On Mon, 16 Dec 2013 00:37:37 -0600, Russ Teubner wrote: >I must add that this "break-even" assessment is a moving target because zOS >processor switching overhead seems to be trending down (and our own code paths >are getting shorter). Note also that the model of the System z hardware makes >a big difference. If the GPs are knee-capped relative to the zIIPs, the GP >savings and potential improvement in throughput are staggering in some cases.
Let's hope this proves to be true. Recently we had a discussion here about the reliability of the zIIP projection stats from RMF. Using them (alone) might make the justification of zIIP resources difficult - especially in small (read knee-capped) shops. I have no doubt about throughput improvements - I do have some doubts about the GP savings being of sufficient significance as to lead to a purchase. Shane ... ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
