Classification: HCL Internal

The max possible velocity is (theoretically) 100. I.E. there are zero delays in 
the sample.
The only thing I have ever seen that realistically exceeded 50 was a CICS 
address space running in server mode (as opposed to transaction mode).

Check your RMF III reports (or RMFPP if you prefer) during  period of "good" 
performance and find the achieved velocity.
Add about 10 percent and you should get a WLM vote to add resources to that 
service class.
20 percent should almost be a guarantee.

HTH,

-----Original Message-----
From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
Gibney, Dave
Sent: Tuesday, October 13, 2020 4:28 PM
To: [email protected]
Subject: Max possible velocity?

[CAUTION: This Email is from outside the Organization. Unless you trust the 
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It has been quite some time since I had to worry about my WLM policy. We've had 
ample capacity since 2007. Now, as We begin to wind down, we have reduced our 
contracted MSU capacity.
We dropped from 15 to 12 on an 5 way z13S-N05. My WLM policy, last seriously 
adjusted in 2007 when we moved to a z9-L03 has velocities ranging from a high 
of 90 (Adabas, Imp 1)   down to 5 (BATCH Imp 5)
We are experiencing just a minor amount of performance pain. It strikes me that 
perhaps some of my higher velocity goals (90, 70, 60, 50) may be unattainable 
under the now reduced capacity.

What is the high end for possible, single threaded (Adabas) velocity here? Or, 
where should I be reading in current manuals. I was better at this 15 years ago.

Dave Gibney
Information Technology Services
Washington State University


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