diff options
Diffstat (limited to 'tools/perf/builtin-top.c')
| -rw-r--r-- | tools/perf/builtin-top.c | 56 |
1 files changed, 28 insertions, 28 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 7d723ad..df85c1f 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -78,7 +78,7 @@ static struct cpu_map *cpus; static int realtime_prio = 0; static bool group = false; static unsigned int page_size; -static unsigned int mmap_pages = 16; +static unsigned int mmap_pages = 128; static int freq = 1000; /* 1 KHz */ static int delay_secs = 2; @@ -991,8 +991,7 @@ static int symbol_filter(struct map *map, struct symbol *sym) static void event__process_sample(const event_t *self, struct sample_data *sample, - struct perf_session *session, - struct perf_evsel *evsel) + struct perf_session *session) { u64 ip = self->ip.ip; struct sym_entry *syme; @@ -1085,8 +1084,12 @@ static void event__process_sample(const event_t *self, syme = symbol__priv(al.sym); if (!syme->skip) { - syme->count[evsel->idx]++; + struct perf_evsel *evsel; + syme->origin = origin; + evsel = perf_evlist__id2evsel(evsel_list, sample->id); + assert(evsel != NULL); + syme->count[evsel->idx]++; record_precise_ip(syme, evsel->idx, ip); pthread_mutex_lock(&active_symbols_lock); if (list_empty(&syme->node) || !syme->node.next) @@ -1095,11 +1098,9 @@ static void event__process_sample(const event_t *self, } } -static void perf_session__mmap_read_counter(struct perf_session *self, - struct perf_evsel *evsel, - int cpu, int thread_idx) +static void perf_session__mmap_read_cpu(struct perf_session *self, int cpu) { - struct perf_mmap *md = xyarray__entry(evsel->mmap, cpu, thread_idx); + struct perf_mmap *md = &evsel_list->mmap[cpu]; unsigned int head = perf_mmap__read_head(md); unsigned int old = md->prev; unsigned char *data = md->base + page_size; @@ -1153,7 +1154,7 @@ static void perf_session__mmap_read_counter(struct perf_session *self, event__parse_sample(event, self, &sample); if (event->header.type == PERF_RECORD_SAMPLE) - event__process_sample(event, &sample, self, evsel); + event__process_sample(event, &sample, self); else event__process(event, &sample, self); old += size; @@ -1164,19 +1165,10 @@ static void perf_session__mmap_read_counter(struct perf_session *self, static void perf_session__mmap_read(struct perf_session *self) { - struct perf_evsel *counter; - int i, thread_index; - - for (i = 0; i < cpus->nr; i++) { - list_for_each_entry(counter, &evsel_list->entries, node) { - for (thread_index = 0; - thread_index < threads->nr; - thread_index++) { - perf_session__mmap_read_counter(self, - counter, i, thread_index); - } - } - } + int i; + + for (i = 0; i < cpus->nr; i++) + perf_session__mmap_read_cpu(self, i); } static void start_counters(struct perf_evlist *evlist) @@ -1194,6 +1186,11 @@ static void start_counters(struct perf_evlist *evlist) attr->sample_freq = freq; } + if (evlist->nr_entries > 1) { + attr->sample_type |= PERF_SAMPLE_ID; + attr->read_format |= PERF_FORMAT_ID; + } + attr->mmap = 1; try_again: if (perf_evsel__open(counter, cpus, threads, group, inherit) < 0) { @@ -1225,15 +1222,16 @@ try_again: die("No CONFIG_PERF_EVENTS=y kernel support configured?\n"); exit(-1); } - - if (perf_evsel__mmap(counter, cpus, threads, mmap_pages, evlist) < 0) - die("failed to mmap with %d (%s)\n", errno, strerror(errno)); } + + if (perf_evlist__mmap(evlist, cpus, threads, mmap_pages, true) < 0) + die("failed to mmap with %d (%s)\n", errno, strerror(errno)); } static int __cmd_top(void) { pthread_t thread; + struct perf_evsel *first; int ret; /* * FIXME: perf_session__new should allow passing a O_MMAP, so that all this @@ -1249,6 +1247,8 @@ static int __cmd_top(void) event__synthesize_threads(event__process, session); start_counters(evsel_list); + first = list_entry(evsel_list->entries.next, struct perf_evsel, node); + perf_session__set_sample_type(session, first->attr.sample_type); /* Wait for a minimal set of events before starting the snapshot */ poll(evsel_list->pollfd, evsel_list->nr_fds, 100); @@ -1394,8 +1394,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __used) usage_with_options(top_usage, options); list_for_each_entry(pos, &evsel_list->entries, node) { - if (perf_evsel__alloc_mmap(pos, cpus->nr, threads->nr) < 0 || - perf_evsel__alloc_fd(pos, cpus->nr, threads->nr) < 0) + if (perf_evsel__alloc_fd(pos, cpus->nr, threads->nr) < 0) goto out_free_fd; /* * Fill in the ones not specifically initialized via -c: @@ -1406,7 +1405,8 @@ int cmd_top(int argc, const char **argv, const char *prefix __used) pos->attr.sample_period = default_interval; } - if (perf_evlist__alloc_pollfd(evsel_list, cpus->nr, threads->nr) < 0) + if (perf_evlist__alloc_pollfd(evsel_list, cpus->nr, threads->nr) < 0 || + perf_evlist__alloc_mmap(evsel_list, cpus->nr) < 0) goto out_free_fd; sym_evsel = list_entry(evsel_list->entries.next, struct perf_evsel, node); |
