>>> On 8/19/2009 at 6:36 PM, BOB COSBY <[email protected]> wrote: > Google is not very helpful. > > 1. What is the Mps to Ghz conversion for our mainframe - i.e. we have a > 2094-S08 505 processor for mainframe applications that has 1,721 MIPS.
Based on the work done by Velocity Software, a good starting point to use is 4MHz = 1 MIPS. Actual workload should be tested and measured to verify that, since it can vary, depending on the instruction mix. And of course, you need to factor in just how busy those Intel/AMD processors are, as in 2% busy for a 2GHz machine is 40MHz, or 10 MIPS. That doesn't take into account path lengths and the like, but you get the idea. Again, measuring actual workload in both environments is absolutely crucial to success. > 2. How many virtual Linux servers would a zO8 IFL support with a > Quad(4)/Quad(4)/2.4 Ghz configuration? That's going to depend entirely on the workload. It might be one, or it might be 500. There are a lot more factors to consider than just CPU, of course. Real Storage, I/O rates, network bandwidth. Whether z/VM will be used or not, so that more resource sharing can be done. Lots of other things to consider as well, but that should get you started. Mark Post ---------------------------------------------------------------------- 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
