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perf stat: Rework header display 

There are print_header() and print_interval() to print header lines before
actual counter values.  Also print_metric_headers() needs to be called for
the metric-only case.

Let's move all these logics to a single place including num_print_iv to
refresh the headers for interval mode.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-15-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2022-11-14 15:02:22 -08:00 committed by Arnaldo Carvalho de Melo
parent 6108712c07
commit 4c86b664f4
1 changed files with 108 additions and 81 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

189
tools/perf/util/stat-display.c
View File

@ -1034,94 +1034,129 @@ static void prepare_interval(struct perf_stat_config *config,
ts->tv_sec, ts->tv_nsec);
}
static void print_interval(struct perf_stat_config *config,
struct evlist *evlist)
static void print_header_interval_std(struct perf_stat_config *config,
struct target *_target __maybe_unused,
struct evlist *evlist,
int argc __maybe_unused,
const char **argv __maybe_unused)
{
bool metric_only = config->metric_only;
unsigned int unit_width = config->unit_width;
FILE *output = config->output;
static int num_print_interval;
if (config->interval_clear && isatty(fileno(output)))
puts(CONSOLE_CLEAR);
if ((num_print_interval == 0 || config->interval_clear) &&
!config->csv_output && !config->json_output) {
switch (config->aggr_mode) {
case AGGR_NODE:
case AGGR_SOCKET:
case AGGR_DIE:
case AGGR_CORE:
fprintf(output, "#%*s %-*s cpus",
INTERVAL_LEN - 1, "time",
aggr_header_lens[config->aggr_mode],
aggr_header_std[config->aggr_mode]);
break;
case AGGR_NONE:
fprintf(output, "#%*s %-*s",
INTERVAL_LEN - 1, "time",
aggr_header_lens[config->aggr_mode],
aggr_header_std[config->aggr_mode]);
break;
case AGGR_THREAD:
fprintf(output, "#%*s %*s-%-*s",
INTERVAL_LEN - 1, "time",
COMM_LEN, "comm", PID_LEN, "pid");
break;
case AGGR_GLOBAL:
default:
if (!config->iostat_run)
fprintf(output, "#%*s",
INTERVAL_LEN - 1, "time");
case AGGR_UNSET:
case AGGR_MAX:
break;
}
if (!metric_only) {
fprintf(output, " %*s %*s events\n",
COUNTS_LEN, "counts", unit_width, "unit");
}
switch (config->aggr_mode) {
case AGGR_NODE:
case AGGR_SOCKET:
case AGGR_DIE:
case AGGR_CORE:
fprintf(output, "#%*s %-*s cpus",
INTERVAL_LEN - 1, "time",
aggr_header_lens[config->aggr_mode],
aggr_header_std[config->aggr_mode]);
break;
case AGGR_NONE:
fprintf(output, "#%*s %-*s",
INTERVAL_LEN - 1, "time",
aggr_header_lens[config->aggr_mode],
aggr_header_std[config->aggr_mode]);
break;
case AGGR_THREAD:
fprintf(output, "#%*s %*s-%-*s",
INTERVAL_LEN - 1, "time",
COMM_LEN, "comm", PID_LEN, "pid");
break;
case AGGR_GLOBAL:
default:
if (!config->iostat_run)
fprintf(output, "#%*s",
INTERVAL_LEN - 1, "time");
case AGGR_UNSET:
case AGGR_MAX:
break;
}
if ((num_print_interval == 0 || config->interval_clear) && metric_only)
if (config->metric_only)
print_metric_headers(config, evlist, " ", true);
if (++num_print_interval == 25)
num_print_interval = 0;
else
fprintf(output, " %*s %*s events\n",
COUNTS_LEN, "counts", config->unit_width, "unit");
}
static void print_header(struct perf_stat_config *config,
struct target *_target,
int argc, const char **argv)
static void print_header_std(struct perf_stat_config *config,
struct target *_target, struct evlist *evlist,
int argc, const char **argv)
{
FILE *output = config->output;
int i;
fprintf(output, "\n");
fprintf(output, " Performance counter stats for ");
if (_target->bpf_str)
fprintf(output, "\'BPF program(s) %s", _target->bpf_str);
else if (_target->system_wide)
fprintf(output, "\'system wide");
else if (_target->cpu_list)
fprintf(output, "\'CPU(s) %s", _target->cpu_list);
else if (!target__has_task(_target)) {
fprintf(output, "\'%s", argv ? argv[0] : "pipe");
for (i = 1; argv && (i < argc); i++)
fprintf(output, " %s", argv[i]);
} else if (_target->pid)
fprintf(output, "process id \'%s", _target->pid);
else
fprintf(output, "thread id \'%s", _target->tid);
fprintf(output, "\'");
if (config->run_count > 1)
fprintf(output, " (%d runs)", config->run_count);
fprintf(output, ":\n\n");
if (config->metric_only)
print_metric_headers(config, evlist, " ", false);
}
static void print_header_csv(struct perf_stat_config *config,
struct target *_target __maybe_unused,
struct evlist *evlist,
int argc __maybe_unused,
const char **argv __maybe_unused)
{
if (config->metric_only)
print_metric_headers(config, evlist, " ", true);
}
static void print_header_json(struct perf_stat_config *config,
struct target *_target __maybe_unused,
struct evlist *evlist,
int argc __maybe_unused,
const char **argv __maybe_unused)
{
if (config->metric_only)
print_metric_headers(config, evlist, " ", true);
}
static void print_header(struct perf_stat_config *config,
struct target *_target,
struct evlist *evlist,
int argc, const char **argv)
{
static int num_print_iv;
fflush(stdout);
if (!config->csv_output && !config->json_output) {
fprintf(output, "\n");
fprintf(output, " Performance counter stats for ");
if (_target->bpf_str)
fprintf(output, "\'BPF program(s) %s", _target->bpf_str);
else if (_target->system_wide)
fprintf(output, "\'system wide");
else if (_target->cpu_list)
fprintf(output, "\'CPU(s) %s", _target->cpu_list);
else if (!target__has_task(_target)) {
fprintf(output, "\'%s", argv ? argv[0] : "pipe");
for (i = 1; argv && (i < argc); i++)
fprintf(output, " %s", argv[i]);
} else if (_target->pid)
fprintf(output, "process id \'%s", _target->pid);
else
fprintf(output, "thread id \'%s", _target->tid);
if (config->interval_clear)
puts(CONSOLE_CLEAR);
fprintf(output, "\'");
if (config->run_count > 1)
fprintf(output, " (%d runs)", config->run_count);
fprintf(output, ":\n\n");
if (num_print_iv == 0 || config->interval_clear) {
if (config->json_output)
print_header_json(config, _target, evlist, argc, argv);
else if (config->csv_output)
print_header_csv(config, _target, evlist, argc, argv);
else if (config->interval)
print_header_interval_std(config, _target, evlist, argc, argv);
else
print_header_std(config, _target, evlist, argc, argv);
}
if (num_print_iv++ == 25)
num_print_iv = 0;
}
static int get_precision(double num)
@ -1278,18 +1313,10 @@ void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *conf
if (interval) {
prefix = buf;
prepare_interval(config, prefix, ts);
print_interval(config, evlist);
} else {
print_header(config, _target, argc, argv);
}
print_header(config, _target, evlist, argc, argv);
if (metric_only) {
static int num_print_iv;
if (num_print_iv == 0 && !interval)
print_metric_headers(config, evlist, prefix, false);
if (num_print_iv++ == 25)
num_print_iv = 0;
if (config->aggr_mode == AGGR_GLOBAL && prefix && !config->iostat_run)
fprintf(config->output, "%s", prefix);
}