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db5742b684
linux_dsm_epyc7002/tools/perf/util/stat-display.c
Kan Liang db5742b684 perf stat: Support per-die aggregation 
It is useful to aggregate counts per die. E.g. Uncore becomes die-scope
on Xeon Cascade Lake-AP.

Introduce a new option "--per-die" to support per-die aggregation.

The global id for each core has been changed to socket + die id + core
id. The global id for each die is socket + die id.

Add die information for per-core aggregation. The output of per-core
aggregation will be changed from "S0-C0" to "S0-D0-C0". Any scripts
which rely on the output format of per-core aggregation probably be
broken.

For 'perf stat record/report', there is no die information when
processing the old perf.data. The per-die result will be the same as
per-socket.

Committer notes:

Renamed 'die' variable to 'die_id' to fix the build in some systems:

    CC       /tmp/build/perf/builtin-script.o
  cc1: warnings being treated as errors
  builtin-stat.c: In function 'perf_env__get_die':
  builtin-stat.c:963: error: declaration of 'die' shadows a global declaration
  util/util.h:19: error: shadowed declaration is here
  mv: cannot stat `/tmp/build/perf/.builtin-stat.o.tmp': No such file or directory

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lkml.kernel.org/n/tip-bsnhx7vgsuu6ei307mw60mbj@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-06-10 16:19:59 -03:00

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#include <stdio.h>
#include <inttypes.h>
#include <linux/time64.h>
#include <math.h>
#include "color.h"
#include "evlist.h"
#include "evsel.h"
#include "stat.h"
#include "top.h"
#include "thread_map.h"
#include "cpumap.h"
#include "string2.h"
#include "sane_ctype.h"
#include "cgroup.h"
#include <math.h>
#include <api/fs/fs.h>
#define CNTR_NOT_SUPPORTED "<not supported>"
#define CNTR_NOT_COUNTED "<not counted>"
static void print_running(struct perf_stat_config *config,
u64 run, u64 ena)
{
if (config->csv_output) {
fprintf(config->output, "%s%" PRIu64 "%s%.2f",
config->csv_sep,
run,
config->csv_sep,
ena ? 100.0 * run / ena : 100.0);
} else if (run != ena) {
fprintf(config->output, " (%.2f%%)", 100.0 * run / ena);
}
}
static void print_noise_pct(struct perf_stat_config *config,
double total, double avg)
{
double pct = rel_stddev_stats(total, avg);
if (config->csv_output)
fprintf(config->output, "%s%.2f%%", config->csv_sep, pct);
else if (pct)
fprintf(config->output, " ( +-%6.2f%% )", pct);
}
static void print_noise(struct perf_stat_config *config,
struct perf_evsel *evsel, double avg)
{
struct perf_stat_evsel *ps;
if (config->run_count == 1)
return;
ps = evsel->stats;
print_noise_pct(config, stddev_stats(&ps->res_stats[0]), avg);
}
static void print_cgroup(struct perf_stat_config *config, struct perf_evsel *evsel)
{
if (nr_cgroups) {
const char *cgrp_name = evsel->cgrp ? evsel->cgrp->name : "";
fprintf(config->output, "%s%s", config->csv_sep, cgrp_name);
}
}
static void aggr_printout(struct perf_stat_config *config,
struct perf_evsel *evsel, int id, int nr)
{
switch (config->aggr_mode) {
case AGGR_CORE:
fprintf(config->output, "S%d-D%d-C%*d%s%*d%s",
cpu_map__id_to_socket(id),
cpu_map__id_to_die(id),
config->csv_output ? 0 : -8,
cpu_map__id_to_cpu(id),
config->csv_sep,
config->csv_output ? 0 : 4,
nr,
config->csv_sep);
break;
case AGGR_DIE:
fprintf(config->output, "S%d-D%*d%s%*d%s",
cpu_map__id_to_socket(id << 16),
config->csv_output ? 0 : -8,
cpu_map__id_to_die(id << 16),
config->csv_sep,
config->csv_output ? 0 : 4,
nr,
config->csv_sep);
break;
case AGGR_SOCKET:
fprintf(config->output, "S%*d%s%*d%s",
config->csv_output ? 0 : -5,
id,
config->csv_sep,
config->csv_output ? 0 : 4,
nr,
config->csv_sep);
break;
case AGGR_NONE:
if (evsel->percore) {
fprintf(config->output, "S%d-D%d-C%*d%s",
cpu_map__id_to_socket(id),
cpu_map__id_to_die(id),
config->csv_output ? 0 : -5,
cpu_map__id_to_cpu(id), config->csv_sep);
} else {
fprintf(config->output, "CPU%*d%s ",
config->csv_output ? 0 : -5,
perf_evsel__cpus(evsel)->map[id],
config->csv_sep);
}
break;
case AGGR_THREAD:
fprintf(config->output, "%*s-%*d%s",
config->csv_output ? 0 : 16,
thread_map__comm(evsel->threads, id),
config->csv_output ? 0 : -8,
thread_map__pid(evsel->threads, id),
config->csv_sep);
break;
case AGGR_GLOBAL:
case AGGR_UNSET:
default:
break;
}
}
struct outstate {
FILE *fh;
bool newline;
const char *prefix;
int nfields;
int id, nr;
struct perf_evsel *evsel;
};
#define METRIC_LEN 35
static void new_line_std(struct perf_stat_config *config __maybe_unused,
void *ctx)
{
struct outstate *os = ctx;
os->newline = true;
}
static void do_new_line_std(struct perf_stat_config *config,
struct outstate *os)
{
fputc('\n', os->fh);
fputs(os->prefix, os->fh);
aggr_printout(config, os->evsel, os->id, os->nr);
if (config->aggr_mode == AGGR_NONE)
fprintf(os->fh, " ");
fprintf(os->fh, " ");
}
static void print_metric_std(struct perf_stat_config *config,
void *ctx, const char *color, const char *fmt,
const char *unit, double val)
{
struct outstate *os = ctx;
FILE *out = os->fh;
int n;
bool newline = os->newline;
os->newline = false;
if (unit == NULL || fmt == NULL) {
fprintf(out, "%-*s", METRIC_LEN, "");
return;
}
if (newline)
do_new_line_std(config, os);
n = fprintf(out, " # ");
if (color)
n += color_fprintf(out, color, fmt, val);
else
n += fprintf(out, fmt, val);
fprintf(out, " %-*s", METRIC_LEN - n - 1, unit);
}
static void new_line_csv(struct perf_stat_config *config, void *ctx)
{
struct outstate *os = ctx;
int i;
fputc('\n', os->fh);
if (os->prefix)
fprintf(os->fh, "%s%s", os->prefix, config->csv_sep);
aggr_printout(config, os->evsel, os->id, os->nr);
for (i = 0; i < os->nfields; i++)
fputs(config->csv_sep, os->fh);
}
static void print_metric_csv(struct perf_stat_config *config __maybe_unused,
void *ctx,
const char *color __maybe_unused,
const char *fmt, const char *unit, double val)
{
struct outstate *os = ctx;
FILE *out = os->fh;
char buf[64], *vals, *ends;
if (unit == NULL || fmt == NULL) {
fprintf(out, "%s%s", config->csv_sep, config->csv_sep);
return;
}
snprintf(buf, sizeof(buf), fmt, val);
ends = vals = ltrim(buf);
while (isdigit(*ends) || *ends == '.')
ends++;
*ends = 0;
while (isspace(*unit))
unit++;
fprintf(out, "%s%s%s%s", config->csv_sep, vals, config->csv_sep, unit);
}
/* Filter out some columns that don't work well in metrics only mode */
static bool valid_only_metric(const char *unit)
{
if (!unit)
return false;
if (strstr(unit, "/sec") ||
strstr(unit, "hz") ||
strstr(unit, "Hz") ||
strstr(unit, "CPUs utilized"))
return false;
return true;
}
static const char *fixunit(char *buf, struct perf_evsel *evsel,
const char *unit)
{
if (!strncmp(unit, "of all", 6)) {
snprintf(buf, 1024, "%s %s", perf_evsel__name(evsel),
unit);
return buf;
}
return unit;
}
static void print_metric_only(struct perf_stat_config *config,
void *ctx, const char *color, const char *fmt,
const char *unit, double val)
{
struct outstate *os = ctx;
FILE *out = os->fh;
char buf[1024], str[1024];
unsigned mlen = config->metric_only_len;
if (!valid_only_metric(unit))
return;
unit = fixunit(buf, os->evsel, unit);
if (mlen < strlen(unit))
mlen = strlen(unit) + 1;
if (color)
mlen += strlen(color) + sizeof(PERF_COLOR_RESET) - 1;
color_snprintf(str, sizeof(str), color ?: "", fmt, val);
fprintf(out, "%*s ", mlen, str);
}
static void print_metric_only_csv(struct perf_stat_config *config __maybe_unused,
void *ctx, const char *color __maybe_unused,
const char *fmt,
const char *unit, double val)
{
struct outstate *os = ctx;
FILE *out = os->fh;
char buf[64], *vals, *ends;
char tbuf[1024];
if (!valid_only_metric(unit))
return;
unit = fixunit(tbuf, os->evsel, unit);
snprintf(buf, sizeof buf, fmt, val);
ends = vals = ltrim(buf);
while (isdigit(*ends) || *ends == '.')
ends++;
*ends = 0;
fprintf(out, "%s%s", vals, config->csv_sep);
}
static void new_line_metric(struct perf_stat_config *config __maybe_unused,
void *ctx __maybe_unused)
{
}
static void print_metric_header(struct perf_stat_config *config,
void *ctx, const char *color __maybe_unused,
const char *fmt __maybe_unused,
const char *unit, double val __maybe_unused)
{
struct outstate *os = ctx;
char tbuf[1024];
if (!valid_only_metric(unit))
return;
unit = fixunit(tbuf, os->evsel, unit);
if (config->csv_output)
fprintf(os->fh, "%s%s", unit, config->csv_sep);
else
fprintf(os->fh, "%*s ", config->metric_only_len, unit);
}
static int first_shadow_cpu(struct perf_stat_config *config,
struct perf_evsel *evsel, int id)
{
struct perf_evlist *evlist = evsel->evlist;
int i;
if (!config->aggr_get_id)
return 0;
if (config->aggr_mode == AGGR_NONE)
return id;
if (config->aggr_mode == AGGR_GLOBAL)
return 0;
for (i = 0; i < perf_evsel__nr_cpus(evsel); i++) {
int cpu2 = perf_evsel__cpus(evsel)->map[i];
if (config->aggr_get_id(config, evlist->cpus, cpu2) == id)
return cpu2;
}
return 0;
}
static void abs_printout(struct perf_stat_config *config,
int id, int nr, struct perf_evsel *evsel, double avg)
{
FILE *output = config->output;
double sc = evsel->scale;
const char *fmt;
if (config->csv_output) {
fmt = floor(sc) != sc ? "%.2f%s" : "%.0f%s";
} else {
if (config->big_num)
fmt = floor(sc) != sc ? "%'18.2f%s" : "%'18.0f%s";
else
fmt = floor(sc) != sc ? "%18.2f%s" : "%18.0f%s";
}
aggr_printout(config, evsel, id, nr);
fprintf(output, fmt, avg, config->csv_sep);
if (evsel->unit)
fprintf(output, "%-*s%s",
config->csv_output ? 0 : config->unit_width,
evsel->unit, config->csv_sep);
fprintf(output, "%-*s", config->csv_output ? 0 : 25, perf_evsel__name(evsel));
print_cgroup(config, evsel);
}
static bool is_mixed_hw_group(struct perf_evsel *counter)
{
struct perf_evlist *evlist = counter->evlist;
u32 pmu_type = counter->attr.type;
struct perf_evsel *pos;
if (counter->nr_members < 2)
return false;
evlist__for_each_entry(evlist, pos) {
/* software events can be part of any hardware group */
if (pos->attr.type == PERF_TYPE_SOFTWARE)
continue;
if (pmu_type == PERF_TYPE_SOFTWARE) {
pmu_type = pos->attr.type;
continue;
}
if (pmu_type != pos->attr.type)
return true;
}
return false;
}
static void printout(struct perf_stat_config *config, int id, int nr,
struct perf_evsel *counter, double uval,
char *prefix, u64 run, u64 ena, double noise,
struct runtime_stat *st)
{
struct perf_stat_output_ctx out;
struct outstate os = {
.fh = config->output,
.prefix = prefix ? prefix : "",
.id = id,
.nr = nr,
.evsel = counter,
};
print_metric_t pm = print_metric_std;
new_line_t nl;
if (config->metric_only) {
nl = new_line_metric;
if (config->csv_output)
pm = print_metric_only_csv;
else
pm = print_metric_only;
} else
nl = new_line_std;
if (config->csv_output && !config->metric_only) {
static int aggr_fields[] = {
[AGGR_GLOBAL] = 0,
[AGGR_THREAD] = 1,
[AGGR_NONE] = 1,
[AGGR_SOCKET] = 2,
[AGGR_DIE] = 2,
[AGGR_CORE] = 2,
};
pm = print_metric_csv;
nl = new_line_csv;
os.nfields = 3;
os.nfields += aggr_fields[config->aggr_mode];
if (counter->cgrp)
os.nfields++;
}
if (run == 0 || ena == 0 || counter->counts->scaled == -1) {
if (config->metric_only) {
pm(config, &os, NULL, "", "", 0);
return;
}
aggr_printout(config, counter, id, nr);
fprintf(config->output, "%*s%s",
config->csv_output ? 0 : 18,
counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
config->csv_sep);
if (counter->supported) {
config->print_free_counters_hint = 1;
if (is_mixed_hw_group(counter))
config->print_mixed_hw_group_error = 1;
}
fprintf(config->output, "%-*s%s",
config->csv_output ? 0 : config->unit_width,
counter->unit, config->csv_sep);
fprintf(config->output, "%*s",
config->csv_output ? 0 : -25,
perf_evsel__name(counter));
print_cgroup(config, counter);
if (!config->csv_output)
pm(config, &os, NULL, NULL, "", 0);
print_noise(config, counter, noise);
print_running(config, run, ena);
if (config->csv_output)
pm(config, &os, NULL, NULL, "", 0);
return;
}
if (!config->metric_only)
abs_printout(config, id, nr, counter, uval);
out.print_metric = pm;
out.new_line = nl;
out.ctx = &os;
out.force_header = false;
if (config->csv_output && !config->metric_only) {
print_noise(config, counter, noise);
print_running(config, run, ena);
}
perf_stat__print_shadow_stats(config, counter, uval,
first_shadow_cpu(config, counter, id),
&out, &config->metric_events, st);
if (!config->csv_output && !config->metric_only) {
print_noise(config, counter, noise);
print_running(config, run, ena);
}
}
static void aggr_update_shadow(struct perf_stat_config *config,
struct perf_evlist *evlist)
{
int cpu, s2, id, s;
u64 val;
struct perf_evsel *counter;
for (s = 0; s < config->aggr_map->nr; s++) {
id = config->aggr_map->map[s];
evlist__for_each_entry(evlist, counter) {
val = 0;
for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
s2 = config->aggr_get_id(config, evlist->cpus, cpu);
if (s2 != id)
continue;
val += perf_counts(counter->counts, cpu, 0)->val;
}
perf_stat__update_shadow_stats(counter, val,
first_shadow_cpu(config, counter, id),
&rt_stat);
}
}
}
static void uniquify_event_name(struct perf_evsel *counter)
{
char *new_name;
char *config;
if (counter->uniquified_name ||
!counter->pmu_name || !strncmp(counter->name, counter->pmu_name,
strlen(counter->pmu_name)))
return;
config = strchr(counter->name, '/');
if (config) {
if (asprintf(&new_name,
"%s%s", counter->pmu_name, config) > 0) {
free(counter->name);
counter->name = new_name;
}
} else {
if (asprintf(&new_name,
"%s [%s]", counter->name, counter->pmu_name) > 0) {
free(counter->name);
counter->name = new_name;
}
}
counter->uniquified_name = true;
}
static void collect_all_aliases(struct perf_stat_config *config, struct perf_evsel *counter,
void (*cb)(struct perf_stat_config *config, struct perf_evsel *counter, void *data,
bool first),
void *data)
{
struct perf_evlist *evlist = counter->evlist;
struct perf_evsel *alias;
alias = list_prepare_entry(counter, &(evlist->entries), node);
list_for_each_entry_continue (alias, &evlist->entries, node) {
if (strcmp(perf_evsel__name(alias), perf_evsel__name(counter)) ||
alias->scale != counter->scale ||
alias->cgrp != counter->cgrp ||
strcmp(alias->unit, counter->unit) ||
perf_evsel__is_clock(alias) != perf_evsel__is_clock(counter))
break;
alias->merged_stat = true;
cb(config, alias, data, false);
}
}
static bool collect_data(struct perf_stat_config *config, struct perf_evsel *counter,
void (*cb)(struct perf_stat_config *config, struct perf_evsel *counter, void *data,
bool first),
void *data)
{
if (counter->merged_stat)
return false;
cb(config, counter, data, true);
if (config->no_merge)
uniquify_event_name(counter);
else if (counter->auto_merge_stats)
collect_all_aliases(config, counter, cb, data);
return true;
}
struct aggr_data {
u64 ena, run, val;
int id;
int nr;
int cpu;
};
static void aggr_cb(struct perf_stat_config *config,
struct perf_evsel *counter, void *data, bool first)
{
struct aggr_data *ad = data;
int cpu, s2;
for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
struct perf_counts_values *counts;
s2 = config->aggr_get_id(config, perf_evsel__cpus(counter), cpu);
if (s2 != ad->id)
continue;
if (first)
ad->nr++;
counts = perf_counts(counter->counts, cpu, 0);
/*
* When any result is bad, make them all to give
* consistent output in interval mode.
*/
if (counts->ena == 0 || counts->run == 0 ||
counter->counts->scaled == -1) {
ad->ena = 0;
ad->run = 0;
break;
}
ad->val += counts->val;
ad->ena += counts->ena;
ad->run += counts->run;
}
}
static void print_counter_aggrdata(struct perf_stat_config *config,
struct perf_evsel *counter, int s,
char *prefix, bool metric_only,
bool *first)
{
struct aggr_data ad;
FILE *output = config->output;
u64 ena, run, val;
int id, nr;
double uval;
ad.id = id = config->aggr_map->map[s];
ad.val = ad.ena = ad.run = 0;
ad.nr = 0;
if (!collect_data(config, counter, aggr_cb, &ad))
return;
nr = ad.nr;
ena = ad.ena;
run = ad.run;
val = ad.val;
if (*first && metric_only) {
*first = false;
aggr_printout(config, counter, id, nr);
}
if (prefix && !metric_only)
fprintf(output, "%s", prefix);
uval = val * counter->scale;
printout(config, id, nr, counter, uval, prefix,
run, ena, 1.0, &rt_stat);
if (!metric_only)
fputc('\n', output);
}
static void print_aggr(struct perf_stat_config *config,
struct perf_evlist *evlist,
char *prefix)
{
bool metric_only = config->metric_only;
FILE *output = config->output;
struct perf_evsel *counter;
int s;
bool first;
if (!(config->aggr_map || config->aggr_get_id))
return;
aggr_update_shadow(config, evlist);
/*
* With metric_only everything is on a single line.
* Without each counter has its own line.
*/
for (s = 0; s < config->aggr_map->nr; s++) {
if (prefix && metric_only)
fprintf(output, "%s", prefix);
first = true;
evlist__for_each_entry(evlist, counter) {
print_counter_aggrdata(config, counter, s,
prefix, metric_only,
&first);
}
if (metric_only)
fputc('\n', output);
}
}
static int cmp_val(const void *a, const void *b)
{
return ((struct perf_aggr_thread_value *)b)->val -
((struct perf_aggr_thread_value *)a)->val;
}
static struct perf_aggr_thread_value *sort_aggr_thread(
struct perf_evsel *counter,
int nthreads, int ncpus,
int *ret,
struct target *_target)
{
int cpu, thread, i = 0;
double uval;
struct perf_aggr_thread_value *buf;
buf = calloc(nthreads, sizeof(struct perf_aggr_thread_value));
if (!buf)
return NULL;
for (thread = 0; thread < nthreads; thread++) {
u64 ena = 0, run = 0, val = 0;
for (cpu = 0; cpu < ncpus; cpu++) {
val += perf_counts(counter->counts, cpu, thread)->val;
ena += perf_counts(counter->counts, cpu, thread)->ena;
run += perf_counts(counter->counts, cpu, thread)->run;
}
uval = val * counter->scale;
/*
* Skip value 0 when enabling --per-thread globally,
* otherwise too many 0 output.
*/
if (uval == 0.0 && target__has_per_thread(_target))
continue;
buf[i].counter = counter;
buf[i].id = thread;
buf[i].uval = uval;
buf[i].val = val;
buf[i].run = run;
buf[i].ena = ena;
i++;
}
qsort(buf, i, sizeof(struct perf_aggr_thread_value), cmp_val);
if (ret)
*ret = i;
return buf;
}
static void print_aggr_thread(struct perf_stat_config *config,
struct target *_target,
struct perf_evsel *counter, char *prefix)
{
FILE *output = config->output;
int nthreads = thread_map__nr(counter->threads);
int ncpus = cpu_map__nr(counter->cpus);
int thread, sorted_threads, id;
struct perf_aggr_thread_value *buf;
buf = sort_aggr_thread(counter, nthreads, ncpus, &sorted_threads, _target);
if (!buf) {
perror("cannot sort aggr thread");
return;
}
for (thread = 0; thread < sorted_threads; thread++) {
if (prefix)
fprintf(output, "%s", prefix);
id = buf[thread].id;
if (config->stats)
printout(config, id, 0, buf[thread].counter, buf[thread].uval,
prefix, buf[thread].run, buf[thread].ena, 1.0,
&config->stats[id]);
else
printout(config, id, 0, buf[thread].counter, buf[thread].uval,
prefix, buf[thread].run, buf[thread].ena, 1.0,
&rt_stat);
fputc('\n', output);
}
free(buf);
}
struct caggr_data {
double avg, avg_enabled, avg_running;
};
static void counter_aggr_cb(struct perf_stat_config *config __maybe_unused,
struct perf_evsel *counter, void *data,
bool first __maybe_unused)
{
struct caggr_data *cd = data;
struct perf_stat_evsel *ps = counter->stats;
cd->avg += avg_stats(&ps->res_stats[0]);
cd->avg_enabled += avg_stats(&ps->res_stats[1]);
cd->avg_running += avg_stats(&ps->res_stats[2]);
}
/*
* Print out the results of a single counter:
* aggregated counts in system-wide mode
*/
static void print_counter_aggr(struct perf_stat_config *config,
struct perf_evsel *counter, char *prefix)
{
bool metric_only = config->metric_only;
FILE *output = config->output;
double uval;
struct caggr_data cd = { .avg = 0.0 };
if (!collect_data(config, counter, counter_aggr_cb, &cd))
return;
if (prefix && !metric_only)
fprintf(output, "%s", prefix);
uval = cd.avg * counter->scale;
printout(config, -1, 0, counter, uval, prefix, cd.avg_running, cd.avg_enabled,
cd.avg, &rt_stat);
if (!metric_only)
fprintf(output, "\n");
}
static void counter_cb(struct perf_stat_config *config __maybe_unused,
struct perf_evsel *counter, void *data,
bool first __maybe_unused)
{
struct aggr_data *ad = data;
ad->val += perf_counts(counter->counts, ad->cpu, 0)->val;
ad->ena += perf_counts(counter->counts, ad->cpu, 0)->ena;
ad->run += perf_counts(counter->counts, ad->cpu, 0)->run;
}
/*
* Print out the results of a single counter:
* does not use aggregated count in system-wide
*/
static void print_counter(struct perf_stat_config *config,
struct perf_evsel *counter, char *prefix)
{
FILE *output = config->output;
u64 ena, run, val;
double uval;
int cpu;
for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
struct aggr_data ad = { .cpu = cpu };
if (!collect_data(config, counter, counter_cb, &ad))
return;
val = ad.val;
ena = ad.ena;
run = ad.run;
if (prefix)
fprintf(output, "%s", prefix);
uval = val * counter->scale;
printout(config, cpu, 0, counter, uval, prefix, run, ena, 1.0,
&rt_stat);
fputc('\n', output);
}
}
static void print_no_aggr_metric(struct perf_stat_config *config,
struct perf_evlist *evlist,
char *prefix)
{
int cpu;
int nrcpus = 0;
struct perf_evsel *counter;
u64 ena, run, val;
double uval;
nrcpus = evlist->cpus->nr;
for (cpu = 0; cpu < nrcpus; cpu++) {
bool first = true;
if (prefix)
fputs(prefix, config->output);
evlist__for_each_entry(evlist, counter) {
if (first) {
aggr_printout(config, counter, cpu, 0);
first = false;
}
val = perf_counts(counter->counts, cpu, 0)->val;
ena = perf_counts(counter->counts, cpu, 0)->ena;
run = perf_counts(counter->counts, cpu, 0)->run;
uval = val * counter->scale;
printout(config, cpu, 0, counter, uval, prefix, run, ena, 1.0,
&rt_stat);
}
fputc('\n', config->output);
}
}
static int aggr_header_lens[] = {
[AGGR_CORE] = 24,
[AGGR_DIE] = 18,
[AGGR_SOCKET] = 12,
[AGGR_NONE] = 6,
[AGGR_THREAD] = 24,
[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_GLOBAL] = ""
};
static void print_metric_headers(struct perf_stat_config *config,
struct perf_evlist *evlist,
const char *prefix, bool no_indent)
{
struct perf_stat_output_ctx out;
struct perf_evsel *counter;
struct outstate os = {
.fh = config->output
};
if (prefix)
fprintf(config->output, "%s", prefix);
if (!config->csv_output && !no_indent)
fprintf(config->output, "%*s",
aggr_header_lens[config->aggr_mode], "");
if (config->csv_output) {
if (config->interval)
fputs("time,", config->output);
fputs(aggr_header_csv[config->aggr_mode], config->output);
}
/* Print metrics headers only */
evlist__for_each_entry(evlist, counter) {
os.evsel = counter;
out.ctx = &os;
out.print_metric = print_metric_header;
out.new_line = new_line_metric;
out.force_header = true;
os.evsel = counter;
perf_stat__print_shadow_stats(config, counter, 0,
0,
&out,
&config->metric_events,
&rt_stat);
}
fputc('\n', config->output);
}
static void print_interval(struct perf_stat_config *config,
struct perf_evlist *evlist,
char *prefix, struct timespec *ts)
{
bool metric_only = config->metric_only;
unsigned int unit_width = config->unit_width;
FILE *output = config->output;
static int num_print_interval;
if (config->interval_clear)
puts(CONSOLE_CLEAR);
sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, config->csv_sep);
if ((num_print_interval == 0 && !config->csv_output) || config->interval_clear) {
switch (config->aggr_mode) {
case AGGR_SOCKET:
fprintf(output, "# time socket cpus");
if (!metric_only)
fprintf(output, " counts %*s events\n", unit_width, "unit");
break;
case AGGR_DIE:
fprintf(output, "# time die cpus");
if (!metric_only)
fprintf(output, " counts %*s events\n", unit_width, "unit");
break;
case AGGR_CORE:
fprintf(output, "# time core cpus");
if (!metric_only)
fprintf(output, " counts %*s events\n", unit_width, "unit");
break;
case AGGR_NONE:
fprintf(output, "# time CPU ");
if (!metric_only)
fprintf(output, " counts %*s events\n", unit_width, "unit");
break;
case AGGR_THREAD:
fprintf(output, "# time comm-pid");
if (!metric_only)
fprintf(output, " counts %*s events\n", unit_width, "unit");
break;
case AGGR_GLOBAL:
default:
fprintf(output, "# time");
if (!metric_only)
fprintf(output, " counts %*s events\n", unit_width, "unit");
case AGGR_UNSET:
break;
}
}
if ((num_print_interval == 0 || config->interval_clear) && metric_only)
print_metric_headers(config, evlist, " ", true);
if (++num_print_interval == 25)
num_print_interval = 0;
}
static void print_header(struct perf_stat_config *config,
struct target *_target,
int argc, const char **argv)
{
FILE *output = config->output;
int i;
fflush(stdout);
if (!config->csv_output) {
fprintf(output, "\n");
fprintf(output, " Performance counter stats for ");
if (_target->system_wide)
fprintf(output, "\'system wide");
else if (_target->cpu_list)
fprintf(output, "\'CPU(s) %s", _target->cpu_list);
else if (!target__has_task(_target)) {
fprintf(output, "\'%s", argv ? argv[0] : "pipe");
for (i = 1; argv && (i < argc); i++)
fprintf(output, " %s", argv[i]);
} else if (_target->pid)
fprintf(output, "process id \'%s", _target->pid);
else
fprintf(output, "thread id \'%s", _target->tid);
fprintf(output, "\'");
if (config->run_count > 1)
fprintf(output, " (%d runs)", config->run_count);
fprintf(output, ":\n\n");
}
}
static int get_precision(double num)
{
if (num > 1)
return 0;
return lround(ceil(-log10(num)));
}
static void print_table(struct perf_stat_config *config,
FILE *output, int precision, double avg)
{
char tmp[64];
int idx, indent = 0;
scnprintf(tmp, 64, " %17.*f", precision, avg);
while (tmp[indent] == ' ')
indent++;
fprintf(output, "%*s# Table of individual measurements:\n", indent, "");
for (idx = 0; idx < config->run_count; idx++) {
double run = (double) config->walltime_run[idx] / NSEC_PER_SEC;
int h, n = 1 + abs((int) (100.0 * (run - avg)/run) / 5);
fprintf(output, " %17.*f (%+.*f) ",
precision, run, precision, run - avg);
for (h = 0; h < n; h++)
fprintf(output, "#");
fprintf(output, "\n");
}
fprintf(output, "\n%*s# Final result:\n", indent, "");
}
static double timeval2double(struct timeval *t)
{
return t->tv_sec + (double) t->tv_usec/USEC_PER_SEC;
}
static void print_footer(struct perf_stat_config *config)
{
double avg = avg_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
FILE *output = config->output;
int n;
if (!config->null_run)
fprintf(output, "\n");
if (config->run_count == 1) {
fprintf(output, " %17.9f seconds time elapsed", avg);
if (config->ru_display) {
double ru_utime = timeval2double(&config->ru_data.ru_utime);
double ru_stime = timeval2double(&config->ru_data.ru_stime);
fprintf(output, "\n\n");
fprintf(output, " %17.9f seconds user\n", ru_utime);
fprintf(output, " %17.9f seconds sys\n", ru_stime);
}
} else {
double sd = stddev_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
/*
* Display at most 2 more significant
* digits than the stddev inaccuracy.
*/
int precision = get_precision(sd) + 2;
if (config->walltime_run_table)
print_table(config, output, precision, avg);
fprintf(output, " %17.*f +- %.*f seconds time elapsed",
precision, avg, precision, sd);
print_noise_pct(config, sd, avg);
}
fprintf(output, "\n\n");
if (config->print_free_counters_hint &&
sysctl__read_int("kernel/nmi_watchdog", &n) >= 0 &&
n > 0)
fprintf(output,
"Some events weren't counted. Try disabling the NMI watchdog:\n"
" echo 0 > /proc/sys/kernel/nmi_watchdog\n"
" perf stat ...\n"
" echo 1 > /proc/sys/kernel/nmi_watchdog\n");
if (config->print_mixed_hw_group_error)
fprintf(output,
"The events in group usually have to be from "
"the same PMU. Try reorganizing the group.\n");
}
static void print_percore(struct perf_stat_config *config,
struct perf_evsel *counter, char *prefix)
{
bool metric_only = config->metric_only;
FILE *output = config->output;
int s;
bool first = true;
if (!(config->aggr_map || config->aggr_get_id))
return;
for (s = 0; s < config->aggr_map->nr; s++) {
if (prefix && metric_only)
fprintf(output, "%s", prefix);
print_counter_aggrdata(config, counter, s,
prefix, metric_only,
&first);
}
if (metric_only)
fputc('\n', output);
}
void
perf_evlist__print_counters(struct perf_evlist *evlist,
struct perf_stat_config *config,
struct target *_target,
struct timespec *ts,
int argc, const char **argv)
{
bool metric_only = config->metric_only;
int interval = config->interval;
struct perf_evsel *counter;
char buf[64], *prefix = NULL;
if (interval)
print_interval(config, evlist, prefix = buf, ts);
else
print_header(config, _target, argc, argv);
if (metric_only) {
static int num_print_iv;
if (num_print_iv == 0 && !interval)
print_metric_headers(config, evlist, prefix, false);
if (num_print_iv++ == 25)
num_print_iv = 0;
if (config->aggr_mode == AGGR_GLOBAL && prefix)
fprintf(config->output, "%s", prefix);
}
switch (config->aggr_mode) {
case AGGR_CORE:
case AGGR_DIE:
case AGGR_SOCKET:
print_aggr(config, evlist, prefix);
break;
case AGGR_THREAD:
evlist__for_each_entry(evlist, counter) {
print_aggr_thread(config, _target, counter, prefix);
}
break;
case AGGR_GLOBAL:
evlist__for_each_entry(evlist, counter) {
print_counter_aggr(config, counter, prefix);
}
if (metric_only)
fputc('\n', config->output);
break;
case AGGR_NONE:
if (metric_only)
print_no_aggr_metric(config, evlist, prefix);
else {
evlist__for_each_entry(evlist, counter) {
if (counter->percore)
print_percore(config, counter, prefix);
else
print_counter(config, counter, prefix);
}
}
break;
case AGGR_UNSET:
default:
break;
}
if (!interval && !config->csv_output)
print_footer(config);
fflush(config->output);
}
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