[oi-dev] [developer] State of suspend/hibernation

[Peter Tribble]

On Wed, Aug 20, 2025 at 4:30 AM Atiq Rahman <atiqcx at gmail.com> wrote:

> Hi,
> What's the state of suspend/hibernation on OI or consumer facing illumos
> based distros? Which one works best?
>
> Asking since we still seem to use swap partitions? Is there a plan to get
> rid of that in favor of an in-memory deep state of sleep?
>

I used to use suspend-resume on sparc (my kids had sparc boxes which
used suspend to disk). I *think* it saved the state in a file like /.cpr,
and
worked fairly well; I don't recall suspend to RAM being available on SPARC.

I did have suspend to RAM working on an intel box, but that was many years
ago. My current system says no, and I haven't had one working for a while:

# sys-suspend
suspend: Suspend is not supported.

although it boots from cold quickly enough that the few seconds I would
gain from
resume don't bother me that much.

-- 
-Peter Tribble
http://www.petertribble.co.uk/ - http://ptribble.blogspot.com/
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