Larry,
the conversion rate for Intel platforms to zSeries ranges from 3 MHz per
MIPS to 30 MHz per MIPS depending on how much data you are pushing through
the caches and out much serialization (context switches, locks, etc.).
This is typically lower for the web servers and higher for the backend.
Because zSeries capacity is almost always a mixed workload capacity the
utilization peak and utilization variation on an interval by interval basis
comes into play. This is because you have to configure each blade for its
peak, but you configure zSeries for the composite peak which is almost
always less or can be managed to be much less than the sum of the peaks.
Because some workloads tend to saturate blades at lower utilization than
zSeries the composite utilization peak is usually quite low.
Joe Temple
Executive Architect
Sr. Certified IT Specialist
[EMAIL PROTECTED]
845-435-6301 295/6301 cell 914-706-5211
Home office 845-338-1448 Home 845-338-8794
"Davis, Larry"
<[EMAIL PROTECTED]
ielsenMedia.com> To
Sent by: Linux on [email protected]
390 Port cc
<[EMAIL PROTECTED]
IST.EDU> Subject
CPU Comparison
03/18/2005 11:42
AM
Please respond to
Linux on 390 Port
I know that this has been asked in many different ways, but has anyone
actually put together a comparison chart or list of CPU speeds for
zSeries, I32, I64, and other processors.
I have a department that wants to have a group of dedicated Blades
assigned to specific clients. We want to show a cost to Performance
ratio for purchasing blades and scaling a zSeries system.
The application uses Java, in the backend to run the queries and
retrieve the data, and Web servers to interface to a client and present
the results.
Larry Davis,
Senior Systems Engineer
Nielsen Media Research
813-366-2380
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