Weird Power Manager problems

[jlittle]

.. maybe only reason - to have swap is to sleep or hibernate.

A few years ago there was a recommendation to make the swap size the square root of RAM size, rounded up, maybe to a power of 2. I haven't been able to find where that formula came from other than "experience". These days I make it equal to my RAM size, just in case I want to hibernate. (That's rare, but if I want to keep what I'm doing without saving, and the cleaners are coming... they often unplug randomly, so my usual suspend is not good.)

A post in an Ubuntu forum suggested that having a small swap might speed up booting, because the OS might waste time looking for swap, spinning up sundry drives. That sounds like it wouldn't apply to systemd.

Regards, John Little