As you'll see from my slides you really wouldn't want to delay the Prefetch and Deferred Write engines in any DB2 you care about.
That's one example, perhaps the main one. Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://www.ibm.com/developerworks/mydeveloperworks/blogs/MartinPacker Podcast Series (With Marna Walle): https://developer.ibm.com/tv/mpt/ or https://itunes.apple.com/gb/podcast/mainframe-performance-topics/id1127943573?mt=2 Youtube channel: https://www.youtube.com/channel/UCu_65HaYgksbF6Q8SQ4oOvA From: Peter Hunkeler <p...@gmx.ch> To: IBM-MAIN@LISTSERV.UA.EDU Date: 07/06/2018 17:14 Subject: AW: Re: Why are highly busy zIIPs worse than highly busy CPs? Sent by: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> >Once the delay is long enough, the CP does the work. They cost about 10X the price of zIIPs. I understand the potential impact on the software bill zIIP-on-CP might have. That is not the point I want to get a better understanding. I'm interested in the technical aspects, only. IMHO, from a technical point of view the invention of zIIPs and zAAPs is pure bullshit. From a financial point of view they are helping lowering costs -- and that is their only reason to be. I predict (and no I don't have any insight into IBM's plans) zIIPs will be gone in the not so distant future. Container Pricing makes the zIIP/zAAP concept superfluous. -- Peter Hunkeler ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
