Storage protection in other OSes: On Mon, 30 Jul 2012 22:09:07 -0600, Steve Comstock wrote: >>> >> Sigh. I keep forgetting (wishful thinking?) what a primitive OS z/OS is; >> that it provides no simple way a program can protect its storage from >> meddling by others. z/OS still thinks it's running on a s/360. > >I never saw an answer from you regarding my question for some examples >of how other non-primitive OS's provide a "simple way a program can >protect its storage from meddling by others" > We're both familiar with UNIX, which classically runs each process in a separate address space. How much simpler or more effective could it be? Likewise z/VM.
z/OS UNIX (USS) has compromised that classic UNIX model for reasons of performance, running multiple processes in shared address spaces. But I suspect (with no evidence whatever) that Linux for z can run a number of processes in private address spaces with better performance than USS can run the same processes in shared address spaces. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
