<p>Kubernetes have a feature named <strong>extended resource</strong>. but I do not know the effects of what it brings.</p>

<p>In other words, what are <strong>the differences</strong> between I use it and I no use it?</p>

<p>Besides, Is the feature similar to <strong>the default limit</strong> or <strong>default request</strong>?</p>

<p>Extended resources are custom resources your nodes can <a href="https://kubernetes.io/docs/tasks/administer-cluster/extended-resource-node/" rel="nofollow noreferrer">advertise</a> to the cluster, to make sure pods scheduled on them are able to have enough of them when scheduling.<br>
The <a href="https://kubernetes.io/docs/tasks/administer-cluster/manage-resources/memory-default-namespace/#create-a-limitrange-and-a-pod" rel="nofollow noreferrer">default limit/request</a> allows you to assign these resources implicitly, even if the pod spec did not explicitly specify them.</p>
