diff --git a/scripts/perf/vhost/run_vhost_test.sh b/scripts/perf/vhost/run_vhost_test.sh
index 6452f8ab7..4093fe56d 100755
--- a/scripts/perf/vhost/run_vhost_test.sh
+++ b/scripts/perf/vhost/run_vhost_test.sh
@@ -5,6 +5,9 @@ rootdir=$(readlink -f "$curdir/../../../")
 
 source "$rootdir/test/vhost/common.sh"
 
+# Allow for the fio_conf() to slurp extra config from the stdin.
+exec {fio_extra_conf}<&0
+
 fio_conf() {
 	cat <<- FIO
 		[global]
@@ -25,6 +28,14 @@ fio_conf() {
 		FIO_URING
 	fi
 
+	if [[ -e $fio_extra_conf ]]; then
+		# Overriden through cmdline|env
+		cat "$fio_extra_conf"
+	elif [[ ! -t $fio_extra_conf ]]; then
+		# Attached to stdin
+		cat <&"$fio_extra_conf"
+	fi
+
 	cat <<- FIO
 		[perf_test]
 		stonewall