072cb7013SArnaldo Carvalho de Melo attr->mmap = 1; 851ab81f3fdSArnaldo Carvalho de Melo attr->comm = 1; 8521758af10SArnaldo Carvalho de Melo attr->inherit = top->inherit; 8537b27509fSArnaldo Carvalho de Melo retry_sample_id: 8541758af10SArnaldo Carvalho de Melo attr->sample_id_all = top->sample_id_all_avail ? 1 : 0; 85572cb7013SArnaldo Carvalho de Melo try_again: 8561758af10SArnaldo Carvalho de Melo if (perf_evsel__open(counter, top->evlist->cpus, 8571758af10SArnaldo Carvalho de Melo top->evlist->threads, top->group, 858727ab04eSArnaldo Carvalho de Melo group_fd) < 0) { 85972cb7013SArnaldo Carvalho de Melo int err = errno; 86072cb7013SArnaldo Carvalho de Melo 861c286c419SArnaldo Carvalho de Melo if (err == EPERM || err == EACCES) { 862b8631e6eSArnaldo Carvalho de Melo ui__error_paranoid(); 863c286c419SArnaldo Carvalho de Melo goto out_err; 8641758af10SArnaldo Carvalho de Melo } else if (err == EINVAL && top->sample_id_all_avail) { 8657b27509fSArnaldo Carvalho de Melo /* 8667b27509fSArnaldo Carvalho de Melo * Old kernel, no attr->sample_id_type_all field 8677b27509fSArnaldo Carvalho de Melo */ 8681758af10SArnaldo Carvalho de Melo top->sample_id_all_avail = false; 8697b27509fSArnaldo Carvalho de Melo goto retry_sample_id; 870c286c419SArnaldo Carvalho de Melo } 87172cb7013SArnaldo Carvalho de Melo /* 87272cb7013SArnaldo Carvalho de Melo * If it's cycles then fall back to hrtimer 87372cb7013SArnaldo Carvalho de Melo * based cpu-clock-tick sw counter, which 87472cb7013SArnaldo Carvalho de Melo * is always available even if no PMU support: 87572cb7013SArnaldo Carvalho de Melo */ 87672cb7013SArnaldo Carvalho de Melo if (attr->type == PERF_TYPE_HARDWARE && 87772cb7013SArnaldo Carvalho de Melo attr->config == PERF_COUNT_HW_CPU_CYCLES) { 87872cb7013SArnaldo Carvalho de Melo if (verbose) 879c286c419SArnaldo Carvalho de Melo ui__warning("Cycles event not supported,\n" 880c286c419SArnaldo Carvalho de Melo "trying to fall back to cpu-clock-ticks\n"); 88172cb7013SArnaldo Carvalho de Melo 88272cb7013SArnaldo Carvalho de Melo attr->type = PERF_TYPE_SOFTWARE; 88372cb7013SArnaldo Carvalho de Melo attr->config = PERF_COUNT_SW_CPU_CLOCK; 88472cb7013SArnaldo Carvalho de Melo goto try_again; 88572cb7013SArnaldo Carvalho de Melo } 886c286c419SArnaldo Carvalho de Melo 887ca6a4258SDavid Ahern if (err == ENOENT) { 888ca6a4258SDavid Ahern ui__warning("The %s event is not supported.\n", 889ca6a4258SDavid Ahern event_name(counter)); 890ca6a4258SDavid Ahern goto out_err; 891cdce4459SNamhyung Kim } else if (err == EMFILE) { 892cdce4459SNamhyung Kim ui__warning("Too many events are opened.\n" 893cdce4459SNamhyung Kim "Try again after reducing the number of events\n"); 894cdce4459SNamhyung Kim goto out_err; 895ca6a4258SDavid Ahern } 896ca6a4258SDavid Ahern 897c286c419SArnaldo Carvalho de Melo ui__warning("The sys_perf_event_open() syscall " 898c286c419SArnaldo Carvalho de Melo "returned with %d (%s). /bin/dmesg " 899c286c419SArnaldo Carvalho de Melo "may provide additional information.\n" 900c286c419SArnaldo Carvalho de Melo "No CONFIG_PERF_EVENTS=y kernel support " 901c286c419SArnaldo Carvalho de Melo "configured?\n", err, strerror(err)); 902c286c419SArnaldo Carvalho de Melo goto out_err; 90372cb7013SArnaldo Carvalho de Melo } 90472cb7013SArnaldo Carvalho de Melo } 90570db7533SArnaldo Carvalho de Melo 9061758af10SArnaldo Carvalho de Melo if (perf_evlist__mmap(evlist, top->mmap_pages, false) < 0) { 907c286c419SArnaldo Carvalho de Melo ui__warning("Failed to mmap with %d (%s)\n", 908c286c419SArnaldo Carvalho de Melo errno, strerror(errno)); 909c286c419SArnaldo Carvalho de Melo goto out_err; 910c286c419SArnaldo Carvalho de Melo } 911c286c419SArnaldo Carvalho de Melo 912c286c419SArnaldo Carvalho de Melo return; 913c286c419SArnaldo Carvalho de Melo 914c286c419SArnaldo Carvalho de Melo out_err: 915c286c419SArnaldo Carvalho de Melo exit_browser(0); 916c286c419SArnaldo Carvalho de Melo exit(0); 91772cb7013SArnaldo Carvalho de Melo } 91872cb7013SArnaldo Carvalho de Melo 9191758af10SArnaldo Carvalho de Melo static int perf_top__setup_sample_type(struct perf_top *top) 92019d4ac3cSArnaldo Carvalho de Melo { 9211758af10SArnaldo Carvalho de Melo if (!top->sort_has_symbols) { 92219d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) { 92319d4ac3cSArnaldo Carvalho de Melo ui__warning("Selected -g but \"sym\" not present in --sort/-s."); 92419d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 92519d4ac3cSArnaldo Carvalho de Melo } 9261758af10SArnaldo Carvalho de Melo } else if (!top->dont_use_callchains && callchain_param.mode != CHAIN_NONE) { 92719d4ac3cSArnaldo Carvalho de Melo if (callchain_register_param(&callchain_param) < 0) { 92819d4ac3cSArnaldo Carvalho de Melo ui__warning("Can't register callchain params.\n"); 92919d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 93019d4ac3cSArnaldo Carvalho de Melo } 93119d4ac3cSArnaldo Carvalho de Melo } 93219d4ac3cSArnaldo Carvalho de Melo 93319d4ac3cSArnaldo Carvalho de Melo return 0; 93419d4ac3cSArnaldo Carvalho de Melo } 93519d4ac3cSArnaldo Carvalho de Melo 9361758af10SArnaldo Carvalho de Melo static int __cmd_top(struct perf_top *top) 937716c69feSIngo Molnar { 938716c69feSIngo Molnar pthread_t thread; 93919d4ac3cSArnaldo Carvalho de Melo int ret; 940d8f66248SArnaldo Carvalho de Melo /* 941b3165f41SArnaldo Carvalho de Melo * FIXME: perf_session__new should allow passing a O_MMAP, so that all this 942b3165f41SArnaldo Carvalho de Melo * mmap reading, etc is encapsulated in it. Use O_WRONLY for now. 943d8f66248SArnaldo Carvalho de Melo */ 9441758af10SArnaldo Carvalho de Melo top->session = perf_session__new(NULL, O_WRONLY, false, false, NULL); 9451758af10SArnaldo Carvalho de Melo if (top->session == NULL) 946b3165f41SArnaldo Carvalho de Melo return -ENOMEM; 947716c69feSIngo Molnar 9481758af10SArnaldo Carvalho de Melo ret = perf_top__setup_sample_type(top); 94919d4ac3cSArnaldo Carvalho de Melo if (ret) 95019d4ac3cSArnaldo Carvalho de Melo goto out_delete; 95119d4ac3cSArnaldo Carvalho de Melo 9521758af10SArnaldo Carvalho de Melo if (top->target_tid != -1) 9531758af10SArnaldo Carvalho de Melo perf_event__synthesize_thread_map(&top->tool, top->evlist->threads, 954743eb868SArnaldo Carvalho de Melo perf_event__process, 9551758af10SArnaldo Carvalho de Melo &top->session->host_machine); 9565b2bb75aSArnaldo Carvalho de Melo else 9571758af10SArnaldo Carvalho de Melo perf_event__synthesize_threads(&top->tool, perf_event__process, 9581758af10SArnaldo Carvalho de Melo &top->session->host_machine); 9591758af10SArnaldo Carvalho de Melo perf_top__start_counters(top); 9601758af10SArnaldo Carvalho de Melo top->session->evlist = top->evlist; 9611758af10SArnaldo Carvalho de Melo perf_session__update_sample_type(top->session); 96286470930SIngo Molnar 9632f01190aSFrederic Weisbecker /* Wait for a minimal set of events before starting the snapshot */ 9641758af10SArnaldo Carvalho de Melo poll(top->evlist->pollfd, top->evlist->nr_fds, 100); 9652f01190aSFrederic Weisbecker 9661758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 9672f01190aSFrederic Weisbecker 968c0443df1SArnaldo Carvalho de Melo if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : 9691758af10SArnaldo Carvalho de Melo display_thread), top)) { 97086470930SIngo Molnar printf("Could not create display thread.\n"); 97186470930SIngo Molnar exit(-1); 97286470930SIngo Molnar } 97386470930SIngo Molnar 9741758af10SArnaldo Carvalho de Melo if (top->realtime_prio) { 97586470930SIngo Molnar struct sched_param param; 97686470930SIngo Molnar 9771758af10SArnaldo Carvalho de Melo param.sched_priority = top->realtime_prio; 97886470930SIngo Molnar if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { 97986470930SIngo Molnar printf("Could not set realtime priority.\n"); 98086470930SIngo Molnar exit(-1); 98186470930SIngo Molnar } 98286470930SIngo Molnar } 98386470930SIngo Molnar 98486470930SIngo Molnar while (1) { 9851758af10SArnaldo Carvalho de Melo u64 hits = top->samples; 98686470930SIngo Molnar 9871758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 98886470930SIngo Molnar 9891758af10SArnaldo Carvalho de Melo if (hits == top->samples) 9901758af10SArnaldo Carvalho de Melo ret = poll(top->evlist->pollfd, top->evlist->nr_fds, 100); 99186470930SIngo Molnar } 99286470930SIngo Molnar 99319d4ac3cSArnaldo Carvalho de Melo out_delete: 9941758af10SArnaldo Carvalho de Melo perf_session__delete(top->session); 9951758af10SArnaldo Carvalho de Melo top->session = NULL; 99619d4ac3cSArnaldo Carvalho de Melo 99719d4ac3cSArnaldo Carvalho de Melo return 0; 99819d4ac3cSArnaldo Carvalho de Melo } 99919d4ac3cSArnaldo Carvalho de Melo 100019d4ac3cSArnaldo Carvalho de Melo static int 10011758af10SArnaldo Carvalho de Melo parse_callchain_opt(const struct option *opt, const char *arg, int unset) 100219d4ac3cSArnaldo Carvalho de Melo { 10031758af10SArnaldo Carvalho de Melo struct perf_top *top = (struct perf_top *)opt->value; 100419d4ac3cSArnaldo Carvalho de Melo char *tok, *tok2; 100519d4ac3cSArnaldo Carvalho de Melo char *endptr; 100619d4ac3cSArnaldo Carvalho de Melo 100719d4ac3cSArnaldo Carvalho de Melo /* 100819d4ac3cSArnaldo Carvalho de Melo * --no-call-graph 100919d4ac3cSArnaldo Carvalho de Melo */ 101019d4ac3cSArnaldo Carvalho de Melo if (unset) { 10111758af10SArnaldo Carvalho de Melo top->dont_use_callchains = true; 101219d4ac3cSArnaldo Carvalho de Melo return 0; 101319d4ac3cSArnaldo Carvalho de Melo } 101419d4ac3cSArnaldo Carvalho de Melo 101519d4ac3cSArnaldo Carvalho de Melo symbol_conf.use_callchain = true; 101619d4ac3cSArnaldo Carvalho de Melo 101719d4ac3cSArnaldo Carvalho de Melo if (!arg) 101819d4ac3cSArnaldo Carvalho de Melo return 0; 101919d4ac3cSArnaldo Carvalho de Melo 102019d4ac3cSArnaldo Carvalho de Melo tok = strtok((char *)arg, ","); 102119d4ac3cSArnaldo Carvalho de Melo if (!tok) 102219d4ac3cSArnaldo Carvalho de Melo return -1; 102319d4ac3cSArnaldo Carvalho de Melo 102419d4ac3cSArnaldo Carvalho de Melo /* get the output mode */ 102519d4ac3cSArnaldo Carvalho de Melo if (!strncmp(tok, "graph", strlen(arg))) 102619d4ac3cSArnaldo Carvalho de Melo callchain_param.mode = CHAIN_GRAPH_ABS; 102719d4ac3cSArnaldo Carvalho de Melo 102819d4ac3cSArnaldo Carvalho de Melo else if (!strncmp(tok, "flat", strlen(arg))) 102919d4ac3cSArnaldo Carvalho de Melo callchain_param.mode = CHAIN_FLAT; 103019d4ac3cSArnaldo Carvalho de Melo 103119d4ac3cSArnaldo Carvalho de Melo else if (!strncmp(tok, "fractal", strlen(arg))) 103219d4ac3cSArnaldo Carvalho de Melo callchain_param.mode = CHAIN_GRAPH_REL; 103319d4ac3cSArnaldo Carvalho de Melo 103419d4ac3cSArnaldo Carvalho de Melo else if (!strncmp(tok, "none", strlen(arg))) { 103519d4ac3cSArnaldo Carvalho de Melo callchain_param.mode = CHAIN_NONE; 103619d4ac3cSArnaldo Carvalho de Melo symbol_conf.use_callchain = false; 103719d4ac3cSArnaldo Carvalho de Melo 103819d4ac3cSArnaldo Carvalho de Melo return 0; 1039806fb630SArnaldo Carvalho de Melo } else 104019d4ac3cSArnaldo Carvalho de Melo return -1; 104119d4ac3cSArnaldo Carvalho de Melo 104219d4ac3cSArnaldo Carvalho de Melo /* get the min percentage */ 104319d4ac3cSArnaldo Carvalho de Melo tok = strtok(NULL, ","); 104419d4ac3cSArnaldo Carvalho de Melo if (!tok) 104519d4ac3cSArnaldo Carvalho de Melo goto setup; 104619d4ac3cSArnaldo Carvalho de Melo 104719d4ac3cSArnaldo Carvalho de Melo callchain_param.min_percent = strtod(tok, &endptr); 104819d4ac3cSArnaldo Carvalho de Melo if (tok == endptr) 104919d4ac3cSArnaldo Carvalho de Melo return -1; 105019d4ac3cSArnaldo Carvalho de Melo 105119d4ac3cSArnaldo Carvalho de Melo /* get the print limit */ 105219d4ac3cSArnaldo Carvalho de Melo tok2 = strtok(NULL, ","); 105319d4ac3cSArnaldo Carvalho de Melo if (!tok2) 105419d4ac3cSArnaldo Carvalho de Melo goto setup; 105519d4ac3cSArnaldo Carvalho de Melo 105619d4ac3cSArnaldo Carvalho de Melo if (tok2[0] != 'c') { 105719d4ac3cSArnaldo Carvalho de Melo callchain_param.print_limit = strtod(tok2, &endptr); 105819d4ac3cSArnaldo Carvalho de Melo tok2 = strtok(NULL, ","); 105919d4ac3cSArnaldo Carvalho de Melo if (!tok2) 106019d4ac3cSArnaldo Carvalho de Melo goto setup; 106119d4ac3cSArnaldo Carvalho de Melo } 106219d4ac3cSArnaldo Carvalho de Melo 106319d4ac3cSArnaldo Carvalho de Melo /* get the call chain order */ 106419d4ac3cSArnaldo Carvalho de Melo if (!strcmp(tok2, "caller")) 106519d4ac3cSArnaldo Carvalho de Melo callchain_param.order = ORDER_CALLER; 106619d4ac3cSArnaldo Carvalho de Melo else if (!strcmp(tok2, "callee")) 106719d4ac3cSArnaldo Carvalho de Melo callchain_param.order = ORDER_CALLEE; 106819d4ac3cSArnaldo Carvalho de Melo else 106919d4ac3cSArnaldo Carvalho de Melo return -1; 107019d4ac3cSArnaldo Carvalho de Melo setup: 107119d4ac3cSArnaldo Carvalho de Melo if (callchain_register_param(&callchain_param) < 0) { 107219d4ac3cSArnaldo Carvalho de Melo fprintf(stderr, "Can't register callchain params\n"); 107319d4ac3cSArnaldo Carvalho de Melo return -1; 107419d4ac3cSArnaldo Carvalho de Melo } 107586470930SIngo Molnar return 0; 107686470930SIngo Molnar } 107786470930SIngo Molnar 107886470930SIngo Molnar static const char * const top_usage[] = { 107986470930SIngo Molnar "perf top [<options>]", 108086470930SIngo Molnar NULL 108186470930SIngo Molnar }; 108286470930SIngo Molnar 10831758af10SArnaldo Carvalho de Melo int cmd_top(int argc, const char **argv, const char *prefix __used) 10841758af10SArnaldo Carvalho de Melo { 10851758af10SArnaldo Carvalho de Melo struct perf_evsel *pos; 10861758af10SArnaldo Carvalho de Melo int status = -ENOMEM; 10871758af10SArnaldo Carvalho de Melo struct perf_top top = { 10881758af10SArnaldo Carvalho de Melo .count_filter = 5, 10891758af10SArnaldo Carvalho de Melo .delay_secs = 2, 10901758af10SArnaldo Carvalho de Melo .target_pid = -1, 10911758af10SArnaldo Carvalho de Melo .target_tid = -1, 10921758af10SArnaldo Carvalho de Melo .freq = 1000, /* 1 KHz */ 10931758af10SArnaldo Carvalho de Melo .sample_id_all_avail = true, 10941758af10SArnaldo Carvalho de Melo .mmap_pages = 128, 10951758af10SArnaldo Carvalho de Melo .sym_pcnt_filter = 5, 10961758af10SArnaldo Carvalho de Melo }; 10971758af10SArnaldo Carvalho de Melo char callchain_default_opt[] = "fractal,0.5,callee"; 10981758af10SArnaldo Carvalho de Melo const struct option options[] = { 10998c3e10ebSArnaldo Carvalho de Melo OPT_CALLBACK('e', "event", &top.evlist, "event", 110086470930SIngo Molnar "event selector. use 'perf list' to list available events", 1101f120f9d5SJiri Olsa parse_events_option), 11021758af10SArnaldo Carvalho de Melo OPT_INTEGER('c', "count", &top.default_interval, 110386470930SIngo Molnar "event period to sample"), 11048c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('p', "pid", &top.target_pid, 1105d6d901c2SZhang, Yanmin "profile events on existing process id"), 11068c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('t', "tid", &top.target_tid, 1107d6d901c2SZhang, Yanmin "profile events on existing thread id"), 11081758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('a', "all-cpus", &top.system_wide, 110986470930SIngo Molnar "system-wide collection from all CPUs"), 11108c3e10ebSArnaldo Carvalho de Melo OPT_STRING('C', "cpu", &top.cpu_list, "cpu", 1111c45c6ea2SStephane Eranian "list of cpus to monitor"), 1112b32d133aSArnaldo Carvalho de Melo OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1113b32d133aSArnaldo Carvalho de Melo "file", "vmlinux pathname"), 11148c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, 11158ffcda17SArnaldo Carvalho de Melo "hide kernel symbols"), 11161758af10SArnaldo Carvalho de Melo OPT_UINTEGER('m', "mmap-pages", &top.mmap_pages, "number of mmap data pages"), 11171758af10SArnaldo Carvalho de Melo OPT_INTEGER('r', "realtime", &top.realtime_prio, 111886470930SIngo Molnar "collect data with this RT SCHED_FIFO priority"), 11198c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('d', "delay", &top.delay_secs, 112086470930SIngo Molnar "number of seconds to delay between refreshes"), 11211758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, 112286470930SIngo Molnar "dump the symbol table used for profiling"), 11238c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('f', "count-filter", &top.count_filter, 112486470930SIngo Molnar "only display functions with more events than this"), 11251758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('g', "group", &top.group, 112686470930SIngo Molnar "put the counters into a counter group"), 11271758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('i', "inherit", &top.inherit, 11280fdc7e67SMike Galbraith "child tasks inherit counters"), 11291758af10SArnaldo Carvalho de Melo OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", 11306cff0e8dSKirill Smelkov "symbol to annotate"), 11318c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('z', "zero", &top.zero, 113286470930SIngo Molnar "zero history across updates"), 11338c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('F', "freq", &top.freq, 113486470930SIngo Molnar "profile at this frequency"), 11358c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('E', "entries", &top.print_entries, 113686470930SIngo Molnar "display this many functions"), 11378c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, 11388ffcda17SArnaldo Carvalho de Melo "hide user symbols"), 11391758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), 11401758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), 1141c0555642SIan Munsie OPT_INCR('v', "verbose", &verbose, 11423da297a6SIngo Molnar "be more verbose (show counter open errors, etc)"), 1143ab81f3fdSArnaldo Carvalho de Melo OPT_STRING('s', "sort", &sort_order, "key[,key2...]", 1144ab81f3fdSArnaldo Carvalho de Melo "sort by key(s): pid, comm, dso, symbol, parent"), 1145ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, 1146ab81f3fdSArnaldo Carvalho de Melo "Show a column with the number of samples"), 11471758af10SArnaldo Carvalho de Melo OPT_CALLBACK_DEFAULT('G', "call-graph", &top, "output_type,min_percent, call_order", 114819d4ac3cSArnaldo Carvalho de Melo "Display callchains using output_type (graph, flat, fractal, or none), min percent threshold and callchain order. " 114919d4ac3cSArnaldo Carvalho de Melo "Default: fractal,0.5,callee", &parse_callchain_opt, 115019d4ac3cSArnaldo Carvalho de Melo callchain_default_opt), 1151ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, 1152ab81f3fdSArnaldo Carvalho de Melo "Show a column with the sum of periods"), 1153ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 1154ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these dsos"), 1155ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1156ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these comms"), 1157ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1158ab81f3fdSArnaldo Carvalho de Melo "only consider these symbols"), 115964c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, 116064c6f0c7SArnaldo Carvalho de Melo "Interleave source code with assembly code (default)"), 116164c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, 116264c6f0c7SArnaldo Carvalho de Melo "Display raw encoding of assembly instructions (default)"), 116364c6f0c7SArnaldo Carvalho de Melo OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", 116464c6f0c7SArnaldo Carvalho de Melo "Specify disassembler style (e.g. -M intel for intel syntax)"), 116586470930SIngo Molnar OPT_END() 116686470930SIngo Molnar }; 116786470930SIngo Molnar 11688c3e10ebSArnaldo Carvalho de Melo top.evlist = perf_evlist__new(NULL, NULL); 11698c3e10ebSArnaldo Carvalho de Melo if (top.evlist == NULL) 1170361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 1171361c99a6SArnaldo Carvalho de Melo 1172ab81f3fdSArnaldo Carvalho de Melo symbol_conf.exclude_other = false; 117386470930SIngo Molnar 117486470930SIngo Molnar argc = parse_options(argc, argv, options, top_usage, 0); 117586470930SIngo Molnar if (argc) 117686470930SIngo Molnar usage_with_options(top_usage, options); 117786470930SIngo Molnar 1178ab81f3fdSArnaldo Carvalho de Melo if (sort_order == default_sort_order) 1179ab81f3fdSArnaldo Carvalho de Melo sort_order = "dso,symbol"; 1180ab81f3fdSArnaldo Carvalho de Melo 1181ab81f3fdSArnaldo Carvalho de Melo setup_sorting(top_usage, options); 1182ab81f3fdSArnaldo Carvalho de Melo 11831758af10SArnaldo Carvalho de Melo if (top.use_stdio) 1184c0443df1SArnaldo Carvalho de Melo use_browser = 0; 11851758af10SArnaldo Carvalho de Melo else if (top.use_tui) 1186c0443df1SArnaldo Carvalho de Melo use_browser = 1; 1187c0443df1SArnaldo Carvalho de Melo 1188c0443df1SArnaldo Carvalho de Melo setup_browser(false); 1189c0443df1SArnaldo Carvalho de Melo 119086470930SIngo Molnar /* CPU and PID are mutually exclusive */ 11918c3e10ebSArnaldo Carvalho de Melo if (top.target_tid > 0 && top.cpu_list) { 119286470930SIngo Molnar printf("WARNING: PID switch overriding CPU\n"); 119386470930SIngo Molnar sleep(1); 11948c3e10ebSArnaldo Carvalho de Melo top.cpu_list = NULL; 119586470930SIngo Molnar } 119686470930SIngo Molnar 11978c3e10ebSArnaldo Carvalho de Melo if (top.target_pid != -1) 11988c3e10ebSArnaldo Carvalho de Melo top.target_tid = top.target_pid; 11997e2ed097SArnaldo Carvalho de Melo 12008c3e10ebSArnaldo Carvalho de Melo if (perf_evlist__create_maps(top.evlist, top.target_pid, 12018c3e10ebSArnaldo Carvalho de Melo top.target_tid, top.cpu_list) < 0) 12027e2ed097SArnaldo Carvalho de Melo usage_with_options(top_usage, options); 12037e2ed097SArnaldo Carvalho de Melo 12048c3e10ebSArnaldo Carvalho de Melo if (!top.evlist->nr_entries && 12058c3e10ebSArnaldo Carvalho de Melo perf_evlist__add_default(top.evlist) < 0) { 120669aad6f1SArnaldo Carvalho de Melo pr_err("Not enough memory for event selector list\n"); 120769aad6f1SArnaldo Carvalho de Melo return -ENOMEM; 120869aad6f1SArnaldo Carvalho de Melo } 12095a8e5a30SArnaldo Carvalho de Melo 1210d04b35f8SArnaldo Carvalho de Melo symbol_conf.nr_events = top.evlist->nr_entries; 1211d04b35f8SArnaldo Carvalho de Melo 12128c3e10ebSArnaldo Carvalho de Melo if (top.delay_secs < 1) 12138c3e10ebSArnaldo Carvalho de Melo top.delay_secs = 1; 121486470930SIngo Molnar 12157e4ff9e3SMike Galbraith /* 12167e4ff9e3SMike Galbraith * User specified count overrides default frequency. 12177e4ff9e3SMike Galbraith */ 12181758af10SArnaldo Carvalho de Melo if (top.default_interval) 12198c3e10ebSArnaldo Carvalho de Melo top.freq = 0; 12208c3e10ebSArnaldo Carvalho de Melo else if (top.freq) { 12211758af10SArnaldo Carvalho de Melo top.default_interval = top.freq; 12227e4ff9e3SMike Galbraith } else { 12237e4ff9e3SMike Galbraith fprintf(stderr, "frequency and count are zero, aborting\n"); 12247e4ff9e3SMike Galbraith exit(EXIT_FAILURE); 12257e4ff9e3SMike Galbraith } 12267e4ff9e3SMike Galbraith 12278c3e10ebSArnaldo Carvalho de Melo list_for_each_entry(pos, &top.evlist->entries, node) { 122869aad6f1SArnaldo Carvalho de Melo /* 122969aad6f1SArnaldo Carvalho de Melo * Fill in the ones not specifically initialized via -c: 123069aad6f1SArnaldo Carvalho de Melo */ 1231806fb630SArnaldo Carvalho de Melo if (!pos->attr.sample_period) 12321758af10SArnaldo Carvalho de Melo pos->attr.sample_period = top.default_interval; 123369aad6f1SArnaldo Carvalho de Melo } 123469aad6f1SArnaldo Carvalho de Melo 12358c3e10ebSArnaldo Carvalho de Melo top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); 1236cc841580SArnaldo Carvalho de Melo 1237ab81f3fdSArnaldo Carvalho de Melo symbol_conf.priv_size = sizeof(struct annotation); 123869aad6f1SArnaldo Carvalho de Melo 123969aad6f1SArnaldo Carvalho de Melo symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); 124069aad6f1SArnaldo Carvalho de Melo if (symbol__init() < 0) 124169aad6f1SArnaldo Carvalho de Melo return -1; 124269aad6f1SArnaldo Carvalho de Melo 1243ab81f3fdSArnaldo Carvalho de Melo sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", stdout); 1244ab81f3fdSArnaldo Carvalho de Melo sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout); 1245ab81f3fdSArnaldo Carvalho de Melo sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout); 1246ab81f3fdSArnaldo Carvalho de Melo 124719d4ac3cSArnaldo Carvalho de Melo /* 124819d4ac3cSArnaldo Carvalho de Melo * Avoid annotation data structures overhead when symbols aren't on the 124919d4ac3cSArnaldo Carvalho de Melo * sort list. 125019d4ac3cSArnaldo Carvalho de Melo */ 12511758af10SArnaldo Carvalho de Melo top.sort_has_symbols = sort_sym.list.next != NULL; 125219d4ac3cSArnaldo Carvalho de Melo 12531758af10SArnaldo Carvalho de Melo get_term_dimensions(&top.winsize); 12548c3e10ebSArnaldo Carvalho de Melo if (top.print_entries == 0) { 12551758af10SArnaldo Carvalho de Melo struct sigaction act = { 12561758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 12571758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 12581758af10SArnaldo Carvalho de Melo }; 12591758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(&top); 12601758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 12613b6ed988SArnaldo Carvalho de Melo } 12623b6ed988SArnaldo Carvalho de Melo 12631758af10SArnaldo Carvalho de Melo status = __cmd_top(&top); 1264806fb630SArnaldo Carvalho de Melo 12658c3e10ebSArnaldo Carvalho de Melo perf_evlist__delete(top.evlist); 126669aad6f1SArnaldo Carvalho de Melo 126769aad6f1SArnaldo Carvalho de Melo return status; 126886470930SIngo Molnar } 1269