Hi! > > > > Think in terms of an ARM laptop. What good is opportunistic suspend if > > > > it's not going to help when the laptop is being used? > > > > > > For when the laptop is not being used, presumably. > > > > Or in time between keystrokes for most of the platform (backlight > > excepted). The Intel MID x86 devices are at the point that suspend/resume > > time on x86 is being hurt by the kernel rewriting smp alternatives as we > > go from 2 processors live to 1 and back. > > Given that you are talking about going from 2 processors to 1 and back, > I would guess that you are not actually talking about suspend/resume, > which is a system-wide thing rather than a CPU-by-CPU thing. I am not > sure whether you are using CPU hotplug or invoking SMP alternatives once > all but one CPU is idle. When entering system suspend, we disable non-boot-CPUs to simplify locking. We reenable them when going out of suspend. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
