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perf stat: Add --metric-only support for -A 

Add metric only support for -A too. This requires a new print function
that prints the metrics in the right order.

v2: Fix manpage
v3: Simplify nrcpus computation

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1457049458-28956-7-git-send-email-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Andi Kleen 2016-03-03 15:57:37 -08:00 committed by Arnaldo Carvalho de Melo
parent 54b5091606
commit 206cab651d
2 changed files with 38 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tools/perf/Documentation/perf-stat.txt
View File

@ -149,7 +149,7 @@ The overhead percentage could be high in some cases, for instance with small, su
--metric-only::
Only print computed metrics. Print them in a single line.
Don't show any raw values. Not supported with -A or --per-thread.
Don't show any raw values. Not supported with --per-thread.
--per-socket::
Aggregate counts per processor socket for system-wide mode measurements. This

45
tools/perf/builtin-stat.c
View File

@ -1250,10 +1250,40 @@ static void print_counter(struct perf_evsel *counter, char *prefix)
}
}
static void print_no_aggr_metric(char *prefix)
{
int cpu;
int nrcpus = 0;
struct perf_evsel *counter;
u64 ena, run, val;
double uval;
nrcpus = evsel_list->cpus->nr;
for (cpu = 0; cpu < nrcpus; cpu++) {
bool first = true;
if (prefix)
fputs(prefix, stat_config.output);
evlist__for_each(evsel_list, counter) {
if (first) {
aggr_printout(counter, cpu, 0);
first = false;
}
val = perf_counts(counter->counts, cpu, 0)->val;
ena = perf_counts(counter->counts, cpu, 0)->ena;
run = perf_counts(counter->counts, cpu, 0)->run;
uval = val * counter->scale;
printout(cpu, 0, counter, uval, prefix, run, ena, 1.0);
}
fputc('\n', stat_config.output);
}
}
static int aggr_header_lens[] = {
[AGGR_CORE] = 18,
[AGGR_SOCKET] = 12,
[AGGR_NONE] = 15,
[AGGR_NONE] = 6,
[AGGR_THREAD] = 24,
[AGGR_GLOBAL] = 0,
};
@ -1408,8 +1438,12 @@ static void print_counters(struct timespec *ts, int argc, const char **argv)
fputc('\n', stat_config.output);
break;
case AGGR_NONE:
evlist__for_each(evsel_list, counter)
print_counter(counter, prefix);
if (metric_only)
print_no_aggr_metric(prefix);
else {
evlist__for_each(evsel_list, counter)
print_counter(counter, prefix);
}
break;
case AGGR_UNSET:
default:
@ -2178,11 +2212,6 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
goto out;
}
if (metric_only && stat_config.aggr_mode == AGGR_NONE) {
fprintf(stderr, "--metric-only is not supported with -A\n");
goto out;
}
if (metric_only && run_count > 1) {
fprintf(stderr, "--metric-only is not supported with -r\n");
goto out;