> What is the overhead? After setup, very little
> Is anything going on "under the covers" beyond the normal ALESERV > and access register manipulations? IIRC it doesn't use ALESERVE or access registers. It's all done by RSM. Basically IBM turned a bug, multiple pages backed by the same frame, into a feature. Very cleaver. > Would you say that the feature is primarily for the use > of application programs, or does it have a place in > the system programmer's toolkit? It's clearly intended for "application" use, however, the application isn't going to be your typical COBOL program. System programmers ought to understand how it works as USS is a heavy user. It's easy to code up a sample application. Bob Shannon ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
