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-rw-r--r--tools/perf/builtin-stat.c114
-rw-r--r--tools/perf/util/evsel.c2
-rw-r--r--tools/perf/util/evsel.h3
-rw-r--r--tools/perf/util/parse-events.c28
-rw-r--r--tools/perf/util/pmu.c138
-rw-r--r--tools/perf/util/pmu.h3
6 files changed, 244 insertions, 44 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index ee0d565f83e3..dab98b50c9fe 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -138,6 +138,7 @@ 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;
@@ -461,17 +462,17 @@ static void print_interval(void)
if (num_print_interval == 0 && !csv_output) {
switch (aggr_mode) {
case AGGR_SOCKET:
- fprintf(output, "# time socket cpus counts events\n");
+ fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit");
break;
case AGGR_CORE:
- fprintf(output, "# time core cpus counts events\n");
+ fprintf(output, "# time core cpus counts %*s events\n", unit_width, "unit");
break;
case AGGR_NONE:
- fprintf(output, "# time CPU counts events\n");
+ fprintf(output, "# time CPU counts %*s events\n", unit_width, "unit");
break;
case AGGR_GLOBAL:
default:
- fprintf(output, "# time counts events\n");
+ fprintf(output, "# time counts %*s events\n", unit_width, "unit");
}
}
@@ -516,6 +517,7 @@ static int __run_perf_stat(int argc, const char **argv)
unsigned long long t0, t1;
struct perf_evsel *counter;
struct timespec ts;
+ size_t l;
int status = 0;
const bool forks = (argc > 0);
@@ -565,6 +567,10 @@ static int __run_perf_stat(int argc, const char **argv)
return -1;
}
counter->supported = true;
+
+ l = strlen(counter->unit);
+ if (l > unit_width)
+ unit_width = l;
}
if (perf_evlist__apply_filters(evsel_list)) {
@@ -704,14 +710,25 @@ static void aggr_printout(struct perf_evsel *evsel, int id, int nr)
static void nsec_printout(int cpu, int nr, struct perf_evsel *evsel, double avg)
{
double msecs = avg / 1e6;
- const char *fmt = csv_output ? "%.6f%s%s" : "%18.6f%s%-25s";
+ const char *fmt_v, *fmt_n;
char name[25];
+ fmt_v = csv_output ? "%.6f%s" : "%18.6f%s";
+ fmt_n = csv_output ? "%s" : "%-25s";
+
aggr_printout(evsel, cpu, nr);
scnprintf(name, sizeof(name), "%s%s",
perf_evsel__name(evsel), csv_output ? "" : " (msec)");
- fprintf(output, fmt, msecs, csv_sep, name);
+
+ fprintf(output, fmt_v, msecs, csv_sep);
+
+ if (csv_output)
+ fprintf(output, "%s%s", evsel->unit, csv_sep);
+ else
+ fprintf(output, "%-*s%s", unit_width, evsel->unit, csv_sep);
+
+ fprintf(output, fmt_n, name);
if (evsel->cgrp)
fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
@@ -908,21 +925,31 @@ static void print_ll_cache_misses(int cpu,
static void abs_printout(int cpu, int nr, struct perf_evsel *evsel, double avg)
{
double total, ratio = 0.0, total2;
+ double sc = evsel->scale;
const char *fmt;
- if (csv_output)
- fmt = "%.0f%s%s";
- else if (big_num)
- fmt = "%'18.0f%s%-25s";
- else
- fmt = "%18.0f%s%-25s";
+ if (csv_output) {
+ fmt = sc != 1.0 ? "%.2f%s" : "%.0f%s";
+ } else {
+ if (big_num)
+ fmt = sc != 1.0 ? "%'18.2f%s" : "%'18.0f%s";
+ else
+ fmt = sc != 1.0 ? "%18.2f%s" : "%18.0f%s";
+ }
aggr_printout(evsel, cpu, nr);
if (aggr_mode == AGGR_GLOBAL)
cpu = 0;
- fprintf(output, fmt, avg, csv_sep, perf_evsel__name(evsel));
+ fprintf(output, fmt, avg, csv_sep);
+
+ if (evsel->unit)
+ fprintf(output, "%-*s%s",
+ csv_output ? 0 : unit_width,
+ evsel->unit, csv_sep);
+
+ fprintf(output, "%-*s", csv_output ? 0 : 25, perf_evsel__name(evsel));
if (evsel->cgrp)
fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
@@ -941,7 +968,10 @@ static void abs_printout(int cpu, int nr, struct perf_evsel *evsel, double avg)
if (total && avg) {
ratio = total / avg;
- fprintf(output, "\n # %5.2f stalled cycles per insn", ratio);
+ fprintf(output, "\n");
+ if (aggr_mode == AGGR_NONE)
+ fprintf(output, " ");
+ fprintf(output, " # %5.2f stalled cycles per insn", ratio);
}
} else if (perf_evsel__match(evsel, HARDWARE, HW_BRANCH_MISSES) &&
@@ -1061,6 +1091,7 @@ static void print_aggr(char *prefix)
{
struct perf_evsel *counter;
int cpu, cpu2, s, s2, id, nr;
+ double uval;
u64 ena, run, val;
if (!(aggr_map || aggr_get_id))
@@ -1087,11 +1118,17 @@ static void print_aggr(char *prefix)
if (run == 0 || ena == 0) {
aggr_printout(counter, id, nr);
- fprintf(output, "%*s%s%*s",
+ fprintf(output, "%*s%s",
csv_output ? 0 : 18,
counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
- csv_sep,
- csv_output ? 0 : -24,
+ csv_sep);
+
+ fprintf(output, "%-*s%s",
+ csv_output ? 0 : unit_width,
+ counter->unit, csv_sep);
+
+ fprintf(output, "%*s",
+ csv_output ? 0 : -25,
perf_evsel__name(counter));
if (counter->cgrp)
@@ -1101,11 +1138,12 @@ static void print_aggr(char *prefix)
fputc('\n', output);
continue;
}
+ uval = val * counter->scale;
if (nsec_counter(counter))
- nsec_printout(id, nr, counter, val);
+ nsec_printout(id, nr, counter, uval);
else
- abs_printout(id, nr, counter, val);
+ abs_printout(id, nr, counter, uval);
if (!csv_output) {
print_noise(counter, 1.0);
@@ -1128,16 +1166,21 @@ static void print_counter_aggr(struct perf_evsel *counter, char *prefix)
struct perf_stat *ps = counter->priv;
double avg = avg_stats(&ps->res_stats[0]);
int scaled = counter->counts->scaled;
+ double uval;
if (prefix)
fprintf(output, "%s", prefix);
if (scaled == -1) {
- fprintf(output, "%*s%s%*s",
+ fprintf(output, "%*s%s",
csv_output ? 0 : 18,
counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
- csv_sep,
- csv_output ? 0 : -24,
+ csv_sep);
+ fprintf(output, "%-*s%s",
+ csv_output ? 0 : unit_width,
+ counter->unit, csv_sep);
+ fprintf(output, "%*s",
+ csv_output ? 0 : -25,
perf_evsel__name(counter));
if (counter->cgrp)
@@ -1147,10 +1190,12 @@ static void print_counter_aggr(struct perf_evsel *counter, char *prefix)
return;
}
+ uval = avg * counter->scale;
+
if (nsec_counter(counter))
- nsec_printout(-1, 0, counter, avg);
+ nsec_printout(-1, 0, counter, uval);
else
- abs_printout(-1, 0, counter, avg);
+ abs_printout(-1, 0, counter, uval);
print_noise(counter, avg);
@@ -1177,6 +1222,7 @@ static void print_counter_aggr(struct perf_evsel *counter, char *prefix)
static void print_counter(struct perf_evsel *counter, char *prefix)
{
u64 ena, run, val;
+ double uval;
int cpu;
for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
@@ -1188,14 +1234,20 @@ static void print_counter(struct perf_evsel *counter, char *prefix)
fprintf(output, "%s", prefix);
if (run == 0 || ena == 0) {
- fprintf(output, "CPU%*d%s%*s%s%*s",
+ fprintf(output, "CPU%*d%s%*s%s",
csv_output ? 0 : -4,
perf_evsel__cpus(counter)->map[cpu], csv_sep,
csv_output ? 0 : 18,
counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
- csv_sep,
- csv_output ? 0 : -24,
- perf_evsel__name(counter));
+ csv_sep);
+
+ fprintf(output, "%-*s%s",
+ csv_output ? 0 : unit_width,
+ counter->unit, csv_sep);
+
+ fprintf(output, "%*s",
+ csv_output ? 0 : -25,
+ perf_evsel__name(counter));
if (counter->cgrp)
fprintf(output, "%s%s",
@@ -1205,10 +1257,12 @@ static void print_counter(struct perf_evsel *counter, char *prefix)
continue;
}
+ uval = val * counter->scale;
+
if (nsec_counter(counter))
- nsec_printout(cpu, 0, counter, val);
+ nsec_printout(cpu, 0, counter, uval);
else
- abs_printout(cpu, 0, counter, val);
+ abs_printout(cpu, 0, counter, uval);
if (!csv_output) {
print_noise(counter, 1.0);
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 46dd4c2a41ce..dad64926170f 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -162,6 +162,8 @@ void perf_evsel__init(struct perf_evsel *evsel,
evsel->idx = idx;
evsel->attr = *attr;
evsel->leader = evsel;
+ evsel->unit = "";
+ evsel->scale = 1.0;
INIT_LIST_HEAD(&evsel->node);
hists__init(&evsel->hists);
evsel->sample_size = __perf_evsel__sample_size(attr->sample_type);
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 1ea7c92e6e33..8120eeb86ac1 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -68,6 +68,8 @@ struct perf_evsel {
u32 ids;
struct hists hists;
char *name;
+ double scale;
+ const char *unit;
struct event_format *tp_format;
union {
void *priv;
@@ -138,6 +140,7 @@ extern const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX];
int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
char *bf, size_t size);
const char *perf_evsel__name(struct perf_evsel *evsel);
+
const char *perf_evsel__group_name(struct perf_evsel *evsel);
int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size);
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 6de6f89c2a61..969cb8f0d88d 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -269,9 +269,10 @@ const char *event_type(int type)
-static int __add_event(struct list_head *list, int *idx,
- struct perf_event_attr *attr,
- char *name, struct cpu_map *cpus)
+static struct perf_evsel *
+__add_event(struct list_head *list, int *idx,
+ struct perf_event_attr *attr,
+ char *name, struct cpu_map *cpus)
{
struct perf_evsel *evsel;
@@ -279,19 +280,19 @@ static int __add_event(struct list_head *list, int *idx,
evsel = perf_evsel__new_idx(attr, (*idx)++);
if (!evsel)
- return -ENOMEM;
+ return NULL;
evsel->cpus = cpus;
if (name)
evsel->name = strdup(name);
list_add_tail(&evsel->node, list);
- return 0;
+ return evsel;
}
static int add_event(struct list_head *list, int *idx,
struct perf_event_attr *attr, char *name)
{
- return __add_event(list, idx, attr, name, NULL);
+ return __add_event(list, idx, attr, name, NULL) ? 0 : -ENOMEM;
}
static int parse_aliases(char *str, const char *names[][PERF_EVSEL__MAX_ALIASES], int size)
@@ -633,6 +634,9 @@ int parse_events_add_pmu(struct list_head *list, int *idx,
{
struct perf_event_attr attr;
struct perf_pmu *pmu;
+ struct perf_evsel *evsel;
+ char *unit;
+ double scale;
pmu = perf_pmu__find(name);
if (!pmu)
@@ -640,7 +644,7 @@ int parse_events_add_pmu(struct list_head *list, int *idx,
memset(&attr, 0, sizeof(attr));
- if (perf_pmu__check_alias(pmu, head_config))
+ if (perf_pmu__check_alias(pmu, head_config, &unit, &scale))
return -EINVAL;
/*
@@ -652,8 +656,14 @@ int parse_events_add_pmu(struct list_head *list, int *idx,
if (perf_pmu__config(pmu, &attr, head_config))
return -EINVAL;
- return __add_event(list, idx, &attr, pmu_event_name(head_config),
- pmu->cpus);
+ evsel = __add_event(list, idx, &attr, pmu_event_name(head_config),
+ pmu->cpus);
+ if (evsel) {
+ evsel->unit = unit;
+ evsel->scale = scale;
+ }
+
+ return evsel ? 0 : -ENOMEM;
}
int parse_events__modifier_group(struct list_head *list,
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index c232d8dd410b..56fc10a5e288 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1,19 +1,23 @@
#include <linux/list.h>
#include <sys/types.h>
-#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
#include <dirent.h>
#include "fs.h"
+#include <locale.h>
#include "util.h"
#include "pmu.h"
#include "parse-events.h"
#include "cpumap.h"
+#define UNIT_MAX_LEN 31 /* max length for event unit name */
+
struct perf_pmu_alias {
char *name;
struct list_head terms;
struct list_head list;
+ char unit[UNIT_MAX_LEN+1];
+ double scale;
};
struct perf_pmu_format {
@@ -94,7 +98,80 @@ static int pmu_format(const char *name, struct list_head *format)
return 0;
}
-static int perf_pmu__new_alias(struct list_head *list, char *name, FILE *file)
+static int perf_pmu__parse_scale(struct perf_pmu_alias *alias, char *dir, char *name)
+{
+ struct stat st;
+ ssize_t sret;
+ char scale[128];
+ int fd, ret = -1;
+ char path[PATH_MAX];
+ char *lc;
+
+ snprintf(path, PATH_MAX, "%s/%s.scale", dir, name);
+
+ fd = open(path, O_RDONLY);
+ if (fd == -1)
+ return -1;
+
+ if (fstat(fd, &st) < 0)
+ goto error;
+
+ sret = read(fd, scale, sizeof(scale)-1);
+ if (sret < 0)
+ goto error;
+
+ scale[sret] = '\0';
+ /*
+ * save current locale
+ */
+ lc = setlocale(LC_NUMERIC, NULL);
+
+ /*
+ * force to C locale to ensure kernel
+ * scale string is converted correctly.
+ * kernel uses default C locale.
+ */
+ setlocale(LC_NUMERIC, "C");
+
+ alias->scale = strtod(scale, NULL);
+
+ /* restore locale */
+ setlocale(LC_NUMERIC, lc);
+
+ ret = 0;
+error:
+ close(fd);
+ return ret;
+}
+
+static int perf_pmu__parse_unit(struct perf_pmu_alias *alias, char *dir, char *name)
+{
+ char path[PATH_MAX];
+ ssize_t sret;
+ int fd;
+
+ snprintf(path, PATH_MAX, "%s/%s.unit", dir, name);
+
+ fd = open(path, O_RDONLY);
+ if (fd == -1)
+ return -1;
+
+ sret = read(fd, alias->unit, UNIT_MAX_LEN);
+ if (sret < 0)
+ goto error;
+
+ close(fd);
+
+ alias->unit[sret] = '\0';
+
+ return 0;
+error:
+ close(fd);
+ alias->unit[0] = '\0';
+ return -1;
+}
+
+static int perf_pmu__new_alias(struct list_head *list, char *dir, char *name, FILE *file)
{
struct perf_pmu_alias *alias;
char buf[256];
@@ -110,6 +187,9 @@ static int perf_pmu__new_alias(struct list_head *list, char *name, FILE *file)
return -ENOMEM;
INIT_LIST_HEAD(&alias->terms);
+ alias->scale = 1.0;
+ alias->unit[0] = '\0';
+
ret = parse_events_terms(&alias->terms, buf);
if (ret) {
free(alias);
@@ -117,7 +197,14 @@ static int perf_pmu__new_alias(struct list_head *list, char *name, FILE *file)
}
alias->name = strdup(name);
+ /*
+ * load unit name and scale if available
+ */
+ perf_pmu__parse_unit(alias, dir, name);
+ perf_pmu__parse_scale(alias, dir, name);
+
list_add_tail(&alias->list, list);
+
return 0;
}
@@ -129,6 +216,7 @@ static int pmu_aliases_parse(char *dir, struct list_head *head)
{
struct dirent *evt_ent;
DIR *event_dir;
+ size_t len;
int ret = 0;
event_dir = opendir(dir);
@@ -143,13 +231,24 @@ static int pmu_aliases_parse(char *dir, struct list_head *head)
if (!strcmp(name, ".") || !strcmp(name, ".."))
continue;
+ /*
+ * skip .unit and .scale info files
+ * parsed in perf_pmu__new_alias()
+ */
+ len = strlen(name);
+ if (len > 5 && !strcmp(name + len - 5, ".unit"))
+ continue;
+ if (len > 6 && !strcmp(name + len - 6, ".scale"))
+ continue;
+
snprintf(path, PATH_MAX, "%s/%s", dir, name);
ret = -EINVAL;
file = fopen(path, "r");
if (!file)
break;
- ret = perf_pmu__new_alias(head, name, file);
+
+ ret = perf_pmu__new_alias(head, dir, name, file);
fclose(file);
}
@@ -508,16 +607,42 @@ static struct perf_pmu_alias *pmu_find_alias(struct perf_pmu *pmu,
return NULL;
}
+
+static int check_unit_scale(struct perf_pmu_alias *alias,
+ char **unit, double *scale)
+{
+ /*
+ * Only one term in event definition can
+ * define unit and scale, fail if there's
+ * more than one.
+ */
+ if ((*unit && alias->unit) ||
+ (*scale && alias->scale))
+ return -EINVAL;
+
+ if (alias->unit)
+ *unit = alias->unit;
+
+ if (alias->scale)
+ *scale = alias->scale;
+
+ return 0;
+}
+
/*
* Find alias in the terms list and replace it with the terms
* defined for the alias
*/
-int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms)
+int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
+ char **unit, double *scale)
{
struct parse_events_term *term, *h;
struct perf_pmu_alias *alias;
int ret;
+ *unit = NULL;
+ *scale = 0;
+
list_for_each_entry_safe(term, h, head_terms, list) {
alias = pmu_find_alias(pmu, term);
if (!alias)
@@ -525,6 +650,11 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms)
ret = pmu_alias_terms(alias, &term->list);
if (ret)
return ret;
+
+ ret = check_unit_scale(alias, unit, scale);
+ if (ret)
+ return ret;
+
list_del(&term->list);
free(term);
}
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 1179b26f244a..9183380e2038 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -28,7 +28,8 @@ int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr,
int perf_pmu__config_terms(struct list_head *formats,
struct perf_event_attr *attr,
struct list_head *head_terms);
-int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms);
+int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
+ char **unit, double *scale);
struct list_head *perf_pmu__alias(struct perf_pmu *pmu,
struct list_head *head_terms);
int perf_pmu_wrap(void);
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-27 11:19:59 +0000