1 files changed, 14 insertions, 0 deletions
diff --git a/test/benchmarks/harness/harness.go b/test/benchmarks/harness/harness.go
index 68bd7b4cf..e14cce987 100644
--- a/test/benchmarks/harness/harness.go
+++ b/test/benchmarks/harness/harness.go
@@ -17,17 +17,31 @@ package harness
 
 import (
 	"flag"
+	"fmt"
+	"os"
 
 	"gvisor.dev/gvisor/pkg/test/dockerutil"
 )
 
+var (
+	help = flag.Bool("help", false, "print this usage message")
+)
+
 // Harness is a handle for managing state in benchmark runs.
 type Harness struct {
 }
 
 // Init performs any harness initilialization before runs.
 func (h *Harness) Init() error {
+	flag.Usage = func() {
+		fmt.Fprintf(os.Stderr, "Usage: %s -- --test.bench=<regex>\n", os.Args[0])
+		flag.PrintDefaults()
+	}
 	flag.Parse()
+	if flag.NFlag() == 0 || *help {
+		flag.Usage()
+		os.Exit(0)
+	}
 	dockerutil.EnsureSupportedDockerVersion()
 	return nil
 }