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-rw-r--r--tools/perf/util/stat-display.c242
1 files changed, 133 insertions, 109 deletions
diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index 53dcdf07f5a2..ba79f73e1cf5 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -114,23 +114,59 @@ static void print_running_csv(struct perf_stat_config *config, u64 run, u64 ena)
fprintf(config->output, "%s%" PRIu64 "%s%.2f",
config->csv_sep, run, config->csv_sep, enabled_percent);
}
+struct outstate {
+ /* Std mode: insert a newline before the next metric */
+ bool newline;
+ /* JSON mode: track need for comma for a previous field or not */
+ bool first;
+ /* Num CSV separators remaining to pad out when not all fields are printed */
+ int csv_col_pad;
+
+ /*
+ * The following don't track state across fields, but are here as a shortcut to
+ * pass data to the print functions. The alternative would be to update the
+ * function signatures of the entire print stack to pass them through.
+ */
+ /* Place to output to */
+ FILE * const fh;
+ /* Lines are timestamped in --interval-print mode */
+ char timestamp[64];
+ /* Num items aggregated in current line. See struct perf_stat_aggr.nr */
+ int aggr_nr;
+ /* Core/socket/die etc ID for the current line */
+ struct aggr_cpu_id id;
+ /* Event for current line */
+ struct evsel *evsel;
+ /* Cgroup for current line */
+ struct cgroup *cgrp;
+};
+
+static const char *json_sep(struct outstate *os)
+{
+ const char *sep = os->first ? "" : ", ";
+
+ os->first = false;
+ return sep;
+}
+
+#define json_out(os, format, ...) fprintf((os)->fh, "%s" format, json_sep(os), ##__VA_ARGS__)
-static void print_running_json(struct perf_stat_config *config, u64 run, u64 ena)
+static void print_running_json(struct outstate *os, u64 run, u64 ena)
{
double enabled_percent = 100;
if (run != ena)
enabled_percent = 100 * run / ena;
- fprintf(config->output, "\"event-runtime\" : %" PRIu64 ", \"pcnt-running\" : %.2f, ",
- run, enabled_percent);
+ json_out(os, "\"event-runtime\" : %" PRIu64 ", \"pcnt-running\" : %.2f",
+ run, enabled_percent);
}
-static void print_running(struct perf_stat_config *config,
+static void print_running(struct perf_stat_config *config, struct outstate *os,
u64 run, u64 ena, bool before_metric)
{
if (config->json_output) {
if (before_metric)
- print_running_json(config, run, ena);
+ print_running_json(os, run, ena);
} else if (config->csv_output) {
if (before_metric)
print_running_csv(config, run, ena);
@@ -153,20 +189,20 @@ static void print_noise_pct_csv(struct perf_stat_config *config,
fprintf(config->output, "%s%.2f%%", config->csv_sep, pct);
}
-static void print_noise_pct_json(struct perf_stat_config *config,
+static void print_noise_pct_json(struct outstate *os,
double pct)
{
- fprintf(config->output, "\"variance\" : %.2f, ", pct);
+ json_out(os, "\"variance\" : %.2f", pct);
}
-static void print_noise_pct(struct perf_stat_config *config,
+static void print_noise_pct(struct perf_stat_config *config, struct outstate *os,
double total, double avg, bool before_metric)
{
double pct = rel_stddev_stats(total, avg);
if (config->json_output) {
if (before_metric)
- print_noise_pct_json(config, pct);
+ print_noise_pct_json(os, pct);
} else if (config->csv_output) {
if (before_metric)
print_noise_pct_csv(config, pct);
@@ -176,7 +212,7 @@ static void print_noise_pct(struct perf_stat_config *config,
}
}
-static void print_noise(struct perf_stat_config *config,
+static void print_noise(struct perf_stat_config *config, struct outstate *os,
struct evsel *evsel, double avg, bool before_metric)
{
struct perf_stat_evsel *ps;
@@ -185,7 +221,7 @@ static void print_noise(struct perf_stat_config *config,
return;
ps = evsel->stats;
- print_noise_pct(config, stddev_stats(&ps->res_stats), avg, before_metric);
+ print_noise_pct(config, os, stddev_stats(&ps->res_stats), avg, before_metric);
}
static void print_cgroup_std(struct perf_stat_config *config, const char *cgrp_name)
@@ -198,18 +234,19 @@ static void print_cgroup_csv(struct perf_stat_config *config, const char *cgrp_n
fprintf(config->output, "%s%s", config->csv_sep, cgrp_name);
}
-static void print_cgroup_json(struct perf_stat_config *config, const char *cgrp_name)
+static void print_cgroup_json(struct outstate *os, const char *cgrp_name)
{
- fprintf(config->output, "\"cgroup\" : \"%s\", ", cgrp_name);
+ json_out(os, "\"cgroup\" : \"%s\"", cgrp_name);
}
-static void print_cgroup(struct perf_stat_config *config, struct cgroup *cgrp)
+static void print_cgroup(struct perf_stat_config *config, struct outstate *os,
+ struct cgroup *cgrp)
{
if (nr_cgroups || config->cgroup_list) {
const char *cgrp_name = cgrp ? cgrp->name : "";
if (config->json_output)
- print_cgroup_json(config, cgrp_name);
+ print_cgroup_json(os, cgrp_name);
else if (config->csv_output)
print_cgroup_csv(config, cgrp_name);
else
@@ -324,47 +361,45 @@ static void print_aggr_id_csv(struct perf_stat_config *config,
}
}
-static void print_aggr_id_json(struct perf_stat_config *config,
+static void print_aggr_id_json(struct perf_stat_config *config, struct outstate *os,
struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr)
{
- FILE *output = config->output;
-
switch (config->aggr_mode) {
case AGGR_CORE:
- fprintf(output, "\"core\" : \"S%d-D%d-C%d\", \"aggregate-number\" : %d, ",
+ json_out(os, "\"core\" : \"S%d-D%d-C%d\", \"aggregate-number\" : %d",
id.socket, id.die, id.core, aggr_nr);
break;
case AGGR_CACHE:
- fprintf(output, "\"cache\" : \"S%d-D%d-L%d-ID%d\", \"aggregate-number\" : %d, ",
+ json_out(os, "\"cache\" : \"S%d-D%d-L%d-ID%d\", \"aggregate-number\" : %d",
id.socket, id.die, id.cache_lvl, id.cache, aggr_nr);
break;
case AGGR_CLUSTER:
- fprintf(output, "\"cluster\" : \"S%d-D%d-CLS%d\", \"aggregate-number\" : %d, ",
+ json_out(os, "\"cluster\" : \"S%d-D%d-CLS%d\", \"aggregate-number\" : %d",
id.socket, id.die, id.cluster, aggr_nr);
break;
case AGGR_DIE:
- fprintf(output, "\"die\" : \"S%d-D%d\", \"aggregate-number\" : %d, ",
+ json_out(os, "\"die\" : \"S%d-D%d\", \"aggregate-number\" : %d",
id.socket, id.die, aggr_nr);
break;
case AGGR_SOCKET:
- fprintf(output, "\"socket\" : \"S%d\", \"aggregate-number\" : %d, ",
+ json_out(os, "\"socket\" : \"S%d\", \"aggregate-number\" : %d",
id.socket, aggr_nr);
break;
case AGGR_NODE:
- fprintf(output, "\"node\" : \"N%d\", \"aggregate-number\" : %d, ",
+ json_out(os, "\"node\" : \"N%d\", \"aggregate-number\" : %d",
id.node, aggr_nr);
break;
case AGGR_NONE:
if (evsel->percore && !config->percore_show_thread) {
- fprintf(output, "\"core\" : \"S%d-D%d-C%d\"",
+ json_out(os, "\"core\" : \"S%d-D%d-C%d\"",
id.socket, id.die, id.core);
} else if (id.cpu.cpu > -1) {
- fprintf(output, "\"cpu\" : \"%d\", ",
+ json_out(os, "\"cpu\" : \"%d\"",
id.cpu.cpu);
}
break;
case AGGR_THREAD:
- fprintf(output, "\"thread\" : \"%s-%d\", ",
+ json_out(os, "\"thread\" : \"%s-%d\"",
perf_thread_map__comm(evsel->core.threads, id.thread_idx),
perf_thread_map__pid(evsel->core.threads, id.thread_idx));
break;
@@ -376,29 +411,17 @@ static void print_aggr_id_json(struct perf_stat_config *config,
}
}
-static void aggr_printout(struct perf_stat_config *config,
+static void aggr_printout(struct perf_stat_config *config, struct outstate *os,
struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr)
{
if (config->json_output)
- print_aggr_id_json(config, evsel, id, aggr_nr);
+ print_aggr_id_json(config, os, evsel, id, aggr_nr);
else if (config->csv_output)
print_aggr_id_csv(config, evsel, id, aggr_nr);
else
print_aggr_id_std(config, evsel, id, aggr_nr);
}
-struct outstate {
- FILE *fh;
- bool newline;
- bool first;
- const char *prefix;
- int nfields;
- int aggr_nr;
- struct aggr_cpu_id id;
- struct evsel *evsel;
- struct cgroup *cgrp;
-};
-
static void new_line_std(struct perf_stat_config *config __maybe_unused,
void *ctx)
{
@@ -411,9 +434,9 @@ static inline void __new_line_std_csv(struct perf_stat_config *config,
struct outstate *os)
{
fputc('\n', os->fh);
- if (os->prefix)
- fputs(os->prefix, os->fh);
- aggr_printout(config, os->evsel, os->id, os->aggr_nr);
+ if (config->interval)
+ fputs(os->timestamp, os->fh);
+ aggr_printout(config, os, os->evsel, os->id, os->aggr_nr);
}
static inline void __new_line_std(struct outstate *os)
@@ -464,7 +487,7 @@ static void new_line_csv(struct perf_stat_config *config, void *ctx)
int i;
__new_line_std_csv(config, os);
- for (i = 0; i < os->nfields; i++)
+ for (i = 0; i < os->csv_col_pad; i++)
fputs(config->csv_sep, os->fh);
}
@@ -499,9 +522,9 @@ static void print_metric_json(struct perf_stat_config *config __maybe_unused,
FILE *out = os->fh;
if (unit) {
- fprintf(out, "\"metric-value\" : \"%f\", \"metric-unit\" : \"%s\"", val, unit);
+ json_out(os, "\"metric-value\" : \"%f\", \"metric-unit\" : \"%s\"", val, unit);
if (thresh != METRIC_THRESHOLD_UNKNOWN) {
- fprintf(out, ", \"metric-threshold\" : \"%s\"",
+ json_out(os, "\"metric-threshold\" : \"%s\"",
metric_threshold_classify__str(thresh));
}
}
@@ -514,9 +537,11 @@ static void new_line_json(struct perf_stat_config *config, void *ctx)
struct outstate *os = ctx;
fputs("\n{", os->fh);
- if (os->prefix)
- fprintf(os->fh, "%s", os->prefix);
- aggr_printout(config, os->evsel, os->id, os->aggr_nr);
+ os->first = true;
+ if (config->interval)
+ json_out(os, "%s", os->timestamp);
+
+ aggr_printout(config, os, os->evsel, os->id, os->aggr_nr);
}
static void print_metricgroup_header_json(struct perf_stat_config *config,
@@ -526,7 +551,7 @@ static void print_metricgroup_header_json(struct perf_stat_config *config,
if (!metricgroup_name)
return;
- fprintf(config->output, "\"metricgroup\" : \"%s\"}", metricgroup_name);
+ json_out((struct outstate *) ctx, "\"metricgroup\" : \"%s\"}", metricgroup_name);
new_line_json(config, ctx);
}
@@ -539,12 +564,12 @@ static void print_metricgroup_header_csv(struct perf_stat_config *config,
if (!metricgroup_name) {
/* Leave space for running and enabling */
- for (i = 0; i < os->nfields - 2; i++)
+ for (i = 0; i < os->csv_col_pad - 2; i++)
fputs(config->csv_sep, os->fh);
return;
}
- for (i = 0; i < os->nfields; i++)
+ for (i = 0; i < os->csv_col_pad; i++)
fputs(config->csv_sep, os->fh);
fprintf(config->output, "%s", metricgroup_name);
new_line_csv(config, ctx);
@@ -644,7 +669,6 @@ static void print_metric_only_json(struct perf_stat_config *config __maybe_unuse
const char *unit, double val)
{
struct outstate *os = ctx;
- FILE *out = os->fh;
char buf[64], *ends;
char tbuf[1024];
const char *vals;
@@ -661,13 +685,7 @@ static void print_metric_only_json(struct perf_stat_config *config __maybe_unuse
*ends = 0;
if (!vals[0])
vals = "none";
- fprintf(out, "%s\"%s\" : \"%s\"", os->first ? "" : ", ", unit, vals);
- os->first = false;
-}
-
-static void new_line_metric(struct perf_stat_config *config __maybe_unused,
- void *ctx __maybe_unused)
-{
+ json_out(os, "\"%s\" : \"%s\"", unit, vals);
}
static void print_metric_header(struct perf_stat_config *config,
@@ -743,28 +761,27 @@ static void print_counter_value_csv(struct perf_stat_config *config,
fprintf(output, "%s", evsel__name(evsel));
}
-static void print_counter_value_json(struct perf_stat_config *config,
+static void print_counter_value_json(struct outstate *os,
struct evsel *evsel, double avg, bool ok)
{
- FILE *output = config->output;
const char *bad_count = evsel->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED;
if (ok)
- fprintf(output, "\"counter-value\" : \"%f\", ", avg);
+ json_out(os, "\"counter-value\" : \"%f\"", avg);
else
- fprintf(output, "\"counter-value\" : \"%s\", ", bad_count);
+ json_out(os, "\"counter-value\" : \"%s\"", bad_count);
if (evsel->unit)
- fprintf(output, "\"unit\" : \"%s\", ", evsel->unit);
+ json_out(os, "\"unit\" : \"%s\"", evsel->unit);
- fprintf(output, "\"event\" : \"%s\", ", evsel__name(evsel));
+ json_out(os, "\"event\" : \"%s\"", evsel__name(evsel));
}
-static void print_counter_value(struct perf_stat_config *config,
+static void print_counter_value(struct perf_stat_config *config, struct outstate *os,
struct evsel *evsel, double avg, bool ok)
{
if (config->json_output)
- print_counter_value_json(config, evsel, avg, ok);
+ print_counter_value_json(os, evsel, avg, ok);
else if (config->csv_output)
print_counter_value_csv(config, evsel, avg, ok);
else
@@ -772,12 +789,13 @@ static void print_counter_value(struct perf_stat_config *config,
}
static void abs_printout(struct perf_stat_config *config,
+ struct outstate *os,
struct aggr_cpu_id id, int aggr_nr,
struct evsel *evsel, double avg, bool ok)
{
- aggr_printout(config, evsel, id, aggr_nr);
- print_counter_value(config, evsel, avg, ok);
- print_cgroup(config, evsel->cgrp);
+ aggr_printout(config, os, evsel, id, aggr_nr);
+ print_counter_value(config, os, evsel, avg, ok);
+ print_cgroup(config, os, evsel->cgrp);
}
static bool is_mixed_hw_group(struct evsel *counter)
@@ -831,22 +849,23 @@ static void printout(struct perf_stat_config *config, struct outstate *os,
if (config->csv_output) {
pm = config->metric_only ? print_metric_only_csv : print_metric_csv;
- nl = config->metric_only ? new_line_metric : new_line_csv;
+ nl = config->metric_only ? NULL : new_line_csv;
pmh = print_metricgroup_header_csv;
- os->nfields = 4 + (counter->cgrp ? 1 : 0);
+ os->csv_col_pad = 4 + (counter->cgrp ? 1 : 0);
} else if (config->json_output) {
pm = config->metric_only ? print_metric_only_json : print_metric_json;
- nl = config->metric_only ? new_line_metric : new_line_json;
+ nl = config->metric_only ? NULL : new_line_json;
pmh = print_metricgroup_header_json;
} else {
pm = config->metric_only ? print_metric_only : print_metric_std;
- nl = config->metric_only ? new_line_metric : new_line_std;
+ nl = config->metric_only ? NULL : new_line_std;
pmh = print_metricgroup_header_std;
}
if (run == 0 || ena == 0 || counter->counts->scaled == -1) {
if (config->metric_only) {
- pm(config, os, METRIC_THRESHOLD_UNKNOWN, "", "", 0);
+ pm(config, os, METRIC_THRESHOLD_UNKNOWN, /*format=*/NULL,
+ /*unit=*/NULL, /*val=*/0);
return;
}
@@ -868,17 +887,17 @@ static void printout(struct perf_stat_config *config, struct outstate *os,
out.force_header = false;
if (!config->metric_only && !counter->default_metricgroup) {
- abs_printout(config, os->id, os->aggr_nr, counter, uval, ok);
+ abs_printout(config, os, os->id, os->aggr_nr, counter, uval, ok);
- print_noise(config, counter, noise, /*before_metric=*/true);
- print_running(config, run, ena, /*before_metric=*/true);
+ print_noise(config, os, counter, noise, /*before_metric=*/true);
+ print_running(config, os, run, ena, /*before_metric=*/true);
}
if (ok) {
if (!config->metric_only && counter->default_metricgroup) {
void *from = NULL;
- aggr_printout(config, os->evsel, os->id, os->aggr_nr);
+ aggr_printout(config, os, os->evsel, os->id, os->aggr_nr);
/* Print out all the metricgroup with the same metric event. */
do {
int num = 0;
@@ -891,8 +910,8 @@ static void printout(struct perf_stat_config *config, struct outstate *os,
__new_line_std_csv(config, os);
}
- print_noise(config, counter, noise, /*before_metric=*/true);
- print_running(config, run, ena, /*before_metric=*/true);
+ print_noise(config, os, counter, noise, /*before_metric=*/true);
+ print_running(config, os, run, ena, /*before_metric=*/true);
from = perf_stat__print_shadow_stats_metricgroup(config, counter, aggr_idx,
&num, from, &out,
&config->metric_events);
@@ -901,12 +920,12 @@ static void printout(struct perf_stat_config *config, struct outstate *os,
perf_stat__print_shadow_stats(config, counter, uval, aggr_idx,
&out, &config->metric_events);
} else {
- pm(config, os, METRIC_THRESHOLD_UNKNOWN, /*format=*/NULL, /*unit=*/"", /*val=*/0);
+ pm(config, os, METRIC_THRESHOLD_UNKNOWN, /*format=*/NULL, /*unit=*/NULL, /*val=*/0);
}
if (!config->metric_only) {
- print_noise(config, counter, noise, /*before_metric=*/false);
- print_running(config, run, ena, /*before_metric=*/false);
+ print_noise(config, os, counter, noise, /*before_metric=*/false);
+ print_running(config, os, run, ena, /*before_metric=*/false);
}
}
@@ -1083,12 +1102,17 @@ static void print_counter_aggrdata(struct perf_stat_config *config,
return;
if (!metric_only) {
- if (config->json_output)
+ if (config->json_output) {
+ os->first = true;
fputc('{', output);
- if (os->prefix)
- fprintf(output, "%s", os->prefix);
- else if (config->summary && config->csv_output &&
- !config->no_csv_summary && !config->interval)
+ }
+ if (config->interval) {
+ if (config->json_output)
+ json_out(os, "%s", os->timestamp);
+ else
+ fprintf(output, "%s", os->timestamp);
+ } else if (config->summary && config->csv_output &&
+ !config->no_csv_summary)
fprintf(output, "%s%s", "summary", config->csv_sep);
}
@@ -1114,15 +1138,19 @@ static void print_metric_begin(struct perf_stat_config *config,
if (config->json_output)
fputc('{', config->output);
- if (os->prefix)
- fprintf(config->output, "%s", os->prefix);
+ if (config->interval) {
+ if (config->json_output)
+ json_out(os, "%s", os->timestamp);
+ else
+ fprintf(config->output, "%s", os->timestamp);
+ }
evsel = evlist__first(evlist);
id = config->aggr_map->map[aggr_idx];
aggr = &evsel->stats->aggr[aggr_idx];
- aggr_printout(config, evsel, id, aggr->nr);
+ aggr_printout(config, os, evsel, id, aggr->nr);
- print_cgroup(config, os->cgrp ? : evsel->cgrp);
+ print_cgroup(config, os, os->cgrp ? : evsel->cgrp);
}
static void print_metric_end(struct perf_stat_config *config, struct outstate *os)
@@ -1301,7 +1329,7 @@ static void print_metric_headers(struct perf_stat_config *config,
struct perf_stat_output_ctx out = {
.ctx = &os,
.print_metric = print_metric_header,
- .new_line = new_line_metric,
+ .new_line = NULL,
.force_header = true,
};
@@ -1336,20 +1364,20 @@ static void print_metric_headers(struct perf_stat_config *config,
fputc('\n', config->output);
}
-static void prepare_interval(struct perf_stat_config *config,
- char *prefix, size_t len, struct timespec *ts)
+static void prepare_timestamp(struct perf_stat_config *config,
+ struct outstate *os, struct timespec *ts)
{
if (config->iostat_run)
return;
if (config->json_output)
- scnprintf(prefix, len, "\"interval\" : %lu.%09lu, ",
+ scnprintf(os->timestamp, sizeof(os->timestamp), "\"interval\" : %lu.%09lu",
(unsigned long) ts->tv_sec, ts->tv_nsec);
else if (config->csv_output)
- scnprintf(prefix, len, "%lu.%09lu%s",
+ scnprintf(os->timestamp, sizeof(os->timestamp), "%lu.%09lu%s",
(unsigned long) ts->tv_sec, ts->tv_nsec, config->csv_sep);
else
- scnprintf(prefix, len, "%6lu.%09lu ",
+ scnprintf(os->timestamp, sizeof(os->timestamp), "%6lu.%09lu ",
(unsigned long) ts->tv_sec, ts->tv_nsec);
}
@@ -1557,7 +1585,7 @@ static void print_footer(struct perf_stat_config *config)
fprintf(output, " %17.*f +- %.*f seconds time elapsed",
precision, avg, precision, sd);
- print_noise_pct(config, sd, avg, /*before_metric=*/false);
+ print_noise_pct(config, NULL, sd, avg, /*before_metric=*/false);
}
fprintf(output, "\n\n");
@@ -1672,9 +1700,7 @@ void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *conf
int argc, const char **argv)
{
bool metric_only = config->metric_only;
- int interval = config->interval;
struct evsel *counter;
- char buf[64];
struct outstate os = {
.fh = config->output,
.first = true,
@@ -1685,10 +1711,8 @@ void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *conf
if (config->iostat_run)
evlist->selected = evlist__first(evlist);
- if (interval) {
- os.prefix = buf;
- prepare_interval(config, buf, sizeof(buf), ts);
- }
+ if (config->interval)
+ prepare_timestamp(config, &os, ts);
print_header(config, _target, evlist, argc, argv);
@@ -1707,7 +1731,7 @@ void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *conf
case AGGR_THREAD:
case AGGR_GLOBAL:
if (config->iostat_run) {
- iostat_print_counters(evlist, config, ts, buf,
+ iostat_print_counters(evlist, config, ts, os.timestamp,
(iostat_print_counter_t)print_counter, &os);
} else if (config->cgroup_list) {
print_cgroup_counter(config, evlist, &os);
generated by cgit v1.2.3 (git 2.39.0) at 2025-05-08 04:22:48 +0300