Fixed delay is not working

Networking
1

Hi Guys,
I am here newbie on Istio. I am doing some POC on service mesh on Amazon EKS.
I am using Istio demo profile. traffic is working fine from both services.

Here I am trying to create some delay on every request about 8 seconds but it is not working. can someone help on this?
Below code i am using:

kind: VirtualService
apiVersion: networking.istio.io/v1alpha3
metadata:
  name: test
  namespace: test
  selfLink: >-
    /apis/networking.istio.io/v1alpha3/namespaces/test/virtualservices/test
  uid: f4826b68-3b63-11ea-b800-125b224c8bc5
  resourceVersion: '9119063'
  generation: 2
  creationTimestamp: '2020-01-20T09:05:07Z'
  annotations:
    kubectl.kubernetes.io/last-applied-configuration: >
      {"apiVersion":"networking.istio.io/v1alpha3","kind":"VirtualService","metadata":{"annotations":{},"name":"test","namespace":"test"},"spec":{"gateways":["test-info"],"hosts":["*.test.svc.cluster.local"],"http":[{"fault":{"delay":{"fixedDelay":"8s","percentage":{"value":100}}},"match":[{"uri":{"exact":"/test"}}],"route":[{"destination":{"host":"test.test.svc.cluster.local","port":{"number":8093},"subset":"v1"},"weight":50},{"destination":{"host":"test.test.svc.cluster.local","port":{"number":8093},"subset":"v2"},"weight":50}]}]}}
spec:
  hosts:
    - '*.test.svc.cluster.local'
  gateways:
    - test-info
  http:
    - fault:
        delay:
          fixedDelay: 8s
          percentage:
            value: 100
      match:
        - uri:
            exact: /test
      route:
        - destination:
            host: test.test.svc.cluster.local
            port:
              number: 8093
            subset: v1
          weight: 50
        - destination:
            host: test.test.svc.cluster.local
            port:
              number: 8093
            subset: v2
          weight: 50

After deploy delay. I am testing with time command:
time curl -I test.us-west-2.elb.amazonaws.com/test -H ‘name: test’
> real 0m0.889s
> user 0m0.006s
> sys 0m0.008s

Thanks