Ed, do you do some kind of simple "cost to start up vs saving" swag when 
deciding whether to do this?

Cheers, Martin

Martin Packer,
zChampion, Principal Systems Investigator,
Worldwide Banking Center of Excellence, IBM

+44-7802-245-584

email: [email protected]

Twitter / Facebook IDs: MartinPacker
Blog: 
https://www.ibm.com/developerworks/mydeveloperworks/blogs/MartinPacker



From:   Ed Jaffe <[email protected]>
To:     [email protected]
Date:   31/10/2013 05:33
Subject:        Re: zIIP simulation
Sent by:        IBM Mainframe Discussion List <[email protected]>



On 10/30/2013 6:55 PM, Al Sherkow wrote:
> Yes, I too have heard of one vendor that checks to see if a zIIP is 
available and if not does not setup for the zIIP. So for this vendor and 
their software that would use a zIIP they are not included in the eligible 
time and hence not in any analysis of the eligible time.

If that vendor is not Phoenix Software, then there are at least two that 
do this... TCBs when no zIIPs are present and Enclave SRBs when at least 
one zIIP is present.

However, we are adding some new highly-parallel, SRB-mode-only 
algorithms to the parts of our code that are the highest CPU consumers 
that might cause us to reconsider this bifurcation.

-- 
Edward E Jaffe
Phoenix Software International, Inc
831 Parkview Drive North
El Segundo, CA 90245
http://www.phoenixsoftware.com/

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