1 files changed, 6 insertions, 2 deletions
diff --git a/tools/sched_ext/scx_simple.c b/tools/sched_ext/scx_simple.c
index bead482e1383..76d83199545c 100644
--- a/tools/sched_ext/scx_simple.c
+++ b/tools/sched_ext/scx_simple.c
@@ -17,8 +17,9 @@ const char help_fmt[] =
 "\n"
 "See the top-level comment in .bpf.c for more details.\n"
 "\n"
-"Usage: %s [-v]\n"
+"Usage: %s [-f] [-v]\n"
 "\n"
+"  -f            Use FIFO scheduling instead of weighted vtime scheduling\n"
 "  -v            Print libbpf debug messages\n"
 "  -h            Display this help and exit\n";
 
@@ -70,8 +71,11 @@ int main(int argc, char **argv)
 restart:
 	skel = SCX_OPS_OPEN(simple_ops, scx_simple);
 
-	while ((opt = getopt(argc, argv, "vh")) != -1) {
+	while ((opt = getopt(argc, argv, "fvh")) != -1) {
 		switch (opt) {
+		case 'f':
+			skel->rodata->fifo_sched = true;
+			break;
 		case 'v':
 			verbose = true;
 			break;