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MSU and MIPS Relation????

 
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Hardik Vachhani

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Joined: 11 Dec 2008
Posts: 13
Location: Phoenix, AZ, USA

PostPosted: Tue Aug 18, 2009 3:41 pm    Post subject: MSU and MIPS Relation????
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Hi,
Can anyone explain me the relation between MSU and MIPS???

As far as i have understood MSU is consumption per hour and MIPS is the CP Capacity, so how can we relate MSU to MIPS.

As per IBM website it provides the MSU/MIPS ratio for all zSeries and older Machines.

Service Unit can be related to MSU as they both fall under same category.

For E.G.> A job consumes 10000 SU/CPU Sec, this can be converted to the MSU Utilized, but can we say how many MIPS are consumed??

So can anyone explain me the relation between MSU and MIPS.
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Robert Sample

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Joined: 06 Jun 2008
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Location: East Dubuque, Illinois, USA

PostPosted: Tue Aug 18, 2009 4:47 pm    Post subject:
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The relationship between MSU and MIPS is determined by IBM. The ratio varies by machine as well as number of engines on the machine -- there is no one single value, not even for a given machine.

Quote:
but can we say how many MIPS are consumed??
The answer to your question is ZERO. MIPS is not a measurement that can be applied to an individual job, as it has meaning only when talking about the entire processor -- disk drives, CPU, tape drives, channels, and everything else. Do not think a MIPS number has meaning for anything other than an entire machine -- and IBM doesn't even use MIPS numbers for their machines any more so why be using an obsolete concept?
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