diff options
| -rw-r--r-- | tools/perf/builtin-script.c | 252 |
1 files changed, 230 insertions, 22 deletions
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index d813adbf9889..8bab5b264f61 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -33,6 +33,7 @@ #include "util/path.h" #include "util/event.h" #include "util/mem-info.h" +#include "util/metricgroup.h" #include "ui/ui.h" #include "print_binary.h" #include "print_insn.h" @@ -341,9 +342,6 @@ struct evsel_script { char *filename; FILE *fp; u64 samples; - /* For metric output */ - u64 val; - int gnum; }; static inline struct evsel_script *evsel_script(struct evsel *evsel) @@ -2132,13 +2130,161 @@ static void script_new_line(struct perf_stat_config *config __maybe_unused, fputs("\tmetric: ", mctx->fp); } -static void perf_sample__fprint_metric(struct perf_script *script, - struct thread *thread, +struct script_find_metrics_args { + struct evlist *evlist; + bool system_wide; +}; + +static struct evsel *map_metric_evsel_to_script_evsel(struct evlist *script_evlist, + struct evsel *metric_evsel) +{ + struct evsel *script_evsel; + + evlist__for_each_entry(script_evlist, script_evsel) { + /* Skip if perf_event_attr differ. */ + if (metric_evsel->core.attr.type != script_evsel->core.attr.type) + continue; + if (metric_evsel->core.attr.config != script_evsel->core.attr.config) + continue; + /* Skip if the script event has a metric_id that doesn't match. */ + if (script_evsel->metric_id && + strcmp(evsel__metric_id(metric_evsel), evsel__metric_id(script_evsel))) { + pr_debug("Skipping matching evsel due to differing metric ids '%s' vs '%s'\n", + evsel__metric_id(metric_evsel), evsel__metric_id(script_evsel)); + continue; + } + return script_evsel; + } + return NULL; +} + +static int script_find_metrics(const struct pmu_metric *pm, + const struct pmu_metrics_table *table __maybe_unused, + void *data) +{ + struct script_find_metrics_args *args = data; + struct evlist *script_evlist = args->evlist; + struct evlist *metric_evlist = evlist__new(); + struct evsel *metric_evsel; + int ret = metricgroup__parse_groups(metric_evlist, + /*pmu=*/"all", + pm->metric_name, + /*metric_no_group=*/false, + /*metric_no_merge=*/false, + /*metric_no_threshold=*/true, + /*user_requested_cpu_list=*/NULL, + args->system_wide, + /*hardware_aware_grouping=*/false); + + if (ret) { + /* Metric parsing failed but continue the search. */ + goto out; + } + + /* + * Check the script_evlist has an entry for each metric_evlist entry. If + * the script evsel was already set up avoid changing data that may + * break it. + */ + evlist__for_each_entry(metric_evlist, metric_evsel) { + struct evsel *script_evsel = + map_metric_evsel_to_script_evsel(script_evlist, metric_evsel); + struct evsel *new_metric_leader; + + if (!script_evsel) { + pr_debug("Skipping metric '%s' as evsel '%s' / '%s' is missing\n", + pm->metric_name, evsel__name(metric_evsel), + evsel__metric_id(metric_evsel)); + goto out; + } + + if (script_evsel->metric_leader == NULL) + continue; + + if (metric_evsel->metric_leader == metric_evsel) { + new_metric_leader = script_evsel; + } else { + new_metric_leader = + map_metric_evsel_to_script_evsel(script_evlist, + metric_evsel->metric_leader); + } + /* Mismatching evsel leaders. */ + if (script_evsel->metric_leader != new_metric_leader) { + pr_debug("Skipping metric '%s' due to mismatching evsel metric leaders '%s' vs '%s'\n", + pm->metric_name, evsel__metric_id(metric_evsel), + evsel__metric_id(script_evsel)); + goto out; + } + } + /* + * Metric events match those in the script evlist, copy metric evsel + * data into the script evlist. + */ + evlist__for_each_entry(metric_evlist, metric_evsel) { + struct evsel *script_evsel = + map_metric_evsel_to_script_evsel(script_evlist, metric_evsel); + struct metric_event *metric_me = metricgroup__lookup(&metric_evlist->metric_events, + metric_evsel, + /*create=*/false); + + if (script_evsel->metric_id == NULL) { + script_evsel->metric_id = metric_evsel->metric_id; + metric_evsel->metric_id = NULL; + } + + if (script_evsel->metric_leader == NULL) { + if (metric_evsel->metric_leader == metric_evsel) { + script_evsel->metric_leader = script_evsel; + } else { + script_evsel->metric_leader = + map_metric_evsel_to_script_evsel(script_evlist, + metric_evsel->metric_leader); + } + } + + if (metric_me) { + struct metric_expr *expr; + struct metric_event *script_me = + metricgroup__lookup(&script_evlist->metric_events, + script_evsel, + /*create=*/true); + + if (!script_me) { + /* + * As the metric_expr is created, the only + * failure is a lack of memory. + */ + goto out; + } + list_splice_init(&metric_me->head, &script_me->head); + list_for_each_entry(expr, &script_me->head, nd) { + for (int i = 0; expr->metric_events[i]; i++) { + expr->metric_events[i] = + map_metric_evsel_to_script_evsel(script_evlist, + expr->metric_events[i]); + } + } + } + } + pr_debug("Found metric '%s' whose evsels match those of in the perf data\n", + pm->metric_name); + evlist__delete(metric_evlist); +out: + return 0; +} + +static struct aggr_cpu_id script_aggr_cpu_id_get(struct perf_stat_config *config __maybe_unused, + struct perf_cpu cpu) +{ + return aggr_cpu_id__global(cpu, /*data=*/NULL); +} + +static void perf_sample__fprint_metric(struct thread *thread, struct evsel *evsel, struct perf_sample *sample, FILE *fp) { - struct evsel *leader = evsel__leader(evsel); + static bool init_metrics; struct perf_stat_output_ctx ctx = { .print_metric = script_print_metric, .new_line = script_new_line, @@ -2150,23 +2296,85 @@ static void perf_sample__fprint_metric(struct perf_script *script, }, .force_header = false, }; - struct evsel *ev2; - u64 val; + struct perf_counts_values *count, *old_count; + int cpu_map_idx, thread_map_idx, aggr_idx; + struct evsel *pos; + + if (!init_metrics) { + /* One time initialization of stat_config and metric data. */ + struct script_find_metrics_args args = { + .evlist = evsel->evlist, + .system_wide = perf_thread_map__pid(evsel->core.threads, /*idx=*/0) == -1, + + }; + if (!stat_config.output) + stat_config.output = stdout; + + if (!stat_config.aggr_map) { + /* TODO: currently only global aggregation is supported. */ + assert(stat_config.aggr_mode == AGGR_GLOBAL); + stat_config.aggr_get_id = script_aggr_cpu_id_get; + stat_config.aggr_map = + cpu_aggr_map__new(evsel->evlist->core.user_requested_cpus, + aggr_cpu_id__global, /*data=*/NULL, + /*needs_sort=*/false); + } + + metricgroup__for_each_metric(pmu_metrics_table__find(), script_find_metrics, &args); + init_metrics = true; + } + + if (!evsel->stats) { + if (evlist__alloc_stats(&stat_config, evsel->evlist, /*alloc_raw=*/true) < 0) + return; + } + if (!evsel->stats->aggr) { + if (evlist__alloc_aggr_stats(evsel->evlist, stat_config.aggr_map->nr) < 0) + return; + } - if (!evsel->stats) - evlist__alloc_stats(&stat_config, script->session->evlist, /*alloc_raw=*/false); - if (evsel_script(leader)->gnum++ == 0) - perf_stat__reset_shadow_stats(); - val = sample->period * evsel->scale; - evsel_script(evsel)->val = val; - if (evsel_script(leader)->gnum == leader->core.nr_members) { - for_each_group_member (ev2, leader) { - perf_stat__print_shadow_stats(&stat_config, ev2, - evsel_script(ev2)->val, - sample->cpu, - &ctx); + /* Update the evsel's count using the sample's data. */ + cpu_map_idx = perf_cpu_map__idx(evsel->core.cpus, (struct perf_cpu){sample->cpu}); + if (cpu_map_idx < 0) { + /* Missing CPU, check for any CPU. */ + if (perf_cpu_map__cpu(evsel->core.cpus, /*idx=*/0).cpu == -1 || + sample->cpu == (u32)-1) { + /* Place the counts in the which ever CPU is first in the map. */ + cpu_map_idx = 0; + } else { + pr_info("Missing CPU map entry for CPU %d\n", sample->cpu); + return; + } + } + thread_map_idx = perf_thread_map__idx(evsel->core.threads, sample->tid); + if (thread_map_idx < 0) { + /* Missing thread, check for any thread. */ + if (perf_thread_map__pid(evsel->core.threads, /*idx=*/0) == -1 || + sample->tid == (u32)-1) { + /* Place the counts in the which ever thread is first in the map. */ + thread_map_idx = 0; + } else { + pr_info("Missing thread map entry for thread %d\n", sample->tid); + return; + } + } + count = perf_counts(evsel->counts, cpu_map_idx, thread_map_idx); + old_count = perf_counts(evsel->prev_raw_counts, cpu_map_idx, thread_map_idx); + count->val = old_count->val + sample->period; + count->run = old_count->run + 1; + count->ena = old_count->ena + 1; + + /* Update the aggregated stats. */ + perf_stat_process_counter(&stat_config, evsel); + + /* Display all metrics. */ + evlist__for_each_entry(evsel->evlist, pos) { + cpu_aggr_map__for_each_idx(aggr_idx, stat_config.aggr_map) { + perf_stat__print_shadow_stats(&stat_config, pos, + count->val, + aggr_idx, + &ctx); } - evsel_script(leader)->gnum = 0; } } @@ -2348,7 +2556,7 @@ static void process_event(struct perf_script *script, } if (PRINT_FIELD(METRIC)) - perf_sample__fprint_metric(script, thread, evsel, sample, fp); + perf_sample__fprint_metric(thread, evsel, sample, fp); if (verbose > 0) fflush(fp); |