diff options
Diffstat (limited to 'tools/perf/builtin-stat.c')
| -rw-r--r-- | tools/perf/builtin-stat.c | 199 |
1 files changed, 171 insertions, 28 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index ee7ada78d86f..0c16d20d7e32 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -59,10 +59,13 @@ #include "util/thread.h" #include "util/thread_map.h" #include "util/counts.h" +#include "util/group.h" #include "util/session.h" #include "util/tool.h" +#include "util/group.h" #include "asm/bug.h" +#include <api/fs/fs.h> #include <stdlib.h> #include <sys/prctl.h> #include <locale.h> @@ -98,6 +101,15 @@ static const char * transaction_limited_attrs = { "}" }; +static const char * topdown_attrs[] = { + "topdown-total-slots", + "topdown-slots-retired", + "topdown-recovery-bubbles", + "topdown-fetch-bubbles", + "topdown-slots-issued", + NULL, +}; + static struct perf_evlist *evsel_list; static struct target target = { @@ -112,6 +124,7 @@ static volatile pid_t child_pid = -1; static bool null_run = false; static int detailed_run = 0; static bool transaction_run; +static bool topdown_run = false; static bool big_num = true; static int big_num_opt = -1; static const char *csv_sep = NULL; @@ -124,6 +137,7 @@ static unsigned int initial_delay = 0; static unsigned int unit_width = 4; /* strlen("unit") */ static bool forever = false; static bool metric_only = false; +static bool force_metric_only = false; static struct timespec ref_time; static struct cpu_map *aggr_map; static aggr_get_id_t aggr_get_id; @@ -276,8 +290,12 @@ perf_evsel__write_stat_event(struct perf_evsel *counter, u32 cpu, u32 thread, static int read_counter(struct perf_evsel *counter) { int nthreads = thread_map__nr(evsel_list->threads); - int ncpus = perf_evsel__nr_cpus(counter); - int cpu, thread; + int ncpus, cpu, thread; + + if (target__has_cpu(&target)) + ncpus = perf_evsel__nr_cpus(counter); + else + ncpus = 1; if (!counter->supported) return -ENOENT; @@ -317,7 +335,7 @@ static void read_counters(bool close_counters) { struct perf_evsel *counter; - evlist__for_each(evsel_list, counter) { + evlist__for_each_entry(evsel_list, counter) { if (read_counter(counter)) pr_debug("failed to read counter %s\n", counter->name); @@ -403,7 +421,7 @@ static int perf_stat_synthesize_config(bool is_pipe) * Synthesize other events stuff not carried within * attr event - unit, scale, name */ - evlist__for_each(evsel_list, counter) { + evlist__for_each_entry(evsel_list, counter) { if (!counter->supported) continue; @@ -536,7 +554,7 @@ static int __run_perf_stat(int argc, const char **argv) if (group) perf_evlist__set_leader(evsel_list); - evlist__for_each(evsel_list, counter) { + evlist__for_each_entry(evsel_list, counter) { try_again: if (create_perf_stat_counter(counter) < 0) { /* @@ -582,7 +600,7 @@ try_again: if (perf_evlist__apply_filters(evsel_list, &counter)) { error("failed to set filter \"%s\" on event %s with %d (%s)\n", counter->filter, perf_evsel__name(counter), errno, - strerror_r(errno, msg, sizeof(msg))); + str_error_r(errno, msg, sizeof(msg))); return -1; } @@ -623,7 +641,7 @@ try_again: wait(&status); if (workload_exec_errno) { - const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg)); + const char *emsg = str_error_r(workload_exec_errno, msg, sizeof(msg)); pr_err("Workload failed: %s\n", emsg); return -1; } @@ -1120,7 +1138,7 @@ static void aggr_update_shadow(void) for (s = 0; s < aggr_map->nr; s++) { id = aggr_map->map[s]; - evlist__for_each(evsel_list, counter) { + evlist__for_each_entry(evsel_list, counter) { val = 0; for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { s2 = aggr_get_id(evsel_list->cpus, cpu); @@ -1159,7 +1177,7 @@ static void print_aggr(char *prefix) id = aggr_map->map[s]; first = true; - evlist__for_each(evsel_list, counter) { + evlist__for_each_entry(evsel_list, counter) { val = ena = run = 0; nr = 0; for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { @@ -1278,7 +1296,7 @@ static void print_no_aggr_metric(char *prefix) if (prefix) fputs(prefix, stat_config.output); - evlist__for_each(evsel_list, counter) { + evlist__for_each_entry(evsel_list, counter) { if (first) { aggr_printout(counter, cpu, 0); first = false; @@ -1302,7 +1320,15 @@ static int aggr_header_lens[] = { [AGGR_GLOBAL] = 0, }; -static void print_metric_headers(char *prefix) +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(const char *prefix, bool no_indent) { struct perf_stat_output_ctx out; struct perf_evsel *counter; @@ -1313,12 +1339,18 @@ static void print_metric_headers(char *prefix) if (prefix) fprintf(stat_config.output, "%s", prefix); - if (!csv_output) + if (!csv_output && !no_indent) fprintf(stat_config.output, "%*s", aggr_header_lens[stat_config.aggr_mode], ""); + if (csv_output) { + if (stat_config.interval) + fputs("time,", stat_config.output); + fputs(aggr_header_csv[stat_config.aggr_mode], + stat_config.output); + } /* Print metrics headers only */ - evlist__for_each(evsel_list, counter) { + evlist__for_each_entry(evsel_list, counter) { os.evsel = counter; out.ctx = &os; out.print_metric = print_metric_header; @@ -1338,28 +1370,40 @@ static void print_interval(char *prefix, struct timespec *ts) sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, csv_sep); - if (num_print_interval == 0 && !csv_output && !metric_only) { + if (num_print_interval == 0 && !csv_output) { switch (stat_config.aggr_mode) { case AGGR_SOCKET: - fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit"); + 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 counts %*s events\n", unit_width, "unit"); + 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 counts %*s events\n", unit_width, "unit"); + 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 counts %*s events\n", unit_width, "unit"); + 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 counts %*s events\n", unit_width, "unit"); + fprintf(output, "# time"); + if (!metric_only) + fprintf(output, " counts %*s events\n", unit_width, "unit"); case AGGR_UNSET: break; } } + if (num_print_interval == 0 && metric_only) + print_metric_headers(" ", true); if (++num_print_interval == 25) num_print_interval = 0; } @@ -1428,8 +1472,8 @@ static void print_counters(struct timespec *ts, int argc, const char **argv) if (metric_only) { static int num_print_iv; - if (num_print_iv == 0) - print_metric_headers(prefix); + if (num_print_iv == 0 && !interval) + print_metric_headers(prefix, false); if (num_print_iv++ == 25) num_print_iv = 0; if (stat_config.aggr_mode == AGGR_GLOBAL && prefix) @@ -1442,11 +1486,11 @@ static void print_counters(struct timespec *ts, int argc, const char **argv) print_aggr(prefix); break; case AGGR_THREAD: - evlist__for_each(evsel_list, counter) + evlist__for_each_entry(evsel_list, counter) print_aggr_thread(counter, prefix); break; case AGGR_GLOBAL: - evlist__for_each(evsel_list, counter) + evlist__for_each_entry(evsel_list, counter) print_counter_aggr(counter, prefix); if (metric_only) fputc('\n', stat_config.output); @@ -1455,7 +1499,7 @@ static void print_counters(struct timespec *ts, int argc, const char **argv) if (metric_only) print_no_aggr_metric(prefix); else { - evlist__for_each(evsel_list, counter) + evlist__for_each_entry(evsel_list, counter) print_counter(counter, prefix); } break; @@ -1520,6 +1564,14 @@ static int stat__set_big_num(const struct option *opt __maybe_unused, return 0; } +static int enable_metric_only(const struct option *opt __maybe_unused, + const char *s __maybe_unused, int unset) +{ + force_metric_only = true; + metric_only = !unset; + return 0; +} + static const struct option stat_options[] = { OPT_BOOLEAN('T', "transaction", &transaction_run, "hardware transaction statistics"), @@ -1578,8 +1630,10 @@ static const struct option stat_options[] = { "aggregate counts per thread", AGGR_THREAD), OPT_UINTEGER('D', "delay", &initial_delay, "ms to wait before starting measurement after program start"), - OPT_BOOLEAN(0, "metric-only", &metric_only, - "Only print computed metrics. No raw values"), + OPT_CALLBACK_NOOPT(0, "metric-only", &metric_only, NULL, + "Only print computed metrics. No raw values", enable_metric_only), + OPT_BOOLEAN(0, "topdown", &topdown_run, + "measure topdown level 1 statistics"), OPT_END() }; @@ -1772,12 +1826,62 @@ static int perf_stat_init_aggr_mode_file(struct perf_stat *st) return 0; } +static int topdown_filter_events(const char **attr, char **str, bool use_group) +{ + int off = 0; + int i; + int len = 0; + char *s; + + for (i = 0; attr[i]; i++) { + if (pmu_have_event("cpu", attr[i])) { + len += strlen(attr[i]) + 1; + attr[i - off] = attr[i]; + } else + off++; + } + attr[i - off] = NULL; + + *str = malloc(len + 1 + 2); + if (!*str) + return -1; + s = *str; + if (i - off == 0) { + *s = 0; + return 0; + } + if (use_group) + *s++ = '{'; + for (i = 0; attr[i]; i++) { + strcpy(s, attr[i]); + s += strlen(s); + *s++ = ','; + } + if (use_group) { + s[-1] = '}'; + *s = 0; + } else + s[-1] = 0; + return 0; +} + +__weak bool arch_topdown_check_group(bool *warn) +{ + *warn = false; + return false; +} + +__weak void arch_topdown_group_warn(void) +{ +} + /* * Add default attributes, if there were no attributes specified or * if -d/--detailed, -d -d or -d -d -d is used: */ static int add_default_attributes(void) { + int err; struct perf_event_attr default_attrs0[] = { { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK }, @@ -1896,7 +2000,6 @@ static int add_default_attributes(void) return 0; if (transaction_run) { - int err; if (pmu_have_event("cpu", "cycles-ct") && pmu_have_event("cpu", "el-start")) err = parse_events(evsel_list, transaction_attrs, NULL); @@ -1909,6 +2012,46 @@ static int add_default_attributes(void) return 0; } + if (topdown_run) { + char *str = NULL; + bool warn = false; + + if (stat_config.aggr_mode != AGGR_GLOBAL && + stat_config.aggr_mode != AGGR_CORE) { + pr_err("top down event configuration requires --per-core mode\n"); + return -1; + } + stat_config.aggr_mode = AGGR_CORE; + if (nr_cgroups || !target__has_cpu(&target)) { + pr_err("top down event configuration requires system-wide mode (-a)\n"); + return -1; + } + + if (!force_metric_only) + metric_only = true; + if (topdown_filter_events(topdown_attrs, &str, + arch_topdown_check_group(&warn)) < 0) { + pr_err("Out of memory\n"); + return -1; + } + if (topdown_attrs[0] && str) { + if (warn) + arch_topdown_group_warn(); + err = parse_events(evsel_list, str, NULL); + if (err) { + fprintf(stderr, + "Cannot set up top down events %s: %d\n", + str, err); + free(str); + return -1; + } + } else { + fprintf(stderr, "System does not support topdown\n"); + return -1; + } + free(str); + } + if (!evsel_list->nr_entries) { if (target__has_cpu(&target)) default_attrs0[0].config = PERF_COUNT_SW_CPU_CLOCK; @@ -2010,7 +2153,7 @@ static int process_stat_round_event(struct perf_tool *tool __maybe_unused, const char **argv = session->header.env.cmdline_argv; int argc = session->header.env.nr_cmdline; - evlist__for_each(evsel_list, counter) + evlist__for_each_entry(evsel_list, counter) perf_stat_process_counter(&stat_config, counter); if (stat_round->type == PERF_STAT_ROUND_TYPE__FINAL) |