> -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:[email protected]] On Behalf Of Bob Shannon > Sent: Wednesday, December 02, 2009 10:25 AM > To: [email protected] > Subject: Re: question on STORAGE function - TCB may become > non-dispatchable? > > As far as I know, Storage just uses a different mechanism > (PC) to invoke the same code that Getmain/Freemain uses. > Since the PC runs under the TCB that invokes it, I don't > understand why anyone thinks there will be a wait of any > type. Since Storage doesn't suffer an SVC interrupt, it's > probably better for the CICS transaction than Getmain/Freemain. > > Bob Shannon > Rocket Software
I think the "problem" is my orientation of being a z/OS type programmer rather than a CICS programmer. "wait" in my mind implies making the TCB non-dispatchable by the z/OS dispatcher. "wait" to a CICS person may mean something like "cause other tasks to not be dispatched because an EXEC CICS type function is not done in a timely manner". This latter can cause an AICA, but could make the users consider the system to be "down" due to poor response time. I.e. other CICS tasks are waiting to be dispatched due to the CPU greed of the currently dispatched CICS task. -- John McKown Systems Engineer IV IT Administrative Services Group HealthMarkets(r) 9151 Boulevard 26 * N. Richland Hills * TX 76010 (817) 255-3225 phone * (817)-961-6183 cell [email protected] * www.HealthMarkets.com Confidentiality Notice: This e-mail message may contain confidential or proprietary information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. HealthMarkets(r) is the brand name for products underwritten and issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance Company(r), Mid-West National Life Insurance Company of TennesseeSM and The MEGA Life and Health Insurance Company.SM ---------------------------------------------------------------------- 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

