Shmuel Metz (Seymour J.) wrote: >Yes, if every CP is dedicated. But isn't there a third MP effect when you >share a processor across LPAR's?
Yes, there is a 3th MP effect for such sharing. When workload is heavy, this is unavoidable. Think about giving icecreams to kiddies. No problem if you have 1 kid. Scratching heads when you have more kids. Who do you give what? More headscratching and time wasting if these delicasies are different. To who are you giving vanilla and to who the choc one? Of course, the kids can't decide, YOU decide. They cannot wait, while you are having MP effect to decide. Now if you want both or more kids to lick ONE icecream, well... they can take turns, but this is going to be difficult... ;-D More trouble if you decide to eat them (IPL the LPAR with the most CPU while others have to do with the few CPUs) before them (crying) kids! ;-D Above is just a sample description of MP effect as explained to me by a helpful IBMer about 20 years ago. Groete / Greetings Elardus Engelbrecht ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
