Re: Hibernation considerations

On Tuesday, 17 July 2007 22:39, Jeremy Maitin-Shepard wrote:

david@lang.hm writes:

[snip]

quoted

the non-ACPI hibernate behaves very differently, and for some people (and I
think I am one of them) it will meet their needs better then _any_ of the ACPI
suspends.

It may have certain differences from the user point of view, but from
the implementation view, it seems that it is nearly exactly the same.
The only differences seem to be: 

 - rather than shutting down, do whatever is necessary to stick the
   system in S4 state.

 - make sure ACPI isn't initialized by the "load image" kernel

 - rather than "resume from hibernate" ACPI by initializing it normally,
   issue the special hibernate-related methods.

Thus, it seems that supporting ACPI S4 will have a very minimal affect
on the hibernate implementation.

Still, you need to take it into account.

Greetings,
Rafael


-- 
"Premature optimization is the root of all evil." - Donald Knuth