But you cannot guarantee it’s going to take half of my RAM size at most. In practice I’m going to see either hibernation failing at times, or maybe my system be

But you cannot guarantee it’s going to take half of my RAM size at most. In practice I’m going to see either hibernation failing at times, or maybe my system being hosed at times, because the hibernation image would exceed the expected fraction of RAM size. Besides, 32 GiB of disk space is nothing to sneeze at as well. I don’t quite trust using dynamically-created swap files as hibernation images, alas.