The e2e tests contain dedicated scale tests (e.g. AutoScaling) that can only be run on a dedicated cluster with appropriate hardware resources. At the moment, all tests on s390x are run on a KinD cluster with the biggest underlying hardware configuration being 16 IFLs and 128 GB RAM which seems not to be sufficient.
The e2e tests contain dedicated scale tests (e.g. AutoScaling) that can only be run on a dedicated cluster with appropriate hardware resources. At the moment, all tests on s390x are run on a KinD cluster with the biggest underlying hardware configuration being 16 IFLs and 128 GB RAM which seems not to be sufficient.
Due to this and the following code: https://github.com/knative/serving/blob/58cce5440428e7e1671106ba0951538e378dc890/test/e2e/autoscale_test.go#L102 the e2e tests will be run in 'short' mode only, effectively disabling the scale tests.