CPU allocation

This page describes how to specify the number of CPUs to allocate for each Cloud Run container instance. By default Cloud Run container instances are allocated 1 CPU instance. You can change this number.

Setting and updating CPU allocation

Any configuration change leads to the creation of a new revision. Subsequent revisions will also automatically get this configuration setting unless you make explicit updates to change it.

By default, 1 CPU is allocated for each container instance. You can set CPU allocation using the Cloud Console, the gcloud command line, or a YAML file when you create a new service or deploy a new revision:

Console

Go to Cloud Run
Click Create Service if you are configuring a new service you are deploying to. If you are configuring an existing service, click on the service, then click Edit and Deploy New Revision.
Under Advanced Settings, click Container.
Select the desired CPU allocation from the dropdown list. Select a value of 1, 2, or 4 vCPUs. (Note that using 4 vCPUs requires you to use a minimum of 2 GiB memory.).
Click Create or Deploy.

Command line

You can update the memory allocation of a given service by using the following command:

gcloud run services update SERVICE --cpu CPU

Replace SERVICE with the name of your service and CPU with the desired CPU allocation. Specify the value 1, 2, or 4 vCPUs. (Note that using 4 vCPUs requires you to use a minimum of 2 GiB memory.).

You can also set CPU allocation during deployment using the command:

gcloud run deploy --image IMAGE_URL --cpu CPU

Replace

IMAGE_URL with a reference to the container image, for example, gcr.io/myproject/my-image:latest.
CPU with the values described above.

YAML

You can download and view existing service configuration using the gcloud run services describe --format export command, which yields cleaned results in YAML format. You can then modify the fields described below and upload the modified YAML using the gcloud beta run services replace command. Make sure you only modify fields as documented.

To view and download the configuration:

gcloud run services describe SERVICE --format export > service.yaml

Update the cpu attribute:
```
apiVersion: serving.knative.dev/v1
kind: Service
metadata:
  name: SERVICE
spec:
  template:
    spec:
      containers:
      - image: IMAGE
        resources:
          limits:
            cpu: CPU
```
Replace
- SERVICE with the name of your Cloud Run service
- IMAGE with the URL of your container image.
- CPU with the desired CPU value. Specify the value 1, 2, or 4 vCPUs. (Note that using 4 vCPUs requires you to use a minimum of 2 GiB memory.).
Replace the service with its new configuration using the following command:
```
gcloud beta run services replace service.yaml
```