kvj
/
linux-zen-server
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
linux-zen-server/tools/perf/util/stat-display.c

1470 lines
36 KiB
C
Raw Normal View History

Initial commit
2023-08-30 17:53:23 +02:00
#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 "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-hybrid.h"
#include "evlist-hybrid.h"
#define CNTR_NOT_SUPPORTED "<not supported>"
#define CNTR_NOT_COUNTED "<not counted>"
#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_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,cpus,",
[AGGR_DIE] = "die,cpus,",
[AGGR_SOCKET] = "socket,cpus,",
[AGGR_NONE] = "cpu,",
[AGGR_THREAD] = "comm-pid,",
[AGGR_NODE] = "node,",
[AGGR_GLOBAL] = ""
};
static const char *aggr_header_std[] = {
[AGGR_CORE] = "core",
[AGGR_DIE] = "die",
[AGGR_SOCKET] = "socket",
[AGGR_NONE] = "cpu",
[AGGR_THREAD] = "comm-pid",
[AGGR_NODE] = "node",
[AGGR_GLOBAL] = ""
};
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);
}
static void print_running_json(struct perf_stat_config *config, u64 run, u64 ena)
{
double enabled_percent = 100;
if (run != ena)
enabled_percent = 100 * run / ena;
fprintf(config->output, "\"event-runtime\" : %" PRIu64 ", \"pcnt-running\" : %.2f, ",
run, enabled_percent);
}
static void print_running(struct perf_stat_config *config,
u64 run, u64 ena, bool before_metric)
{
if (config->json_output) {
if (before_metric)
print_running_json(config, 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 perf_stat_config *config,
double pct)
{
fprintf(config->output, "\"variance\" : %.2f, ", pct);
}
static void print_noise_pct(struct perf_stat_config *config,
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(config, 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 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, 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 perf_stat_config *config, const char *cgrp_name)
{
fprintf(config->output, "\"cgroup\" : \"%s\", ", cgrp_name);
}
static void print_cgroup(struct perf_stat_config *config, struct cgroup *cgrp)
{
if (nr_cgroups || config->cgroup_list) {
const char *cgrp_name = cgrp ? cgrp->name : "";
if (config->json_output)
print_cgroup_json(config, 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 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_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, 4, nr);
}
static void print_aggr_id_csv(struct perf_stat_config *config,
struct evsel *evsel, struct aggr_cpu_id id, int 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, nr, sep);
break;
case AGGR_DIE:
fprintf(output, "S%d-D%d%s%d%s",
id.socket, id.die, sep, nr, sep);
break;
case AGGR_SOCKET:
fprintf(output, "S%d%s%d%s",
id.socket, sep, nr, sep);
break;
case AGGR_NODE:
fprintf(output, "N%d%s%d%s",
id.node, sep, 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 evsel *evsel, struct aggr_cpu_id id, int nr)
{
FILE *output = config->output;
switch (config->aggr_mode) {
case AGGR_CORE:
fprintf(output, "\"core\" : \"S%d-D%d-C%d\", \"aggregate-number\" : %d, ",
id.socket, id.die, id.core, nr);
break;
case AGGR_DIE:
fprintf(output, "\"die\" : \"S%d-D%d\", \"aggregate-number\" : %d, ",
id.socket, id.die, nr);
break;
case AGGR_SOCKET:
fprintf(output, "\"socket\" : \"S%d\", \"aggregate-number\" : %d, ",
id.socket, nr);
break;
case AGGR_NODE:
fprintf(output, "\"node\" : \"N%d\", \"aggregate-number\" : %d, ",
id.node, nr);
break;
case AGGR_NONE:
if (evsel->percore && !config->percore_show_thread) {
fprintf(output, "\"core\" : \"S%d-D%d-C%d\"",
id.socket, id.die, id.core);
} else if (id.cpu.cpu > -1) {
fprintf(output, "\"cpu\" : \"%d\", ",
id.cpu.cpu);
}
break;
case AGGR_THREAD:
fprintf(output, "\"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 evsel *evsel, struct aggr_cpu_id id, int nr)
{
if (config->json_output)
print_aggr_id_json(config, evsel, id, nr);
else if (config->csv_output)
print_aggr_id_csv(config, evsel, id, nr);
else
print_aggr_id_std(config, evsel, id, nr);
}
struct outstate {
FILE *fh;
bool newline;
bool first;
const char *prefix;
int nfields;
int nr;
struct aggr_cpu_id id;
struct evsel *evsel;
struct cgroup *cgrp;
};
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);
if (os->prefix)
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", os->prefix);
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 = 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,
const char *color __maybe_unused,
const char *fmt __maybe_unused,
const char *unit, double val)
{
struct outstate *os = ctx;
FILE *out = os->fh;
fprintf(out, "\"metric-value\" : %f, ", val);
fprintf(out, "\"metric-unit\" : \"%s\"", unit);
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);
if (os->prefix)
fprintf(os->fh, "%s", os->prefix);
aggr_printout(config, os->evsel, os->id, os->nr);
}
/* 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, "CPUs utilized"))
return false;
return true;
}
static const char *fixunit(char *buf, struct evsel *evsel,
const char *unit)
{
if (!strncmp(unit, "of all", 6)) {
snprintf(buf, 1024, "%s %s", 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);
os->first = false;
}
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 = 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, 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 = skip_spaces(buf);
while (isdigit(*ends) || *ends == '.')
ends++;
*ends = 0;
if (!unit[0] || !vals[0])
return;
fprintf(out, "%s\"%s\" : \"%s\"", os->first ? "" : ", ", unit, vals);
os->first = false;
}
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];
/* 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 (!valid_only_metric(unit))
return;
unit = fixunit(tbuf, os->evsel, unit);
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 perf_stat_config *config,
struct evsel *evsel, double avg, bool ok)
{
FILE *output = config->output;
const char *bad_count = evsel->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED;
if (ok)
fprintf(output, "\"counter-value\" : \"%f\", ", avg);
else
fprintf(output, "\"counter-value\" : \"%s\", ", bad_count);
if (evsel->unit)
fprintf(output, "\"unit\" : \"%s\", ", evsel->unit);
fprintf(output, "\"event\" : \"%s\", ", evsel__name(evsel));
}
static void print_counter_value(struct perf_stat_config *config,
struct evsel *evsel, double avg, bool ok)
{
if (config->json_output)
print_counter_value_json(config, 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 aggr_cpu_id id, int nr,
struct evsel *evsel, double avg, bool ok)
{
aggr_printout(config, evsel, id, nr);
print_counter_value(config, evsel, avg, ok);
print_cgroup(config, evsel->cgrp);
}
static bool is_mixed_hw_group(struct evsel *counter)
{
struct evlist *evlist = counter->evlist;
u32 pmu_type = counter->core.attr.type;
struct evsel *pos;
if (counter->core.nr_members < 2)
return false;
evlist__for_each_entry(evlist, pos) {
/* software events can be part of any hardware group */
if (pos->core.attr.type == PERF_TYPE_SOFTWARE)
continue;
if (pmu_type == PERF_TYPE_SOFTWARE) {
pmu_type = pos->core.attr.type;
continue;
}
if (pmu_type != pos->core.attr.type)
return true;
}
return false;
}
static void printout(struct perf_stat_config *config, struct outstate *os,
double uval, u64 run, u64 ena, double noise, int map_idx)
{
struct perf_stat_output_ctx out;
print_metric_t pm;
new_line_t nl;
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 ? new_line_metric : new_line_csv;
os->nfields = 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 ? new_line_metric : new_line_json;
} else {
pm = config->metric_only ? print_metric_only : print_metric_std;
nl = config->metric_only ? new_line_metric : new_line_std;
}
if (run == 0 || ena == 0 || counter->counts->scaled == -1) {
if (config->metric_only) {
pm(config, os, NULL, "", "", 0);
return;
}
ok = false;
if (counter->supported) {
if (!evlist__has_hybrid(counter->evlist)) {
config->print_free_counters_hint = 1;
if (is_mixed_hw_group(counter))
config->print_mixed_hw_group_error = 1;
}
}
}
out.print_metric = pm;
out.new_line = nl;
out.ctx = os;
out.force_header = false;
if (!config->metric_only) {
abs_printout(config, os->id, os->nr, counter, uval, ok);
print_noise(config, counter, noise, /*before_metric=*/true);
print_running(config, run, ena, /*before_metric=*/true);
}
if (ok) {
perf_stat__print_shadow_stats(config, counter, uval, map_idx,
&out, &config->metric_events, &rt_stat);
} else {
pm(config, os, /*color=*/NULL, /*format=*/NULL, /*unit=*/"", /*val=*/0);
}
if (!config->metric_only) {
print_noise(config, counter, noise, /*before_metric=*/false);
print_running(config, run, ena, /*before_metric=*/false);
}
}
static void uniquify_event_name(struct evsel *counter)
{
char *new_name;
char *config;
int ret = 0;
if (counter->uniquified_name || counter->use_config_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 (evsel__is_hybrid(counter)) {
ret = asprintf(&new_name, "%s/%s/",
counter->pmu_name, counter->name);
} else {
ret = asprintf(&new_name, "%s [%s]",
counter->name, counter->pmu_name);
}
if (ret) {
free(counter->name);
counter->name = new_name;
}
}
counter->uniquified_name = true;
}
static bool hybrid_uniquify(struct evsel *evsel, struct perf_stat_config *config)
{
return evsel__is_hybrid(evsel) && !config->hybrid_merge;
}
static void uniquify_counter(struct perf_stat_config *config, struct evsel *counter)
{
if (config->no_merge || hybrid_uniquify(counter, config))
uniquify_event_name(counter);
}
/**
* 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 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;
/*
* Skip value 0 when it's an uncore event and the given aggr id
* does not belong to the PMU cpumask.
*/
if (!counter->pmu || !counter->pmu->is_uncore)
return false;
perf_cpu_map__for_each_cpu(cpu, idx, counter->pmu->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 s,
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[s];
struct aggr_cpu_id id = config->aggr_map->map[s];
double avg = aggr->counts.val;
bool metric_only = config->metric_only;
os->id = id;
os->nr = aggr->nr;
os->evsel = counter;
/* Skip already merged uncore/hybrid events */
if (counter->merged_stat)
return;
uniquify_counter(config, counter);
val = aggr->counts.val;
ena = aggr->counts.ena;
run = aggr->counts.run;
if (val == 0 && should_skip_zero_counter(config, counter, &id))
return;
if (!metric_only) {
if (config->json_output)
fputc('{', output);
if (os->prefix)
fprintf(output, "%s", os->prefix);
else if (config->summary && config->csv_output &&
!config->no_csv_summary && !config->interval)
fprintf(output, "%s%s", "summary", config->csv_sep);
}
uval = val * counter->scale;
printout(config, os, uval, run, ena, avg, s);
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 (os->prefix)
fprintf(config->output, "%s", os->prefix);
evsel = evlist__first(evlist);
id = config->aggr_map->map[aggr_idx];
aggr = &evsel->stats->aggr[aggr_idx];
aggr_printout(config, evsel, id, aggr->nr);
print_cgroup(config, 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 s;
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.
*/
for (s = 0; s < config->aggr_map->nr; s++) {
print_metric_begin(config, evlist, os, s);
evlist__for_each_entry(evlist, counter) {
print_counter_aggrdata(config, counter, s, 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 s;
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;
for (s = 0; s < config->aggr_map->nr; s++) {
print_metric_begin(config, evlist, os, s);
evlist__for_each_entry(evlist, counter) {
if (counter->cgrp != os->cgrp)
continue;
print_counter_aggrdata(config, counter, s, os);
}
print_metric_end(config, os);
}
}
}
static void print_counter(struct perf_stat_config *config,
struct evsel *counter, struct outstate *os)
{
int s;
/* AGGR_THREAD doesn't have config->aggr_get_id */
if (!config->aggr_map)
return;
for (s = 0; s < config->aggr_map->nr; s++) {
print_counter_aggrdata(config, counter, s, 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 counter_idx = perf_cpu_map__idx(evsel__cpus(counter), cpu);
if (counter_idx < 0)
continue;
os->evsel = counter;
os->id = aggr_cpu_id__cpu(cpu, /*data=*/NULL);
if (first) {
print_metric_begin(config, evlist, os, counter_idx);
first = false;
}
val = ps->aggr[counter_idx].counts.val;
ena = ps->aggr[counter_idx].counts.ena;
run = ps->aggr[counter_idx].counts.run;
uval = val * counter->scale;
printout(config, os, uval, run, ena, 1.0, counter_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)
{
if (config->interval)
fputs("time,", config->output);
if (!config->iostat_run)
fputs(aggr_header_csv[config->aggr_mode], config->output);
}
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 = new_line_metric,
.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) {
os.evsel = counter;
perf_stat__print_shadow_stats(config, counter, 0,
0,
&out,
&config->metric_events,
&rt_stat);
}
if (!config->json_output)
fputc('\n', config->output);
}
static void prepare_interval(struct perf_stat_config *config,
char *prefix, size_t len, struct timespec *ts)
{
if (config->iostat_run)
return;
if (config->json_output)
scnprintf(prefix, len, "\"interval\" : %lu.%09lu, ",
(unsigned long) ts->tv_sec, ts->tv_nsec);
else if (config->csv_output)
scnprintf(prefix, len, "%lu.%09lu%s",
(unsigned long) ts->tv_sec, ts->tv_nsec, config->csv_sep);
else
scnprintf(prefix, len, "%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_CORE:
fprintf(output, "#%*s %-*s cpus",
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, 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");
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 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 s, c, i;
if (!config->aggr_map || !config->aggr_get_id)
return;
if (config->percore_show_thread)
return print_counter(config, counter, os);
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;
}
for (s = 0, c = 0; s < config->aggr_map->nr; s++) {
struct perf_cpu curr_cpu = config->aggr_map->map[s].cpu;
struct aggr_cpu_id core_id = aggr_cpu_id__core(curr_cpu, NULL);
bool found = false;
for (i = 0; i < c; i++) {
if (aggr_cpu_id__equal(&core_map->map[i], &core_id)) {
found = true;
break;
}
}
if (found)
continue;
print_counter_aggrdata(config, counter, s, os);
core_map->map[c++] = 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;
int interval = config->interval;
struct evsel *counter;
char buf[64];
struct outstate os = {
.fh = config->output,
.first = true,
};
if (config->iostat_run)
evlist->selected = evlist__first(evlist);
if (interval) {
os.prefix = buf;
prepare_interval(config, buf, sizeof(buf), ts);
}
print_header(config, _target, evlist, argc, argv);
switch (config->aggr_mode) {
case AGGR_CORE:
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, buf,
(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);
}