diff options
Diffstat (limited to 'tools/perf/builtin-stat.c')
| -rw-r--r-- | tools/perf/builtin-stat.c | 1150 |
1 files changed, 0 insertions, 1150 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index f4ddedc8619b..0b0e3961d511 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -88,8 +88,6 @@ #include "sane_ctype.h" #define DEFAULT_SEPARATOR " " -#define CNTR_NOT_SUPPORTED "<not supported>" -#define CNTR_NOT_COUNTED "<not counted>" #define FREEZE_ON_SMI_PATH "devices/cpu/freeze_on_smi" static void print_counters(struct timespec *ts, int argc, const char **argv); @@ -189,11 +187,6 @@ static struct perf_stat_config stat_config = { .big_num = true, }; -static bool is_duration_time(struct perf_evsel *evsel) -{ - return !strcmp(evsel->name, "duration_time"); -} - static inline void diff_timespec(struct timespec *r, struct timespec *a, struct timespec *b) { @@ -643,1149 +636,6 @@ static int run_perf_stat(int argc, const char **argv, int run_idx) return ret; } -static void print_running(struct perf_stat_config *config, - u64 run, u64 ena) -{ - if (config->csv_output) { - fprintf(config->output, "%s%" PRIu64 "%s%.2f", - config->csv_sep, - run, - config->csv_sep, - ena ? 100.0 * run / ena : 100.0); - } else if (run != ena) { - fprintf(config->output, " (%.2f%%)", 100.0 * run / ena); - } -} - -static void print_noise_pct(struct perf_stat_config *config, - double total, double avg) -{ - double pct = rel_stddev_stats(total, avg); - - if (config->csv_output) - fprintf(config->output, "%s%.2f%%", config->csv_sep, pct); - else if (pct) - fprintf(config->output, " ( +-%6.2f%% )", pct); -} - -static void print_noise(struct perf_stat_config *config, - struct perf_evsel *evsel, double avg) -{ - struct perf_stat_evsel *ps; - - if (config->run_count == 1) - return; - - ps = evsel->stats; - print_noise_pct(config, stddev_stats(&ps->res_stats[0]), avg); -} - -static void aggr_printout(struct perf_stat_config *config, - struct perf_evsel *evsel, int id, int nr) -{ - switch (config->aggr_mode) { - case AGGR_CORE: - fprintf(config->output, "S%d-C%*d%s%*d%s", - cpu_map__id_to_socket(id), - config->csv_output ? 0 : -8, - cpu_map__id_to_cpu(id), - config->csv_sep, - config->csv_output ? 0 : 4, - nr, - config->csv_sep); - break; - case AGGR_SOCKET: - fprintf(config->output, "S%*d%s%*d%s", - config->csv_output ? 0 : -5, - id, - config->csv_sep, - config->csv_output ? 0 : 4, - nr, - config->csv_sep); - break; - case AGGR_NONE: - fprintf(config->output, "CPU%*d%s", - config->csv_output ? 0 : -4, - perf_evsel__cpus(evsel)->map[id], config->csv_sep); - break; - case AGGR_THREAD: - fprintf(config->output, "%*s-%*d%s", - config->csv_output ? 0 : 16, - thread_map__comm(evsel->threads, id), - config->csv_output ? 0 : -8, - thread_map__pid(evsel->threads, id), - config->csv_sep); - break; - case AGGR_GLOBAL: - case AGGR_UNSET: - default: - break; - } -} - -struct outstate { - FILE *fh; - bool newline; - const char *prefix; - int nfields; - int id, nr; - struct perf_evsel *evsel; -}; - -#define METRIC_LEN 35 - -static void new_line_std(struct perf_stat_config *config __maybe_unused, - void *ctx) -{ - struct outstate *os = ctx; - - os->newline = true; -} - -static void do_new_line_std(struct perf_stat_config *config, - struct outstate *os) -{ - fputc('\n', os->fh); - fputs(os->prefix, os->fh); - aggr_printout(config, os->evsel, os->id, os->nr); - if (config->aggr_mode == AGGR_NONE) - fprintf(os->fh, " "); - fprintf(os->fh, " "); -} - -static void print_metric_std(struct perf_stat_config *config, - void *ctx, const char *color, const char *fmt, - const char *unit, double val) -{ - struct outstate *os = ctx; - FILE *out = os->fh; - int n; - bool newline = os->newline; - - os->newline = false; - - if (unit == NULL || fmt == NULL) { - fprintf(out, "%-*s", METRIC_LEN, ""); - return; - } - - if (newline) - do_new_line_std(config, os); - - n = fprintf(out, " # "); - if (color) - n += color_fprintf(out, color, fmt, val); - else - n += fprintf(out, fmt, val); - fprintf(out, " %-*s", METRIC_LEN - n - 1, unit); -} - -static void new_line_csv(struct perf_stat_config *config, void *ctx) -{ - struct outstate *os = ctx; - int i; - - fputc('\n', os->fh); - if (os->prefix) - fprintf(os->fh, "%s%s", os->prefix, config->csv_sep); - aggr_printout(config, os->evsel, os->id, os->nr); - for (i = 0; i < os->nfields; i++) - fputs(config->csv_sep, os->fh); -} - -static void print_metric_csv(struct perf_stat_config *config __maybe_unused, - void *ctx, - const char *color __maybe_unused, - const char *fmt, const char *unit, double val) -{ - struct outstate *os = ctx; - FILE *out = os->fh; - char buf[64], *vals, *ends; - - if (unit == NULL || fmt == NULL) { - fprintf(out, "%s%s", config->csv_sep, config->csv_sep); - return; - } - snprintf(buf, sizeof(buf), fmt, val); - ends = vals = ltrim(buf); - while (isdigit(*ends) || *ends == '.') - ends++; - *ends = 0; - while (isspace(*unit)) - unit++; - fprintf(out, "%s%s%s%s", config->csv_sep, vals, config->csv_sep, unit); -} - -/* Filter out some columns that don't work well in metrics only mode */ - -static bool valid_only_metric(const char *unit) -{ - if (!unit) - return false; - if (strstr(unit, "/sec") || - strstr(unit, "hz") || - strstr(unit, "Hz") || - strstr(unit, "CPUs utilized")) - return false; - return true; -} - -static const char *fixunit(char *buf, struct perf_evsel *evsel, - const char *unit) -{ - if (!strncmp(unit, "of all", 6)) { - snprintf(buf, 1024, "%s %s", perf_evsel__name(evsel), - unit); - return buf; - } - return unit; -} - -static void print_metric_only(struct perf_stat_config *config, - void *ctx, const char *color, const char *fmt, - const char *unit, double val) -{ - struct outstate *os = ctx; - FILE *out = os->fh; - char buf[1024], str[1024]; - unsigned mlen = config->metric_only_len; - - if (!valid_only_metric(unit)) - return; - unit = fixunit(buf, os->evsel, unit); - if (mlen < strlen(unit)) - mlen = strlen(unit) + 1; - - if (color) - mlen += strlen(color) + sizeof(PERF_COLOR_RESET) - 1; - - color_snprintf(str, sizeof(str), color ?: "", fmt, val); - fprintf(out, "%*s ", mlen, str); -} - -static void print_metric_only_csv(struct perf_stat_config *config __maybe_unused, - void *ctx, const char *color __maybe_unused, - const char *fmt, - const char *unit, double val) -{ - struct outstate *os = ctx; - FILE *out = os->fh; - char buf[64], *vals, *ends; - char tbuf[1024]; - - if (!valid_only_metric(unit)) - return; - unit = fixunit(tbuf, os->evsel, unit); - snprintf(buf, sizeof buf, fmt, val); - ends = vals = ltrim(buf); - while (isdigit(*ends) || *ends == '.') - ends++; - *ends = 0; - fprintf(out, "%s%s", vals, config->csv_sep); -} - -static void new_line_metric(struct perf_stat_config *config __maybe_unused, - void *ctx __maybe_unused) -{ -} - -static void print_metric_header(struct perf_stat_config *config, - void *ctx, const char *color __maybe_unused, - const char *fmt __maybe_unused, - const char *unit, double val __maybe_unused) -{ - struct outstate *os = ctx; - char tbuf[1024]; - - if (!valid_only_metric(unit)) - return; - unit = fixunit(tbuf, os->evsel, unit); - if (config->csv_output) - fprintf(os->fh, "%s%s", unit, config->csv_sep); - else - fprintf(os->fh, "%*s ", config->metric_only_len, unit); -} - -static int first_shadow_cpu(struct perf_stat_config *config, - struct perf_evsel *evsel, int id) -{ - struct perf_evlist *evlist = evsel->evlist; - int i; - - if (!config->aggr_get_id) - return 0; - - if (config->aggr_mode == AGGR_NONE) - return id; - - if (config->aggr_mode == AGGR_GLOBAL) - return 0; - - for (i = 0; i < perf_evsel__nr_cpus(evsel); i++) { - int cpu2 = perf_evsel__cpus(evsel)->map[i]; - - if (config->aggr_get_id(config, evlist->cpus, cpu2) == id) - return cpu2; - } - return 0; -} - -static void abs_printout(struct perf_stat_config *config, - int id, int nr, struct perf_evsel *evsel, double avg) -{ - FILE *output = config->output; - double sc = evsel->scale; - const char *fmt; - - if (config->csv_output) { - fmt = floor(sc) != sc ? "%.2f%s" : "%.0f%s"; - } else { - if (config->big_num) - fmt = floor(sc) != sc ? "%'18.2f%s" : "%'18.0f%s"; - else - fmt = floor(sc) != sc ? "%18.2f%s" : "%18.0f%s"; - } - - aggr_printout(config, evsel, id, nr); - - fprintf(output, fmt, avg, config->csv_sep); - - if (evsel->unit) - fprintf(output, "%-*s%s", - config->csv_output ? 0 : config->unit_width, - evsel->unit, config->csv_sep); - - fprintf(output, "%-*s", config->csv_output ? 0 : 25, perf_evsel__name(evsel)); - - if (evsel->cgrp) - fprintf(output, "%s%s", config->csv_sep, evsel->cgrp->name); -} - -static bool is_mixed_hw_group(struct perf_evsel *counter) -{ - struct perf_evlist *evlist = counter->evlist; - u32 pmu_type = counter->attr.type; - struct perf_evsel *pos; - - if (counter->nr_members < 2) - return false; - - evlist__for_each_entry(evlist, pos) { - /* software events can be part of any hardware group */ - if (pos->attr.type == PERF_TYPE_SOFTWARE) - continue; - if (pmu_type == PERF_TYPE_SOFTWARE) { - pmu_type = pos->attr.type; - continue; - } - if (pmu_type != pos->attr.type) - return true; - } - - return false; -} - -static void printout(struct perf_stat_config *config, int id, int nr, - struct perf_evsel *counter, double uval, - char *prefix, u64 run, u64 ena, double noise, - struct runtime_stat *st) -{ - struct perf_stat_output_ctx out; - struct outstate os = { - .fh = config->output, - .prefix = prefix ? prefix : "", - .id = id, - .nr = nr, - .evsel = counter, - }; - print_metric_t pm = print_metric_std; - new_line_t nl; - - if (config->metric_only) { - nl = new_line_metric; - if (config->csv_output) - pm = print_metric_only_csv; - else - pm = print_metric_only; - } else - nl = new_line_std; - - if (config->csv_output && !config->metric_only) { - static int aggr_fields[] = { - [AGGR_GLOBAL] = 0, - [AGGR_THREAD] = 1, - [AGGR_NONE] = 1, - [AGGR_SOCKET] = 2, - [AGGR_CORE] = 2, - }; - - pm = print_metric_csv; - nl = new_line_csv; - os.nfields = 3; - os.nfields += aggr_fields[config->aggr_mode]; - if (counter->cgrp) - os.nfields++; - } - if (run == 0 || ena == 0 || counter->counts->scaled == -1) { - if (config->metric_only) { - pm(config, &os, NULL, "", "", 0); - return; - } - aggr_printout(config, counter, id, nr); - - fprintf(config->output, "%*s%s", - config->csv_output ? 0 : 18, - counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, - config->csv_sep); - - if (counter->supported) { - config->print_free_counters_hint = 1; - if (is_mixed_hw_group(counter)) - config->print_mixed_hw_group_error = 1; - } - - fprintf(config->output, "%-*s%s", - config->csv_output ? 0 : config->unit_width, - counter->unit, config->csv_sep); - - fprintf(config->output, "%*s", - config->csv_output ? 0 : -25, - perf_evsel__name(counter)); - - if (counter->cgrp) - fprintf(config->output, "%s%s", - config->csv_sep, counter->cgrp->name); - - if (!config->csv_output) - pm(config, &os, NULL, NULL, "", 0); - print_noise(config, counter, noise); - print_running(config, run, ena); - if (config->csv_output) - pm(config, &os, NULL, NULL, "", 0); - return; - } - - if (!config->metric_only) - abs_printout(config, id, nr, counter, uval); - - out.print_metric = pm; - out.new_line = nl; - out.ctx = &os; - out.force_header = false; - - if (config->csv_output && !config->metric_only) { - print_noise(config, counter, noise); - print_running(config, run, ena); - } - - perf_stat__print_shadow_stats(config, counter, uval, - first_shadow_cpu(config, counter, id), - &out, &config->metric_events, st); - if (!config->csv_output && !config->metric_only) { - print_noise(config, counter, noise); - print_running(config, run, ena); - } -} - -static void aggr_update_shadow(struct perf_stat_config *config, - struct perf_evlist *evlist) -{ - int cpu, s2, id, s; - u64 val; - struct perf_evsel *counter; - - for (s = 0; s < config->aggr_map->nr; s++) { - id = config->aggr_map->map[s]; - evlist__for_each_entry(evlist, counter) { - val = 0; - for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { - s2 = config->aggr_get_id(config, evlist->cpus, cpu); - if (s2 != id) - continue; - val += perf_counts(counter->counts, cpu, 0)->val; - } - perf_stat__update_shadow_stats(counter, val, - first_shadow_cpu(config, counter, id), - &rt_stat); - } - } -} - -static void uniquify_event_name(struct perf_evsel *counter) -{ - char *new_name; - char *config; - - if (counter->uniquified_name || - !counter->pmu_name || !strncmp(counter->name, counter->pmu_name, - strlen(counter->pmu_name))) - return; - - config = strchr(counter->name, '/'); - if (config) { - if (asprintf(&new_name, - "%s%s", counter->pmu_name, config) > 0) { - free(counter->name); - counter->name = new_name; - } - } else { - if (asprintf(&new_name, - "%s [%s]", counter->name, counter->pmu_name) > 0) { - free(counter->name); - counter->name = new_name; - } - } - - counter->uniquified_name = true; -} - -static void collect_all_aliases(struct perf_stat_config *config, struct perf_evsel *counter, - void (*cb)(struct perf_stat_config *config, struct perf_evsel *counter, void *data, - bool first), - void *data) -{ - struct perf_evlist *evlist = counter->evlist; - struct perf_evsel *alias; - - alias = list_prepare_entry(counter, &(evlist->entries), node); - list_for_each_entry_continue (alias, &evlist->entries, node) { - if (strcmp(perf_evsel__name(alias), perf_evsel__name(counter)) || - alias->scale != counter->scale || - alias->cgrp != counter->cgrp || - strcmp(alias->unit, counter->unit) || - perf_evsel__is_clock(alias) != perf_evsel__is_clock(counter)) - break; - alias->merged_stat = true; - cb(config, alias, data, false); - } -} - -static bool collect_data(struct perf_stat_config *config, struct perf_evsel *counter, - void (*cb)(struct perf_stat_config *config, struct perf_evsel *counter, void *data, - bool first), - void *data) -{ - if (counter->merged_stat) - return false; - cb(config, counter, data, true); - if (config->no_merge) - uniquify_event_name(counter); - else if (counter->auto_merge_stats) - collect_all_aliases(config, counter, cb, data); - return true; -} - -struct aggr_data { - u64 ena, run, val; - int id; - int nr; - int cpu; -}; - -static void aggr_cb(struct perf_stat_config *config, - struct perf_evsel *counter, void *data, bool first) -{ - struct aggr_data *ad = data; - int cpu, s2; - - for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { - struct perf_counts_values *counts; - - s2 = config->aggr_get_id(config, perf_evsel__cpus(counter), cpu); - if (s2 != ad->id) - continue; - if (first) - ad->nr++; - counts = perf_counts(counter->counts, cpu, 0); - /* - * When any result is bad, make them all to give - * consistent output in interval mode. - */ - if (counts->ena == 0 || counts->run == 0 || - counter->counts->scaled == -1) { - ad->ena = 0; - ad->run = 0; - break; - } - ad->val += counts->val; - ad->ena += counts->ena; - ad->run += counts->run; - } -} - -static void print_aggr(struct perf_stat_config *config, - struct perf_evlist *evlist, - char *prefix) -{ - bool metric_only = config->metric_only; - FILE *output = config->output; - struct perf_evsel *counter; - int s, id, nr; - double uval; - u64 ena, run, val; - bool first; - - if (!(config->aggr_map || config->aggr_get_id)) - return; - - aggr_update_shadow(config, evlist); - - /* - * With metric_only everything is on a single line. - * Without each counter has its own line. - */ - for (s = 0; s < config->aggr_map->nr; s++) { - struct aggr_data ad; - if (prefix && metric_only) - fprintf(output, "%s", prefix); - - ad.id = id = config->aggr_map->map[s]; - first = true; - evlist__for_each_entry(evlist, counter) { - if (is_duration_time(counter)) - continue; - - ad.val = ad.ena = ad.run = 0; - ad.nr = 0; - if (!collect_data(config, counter, aggr_cb, &ad)) - continue; - nr = ad.nr; - ena = ad.ena; - run = ad.run; - val = ad.val; - if (first && metric_only) { - first = false; - aggr_printout(config, counter, id, nr); - } - if (prefix && !metric_only) - fprintf(output, "%s", prefix); - - uval = val * counter->scale; - printout(config, id, nr, counter, uval, prefix, - run, ena, 1.0, &rt_stat); - if (!metric_only) - fputc('\n', output); - } - if (metric_only) - fputc('\n', output); - } -} - -static int cmp_val(const void *a, const void *b) -{ - return ((struct perf_aggr_thread_value *)b)->val - - ((struct perf_aggr_thread_value *)a)->val; -} - -static struct perf_aggr_thread_value *sort_aggr_thread( - struct perf_evsel *counter, - int nthreads, int ncpus, - int *ret, - struct target *_target) -{ - int cpu, thread, i = 0; - double uval; - struct perf_aggr_thread_value *buf; - - buf = calloc(nthreads, sizeof(struct perf_aggr_thread_value)); - if (!buf) - return NULL; - - for (thread = 0; thread < nthreads; thread++) { - u64 ena = 0, run = 0, val = 0; - - for (cpu = 0; cpu < ncpus; cpu++) { - val += perf_counts(counter->counts, cpu, thread)->val; - ena += perf_counts(counter->counts, cpu, thread)->ena; - run += perf_counts(counter->counts, cpu, thread)->run; - } - - uval = val * counter->scale; - - /* - * Skip value 0 when enabling --per-thread globally, - * otherwise too many 0 output. - */ - if (uval == 0.0 && target__has_per_thread(_target)) - continue; - - buf[i].counter = counter; - buf[i].id = thread; - buf[i].uval = uval; - buf[i].val = val; - buf[i].run = run; - buf[i].ena = ena; - i++; - } - - qsort(buf, i, sizeof(struct perf_aggr_thread_value), cmp_val); - - if (ret) - *ret = i; - - return buf; -} - -static void print_aggr_thread(struct perf_stat_config *config, - struct target *_target, - struct perf_evsel *counter, char *prefix) -{ - FILE *output = config->output; - int nthreads = thread_map__nr(counter->threads); - int ncpus = cpu_map__nr(counter->cpus); - int thread, sorted_threads, id; - struct perf_aggr_thread_value *buf; - - buf = sort_aggr_thread(counter, nthreads, ncpus, &sorted_threads, _target); - if (!buf) { - perror("cannot sort aggr thread"); - return; - } - - for (thread = 0; thread < sorted_threads; thread++) { - if (prefix) - fprintf(output, "%s", prefix); - - id = buf[thread].id; - if (config->stats) - printout(config, id, 0, buf[thread].counter, buf[thread].uval, - prefix, buf[thread].run, buf[thread].ena, 1.0, - &config->stats[id]); - else - printout(config, id, 0, buf[thread].counter, buf[thread].uval, - prefix, buf[thread].run, buf[thread].ena, 1.0, - &rt_stat); - fputc('\n', output); - } - - free(buf); -} - -struct caggr_data { - double avg, avg_enabled, avg_running; -}; - -static void counter_aggr_cb(struct perf_stat_config *config __maybe_unused, - struct perf_evsel *counter, void *data, - bool first __maybe_unused) -{ - struct caggr_data *cd = data; - struct perf_stat_evsel *ps = counter->stats; - - cd->avg += avg_stats(&ps->res_stats[0]); - cd->avg_enabled += avg_stats(&ps->res_stats[1]); - cd->avg_running += avg_stats(&ps->res_stats[2]); -} - -/* - * Print out the results of a single counter: - * aggregated counts in system-wide mode - */ -static void print_counter_aggr(struct perf_stat_config *config, - struct perf_evsel *counter, char *prefix) -{ - bool metric_only = config->metric_only; - FILE *output = config->output; - double uval; - struct caggr_data cd = { .avg = 0.0 }; - - if (!collect_data(config, counter, counter_aggr_cb, &cd)) - return; - - if (prefix && !metric_only) - fprintf(output, "%s", prefix); - - uval = cd.avg * counter->scale; - printout(config, -1, 0, counter, uval, prefix, cd.avg_running, cd.avg_enabled, - cd.avg, &rt_stat); - if (!metric_only) - fprintf(output, "\n"); -} - -static void counter_cb(struct perf_stat_config *config __maybe_unused, - struct perf_evsel *counter, void *data, - bool first __maybe_unused) -{ - struct aggr_data *ad = data; - - ad->val += perf_counts(counter->counts, ad->cpu, 0)->val; - ad->ena += perf_counts(counter->counts, ad->cpu, 0)->ena; - ad->run += perf_counts(counter->counts, ad->cpu, 0)->run; -} - -/* - * Print out the results of a single counter: - * does not use aggregated count in system-wide - */ -static void print_counter(struct perf_stat_config *config, - struct perf_evsel *counter, char *prefix) -{ - FILE *output = config->output; - u64 ena, run, val; - double uval; - int cpu; - - for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { - struct aggr_data ad = { .cpu = cpu }; - - if (!collect_data(config, counter, counter_cb, &ad)) - return; - val = ad.val; - ena = ad.ena; - run = ad.run; - - if (prefix) - fprintf(output, "%s", prefix); - - uval = val * counter->scale; - printout(config, cpu, 0, counter, uval, prefix, run, ena, 1.0, - &rt_stat); - - fputc('\n', output); - } -} - -static void print_no_aggr_metric(struct perf_stat_config *config, - struct perf_evlist *evlist, - char *prefix) -{ - int cpu; - int nrcpus = 0; - struct perf_evsel *counter; - u64 ena, run, val; - double uval; - - nrcpus = evlist->cpus->nr; - for (cpu = 0; cpu < nrcpus; cpu++) { - bool first = true; - - if (prefix) - fputs(prefix, config->output); - evlist__for_each_entry(evlist, counter) { - if (is_duration_time(counter)) - continue; - if (first) { - aggr_printout(config, counter, cpu, 0); - first = false; - } - val = perf_counts(counter->counts, cpu, 0)->val; - ena = perf_counts(counter->counts, cpu, 0)->ena; - run = perf_counts(counter->counts, cpu, 0)->run; - - uval = val * counter->scale; - printout(config, cpu, 0, counter, uval, prefix, run, ena, 1.0, - &rt_stat); - } - fputc('\n', config->output); - } -} - -static int aggr_header_lens[] = { - [AGGR_CORE] = 18, - [AGGR_SOCKET] = 12, - [AGGR_NONE] = 6, - [AGGR_THREAD] = 24, - [AGGR_GLOBAL] = 0, -}; - -static const char *aggr_header_csv[] = { - [AGGR_CORE] = "core,cpus,", - [AGGR_SOCKET] = "socket,cpus", - [AGGR_NONE] = "cpu,", - [AGGR_THREAD] = "comm-pid,", - [AGGR_GLOBAL] = "" -}; - -static void print_metric_headers(struct perf_stat_config *config, - struct perf_evlist *evlist, - const char *prefix, bool no_indent) -{ - struct perf_stat_output_ctx out; - struct perf_evsel *counter; - struct outstate os = { - .fh = config->output - }; - - if (prefix) - fprintf(config->output, "%s", prefix); - - if (!config->csv_output && !no_indent) - fprintf(config->output, "%*s", - aggr_header_lens[config->aggr_mode], ""); - if (config->csv_output) { - if (config->interval) - fputs("time,", config->output); - fputs(aggr_header_csv[config->aggr_mode], config->output); - } - - /* Print metrics headers only */ - evlist__for_each_entry(evlist, counter) { - if (is_duration_time(counter)) - continue; - os.evsel = counter; - out.ctx = &os; - out.print_metric = print_metric_header; - out.new_line = new_line_metric; - out.force_header = true; - os.evsel = counter; - perf_stat__print_shadow_stats(config, counter, 0, - 0, - &out, - &config->metric_events, - &rt_stat); - } - fputc('\n', config->output); -} - -static void print_interval(struct perf_stat_config *config, - struct perf_evlist *evlist, - char *prefix, struct timespec *ts) -{ - bool metric_only = config->metric_only; - unsigned int unit_width = config->unit_width; - FILE *output = config->output; - static int num_print_interval; - - if (config->interval_clear) - puts(CONSOLE_CLEAR); - - sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, config->csv_sep); - - if ((num_print_interval == 0 && !config->csv_output) || config->interval_clear) { - switch (config->aggr_mode) { - case AGGR_SOCKET: - fprintf(output, "# time socket cpus"); - if (!metric_only) - fprintf(output, " counts %*s events\n", unit_width, "unit"); - break; - case AGGR_CORE: - fprintf(output, "# time core cpus"); - if (!metric_only) - fprintf(output, " counts %*s events\n", unit_width, "unit"); - break; - case AGGR_NONE: - fprintf(output, "# time CPU "); - if (!metric_only) - fprintf(output, " counts %*s events\n", unit_width, "unit"); - break; - case AGGR_THREAD: - fprintf(output, "# time comm-pid"); - if (!metric_only) - fprintf(output, " counts %*s events\n", unit_width, "unit"); - break; - case AGGR_GLOBAL: - default: - fprintf(output, "# time"); - if (!metric_only) - fprintf(output, " counts %*s events\n", unit_width, "unit"); - case AGGR_UNSET: - break; - } - } - - if ((num_print_interval == 0 || config->interval_clear) && metric_only) - print_metric_headers(config, evlist, " ", true); - if (++num_print_interval == 25) - num_print_interval = 0; -} - -static void print_header(struct perf_stat_config *config, - struct target *_target, - int argc, const char **argv) -{ - FILE *output = config->output; - int i; - - fflush(stdout); - - if (!config->csv_output) { - fprintf(output, "\n"); - fprintf(output, " Performance counter stats for "); - if (_target->system_wide) - fprintf(output, "\'system wide"); - else if (_target->cpu_list) - fprintf(output, "\'CPU(s) %s", _target->cpu_list); - else if (!target__has_task(_target)) { - fprintf(output, "\'%s", argv ? argv[0] : "pipe"); - for (i = 1; argv && (i < argc); i++) - fprintf(output, " %s", argv[i]); - } else if (_target->pid) - fprintf(output, "process id \'%s", _target->pid); - else - fprintf(output, "thread id \'%s", _target->tid); - - fprintf(output, "\'"); - if (config->run_count > 1) - fprintf(output, " (%d runs)", config->run_count); - fprintf(output, ":\n\n"); - } -} - -static int get_precision(double num) -{ - if (num > 1) - return 0; - - return lround(ceil(-log10(num))); -} - -static void print_table(struct perf_stat_config *config, - FILE *output, int precision, double avg) -{ - char tmp[64]; - int idx, indent = 0; - - scnprintf(tmp, 64, " %17.*f", precision, avg); - while (tmp[indent] == ' ') - indent++; - - fprintf(output, "%*s# Table of individual measurements:\n", indent, ""); - - for (idx = 0; idx < config->run_count; idx++) { - double run = (double) config->walltime_run[idx] / NSEC_PER_SEC; - int h, n = 1 + abs((int) (100.0 * (run - avg)/run) / 5); - - fprintf(output, " %17.*f (%+.*f) ", - precision, run, precision, run - avg); - - for (h = 0; h < n; h++) - fprintf(output, "#"); - - fprintf(output, "\n"); - } - - fprintf(output, "\n%*s# Final result:\n", indent, ""); -} - -static double timeval2double(struct timeval *t) -{ - return t->tv_sec + (double) t->tv_usec/USEC_PER_SEC; -} - -static void print_footer(struct perf_stat_config *config) -{ - double avg = avg_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC; - FILE *output = config->output; - int n; - - if (!config->null_run) - fprintf(output, "\n"); - - if (config->run_count == 1) { - fprintf(output, " %17.9f seconds time elapsed", avg); - - if (config->ru_display) { - double ru_utime = timeval2double(&config->ru_data.ru_utime); - double ru_stime = timeval2double(&config->ru_data.ru_stime); - - fprintf(output, "\n\n"); - fprintf(output, " %17.9f seconds user\n", ru_utime); - fprintf(output, " %17.9f seconds sys\n", ru_stime); - } - } else { - double sd = stddev_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC; - /* - * Display at most 2 more significant - * digits than the stddev inaccuracy. - */ - int precision = get_precision(sd) + 2; - - if (config->walltime_run_table) - print_table(config, output, precision, avg); - - fprintf(output, " %17.*f +- %.*f seconds time elapsed", - precision, avg, precision, sd); - - print_noise_pct(config, sd, avg); - } - fprintf(output, "\n\n"); - - if (config->print_free_counters_hint && - sysctl__read_int("kernel/nmi_watchdog", &n) >= 0 && - n > 0) - fprintf(output, -"Some events weren't counted. Try disabling the NMI watchdog:\n" -" echo 0 > /proc/sys/kernel/nmi_watchdog\n" -" perf stat ...\n" -" echo 1 > /proc/sys/kernel/nmi_watchdog\n"); - - if (config->print_mixed_hw_group_error) - fprintf(output, - "The events in group usually have to be from " - "the same PMU. Try reorganizing the group.\n"); -} - -static void -perf_evlist__print_counters(struct perf_evlist *evlist, - struct perf_stat_config *config, - struct target *_target, - struct timespec *ts, - int argc, const char **argv) -{ - bool metric_only = config->metric_only; - int interval = config->interval; - struct perf_evsel *counter; - char buf[64], *prefix = NULL; - - if (interval) - print_interval(config, evlist, prefix = buf, ts); - else - print_header(config, _target, argc, argv); - - if (metric_only) { - static int num_print_iv; - - if (num_print_iv == 0 && !interval) - print_metric_headers(config, evlist, prefix, false); - if (num_print_iv++ == 25) - num_print_iv = 0; - if (config->aggr_mode == AGGR_GLOBAL && prefix) - fprintf(config->output, "%s", prefix); - } - - switch (config->aggr_mode) { - case AGGR_CORE: - case AGGR_SOCKET: - print_aggr(config, evlist, prefix); - break; - case AGGR_THREAD: - evlist__for_each_entry(evlist, counter) { - if (is_duration_time(counter)) - continue; - print_aggr_thread(config, _target, counter, prefix); - } - break; - case AGGR_GLOBAL: - evlist__for_each_entry(evlist, counter) { - if (is_duration_time(counter)) - continue; - print_counter_aggr(config, counter, prefix); - } - if (metric_only) - fputc('\n', config->output); - break; - case AGGR_NONE: - if (metric_only) - print_no_aggr_metric(config, evlist, prefix); - else { - evlist__for_each_entry(evlist, counter) { - if (is_duration_time(counter)) - continue; - print_counter(config, counter, prefix); - } - } - break; - case AGGR_UNSET: - default: - break; - } - - if (!interval && !config->csv_output) - print_footer(config); - - fflush(config->output); -} - static void print_counters(struct timespec *ts, int argc, const char **argv) { /* Do not print anything if we record to the pipe. */ |