Crispin,

>From what you describe your z10 CPs will be kneecapped to 50% of your
current z9 CP speed. That means that any compute bound task that runs at
close to 100% of one CP is going to take twice as long to complete.

Ron


> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On
Behalf Of
> Crispin Hugo
> Sent: Friday, July 16, 2010 2:29 AM
> To: IBM-MAIN@bama.ua.edu
> Subject: [IBM-MAIN] 2 versus 4 processors
> 
> Hi,
> We are hopefully going from a z9 to z10 processor.
> I would like to have 4 CP's instead of our current 2 CP's so our
> configuration is more flexible. We are not worried about licensing costs
> of multiple processors. The overall MIPage would be the same, whether we
> have 2 or 4 CP's
> 
> Anybody see any gotcha's about doing this
> 
> Crispin Hugo
> Systems Programmer, Macro 4
> <http://www.macro4.com/>
> Macro 4 plc, The Orangery, Turners Hill Road, Worth, Crawley, RH10 4SS
> Direct Line: +44 (0)1293 872121 Switchboard: +44 (0) 1293 872000
> Fax: +44 (0) 1293 872001
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