#include "builtin.h"
#include "util/cgroup.h"
#include <subcmd/parse-options.h>
#include "util/parse-events.h"
#include "util/pmus.h"
#include "util/pmu.h"
#include "util/tool_pmu.h"
#include "util/event.h"
#include "util/evlist.h"
#include "util/evsel.h"
#include "util/debug.h"
#include "util/color.h"
#include "util/stat.h"
#include "util/header.h"
#include "util/cpumap.h"
#include "util/thread_map.h"
#include "util/counts.h"
#include "util/topdown.h"
#include "util/session.h"
#include "util/tool.h"
#include "util/string2.h"
#include "util/metricgroup.h"
#include "util/synthetic-events.h"
#include "util/target.h"
#include "util/time-utils.h"
#include "util/top.h"
#include "util/affinity.h"
#include "util/pfm.h"
#include "util/bpf_counter.h"
#include "util/iostat.h"
#include "util/util.h"
#include "util/intel-tpebs.h"
#include "asm/bug.h"
#include <linux/list_sort.h>
#include <linux/time64.h>
#include <linux/zalloc.h>
#include <api/fs/fs.h>
#include <errno.h>
#include <signal.h>
#include <stdlib.h>
#include <sys/prctl.h>
#include <inttypes.h>
#include <locale.h>
#include <math.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <linux/err.h>
#include <linux/ctype.h>
#include <perf/evlist.h>
#include <internal/threadmap.h>
#ifdef HAVE_BPF_SKEL
#include "util/bpf_skel/bperf_cgroup.h"
#endif
#define DEFAULT_SEPARATOR " "
#define FREEZE_ON_SMI_PATH "bus/event_source/devices/cpu/freeze_on_smi"
struct rusage_stats {
struct stats ru_utime_usec_stat;
struct stats ru_stime_usec_stat;
};
static void print_counters(struct timespec *ts, int argc, const char **argv);
static struct evlist *evsel_list;
static struct parse_events_option_args parse_events_option_args = {
.evlistp = &evsel_list,
};
static bool all_counters_use_bpf = true;
static struct target target;
static volatile sig_atomic_t child_pid = -1;
static int detailed_run = 0;
static bool transaction_run;
static bool topdown_run = false;
static bool smi_cost = false;
static bool smi_reset = false;
static int big_num_opt = -1;
static const char *pre_cmd = NULL;
static const char *post_cmd = NULL;
static bool sync_run = false;
static bool forever = false;
static bool force_metric_only = false;
static struct timespec ref_time;
static bool append_file;
static bool interval_count;
static const char *output_name;
static int output_fd;
static char *metrics;
static struct rusage_stats ru_stats;
struct perf_stat {
bool record;
struct perf_data data;
struct perf_session *session;
u64 bytes_written;
struct perf_tool tool;
bool maps_allocated;
struct perf_cpu_map *cpus;
struct perf_thread_map *threads;
enum aggr_mode aggr_mode;
u32 aggr_level;
};
static struct perf_stat perf_stat;
#define STAT_RECORD perf_stat.record
static volatile sig_atomic_t done = 0;
struct opt_aggr_mode {
bool node, socket, die, cluster, cache, core, thread, no_aggr;
};
static enum aggr_mode opt_aggr_mode_to_aggr_mode(struct opt_aggr_mode *opt_mode)
{
enum aggr_mode mode = AGGR_GLOBAL;
if (opt_mode->node)
mode = AGGR_NODE;
if (opt_mode->socket)
mode = AGGR_SOCKET;
if (opt_mode->die)
mode = AGGR_DIE;
if (opt_mode->cluster)
mode = AGGR_CLUSTER;
if (opt_mode->cache)
mode = AGGR_CACHE;
if (opt_mode->core)
mode = AGGR_CORE;
if (opt_mode->thread)
mode = AGGR_THREAD;
if (opt_mode->no_aggr)
mode = AGGR_NONE;
return mode;
}
static void evlist__check_cpu_maps(struct evlist *evlist)
{
struct evsel *evsel, *warned_leader = NULL;
evlist__for_each_entry(evlist, evsel) {
struct evsel *leader = evsel__leader(evsel);
if (leader == evsel)
continue;
if (perf_cpu_map__equal(leader->core.cpus, evsel->core.cpus))
continue;
if (warned_leader != leader) {
char buf[200];
pr_warning("WARNING: grouped events cpus do not match.\n"
"Events with CPUs not matching the leader will "
"be removed from the group.\n");
evsel__group_desc(leader, buf, sizeof(buf));
pr_warning(" %s\n", buf);
warned_leader = leader;
}
if (verbose > 0) {
char buf[200];
cpu_map__snprint(leader->core.cpus, buf, sizeof(buf));
pr_warning(" %s: %s\n", leader->name, buf);
cpu_map__snprint(evsel->core.cpus, buf, sizeof(buf));
pr_warning(" %s: %s\n", evsel->name, buf);
}
evsel__remove_from_group(evsel, leader);
}
}
static inline void diff_timespec(struct timespec *r, struct timespec *a,
struct timespec *b)
{
r->tv_sec = a->tv_sec - b->tv_sec;
if (a->tv_nsec < b->tv_nsec) {
r->tv_nsec = a->tv_nsec + NSEC_PER_SEC - b->tv_nsec;
r->tv_sec--;
} else {
r->tv_nsec = a->tv_nsec - b->tv_nsec ;
}
}
static void perf_stat__reset_stats(void)
{
evlist__reset_stats(evsel_list);
memset(stat_config.walltime_nsecs_stats, 0, sizeof(*stat_config.walltime_nsecs_stats));
}
static int process_synthesized_event(const struct perf_tool *tool __maybe_unused,
union perf_event *event,
struct perf_sample *sample __maybe_unused,
struct machine *machine __maybe_unused)
{
if (perf_data__write(&perf_stat.data, event, event->header.size) < 0) {
pr_err("failed to write perf data, error: %m\n");
return -1;
}
perf_stat.bytes_written += event->header.size;
return 0;
}
static int write_stat_round_event(u64 tm, u64 type)
{
return perf_event__synthesize_stat_round(NULL, tm, type,
process_synthesized_event,
NULL);
}
#define WRITE_STAT_ROUND_EVENT(time, interval) \
write_stat_round_event(time, PERF_STAT_ROUND_TYPE__ ## interval)
#define SID(e, x, y) xyarray__entry(e->core.sample_id, x, y)
static int evsel__write_stat_event(struct evsel *counter, int cpu_map_idx, u32 thread,
struct perf_counts_values *count)
{
struct perf_sample_id *sid = SID(counter, cpu_map_idx, thread);
struct perf_cpu cpu = perf_cpu_map__cpu(evsel__cpus(counter), cpu_map_idx);
return perf_event__synthesize_stat(NULL, cpu, thread, sid->id, count,
process_synthesized_event, NULL);
}
static int read_single_counter(struct evsel *counter, int cpu_map_idx, int thread)
{
int err = evsel__read_counter(counter, cpu_map_idx, thread);
if (err && cpu_map_idx == 0 &&
(evsel__tool_event(counter) == TOOL_PMU__EVENT_USER_TIME ||
evsel__tool_event(counter) == TOOL_PMU__EVENT_SYSTEM_TIME)) {
struct perf_counts_values *count =
perf_counts(counter->counts, cpu_map_idx, thread);
struct perf_counts_values *old_count = NULL;
u64 val;
if (counter->prev_raw_counts)
old_count = perf_counts(counter->prev_raw_counts, cpu_map_idx, thread);
if (evsel__tool_event(counter) == TOOL_PMU__EVENT_USER_TIME)
val = ru_stats.ru_utime_usec_stat.mean;
else
val = ru_stats.ru_stime_usec_stat.mean;
count->val = val;
if (old_count) {
count->run = old_count->run + 1;
count->ena = old_count->ena + 1;
} else {
count->run++;
count->ena++;
}
return 0;
}
return err;
}
static int read_counter_cpu(struct evsel *counter, int cpu_map_idx)
{
int nthreads = perf_thread_map__nr(evsel_list->core.threads);
int thread;
if (!counter->supported)
return -ENOENT;
for (thread = 0; thread < nthreads; thread++) {
struct perf_counts_values *count;
count = perf_counts(counter->counts, cpu_map_idx, thread);
if (!perf_counts__is_loaded(counter->counts, cpu_map_idx, thread) &&
read_single_counter(counter, cpu_map_idx, thread)) {
counter->counts->scaled = -1;
perf_counts(counter->counts, cpu_map_idx, thread)->ena = 0;
perf_counts(counter->counts, cpu_map_idx, thread)->run = 0;
return -1;
}
perf_counts__set_loaded(counter->counts, cpu_map_idx, thread, false);
if (STAT_RECORD) {
if (evsel__write_stat_event(counter, cpu_map_idx, thread, count)) {
pr_err("failed to write stat event\n");
return -1;
}
}
if (verbose > 1) {
fprintf(stat_config.output,
"%s: %d: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n",
evsel__name(counter),
perf_cpu_map__cpu(evsel__cpus(counter),
cpu_map_idx).cpu,
count->val, count->ena, count->run);
}
}
return 0;
}
static int read_counters_with_affinity(void)
{
struct evlist_cpu_iterator evlist_cpu_itr;
if (all_counters_use_bpf)
return 0;
evlist__for_each_cpu(evlist_cpu_itr, evsel_list) {
struct evsel *counter = evlist_cpu_itr.evsel;
if (evsel__is_bpf(counter))
continue;
if (evsel__is_tool(counter))
continue;
if (!counter->err)
counter->err = read_counter_cpu(counter, evlist_cpu_itr.cpu_map_idx);
}
return 0;
}
static int read_bpf_map_counters(void)
{
struct evsel *counter;
int err;
evlist__for_each_entry(evsel_list, counter) {
if (!evsel__is_bpf(counter))
continue;
err = bpf_counter__read(counter);
if (err)
return err;
}
return 0;
}
static int read_tool_counters(void)
{
struct evsel *counter;
evlist__for_each_entry(evsel_list, counter) {
int idx;
if (!evsel__is_tool(counter))
continue;
perf_cpu_map__for_each_idx(idx, counter->core.cpus) {
if (!counter->err)
counter->err = read_counter_cpu(counter, idx);
}
}
return 0;
}
static int read_counters(void)
{
int ret;
if (stat_config.stop_read_counter)
return 0;
ret = read_bpf_map_counters();
if (ret)
return ret;
ret = read_counters_with_affinity();
if (ret)
return ret;
return read_tool_counters();
}
static void process_counters(void)
{
struct evsel *counter;
evlist__for_each_entry(evsel_list, counter) {
if (counter->err)
pr_debug("failed to read counter %s\n", counter->name);
if (counter->err == 0 && perf_stat_process_counter(&stat_config, counter))
pr_warning("failed to process counter %s\n", counter->name);
counter->err = 0;
}
perf_stat_merge_counters(&stat_config, evsel_list);
perf_stat_process_percore(&stat_config, evsel_list);
}
static void process_interval(void)
{
struct timespec ts, rs;
clock_gettime(CLOCK_MONOTONIC, &ts);
diff_timespec(&rs, &ts, &ref_time);
evlist__reset_aggr_stats(evsel_list);
if (read_counters() == 0)
process_counters();
if (STAT_RECORD) {
if (WRITE_STAT_ROUND_EVENT(rs.tv_sec * NSEC_PER_SEC + rs.tv_nsec, INTERVAL))
pr_err("failed to write stat round event\n");
}
init_stats(stat_config.walltime_nsecs_stats);
update_stats(stat_config.walltime_nsecs_stats, stat_config.interval * 1000000ULL);
print_counters(&rs, 0, NULL);
}
static bool handle_interval(unsigned int interval, int *times)
{
if (interval) {
process_interval();
if (interval_count && !(--(*times)))
return true;
}
return false;
}
static int enable_counters(void)
{
struct evsel *evsel;
int err;
evlist__for_each_entry(evsel_list, evsel) {
if (!evsel__is_bpf(evsel))
continue;
err = bpf_counter__enable(evsel);
if (err)
return err;
}
if (!target__enable_on_exec(&target)) {
if (!all_counters_use_bpf)
evlist__enable(evsel_list);
}
return 0;
}
static void disable_counters(void)
{
struct evsel *counter;
if (!target__none(&target)) {
evlist__for_each_entry(evsel_list, counter)
bpf_counter__disable(counter);
if (!all_counters_use_bpf)
evlist__disable(evsel_list);
}
}
static volatile sig_atomic_t workload_exec_errno;
static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *info,
void *ucontext __maybe_unused)
{
workload_exec_errno = info->si_value.sival_int;
}
static bool evsel__should_store_id(struct evsel *counter)
{
return STAT_RECORD || counter->core.attr.read_format & PERF_FORMAT_ID;
}
static bool is_target_alive(struct target *_target,
struct perf_thread_map *threads)
{
struct stat st;
int i;
if (!target__has_task(_target))
return true;
for (i = 0; i < threads->nr; i++) {
char path[PATH_MAX];
scnprintf(path, PATH_MAX, "%s/%d", procfs__mountpoint(),
threads->map[i].pid);
if (!stat(path, &st))
return true;
}
return false;
}
static void process_evlist(struct evlist *evlist, unsigned int interval)
{
enum evlist_ctl_cmd cmd = EVLIST_CTL_CMD_UNSUPPORTED;
if (evlist__ctlfd_process(evlist, &cmd) > 0) {
switch (cmd) {
case EVLIST_CTL_CMD_ENABLE:
fallthrough;
case EVLIST_CTL_CMD_DISABLE:
if (interval)
process_interval();
break;
case EVLIST_CTL_CMD_SNAPSHOT:
case EVLIST_CTL_CMD_ACK:
case EVLIST_CTL_CMD_UNSUPPORTED:
case EVLIST_CTL_CMD_EVLIST:
case EVLIST_CTL_CMD_STOP:
case EVLIST_CTL_CMD_PING:
default:
break;
}
}
}
static void compute_tts(struct timespec *time_start, struct timespec *time_stop,
int *time_to_sleep)
{
int tts = *time_to_sleep;
struct timespec time_diff;
diff_timespec(&time_diff, time_stop, time_start);
tts -= time_diff.tv_sec * MSEC_PER_SEC +
time_diff.tv_nsec / NSEC_PER_MSEC;
if (tts < 0)
tts = 0;
*time_to_sleep = tts;
}
static int dispatch_events(bool forks, int timeout, int interval, int *times)
{
int child_exited = 0, status = 0;
int time_to_sleep, sleep_time;
struct timespec time_start, time_stop;
if (interval)
sleep_time = interval;
else if (timeout)
sleep_time = timeout;
else
sleep_time = 1000;
time_to_sleep = sleep_time;
while (!done) {
if (forks)
child_exited = waitpid(child_pid, &status, WNOHANG);
else
child_exited = !is_target_alive(&target, evsel_list->core.threads) ? 1 : 0;
if (child_exited)
break;
clock_gettime(CLOCK_MONOTONIC, &time_start);
if (!(evlist__poll(evsel_list, time_to_sleep) > 0)) {
if (timeout || handle_interval(interval, times))
break;
time_to_sleep = sleep_time;
} else {
process_evlist(evsel_list, interval);
clock_gettime(CLOCK_MONOTONIC, &time_stop);
compute_tts(&time_start, &time_stop, &time_to_sleep);
}
}
return status;
}
enum counter_recovery {
COUNTER_SKIP,
COUNTER_RETRY,
};
static enum counter_recovery stat_handle_error(struct evsel *counter, int err)
{
char msg[BUFSIZ];
assert(!counter->supported);
if (err == EINVAL || err == ENOSYS || err == ENOENT || err == ENXIO) {
if (verbose > 0) {
evsel__open_strerror(counter, &target, err, msg, sizeof(msg));
ui__warning("%s event is not supported by the kernel.\n%s\n",
evsel__name(counter), msg);
}
return COUNTER_SKIP;
}
if (evsel__fallback(counter, &target, err, msg, sizeof(msg))) {
if (verbose > 0)
ui__warning("%s\n", msg);
counter->supported = true;
return COUNTER_RETRY;
}
if (target__has_per_thread(&target) && err != EOPNOTSUPP &&
evsel_list->core.threads && evsel_list->core.threads->err_thread != -1) {
if (!thread_map__remove(evsel_list->core.threads,
evsel_list->core.threads->err_thread)) {
evsel_list->core.threads->err_thread = -1;
counter->supported = true;
return COUNTER_RETRY;
}
}
if (verbose > 0) {
evsel__open_strerror(counter, &target, err, msg, sizeof(msg));
ui__warning(err == EOPNOTSUPP
? "%s event is not supported by the kernel.\n%s\n"
: "skipping event %s that kernel failed to open.\n%s\n",
evsel__name(counter), msg);
}
return COUNTER_SKIP;
}
static int create_perf_stat_counter(struct evsel *evsel,
struct perf_stat_config *config,
int cpu_map_idx)
{
struct perf_event_attr *attr = &evsel->core.attr;
struct evsel *leader = evsel__leader(evsel);
attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED |
PERF_FORMAT_TOTAL_TIME_RUNNING;
if (leader->core.nr_members > 1)
attr->read_format |= PERF_FORMAT_ID|PERF_FORMAT_GROUP;
attr->inherit = !config->no_inherit && list_empty(&evsel->bpf_counter_list);
attr->sample_period = 0;
if (config->identifier)
attr->sample_type = PERF_SAMPLE_IDENTIFIER;
if (config->all_user) {
attr->exclude_kernel = 1;
attr->exclude_user = 0;
}
if (config->all_kernel) {
attr->exclude_kernel = 0;
attr->exclude_user = 1;
}
if (evsel__is_group_leader(evsel)) {
attr->disabled = 1;
if (target__enable_on_exec(&target))
attr->enable_on_exec = 1;
}
return evsel__open_per_cpu_and_thread(evsel, evsel__cpus(evsel), cpu_map_idx,
evsel->core.threads);
}
static void update_rusage_stats(const struct rusage *rusage)
{
const u64 us_to_ns = 1000;
const u64 s_to_ns = 1000000000;
update_stats(&ru_stats.ru_utime_usec_stat,
(rusage->ru_utime.tv_usec * us_to_ns + rusage->ru_utime.tv_sec * s_to_ns));
update_stats(&ru_stats.ru_stime_usec_stat,
(rusage->ru_stime.tv_usec * us_to_ns + rusage->ru_stime.tv_sec * s_to_ns));
}
static int __run_perf_stat(int argc, const char **argv, int run_idx)
{
int interval = stat_config.interval;
int times = stat_config.times;
int timeout = stat_config.timeout;
char msg[BUFSIZ];
unsigned long long t0, t1;
struct evsel *counter;
size_t l;
int status = 0;
const bool forks = (argc > 0);
bool is_pipe = STAT_RECORD ? perf_stat.data.is_pipe : false;
struct evlist_cpu_iterator evlist_cpu_itr;
int err, open_err = 0;
bool second_pass = false, has_supported_counters;
if (forks) {
if (evlist__prepare_workload(evsel_list, &target, argv, is_pipe, workload_exec_failed_signal) < 0) {
perror("failed to prepare workload");
return -1;
}
child_pid = evsel_list->workload.pid;
}
evlist__for_each_entry(evsel_list, counter) {
counter->reset_group = false;
if (bpf_counter__load(counter, &target)) {
err = -1;
goto err_out;
}
if (!(evsel__is_bperf(counter)))
all_counters_use_bpf = false;
}
evlist__reset_aggr_stats(evsel_list);
if (!target.use_bpf) {
evlist__for_each_cpu(evlist_cpu_itr, evsel_list) {
counter = evlist_cpu_itr.evsel;
if (counter->reset_group || !counter->supported)
continue;
if (evsel__is_bperf(counter))
continue;
while (true) {
if (create_perf_stat_counter(counter, &stat_config,
evlist_cpu_itr.cpu_map_idx) == 0)
break;
open_err = errno;
if ((open_err == EINVAL || open_err == EBADF) &&
evsel__leader(counter) != counter &&
counter->weak_group) {
evlist__reset_weak_group(evsel_list, counter, false);
assert(counter->reset_group);
counter->supported = true;
second_pass = true;
break;
}
if (stat_handle_error(counter, open_err) != COUNTER_RETRY)
break;
}
}
}
if (second_pass) {
evlist__for_each_cpu(evlist_cpu_itr, evsel_list) {
counter = evlist_cpu_itr.evsel;
if (!counter->reset_group && counter->supported)
continue;
perf_evsel__close_cpu(&counter->core, evlist_cpu_itr.cpu_map_idx);
}
evlist__for_each_cpu(evlist_cpu_itr, evsel_list) {
counter = evlist_cpu_itr.evsel;
if (!counter->reset_group)
continue;
while (true) {
pr_debug2("reopening weak %s\n", evsel__name(counter));
if (create_perf_stat_counter(counter, &stat_config,
evlist_cpu_itr.cpu_map_idx) == 0) {
evlist_cpu_iterator__exit(&evlist_cpu_itr);
break;
}
open_err = errno;
if (stat_handle_error(counter, open_err) != COUNTER_RETRY) {
evlist_cpu_iterator__exit(&evlist_cpu_itr);
break;
}
}
}
}
has_supported_counters = false;
evlist__for_each_entry(evsel_list, counter) {
if (!counter->supported) {
perf_evsel__free_fd(&counter->core);
continue;
}
has_supported_counters = true;
l = strlen(counter->unit);
if (l > stat_config.unit_width)
stat_config.unit_width = l;
if (evsel__should_store_id(counter) &&
evsel__store_ids(counter, evsel_list)) {
err = -1;
goto err_out;
}
}
if (!has_supported_counters && !stat_config.null_run) {
if (open_err) {
evsel__open_strerror(evlist__first(evsel_list), &target, open_err,
msg, sizeof(msg));
}
ui__error("No supported events found.\n%s\n", msg);
if (child_pid != -1)
kill(child_pid, SIGTERM);
err = -1;
goto err_out;
}
if (evlist__apply_filters(evsel_list, &counter, &target)) {
pr_err("failed to set filter \"%s\" on event %s: %m\n",
counter->filter, evsel__name(counter));
return -1;
}
if (STAT_RECORD) {
int fd = perf_data__fd(&perf_stat.data);
if (is_pipe) {
err = perf_header__write_pipe(perf_data__fd(&perf_stat.data));
} else {
err = perf_session__write_header(perf_stat.session, evsel_list,
fd, false);
}
if (err < 0)
goto err_out;
err = perf_event__synthesize_stat_events(&stat_config, NULL, evsel_list,
process_synthesized_event, is_pipe);
if (err < 0)
goto err_out;
}
if (target.initial_delay) {
pr_info(EVLIST_DISABLED_MSG);
} else {
err = enable_counters();
if (err) {
err = -1;
goto err_out;
}
}
if (forks)
evlist__start_workload(evsel_list);
if (target.initial_delay > 0) {
usleep(target.initial_delay * USEC_PER_MSEC);
err = enable_counters();
if (err) {
err = -1;
goto err_out;
}
pr_info(EVLIST_ENABLED_MSG);
}
t0 = rdclock();
clock_gettime(CLOCK_MONOTONIC, &ref_time);
if (forks) {
if (interval || timeout || evlist__ctlfd_initialized(evsel_list))
status = dispatch_events(forks, timeout, interval, ×);
if (child_pid != -1) {
if (timeout)
kill(child_pid, SIGTERM);
wait4(child_pid, &status, 0, &stat_config.ru_data);
}
if (workload_exec_errno) {
errno = workload_exec_errno;
pr_err("Workload failed: %m\n");
err = -1;
goto err_out;
}
if (WIFSIGNALED(status)) {
err = 0 - (128 + WTERMSIG(status));
psignal(WTERMSIG(status), argv[0]);
} else {
err = WEXITSTATUS(status);
}
} else {
err = dispatch_events(forks, timeout, interval, ×);
}
disable_counters();
t1 = rdclock();
if (stat_config.walltime_run_table)
stat_config.walltime_run[run_idx] = t1 - t0;
if (interval && stat_config.summary) {
stat_config.interval = 0;
stat_config.stop_read_counter = true;
init_stats(stat_config.walltime_nsecs_stats);
update_stats(stat_config.walltime_nsecs_stats, t1 - t0);
evlist__copy_prev_raw_counts(evsel_list);
evlist__reset_prev_raw_counts(evsel_list);
evlist__reset_aggr_stats(evsel_list);
} else {
update_stats(stat_config.walltime_nsecs_stats, t1 - t0);
update_rusage_stats(&stat_config.ru_data);
}
if (read_counters() == 0)
process_counters();
if (!STAT_RECORD)
evlist__close(evsel_list);
return err;
err_out:
if (forks)
evlist__cancel_workload(evsel_list);
return err;
}
static int run_perf_stat(int argc, const char **argv, int run_idx)
{
int ret;
if (pre_cmd) {
ret = system(pre_cmd);
if (ret)
return ret;
}
if (sync_run)
sync();
ret = __run_perf_stat(argc, argv, run_idx);
if (ret)
return ret;
if (post_cmd) {
ret = system(post_cmd);
if (ret)
return ret;
}
return ret;
}
static void print_counters(struct timespec *ts, int argc, const char **argv)
{
if (STAT_RECORD && perf_stat.data.is_pipe)
return;
if (quiet)
return;
evlist__print_counters(evsel_list, &stat_config, &target, ts, argc, argv);
}
static volatile sig_atomic_t signr = -1;
static void skip_signal(int signo)
{
if ((child_pid == -1) || stat_config.interval)
done = 1;
signr = signo;
child_pid = -1;
}
static void sig_atexit(void)
{
sigset_t set, oset;
sigemptyset(&set);
sigaddset(&set, SIGCHLD);
sigprocmask(SIG_BLOCK, &set, &oset);
if (child_pid != -1)
kill(child_pid, SIGTERM);
sigprocmask(SIG_SETMASK, &oset, NULL);
if (signr == -1)
return;
signal(signr, SIG_DFL);
kill(getpid(), signr);
}
static int stat__set_big_num(const struct option *opt __maybe_unused,
const char *s __maybe_unused, int unset)
{
big_num_opt = unset ? 0 : 1;
perf_stat__set_big_num(!unset);
return 0;
}
static int enable_metric_only(const struct option *opt __maybe_unused,
const char *s __maybe_unused, int unset)
{
force_metric_only = true;
stat_config.metric_only = !unset;
return 0;
}
static int append_metric_groups(const struct option *opt __maybe_unused,
const char *str,
int unset __maybe_unused)
{
if (metrics) {
char *tmp;
if (asprintf(&tmp, "%s,%s", metrics, str) < 0)
return -ENOMEM;
free(metrics);
metrics = tmp;
} else {
metrics = strdup(str);
if (!metrics)
return -ENOMEM;
}
return 0;
}
static int parse_control_option(const struct option *opt,
const char *str,
int unset __maybe_unused)
{
struct perf_stat_config *config = opt->value;
return evlist__parse_control(str, &config->ctl_fd, &config->ctl_fd_ack, &config->ctl_fd_close);
}
static int parse_stat_cgroups(const struct option *opt,
const char *str, int unset)
{
if (stat_config.cgroup_list) {
pr_err("--cgroup and --for-each-cgroup cannot be used together\n");
return -1;
}
return parse_cgroups(opt, str, unset);
}
static int parse_cputype(const struct option *opt,
const char *str,
int unset __maybe_unused)
{
const struct perf_pmu *pmu;
struct evlist *evlist = *(struct evlist **)opt->value;
if (!list_empty(&evlist->core.entries)) {
fprintf(stderr, "Must define cputype before events/metrics\n");
return -1;
}
pmu = perf_pmus__pmu_for_pmu_filter(str);
if (!pmu) {
fprintf(stderr, "--cputype %s is not supported!\n", str);
return -1;
}
parse_events_option_args.pmu_filter = pmu->name;
return 0;
}
static int parse_cache_level(const struct option *opt,
const char *str,
int unset __maybe_unused)
{
int level;
struct opt_aggr_mode *opt_aggr_mode = (struct opt_aggr_mode *)opt->value;
u32 *aggr_level = (u32 *)opt->data;
if (str == NULL) {
level = MAX_CACHE_LVL + 1;
goto out;
}
if (strlen(str) != 2 || (str[0] != 'l' && str[0] != 'L')) {
pr_err("Cache level must be of form L[1-%d], or l[1-%d]\n",
MAX_CACHE_LVL,
MAX_CACHE_LVL);
return -EINVAL;
}
level = atoi(&str[1]);
if (level < 1) {
pr_err("Cache level must be of form L[1-%d], or l[1-%d]\n",
MAX_CACHE_LVL,
MAX_CACHE_LVL);
return -EINVAL;
}
if (level > MAX_CACHE_LVL) {
pr_err("perf only supports max cache level of %d.\n"
"Consider increasing MAX_CACHE_LVL\n", MAX_CACHE_LVL);
return -EINVAL;
}
out:
opt_aggr_mode->cache = true;
*aggr_level = level;
return 0;
}
static int cpu__get_cache_id_from_map(struct perf_cpu cpu, char *map)
{
int id;
struct perf_cpu_map *cpu_map = perf_cpu_map__new(map);
id = perf_cpu_map__min(cpu_map).cpu;
if (id == -1)
id = cpu.cpu;
perf_cpu_map__put(cpu_map);
return id;
}
static int cpu__get_cache_details(struct perf_cpu cpu, struct perf_cache *cache)
{
int ret = 0;
u32 cache_level = stat_config.aggr_level;
struct cpu_cache_level caches[MAX_CACHE_LVL];
u32 i = 0, caches_cnt = 0;
cache->cache_lvl = (cache_level > MAX_CACHE_LVL) ? 0 : cache_level;
cache->cache = -1;
ret = build_caches_for_cpu(cpu.cpu, caches, &caches_cnt);
if (ret) {
if (caches_cnt)
goto free_caches;
return ret;
}
if (!caches_cnt)
return -1;
if (cache_level > MAX_CACHE_LVL) {
int max_level_index = 0;
for (i = 1; i < caches_cnt; ++i) {
if (caches[i].level > caches[max_level_index].level)
max_level_index = i;
}
cache->cache_lvl = caches[max_level_index].level;
cache->cache = cpu__get_cache_id_from_map(cpu, caches[max_level_index].map);
i = 0;
goto free_caches;
}
for (i = 0; i < caches_cnt; ++i) {
if (caches[i].level == cache_level) {
cache->cache_lvl = cache_level;
cache->cache = cpu__get_cache_id_from_map(cpu, caches[i].map);
}
cpu_cache_level__free(&caches[i]);
}
free_caches:
while (i < caches_cnt)
cpu_cache_level__free(&caches[i++]);
return ret;
}
static struct aggr_cpu_id aggr_cpu_id__cache(struct perf_cpu cpu, void *data)
{
int ret;
struct aggr_cpu_id id;
struct perf_cache cache;
id = aggr_cpu_id__die(cpu, data);
if (aggr_cpu_id__is_empty(&id))
return id;
ret = cpu__get_cache_details(cpu, &cache);
if (ret)
return id;
id.cache_lvl = cache.cache_lvl;
id.cache = cache.cache;
return id;
}
static const char *const aggr_mode__string[] = {
[AGGR_CORE] = "core",
[AGGR_CACHE] = "cache",
[AGGR_CLUSTER] = "cluster",
[AGGR_DIE] = "die",
[AGGR_GLOBAL] = "global",
[AGGR_NODE] = "node",
[AGGR_NONE] = "none",
[AGGR_SOCKET] = "socket",
[AGGR_THREAD] = "thread",
[AGGR_UNSET] = "unset",
};
static struct aggr_cpu_id perf_stat__get_socket(struct perf_stat_config *config __maybe_unused,
struct perf_cpu cpu)
{
return aggr_cpu_id__socket(cpu, NULL);
}
static struct aggr_cpu_id perf_stat__get_die(struct perf_stat_config *config __maybe_unused,
struct perf_cpu cpu)
{
return aggr_cpu_id__die(cpu, NULL);
}
static struct aggr_cpu_id perf_stat__get_cache_id(struct perf_stat_config *config __maybe_unused,
struct perf_cpu cpu)
{
return aggr_cpu_id__cache(cpu, NULL);
}
static struct aggr_cpu_id perf_stat__get_cluster(struct perf_stat_config *config __maybe_unused,
struct perf_cpu cpu)
{
return aggr_cpu_id__cluster(cpu, NULL);
}
static struct aggr_cpu_id perf_stat__get_core(struct perf_stat_config *config __maybe_unused,
struct perf_cpu cpu)
{
return aggr_cpu_id__core(cpu, NULL);
}
static struct aggr_cpu_id perf_stat__get_node(struct perf_stat_config *config __maybe_unused,
struct perf_cpu cpu)
{
return aggr_cpu_id__node(cpu, NULL);
}
static struct aggr_cpu_id perf_stat__get_global(struct perf_stat_config *config __maybe_unused,
struct perf_cpu cpu)
{
return aggr_cpu_id__global(cpu, NULL);
}
static struct aggr_cpu_id perf_stat__get_cpu(struct perf_stat_config *config __maybe_unused,
struct perf_cpu cpu)
{
return aggr_cpu_id__cpu(cpu, NULL);
}
static struct aggr_cpu_id perf_stat__get_aggr(struct perf_stat_config *config,
aggr_get_id_t get_id, struct perf_cpu cpu)
{
struct aggr_cpu_id id;
if (cpu.cpu == -1 || cpu.cpu >= config->cpus_aggr_map->nr)
return get_id(config, cpu);
if (aggr_cpu_id__is_empty(&config->cpus_aggr_map->map[cpu.cpu]))
config->cpus_aggr_map->map[cpu.cpu] = get_id(config, cpu);
id = config->cpus_aggr_map->map[cpu.cpu];
return id;
}
static struct aggr_cpu_id perf_stat__get_socket_cached(struct perf_stat_config *config,
struct perf_cpu cpu)
{
return perf_stat__get_aggr(config, perf_stat__get_socket, cpu);
}
static struct aggr_cpu_id perf_stat__get_die_cached(struct perf_stat_config *config,
struct perf_cpu cpu)
{
return perf_stat__get_aggr(config, perf_stat__get_die, cpu);
}
static struct aggr_cpu_id perf_stat__get_cluster_cached(struct perf_stat_config *config,
struct perf_cpu cpu)
{
return perf_stat__get_aggr(config, perf_stat__get_cluster, cpu);
}
static struct aggr_cpu_id perf_stat__get_cache_id_cached(struct perf_stat_config *config,
struct perf_cpu cpu)
{
return perf_stat__get_aggr(config, perf_stat__get_cache_id, cpu);
}
static struct aggr_cpu_id perf_stat__get_core_cached(struct perf_stat_config *config,
struct perf_cpu cpu)
{
return perf_stat__get_aggr(config, perf_stat__get_core, cpu);
}
static struct aggr_cpu_id perf_stat__get_node_cached(struct perf_stat_config *config,
struct perf_cpu cpu)
{
return perf_stat__get_aggr(config, perf_stat__get_node, cpu);
}
static struct aggr_cpu_id perf_stat__get_global_cached(struct perf_stat_config *config,
struct perf_cpu cpu)
{
return perf_stat__get_aggr(config, perf_stat__get_global, cpu);
}
static struct aggr_cpu_id perf_stat__get_cpu_cached(struct perf_stat_config *config,
struct perf_cpu cpu)
{
return perf_stat__get_aggr(config, perf_stat__get_cpu, cpu);
}
static aggr_cpu_id_get_t aggr_mode__get_aggr(enum aggr_mode aggr_mode)
{
switch (aggr_mode) {
case AGGR_SOCKET:
return aggr_cpu_id__socket;
case AGGR_DIE:
return aggr_cpu_id__die;
case AGGR_CLUSTER:
return aggr_cpu_id__cluster;
case AGGR_CACHE:
return aggr_cpu_id__cache;
case AGGR_CORE:
return aggr_cpu_id__core;
case AGGR_NODE:
return aggr_cpu_id__node;
case AGGR_NONE:
return aggr_cpu_id__cpu;
case AGGR_GLOBAL:
return aggr_cpu_id__global;
case AGGR_THREAD:
case AGGR_UNSET:
case AGGR_MAX:
default:
return NULL;
}
}
static aggr_get_id_t aggr_mode__get_id(enum aggr_mode aggr_mode)
{
switch (aggr_mode) {
case AGGR_SOCKET:
return perf_stat__get_socket_cached;
case AGGR_DIE:
return perf_stat__get_die_cached;
case AGGR_CLUSTER:
return perf_stat__get_cluster_cached;
case AGGR_CACHE:
return perf_stat__get_cache_id_cached;
case AGGR_CORE:
return perf_stat__get_core_cached;
case AGGR_NODE:
return perf_stat__get_node_cached;
case AGGR_NONE:
return perf_stat__get_cpu_cached;
case AGGR_GLOBAL:
return perf_stat__get_global_cached;
case AGGR_THREAD:
case AGGR_UNSET:
case AGGR_MAX:
default:
return NULL;
}
}
static int perf_stat_init_aggr_mode(void)
{
int nr;
aggr_cpu_id_get_t get_id = aggr_mode__get_aggr(stat_config.aggr_mode);
if (get_id) {
bool needs_sort = stat_config.aggr_mode != AGGR_NONE;
stat_config.aggr_map = cpu_aggr_map__new(evsel_list->core.user_requested_cpus,
get_id, NULL, needs_sort);
if (!stat_config.aggr_map) {
pr_err("cannot build %s map\n", aggr_mode__string[stat_config.aggr_mode]);
return -1;
}
stat_config.aggr_get_id = aggr_mode__get_id(stat_config.aggr_mode);
}
if (stat_config.aggr_mode == AGGR_THREAD) {
nr = perf_thread_map__nr(evsel_list->core.threads);
stat_config.aggr_map = cpu_aggr_map__empty_new(nr);
if (stat_config.aggr_map == NULL)
return -ENOMEM;
for (int s = 0; s < nr; s++) {
struct aggr_cpu_id id = aggr_cpu_id__empty();
id.thread_idx = s;
stat_config.aggr_map->map[s] = id;
}
return 0;
}
nr = perf_cpu_map__max(evsel_list->core.all_cpus).cpu + 1;
stat_config.cpus_aggr_map = cpu_aggr_map__empty_new(nr);
return stat_config.cpus_aggr_map ? 0 : -ENOMEM;
}
static void cpu_aggr_map__delete(struct cpu_aggr_map *map)
{
free(map);
}
static void perf_stat__exit_aggr_mode(void)
{
cpu_aggr_map__delete(stat_config.aggr_map);
cpu_aggr_map__delete(stat_config.cpus_aggr_map);
stat_config.aggr_map = NULL;
stat_config.cpus_aggr_map = NULL;
}
static struct aggr_cpu_id perf_env__get_socket_aggr_by_cpu(struct perf_cpu cpu, void *data)
{
struct perf_env *env = data;
struct aggr_cpu_id id = aggr_cpu_id__empty();
if (cpu.cpu != -1)
id.socket = env->cpu[cpu.cpu].socket_id;
return id;
}
static struct aggr_cpu_id perf_env__get_die_aggr_by_cpu(struct perf_cpu cpu, void *data)
{
struct perf_env *env = data;
struct aggr_cpu_id id = aggr_cpu_id__empty();
if (cpu.cpu != -1) {
id.socket = env->cpu[cpu.cpu].socket_id;
id.die = env->cpu[cpu.cpu].die_id;
}
return id;
}
static void perf_env__get_cache_id_for_cpu(struct perf_cpu cpu, struct perf_env *env,
u32 cache_level, struct aggr_cpu_id *id)
{
int i;
int caches_cnt = env->caches_cnt;
struct cpu_cache_level *caches = env->caches;
id->cache_lvl = (cache_level > MAX_CACHE_LVL) ? 0 : cache_level;
id->cache = -1;
if (!caches_cnt)
return;
for (i = caches_cnt - 1; i > -1; --i) {
struct perf_cpu_map *cpu_map;
int map_contains_cpu;
if (cache_level <= MAX_CACHE_LVL && caches[i].level != cache_level)
continue;
cpu_map = perf_cpu_map__new(caches[i].map);
map_contains_cpu = perf_cpu_map__idx(cpu_map, cpu);
perf_cpu_map__put(cpu_map);
if (map_contains_cpu != -1) {
id->cache_lvl = caches[i].level;
id->cache = cpu__get_cache_id_from_map(cpu, caches[i].map);
return;
}
}
}
static struct aggr_cpu_id perf_env__get_cache_aggr_by_cpu(struct perf_cpu cpu,
void *data)
{
struct perf_env *env = data;
struct aggr_cpu_id id = aggr_cpu_id__empty();
if (cpu.cpu != -1) {
u32 cache_level = (perf_stat.aggr_level) ?: stat_config.aggr_level;
id.socket = env->cpu[cpu.cpu].socket_id;
id.die = env->cpu[cpu.cpu].die_id;
perf_env__get_cache_id_for_cpu(cpu, env, cache_level, &id);
}
return id;
}
static struct aggr_cpu_id perf_env__get_cluster_aggr_by_cpu(struct perf_cpu cpu,
void *data)
{
struct perf_env *env = data;
struct aggr_cpu_id id = aggr_cpu_id__empty();
if (cpu.cpu != -1) {
id.socket = env->cpu[cpu.cpu].socket_id;
id.die = env->cpu[cpu.cpu].die_id;
id.cluster = env->cpu[cpu.cpu].cluster_id;
}
return id;
}
static struct aggr_cpu_id perf_env__get_core_aggr_by_cpu(struct perf_cpu cpu, void *data)
{
struct perf_env *env = data;
struct aggr_cpu_id id = aggr_cpu_id__empty();
if (cpu.cpu != -1) {
id.socket = env->cpu[cpu.cpu].socket_id;
id.die = env->cpu[cpu.cpu].die_id;
id.cluster = env->cpu[cpu.cpu].cluster_id;
id.core = env->cpu[cpu.cpu].core_id;
}
return id;
}
static struct aggr_cpu_id perf_env__get_cpu_aggr_by_cpu(struct perf_cpu cpu, void *data)
{
struct perf_env *env = data;
struct aggr_cpu_id id = aggr_cpu_id__empty();
if (cpu.cpu != -1) {
id.socket = env->cpu[cpu.cpu].socket_id;
id.die = env->cpu[cpu.cpu].die_id;
id.core = env->cpu[cpu.cpu].core_id;
id.cpu = cpu;
}
return id;
}
static struct aggr_cpu_id perf_env__get_node_aggr_by_cpu(struct perf_cpu cpu, void *data)
{
struct aggr_cpu_id id = aggr_cpu_id__empty();
id.node = perf_env__numa_node(data, cpu);
return id;
}
static struct aggr_cpu_id perf_env__get_global_aggr_by_cpu(struct perf_cpu cpu __maybe_unused,
void *data __maybe_unused)
{
struct aggr_cpu_id id = aggr_cpu_id__empty();
id.cpu = (struct perf_cpu){ .cpu = 0 };
return id;
}
static struct aggr_cpu_id perf_stat__get_socket_file(struct perf_stat_config *config __maybe_unused,
struct perf_cpu cpu)
{
return perf_env__get_socket_aggr_by_cpu(cpu, perf_session__env(perf_stat.session));
}
static struct aggr_cpu_id perf_stat__get_die_file(struct perf_stat_config *config __maybe_unused,
struct perf_cpu cpu)
{
return perf_env__get_die_aggr_by_cpu(cpu, perf_session__env(perf_stat.session));
}
static struct aggr_cpu_id perf_stat__get_cluster_file(struct perf_stat_config *config __maybe_unused,
struct perf_cpu cpu)
{
return perf_env__get_cluster_aggr_by_cpu(cpu, perf_session__env(perf_stat.session));
}
static struct aggr_cpu_id perf_stat__get_cache_file(struct perf_stat_config *config __maybe_unused,
struct perf_cpu cpu)
{
return perf_env__get_cache_aggr_by_cpu(cpu, perf_session__env(perf_stat.session));
}
static struct aggr_cpu_id perf_stat__get_core_file(struct perf_stat_config *config __maybe_unused,
struct perf_cpu cpu)
{
return perf_env__get_core_aggr_by_cpu(cpu, perf_session__env(perf_stat.session));
}
static struct aggr_cpu_id perf_stat__get_cpu_file(struct perf_stat_config *config __maybe_unused,
struct perf_cpu cpu)
{
return perf_env__get_cpu_aggr_by_cpu(cpu, perf_session__env(perf_stat.session));
}
static struct aggr_cpu_id perf_stat__get_node_file(struct perf_stat_config *config __maybe_unused,
struct perf_cpu cpu)
{
return perf_env__get_node_aggr_by_cpu(cpu, perf_session__env(perf_stat.session));
}
static struct aggr_cpu_id perf_stat__get_global_file(struct perf_stat_config *config __maybe_unused,
struct perf_cpu cpu)
{
return perf_env__get_global_aggr_by_cpu(cpu, perf_session__env(perf_stat.session));
}
static aggr_cpu_id_get_t aggr_mode__get_aggr_file(enum aggr_mode aggr_mode)
{
switch (aggr_mode) {
case AGGR_SOCKET:
return perf_env__get_socket_aggr_by_cpu;
case AGGR_DIE:
return perf_env__get_die_aggr_by_cpu;
case AGGR_CLUSTER:
return perf_env__get_cluster_aggr_by_cpu;
case AGGR_CACHE:
return perf_env__get_cache_aggr_by_cpu;
case AGGR_CORE:
return perf_env__get_core_aggr_by_cpu;
case AGGR_NODE:
return perf_env__get_node_aggr_by_cpu;
case AGGR_GLOBAL:
return perf_env__get_global_aggr_by_cpu;
case AGGR_NONE:
return perf_env__get_cpu_aggr_by_cpu;
case AGGR_THREAD:
case AGGR_UNSET:
case AGGR_MAX:
default:
return NULL;
}
}
static aggr_get_id_t aggr_mode__get_id_file(enum aggr_mode aggr_mode)
{
switch (aggr_mode) {
case AGGR_SOCKET:
return perf_stat__get_socket_file;
case AGGR_DIE:
return perf_stat__get_die_file;
case AGGR_CLUSTER:
return perf_stat__get_cluster_file;
case AGGR_CACHE:
return perf_stat__get_cache_file;
case AGGR_CORE:
return perf_stat__get_core_file;
case AGGR_NODE:
return perf_stat__get_node_file;
case AGGR_GLOBAL:
return perf_stat__get_global_file;
case AGGR_NONE:
return perf_stat__get_cpu_file;
case AGGR_THREAD:
case AGGR_UNSET:
case AGGR_MAX:
default:
return NULL;
}
}
static int perf_stat_init_aggr_mode_file(struct perf_stat *st)
{
struct perf_env *env = perf_session__env(st->session);
aggr_cpu_id_get_t get_id = aggr_mode__get_aggr_file(stat_config.aggr_mode);
bool needs_sort = stat_config.aggr_mode != AGGR_NONE;
if (stat_config.aggr_mode == AGGR_THREAD) {
int nr = perf_thread_map__nr(evsel_list->core.threads);
stat_config.aggr_map = cpu_aggr_map__empty_new(nr);
if (stat_config.aggr_map == NULL)
return -ENOMEM;
for (int s = 0; s < nr; s++) {
struct aggr_cpu_id id = aggr_cpu_id__empty();
id.thread_idx = s;
stat_config.aggr_map->map[s] = id;
}
return 0;
}
if (!get_id)
return 0;
stat_config.aggr_map = cpu_aggr_map__new(evsel_list->core.user_requested_cpus,
get_id, env, needs_sort);
if (!stat_config.aggr_map) {
pr_err("cannot build %s map\n", aggr_mode__string[stat_config.aggr_mode]);
return -1;
}
stat_config.aggr_get_id = aggr_mode__get_id_file(stat_config.aggr_mode);
return 0;
}
static int default_evlist_evsel_cmp(void *priv __maybe_unused,
const struct list_head *l,
const struct list_head *r)
{
const struct perf_evsel *lhs_core = container_of(l, struct perf_evsel, node);
const struct evsel *lhs = container_of(lhs_core, struct evsel, core);
const struct perf_evsel *rhs_core = container_of(r, struct perf_evsel, node);
const struct evsel *rhs = container_of(rhs_core, struct evsel, core);
if (evsel__leader(lhs) == evsel__leader(rhs)) {
return lhs_core->idx - rhs_core->idx;
}
if (lhs->default_metricgroup != rhs->default_metricgroup)
return lhs->default_metricgroup ? -1 : 1;
if (lhs->default_show_events != rhs->default_show_events)
return lhs->default_show_events ? -1 : 1;
if (lhs->pmu != rhs->pmu)
return lhs->pmu->type - rhs->pmu->type;
return strcmp(evsel__name((struct evsel *)lhs), evsel__name((struct evsel *)rhs));
}
static int add_default_events(void)
{
const char *pmu = parse_events_option_args.pmu_filter ?: "all";
struct parse_events_error err;
struct evlist *evlist = evlist__new();
struct evsel *evsel;
int ret = 0;
if (!evlist)
return -ENOMEM;
parse_events_error__init(&err);
if (stat_config.null_run)
goto out;
if (transaction_run) {
if (!metricgroup__has_metric_or_groups(pmu, "transaction")) {
pr_err("Missing transaction metrics\n");
ret = -1;
goto out;
}
ret = metricgroup__parse_groups(evlist, pmu, "transaction",
stat_config.metric_no_group,
stat_config.metric_no_merge,
stat_config.metric_no_threshold,
stat_config.user_requested_cpu_list,
stat_config.system_wide,
stat_config.hardware_aware_grouping);
goto out;
}
if (smi_cost) {
int smi;
if (sysfs__read_int(FREEZE_ON_SMI_PATH, &smi) < 0) {
pr_err("freeze_on_smi is not supported.\n");
ret = -1;
goto out;
}
if (!smi) {
if (sysfs__write_int(FREEZE_ON_SMI_PATH, 1) < 0) {
pr_err("Failed to set freeze_on_smi.\n");
ret = -1;
goto out;
}
smi_reset = true;
}
if (!metricgroup__has_metric_or_groups(pmu, "smi")) {
pr_err("Missing smi metrics\n");
ret = -1;
goto out;
}
if (!force_metric_only)
stat_config.metric_only = true;
ret = metricgroup__parse_groups(evlist, pmu, "smi",
stat_config.metric_no_group,
stat_config.metric_no_merge,
stat_config.metric_no_threshold,
stat_config.user_requested_cpu_list,
stat_config.system_wide,
stat_config.hardware_aware_grouping);
goto out;
}
if (topdown_run) {
unsigned int max_level = metricgroups__topdown_max_level();
char str[] = "TopdownL1";
if (!force_metric_only)
stat_config.metric_only = true;
if (!max_level) {
pr_err("Topdown requested but the topdown metric groups aren't present.\n"
"(See perf list the metric groups have names like TopdownL1)\n");
ret = -1;
goto out;
}
if (stat_config.topdown_level > max_level) {
pr_err("Invalid top-down metrics level. The max level is %u.\n", max_level);
ret = -1;
goto out;
} else if (!stat_config.topdown_level) {
stat_config.topdown_level = 1;
}
if (!stat_config.interval && !stat_config.metric_only) {
fprintf(stat_config.output,
"Topdown accuracy may decrease when measuring long periods.\n"
"Please print the result regularly, e.g. -I1000\n");
}
str[8] = stat_config.topdown_level + '0';
if (metricgroup__parse_groups(evlist,
pmu, str,
false,
false,
true,
stat_config.user_requested_cpu_list,
stat_config.system_wide,
stat_config.hardware_aware_grouping) < 0) {
ret = -1;
goto out;
}
}
if (!stat_config.topdown_level)
stat_config.topdown_level = 1;
if (!evlist->core.nr_entries && !evsel_list->core.nr_entries) {
const char *default_metricgroup_names[] = {
"Default", "Default2", "Default3", "Default4",
};
for (size_t i = 0; i < ARRAY_SIZE(default_metricgroup_names); i++) {
struct evlist *metric_evlist;
if (!metricgroup__has_metric_or_groups(pmu, default_metricgroup_names[i]))
continue;
if ((int)i > detailed_run)
break;
metric_evlist = evlist__new();
if (!metric_evlist) {
ret = -ENOMEM;
break;
}
if (metricgroup__parse_groups(metric_evlist, pmu, default_metricgroup_names[i],
false,
false,
true,
stat_config.user_requested_cpu_list,
stat_config.system_wide,
stat_config.hardware_aware_grouping) < 0) {
evlist__delete(metric_evlist);
ret = -1;
break;
}
evlist__for_each_entry(metric_evlist, evsel)
evsel->default_metricgroup = true;
evlist__splice_list_tail(evlist, &metric_evlist->core.entries);
metricgroup__copy_metric_events(evlist, NULL,
&evlist->metric_events,
&metric_evlist->metric_events);
evlist__delete(metric_evlist);
}
list_sort(NULL, &evlist->core.entries, default_evlist_evsel_cmp);
}
out:
if (!ret) {
evlist__for_each_entry(evlist, evsel) {
if (!evsel__match(evsel, HARDWARE, HW_CPU_CYCLES))
evsel->skippable = true;
}
}
parse_events_error__exit(&err);
evlist__splice_list_tail(evsel_list, &evlist->core.entries);
metricgroup__copy_metric_events(evsel_list, NULL,
&evsel_list->metric_events,
&evlist->metric_events);
evlist__delete(evlist);
return ret;
}
static const char * const stat_record_usage[] = {
"perf stat record [<options>]",
NULL,
};
static void init_features(struct perf_session *session)
{
int feat;
for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++)
perf_header__set_feat(&session->header, feat);
perf_header__clear_feat(&session->header, HEADER_DIR_FORMAT);
perf_header__clear_feat(&session->header, HEADER_BUILD_ID);
perf_header__clear_feat(&session->header, HEADER_TRACING_DATA);
perf_header__clear_feat(&session->header, HEADER_BRANCH_STACK);
perf_header__clear_feat(&session->header, HEADER_AUXTRACE);
}
static int __cmd_record(const struct option stat_options[], struct opt_aggr_mode *opt_mode,
int argc, const char **argv)
{
struct perf_session *session;
struct perf_data *data = &perf_stat.data;
argc = parse_options(argc, argv, stat_options, stat_record_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
stat_config.aggr_mode = opt_aggr_mode_to_aggr_mode(opt_mode);
if (output_name)
data->path = output_name;
if (stat_config.run_count != 1 || forever) {
pr_err("Cannot use -r option with perf stat record.\n");
return -1;
}
session = perf_session__new(data, NULL);
if (IS_ERR(session)) {
pr_err("Perf session creation failed\n");
return PTR_ERR(session);
}
init_features(session);
session->evlist = evsel_list;
perf_stat.session = session;
perf_stat.record = true;
return argc;
}
static int process_stat_round_event(const struct perf_tool *tool __maybe_unused,
struct perf_session *session,
union perf_event *event)
{
struct perf_record_stat_round *stat_round = &event->stat_round;
struct timespec tsh, *ts = NULL;
struct perf_env *env = perf_session__env(session);
const char **argv = env->cmdline_argv;
int argc = env->nr_cmdline;
process_counters();
if (stat_round->type == PERF_STAT_ROUND_TYPE__FINAL)
update_stats(stat_config.walltime_nsecs_stats, stat_round->time);
if (stat_config.interval && stat_round->time) {
tsh.tv_sec = stat_round->time / NSEC_PER_SEC;
tsh.tv_nsec = stat_round->time % NSEC_PER_SEC;
ts = &tsh;
}
print_counters(ts, argc, argv);
return 0;
}
static
int process_stat_config_event(const struct perf_tool *tool,
struct perf_session *session,
union perf_event *event)
{
struct perf_stat *st = container_of(tool, struct perf_stat, tool);
perf_event__read_stat_config(&stat_config, &event->stat_config);
if (perf_cpu_map__is_empty(st->cpus)) {
if (st->aggr_mode != AGGR_UNSET)
pr_warning("warning: processing task data, aggregation mode not set\n");
} else if (st->aggr_mode != AGGR_UNSET) {
stat_config.aggr_mode = st->aggr_mode;
}
if (perf_stat.data.is_pipe)
perf_stat_init_aggr_mode();
else
perf_stat_init_aggr_mode_file(st);
if (stat_config.aggr_map) {
int nr_aggr = stat_config.aggr_map->nr;
if (evlist__alloc_aggr_stats(session->evlist, nr_aggr) < 0) {
pr_err("cannot allocate aggr counts\n");
return -1;
}
}
return 0;
}
static int set_maps(struct perf_stat *st)
{
if (!st->cpus || !st->threads)
return 0;
if (WARN_ONCE(st->maps_allocated, "stats double allocation\n"))
return -EINVAL;
perf_evlist__set_maps(&evsel_list->core, st->cpus, st->threads);
if (evlist__alloc_stats(&stat_config, evsel_list, true))
return -ENOMEM;
st->maps_allocated = true;
return 0;
}
static
int process_thread_map_event(const struct perf_tool *tool,
struct perf_session *session __maybe_unused,
union perf_event *event)
{
struct perf_stat *st = container_of(tool, struct perf_stat, tool);
if (st->threads) {
pr_warning("Extra thread map event, ignoring.\n");
return 0;
}
st->threads = thread_map__new_event(&event->thread_map);
if (!st->threads)
return -ENOMEM;
return set_maps(st);
}
static
int process_cpu_map_event(const struct perf_tool *tool,
struct perf_session *session __maybe_unused,
union perf_event *event)
{
struct perf_stat *st = container_of(tool, struct perf_stat, tool);
struct perf_cpu_map *cpus;
if (st->cpus) {
pr_warning("Extra cpu map event, ignoring.\n");
return 0;
}
cpus = cpu_map__new_data(&event->cpu_map.data);
if (!cpus)
return -ENOMEM;
st->cpus = cpus;
return set_maps(st);
}
static const char * const stat_report_usage[] = {
"perf stat report [<options>]",
NULL,
};
static struct perf_stat perf_stat = {
.aggr_mode = AGGR_UNSET,
.aggr_level = 0,
};
static int __cmd_report(int argc, const char **argv)
{
struct perf_session *session;
const struct option options[] = {
OPT_STRING('i', "input", &input_name, "file", "input file name"),
OPT_SET_UINT(0, "per-socket", &perf_stat.aggr_mode,
"aggregate counts per processor socket", AGGR_SOCKET),
OPT_SET_UINT(0, "per-die", &perf_stat.aggr_mode,
"aggregate counts per processor die", AGGR_DIE),
OPT_SET_UINT(0, "per-cluster", &perf_stat.aggr_mode,
"aggregate counts perf processor cluster", AGGR_CLUSTER),
OPT_CALLBACK_OPTARG(0, "per-cache", &perf_stat.aggr_mode, &perf_stat.aggr_level,
"cache level",
"aggregate count at this cache level (Default: LLC)",
parse_cache_level),
OPT_SET_UINT(0, "per-core", &perf_stat.aggr_mode,
"aggregate counts per physical processor core", AGGR_CORE),
OPT_SET_UINT(0, "per-node", &perf_stat.aggr_mode,
"aggregate counts per numa node", AGGR_NODE),
OPT_SET_UINT('A', "no-aggr", &perf_stat.aggr_mode,
"disable CPU count aggregation", AGGR_NONE),
OPT_END()
};
struct stat st;
int ret;
argc = parse_options(argc, argv, options, stat_report_usage, 0);
if (!input_name || !strlen(input_name)) {
if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
input_name = "-";
else
input_name = "perf.data";
}
perf_stat.data.path = input_name;
perf_stat.data.mode = PERF_DATA_MODE_READ;
perf_tool__init(&perf_stat.tool, false);
perf_stat.tool.attr = perf_event__process_attr;
perf_stat.tool.event_update = perf_event__process_event_update;
perf_stat.tool.thread_map = process_thread_map_event;
perf_stat.tool.cpu_map = process_cpu_map_event;
perf_stat.tool.stat_config = process_stat_config_event;
perf_stat.tool.stat = perf_event__process_stat_event;
perf_stat.tool.stat_round = process_stat_round_event;
session = perf_session__new(&perf_stat.data, &perf_stat.tool);
if (IS_ERR(session))
return PTR_ERR(session);
perf_stat.session = session;
stat_config.output = stderr;
evlist__delete(evsel_list);
evsel_list = session->evlist;
ret = perf_session__process_events(session);
if (ret)
return ret;
perf_session__delete(session);
return 0;
}
static void setup_system_wide(int forks)
{
if (!target__none(&target))
return;
if (!forks)
target.system_wide = true;
else {
struct evsel *counter;
evlist__for_each_entry(evsel_list, counter) {
if (!counter->core.requires_cpu &&
!evsel__name_is(counter, "duration_time")) {
return;
}
}
if (evsel_list->core.nr_entries)
target.system_wide = true;
}
}
#ifdef HAVE_ARCH_X86_64_SUPPORT
static int parse_tpebs_mode(const struct option *opt, const char *str,
int unset __maybe_unused)
{
enum tpebs_mode *mode = opt->value;
if (!strcasecmp("mean", str)) {
*mode = TPEBS_MODE__MEAN;
return 0;
}
if (!strcasecmp("min", str)) {
*mode = TPEBS_MODE__MIN;
return 0;
}
if (!strcasecmp("max", str)) {
*mode = TPEBS_MODE__MAX;
return 0;
}
if (!strcasecmp("last", str)) {
*mode = TPEBS_MODE__LAST;
return 0;
}
return -1;
}
#endif
int cmd_stat(int argc, const char **argv)
{
struct opt_aggr_mode opt_mode = {};
bool affinity = true, affinity_set = false;
struct option stat_options[] = {
OPT_BOOLEAN('T', "transaction", &transaction_run,
"hardware transaction statistics"),
OPT_CALLBACK('e', "event", &parse_events_option_args, "event",
"event selector. use 'perf list' to list available events",
parse_events_option),
OPT_CALLBACK(0, "filter", &evsel_list, "filter",
"event filter", parse_filter),
OPT_BOOLEAN('i', "no-inherit", &stat_config.no_inherit,
"child tasks do not inherit counters"),
OPT_STRING('p', "pid", &target.pid, "pid",
"stat events on existing process id"),
OPT_STRING('t', "tid", &target.tid, "tid",
"stat events on existing thread id"),
#ifdef HAVE_BPF_SKEL
OPT_STRING('b', "bpf-prog", &target.bpf_str, "bpf-prog-id",
"stat events on existing bpf program id"),
OPT_BOOLEAN(0, "bpf-counters", &target.use_bpf,
"use bpf program to count events"),
OPT_STRING(0, "bpf-attr-map", &target.attr_map, "attr-map-path",
"path to perf_event_attr map"),
#endif
OPT_BOOLEAN('a', "all-cpus", &target.system_wide,
"system-wide collection from all CPUs"),
OPT_BOOLEAN(0, "scale", &stat_config.scale,
"Use --no-scale to disable counter scaling for multiplexing"),
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show counter open errors, etc)"),
OPT_INTEGER('r', "repeat", &stat_config.run_count,
"repeat command and print average + stddev (max: 100, forever: 0)"),
OPT_BOOLEAN(0, "table", &stat_config.walltime_run_table,
"display details about each run (only with -r option)"),
OPT_BOOLEAN('n', "null", &stat_config.null_run,
"null run - dont start any counters"),
OPT_INCR('d', "detailed", &detailed_run,
"detailed run - start a lot of events"),
OPT_BOOLEAN('S', "sync", &sync_run,
"call sync() before starting a run"),
OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL,
"print large numbers with thousands\' separators",
stat__set_big_num),
OPT_STRING('C', "cpu", &target.cpu_list, "cpu",
"list of cpus to monitor in system-wide"),
OPT_BOOLEAN('A', "no-aggr", &opt_mode.no_aggr,
"disable aggregation across CPUs or PMUs"),
OPT_BOOLEAN(0, "no-merge", &opt_mode.no_aggr,
"disable aggregation the same as -A or -no-aggr"),
OPT_BOOLEAN(0, "hybrid-merge", &stat_config.hybrid_merge,
"Merge identical named hybrid events"),
OPT_STRING('x', "field-separator", &stat_config.csv_sep, "separator",
"print counts with custom separator"),
OPT_BOOLEAN('j', "json-output", &stat_config.json_output,
"print counts in JSON format"),
OPT_CALLBACK('G', "cgroup", &evsel_list, "name",
"monitor event in cgroup name only", parse_stat_cgroups),
OPT_STRING(0, "for-each-cgroup", &stat_config.cgroup_list, "name",
"expand events for each cgroup"),
OPT_STRING('o', "output", &output_name, "file", "output file name"),
OPT_BOOLEAN(0, "append", &append_file, "append to the output file"),
OPT_INTEGER(0, "log-fd", &output_fd,
"log output to fd, instead of stderr"),
OPT_STRING(0, "pre", &pre_cmd, "command",
"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", &stat_config.interval,
"print counts at regular interval in ms "
"(overhead is possible for values <= 100ms)"),
OPT_INTEGER(0, "interval-count", &stat_config.times,
"print counts for fixed number of times"),
OPT_BOOLEAN(0, "interval-clear", &stat_config.interval_clear,
"clear screen in between new interval"),
OPT_UINTEGER(0, "timeout", &stat_config.timeout,
"stop workload and print counts after a timeout period in ms (>= 10ms)"),
OPT_BOOLEAN(0, "per-socket", &opt_mode.socket,
"aggregate counts per processor socket"),
OPT_BOOLEAN(0, "per-die", &opt_mode.die, "aggregate counts per processor die"),
OPT_BOOLEAN(0, "per-cluster", &opt_mode.cluster,
"aggregate counts per processor cluster"),
OPT_CALLBACK_OPTARG(0, "per-cache", &opt_mode, &stat_config.aggr_level,
"cache level", "aggregate count at this cache level (Default: LLC)",
parse_cache_level),
OPT_BOOLEAN(0, "per-core", &opt_mode.core,
"aggregate counts per physical processor core"),
OPT_BOOLEAN(0, "per-thread", &opt_mode.thread, "aggregate counts per thread"),
OPT_BOOLEAN(0, "per-node", &opt_mode.node, "aggregate counts per numa node"),
OPT_INTEGER('D', "delay", &target.initial_delay,
"ms to wait before starting measurement after program start (-1: start with events disabled)"),
OPT_CALLBACK_NOOPT(0, "metric-only", &stat_config.metric_only, NULL,
"Only print computed metrics. No raw values", enable_metric_only),
OPT_BOOLEAN(0, "metric-no-group", &stat_config.metric_no_group,
"don't group metric events, impacts multiplexing"),
OPT_BOOLEAN(0, "metric-no-merge", &stat_config.metric_no_merge,
"don't try to share events between metrics in a group"),
OPT_BOOLEAN(0, "metric-no-threshold", &stat_config.metric_no_threshold,
"disable adding events for the metric threshold calculation"),
OPT_BOOLEAN(0, "topdown", &topdown_run,
"measure top-down statistics"),
#ifdef HAVE_ARCH_X86_64_SUPPORT
OPT_BOOLEAN(0, "record-tpebs", &tpebs_recording,
"enable recording for tpebs when retire_latency required"),
OPT_CALLBACK(0, "tpebs-mode", &tpebs_mode, "tpebs-mode",
"Mode of TPEBS recording: mean, min or max",
parse_tpebs_mode),
#endif
OPT_UINTEGER(0, "td-level", &stat_config.topdown_level,
"Set the metrics level for the top-down statistics (0: max level)"),
OPT_BOOLEAN(0, "smi-cost", &smi_cost,
"measure SMI cost"),
OPT_CALLBACK('M', "metrics", &evsel_list, "metric/metric group list",
"monitor specified metrics or metric groups (separated by ,)",
append_metric_groups),
OPT_BOOLEAN_FLAG(0, "all-kernel", &stat_config.all_kernel,
"Configure all used events to run in kernel space.",
PARSE_OPT_EXCLUSIVE),
OPT_BOOLEAN_FLAG(0, "all-user", &stat_config.all_user,
"Configure all used events to run in user space.",
PARSE_OPT_EXCLUSIVE),
OPT_BOOLEAN(0, "percore-show-thread", &stat_config.percore_show_thread,
"Use with 'percore' event qualifier to show the event "
"counts of one hardware thread by sum up total hardware "
"threads of same physical core"),
OPT_BOOLEAN(0, "summary", &stat_config.summary,
"print summary for interval mode"),
OPT_BOOLEAN(0, "no-csv-summary", &stat_config.no_csv_summary,
"don't print 'summary' for CSV summary output"),
OPT_BOOLEAN(0, "quiet", &quiet,
"don't print any output, messages or warnings (useful with record)"),
OPT_BOOLEAN_SET(0, "affinity", &affinity, &affinity_set,
"enable (default) or disable affinity optimizations to reduce IPIs"),
OPT_CALLBACK(0, "cputype", &evsel_list, "hybrid cpu type",
"Only enable events on applying cpu with this type "
"for hybrid platform (e.g. core or atom)",
parse_cputype),
#ifdef HAVE_LIBPFM
OPT_CALLBACK(0, "pfm-events", &evsel_list, "event",
"libpfm4 event selector. use 'perf list' to list available events",
parse_libpfm_events_option),
#endif
OPT_CALLBACK(0, "control", &stat_config, "fd:ctl-fd[,ack-fd] or fifo:ctl-fifo[,ack-fifo]",
"Listen on ctl-fd descriptor for command to control measurement ('enable': enable events, 'disable': disable events).\n"
"\t\t\t Optionally send control command completion ('ack\\n') to ack-fd descriptor.\n"
"\t\t\t Alternatively, ctl-fifo / ack-fifo will be opened and used as ctl-fd / ack-fd.",
parse_control_option),
OPT_CALLBACK_OPTARG(0, "iostat", &evsel_list, &stat_config, "default",
"measure I/O performance metrics provided by arch/platform",
iostat_parse),
OPT_END()
};
const char * const stat_usage[] = {
"perf stat [<options>] [<command>]",
NULL
};
int status = -EINVAL, run_idx, err;
const char *mode;
FILE *output = stderr;
unsigned int interval, timeout;
const char * const stat_subcommands[] = { "record", "report" };
char errbuf[BUFSIZ];
struct evsel *counter;
setlocale(LC_ALL, "");
evsel_list = evlist__new();
if (evsel_list == NULL)
return -ENOMEM;
parse_events__shrink_config_terms();
set_option_flag(stat_options, 'e', "event", PARSE_OPT_NONEG);
set_option_flag(stat_options, 'M', "metrics", PARSE_OPT_NONEG);
set_option_flag(stat_options, 'G', "cgroup", PARSE_OPT_NONEG);
argc = parse_options_subcommand(argc, argv, stat_options, stat_subcommands,
(const char **) stat_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
stat_config.aggr_mode = opt_aggr_mode_to_aggr_mode(&opt_mode);
if (stat_config.csv_sep) {
stat_config.csv_output = true;
if (!strcmp(stat_config.csv_sep, "\\t"))
stat_config.csv_sep = "\t";
} else
stat_config.csv_sep = DEFAULT_SEPARATOR;
if (affinity_set)
evsel_list->no_affinity = !affinity;
if (argc && strlen(argv[0]) > 2 && strstarts("record", argv[0])) {
argc = __cmd_record(stat_options, &opt_mode, argc, argv);
if (argc < 0)
return -1;
} else if (argc && strlen(argv[0]) > 2 && strstarts("report", argv[0]))
return __cmd_report(argc, argv);
interval = stat_config.interval;
timeout = stat_config.timeout;
if (!STAT_RECORD && output_name && strcmp(output_name, "-"))
output = NULL;
if (output_name && output_fd) {
fprintf(stderr, "cannot use both --output and --log-fd\n");
parse_options_usage(stat_usage, stat_options, "o", 1);
parse_options_usage(NULL, stat_options, "log-fd", 0);
goto out;
}
if (stat_config.metric_only && stat_config.aggr_mode == AGGR_THREAD) {
fprintf(stderr, "--metric-only is not supported with --per-thread\n");
goto out;
}
if (stat_config.metric_only && stat_config.run_count > 1) {
fprintf(stderr, "--metric-only is not supported with -r\n");
goto out;
}
if (stat_config.csv_output || (stat_config.metric_only && stat_config.json_output)) {
stat_config.metric_no_threshold = true;
}
if (stat_config.walltime_run_table && stat_config.run_count <= 1) {
fprintf(stderr, "--table is only supported with -r\n");
parse_options_usage(stat_usage, stat_options, "r", 1);
parse_options_usage(NULL, stat_options, "table", 0);
goto out;
}
if (output_fd < 0) {
fprintf(stderr, "argument to --log-fd must be a > 0\n");
parse_options_usage(stat_usage, stat_options, "log-fd", 0);
goto out;
}
if (!output && !quiet) {
struct timespec tm;
mode = append_file ? "a" : "w";
output = fopen(output_name, mode);
if (!output) {
perror("failed to create output file");
return -1;
}
if (!stat_config.json_output) {
clock_gettime(CLOCK_REALTIME, &tm);
fprintf(output, "# started on %s\n", ctime(&tm.tv_sec));
}
} else if (output_fd > 0) {
mode = append_file ? "a" : "w";
output = fdopen(output_fd, mode);
if (!output) {
perror("Failed opening logfd");
return -errno;
}
}
if (stat_config.interval_clear && !isatty(fileno(output))) {
fprintf(stderr, "--interval-clear does not work with output\n");
parse_options_usage(stat_usage, stat_options, "o", 1);
parse_options_usage(NULL, stat_options, "log-fd", 0);
parse_options_usage(NULL, stat_options, "interval-clear", 0);
return -1;
}
stat_config.output = output;
if (stat_config.csv_output) {
if (big_num_opt == 1) {
fprintf(stderr, "-B option not supported with -x\n");
parse_options_usage(stat_usage, stat_options, "B", 1);
parse_options_usage(NULL, stat_options, "x", 1);
goto out;
} else
stat_config.big_num = false;
} else if (big_num_opt == 0)
stat_config.big_num = false;
target.inherit = !stat_config.no_inherit;
err = target__validate(&target);
if (err) {
target__strerror(&target, err, errbuf, BUFSIZ);
pr_warning("%s\n", errbuf);
}
setup_system_wide(argc);
if ((stat_config.run_count == 1) && target__none(&target))
stat_config.ru_display = true;
if (stat_config.run_count < 0) {
pr_err("Run count must be a positive number\n");
parse_options_usage(stat_usage, stat_options, "r", 1);
goto out;
} else if (stat_config.run_count == 0) {
forever = true;
stat_config.run_count = 1;
}
if (stat_config.walltime_run_table) {
stat_config.walltime_run = zalloc(stat_config.run_count * sizeof(stat_config.walltime_run[0]));
if (!stat_config.walltime_run) {
pr_err("failed to setup -r option");
goto out;
}
}
if ((stat_config.aggr_mode == AGGR_THREAD) &&
!target__has_task(&target)) {
if (!target.system_wide || target.cpu_list) {
fprintf(stderr, "The --per-thread option is only "
"available when monitoring via -p -t -a "
"options or only --per-thread.\n");
parse_options_usage(NULL, stat_options, "p", 1);
parse_options_usage(NULL, stat_options, "t", 1);
goto out;
}
}
if (((stat_config.aggr_mode != AGGR_GLOBAL &&
stat_config.aggr_mode != AGGR_THREAD) ||
(nr_cgroups || stat_config.cgroup_list)) &&
!target__has_cpu(&target)) {
fprintf(stderr, "both cgroup and no-aggregation "
"modes only available in system-wide mode\n");
parse_options_usage(stat_usage, stat_options, "G", 1);
parse_options_usage(NULL, stat_options, "A", 1);
parse_options_usage(NULL, stat_options, "a", 1);
parse_options_usage(NULL, stat_options, "for-each-cgroup", 0);
goto out;
}
if (stat_config.iostat_run) {
status = iostat_prepare(evsel_list, &stat_config);
if (status)
goto out;
if (iostat_mode == IOSTAT_LIST) {
iostat_list(evsel_list, &stat_config);
goto out;
} else if (verbose > 0)
iostat_list(evsel_list, &stat_config);
if (iostat_mode == IOSTAT_RUN && !target__has_cpu(&target))
target.system_wide = true;
}
if ((stat_config.aggr_mode == AGGR_THREAD) && (target.system_wide))
target.per_thread = true;
stat_config.system_wide = target.system_wide;
if (target.cpu_list) {
stat_config.user_requested_cpu_list = strdup(target.cpu_list);
if (!stat_config.user_requested_cpu_list) {
status = -ENOMEM;
goto out;
}
}
if (metrics) {
const char *pmu = parse_events_option_args.pmu_filter ?: "all";
int ret = metricgroup__parse_groups(evsel_list, pmu, metrics,
stat_config.metric_no_group,
stat_config.metric_no_merge,
stat_config.metric_no_threshold,
stat_config.user_requested_cpu_list,
stat_config.system_wide,
stat_config.hardware_aware_grouping);
zfree(&metrics);
if (ret) {
status = ret;
goto out;
}
}
if (add_default_events())
goto out;
if (stat_config.cgroup_list) {
if (nr_cgroups > 0) {
pr_err("--cgroup and --for-each-cgroup cannot be used together\n");
parse_options_usage(stat_usage, stat_options, "G", 1);
parse_options_usage(NULL, stat_options, "for-each-cgroup", 0);
goto out;
}
if (evlist__expand_cgroup(evsel_list, stat_config.cgroup_list, true) < 0) {
parse_options_usage(stat_usage, stat_options,
"for-each-cgroup", 0);
goto out;
}
}
#ifdef HAVE_BPF_SKEL
if (target.use_bpf && nr_cgroups &&
(evsel_list->core.nr_entries / nr_cgroups) > BPERF_CGROUP__MAX_EVENTS) {
pr_warning("Disabling BPF counters due to more events (%d) than the max (%d)\n",
evsel_list->core.nr_entries / nr_cgroups, BPERF_CGROUP__MAX_EVENTS);
target.use_bpf = false;
}
#endif
evlist__warn_user_requested_cpus(evsel_list, target.cpu_list);
evlist__for_each_entry(evsel_list, counter) {
if ((counter->bpf_counter || target.use_bpf) && !target__has_cpu(&target))
counter->core.requires_cpu = true;
}
if (evlist__create_maps(evsel_list, &target) < 0) {
if (target__has_task(&target)) {
pr_err("Problems finding threads of monitor\n");
parse_options_usage(stat_usage, stat_options, "p", 1);
parse_options_usage(NULL, stat_options, "t", 1);
} else if (target__has_cpu(&target)) {
perror("failed to parse CPUs map");
parse_options_usage(stat_usage, stat_options, "C", 1);
parse_options_usage(NULL, stat_options, "a", 1);
}
goto out;
}
evlist__check_cpu_maps(evsel_list);
if (stat_config.aggr_mode == AGGR_THREAD) {
thread_map__read_comms(evsel_list->core.threads);
}
if (stat_config.aggr_mode == AGGR_NODE)
cpu__setup_cpunode_map();
if (stat_config.times && interval)
interval_count = true;
else if (stat_config.times && !interval) {
pr_err("interval-count option should be used together with "
"interval-print.\n");
parse_options_usage(stat_usage, stat_options, "interval-count", 0);
parse_options_usage(stat_usage, stat_options, "I", 1);
goto out;
}
if (timeout && timeout < 100) {
if (timeout < 10) {
pr_err("timeout must be >= 10ms.\n");
parse_options_usage(stat_usage, stat_options, "timeout", 0);
goto out;
} else
pr_warning("timeout < 100ms. "
"The overhead percentage could be high in some cases. "
"Please proceed with caution.\n");
}
if (timeout && interval) {
pr_err("timeout option is not supported with interval-print.\n");
parse_options_usage(stat_usage, stat_options, "timeout", 0);
parse_options_usage(stat_usage, stat_options, "I", 1);
goto out;
}
if (perf_stat_init_aggr_mode())
goto out;
if (evlist__alloc_stats(&stat_config, evsel_list, interval))
goto out;
stat_config.identifier = !(STAT_RECORD && perf_stat.data.is_pipe);
atexit(sig_atexit);
if (!forever)
signal(SIGINT, skip_signal);
signal(SIGCHLD, skip_signal);
signal(SIGALRM, skip_signal);
signal(SIGABRT, skip_signal);
if (evlist__initialize_ctlfd(evsel_list, stat_config.ctl_fd, stat_config.ctl_fd_ack))
goto out;
evlist__first(evsel_list)->ignore_missing_thread = target.pid;
status = 0;
for (run_idx = 0; forever || run_idx < stat_config.run_count; run_idx++) {
if (stat_config.run_count != 1 && verbose > 0)
fprintf(output, "[ perf stat: executing run #%d ... ]\n",
run_idx + 1);
if (run_idx != 0)
evlist__reset_prev_raw_counts(evsel_list);
status = run_perf_stat(argc, argv, run_idx);
if (status < 0)
break;
if (forever && !interval) {
print_counters(NULL, argc, argv);
perf_stat__reset_stats();
}
}
if (!forever && status != -1 && (!interval || stat_config.summary)) {
if (stat_config.run_count > 1)
evlist__copy_res_stats(&stat_config, evsel_list);
print_counters(NULL, argc, argv);
}
evlist__finalize_ctlfd(evsel_list);
if (STAT_RECORD) {
int fd = perf_data__fd(&perf_stat.data);
err = perf_event__synthesize_kernel_mmap((void *)&perf_stat,
process_synthesized_event,
&perf_stat.session->machines.host);
if (err) {
pr_warning("Couldn't synthesize the kernel mmap record, harmless, "
"older tools may produce warnings about this file\n.");
}
if (!interval) {
if (WRITE_STAT_ROUND_EVENT(stat_config.walltime_nsecs_stats->max, FINAL))
pr_err("failed to write stat round event\n");
}
if (!perf_stat.data.is_pipe) {
perf_stat.session->header.data_size += perf_stat.bytes_written;
perf_session__write_header(perf_stat.session, evsel_list, fd, true);
}
evlist__close(evsel_list);
perf_session__delete(perf_stat.session);
}
perf_stat__exit_aggr_mode();
evlist__free_stats(evsel_list);
out:
if (stat_config.iostat_run)
iostat_release(evsel_list);
zfree(&stat_config.walltime_run);
zfree(&stat_config.user_requested_cpu_list);
if (smi_cost && smi_reset)
sysfs__write_int(FREEZE_ON_SMI_PATH, 0);
evlist__delete(evsel_list);
evlist__close_control(stat_config.ctl_fd, stat_config.ctl_fd_ack, &stat_config.ctl_fd_close);
return abs(status);
}
