As it is controlled by a CR bit, I thought that perhaps microcode was involved.
On Sun, 9 Jul 2017 21:08:21 +0200 Peter Hunkeler <[email protected]> wrote: :>Out of curiosity, why have you thought there might be one? :>-- :>Peter Hunkeler :> :> :> Von: Binyamin Dissen <[email protected]> An: [email protected] Betreff: Re: Z performancequestion #2 - key 9 Datum: 08.07.17, 20:37 :> :> :>Thank you. :> :>On Fri, 7 Jul 2017 13:28:51 -0400 Jim Mulder <[email protected]> wrote: :> :>:> There should be no performance cost. :>:> :>:>Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp. :>:>Poughkeepsie NY :>:> :>:>> Subject: Z performancequestion #2 - key 9 :>:>> Sent by: IBM Mainframe Discussion List <[email protected]> :>:>> :>:>> What is the performance cost of using key 9 storage when the PSW is not :>:>in key :>:>> 9? :> -- Binyamin Dissen <[email protected]> http://www.dissensoftware.com Director, Dissen Software, Bar & Grill - Israel Should you use the mailblocks package and expect a response from me, you should preauthorize the dissensoftware.com domain. I very rarely bother responding to challenge/response systems, especially those from irresponsible companies. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
