perf stat: Disable metric thresholds for CSV and JSON metric-only mode

These modes don't use the threshold, so don't compute it saving time and potentially reducing events. Signed-off-by: Ian Rogers <[email protected]>
googleprodkernel · Oct 29, 2024 · affd3c4 · affd3c4
1 parent cc51436
commit affd3c4
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
@@ -2561,6 +2561,14 @@ int cmd_stat(int argc, const char **argv)
 		goto out;
 	}
 
+	if (stat_config.csv_output || (stat_config.metric_only && stat_config.json_output)) {
+		/*
+		 * Current CSV and metric-only JSON output doesn't display the
+		 * metric threshold so don't compute it.
+		 */
+		stat_config.metric_no_threshold = true;
+	}
+
 	if (stat_config.walltime_run_table && stat_config.run_count <= 1) {
 		fprintf(stderr, "--table is only supported with -r\n");
 		parse_options_usage(stat_usage, stat_options, "r", 1);