Add benchmark for http requests.

config/confighttp/confighttp_test.go

@@ -626,3 +626,24 @@ func TestHttpHeaders(t *testing.T) {
 		})
 	}
 }
+
+func BenchmarkHttpRequest(b *testing.B) {
+
+	hss := &HTTPServerSettings{
+		Endpoint: "localhost:0",
+	}
+	s := hss.ToServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		_, errWrite := fmt.Fprint(w, "test")
+		assert.NoError(b, errWrite)
+	}))
+
+	req := httptest.NewRequest("GET", "/", nil)
+
+	for i := 0; i < b.N; i++ {
+		rw := httptest.NewRecorder()
+
+		// Use the handler generated by ToServer for benchmarking
+		// to avoid network artifacts
+		s.Handler.ServeHTTP(rw, req)
+	}
+}