diff options
Diffstat (limited to 'tools/perf/util/stat-display.c')
| -rw-r--r-- | tools/perf/util/stat-display.c | 1626 |
1 files changed, 1626 insertions, 0 deletions
diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c new file mode 100644 index 000000000000..6d02f84c5691 --- /dev/null +++ b/tools/perf/util/stat-display.c @@ -0,0 +1,1626 @@ +#include <stdlib.h> +#include <stdio.h> +#include <inttypes.h> +#include <linux/string.h> +#include <linux/time64.h> +#include <math.h> +#include <perf/cpumap.h> +#include "color.h" +#include "counts.h" +#include "debug.h" +#include "evlist.h" +#include "evsel.h" +#include "stat.h" +#include "top.h" +#include "thread_map.h" +#include "cpumap.h" +#include "string2.h" +#include <linux/ctype.h> +#include "cgroup.h" +#include <api/fs/fs.h> +#include "util.h" +#include "iostat.h" +#include "pmu.h" +#include "pmus.h" +#include "tool_pmu.h" + +#define CNTR_NOT_SUPPORTED "<not supported>" +#define CNTR_NOT_COUNTED "<not counted>" + +#define MGROUP_LEN 50 +#define METRIC_LEN 38 +#define EVNAME_LEN 32 +#define COUNTS_LEN 18 +#define INTERVAL_LEN 16 +#define CGROUP_LEN 16 +#define COMM_LEN 16 +#define PID_LEN 7 +#define CPUS_LEN 4 + +static int aggr_header_lens[] = { + [AGGR_CORE] = 18, + [AGGR_CACHE] = 22, + [AGGR_CLUSTER] = 20, + [AGGR_DIE] = 12, + [AGGR_SOCKET] = 6, + [AGGR_NODE] = 6, + [AGGR_NONE] = 6, + [AGGR_THREAD] = 16, + [AGGR_GLOBAL] = 0, +}; + +static const char *aggr_header_csv[] = { + [AGGR_CORE] = "core,ctrs,", + [AGGR_CACHE] = "cache,ctrs,", + [AGGR_CLUSTER] = "cluster,ctrs,", + [AGGR_DIE] = "die,ctrs,", + [AGGR_SOCKET] = "socket,ctrs,", + [AGGR_NONE] = "cpu,", + [AGGR_THREAD] = "comm-pid,", + [AGGR_NODE] = "node,", + [AGGR_GLOBAL] = "" +}; + +static const char *aggr_header_std[] = { + [AGGR_CORE] = "core", + [AGGR_CACHE] = "cache", + [AGGR_CLUSTER] = "cluster", + [AGGR_DIE] = "die", + [AGGR_SOCKET] = "socket", + [AGGR_NONE] = "cpu", + [AGGR_THREAD] = "comm-pid", + [AGGR_NODE] = "node", + [AGGR_GLOBAL] = "" +}; + +const char *metric_threshold_classify__color(enum metric_threshold_classify thresh) +{ + const char * const colors[] = { + "", /* unknown */ + PERF_COLOR_RED, /* bad */ + PERF_COLOR_MAGENTA, /* nearly bad */ + PERF_COLOR_YELLOW, /* less good */ + PERF_COLOR_GREEN, /* good */ + }; + static_assert(ARRAY_SIZE(colors) - 1 == METRIC_THRESHOLD_GOOD, "missing enum value"); + return colors[thresh]; +} + +static const char *metric_threshold_classify__str(enum metric_threshold_classify thresh) +{ + const char * const strs[] = { + "unknown", + "bad", + "nearly bad", + "less good", + "good", + }; + static_assert(ARRAY_SIZE(strs) - 1 == METRIC_THRESHOLD_GOOD, "missing enum value"); + return strs[thresh]; +} + +static void print_running_std(struct perf_stat_config *config, u64 run, u64 ena) +{ + if (run != ena) + fprintf(config->output, " (%.2f%%)", 100.0 * run / ena); +} + +static void print_running_csv(struct perf_stat_config *config, u64 run, u64 ena) +{ + double enabled_percent = 100; + + if (run != ena) + enabled_percent = 100 * run / ena; + fprintf(config->output, "%s%" PRIu64 "%s%.2f", + config->csv_sep, run, config->csv_sep, enabled_percent); +} +struct outstate { + /* Std mode: insert a newline before the next metric */ + bool newline; + /* JSON mode: track need for comma for a previous field or not */ + bool first; + /* Num CSV separators remaining to pad out when not all fields are printed */ + int csv_col_pad; + + /* + * The following don't track state across fields, but are here as a shortcut to + * pass data to the print functions. The alternative would be to update the + * function signatures of the entire print stack to pass them through. + */ + /* Place to output to */ + FILE * const fh; + /* Lines are timestamped in --interval-print mode */ + char timestamp[64]; + /* Num items aggregated in current line. See struct perf_stat_aggr.nr */ + int aggr_nr; + /* Core/socket/die etc ID for the current line */ + struct aggr_cpu_id id; + /* Event for current line */ + struct evsel *evsel; + /* Cgroup for current line */ + struct cgroup *cgrp; +}; + +static const char *json_sep(struct outstate *os) +{ + const char *sep = os->first ? "" : ", "; + + os->first = false; + return sep; +} + +#define json_out(os, format, ...) fprintf((os)->fh, "%s" format, json_sep(os), ##__VA_ARGS__) + +static void print_running_json(struct outstate *os, u64 run, u64 ena) +{ + double enabled_percent = 100; + + if (run != ena) + enabled_percent = 100 * run / ena; + json_out(os, "\"event-runtime\" : %" PRIu64 ", \"pcnt-running\" : %.2f", + run, enabled_percent); +} + +static void print_running(struct perf_stat_config *config, struct outstate *os, + u64 run, u64 ena, bool before_metric) +{ + if (config->json_output) { + if (before_metric) + print_running_json(os, run, ena); + } else if (config->csv_output) { + if (before_metric) + print_running_csv(config, run, ena); + } else { + if (!before_metric) + print_running_std(config, run, ena); + } +} + +static void print_noise_pct_std(struct perf_stat_config *config, + double pct) +{ + if (pct) + fprintf(config->output, " ( +-%6.2f%% )", pct); +} + +static void print_noise_pct_csv(struct perf_stat_config *config, + double pct) +{ + fprintf(config->output, "%s%.2f%%", config->csv_sep, pct); +} + +static void print_noise_pct_json(struct outstate *os, + double pct) +{ + json_out(os, "\"variance\" : %.2f", pct); +} + +static void print_noise_pct(struct perf_stat_config *config, struct outstate *os, + double total, double avg, bool before_metric) +{ + double pct = rel_stddev_stats(total, avg); + + if (config->json_output) { + if (before_metric) + print_noise_pct_json(os, pct); + } else if (config->csv_output) { + if (before_metric) + print_noise_pct_csv(config, pct); + } else { + if (!before_metric) + print_noise_pct_std(config, pct); + } +} + +static void print_noise(struct perf_stat_config *config, struct outstate *os, + struct evsel *evsel, double avg, bool before_metric) +{ + struct perf_stat_evsel *ps; + + if (config->run_count == 1) + return; + + ps = evsel->stats; + print_noise_pct(config, os, stddev_stats(&ps->res_stats), avg, before_metric); +} + +static void print_cgroup_std(struct perf_stat_config *config, const char *cgrp_name) +{ + fprintf(config->output, " %-*s", CGROUP_LEN, cgrp_name); +} + +static void print_cgroup_csv(struct perf_stat_config *config, const char *cgrp_name) +{ + fprintf(config->output, "%s%s", config->csv_sep, cgrp_name); +} + +static void print_cgroup_json(struct outstate *os, const char *cgrp_name) +{ + json_out(os, "\"cgroup\" : \"%s\"", cgrp_name); +} + +static void print_cgroup(struct perf_stat_config *config, struct outstate *os, + struct cgroup *cgrp) +{ + if (nr_cgroups || config->cgroup_list) { + const char *cgrp_name = cgrp ? cgrp->name : ""; + + if (config->json_output) + print_cgroup_json(os, cgrp_name); + else if (config->csv_output) + print_cgroup_csv(config, cgrp_name); + else + print_cgroup_std(config, cgrp_name); + } +} + +static void print_aggr_id_std(struct perf_stat_config *config, + struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr) +{ + FILE *output = config->output; + int idx = config->aggr_mode; + char buf[128]; + + switch (config->aggr_mode) { + case AGGR_CORE: + snprintf(buf, sizeof(buf), "S%d-D%d-C%d", id.socket, id.die, id.core); + break; + case AGGR_CACHE: + snprintf(buf, sizeof(buf), "S%d-D%d-L%d-ID%d", + id.socket, id.die, id.cache_lvl, id.cache); + break; + case AGGR_CLUSTER: + snprintf(buf, sizeof(buf), "S%d-D%d-CLS%d", id.socket, id.die, id.cluster); + break; + case AGGR_DIE: + snprintf(buf, sizeof(buf), "S%d-D%d", id.socket, id.die); + break; + case AGGR_SOCKET: + snprintf(buf, sizeof(buf), "S%d", id.socket); + break; + case AGGR_NODE: + snprintf(buf, sizeof(buf), "N%d", id.node); + break; + case AGGR_NONE: + if (evsel->percore && !config->percore_show_thread) { + snprintf(buf, sizeof(buf), "S%d-D%d-C%d ", + id.socket, id.die, id.core); + fprintf(output, "%-*s ", + aggr_header_lens[AGGR_CORE], buf); + } else if (id.cpu.cpu > -1) { + fprintf(output, "CPU%-*d ", + aggr_header_lens[AGGR_NONE] - 3, id.cpu.cpu); + } + return; + case AGGR_THREAD: + fprintf(output, "%*s-%-*d ", + COMM_LEN, perf_thread_map__comm(evsel->core.threads, id.thread_idx), + PID_LEN, perf_thread_map__pid(evsel->core.threads, id.thread_idx)); + return; + case AGGR_GLOBAL: + case AGGR_UNSET: + case AGGR_MAX: + default: + return; + } + + fprintf(output, "%-*s %*d ", aggr_header_lens[idx], buf, /*strlen("ctrs")*/ 4, aggr_nr); +} + +static void print_aggr_id_csv(struct perf_stat_config *config, + struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr) +{ + FILE *output = config->output; + const char *sep = config->csv_sep; + + switch (config->aggr_mode) { + case AGGR_CORE: + fprintf(output, "S%d-D%d-C%d%s%d%s", + id.socket, id.die, id.core, sep, aggr_nr, sep); + break; + case AGGR_CACHE: + fprintf(config->output, "S%d-D%d-L%d-ID%d%s%d%s", + id.socket, id.die, id.cache_lvl, id.cache, sep, aggr_nr, sep); + break; + case AGGR_CLUSTER: + fprintf(config->output, "S%d-D%d-CLS%d%s%d%s", + id.socket, id.die, id.cluster, sep, aggr_nr, sep); + break; + case AGGR_DIE: + fprintf(output, "S%d-D%d%s%d%s", + id.socket, id.die, sep, aggr_nr, sep); + break; + case AGGR_SOCKET: + fprintf(output, "S%d%s%d%s", + id.socket, sep, aggr_nr, sep); + break; + case AGGR_NODE: + fprintf(output, "N%d%s%d%s", + id.node, sep, aggr_nr, sep); + break; + case AGGR_NONE: + if (evsel->percore && !config->percore_show_thread) { + fprintf(output, "S%d-D%d-C%d%s", + id.socket, id.die, id.core, sep); + } else if (id.cpu.cpu > -1) { + fprintf(output, "CPU%d%s", + id.cpu.cpu, sep); + } + break; + case AGGR_THREAD: + fprintf(output, "%s-%d%s", + perf_thread_map__comm(evsel->core.threads, id.thread_idx), + perf_thread_map__pid(evsel->core.threads, id.thread_idx), + sep); + break; + case AGGR_GLOBAL: + case AGGR_UNSET: + case AGGR_MAX: + default: + break; + } +} + +static void print_aggr_id_json(struct perf_stat_config *config, struct outstate *os, + struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr) +{ + switch (config->aggr_mode) { + case AGGR_CORE: + json_out(os, "\"core\" : \"S%d-D%d-C%d\", \"counters\" : %d", + id.socket, id.die, id.core, aggr_nr); + break; + case AGGR_CACHE: + json_out(os, "\"cache\" : \"S%d-D%d-L%d-ID%d\", \"counters\" : %d", + id.socket, id.die, id.cache_lvl, id.cache, aggr_nr); + break; + case AGGR_CLUSTER: + json_out(os, "\"cluster\" : \"S%d-D%d-CLS%d\", \"counters\" : %d", + id.socket, id.die, id.cluster, aggr_nr); + break; + case AGGR_DIE: + json_out(os, "\"die\" : \"S%d-D%d\", \"counters\" : %d", + id.socket, id.die, aggr_nr); + break; + case AGGR_SOCKET: + json_out(os, "\"socket\" : \"S%d\", \"counters\" : %d", + id.socket, aggr_nr); + break; + case AGGR_NODE: + json_out(os, "\"node\" : \"N%d\", \"counters\" : %d", + id.node, aggr_nr); + break; + case AGGR_NONE: + if (evsel->percore && !config->percore_show_thread) { + json_out(os, "\"core\" : \"S%d-D%d-C%d\"", + id.socket, id.die, id.core); + } else if (id.cpu.cpu > -1) { + json_out(os, "\"cpu\" : \"%d\"", + id.cpu.cpu); + } + break; + case AGGR_THREAD: + json_out(os, "\"thread\" : \"%s-%d\"", + perf_thread_map__comm(evsel->core.threads, id.thread_idx), + perf_thread_map__pid(evsel->core.threads, id.thread_idx)); + break; + case AGGR_GLOBAL: + case AGGR_UNSET: + case AGGR_MAX: + default: + break; + } +} + +static void aggr_printout(struct perf_stat_config *config, struct outstate *os, + struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr) +{ + if (config->json_output) + print_aggr_id_json(config, os, evsel, id, aggr_nr); + else if (config->csv_output) + print_aggr_id_csv(config, evsel, id, aggr_nr); + else + print_aggr_id_std(config, evsel, id, aggr_nr); +} + +static void new_line_std(struct perf_stat_config *config __maybe_unused, + void *ctx) +{ + struct outstate *os = ctx; + + os->newline = true; +} + +static inline void __new_line_std_csv(struct perf_stat_config *config, + struct outstate *os) +{ + fputc('\n', os->fh); + if (config->interval) + fputs(os->timestamp, os->fh); + aggr_printout(config, os, os->evsel, os->id, os->aggr_nr); +} + +static inline void __new_line_std(struct perf_stat_config *config, struct outstate *os) +{ + fprintf(os->fh, "%*s", COUNTS_LEN + EVNAME_LEN + config->unit_width + 2, ""); +} + +static void do_new_line_std(struct perf_stat_config *config, + struct outstate *os) +{ + __new_line_std_csv(config, os); + if (config->aggr_mode == AGGR_NONE) + fprintf(os->fh, " "); + __new_line_std(config, os); +} + +static void print_metric_std(struct perf_stat_config *config, + void *ctx, enum metric_threshold_classify thresh, + const char *fmt, const char *unit, double val) +{ + struct outstate *os = ctx; + FILE *out = os->fh; + int n; + bool newline = os->newline; + const char *color = metric_threshold_classify__color(thresh); + + 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; + + __new_line_std_csv(config, os); + for (i = 0; i < os->csv_col_pad; i++) + fputs(config->csv_sep, os->fh); +} + +static void print_metric_csv(struct perf_stat_config *config __maybe_unused, + void *ctx, + enum metric_threshold_classify thresh __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 = skip_spaces(buf); + while (isdigit(*ends) || *ends == '.') + ends++; + *ends = 0; + fprintf(out, "%s%s%s%s", config->csv_sep, vals, config->csv_sep, skip_spaces(unit)); +} + +static void print_metric_json(struct perf_stat_config *config __maybe_unused, + void *ctx, + enum metric_threshold_classify thresh, + const char *fmt __maybe_unused, + const char *unit, double val) +{ + struct outstate *os = ctx; + FILE *out = os->fh; + + if (unit) { + json_out(os, "\"metric-value\" : \"%f\", \"metric-unit\" : \"%s\"", val, unit); + if (thresh != METRIC_THRESHOLD_UNKNOWN) { + json_out(os, "\"metric-threshold\" : \"%s\"", + metric_threshold_classify__str(thresh)); + } + } + if (!config->metric_only) + fprintf(out, "}"); +} + +static void new_line_json(struct perf_stat_config *config, void *ctx) +{ + struct outstate *os = ctx; + + fputs("\n{", os->fh); + os->first = true; + if (config->interval) + json_out(os, "%s", os->timestamp); + + aggr_printout(config, os, os->evsel, os->id, os->aggr_nr); +} + +static void print_metricgroup_header_json(struct perf_stat_config *config, + void *ctx, + const char *metricgroup_name) +{ + if (!metricgroup_name) + return; + + json_out((struct outstate *) ctx, "\"metricgroup\" : \"%s\"}", metricgroup_name); + new_line_json(config, ctx); +} + +static void print_metricgroup_header_csv(struct perf_stat_config *config, + void *ctx, + const char *metricgroup_name) +{ + struct outstate *os = ctx; + int i; + + if (!metricgroup_name) { + /* Leave space for running and enabling */ + for (i = 0; i < os->csv_col_pad - 2; i++) + fputs(config->csv_sep, os->fh); + return; + } + + for (i = 0; i < os->csv_col_pad; i++) + fputs(config->csv_sep, os->fh); + fprintf(config->output, "%s", metricgroup_name); + new_line_csv(config, ctx); +} + +static void print_metricgroup_header_std(struct perf_stat_config *config, + void *ctx, + const char *metricgroup_name) +{ + struct outstate *os = ctx; + int n; + + if (!metricgroup_name) { + __new_line_std(config, os); + return; + } + + n = fprintf(config->output, " %*s", EVNAME_LEN, metricgroup_name); + + fprintf(config->output, "%*s", MGROUP_LEN + config->unit_width + 2 - n, ""); +} + +static void print_metric_only(struct perf_stat_config *config, + void *ctx, enum metric_threshold_classify thresh, + const char *fmt, const char *unit, double val) +{ + struct outstate *os = ctx; + FILE *out = os->fh; + char str[1024]; + unsigned mlen = config->metric_only_len; + const char *color = metric_threshold_classify__color(thresh); + + if (!unit) + 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); + os->first = false; +} + +static void print_metric_only_csv(struct perf_stat_config *config __maybe_unused, + void *ctx, + enum metric_threshold_classify thresh __maybe_unused, + const char *fmt, + const char *unit __maybe_unused, double val) +{ + struct outstate *os = ctx; + FILE *out = os->fh; + char buf[64], *vals, *ends; + + if (!unit) + return; + + snprintf(buf, sizeof(buf), fmt ?: "", val); + ends = vals = skip_spaces(buf); + while (isdigit(*ends) || *ends == '.') + ends++; + *ends = 0; + fprintf(out, "%s%s", vals, config->csv_sep); + os->first = false; +} + +static void print_metric_only_json(struct perf_stat_config *config __maybe_unused, + void *ctx, + enum metric_threshold_classify thresh __maybe_unused, + const char *fmt, + const char *unit, double val) +{ + struct outstate *os = ctx; + char buf[64], *ends; + const char *vals; + + if (!unit || !unit[0]) + return; + snprintf(buf, sizeof(buf), fmt ?: "", val); + vals = ends = skip_spaces(buf); + while (isdigit(*ends) || *ends == '.') + ends++; + *ends = 0; + if (!vals[0]) + vals = "none"; + json_out(os, "\"%s\" : \"%s\"", unit, vals); +} + +static void print_metric_header(struct perf_stat_config *config, + void *ctx, + enum metric_threshold_classify thresh __maybe_unused, + const char *fmt __maybe_unused, + const char *unit, double val __maybe_unused) +{ + struct outstate *os = ctx; + + /* In case of iostat, print metric header for first root port only */ + if (config->iostat_run && + os->evsel->priv != os->evsel->evlist->selected->priv) + return; + + if (os->evsel->cgrp != os->cgrp) + return; + + if (!unit) + return; + + if (config->json_output) + return; + else if (config->csv_output) + fprintf(os->fh, "%s%s", unit, config->csv_sep); + else + fprintf(os->fh, "%*s ", config->metric_only_len, unit); +} + +static void print_counter_value_std(struct perf_stat_config *config, + struct evsel *evsel, double avg, bool ok) +{ + FILE *output = config->output; + double sc = evsel->scale; + const char *fmt; + const char *bad_count = evsel->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED; + + if (config->big_num) + fmt = floor(sc) != sc ? "%'*.2f " : "%'*.0f "; + else + fmt = floor(sc) != sc ? "%*.2f " : "%*.0f "; + + if (ok) + fprintf(output, fmt, COUNTS_LEN, avg); + else + fprintf(output, "%*s ", COUNTS_LEN, bad_count); + + if (evsel->unit) + fprintf(output, "%-*s ", config->unit_width, evsel->unit); + + fprintf(output, "%-*s", EVNAME_LEN, evsel__name(evsel)); +} + +static void print_counter_value_csv(struct perf_stat_config *config, + struct evsel *evsel, double avg, bool ok) +{ + FILE *output = config->output; + double sc = evsel->scale; + const char *sep = config->csv_sep; + const char *fmt = floor(sc) != sc ? "%.2f%s" : "%.0f%s"; + const char *bad_count = evsel->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED; + + if (ok) + fprintf(output, fmt, avg, sep); + else + fprintf(output, "%s%s", bad_count, sep); + + if (evsel->unit) + fprintf(output, "%s%s", evsel->unit, sep); + + fprintf(output, "%s", evsel__name(evsel)); +} + +static void print_counter_value_json(struct outstate *os, + struct evsel *evsel, double avg, bool ok) +{ + const char *bad_count = evsel->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED; + + if (ok) + json_out(os, "\"counter-value\" : \"%f\"", avg); + else + json_out(os, "\"counter-value\" : \"%s\"", bad_count); + + if (evsel->unit) + json_out(os, "\"unit\" : \"%s\"", evsel->unit); + + json_out(os, "\"event\" : \"%s\"", evsel__name(evsel)); +} + +static void print_counter_value(struct perf_stat_config *config, struct outstate *os, + struct evsel *evsel, double avg, bool ok) +{ + if (config->json_output) + print_counter_value_json(os, evsel, avg, ok); + else if (config->csv_output) + print_counter_value_csv(config, evsel, avg, ok); + else + print_counter_value_std(config, evsel, avg, ok); +} + +static void abs_printout(struct perf_stat_config *config, + struct outstate *os, + struct aggr_cpu_id id, int aggr_nr, + struct evsel *evsel, double avg, bool ok) +{ + aggr_printout(config, os, evsel, id, aggr_nr); + print_counter_value(config, os, evsel, avg, ok); + print_cgroup(config, os, evsel->cgrp); +} + +static bool evlist__has_hybrid_pmus(struct evlist *evlist) +{ + struct evsel *evsel; + struct perf_pmu *last_core_pmu = NULL; + + if (perf_pmus__num_core_pmus() == 1) + return false; + + evlist__for_each_entry(evlist, evsel) { + if (evsel->core.is_pmu_core) { + struct perf_pmu *pmu = evsel__find_pmu(evsel); + + if (pmu == last_core_pmu) + continue; + + if (last_core_pmu == NULL) { + last_core_pmu = pmu; + continue; + } + /* A distinct core PMU. */ + return true; + } + } + + return false; +} + +static void printout(struct perf_stat_config *config, struct outstate *os, + double uval, u64 run, u64 ena, double noise, int aggr_idx) +{ + struct perf_stat_output_ctx out; + print_metric_t pm; + new_line_t nl; + print_metricgroup_header_t pmh; + bool ok = true; + struct evsel *counter = os->evsel; + + if (config->csv_output) { + pm = config->metric_only ? print_metric_only_csv : print_metric_csv; + nl = config->metric_only ? NULL : new_line_csv; + pmh = print_metricgroup_header_csv; + os->csv_col_pad = 4 + (counter->cgrp ? 1 : 0); + } else if (config->json_output) { + pm = config->metric_only ? print_metric_only_json : print_metric_json; + nl = config->metric_only ? NULL : new_line_json; + pmh = print_metricgroup_header_json; + } else { + pm = config->metric_only ? print_metric_only : print_metric_std; + nl = config->metric_only ? NULL : new_line_std; + pmh = print_metricgroup_header_std; + } + + if (run == 0 || ena == 0 || counter->counts->scaled == -1) { + if (config->metric_only) { + pm(config, os, METRIC_THRESHOLD_UNKNOWN, /*format=*/NULL, + /*unit=*/NULL, /*val=*/0); + return; + } + + ok = false; + + if (counter->supported) { + if (!evlist__has_hybrid_pmus(counter->evlist)) { + config->print_free_counters_hint = 1; + } + } + } + + out.print_metric = pm; + out.new_line = nl; + out.print_metricgroup_header = pmh; + out.ctx = os; + out.force_header = false; + + if (!config->metric_only && (!counter->default_metricgroup || counter->default_show_events)) { + abs_printout(config, os, os->id, os->aggr_nr, counter, uval, ok); + + print_noise(config, os, counter, noise, /*before_metric=*/true); + print_running(config, os, run, ena, /*before_metric=*/true); + } + + if (ok) { + if (!config->metric_only && counter->default_metricgroup && !counter->default_show_events) { + void *from = NULL; + + aggr_printout(config, os, os->evsel, os->id, os->aggr_nr); + /* Print out all the metricgroup with the same metric event. */ + do { + int num = 0; + + /* Print out the new line for the next new metricgroup. */ + if (from) { + if (config->json_output) + new_line_json(config, (void *)os); + else + __new_line_std_csv(config, os); + } + + print_noise(config, os, counter, noise, /*before_metric=*/true); + print_running(config, os, run, ena, /*before_metric=*/true); + from = perf_stat__print_shadow_stats_metricgroup(config, counter, aggr_idx, + &num, from, &out); + } while (from != NULL); + } else { + perf_stat__print_shadow_stats(config, counter, aggr_idx, &out); + } + } else { + pm(config, os, METRIC_THRESHOLD_UNKNOWN, /*format=*/NULL, /*unit=*/NULL, /*val=*/0); + } + + if (!config->metric_only) { + print_noise(config, os, counter, noise, /*before_metric=*/false); + print_running(config, os, run, ena, /*before_metric=*/false); + } +} + +/** + * should_skip_zero_count() - Check if the event should print 0 values. + * @config: The perf stat configuration (including aggregation mode). + * @counter: The evsel with its associated cpumap. + * @id: The aggregation id that is being queried. + * + * Due to mismatch between the event cpumap or thread-map and the + * aggregation mode, sometimes it'd iterate the counter with the map + * which does not contain any values. + * + * For example, uncore events have dedicated CPUs to manage them, + * result for other CPUs should be zero and skipped. + * + * Return: %true if the value should NOT be printed, %false if the value + * needs to be printed like "<not counted>" or "<not supported>". + */ +static bool should_skip_zero_counter(struct perf_stat_config *config, + struct evsel *counter, + const struct aggr_cpu_id *id) +{ + struct perf_cpu cpu; + int idx; + + /* + * Skip unsupported default events when not verbose. (default events + * are all marked 'skippable'). + */ + if (verbose == 0 && counter->skippable && !counter->supported) + return true; + + /* Metric only counts won't be displayed but the metric wants to be computed. */ + if (config->metric_only) + return false; + /* + * Skip value 0 when enabling --per-thread globally, + * otherwise it will have too many 0 output. + */ + if (config->aggr_mode == AGGR_THREAD && config->system_wide) + return true; + + /* + * In per-thread mode the aggr_map and aggr_get_id functions may be + * NULL, assume all 0 values should be output in that case. + */ + if (!config->aggr_map || !config->aggr_get_id) + return false; + + /* + * Tool events may be gathered on all logical CPUs, for example + * system_time, but for many the first index is the only one used, for + * example num_cores. Don't skip for the first index. + */ + if (evsel__is_tool(counter)) { + struct aggr_cpu_id own_id = + config->aggr_get_id(config, (struct perf_cpu){ .cpu = 0 }); + + return !aggr_cpu_id__equal(id, &own_id); + } + /* + * Skip value 0 when the counter's cpumask doesn't match the given aggr + * id. + */ + + perf_cpu_map__for_each_cpu(cpu, idx, counter->core.cpus) { + struct aggr_cpu_id own_id = config->aggr_get_id(config, cpu); + + if (aggr_cpu_id__equal(id, &own_id)) + return false; + } + return true; +} + +static void print_counter_aggrdata(struct perf_stat_config *config, + struct evsel *counter, int aggr_idx, + struct outstate *os) +{ + FILE *output = config->output; + u64 ena, run, val; + double uval; + struct perf_stat_evsel *ps = counter->stats; + struct perf_stat_aggr *aggr = &ps->aggr[aggr_idx]; + struct aggr_cpu_id id = config->aggr_map->map[aggr_idx]; + double avg = aggr->counts.val; + bool metric_only = config->metric_only; + + os->id = id; + os->aggr_nr = aggr->nr; + os->evsel = counter; + + /* Skip already merged uncore/hybrid events */ + if (config->aggr_mode != AGGR_NONE) { + if (evsel__is_hybrid(counter)) { + if (config->hybrid_merge && counter->first_wildcard_match != NULL) + return; + } else { + if (counter->first_wildcard_match != NULL) + return; + } + } + + val = aggr->counts.val; + ena = aggr->counts.ena; + run = aggr->counts.run; + + if (perf_stat__skip_metric_event(counter, ena, run)) + return; + + if (val == 0 && should_skip_zero_counter(config, counter, &id)) + return; + + if (!metric_only) { + if (config->json_output) { + os->first = true; + fputc('{', output); + } + if (config->interval) { + if (config->json_output) + json_out(os, "%s", os->timestamp); + else + fprintf(output, "%s", os->timestamp); + } else if (config->summary && config->csv_output && + !config->no_csv_summary) + fprintf(output, "%s%s", "summary", config->csv_sep); + } + + uval = val * counter->scale; + + printout(config, os, uval, run, ena, avg, aggr_idx); + + if (!metric_only) + fputc('\n', output); +} + +static void print_metric_begin(struct perf_stat_config *config, + struct evlist *evlist, + struct outstate *os, int aggr_idx) +{ + struct perf_stat_aggr *aggr; + struct aggr_cpu_id id; + struct evsel *evsel; + + os->first = true; + if (!config->metric_only) + return; + + if (config->json_output) + fputc('{', config->output); + + if (config->interval) { + if (config->json_output) + json_out(os, "%s", os->timestamp); + else + fprintf(config->output, "%s", os->timestamp); + } + evsel = evlist__first(evlist); + id = config->aggr_map->map[aggr_idx]; + aggr = &evsel->stats->aggr[aggr_idx]; + aggr_printout(config, os, evsel, id, aggr->nr); + + print_cgroup(config, os, os->cgrp ? : evsel->cgrp); +} + +static void print_metric_end(struct perf_stat_config *config, struct outstate *os) +{ + FILE *output = config->output; + + if (!config->metric_only) + return; + + if (config->json_output) { + if (os->first) + fputs("\"metric-value\" : \"none\"", output); + fputc('}', output); + } + fputc('\n', output); +} + +static void print_aggr(struct perf_stat_config *config, + struct evlist *evlist, + struct outstate *os) +{ + struct evsel *counter; + int aggr_idx; + + if (!config->aggr_map || !config->aggr_get_id) + return; + + /* + * With metric_only everything is on a single line. + * Without each counter has its own line. + */ + cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) { + print_metric_begin(config, evlist, os, aggr_idx); + + evlist__for_each_entry(evlist, counter) { + print_counter_aggrdata(config, counter, aggr_idx, os); + } + print_metric_end(config, os); + } +} + +static void print_aggr_cgroup(struct perf_stat_config *config, + struct evlist *evlist, + struct outstate *os) +{ + struct evsel *counter, *evsel; + int aggr_idx; + + if (!config->aggr_map || !config->aggr_get_id) + return; + + evlist__for_each_entry(evlist, evsel) { + if (os->cgrp == evsel->cgrp) + continue; + + os->cgrp = evsel->cgrp; + + cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) { + print_metric_begin(config, evlist, os, aggr_idx); + + evlist__for_each_entry(evlist, counter) { + if (counter->cgrp != os->cgrp) + continue; + + print_counter_aggrdata(config, counter, aggr_idx, os); + } + print_metric_end(config, os); + } + } +} + +static void print_counter(struct perf_stat_config *config, + struct evsel *counter, struct outstate *os) +{ + int aggr_idx; + + /* AGGR_THREAD doesn't have config->aggr_get_id */ + if (!config->aggr_map) + return; + + cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) { + print_counter_aggrdata(config, counter, aggr_idx, os); + } +} + +static void print_no_aggr_metric(struct perf_stat_config *config, + struct evlist *evlist, + struct outstate *os) +{ + int all_idx; + struct perf_cpu cpu; + + perf_cpu_map__for_each_cpu(cpu, all_idx, evlist->core.user_requested_cpus) { + struct evsel *counter; + bool first = true; + + evlist__for_each_entry(evlist, counter) { + u64 ena, run, val; + double uval; + struct perf_stat_evsel *ps = counter->stats; + int aggr_idx = 0; + + if (!perf_cpu_map__has(evsel__cpus(counter), cpu)) + continue; + + cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) { + if (config->aggr_map->map[aggr_idx].cpu.cpu == cpu.cpu) + break; + } + + os->evsel = counter; + os->id = aggr_cpu_id__cpu(cpu, /*data=*/NULL); + if (first) { + print_metric_begin(config, evlist, os, aggr_idx); + first = false; + } + val = ps->aggr[aggr_idx].counts.val; + ena = ps->aggr[aggr_idx].counts.ena; + run = ps->aggr[aggr_idx].counts.run; + + uval = val * counter->scale; + printout(config, os, uval, run, ena, 1.0, aggr_idx); + } + if (!first) + print_metric_end(config, os); + } +} + +static void print_metric_headers_std(struct perf_stat_config *config, + bool no_indent) +{ + fputc(' ', config->output); + + if (!no_indent) { + int len = aggr_header_lens[config->aggr_mode]; + + if (nr_cgroups || config->cgroup_list) + len += CGROUP_LEN + 1; + + fprintf(config->output, "%*s", len, ""); + } +} + +static void print_metric_headers_csv(struct perf_stat_config *config, + bool no_indent __maybe_unused) +{ + const char *p; + + if (config->interval) + fprintf(config->output, "time%s", config->csv_sep); + if (config->iostat_run) + return; + + p = aggr_header_csv[config->aggr_mode]; + while (*p) { + if (*p == ',') + fputs(config->csv_sep, config->output); + else + fputc(*p, config->output); + p++; + } +} + +static void print_metric_headers_json(struct perf_stat_config *config __maybe_unused, + bool no_indent __maybe_unused) +{ +} + +static void print_metric_headers(struct perf_stat_config *config, + struct evlist *evlist, bool no_indent) +{ + struct evsel *counter; + struct outstate os = { + .fh = config->output + }; + struct perf_stat_output_ctx out = { + .ctx = &os, + .print_metric = print_metric_header, + .new_line = NULL, + .force_header = true, + }; + + if (config->json_output) + print_metric_headers_json(config, no_indent); + else if (config->csv_output) + print_metric_headers_csv(config, no_indent); + else + print_metric_headers_std(config, no_indent); + + if (config->iostat_run) + iostat_print_header_prefix(config); + + if (config->cgroup_list) + os.cgrp = evlist__first(evlist)->cgrp; + + /* Print metrics headers only */ + evlist__for_each_entry(evlist, counter) { + if (!config->iostat_run && + config->aggr_mode != AGGR_NONE && counter->metric_leader != counter) + continue; + + os.evsel = counter; + + perf_stat__print_shadow_stats(config, counter, /*aggr_idx=*/0, &out); + } + + if (!config->json_output) + fputc('\n', config->output); +} + +static void prepare_timestamp(struct perf_stat_config *config, + struct outstate *os, struct timespec *ts) +{ + if (config->iostat_run) + return; + + if (config->json_output) + scnprintf(os->timestamp, sizeof(os->timestamp), "\"interval\" : %lu.%09lu", + (unsigned long) ts->tv_sec, ts->tv_nsec); + else if (config->csv_output) + scnprintf(os->timestamp, sizeof(os->timestamp), "%lu.%09lu%s", + (unsigned long) ts->tv_sec, ts->tv_nsec, config->csv_sep); + else + scnprintf(os->timestamp, sizeof(os->timestamp), "%6lu.%09lu ", + (unsigned long) ts->tv_sec, ts->tv_nsec); +} + +static void print_header_interval_std(struct perf_stat_config *config, + struct target *_target __maybe_unused, + struct evlist *evlist, + int argc __maybe_unused, + const char **argv __maybe_unused) +{ + FILE *output = config->output; + + switch (config->aggr_mode) { + case AGGR_NODE: + case AGGR_SOCKET: + case AGGR_DIE: + case AGGR_CLUSTER: + case AGGR_CACHE: + case AGGR_CORE: + fprintf(output, "#%*s %-*s ctrs", + INTERVAL_LEN - 1, "time", + aggr_header_lens[config->aggr_mode], + aggr_header_std[config->aggr_mode]); + break; + case AGGR_NONE: + fprintf(output, "#%*s %-*s", + INTERVAL_LEN - 1, "time", + aggr_header_lens[config->aggr_mode], + aggr_header_std[config->aggr_mode]); + break; + case AGGR_THREAD: + fprintf(output, "#%*s %*s-%-*s", + INTERVAL_LEN - 1, "time", + COMM_LEN, "comm", PID_LEN, "pid"); + break; + case AGGR_GLOBAL: + default: + if (!config->iostat_run) + fprintf(output, "#%*s", + INTERVAL_LEN - 1, "time"); + case AGGR_UNSET: + case AGGR_MAX: + break; + } + + if (config->metric_only) + print_metric_headers(config, evlist, true); + else + fprintf(output, " %*s %*s events\n", + COUNTS_LEN, "counts", config->unit_width, "unit"); +} + +static void print_header_std(struct perf_stat_config *config, + struct target *_target, struct evlist *evlist, + int argc, const char **argv) +{ + FILE *output = config->output; + int i; + + fprintf(output, "\n"); + fprintf(output, " Performance counter stats for "); + if (_target->bpf_str) + fprintf(output, "\'BPF program(s) %s", _target->bpf_str); + else 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"); + + if (config->metric_only) + print_metric_headers(config, evlist, false); +} + +static void print_header_csv(struct perf_stat_config *config, + struct target *_target __maybe_unused, + struct evlist *evlist, + int argc __maybe_unused, + const char **argv __maybe_unused) +{ + if (config->metric_only) + print_metric_headers(config, evlist, true); +} +static void print_header_json(struct perf_stat_config *config, + struct target *_target __maybe_unused, + struct evlist *evlist, + int argc __maybe_unused, + const char **argv __maybe_unused) +{ + if (config->metric_only) + print_metric_headers(config, evlist, true); +} + +static void print_header(struct perf_stat_config *config, + struct target *_target, + struct evlist *evlist, + int argc, const char **argv) +{ + static int num_print_iv; + + fflush(stdout); + + if (config->interval_clear) + puts(CONSOLE_CLEAR); + + if (num_print_iv == 0 || config->interval_clear) { + if (config->json_output) + print_header_json(config, _target, evlist, argc, argv); + else if (config->csv_output) + print_header_csv(config, _target, evlist, argc, argv); + else if (config->interval) + print_header_interval_std(config, _target, evlist, argc, argv); + else + print_header_std(config, _target, evlist, argc, argv); + } + + if (num_print_iv++ == 25) + num_print_iv = 0; +} + +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; + + if (config->interval || config->csv_output || config->json_output) + return; + + 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, NULL, sd, avg, /*before_metric=*/false); + } + fprintf(output, "\n\n"); + + if (config->print_free_counters_hint && sysctl__nmi_watchdog_enabled()) + 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"); +} + +static void print_percore(struct perf_stat_config *config, + struct evsel *counter, struct outstate *os) +{ + bool metric_only = config->metric_only; + FILE *output = config->output; + struct cpu_aggr_map *core_map; + int aggr_idx, core_map_len = 0; + + if (!config->aggr_map || !config->aggr_get_id) + return; + + if (config->percore_show_thread) + return print_counter(config, counter, os); + + /* + * core_map will hold the aggr_cpu_id for the cores that have been + * printed so that each core is printed just once. + */ + core_map = cpu_aggr_map__empty_new(config->aggr_map->nr); + if (core_map == NULL) { + fprintf(output, "Cannot allocate per-core aggr map for display\n"); + return; + } + + cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) { + struct perf_cpu curr_cpu = config->aggr_map->map[aggr_idx].cpu; + struct aggr_cpu_id core_id = aggr_cpu_id__core(curr_cpu, NULL); + bool found = false; + + for (int i = 0; i < core_map_len; i++) { + if (aggr_cpu_id__equal(&core_map->map[i], &core_id)) { + found = true; + break; + } + } + if (found) + continue; + + print_counter_aggrdata(config, counter, aggr_idx, os); + + core_map->map[core_map_len++] = core_id; + } + free(core_map); + + if (metric_only) + fputc('\n', output); +} + +static void print_cgroup_counter(struct perf_stat_config *config, struct evlist *evlist, + struct outstate *os) +{ + struct evsel *counter; + + evlist__for_each_entry(evlist, counter) { + if (os->cgrp != counter->cgrp) { + if (os->cgrp != NULL) + print_metric_end(config, os); + + os->cgrp = counter->cgrp; + print_metric_begin(config, evlist, os, /*aggr_idx=*/0); + } + + print_counter(config, counter, os); + } + if (os->cgrp) + print_metric_end(config, os); +} + +void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config, + struct target *_target, struct timespec *ts, + int argc, const char **argv) +{ + bool metric_only = config->metric_only; + struct evsel *counter; + struct outstate os = { + .fh = config->output, + .first = true, + }; + + evlist__uniquify_evsel_names(evlist, config); + + if (config->iostat_run) + evlist->selected = evlist__first(evlist); + + if (config->interval) + prepare_timestamp(config, &os, ts); + + print_header(config, _target, evlist, argc, argv); + + switch (config->aggr_mode) { + case AGGR_CORE: + case AGGR_CACHE: + case AGGR_CLUSTER: + case AGGR_DIE: + case AGGR_SOCKET: + case AGGR_NODE: + if (config->cgroup_list) + print_aggr_cgroup(config, evlist, &os); + else + print_aggr(config, evlist, &os); + break; + case AGGR_THREAD: + case AGGR_GLOBAL: + if (config->iostat_run) { + iostat_print_counters(evlist, config, ts, os.timestamp, + (iostat_print_counter_t)print_counter, &os); + } else if (config->cgroup_list) { + print_cgroup_counter(config, evlist, &os); + } else { + print_metric_begin(config, evlist, &os, /*aggr_idx=*/0); + evlist__for_each_entry(evlist, counter) { + print_counter(config, counter, &os); + } + print_metric_end(config, &os); + } + break; + case AGGR_NONE: + if (metric_only) + print_no_aggr_metric(config, evlist, &os); + else { + evlist__for_each_entry(evlist, counter) { + if (counter->percore) + print_percore(config, counter, &os); + else + print_counter(config, counter, &os); + } + } + break; + case AGGR_MAX: + case AGGR_UNSET: + default: + break; + } + + print_footer(config); + + fflush(config->output); +} |