Linus Torvalds writes: > The point being that in the guests, hotunplug is almost useless (for > bigger ranges), and we're much better off just telling the virtualization > hosts on a per-page level whether we care about a page or not, than to > worry about fragmentation.
We don't have that luxury on IBM System p machines, where the hypervisor manages memory in much larger units than a page. Typically the size of memory block that the hypervisor uses to manage memory is 16MB or more -- which makes sense from the point of view that if the hypervisor had to manage individual pages, it would end up adding a lot more overhead than it does. Paul. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
