X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=tools%2Fperf%2Fbuiltin-top.c;h=a66f4272b994b546b0c2a811b0f1f613a4100a9a;hb=3be2264be3c00865116f997dc53ebcc90fe7fc4b;hp=ddc584b64871019f0eb08dcd447ff511ce639983;hpb=c410a33887c17cac95ed8b0d860cdfb5c087a7d8;p=safe%2Fjmp%2Flinux-2.6 diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index ddc584b..a66f427 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -28,6 +28,7 @@ #include #include "util/parse-options.h" #include "util/parse-events.h" +#include "util/cpumap.h" #include "util/debug.h" @@ -54,9 +55,9 @@ #include #include -static int fd[MAX_NR_CPUS][MAX_COUNTERS]; +static int *fd[MAX_NR_CPUS][MAX_COUNTERS]; -static int system_wide = 0; +static bool system_wide = false; static int default_interval = 0; @@ -64,18 +65,21 @@ static int count_filter = 5; static int print_entries; static int target_pid = -1; -static int inherit = 0; +static int target_tid = -1; +static pid_t *all_tids = NULL; +static int thread_num = 0; +static bool inherit = false; static int profile_cpu = -1; static int nr_cpus = 0; -static unsigned int realtime_prio = 0; -static int group = 0; +static int realtime_prio = 0; +static bool group = false; static unsigned int page_size; static unsigned int mmap_pages = 16; static int freq = 1000; /* 1 KHz */ static int delay_secs = 2; -static int zero = 0; -static int dump_symtab = 0; +static bool zero = false; +static bool dump_symtab = false; static bool hide_kernel_symbols = false; static bool hide_user_symbols = false; @@ -92,8 +96,9 @@ struct source_line { struct source_line *next; }; -static char *sym_filter = NULL; +static const char *sym_filter = NULL; struct sym_entry *sym_filter_entry = NULL; +struct sym_entry *sym_filter_entry_sched = NULL; static int sym_pcnt_filter = 5; static int sym_counter = 0; static int display_weighted = -1; @@ -131,7 +136,7 @@ static inline struct symbol *sym_entry__symbol(struct sym_entry *self) return ((void *)self) + symbol_conf.priv_size; } -static void get_term_dimensions(struct winsize *ws) +void get_term_dimensions(struct winsize *ws) { char *s = getenv("LINES"); @@ -167,7 +172,7 @@ static void sig_winch_handler(int sig __used) update_print_entries(&winsize); } -static void parse_source(struct sym_entry *syme) +static int parse_source(struct sym_entry *syme) { struct symbol *sym; struct sym_entry_source *source; @@ -178,12 +183,21 @@ static void parse_source(struct sym_entry *syme) u64 len; if (!syme) - return; + return -1; + + sym = sym_entry__symbol(syme); + map = syme->map; + + /* + * We can't annotate with just /proc/kallsyms + */ + if (map->dso->origin == DSO__ORIG_KERNEL) + return -1; if (syme->src == NULL) { syme->src = zalloc(sizeof(*source)); if (syme->src == NULL) - return; + return -1; pthread_mutex_init(&syme->src->lock, NULL); } @@ -193,29 +207,25 @@ static void parse_source(struct sym_entry *syme) pthread_mutex_lock(&source->lock); goto out_assign; } - - sym = sym_entry__symbol(syme); - map = syme->map; path = map->dso->long_name; len = sym->end - sym->start; sprintf(command, - "objdump --start-address=0x%016Lx " - "--stop-address=0x%016Lx -dS %s", - map->unmap_ip(map, sym->start), - map->unmap_ip(map, sym->end), path); + "objdump --start-address=%#0*Lx --stop-address=%#0*Lx -dS %s", + BITS_PER_LONG / 4, map__rip_2objdump(map, sym->start), + BITS_PER_LONG / 4, map__rip_2objdump(map, sym->end), path); file = popen(command, "r"); if (!file) - return; + return -1; pthread_mutex_lock(&source->lock); source->lines_tail = &source->lines; while (!feof(file)) { struct source_line *src; size_t dummy = 0; - char *c; + char *c, *sep; src = malloc(sizeof(struct source_line)); assert(src != NULL); @@ -234,19 +244,17 @@ static void parse_source(struct sym_entry *syme) *source->lines_tail = src; source->lines_tail = &src->next; - if (strlen(src->line)>8 && src->line[8] == ':') { - src->eip = strtoull(src->line, NULL, 16); - src->eip = map->unmap_ip(map, src->eip); - } - if (strlen(src->line)>8 && src->line[16] == ':') { - src->eip = strtoull(src->line, NULL, 16); - src->eip = map->unmap_ip(map, src->eip); - } + src->eip = strtoull(src->line, &sep, 16); + if (*sep == ':') + src->eip = map__objdump_2ip(map, src->eip); + else /* this line has no ip info (e.g. source line) */ + src->eip = 0; } pclose(file); out_assign: sym_filter_entry = syme; pthread_mutex_unlock(&source->lock); + return 0; } static void __zero_source_counters(struct sym_entry *syme) @@ -276,6 +284,9 @@ static void record_precise_ip(struct sym_entry *syme, int counter, u64 ip) goto out_unlock; for (line = syme->src->lines; line; line = line->next) { + /* skip lines without IP info */ + if (line->eip == 0) + continue; if (line->eip == ip) { line->count[counter]++; break; @@ -287,17 +298,20 @@ out_unlock: pthread_mutex_unlock(&syme->src->lock); } +#define PATTERN_LEN (BITS_PER_LONG / 4 + 2) + static void lookup_sym_source(struct sym_entry *syme) { struct symbol *symbol = sym_entry__symbol(syme); struct source_line *line; - char pattern[PATH_MAX]; + char pattern[PATTERN_LEN + 1]; - sprintf(pattern, "<%s>:", symbol->name); + sprintf(pattern, "%0*Lx <", BITS_PER_LONG / 4, + map__rip_2objdump(syme->map, symbol->start)); pthread_mutex_lock(&syme->src->lock); for (line = syme->src->lines; line; line = line->next) { - if (strstr(line->line, pattern)) { + if (memcmp(line->line, pattern, PATTERN_LEN) == 0) { syme->src->source = line; break; } @@ -406,7 +420,9 @@ static double sym_weight(const struct sym_entry *sym) } static long samples; -static long userspace_samples; +static long kernel_samples, us_samples; +static long exact_samples; +static long guest_us_samples, guest_kernel_samples; static const char CONSOLE_CLEAR[] = ""; static void __list_insert_active_sym(struct sym_entry *syme) @@ -446,15 +462,20 @@ static void print_sym_table(void) int printed = 0, j; int counter, snap = !display_weighted ? sym_counter : 0; float samples_per_sec = samples/delay_secs; - float ksamples_per_sec = (samples-userspace_samples)/delay_secs; + float ksamples_per_sec = kernel_samples/delay_secs; + float us_samples_per_sec = (us_samples)/delay_secs; + float guest_kernel_samples_per_sec = (guest_kernel_samples)/delay_secs; + float guest_us_samples_per_sec = (guest_us_samples)/delay_secs; + float esamples_percent = (100.0*exact_samples)/samples; float sum_ksamples = 0.0; struct sym_entry *syme, *n; struct rb_root tmp = RB_ROOT; struct rb_node *nd; - int sym_width = 0, dso_width = 0, max_dso_width; + int sym_width = 0, dso_width = 0, dso_short_width = 0; const int win_width = winsize.ws_col - 1; - samples = userspace_samples = 0; + samples = us_samples = kernel_samples = exact_samples = 0; + guest_kernel_samples = guest_us_samples = 0; /* Sort the active symbols */ pthread_mutex_lock(&active_symbols_lock); @@ -485,9 +506,30 @@ static void print_sym_table(void) puts(CONSOLE_CLEAR); printf("%-*.*s\n", win_width, win_width, graph_dotted_line); - printf( " PerfTop:%8.0f irqs/sec kernel:%4.1f%% [", - samples_per_sec, - 100.0 - (100.0*((samples_per_sec-ksamples_per_sec)/samples_per_sec))); + if (!perf_guest) { + printf(" PerfTop:%8.0f irqs/sec kernel:%4.1f%%" + " exact: %4.1f%% [", + samples_per_sec, + 100.0 - (100.0 * ((samples_per_sec - ksamples_per_sec) / + samples_per_sec)), + esamples_percent); + } else { + printf(" PerfTop:%8.0f irqs/sec kernel:%4.1f%% us:%4.1f%%" + " guest kernel:%4.1f%% guest us:%4.1f%%" + " exact: %4.1f%% [", + samples_per_sec, + 100.0 - (100.0 * ((samples_per_sec-ksamples_per_sec) / + samples_per_sec)), + 100.0 - (100.0 * ((samples_per_sec-us_samples_per_sec) / + samples_per_sec)), + 100.0 - (100.0 * ((samples_per_sec - + guest_kernel_samples_per_sec) / + samples_per_sec)), + 100.0 - (100.0 * ((samples_per_sec - + guest_us_samples_per_sec) / + samples_per_sec)), + esamples_percent); + } if (nr_counters == 1 || !display_weighted) { printf("%Ld", (u64)attrs[0].sample_period); @@ -510,13 +552,15 @@ static void print_sym_table(void) if (target_pid != -1) printf(" (target_pid: %d", target_pid); + else if (target_tid != -1) + printf(" (target_tid: %d", target_tid); else printf(" (all"); if (profile_cpu != -1) printf(", cpu: %d)\n", profile_cpu); else { - if (target_pid != -1) + if (target_tid != -1) printf(")\n"); else printf(", %d CPUs)\n", nr_cpus); @@ -541,15 +585,20 @@ static void print_sym_table(void) if (syme->map->dso->long_name_len > dso_width) dso_width = syme->map->dso->long_name_len; + if (syme->map->dso->short_name_len > dso_short_width) + dso_short_width = syme->map->dso->short_name_len; + if (syme->name_len > sym_width) sym_width = syme->name_len; } printed = 0; - max_dso_width = winsize.ws_col - sym_width - 29; - if (dso_width > max_dso_width) - dso_width = max_dso_width; + if (sym_width + dso_width > winsize.ws_col - 29) { + dso_width = dso_short_width; + if (sym_width + dso_width > winsize.ws_col - 29) + sym_width = winsize.ws_col - dso_width - 29; + } putchar('\n'); if (nr_counters == 1) printf(" samples pcnt"); @@ -573,7 +622,6 @@ static void print_sym_table(void) syme = rb_entry(nd, struct sym_entry, rb_node); sym = sym_entry__symbol(syme); - if (++printed > print_entries || (int)syme->snap_count < count_filter) continue; @@ -667,7 +715,7 @@ static void prompt_symbol(struct sym_entry **target, const char *msg) } if (!found) { - fprintf(stderr, "Sorry, %s is not active.\n", sym_filter); + fprintf(stderr, "Sorry, %s is not active.\n", buf); sleep(1); return; } else @@ -695,17 +743,15 @@ static void print_mapped_keys(void) fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", count_filter); - if (symbol_conf.vmlinux_name) { - fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", sym_pcnt_filter); - fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); - fprintf(stdout, "\t[S] stop annotation.\n"); - } + fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", sym_pcnt_filter); + fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); + fprintf(stdout, "\t[S] stop annotation.\n"); if (nr_counters > 1) fprintf(stdout, "\t[w] toggle display weighted/count[E]r. \t(%d)\n", display_weighted ? 1 : 0); fprintf(stdout, - "\t[K] hide kernel_symbols symbols. \t(%s)\n", + "\t[K] hide kernel_symbols symbols. \t(%s)\n", hide_kernel_symbols ? "yes" : "no"); fprintf(stdout, "\t[U] hide user symbols. \t(%s)\n", @@ -725,14 +771,13 @@ static int key_mapped(int c) case 'Q': case 'K': case 'U': + case 'F': + case 's': + case 'S': return 1; case 'E': case 'w': return nr_counters > 1 ? 1 : 0; - case 'F': - case 's': - case 'S': - return symbol_conf.vmlinux_name ? 1 : 0; default: break; } @@ -740,7 +785,7 @@ static int key_mapped(int c) return 0; } -static void handle_keypress(int c) +static void handle_keypress(struct perf_session *session, int c) { if (!key_mapped(c)) { struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; @@ -809,7 +854,7 @@ static void handle_keypress(int c) case 'Q': printf("exiting.\n"); if (dump_symtab) - dsos__fprintf(stderr); + perf_session__fprintf_dsos(session, stderr); exit(0); case 's': prompt_symbol(&sym_filter_entry, "Enter details symbol"); @@ -833,7 +878,7 @@ static void handle_keypress(int c) display_weighted = ~display_weighted; break; case 'z': - zero = ~zero; + zero = !zero; break; default: break; @@ -845,6 +890,7 @@ static void *display_thread(void *arg __used) struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; struct termios tc, save; int delay_msecs, c; + struct perf_session *session = (struct perf_session *) arg; tcgetattr(0, &save); tc = save; @@ -865,7 +911,7 @@ repeat: c = getc(stdin); tcsetattr(0, TCSAFLUSH, &save); - handle_keypress(c); + handle_keypress(session, c); goto repeat; return NULL; @@ -910,8 +956,12 @@ static int symbol_filter(struct map *map, struct symbol *sym) syme = symbol__priv(sym); syme->map = map; syme->src = NULL; - if (!sym_filter_entry && sym_filter && !strcmp(name, sym_filter)) - sym_filter_entry = syme; + + if (!sym_filter_entry && sym_filter && !strcmp(name, sym_filter)) { + /* schedule initial sym_filter_entry setup */ + sym_filter_entry_sched = syme; + sym_filter = NULL; + } for (i = 0; skip_symbols[i]; i++) { if (!strcmp(skip_symbols[i], name)) { @@ -932,25 +982,91 @@ static void event__process_sample(const event_t *self, u64 ip = self->ip.ip; struct sym_entry *syme; struct addr_location al; + struct machine *machine; u8 origin = self->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; + ++samples; + switch (origin) { case PERF_RECORD_MISC_USER: + ++us_samples; if (hide_user_symbols) return; + machine = perf_session__find_host_machine(session); break; case PERF_RECORD_MISC_KERNEL: + ++kernel_samples; if (hide_kernel_symbols) return; + machine = perf_session__find_host_machine(session); + break; + case PERF_RECORD_MISC_GUEST_KERNEL: + ++guest_kernel_samples; + machine = perf_session__find_machine(session, self->ip.pid); break; + case PERF_RECORD_MISC_GUEST_USER: + ++guest_us_samples; + /* + * TODO: we don't process guest user from host side + * except simple counting. + */ + return; default: return; } + if (!machine && perf_guest) { + pr_err("Can't find guest [%d]'s kernel information\n", + self->ip.pid); + return; + } + + if (self->header.misc & PERF_RECORD_MISC_EXACT_IP) + exact_samples++; + if (event__preprocess_sample(self, session, &al, symbol_filter) < 0 || - al.sym == NULL || al.filtered) + al.filtered) return; + if (al.sym == NULL) { + /* + * As we do lazy loading of symtabs we only will know if the + * specified vmlinux file is invalid when we actually have a + * hit in kernel space and then try to load it. So if we get + * here and there are _no_ symbols in the DSO backing the + * kernel map, bail out. + * + * We may never get here, for instance, if we use -K/ + * --hide-kernel-symbols, even if the user specifies an + * invalid --vmlinux ;-) + */ + if (al.map == machine->vmlinux_maps[MAP__FUNCTION] && + RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { + pr_err("The %s file can't be used\n", + symbol_conf.vmlinux_name); + exit(1); + } + + return; + } + + /* let's see, whether we need to install initial sym_filter_entry */ + if (sym_filter_entry_sched) { + sym_filter_entry = sym_filter_entry_sched; + sym_filter_entry_sched = NULL; + if (parse_source(sym_filter_entry) < 0) { + struct symbol *sym = sym_entry__symbol(sym_filter_entry); + + pr_err("Can't annotate %s", sym->name); + if (sym_filter_entry->map->dso->origin == DSO__ORIG_KERNEL) { + pr_err(": No vmlinux file was found in the path:\n"); + machine__fprintf_vmlinux_path(machine, stderr); + } else + pr_err(".\n"); + exit(1); + } + } + syme = symbol__priv(al.sym); if (!syme->skip) { syme->count[counter]++; @@ -960,9 +1076,6 @@ static void event__process_sample(const event_t *self, if (list_empty(&syme->node) || !syme->node.next) __list_insert_active_sym(syme); pthread_mutex_unlock(&active_symbols_lock); - if (origin == PERF_RECORD_MISC_USER) - ++userspace_samples; - ++samples; } } @@ -975,6 +1088,10 @@ static int event__process(event_t *event, struct perf_session *session) case PERF_RECORD_MMAP: event__process_mmap(event, session); break; + case PERF_RECORD_FORK: + case PERF_RECORD_EXIT: + event__process_task(event, session); + break; default: break; } @@ -1063,16 +1180,21 @@ static void perf_session__mmap_read_counter(struct perf_session *self, md->prev = old; } -static struct pollfd event_array[MAX_NR_CPUS * MAX_COUNTERS]; -static struct mmap_data mmap_array[MAX_NR_CPUS][MAX_COUNTERS]; +static struct pollfd *event_array; +static struct mmap_data *mmap_array[MAX_NR_CPUS][MAX_COUNTERS]; static void perf_session__mmap_read(struct perf_session *self) { - int i, counter; + int i, counter, thread_index; for (i = 0; i < nr_cpus; i++) { for (counter = 0; counter < nr_counters; counter++) - perf_session__mmap_read_counter(self, &mmap_array[i][counter]); + for (thread_index = 0; + thread_index < thread_num; + thread_index++) { + perf_session__mmap_read_counter(self, + &mmap_array[i][counter][thread_index]); + } } } @@ -1083,10 +1205,11 @@ static void start_counter(int i, int counter) { struct perf_event_attr *attr; int cpu; + int thread_index; cpu = profile_cpu; - if (target_pid == -1 && profile_cpu == -1) - cpu = i; + if (target_tid == -1 && profile_cpu == -1) + cpu = cpumap[i]; attr = attrs + counter; @@ -1101,55 +1224,58 @@ static void start_counter(int i, int counter) attr->inherit = (cpu < 0) && inherit; attr->mmap = 1; + for (thread_index = 0; thread_index < thread_num; thread_index++) { try_again: - fd[i][counter] = sys_perf_event_open(attr, target_pid, cpu, group_fd, 0); - - if (fd[i][counter] < 0) { - int err = errno; + fd[i][counter][thread_index] = sys_perf_event_open(attr, + all_tids[thread_index], cpu, group_fd, 0); + + if (fd[i][counter][thread_index] < 0) { + int err = errno; + + if (err == EPERM || err == EACCES) + die("No permission - are you root?\n"); + /* + * If it's cycles then fall back to hrtimer + * based cpu-clock-tick sw counter, which + * is always available even if no PMU support: + */ + if (attr->type == PERF_TYPE_HARDWARE + && attr->config == PERF_COUNT_HW_CPU_CYCLES) { + + if (verbose) + warning(" ... trying to fall back to cpu-clock-ticks\n"); + + attr->type = PERF_TYPE_SOFTWARE; + attr->config = PERF_COUNT_SW_CPU_CLOCK; + goto try_again; + } + printf("\n"); + error("perfcounter syscall returned with %d (%s)\n", + fd[i][counter][thread_index], strerror(err)); + die("No CONFIG_PERF_EVENTS=y kernel support configured?\n"); + exit(-1); + } + assert(fd[i][counter][thread_index] >= 0); + fcntl(fd[i][counter][thread_index], F_SETFL, O_NONBLOCK); - if (err == EPERM || err == EACCES) - die("No permission - are you root?\n"); /* - * If it's cycles then fall back to hrtimer - * based cpu-clock-tick sw counter, which - * is always available even if no PMU support: + * First counter acts as the group leader: */ - if (attr->type == PERF_TYPE_HARDWARE - && attr->config == PERF_COUNT_HW_CPU_CYCLES) { - - if (verbose) - warning(" ... trying to fall back to cpu-clock-ticks\n"); - - attr->type = PERF_TYPE_SOFTWARE; - attr->config = PERF_COUNT_SW_CPU_CLOCK; - goto try_again; - } - printf("\n"); - error("perfcounter syscall returned with %d (%s)\n", - fd[i][counter], strerror(err)); - die("No CONFIG_PERF_EVENTS=y kernel support configured?\n"); - exit(-1); + if (group && group_fd == -1) + group_fd = fd[i][counter][thread_index]; + + event_array[nr_poll].fd = fd[i][counter][thread_index]; + event_array[nr_poll].events = POLLIN; + nr_poll++; + + mmap_array[i][counter][thread_index].counter = counter; + mmap_array[i][counter][thread_index].prev = 0; + mmap_array[i][counter][thread_index].mask = mmap_pages*page_size - 1; + mmap_array[i][counter][thread_index].base = mmap(NULL, (mmap_pages+1)*page_size, + PROT_READ, MAP_SHARED, fd[i][counter][thread_index], 0); + if (mmap_array[i][counter][thread_index].base == MAP_FAILED) + die("failed to mmap with %d (%s)\n", errno, strerror(errno)); } - assert(fd[i][counter] >= 0); - fcntl(fd[i][counter], F_SETFL, O_NONBLOCK); - - /* - * First counter acts as the group leader: - */ - if (group && group_fd == -1) - group_fd = fd[i][counter]; - - event_array[nr_poll].fd = fd[i][counter]; - event_array[nr_poll].events = POLLIN; - nr_poll++; - - mmap_array[i][counter].counter = counter; - mmap_array[i][counter].prev = 0; - mmap_array[i][counter].mask = mmap_pages*page_size - 1; - mmap_array[i][counter].base = mmap(NULL, (mmap_pages+1)*page_size, - PROT_READ, MAP_SHARED, fd[i][counter], 0); - if (mmap_array[i][counter].base == MAP_FAILED) - die("failed to mmap with %d (%s)\n", errno, strerror(errno)); } static int __cmd_top(void) @@ -1161,12 +1287,12 @@ static int __cmd_top(void) * FIXME: perf_session__new should allow passing a O_MMAP, so that all this * mmap reading, etc is encapsulated in it. Use O_WRONLY for now. */ - struct perf_session *session = perf_session__new(NULL, O_WRONLY, false); + struct perf_session *session = perf_session__new(NULL, O_WRONLY, false, false); if (session == NULL) return -ENOMEM; - if (target_pid != -1) - event__synthesize_thread(target_pid, event__process, session); + if (target_tid != -1) + event__synthesize_thread(target_tid, event__process, session); else event__synthesize_threads(event__process, session); @@ -1177,11 +1303,11 @@ static int __cmd_top(void) } /* Wait for a minimal set of events before starting the snapshot */ - poll(event_array, nr_poll, 100); + poll(&event_array[0], nr_poll, 100); perf_session__mmap_read(session); - if (pthread_create(&thread, NULL, display_thread, NULL)) { + if (pthread_create(&thread, NULL, display_thread, session)) { printf("Could not create display thread.\n"); exit(-1); } @@ -1220,7 +1346,9 @@ static const struct option options[] = { OPT_INTEGER('c', "count", &default_interval, "event period to sample"), OPT_INTEGER('p', "pid", &target_pid, - "profile events on existing pid"), + "profile events on existing process id"), + OPT_INTEGER('t', "tid", &target_tid, + "profile events on existing thread id"), OPT_BOOLEAN('a', "all-cpus", &system_wide, "system-wide collection from all CPUs"), OPT_INTEGER('C', "CPU", &profile_cpu, @@ -1229,8 +1357,7 @@ static const struct option options[] = { "file", "vmlinux pathname"), OPT_BOOLEAN('K', "hide_kernel_symbols", &hide_kernel_symbols, "hide kernel symbols"), - OPT_INTEGER('m', "mmap-pages", &mmap_pages, - "number of mmap data pages"), + OPT_UINTEGER('m', "mmap-pages", &mmap_pages, "number of mmap data pages"), OPT_INTEGER('r', "realtime", &realtime_prio, "collect data with this RT SCHED_FIFO priority"), OPT_INTEGER('d', "delay", &delay_secs, @@ -1244,7 +1371,7 @@ static const struct option options[] = { OPT_BOOLEAN('i', "inherit", &inherit, "child tasks inherit counters"), OPT_STRING('s', "sym-annotate", &sym_filter, "symbol name", - "symbol to annotate - requires -k option"), + "symbol to annotate"), OPT_BOOLEAN('z', "zero", &zero, "zero history across updates"), OPT_INTEGER('F', "freq", &freq, @@ -1253,7 +1380,7 @@ static const struct option options[] = { "display this many functions"), OPT_BOOLEAN('U', "hide_user_symbols", &hide_user_symbols, "hide user symbols"), - OPT_BOOLEAN('v', "verbose", &verbose, + OPT_INCR('v', "verbose", &verbose, "be more verbose (show counter open errors, etc)"), OPT_END() }; @@ -1261,6 +1388,7 @@ static const struct option options[] = { int cmd_top(int argc, const char **argv, const char *prefix __used) { int counter; + int i,j; page_size = sysconf(_SC_PAGE_SIZE); @@ -1268,8 +1396,39 @@ int cmd_top(int argc, const char **argv, const char *prefix __used) if (argc) usage_with_options(top_usage, options); + if (target_pid != -1) { + target_tid = target_pid; + thread_num = find_all_tid(target_pid, &all_tids); + if (thread_num <= 0) { + fprintf(stderr, "Can't find all threads of pid %d\n", + target_pid); + usage_with_options(top_usage, options); + } + } else { + all_tids=malloc(sizeof(pid_t)); + if (!all_tids) + return -ENOMEM; + + all_tids[0] = target_tid; + thread_num = 1; + } + + for (i = 0; i < MAX_NR_CPUS; i++) { + for (j = 0; j < MAX_COUNTERS; j++) { + fd[i][j] = malloc(sizeof(int)*thread_num); + mmap_array[i][j] = zalloc( + sizeof(struct mmap_data)*thread_num); + if (!fd[i][j] || !mmap_array[i][j]) + return -ENOMEM; + } + } + event_array = malloc( + sizeof(struct pollfd)*MAX_NR_CPUS*MAX_COUNTERS*thread_num); + if (!event_array) + return -ENOMEM; + /* CPU and PID are mutually exclusive */ - if (target_pid != -1 && profile_cpu != -1) { + if (target_tid > 0 && profile_cpu != -1) { printf("WARNING: PID switch overriding CPU\n"); sleep(1); profile_cpu = -1; @@ -1280,16 +1439,14 @@ int cmd_top(int argc, const char **argv, const char *prefix __used) symbol_conf.priv_size = (sizeof(struct sym_entry) + (nr_counters + 1) * sizeof(unsigned long)); - if (symbol_conf.vmlinux_name == NULL) - symbol_conf.try_vmlinux_path = true; + + symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); if (symbol__init() < 0) return -1; if (delay_secs < 1) delay_secs = 1; - parse_source(sym_filter_entry); - /* * User specified count overrides default frequency. */ @@ -1312,12 +1469,10 @@ int cmd_top(int argc, const char **argv, const char *prefix __used) attrs[counter].sample_period = default_interval; } - nr_cpus = sysconf(_SC_NPROCESSORS_ONLN); - assert(nr_cpus <= MAX_NR_CPUS); - assert(nr_cpus >= 0); - - if (target_pid != -1 || profile_cpu != -1) + if (target_tid != -1 || profile_cpu != -1) nr_cpus = 1; + else + nr_cpus = read_cpu_map(); get_term_dimensions(&winsize); if (print_entries == 0) {