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-rw-r--r--tools/perf/builtin-stat.c230
1 files changed, 57 insertions, 173 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index d99d850e1444..d46dbb1bc65d 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -58,6 +58,7 @@
#include "util/cpumap.h"
#include "util/thread.h"
#include "util/thread_map.h"
+#include "util/counts.h"
#include <stdlib.h>
#include <sys/prctl.h>
@@ -101,8 +102,6 @@ static struct target target = {
static int run_count = 1;
static bool no_inherit = false;
-static bool scale = true;
-static enum aggr_mode aggr_mode = AGGR_GLOBAL;
static volatile pid_t child_pid = -1;
static bool null_run = false;
static int detailed_run = 0;
@@ -112,11 +111,9 @@ static int big_num_opt = -1;
static const char *csv_sep = NULL;
static bool csv_output = false;
static bool group = false;
-static FILE *output = NULL;
static const char *pre_cmd = NULL;
static const char *post_cmd = NULL;
static bool sync_run = false;
-static unsigned int interval = 0;
static unsigned int initial_delay = 0;
static unsigned int unit_width = 4; /* strlen("unit") */
static bool forever = false;
@@ -126,6 +123,11 @@ static int (*aggr_get_id)(struct cpu_map *m, int cpu);
static volatile int done = 0;
+static struct perf_stat_config stat_config = {
+ .aggr_mode = AGGR_GLOBAL,
+ .scale = true,
+};
+
static inline void diff_timespec(struct timespec *r, struct timespec *a,
struct timespec *b)
{
@@ -148,7 +150,7 @@ static int create_perf_stat_counter(struct perf_evsel *evsel)
{
struct perf_event_attr *attr = &evsel->attr;
- if (scale)
+ if (stat_config.scale)
attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED |
PERF_FORMAT_TOTAL_TIME_RUNNING;
@@ -178,142 +180,6 @@ static inline int nsec_counter(struct perf_evsel *evsel)
return 0;
}
-static void zero_per_pkg(struct perf_evsel *counter)
-{
- if (counter->per_pkg_mask)
- memset(counter->per_pkg_mask, 0, MAX_NR_CPUS);
-}
-
-static int check_per_pkg(struct perf_evsel *counter, int cpu, bool *skip)
-{
- unsigned long *mask = counter->per_pkg_mask;
- struct cpu_map *cpus = perf_evsel__cpus(counter);
- int s;
-
- *skip = false;
-
- if (!counter->per_pkg)
- return 0;
-
- if (cpu_map__empty(cpus))
- return 0;
-
- if (!mask) {
- mask = zalloc(MAX_NR_CPUS);
- if (!mask)
- return -ENOMEM;
-
- counter->per_pkg_mask = mask;
- }
-
- s = cpu_map__get_socket(cpus, cpu);
- if (s < 0)
- return -1;
-
- *skip = test_and_set_bit(s, mask) == 1;
- return 0;
-}
-
-static int
-process_counter_values(struct perf_evsel *evsel, int cpu, int thread,
- struct perf_counts_values *count)
-{
- struct perf_counts_values *aggr = &evsel->counts->aggr;
- static struct perf_counts_values zero;
- bool skip = false;
-
- if (check_per_pkg(evsel, cpu, &skip)) {
- pr_err("failed to read per-pkg counter\n");
- return -1;
- }
-
- if (skip)
- count = &zero;
-
- switch (aggr_mode) {
- case AGGR_THREAD:
- case AGGR_CORE:
- case AGGR_SOCKET:
- case AGGR_NONE:
- if (!evsel->snapshot)
- perf_evsel__compute_deltas(evsel, cpu, thread, count);
- perf_counts_values__scale(count, scale, NULL);
- if (aggr_mode == AGGR_NONE)
- perf_stat__update_shadow_stats(evsel, count->values, cpu);
- break;
- case AGGR_GLOBAL:
- aggr->val += count->val;
- if (scale) {
- aggr->ena += count->ena;
- aggr->run += count->run;
- }
- default:
- break;
- }
-
- return 0;
-}
-
-static int process_counter_maps(struct perf_evsel *counter)
-{
- int nthreads = thread_map__nr(counter->threads);
- int ncpus = perf_evsel__nr_cpus(counter);
- int cpu, thread;
-
- if (counter->system_wide)
- nthreads = 1;
-
- for (thread = 0; thread < nthreads; thread++) {
- for (cpu = 0; cpu < ncpus; cpu++) {
- if (process_counter_values(counter, cpu, thread,
- perf_counts(counter->counts, cpu, thread)))
- return -1;
- }
- }
-
- return 0;
-}
-
-static int process_counter(struct perf_evsel *counter)
-{
- struct perf_counts_values *aggr = &counter->counts->aggr;
- struct perf_stat *ps = counter->priv;
- u64 *count = counter->counts->aggr.values;
- int i, ret;
-
- aggr->val = aggr->ena = aggr->run = 0;
- init_stats(ps->res_stats);
-
- if (counter->per_pkg)
- zero_per_pkg(counter);
-
- ret = process_counter_maps(counter);
- if (ret)
- return ret;
-
- if (aggr_mode != AGGR_GLOBAL)
- return 0;
-
- if (!counter->snapshot)
- perf_evsel__compute_deltas(counter, -1, -1, aggr);
- perf_counts_values__scale(aggr, scale, &counter->counts->scaled);
-
- for (i = 0; i < 3; i++)
- update_stats(&ps->res_stats[i], count[i]);
-
- if (verbose) {
- fprintf(output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n",
- perf_evsel__name(counter), count[0], count[1], count[2]);
- }
-
- /*
- * Save the full runtime - to allow normalization during printout:
- */
- perf_stat__update_shadow_stats(counter, count, 0);
-
- return 0;
-}
-
/*
* Read out the results of a single counter:
* do not aggregate counts across CPUs in system-wide mode
@@ -351,7 +217,7 @@ static void read_counters(bool close_counters)
if (read_counter(counter))
pr_warning("failed to read counter %s\n", counter->name);
- if (process_counter(counter))
+ if (perf_stat_process_counter(&stat_config, counter))
pr_warning("failed to process counter %s\n", counter->name);
if (close_counters) {
@@ -402,6 +268,7 @@ static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *inf
static int __run_perf_stat(int argc, const char **argv)
{
+ int interval = stat_config.interval;
char msg[512];
unsigned long long t0, t1;
struct perf_evsel *counter;
@@ -545,13 +412,13 @@ static int run_perf_stat(int argc, const char **argv)
static void print_running(u64 run, u64 ena)
{
if (csv_output) {
- fprintf(output, "%s%" PRIu64 "%s%.2f",
+ fprintf(stat_config.output, "%s%" PRIu64 "%s%.2f",
csv_sep,
run,
csv_sep,
ena ? 100.0 * run / ena : 100.0);
} else if (run != ena) {
- fprintf(output, " (%.2f%%)", 100.0 * run / ena);
+ fprintf(stat_config.output, " (%.2f%%)", 100.0 * run / ena);
}
}
@@ -560,9 +427,9 @@ static void print_noise_pct(double total, double avg)
double pct = rel_stddev_stats(total, avg);
if (csv_output)
- fprintf(output, "%s%.2f%%", csv_sep, pct);
+ fprintf(stat_config.output, "%s%.2f%%", csv_sep, pct);
else if (pct)
- fprintf(output, " ( +-%6.2f%% )", pct);
+ fprintf(stat_config.output, " ( +-%6.2f%% )", pct);
}
static void print_noise(struct perf_evsel *evsel, double avg)
@@ -578,9 +445,9 @@ static void print_noise(struct perf_evsel *evsel, double avg)
static void aggr_printout(struct perf_evsel *evsel, int id, int nr)
{
- switch (aggr_mode) {
+ switch (stat_config.aggr_mode) {
case AGGR_CORE:
- fprintf(output, "S%d-C%*d%s%*d%s",
+ fprintf(stat_config.output, "S%d-C%*d%s%*d%s",
cpu_map__id_to_socket(id),
csv_output ? 0 : -8,
cpu_map__id_to_cpu(id),
@@ -590,7 +457,7 @@ static void aggr_printout(struct perf_evsel *evsel, int id, int nr)
csv_sep);
break;
case AGGR_SOCKET:
- fprintf(output, "S%*d%s%*d%s",
+ fprintf(stat_config.output, "S%*d%s%*d%s",
csv_output ? 0 : -5,
id,
csv_sep,
@@ -599,12 +466,12 @@ static void aggr_printout(struct perf_evsel *evsel, int id, int nr)
csv_sep);
break;
case AGGR_NONE:
- fprintf(output, "CPU%*d%s",
+ fprintf(stat_config.output, "CPU%*d%s",
csv_output ? 0 : -4,
perf_evsel__cpus(evsel)->map[id], csv_sep);
break;
case AGGR_THREAD:
- fprintf(output, "%*s-%*d%s",
+ fprintf(stat_config.output, "%*s-%*d%s",
csv_output ? 0 : 16,
thread_map__comm(evsel->threads, id),
csv_output ? 0 : -8,
@@ -619,6 +486,7 @@ static void aggr_printout(struct perf_evsel *evsel, int id, int nr)
static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg)
{
+ FILE *output = stat_config.output;
double msecs = avg / 1e6;
const char *fmt_v, *fmt_n;
char name[25];
@@ -643,7 +511,7 @@ static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg)
if (evsel->cgrp)
fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
- if (csv_output || interval)
+ if (csv_output || stat_config.interval)
return;
if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK))
@@ -655,6 +523,7 @@ static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg)
static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)
{
+ FILE *output = stat_config.output;
double sc = evsel->scale;
const char *fmt;
int cpu = cpu_map__id_to_cpu(id);
@@ -670,7 +539,7 @@ static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)
aggr_printout(evsel, id, nr);
- if (aggr_mode == AGGR_GLOBAL)
+ if (stat_config.aggr_mode == AGGR_GLOBAL)
cpu = 0;
fprintf(output, fmt, avg, csv_sep);
@@ -685,16 +554,18 @@ static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)
if (evsel->cgrp)
fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
- if (csv_output || interval)
+ if (csv_output || stat_config.interval)
return;
- perf_stat__print_shadow_stats(output, evsel, avg, cpu, aggr_mode);
+ perf_stat__print_shadow_stats(output, evsel, avg, cpu,
+ stat_config.aggr_mode);
}
static void print_aggr(char *prefix)
{
+ FILE *output = stat_config.output;
struct perf_evsel *counter;
- int cpu, cpu2, s, s2, id, nr;
+ int cpu, s, s2, id, nr;
double uval;
u64 ena, run, val;
@@ -707,8 +578,7 @@ static void print_aggr(char *prefix)
val = ena = run = 0;
nr = 0;
for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
- cpu2 = perf_evsel__cpus(counter)->map[cpu];
- s2 = aggr_get_id(evsel_list->cpus, cpu2);
+ s2 = aggr_get_id(perf_evsel__cpus(counter), cpu);
if (s2 != id)
continue;
val += perf_counts(counter->counts, cpu, 0)->val;
@@ -761,6 +631,7 @@ static void print_aggr(char *prefix)
static void print_aggr_thread(struct perf_evsel *counter, char *prefix)
{
+ FILE *output = stat_config.output;
int nthreads = thread_map__nr(counter->threads);
int ncpus = cpu_map__nr(counter->cpus);
int cpu, thread;
@@ -799,6 +670,7 @@ static void print_aggr_thread(struct perf_evsel *counter, char *prefix)
*/
static void print_counter_aggr(struct perf_evsel *counter, char *prefix)
{
+ FILE *output = stat_config.output;
struct perf_stat *ps = counter->priv;
double avg = avg_stats(&ps->res_stats[0]);
int scaled = counter->counts->scaled;
@@ -850,6 +722,7 @@ static void print_counter_aggr(struct perf_evsel *counter, char *prefix)
*/
static void print_counter(struct perf_evsel *counter, char *prefix)
{
+ FILE *output = stat_config.output;
u64 ena, run, val;
double uval;
int cpu;
@@ -904,12 +777,13 @@ static void print_counter(struct perf_evsel *counter, char *prefix)
static void print_interval(char *prefix, struct timespec *ts)
{
+ FILE *output = stat_config.output;
static int num_print_interval;
sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, csv_sep);
if (num_print_interval == 0 && !csv_output) {
- switch (aggr_mode) {
+ switch (stat_config.aggr_mode) {
case AGGR_SOCKET:
fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit");
break;
@@ -934,6 +808,7 @@ static void print_interval(char *prefix, struct timespec *ts)
static void print_header(int argc, const char **argv)
{
+ FILE *output = stat_config.output;
int i;
fflush(stdout);
@@ -963,6 +838,8 @@ static void print_header(int argc, const char **argv)
static void print_footer(void)
{
+ FILE *output = stat_config.output;
+
if (!null_run)
fprintf(output, "\n");
fprintf(output, " %17.9f seconds time elapsed",
@@ -977,6 +854,7 @@ static void print_footer(void)
static void print_counters(struct timespec *ts, int argc, const char **argv)
{
+ int interval = stat_config.interval;
struct perf_evsel *counter;
char buf[64], *prefix = NULL;
@@ -985,7 +863,7 @@ static void print_counters(struct timespec *ts, int argc, const char **argv)
else
print_header(argc, argv);
- switch (aggr_mode) {
+ switch (stat_config.aggr_mode) {
case AGGR_CORE:
case AGGR_SOCKET:
print_aggr(prefix);
@@ -1009,14 +887,14 @@ static void print_counters(struct timespec *ts, int argc, const char **argv)
if (!interval && !csv_output)
print_footer();
- fflush(output);
+ fflush(stat_config.output);
}
static volatile int signr = -1;
static void skip_signal(int signo)
{
- if ((child_pid == -1) || interval)
+ if ((child_pid == -1) || stat_config.interval)
done = 1;
signr = signo;
@@ -1064,7 +942,7 @@ static int stat__set_big_num(const struct option *opt __maybe_unused,
static int perf_stat_init_aggr_mode(void)
{
- switch (aggr_mode) {
+ switch (stat_config.aggr_mode) {
case AGGR_SOCKET:
if (cpu_map__build_socket_map(evsel_list->cpus, &aggr_map)) {
perror("cannot build socket map");
@@ -1270,7 +1148,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
"system-wide collection from all CPUs"),
OPT_BOOLEAN('g', "group", &group,
"put the counters into a counter group"),
- OPT_BOOLEAN('c', "scale", &scale, "scale/normalize counters"),
+ OPT_BOOLEAN('c', "scale", &stat_config.scale, "scale/normalize counters"),
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show counter open errors, etc)"),
OPT_INTEGER('r', "repeat", &run_count,
@@ -1286,7 +1164,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
stat__set_big_num),
OPT_STRING('C', "cpu", &target.cpu_list, "cpu",
"list of cpus to monitor in system-wide"),
- OPT_SET_UINT('A', "no-aggr", &aggr_mode,
+ OPT_SET_UINT('A', "no-aggr", &stat_config.aggr_mode,
"disable CPU count aggregation", AGGR_NONE),
OPT_STRING('x', "field-separator", &csv_sep, "separator",
"print counts with custom separator"),
@@ -1300,13 +1178,13 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
"command to run prior to the measured command"),
OPT_STRING(0, "post", &post_cmd, "command",
"command to run after to the measured command"),
- OPT_UINTEGER('I', "interval-print", &interval,
+ OPT_UINTEGER('I', "interval-print", &stat_config.interval,
"print counts at regular interval in ms (>= 100)"),
- OPT_SET_UINT(0, "per-socket", &aggr_mode,
+ OPT_SET_UINT(0, "per-socket", &stat_config.aggr_mode,
"aggregate counts per processor socket", AGGR_SOCKET),
- OPT_SET_UINT(0, "per-core", &aggr_mode,
+ OPT_SET_UINT(0, "per-core", &stat_config.aggr_mode,
"aggregate counts per physical processor core", AGGR_CORE),
- OPT_SET_UINT(0, "per-thread", &aggr_mode,
+ OPT_SET_UINT(0, "per-thread", &stat_config.aggr_mode,
"aggregate counts per thread", AGGR_THREAD),
OPT_UINTEGER('D', "delay", &initial_delay,
"ms to wait before starting measurement after program start"),
@@ -1318,6 +1196,8 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
};
int status = -EINVAL, run_idx;
const char *mode;
+ FILE *output = stderr;
+ unsigned int interval;
setlocale(LC_ALL, "");
@@ -1328,7 +1208,8 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
argc = parse_options(argc, argv, options, stat_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
- output = stderr;
+ interval = stat_config.interval;
+
if (output_name && strcmp(output_name, "-"))
output = NULL;
@@ -1365,6 +1246,8 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
}
}
+ stat_config.output = output;
+
if (csv_sep) {
csv_output = true;
if (!strcmp(csv_sep, "\\t"))
@@ -1399,7 +1282,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
run_count = 1;
}
- if ((aggr_mode == AGGR_THREAD) && !target__has_task(&target)) {
+ if ((stat_config.aggr_mode == AGGR_THREAD) && !target__has_task(&target)) {
fprintf(stderr, "The --per-thread option is only available "
"when monitoring via -p -t options.\n");
parse_options_usage(NULL, options, "p", 1);
@@ -1411,7 +1294,8 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
* no_aggr, cgroup are for system-wide only
* --per-thread is aggregated per thread, we dont mix it with cpu mode
*/
- if (((aggr_mode != AGGR_GLOBAL && aggr_mode != AGGR_THREAD) || nr_cgroups) &&
+ if (((stat_config.aggr_mode != AGGR_GLOBAL &&
+ stat_config.aggr_mode != AGGR_THREAD) || nr_cgroups) &&
!target__has_cpu(&target)) {
fprintf(stderr, "both cgroup and no-aggregation "
"modes only available in system-wide mode\n");
@@ -1444,7 +1328,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
* Initialize thread_map with comm names,
* so we could print it out on output.
*/
- if (aggr_mode == AGGR_THREAD)
+ if (stat_config.aggr_mode == AGGR_THREAD)
thread_map__read_comms(evsel_list->threads);
if (interval && interval < 100) {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.