I work on a cluster shared with ~20 users, many of them operating remotely. It's quite common to open the login node, type users and see ~100 users listed, mostly the same user logged in multiple times. The cpu use from all these logins is negligible, as is the memory use, but somehow it just seems wrong. The login node is also often rather sluggish, so while it's difficult to dissociate this from network latency I wonder if it's related.Will these logins somehow slow down interactive sessions on the remote machine in ways that won't show up when I run top (i.e. even if they aren't consuming much memory / cpu)?
Will having dozens of inactive logins hurt performance
linux;users;cluster