linux-kernel - [PATCH 06/19] perf stat: Factor out print_counter

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Date:   Mon, 14 Nov 2022 15:02:14 -0800
From:   Namhyung Kim <namhyung@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-perf-users@...r.kernel.org,
        Kan Liang <kan.liang@...ux.intel.com>,
        Zhengjun Xing <zhengjun.xing@...ux.intel.com>,
        James Clark <james.clark@....com>,
        Athira Jajeev <atrajeev@...ux.vnet.ibm.com>
Subject: [PATCH 06/19] perf stat: Factor out print_counter_value() function

And split it for each output mode like others.  I believe it makes the
code simpler and more intuitive.  Now abs_printout() becomes just to
call sub-functions.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/util/stat-display.c | 81 ++++++++++++++++++++++------------
 1 file changed, 53 insertions(+), 28 deletions(-)

diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index ed421f6d512f..a72c7442ff3d 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -517,46 +517,71 @@ static void print_metric_header(struct perf_stat_config *config,
 		fprintf(os->fh, "%*s ", config->metric_only_len, unit);
 }
 
-static void abs_printout(struct perf_stat_config *config,
-			 struct aggr_cpu_id id, int nr, struct evsel *evsel, double avg)
+static void print_counter_value_std(struct perf_stat_config *config,
+				    struct evsel *evsel, double avg)
 {
 	FILE *output = config->output;
 	double sc =  evsel->scale;
 	const char *fmt;
 
-	if (config->csv_output) {
-		fmt = floor(sc) != sc ?  "%.2f%s" : "%.0f%s";
-	} else {
-		if (config->big_num)
-			fmt = floor(sc) != sc ? "%'18.2f%s" : "%'18.0f%s";
-		else
-			fmt = floor(sc) != sc ? "%18.2f%s" : "%18.0f%s";
-	}
+	if (config->big_num)
+		fmt = floor(sc) != sc ? "%'18.2f " : "%'18.0f ";
+	else
+		fmt = floor(sc) != sc ? "%18.2f " : "%18.0f ";
 
-	aggr_printout(config, evsel, id, nr);
+	fprintf(output, fmt, avg);
 
-	if (config->json_output)
-		fprintf(output, "\"counter-value\" : \"%f\", ", avg);
-	else
-		fprintf(output, fmt, avg, config->csv_sep);
+	if (evsel->unit)
+		fprintf(output, "%-*s ", config->unit_width, evsel->unit);
 
-	if (config->json_output) {
-		if (evsel->unit) {
-			fprintf(output, "\"unit\" : \"%s\", ",
-				evsel->unit);
-		}
-	} else {
-		if (evsel->unit)
-			fprintf(output, "%-*s%s",
-				config->csv_output ? 0 : config->unit_width,
-				evsel->unit, config->csv_sep);
-	}
+	fprintf(output, "%-*s", 32, evsel__name(evsel));
+}
 
+static void print_counter_value_csv(struct perf_stat_config *config,
+				    struct evsel *evsel, double avg)
+{
+	FILE *output = config->output;
+	double sc =  evsel->scale;
+	const char *sep = config->csv_sep;
+	const char *fmt = floor(sc) != sc ? "%.2f%s" : "%.0f%s";
+
+	fprintf(output, fmt, avg, sep);
+
+	if (evsel->unit)
+		fprintf(output, "%s%s", evsel->unit, sep);
+
+	fprintf(output, "%s", evsel__name(evsel));
+}
+
+static void print_counter_value_json(struct perf_stat_config *config,
+				     struct evsel *evsel, double avg)
+{
+	FILE *output = config->output;
+
+	fprintf(output, "\"counter-value\" : \"%f\", ", avg);
+
+	if (evsel->unit)
+		fprintf(output, "\"unit\" : \"%s\", ", evsel->unit);
+
+	fprintf(output, "\"event\" : \"%s\", ", evsel__name(evsel));
+}
+
+static void print_counter_value(struct perf_stat_config *config,
+				struct evsel *evsel, double avg)
+{
 	if (config->json_output)
-		fprintf(output, "\"event\" : \"%s\", ", evsel__name(evsel));
+		print_counter_value_json(config, evsel, avg);
+	else if (config->csv_output)
+		print_counter_value_csv(config, evsel, avg);
 	else
-		fprintf(output, "%-*s", config->csv_output ? 0 : 32, evsel__name(evsel));
+		print_counter_value_std(config, evsel, avg);
+}
 
+static void abs_printout(struct perf_stat_config *config,
+			 struct aggr_cpu_id id, int nr, struct evsel *evsel, double avg)
+{
+	aggr_printout(config, evsel, id, nr);
+	print_counter_value(config, evsel, avg);
 	print_cgroup(config, evsel);
 }
 
-- 
2.38.1.493.g58b659f92b-goog