Come on Mark, you made a blanket statement about zAAP's and performance and I disagreed. Now you're coming back with specifics which I'm not going to/can't argue. I'm just stating I've been in situations where I personally believe that a zAAP would have been benificial over a GP CP from a performance perspective. So can we call this a *it depends on the environment* at this point. Thanks for the links.
--- On Wed, 2/3/10, Mark Zelden <[email protected]> wrote: From: Mark Zelden <[email protected]> Subject: Re: IBM countersues Neon over zPrime accelerator To: [email protected] Date: Wednesday, February 3, 2010, 9:04 PM On Wed, 3 Feb 2010 12:30:21 -0800, Patrick Falcone <[email protected]> wrote: >That's fine, I don't agree. Thanks for checking for the documentation. You don't agree with what? That having 10 GPs has less overhead than 5 GPs and 5 zAAPs and can service the same workload just as well or better (since there will be less overhead)? > >I would have killed for a zAAP when we tried to go WAS V5 years ago. I would not have taken a GP either since the startup of the cell group dimmed the lights and having a GP, that was knee-capped, would have been a disadvantage over having a fully blown zAAP engine to support this workload. > I didn't mention the caveat of a knee-capped engine, but that isn't an apples to apples comparison. Of course you are better off with a full speed specialty engine compared to a knee-capped GP if you can utilize the specialty engine. >We had the estimation tool when it was a zap and the numbers came out in the log and showed the amount of java eligible work but I do not remember seeing switch rate information. > I still had this old link to the tool: http://www6.software.ibm.com/dl/zosjava2/zosjava2-p Which redirected me here: https://www14.software.ibm.com/webapp/iwm/web/preLogin.do?source=zosjava2 And also this techdoc that replaced WP100431: http://www-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/PRS2840 I thought it was the excel workbook in that techdoc that showed the switch rate. But I could be remembering slides I saw at a SHARE presentation. Mark -- Mark Zelden Sr. Software and Systems Architect - z/OS Team Lead Zurich North America / Farmers Insurance Group - ZFUS G-ITO mailto:[email protected] z/OS Systems Programming expert at http://expertanswercenter.techtarget.com/ Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html ---------------------------------------------------------------------- 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
