#include "util/cpumap.h"
#include "util/thread.h"
#include "util/thread_map.h"
+#include "util/counts.h"
#include <stdlib.h>
#include <sys/prctl.h>
#define CNTR_NOT_SUPPORTED "<not supported>"
#define CNTR_NOT_COUNTED "<not counted>"
-static void print_stat(int argc, const char **argv);
-static void print_counter_aggr(struct perf_evsel *counter, char *prefix);
-static void print_counter(struct perf_evsel *counter, char *prefix);
-static void print_aggr(char *prefix);
+static void print_counters(struct timespec *ts, int argc, const char **argv);
/* Default events used for perf stat -T */
-static const char * const transaction_attrs[] = {
- "task-clock",
+static const char *transaction_attrs = {
+ "task-clock,"
"{"
"instructions,"
"cycles,"
};
/* More limited version when the CPU does not have all events. */
-static const char * const transaction_limited_attrs[] = {
- "task-clock",
+static const char * transaction_limited_attrs = {
+ "task-clock,"
"{"
"instructions,"
"cycles,"
"}"
};
-/* must match transaction_attrs and the beginning limited_attrs */
-enum {
- T_TASK_CLOCK,
- T_INSTRUCTIONS,
- T_CYCLES,
- T_CYCLES_IN_TX,
- T_TRANSACTION_START,
- T_ELISION_START,
- T_CYCLES_IN_TX_CP,
-};
-
static struct perf_evlist *evsel_list;
static struct target target = {
.uid = UINT_MAX,
};
-enum aggr_mode {
- AGGR_NONE,
- AGGR_GLOBAL,
- AGGR_SOCKET,
- AGGR_CORE,
-};
+typedef int (*aggr_get_id_t)(struct cpu_map *m, int cpu);
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;
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;
static struct timespec ref_time;
static struct cpu_map *aggr_map;
-static int (*aggr_get_id)(struct cpu_map *m, int cpu);
+static aggr_get_id_t aggr_get_id;
+static bool append_file;
+static const char *output_name;
+static int output_fd;
static volatile int done = 0;
-struct perf_stat {
- struct stats res_stats[3];
+static struct perf_stat_config stat_config = {
+ .aggr_mode = AGGR_GLOBAL,
+ .scale = true,
};
static inline void diff_timespec(struct timespec *r, struct timespec *a,
}
}
-static inline struct cpu_map *perf_evsel__cpus(struct perf_evsel *evsel)
-{
- return (evsel->cpus && !target.cpu_list) ? evsel->cpus : evsel_list->cpus;
-}
-
-static inline int perf_evsel__nr_cpus(struct perf_evsel *evsel)
-{
- return perf_evsel__cpus(evsel)->nr;
-}
-
-static void perf_evsel__reset_stat_priv(struct perf_evsel *evsel)
-{
- int i;
- struct perf_stat *ps = evsel->priv;
-
- for (i = 0; i < 3; i++)
- init_stats(&ps->res_stats[i]);
-}
-
-static int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel)
-{
- evsel->priv = zalloc(sizeof(struct perf_stat));
- if (evsel->priv == NULL)
- return -ENOMEM;
- perf_evsel__reset_stat_priv(evsel);
- return 0;
-}
-
-static void perf_evsel__free_stat_priv(struct perf_evsel *evsel)
-{
- zfree(&evsel->priv);
-}
-
-static int perf_evsel__alloc_prev_raw_counts(struct perf_evsel *evsel)
-{
- void *addr;
- size_t sz;
-
- sz = sizeof(*evsel->counts) +
- (perf_evsel__nr_cpus(evsel) * sizeof(struct perf_counts_values));
-
- addr = zalloc(sz);
- if (!addr)
- return -ENOMEM;
-
- evsel->prev_raw_counts = addr;
-
- return 0;
-}
-
-static void perf_evsel__free_prev_raw_counts(struct perf_evsel *evsel)
-{
- zfree(&evsel->prev_raw_counts);
-}
-
-static void perf_evlist__free_stats(struct perf_evlist *evlist)
-{
- struct perf_evsel *evsel;
-
- evlist__for_each(evlist, evsel) {
- perf_evsel__free_stat_priv(evsel);
- perf_evsel__free_counts(evsel);
- perf_evsel__free_prev_raw_counts(evsel);
- }
-}
-
-static int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw)
+static void perf_stat__reset_stats(void)
{
- struct perf_evsel *evsel;
-
- evlist__for_each(evlist, evsel) {
- if (perf_evsel__alloc_stat_priv(evsel) < 0 ||
- perf_evsel__alloc_counts(evsel, perf_evsel__nr_cpus(evsel)) < 0 ||
- (alloc_raw && perf_evsel__alloc_prev_raw_counts(evsel) < 0))
- goto out_free;
- }
-
- return 0;
-
-out_free:
- perf_evlist__free_stats(evlist);
- return -1;
-}
-
-static struct stats runtime_nsecs_stats[MAX_NR_CPUS];
-static struct stats runtime_cycles_stats[MAX_NR_CPUS];
-static struct stats runtime_stalled_cycles_front_stats[MAX_NR_CPUS];
-static struct stats runtime_stalled_cycles_back_stats[MAX_NR_CPUS];
-static struct stats runtime_branches_stats[MAX_NR_CPUS];
-static struct stats runtime_cacherefs_stats[MAX_NR_CPUS];
-static struct stats runtime_l1_dcache_stats[MAX_NR_CPUS];
-static struct stats runtime_l1_icache_stats[MAX_NR_CPUS];
-static struct stats runtime_ll_cache_stats[MAX_NR_CPUS];
-static struct stats runtime_itlb_cache_stats[MAX_NR_CPUS];
-static struct stats runtime_dtlb_cache_stats[MAX_NR_CPUS];
-static struct stats runtime_cycles_in_tx_stats[MAX_NR_CPUS];
-static struct stats walltime_nsecs_stats;
-static struct stats runtime_transaction_stats[MAX_NR_CPUS];
-static struct stats runtime_elision_stats[MAX_NR_CPUS];
-
-static void perf_stat__reset_stats(struct perf_evlist *evlist)
-{
- struct perf_evsel *evsel;
-
- evlist__for_each(evlist, evsel) {
- perf_evsel__reset_stat_priv(evsel);
- perf_evsel__reset_counts(evsel, perf_evsel__nr_cpus(evsel));
- }
-
- memset(runtime_nsecs_stats, 0, sizeof(runtime_nsecs_stats));
- memset(runtime_cycles_stats, 0, sizeof(runtime_cycles_stats));
- memset(runtime_stalled_cycles_front_stats, 0, sizeof(runtime_stalled_cycles_front_stats));
- memset(runtime_stalled_cycles_back_stats, 0, sizeof(runtime_stalled_cycles_back_stats));
- memset(runtime_branches_stats, 0, sizeof(runtime_branches_stats));
- memset(runtime_cacherefs_stats, 0, sizeof(runtime_cacherefs_stats));
- memset(runtime_l1_dcache_stats, 0, sizeof(runtime_l1_dcache_stats));
- memset(runtime_l1_icache_stats, 0, sizeof(runtime_l1_icache_stats));
- memset(runtime_ll_cache_stats, 0, sizeof(runtime_ll_cache_stats));
- memset(runtime_itlb_cache_stats, 0, sizeof(runtime_itlb_cache_stats));
- memset(runtime_dtlb_cache_stats, 0, sizeof(runtime_dtlb_cache_stats));
- memset(runtime_cycles_in_tx_stats, 0,
- sizeof(runtime_cycles_in_tx_stats));
- memset(runtime_transaction_stats, 0,
- sizeof(runtime_transaction_stats));
- memset(runtime_elision_stats, 0, sizeof(runtime_elision_stats));
- memset(&walltime_nsecs_stats, 0, sizeof(walltime_nsecs_stats));
+ perf_evlist__reset_stats(evsel_list);
+ perf_stat__reset_shadow_stats();
}
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;
return 0;
}
-static struct perf_evsel *nth_evsel(int n)
-{
- static struct perf_evsel **array;
- static int array_len;
- struct perf_evsel *ev;
- int j;
-
- /* Assumes this only called when evsel_list does not change anymore. */
- if (!array) {
- evlist__for_each(evsel_list, ev)
- array_len++;
- array = malloc(array_len * sizeof(void *));
- if (!array)
- exit(ENOMEM);
- j = 0;
- evlist__for_each(evsel_list, ev)
- array[j++] = ev;
- }
- if (n < array_len)
- return array[n];
- return NULL;
-}
-
-/*
- * Update various tracking values we maintain to print
- * more semantic information such as miss/hit ratios,
- * instruction rates, etc:
- */
-static void update_shadow_stats(struct perf_evsel *counter, u64 *count,
- int cpu)
-{
- if (perf_evsel__match(counter, SOFTWARE, SW_TASK_CLOCK))
- update_stats(&runtime_nsecs_stats[cpu], count[0]);
- else if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES))
- update_stats(&runtime_cycles_stats[cpu], count[0]);
- else if (transaction_run &&
- perf_evsel__cmp(counter, nth_evsel(T_CYCLES_IN_TX)))
- update_stats(&runtime_cycles_in_tx_stats[cpu], count[0]);
- else if (transaction_run &&
- perf_evsel__cmp(counter, nth_evsel(T_TRANSACTION_START)))
- update_stats(&runtime_transaction_stats[cpu], count[0]);
- else if (transaction_run &&
- perf_evsel__cmp(counter, nth_evsel(T_ELISION_START)))
- update_stats(&runtime_elision_stats[cpu], count[0]);
- else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_FRONTEND))
- update_stats(&runtime_stalled_cycles_front_stats[cpu], count[0]);
- else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_BACKEND))
- update_stats(&runtime_stalled_cycles_back_stats[cpu], count[0]);
- else if (perf_evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS))
- update_stats(&runtime_branches_stats[cpu], count[0]);
- else if (perf_evsel__match(counter, HARDWARE, HW_CACHE_REFERENCES))
- update_stats(&runtime_cacherefs_stats[cpu], count[0]);
- else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1D))
- update_stats(&runtime_l1_dcache_stats[cpu], count[0]);
- else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1I))
- update_stats(&runtime_l1_icache_stats[cpu], count[0]);
- else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_LL))
- update_stats(&runtime_ll_cache_stats[cpu], count[0]);
- else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_DTLB))
- update_stats(&runtime_dtlb_cache_stats[cpu], count[0]);
- else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_ITLB))
- update_stats(&runtime_itlb_cache_stats[cpu], count[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 read_cb(struct perf_evsel *evsel, int cpu, int thread __maybe_unused,
- 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_CORE:
- case AGGR_SOCKET:
- case AGGR_NONE:
- if (!evsel->snapshot)
- perf_evsel__compute_deltas(evsel, cpu, count);
- perf_counts_values__scale(count, scale, NULL);
- evsel->counts->cpu[cpu] = *count;
- if (aggr_mode == AGGR_NONE)
- 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 read_counter(struct perf_evsel *counter);
-
-/*
- * Read out the results of a single counter:
- * aggregate counts across CPUs in system-wide mode
- */
-static int read_counter_aggr(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;
-
- aggr->val = aggr->ena = aggr->run = 0;
-
- if (read_counter(counter))
- return -1;
-
- if (!counter->snapshot)
- perf_evsel__compute_deltas(counter, -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:
- */
- 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
if (counter->system_wide)
nthreads = 1;
- if (counter->per_pkg)
- zero_per_pkg(counter);
-
for (thread = 0; thread < nthreads; thread++) {
for (cpu = 0; cpu < ncpus; cpu++) {
- if (perf_evsel__read_cb(counter, cpu, thread, read_cb))
+ struct perf_counts_values *count;
+
+ count = perf_counts(counter->counts, cpu, thread);
+ if (perf_evsel__read(counter, cpu, thread, count))
return -1;
}
}
return 0;
}
-static void print_interval(void)
+static void read_counters(bool close_counters)
{
- static int num_print_interval;
struct perf_evsel *counter;
- struct perf_stat *ps;
- struct timespec ts, rs;
- char prefix[64];
- if (aggr_mode == AGGR_GLOBAL) {
- evlist__for_each(evsel_list, counter) {
- ps = counter->priv;
- memset(ps->res_stats, 0, sizeof(ps->res_stats));
- read_counter_aggr(counter);
- }
- } else {
- evlist__for_each(evsel_list, counter) {
- ps = counter->priv;
- memset(ps->res_stats, 0, sizeof(ps->res_stats));
- read_counter(counter);
- }
- }
+ evlist__for_each(evsel_list, counter) {
+ if (read_counter(counter))
+ pr_debug("failed to read counter %s\n", counter->name);
- clock_gettime(CLOCK_MONOTONIC, &ts);
- diff_timespec(&rs, &ts, &ref_time);
- sprintf(prefix, "%6lu.%09lu%s", rs.tv_sec, rs.tv_nsec, csv_sep);
+ if (perf_stat_process_counter(&stat_config, counter))
+ pr_warning("failed to process counter %s\n", counter->name);
- if (num_print_interval == 0 && !csv_output) {
- switch (aggr_mode) {
- case AGGR_SOCKET:
- fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit");
- break;
- case AGGR_CORE:
- fprintf(output, "# time core cpus counts %*s events\n", unit_width, "unit");
- break;
- case AGGR_NONE:
- fprintf(output, "# time CPU counts %*s events\n", unit_width, "unit");
- break;
- case AGGR_GLOBAL:
- default:
- fprintf(output, "# time counts %*s events\n", unit_width, "unit");
+ if (close_counters) {
+ perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter),
+ thread_map__nr(evsel_list->threads));
}
}
+}
- if (++num_print_interval == 25)
- num_print_interval = 0;
+static void process_interval(void)
+{
+ struct timespec ts, rs;
- switch (aggr_mode) {
- case AGGR_CORE:
- case AGGR_SOCKET:
- print_aggr(prefix);
- break;
- case AGGR_NONE:
- evlist__for_each(evsel_list, counter)
- print_counter(counter, prefix);
- break;
- case AGGR_GLOBAL:
- default:
- evlist__for_each(evsel_list, counter)
- print_counter_aggr(counter, prefix);
- }
+ read_counters(false);
+
+ clock_gettime(CLOCK_MONOTONIC, &ts);
+ diff_timespec(&rs, &ts, &ref_time);
- fflush(output);
+ print_counters(&rs, 0, NULL);
}
static void handle_initial_delay(void)
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;
ui__warning("%s event is not supported by the kernel.\n",
perf_evsel__name(counter));
counter->supported = false;
- continue;
+
+ if ((counter->leader != counter) ||
+ !(counter->leader->nr_members > 1))
+ continue;
}
perf_evsel__open_strerror(counter, &target,
if (interval) {
while (!waitpid(child_pid, &status, WNOHANG)) {
nanosleep(&ts, NULL);
- print_interval();
+ process_interval();
}
}
wait(&status);
while (!done) {
nanosleep(&ts, NULL);
if (interval)
- print_interval();
+ process_interval();
}
}
update_stats(&walltime_nsecs_stats, t1 - t0);
- if (aggr_mode == AGGR_GLOBAL) {
- evlist__for_each(evsel_list, counter) {
- read_counter_aggr(counter);
- perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter),
- thread_map__nr(evsel_list->threads));
- }
- } else {
- evlist__for_each(evsel_list, counter) {
- read_counter(counter);
- perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter), 1);
- }
- }
+ read_counters(true);
return WEXITSTATUS(status);
}
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);
}
}
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)
{
- struct perf_stat *ps;
+ struct perf_stat_evsel *ps;
if (run_count == 1)
return;
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),
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,
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(stat_config.output, "%*s-%*d%s",
+ csv_output ? 0 : 16,
+ thread_map__comm(evsel->threads, id),
+ csv_output ? 0 : -8,
+ thread_map__pid(evsel->threads, id),
+ csv_sep);
+ break;
case AGGR_GLOBAL:
+ case AGGR_UNSET:
default:
break;
}
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];
if (evsel->cgrp)
fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
-
- if (csv_output || interval)
- return;
-
- if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK))
- fprintf(output, " # %8.3f CPUs utilized ",
- avg / avg_stats(&walltime_nsecs_stats));
- else
- fprintf(output, " ");
-}
-
-/* used for get_ratio_color() */
-enum grc_type {
- GRC_STALLED_CYCLES_FE,
- GRC_STALLED_CYCLES_BE,
- GRC_CACHE_MISSES,
- GRC_MAX_NR
-};
-
-static const char *get_ratio_color(enum grc_type type, double ratio)
-{
- static const double grc_table[GRC_MAX_NR][3] = {
- [GRC_STALLED_CYCLES_FE] = { 50.0, 30.0, 10.0 },
- [GRC_STALLED_CYCLES_BE] = { 75.0, 50.0, 20.0 },
- [GRC_CACHE_MISSES] = { 20.0, 10.0, 5.0 },
- };
- const char *color = PERF_COLOR_NORMAL;
-
- if (ratio > grc_table[type][0])
- color = PERF_COLOR_RED;
- else if (ratio > grc_table[type][1])
- color = PERF_COLOR_MAGENTA;
- else if (ratio > grc_table[type][2])
- color = PERF_COLOR_YELLOW;
-
- return color;
-}
-
-static void print_stalled_cycles_frontend(int cpu,
- struct perf_evsel *evsel
- __maybe_unused, double avg)
-{
- double total, ratio = 0.0;
- const char *color;
-
- total = avg_stats(&runtime_cycles_stats[cpu]);
-
- if (total)
- ratio = avg / total * 100.0;
-
- color = get_ratio_color(GRC_STALLED_CYCLES_FE, ratio);
-
- fprintf(output, " # ");
- color_fprintf(output, color, "%6.2f%%", ratio);
- fprintf(output, " frontend cycles idle ");
-}
-
-static void print_stalled_cycles_backend(int cpu,
- struct perf_evsel *evsel
- __maybe_unused, double avg)
-{
- double total, ratio = 0.0;
- const char *color;
-
- total = avg_stats(&runtime_cycles_stats[cpu]);
-
- if (total)
- ratio = avg / total * 100.0;
-
- color = get_ratio_color(GRC_STALLED_CYCLES_BE, ratio);
-
- fprintf(output, " # ");
- color_fprintf(output, color, "%6.2f%%", ratio);
- fprintf(output, " backend cycles idle ");
-}
-
-static void print_branch_misses(int cpu,
- struct perf_evsel *evsel __maybe_unused,
- double avg)
-{
- double total, ratio = 0.0;
- const char *color;
-
- total = avg_stats(&runtime_branches_stats[cpu]);
-
- if (total)
- ratio = avg / total * 100.0;
-
- color = get_ratio_color(GRC_CACHE_MISSES, ratio);
-
- fprintf(output, " # ");
- color_fprintf(output, color, "%6.2f%%", ratio);
- fprintf(output, " of all branches ");
-}
-
-static void print_l1_dcache_misses(int cpu,
- struct perf_evsel *evsel __maybe_unused,
- double avg)
-{
- double total, ratio = 0.0;
- const char *color;
-
- total = avg_stats(&runtime_l1_dcache_stats[cpu]);
-
- if (total)
- ratio = avg / total * 100.0;
-
- color = get_ratio_color(GRC_CACHE_MISSES, ratio);
-
- fprintf(output, " # ");
- color_fprintf(output, color, "%6.2f%%", ratio);
- fprintf(output, " of all L1-dcache hits ");
-}
-
-static void print_l1_icache_misses(int cpu,
- struct perf_evsel *evsel __maybe_unused,
- double avg)
-{
- double total, ratio = 0.0;
- const char *color;
-
- total = avg_stats(&runtime_l1_icache_stats[cpu]);
-
- if (total)
- ratio = avg / total * 100.0;
-
- color = get_ratio_color(GRC_CACHE_MISSES, ratio);
-
- fprintf(output, " # ");
- color_fprintf(output, color, "%6.2f%%", ratio);
- fprintf(output, " of all L1-icache hits ");
-}
-
-static void print_dtlb_cache_misses(int cpu,
- struct perf_evsel *evsel __maybe_unused,
- double avg)
-{
- double total, ratio = 0.0;
- const char *color;
-
- total = avg_stats(&runtime_dtlb_cache_stats[cpu]);
-
- if (total)
- ratio = avg / total * 100.0;
-
- color = get_ratio_color(GRC_CACHE_MISSES, ratio);
-
- fprintf(output, " # ");
- color_fprintf(output, color, "%6.2f%%", ratio);
- fprintf(output, " of all dTLB cache hits ");
-}
-
-static void print_itlb_cache_misses(int cpu,
- struct perf_evsel *evsel __maybe_unused,
- double avg)
-{
- double total, ratio = 0.0;
- const char *color;
-
- total = avg_stats(&runtime_itlb_cache_stats[cpu]);
-
- if (total)
- ratio = avg / total * 100.0;
-
- color = get_ratio_color(GRC_CACHE_MISSES, ratio);
-
- fprintf(output, " # ");
- color_fprintf(output, color, "%6.2f%%", ratio);
- fprintf(output, " of all iTLB cache hits ");
-}
-
-static void print_ll_cache_misses(int cpu,
- struct perf_evsel *evsel __maybe_unused,
- double avg)
-{
- double total, ratio = 0.0;
- const char *color;
-
- total = avg_stats(&runtime_ll_cache_stats[cpu]);
-
- if (total)
- ratio = avg / total * 100.0;
-
- color = get_ratio_color(GRC_CACHE_MISSES, ratio);
-
- fprintf(output, " # ");
- color_fprintf(output, color, "%6.2f%%", ratio);
- fprintf(output, " of all LL-cache hits ");
}
static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)
{
- double total, ratio = 0.0, total2;
+ FILE *output = stat_config.output;
double sc = evsel->scale;
const char *fmt;
- int cpu = cpu_map__id_to_cpu(id);
if (csv_output) {
fmt = sc != 1.0 ? "%.2f%s" : "%.0f%s";
aggr_printout(evsel, id, nr);
- if (aggr_mode == AGGR_GLOBAL)
- cpu = 0;
-
fprintf(output, fmt, avg, csv_sep);
if (evsel->unit)
if (evsel->cgrp)
fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
+}
- if (csv_output || interval)
- return;
+static void printout(int id, int nr, struct perf_evsel *counter, double uval)
+{
+ int cpu = cpu_map__id_to_cpu(id);
- if (perf_evsel__match(evsel, HARDWARE, HW_INSTRUCTIONS)) {
- total = avg_stats(&runtime_cycles_stats[cpu]);
- if (total) {
- ratio = avg / total;
- fprintf(output, " # %5.2f insns per cycle ", ratio);
- } else {
- fprintf(output, " ");
- }
- total = avg_stats(&runtime_stalled_cycles_front_stats[cpu]);
- total = max(total, avg_stats(&runtime_stalled_cycles_back_stats[cpu]));
-
- if (total && avg) {
- ratio = total / avg;
- fprintf(output, "\n");
- if (aggr_mode == AGGR_NONE)
- fprintf(output, " ");
- fprintf(output, " # %5.2f stalled cycles per insn", ratio);
- }
+ if (stat_config.aggr_mode == AGGR_GLOBAL)
+ cpu = 0;
- } else if (perf_evsel__match(evsel, HARDWARE, HW_BRANCH_MISSES) &&
- runtime_branches_stats[cpu].n != 0) {
- print_branch_misses(cpu, evsel, avg);
- } else if (
- evsel->attr.type == PERF_TYPE_HW_CACHE &&
- evsel->attr.config == ( PERF_COUNT_HW_CACHE_L1D |
- ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
- ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&
- runtime_l1_dcache_stats[cpu].n != 0) {
- print_l1_dcache_misses(cpu, evsel, avg);
- } else if (
- evsel->attr.type == PERF_TYPE_HW_CACHE &&
- evsel->attr.config == ( PERF_COUNT_HW_CACHE_L1I |
- ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
- ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&
- runtime_l1_icache_stats[cpu].n != 0) {
- print_l1_icache_misses(cpu, evsel, avg);
- } else if (
- evsel->attr.type == PERF_TYPE_HW_CACHE &&
- evsel->attr.config == ( PERF_COUNT_HW_CACHE_DTLB |
- ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
- ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&
- runtime_dtlb_cache_stats[cpu].n != 0) {
- print_dtlb_cache_misses(cpu, evsel, avg);
- } else if (
- evsel->attr.type == PERF_TYPE_HW_CACHE &&
- evsel->attr.config == ( PERF_COUNT_HW_CACHE_ITLB |
- ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
- ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&
- runtime_itlb_cache_stats[cpu].n != 0) {
- print_itlb_cache_misses(cpu, evsel, avg);
- } else if (
- evsel->attr.type == PERF_TYPE_HW_CACHE &&
- evsel->attr.config == ( PERF_COUNT_HW_CACHE_LL |
- ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
- ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&
- runtime_ll_cache_stats[cpu].n != 0) {
- print_ll_cache_misses(cpu, evsel, avg);
- } else if (perf_evsel__match(evsel, HARDWARE, HW_CACHE_MISSES) &&
- runtime_cacherefs_stats[cpu].n != 0) {
- total = avg_stats(&runtime_cacherefs_stats[cpu]);
-
- if (total)
- ratio = avg * 100 / total;
-
- fprintf(output, " # %8.3f %% of all cache refs ", ratio);
-
- } else if (perf_evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_FRONTEND)) {
- print_stalled_cycles_frontend(cpu, evsel, avg);
- } else if (perf_evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_BACKEND)) {
- print_stalled_cycles_backend(cpu, evsel, avg);
- } else if (perf_evsel__match(evsel, HARDWARE, HW_CPU_CYCLES)) {
- total = avg_stats(&runtime_nsecs_stats[cpu]);
-
- if (total) {
- ratio = avg / total;
- fprintf(output, " # %8.3f GHz ", ratio);
- } else {
- fprintf(output, " ");
- }
- } else if (transaction_run &&
- perf_evsel__cmp(evsel, nth_evsel(T_CYCLES_IN_TX))) {
- total = avg_stats(&runtime_cycles_stats[cpu]);
- if (total)
- fprintf(output,
- " # %5.2f%% transactional cycles ",
- 100.0 * (avg / total));
- } else if (transaction_run &&
- perf_evsel__cmp(evsel, nth_evsel(T_CYCLES_IN_TX_CP))) {
- total = avg_stats(&runtime_cycles_stats[cpu]);
- total2 = avg_stats(&runtime_cycles_in_tx_stats[cpu]);
- if (total2 < avg)
- total2 = avg;
- if (total)
- fprintf(output,
- " # %5.2f%% aborted cycles ",
- 100.0 * ((total2-avg) / total));
- } else if (transaction_run &&
- perf_evsel__cmp(evsel, nth_evsel(T_TRANSACTION_START)) &&
- avg > 0 &&
- runtime_cycles_in_tx_stats[cpu].n != 0) {
- total = avg_stats(&runtime_cycles_in_tx_stats[cpu]);
-
- if (total)
- ratio = total / avg;
-
- fprintf(output, " # %8.0f cycles / transaction ", ratio);
- } else if (transaction_run &&
- perf_evsel__cmp(evsel, nth_evsel(T_ELISION_START)) &&
- avg > 0 &&
- runtime_cycles_in_tx_stats[cpu].n != 0) {
- total = avg_stats(&runtime_cycles_in_tx_stats[cpu]);
-
- if (total)
- ratio = total / avg;
-
- fprintf(output, " # %8.0f cycles / elision ", ratio);
- } else if (runtime_nsecs_stats[cpu].n != 0) {
- char unit = 'M';
-
- total = avg_stats(&runtime_nsecs_stats[cpu]);
-
- if (total)
- ratio = 1000.0 * avg / total;
- if (ratio < 0.001) {
- ratio *= 1000;
- unit = 'K';
- }
+ if (nsec_counter(counter))
+ nsec_printout(id, nr, counter, uval);
+ else
+ abs_printout(id, nr, counter, uval);
- fprintf(output, " # %8.3f %c/sec ", ratio, unit);
- } else {
- fprintf(output, " ");
- }
+ if (!csv_output && !stat_config.interval)
+ perf_stat__print_shadow_stats(stat_config.output, counter,
+ uval, 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;
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 += counter->counts->cpu[cpu].val;
- ena += counter->counts->cpu[cpu].ena;
- run += counter->counts->cpu[cpu].run;
+ val += perf_counts(counter->counts, cpu, 0)->val;
+ ena += perf_counts(counter->counts, cpu, 0)->ena;
+ run += perf_counts(counter->counts, cpu, 0)->run;
nr++;
}
if (prefix)
continue;
}
uval = val * counter->scale;
-
- if (nsec_counter(counter))
- nsec_printout(id, nr, counter, uval);
- else
- abs_printout(id, nr, counter, uval);
-
+ printout(id, nr, counter, uval);
if (!csv_output)
print_noise(counter, 1.0);
}
}
+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;
+ double uval;
+
+ 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;
+ }
+
+ if (prefix)
+ fprintf(output, "%s", prefix);
+
+ uval = val * counter->scale;
+ printout(thread, 0, counter, uval);
+
+ if (!csv_output)
+ print_noise(counter, 1.0);
+
+ print_running(run, ena);
+ fputc('\n', output);
+ }
+}
+
/*
* Print out the results of a single counter:
* aggregated counts in system-wide mode
*/
static void print_counter_aggr(struct perf_evsel *counter, char *prefix)
{
- struct perf_stat *ps = counter->priv;
+ FILE *output = stat_config.output;
+ struct perf_stat_evsel *ps = counter->priv;
double avg = avg_stats(&ps->res_stats[0]);
int scaled = counter->counts->scaled;
double uval;
}
uval = avg * counter->scale;
-
- if (nsec_counter(counter))
- nsec_printout(-1, 0, counter, uval);
- else
- abs_printout(-1, 0, counter, uval);
+ printout(-1, 0, counter, uval);
print_noise(counter, avg);
*/
static void print_counter(struct perf_evsel *counter, char *prefix)
{
+ FILE *output = stat_config.output;
u64 ena, run, val;
double uval;
int cpu;
for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
- val = counter->counts->cpu[cpu].val;
- ena = counter->counts->cpu[cpu].ena;
- run = counter->counts->cpu[cpu].run;
+ val = perf_counts(counter->counts, cpu, 0)->val;
+ ena = perf_counts(counter->counts, cpu, 0)->ena;
+ run = perf_counts(counter->counts, cpu, 0)->run;
if (prefix)
fprintf(output, "%s", prefix);
}
uval = val * counter->scale;
-
- if (nsec_counter(counter))
- nsec_printout(cpu, 0, counter, uval);
- else
- abs_printout(cpu, 0, counter, uval);
-
+ printout(cpu, 0, counter, uval);
if (!csv_output)
print_noise(counter, 1.0);
print_running(run, ena);
}
}
-static void print_stat(int argc, const char **argv)
+static void print_interval(char *prefix, struct timespec *ts)
{
- struct perf_evsel *counter;
+ 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 (stat_config.aggr_mode) {
+ case AGGR_SOCKET:
+ fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit");
+ break;
+ case AGGR_CORE:
+ fprintf(output, "# time core cpus counts %*s events\n", unit_width, "unit");
+ break;
+ case AGGR_NONE:
+ fprintf(output, "# time CPU counts %*s events\n", unit_width, "unit");
+ break;
+ case AGGR_THREAD:
+ fprintf(output, "# time comm-pid counts %*s events\n", unit_width, "unit");
+ break;
+ case AGGR_GLOBAL:
+ default:
+ fprintf(output, "# time counts %*s events\n", unit_width, "unit");
+ case AGGR_UNSET:
+ break;
+ }
+ }
+
+ if (++num_print_interval == 25)
+ num_print_interval = 0;
+}
+
+static void print_header(int argc, const char **argv)
+{
+ FILE *output = stat_config.output;
int i;
fflush(stdout);
fprintf(output, " (%d runs)", run_count);
fprintf(output, ":\n\n");
}
+}
+
+static void print_footer(void)
+{
+ FILE *output = stat_config.output;
- switch (aggr_mode) {
+ if (!null_run)
+ fprintf(output, "\n");
+ fprintf(output, " %17.9f seconds time elapsed",
+ avg_stats(&walltime_nsecs_stats)/1e9);
+ if (run_count > 1) {
+ fprintf(output, " ");
+ print_noise_pct(stddev_stats(&walltime_nsecs_stats),
+ avg_stats(&walltime_nsecs_stats));
+ }
+ fprintf(output, "\n\n");
+}
+
+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;
+
+ if (interval)
+ print_interval(prefix = buf, ts);
+ else
+ print_header(argc, argv);
+
+ switch (stat_config.aggr_mode) {
case AGGR_CORE:
case AGGR_SOCKET:
- print_aggr(NULL);
+ print_aggr(prefix);
+ break;
+ case AGGR_THREAD:
+ evlist__for_each(evsel_list, counter)
+ print_aggr_thread(counter, prefix);
break;
case AGGR_GLOBAL:
evlist__for_each(evsel_list, counter)
- print_counter_aggr(counter, NULL);
+ print_counter_aggr(counter, prefix);
break;
case AGGR_NONE:
evlist__for_each(evsel_list, counter)
- print_counter(counter, NULL);
+ print_counter(counter, prefix);
break;
+ case AGGR_UNSET:
default:
break;
}
- if (!csv_output) {
- if (!null_run)
- fprintf(output, "\n");
- fprintf(output, " %17.9f seconds time elapsed",
- avg_stats(&walltime_nsecs_stats)/1e9);
- if (run_count > 1) {
- fprintf(output, " ");
- print_noise_pct(stddev_stats(&walltime_nsecs_stats),
- avg_stats(&walltime_nsecs_stats));
- }
- fprintf(output, "\n\n");
- }
+ if (!interval && !csv_output)
+ print_footer();
+
+ 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;
return 0;
}
+static const struct option stat_options[] = {
+ OPT_BOOLEAN('T', "transaction", &transaction_run,
+ "hardware transaction statistics"),
+ OPT_CALLBACK('e', "event", &evsel_list, "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", &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"),
+ OPT_BOOLEAN('a', "all-cpus", &target.system_wide,
+ "system-wide collection from all CPUs"),
+ OPT_BOOLEAN('g', "group", &group,
+ "put the counters into a counter group"),
+ 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,
+ "repeat command and print average + stddev (max: 100, forever: 0)"),
+ OPT_BOOLEAN('n', "null", &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_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"),
+ OPT_CALLBACK('G', "cgroup", &evsel_list, "name",
+ "monitor event in cgroup name only", parse_cgroups),
+ 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 (>= 10)"),
+ OPT_SET_UINT(0, "per-socket", &stat_config.aggr_mode,
+ "aggregate counts per processor socket", AGGR_SOCKET),
+ OPT_SET_UINT(0, "per-core", &stat_config.aggr_mode,
+ "aggregate counts per physical processor core", AGGR_CORE),
+ 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"),
+ OPT_END()
+};
+
+static int perf_stat__get_socket(struct cpu_map *map, int cpu)
+{
+ return cpu_map__get_socket(map, cpu, NULL);
+}
+
+static int perf_stat__get_core(struct cpu_map *map, int cpu)
+{
+ return cpu_map__get_core(map, cpu, NULL);
+}
+
+static int cpu_map__get_max(struct cpu_map *map)
+{
+ int i, max = -1;
+
+ for (i = 0; i < map->nr; i++) {
+ if (map->map[i] > max)
+ max = map->map[i];
+ }
+
+ return max;
+}
+
+static struct cpu_map *cpus_aggr_map;
+
+static int perf_stat__get_aggr(aggr_get_id_t get_id, struct cpu_map *map, int idx)
+{
+ int cpu;
+
+ if (idx >= map->nr)
+ return -1;
+
+ cpu = map->map[idx];
+
+ if (cpus_aggr_map->map[cpu] == -1)
+ cpus_aggr_map->map[cpu] = get_id(map, idx);
+
+ return cpus_aggr_map->map[cpu];
+}
+
+static int perf_stat__get_socket_cached(struct cpu_map *map, int idx)
+{
+ return perf_stat__get_aggr(perf_stat__get_socket, map, idx);
+}
+
+static int perf_stat__get_core_cached(struct cpu_map *map, int idx)
+{
+ return perf_stat__get_aggr(perf_stat__get_core, map, idx);
+}
+
static int perf_stat_init_aggr_mode(void)
{
- switch (aggr_mode) {
+ int nr;
+
+ switch (stat_config.aggr_mode) {
case AGGR_SOCKET:
if (cpu_map__build_socket_map(evsel_list->cpus, &aggr_map)) {
perror("cannot build socket map");
return -1;
}
- aggr_get_id = cpu_map__get_socket;
+ aggr_get_id = perf_stat__get_socket_cached;
break;
case AGGR_CORE:
if (cpu_map__build_core_map(evsel_list->cpus, &aggr_map)) {
perror("cannot build core map");
return -1;
}
- aggr_get_id = cpu_map__get_core;
+ aggr_get_id = perf_stat__get_core_cached;
break;
case AGGR_NONE:
case AGGR_GLOBAL:
+ case AGGR_THREAD:
+ case AGGR_UNSET:
default:
break;
}
- return 0;
-}
-
-static int setup_events(const char * const *attrs, unsigned len)
-{
- unsigned i;
- for (i = 0; i < len; i++) {
- if (parse_events(evsel_list, attrs[i]))
- return -1;
- }
- return 0;
+ /*
+ * The evsel_list->cpus is the base we operate on,
+ * taking the highest cpu number to be the size of
+ * the aggregation translate cpumap.
+ */
+ nr = cpu_map__get_max(evsel_list->cpus);
+ cpus_aggr_map = cpu_map__empty_new(nr + 1);
+ return cpus_aggr_map ? 0 : -ENOMEM;
}
/*
int err;
if (pmu_have_event("cpu", "cycles-ct") &&
pmu_have_event("cpu", "el-start"))
- err = setup_events(transaction_attrs,
- ARRAY_SIZE(transaction_attrs));
+ err = parse_events(evsel_list, transaction_attrs, NULL);
else
- err = setup_events(transaction_limited_attrs,
- ARRAY_SIZE(transaction_limited_attrs));
- if (err < 0) {
+ err = parse_events(evsel_list, transaction_limited_attrs, NULL);
+ if (err) {
fprintf(stderr, "Cannot set up transaction events\n");
return -1;
}
int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
{
- bool append_file = false;
- int output_fd = 0;
- const char *output_name = NULL;
- const struct option options[] = {
- OPT_BOOLEAN('T', "transaction", &transaction_run,
- "hardware transaction statistics"),
- OPT_CALLBACK('e', "event", &evsel_list, "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", &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"),
- OPT_BOOLEAN('a', "all-cpus", &target.system_wide,
- "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_INCR('v', "verbose", &verbose,
- "be more verbose (show counter open errors, etc)"),
- OPT_INTEGER('r', "repeat", &run_count,
- "repeat command and print average + stddev (max: 100, forever: 0)"),
- OPT_BOOLEAN('n', "null", &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_SET_UINT('A', "no-aggr", &aggr_mode,
- "disable CPU count aggregation", AGGR_NONE),
- OPT_STRING('x', "field-separator", &csv_sep, "separator",
- "print counts with custom separator"),
- OPT_CALLBACK('G', "cgroup", &evsel_list, "name",
- "monitor event in cgroup name only", parse_cgroups),
- 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", &interval,
- "print counts at regular interval in ms (>= 100)"),
- OPT_SET_UINT(0, "per-socket", &aggr_mode,
- "aggregate counts per processor socket", AGGR_SOCKET),
- OPT_SET_UINT(0, "per-core", &aggr_mode,
- "aggregate counts per physical processor core", AGGR_CORE),
- OPT_UINTEGER('D', "delay", &initial_delay,
- "ms to wait before starting measurement after program start"),
- OPT_END()
- };
const char * const stat_usage[] = {
"perf stat [<options>] [<command>]",
NULL
};
int status = -EINVAL, run_idx;
const char *mode;
+ FILE *output = stderr;
+ unsigned int interval;
setlocale(LC_ALL, "");
if (evsel_list == NULL)
return -ENOMEM;
- argc = parse_options(argc, argv, options, stat_usage,
+ argc = parse_options(argc, argv, stat_options, stat_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
- output = stderr;
+ interval = stat_config.interval;
+
if (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, options, "o", 1);
- parse_options_usage(NULL, options, "log-fd", 0);
+ parse_options_usage(stat_usage, stat_options, "o", 1);
+ parse_options_usage(NULL, stat_options, "log-fd", 0);
goto out;
}
if (output_fd < 0) {
fprintf(stderr, "argument to --log-fd must be a > 0\n");
- parse_options_usage(stat_usage, options, "log-fd", 0);
+ parse_options_usage(stat_usage, stat_options, "log-fd", 0);
goto out;
}
}
}
+ stat_config.output = output;
+
if (csv_sep) {
csv_output = true;
if (!strcmp(csv_sep, "\\t"))
/* User explicitly passed -B? */
if (big_num_opt == 1) {
fprintf(stderr, "-B option not supported with -x\n");
- parse_options_usage(stat_usage, options, "B", 1);
- parse_options_usage(NULL, options, "x", 1);
+ parse_options_usage(stat_usage, stat_options, "B", 1);
+ parse_options_usage(NULL, stat_options, "x", 1);
goto out;
} else /* Nope, so disable big number formatting */
big_num = false;
big_num = false;
if (!argc && target__none(&target))
- usage_with_options(stat_usage, options);
+ usage_with_options(stat_usage, stat_options);
if (run_count < 0) {
pr_err("Run count must be a positive number\n");
- parse_options_usage(stat_usage, options, "r", 1);
+ parse_options_usage(stat_usage, stat_options, "r", 1);
goto out;
} else if (run_count == 0) {
forever = true;
run_count = 1;
}
- /* no_aggr, cgroup are for system-wide only */
- if ((aggr_mode != AGGR_GLOBAL || nr_cgroups) &&
+ 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, stat_options, "p", 1);
+ parse_options_usage(NULL, stat_options, "t", 1);
+ goto out;
+ }
+
+ /*
+ * no_aggr, cgroup are for system-wide only
+ * --per-thread is aggregated per thread, we dont mix it with cpu mode
+ */
+ 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");
- parse_options_usage(stat_usage, options, "G", 1);
- parse_options_usage(NULL, options, "A", 1);
- parse_options_usage(NULL, options, "a", 1);
+ 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);
goto out;
}
if (perf_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, options, "p", 1);
- parse_options_usage(NULL, options, "t", 1);
+ 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, options, "C", 1);
- parse_options_usage(NULL, options, "a", 1);
+ parse_options_usage(stat_usage, stat_options, "C", 1);
+ parse_options_usage(NULL, stat_options, "a", 1);
}
goto out;
}
+
+ /*
+ * Initialize thread_map with comm names,
+ * so we could print it out on output.
+ */
+ if (stat_config.aggr_mode == AGGR_THREAD)
+ thread_map__read_comms(evsel_list->threads);
+
if (interval && interval < 100) {
- pr_err("print interval must be >= 100ms\n");
- parse_options_usage(stat_usage, options, "I", 1);
- goto out;
+ if (interval < 10) {
+ pr_err("print interval must be >= 10ms\n");
+ parse_options_usage(stat_usage, stat_options, "I", 1);
+ goto out;
+ } else
+ pr_warning("print interval < 100ms. "
+ "The overhead percentage could be high in some cases. "
+ "Please proceed with caution.\n");
}
if (perf_evlist__alloc_stats(evsel_list, interval))
status = run_perf_stat(argc, argv);
if (forever && status != -1) {
- print_stat(argc, argv);
- perf_stat__reset_stats(evsel_list);
+ print_counters(NULL, argc, argv);
+ perf_stat__reset_stats();
}
}
if (!forever && status != -1 && !interval)
- print_stat(argc, argv);
+ print_counters(NULL, argc, argv);
perf_evlist__free_stats(evsel_list);
out:
Code Review / kvmfornfv.git / blobdiff