time oc delete pod glance-default-single-0 --grace-period=48
pod "glance-default-single-0" deleted

real    0m49.941s
user    0m0.224s
sys     0m0.054s

more details in the https://issues.redhat.com/browse/OSPRH-770 , which is closed.

The impact of this issue is seen in TLS-e deployments, where the glance Pod is terminated and restarted, and it requires a lot of time to converge into a Running state.