> >That depends on the definition, but I think of suspend states as the ones > >that require processes to be frozen before they can be entered. IMHO it is > >quite clear that such states cannot be handled in the same way as those > >that do not require the freezing of processes, so they are not the same. > > You are correct, processes do need to be frozen before a suspend. > That's the prepare to suspend part of the suspend process, and > the transtition is the suspending and finish is the un-freezing > of the processes to resume execution. > > And those same steps are the same steps required to transition the > system to a new operating point, whether it's suspend or change > from 1.4GHz to 600MHz. No, processes are not frozen for simple cpu frequency change -- on non-broken cpus. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
