On Mon, 14 Feb 2011 16:19:23 -0600, Chris Craddock wrote: Thanks. That clarifies it considerably.
>Indeed > >> Date: Mon, 14 Feb 2011 15:19:06 +0000 >> From: [email protected] >> Subject: Re: Is this a commonly used technique ? >> To: [email protected] >> >> Tom, >> >> I believe CC was referring to accessing data in another ASID *without* that ASID participating in a formal cross-memory link. >> >> A PC-ss is a formal cross-memory link between the two ASIDs and the server can easily reference caller storage using AR-Mode and the ALET value of 1. >> >> Rob Scott >> Lead Developer >> Rocket Software >> 275 Grove Street * Newton, MA 02466-2272 * USA >> Tel: +1.617.614.2305 >> Email: [email protected] >> Web: www.rocketsoftware.com >> >> >> -----Original Message----- >> From: IBM Mainframe Assembler List [mailto:[email protected]] On Behalf Of Tom Marchant >> Sent: 14 February 2011 15:08 >> To: [email protected] >> Subject: Re: Is this a commonly used technique ? >> >> On Sun, 13 Feb 2011 18:40:57 -0600, Chris Craddock wrote: >> >> >given that the service provider has provided a space-switch PC for >> >the client address space to call, what was the point of the SRB? >> >There's nothing wrong with it per se, but it just adds more moving >> >parts which on average is less optimal. >> >> I believe you had posted previously that the only legal way to access >> data in another address space is to schedule an SRB. I have been >> trying to understand why that is so. Is this different by virtue of >> running a space-switch PC and referencing the caller's address space? >> >> -- >> Tom Marchant >> Compuware >
