selftest/bpf/benchs: Make quiet option common

The "local-storage-tasks-trace" benchmark has a `--quiet` option. Move it to
the list of common options, so that the main code and other benchmarks can use
(new) env.quiet variable. Patch the run_bench_local_storage_rcu_tasks_trace.sh
helper script accordingly.
Signed-off-by: Anton Protopopov <aspsk@isovalent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20230213091519.1202813-6-aspsk@isovalent.com

tools/testing/selftests/bpf/bench.c

@@ -16,6 +16,7 @@ struct env env = {
 	.warmup_sec = 1,
 	.duration_sec = 5,
 	.affinity = false,
+	.quiet = false,
 	.consumer_cnt = 1,
 	.producer_cnt = 1,
 };
@@ -262,6 +263,7 @@ static const struct argp_option opts[] = {
 	{ "consumers", 'c', "NUM", 0, "Number of consumer threads"},
 	{ "verbose", 'v', NULL, 0, "Verbose debug output"},
 	{ "affinity", 'a', NULL, 0, "Set consumer/producer thread affinity"},
+	{ "quiet", 'q', NULL, 0, "Be more quiet"},
 	{ "prod-affinity", ARG_PROD_AFFINITY_SET, "CPUSET", 0,
 	  "Set of CPUs for producer threads; implies --affinity"},
 	{ "cons-affinity", ARG_CONS_AFFINITY_SET, "CPUSET", 0,
@@ -330,6 +332,9 @@ static error_t parse_arg(int key, char *arg, struct argp_state *state)
 	case 'a':
 		env.affinity = true;
 		break;
+	case 'q':
+		env.quiet = true;
+		break;
 	case ARG_PROD_AFFINITY_SET:
 		env.affinity = true;
 		if (parse_num_list(arg, &env.prod_cpus.cpus,

tools/testing/selftests/bpf/bench.h

@@ -24,6 +24,7 @@ struct env {
 	bool verbose;
 	bool list;
 	bool affinity;
+	bool quiet;
 	int consumer_cnt;
 	int producer_cnt;
 	struct cpu_set prod_cpus;

tools/testing/selftests/bpf/benchs/bench_local_storage_rcu_tasks_trace.c

@@ -12,17 +12,14 @@
 static struct {
 	__u32 nr_procs;
 	__u32 kthread_pid;
-	bool quiet;
 } args = {
 	.nr_procs = 1000,
 	.kthread_pid = 0,
-	.quiet = false,
 };
 
 enum {
 	ARG_NR_PROCS = 7000,
 	ARG_KTHREAD_PID = 7001,
-	ARG_QUIET = 7002,
 };
 
 static const struct argp_option opts[] = {
@@ -30,8 +27,6 @@ static const struct argp_option opts[] = {
 		"Set number of user processes to spin up"},
 	{ "kthread_pid", ARG_KTHREAD_PID, "PID", 0,
 		"Pid of rcu_tasks_trace kthread for ticks tracking"},
-	{ "quiet", ARG_QUIET, "{0,1}", 0,
-		"If true, don't report progress"},
 	{},
 };
 
@@ -56,14 +51,6 @@ static error_t parse_arg(int key, char *arg, struct argp_state *state)
 		}
 		args.kthread_pid = ret;
 		break;
-	case ARG_QUIET:
-		ret = strtol(arg, NULL, 10);
-		if (ret < 0 || ret > 1) {
-			fprintf(stderr, "invalid quiet %ld\n", ret);
-			argp_usage(state);
-		}
-		args.quiet = ret;
-		break;
 break;
 	default:
 		return ARGP_ERR_UNKNOWN;
@@ -230,7 +217,7 @@ static void report_progress(int iter, struct bench_res *res, long delta_ns)
 		exit(1);
 	}
 
-	if (args.quiet)
+	if (env.quiet)
 		return;
 
 	printf("Iter %d\t avg tasks_trace grace period latency\t%lf ns\n",

tools/testing/selftests/bpf/benchs/run_bench_local_storage_rcu_tasks_trace.sh

@@ -8,4 +8,4 @@ if [ -z $kthread_pid ]; then
 	exit 1
 fi
 
-./bench --nr_procs 15000 --kthread_pid $kthread_pid -d 600 --quiet 1 local-storage-tasks-trace
+./bench --nr_procs 15000 --kthread_pid $kthread_pid -d 600 --quiet local-storage-tasks-trace