Suspend (to disk) is valuable in itself, separate from sleep.
Everybody has preferences, but if I put a laptop in a bag, I want it suspended. Everything should be as it was when I left. Not doing whatever wakeups I might be happy with if it's sleeping on my desk.
Also immensely valuable for desktops on UPS. Run for a while, then suspend until power comes back. The UPS battery will not run for very many minutes, even if there is very little load.
> The UPS battery will not run for very many minutes, even if there is very little load.
I thought the conversion from 12V to 120V isn't all that inefficient?
The ratings provided by UPS vendors only specify the full load and half-load runtimes, yet the runtimes for quarter-load and lower, are actually quite decent, although sometimes hard to find officially.
I think the only problem with a very low load might be that the UPS might simply turn itself off if it thinks that it's actually unloaded (if the suspend-to-memory were to consume way too little power).
Well, the post I was responding to was asking for a week. And electric outages in my area tend to either be seconds or several hours to a day or two. I don't think my UPSes would stay up for an hour with a 2-5w load and almost certainly not for 4 hours. If the power is out, and my generator doesn't kick on, sleep isn't going to do it, suspend (or shutdown) is needed.
Everybody has preferences, but if I put a laptop in a bag, I want it suspended. Everything should be as it was when I left. Not doing whatever wakeups I might be happy with if it's sleeping on my desk.
Also immensely valuable for desktops on UPS. Run for a while, then suspend until power comes back. The UPS battery will not run for very many minutes, even if there is very little load.
I thought the conversion from 12V to 120V isn't all that inefficient?
The ratings provided by UPS vendors only specify the full load and half-load runtimes, yet the runtimes for quarter-load and lower, are actually quite decent, although sometimes hard to find officially.
I think the only problem with a very low load might be that the UPS might simply turn itself off if it thinks that it's actually unloaded (if the suspend-to-memory were to consume way too little power).