Configuring the requests per second (RPS) target¶

This setting specifies a target for requests-per-second per replica of an application. Your revision must also be configured to use the rps metric annotation.

Global key: requests-per-second-target-default
Per-revision annotation key: autoscaling.knative.dev/target
Possible values: Number at least 0.01, encoded as a string, for both the global key and target annotation.
Default: "200" for the global key. The annotation is unset by default. KPA applies target utilization after selecting the RPS target; containerConcurrency does not cap an RPS target.

See the v1.24 configuration parser, annotation validation, and target resolution for these constraints and interactions.

Example:

Per RevisionGlobal (ConfigMap)Global (Operator)

apiVersion: serving.knative.dev/v1
kind: Service
metadata:
  name: helloworld-go
  namespace: default
spec:
  template:
    metadata:
      annotations:
        autoscaling.knative.dev/target: "150"
        autoscaling.knative.dev/metric: "rps"
    spec:
      containers:
        - image: ghcr.io/knative/helloworld-go:latest

apiVersion: v1
kind: ConfigMap
metadata:
 name: config-autoscaler
 namespace: knative-serving
data:
 requests-per-second-target-default: "150"

apiVersion: operator.knative.dev/v1beta1
kind: KnativeServing
metadata:
  name: knative-serving
spec:
  config:
    autoscaler:
      requests-per-second-target-default: "150"