Kubernetes - HPA won't autoscale the pods - kubernetes

Question

I am deploying my microservice application I built using node.
Issue
The pods won't autoscale when I put load using Jmeter. The CPU utitilization goes to 50m, which doesn't invoke HPA to start autoscaling. I want it to start replicating as soon as it reaches 80% of the CPU request(which is 10m).
HPA config :
# apiVersion: autoscaling/v1
apiVersion: autoscaling/v2beta2
kind: HorizontalPodAutoscaler
metadata:
name: client-hpa
namespace: default
spec:
minReplicas: 1
maxReplicas: 4
metrics:
- type: Resource
resource:
name: cpu
target:
type: Utilization
averageUtilization: 80
scaleTargetRef:
# apiVersion: apps/v1beta1
apiVersion: apps/v1
kind: Deployment
name: client-depl
Deployment config :
apiVersion: apps/v1
kind: Deployment
metadata:
name: client-depl
spec:
replicas: 1
selector:
matchLabels:
app: client
template:
metadata:
labels:
app: client
spec:
containers:
- name: client
image: <docker-id>/<image-name>
resources:
requests:
memory: 350Mi
cpu: 10m ### I want it to autoscale when it reaches 8m ###
Also, kubectl get hpa shows the following output :
$ kubectl get hpa
NAME REFERENCE TARGETS MINPODS MAXPODS REPLICAS AGE
client-hpa Deployment/client-depl <unknown>/80% 1 4 1 8m32s

Answer 1

HPA is based on the following equtation
desiredReplicas = ceil[currentReplicas * ( currentMetricValue / desiredMetricValue )]
As you can notice, equation is based on current cpu utilization and not on CPU requests. (I want it to autoscale when it reaches 8m).
That said, perhaps the following maybe of interest to you:
Vertical Pod Autoscaling