The IBM z/VM Operating System <IBMVM@LISTSERV.UARK.EDU> wrote on 08/06/2008 03:40:56 PM:
> On Wed, Aug 6, 2008 at 11:48 PM, Bill Holder <[EMAIL PROTECTED]> wrote: > > > Just to emphasize the point - the fact that most of CP's storage is now > > mapped into virtual(the System Execution Space) is really irrelevant to the > > question of detaching memory. Although that mapping is indeed the"default" > > I did not mean to make it sound easy. Being able to page it would be a > much harder one that being able to move it. At least we don't need to > walk all control blocks for pointers to the blocks in the page that we > moved. But you still need everyone out of the way when you move it > (unless that is an atomic operation). > -Rob An alternative - which might even satisfy Mr. Schuh - could be to restrict "detachable" memory to that which has been dynamically added after CP was iplled. I wouldn't think the SXS would extend into such, which would make it easier to clear. Of course it's been a while since I did much perusing of CP internals... --Mike
