>>> On 9/17/2010 at 09:24 AM, George Henke/NYLIC <[email protected]> wrote: > Does z/VM, unlike z/OS, still need to do a lot of paging? > > In the z/OS world paging has become virtually(no pun intended :-)) > non-existent.
z/VM does very little paging (if not zero) on behalf of itself. Because z/VM allows considerable overcommit of storage among the various guests, it can wind up doing a _lot_ of paging to manage all that. If you ever started using z/OS as a hypervisor, it would have the same problem, unless you strictly limited the amount of virtual storage each guest had to add up to less than the available real storage. Mark Post
