1. performance tuning service for
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performance tuning service for
IBM Mainframe
Antonio Jose Ferreira
© 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

2. Reducing operational costs through MIPS management
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Reducing operational costs through MIPS management
Information Technology plays an important role in many organizations
IT related operational costs are high and no wonder that businesses ought to strive for their reduction
For most banks, it was estimated that total operational IT costs oscillate at around 15% to 20% of total operational costs
Businesses have taken a strong stance on operational costs reduction and sought solutions to slash IT costs
For instance, Citigroup estimated that removal of redundant systems from their IT portfolio yields a savings potential of over 1 billion USD 
© 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

3. Reducing operational costs through MIPS management
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Reducing operational costs through MIPS management
So far, organizations have tried a number of approaches to cut IT costs which included head count reduction, outsourcing, consolidating data centers or replacing old software and hardware with its newer counterparties
All these approaches, however, carry an element or risk and might end-up costing a lot especially when complex software environments are involved
There exists one approach which enables IT costs reduction at low-risk for both business and IT
By enabling control of MIPS consumption not only it is possible to achieve significant savings but also to improve performance of IT-systems 
© 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

4. Reducing operational costs through MIPS management
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Reducing operational costs through MIPS management
MIPS have envolved to become a measurement of processing power and CPU consumption
MIPS related costs are inevitable and high for those organizations which have grown on top of mainframes
A former CIO of a corporation, once said: “MIPS and salaries are my highest unit cost per month”
The amount of MIPS used by the average IT organization is on the rise
IT analysts estimate that most large organizations utilizing mainframes should expect their systems’ MIPS consumption to increase by per cent annually 
© 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

5. Reducing operational costs through MIPS management
1/27/2018 3:16 PM
Reducing operational costs through MIPS management
Each additional MIPS typically costs around GBP 2,500 in hardware and software charges
So if a company running a 10,000 MIPS system increases capacity by as little as ten per cent per annum, the incremental cost will be in the region of GBP million
Despite the fact that the incurred MIPS related costs are substantial the majority of IT executives (60 %) do not monitor MIPS usage
Therefore, reducing MIPS is indispensable and is one of the major priorities of mainframe users, due mainly to a weak economy and high software costs on the platform 
© 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

6. Reducing operational costs through MIPS management
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Reducing operational costs through MIPS management
Where does the accrual of MIPS happen?
 MIPS consumption is directly driven by CPU usage,
and CPU usage depends on the applications’ code
 Inefficient code of the applications is considered
to be one major driver for MIPS usage
 According to a financial services company
identified two lines of code that, once changed,
saved MIPS
 Given the market price of MIPS, the two lines of
code contributed to substantial reduction of
operational IT costs 
© 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

7. z/OS WORLD performance services in a Ideal MIPS usage
Reducing MIPS growth is a top priority
Why pay more for inneficient code?
Ideal
MIPS
usage
The worldwide installed base of IBM mainframe exceeded
14 Million MIPS by end of up approximately 20 % from
year-end and roughly double of what was five years ago.
The need for controlling MIPS attributed costs is indispensable
given the high percentage they involve in the overall IT costs.

8. recommending a strategy
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recommending a strategy
Code
optimization
COBOL · SQL · JCL
Reduction MIPS
& I/O usage
BATCH
window reduction
© 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

9. recommending a strategy
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recommending a strategy
Our approach relies on the mainframe usage data, facts extracted from source code, and is supported by a real
MIPS-reduction project which involved tuning of
COBOL  SQL  JCL
Implementing standards-oriented programming performance that allows:
Increasing performance that results in MIPS reduction
More workload to be processed without adding additional resources
Allowing for growth
© 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

10. recommending a strategy
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recommending a strategy
Efficient COBOL Coding Techniques
Specific rules for performance, typically oriented to the code level, may lead to significant improvement in performance, and should be a good starting point.
More than rules are available to achieve a better performance.
JCL standards and efficient use
The bad choices in JCL programming, may have a very negative effect on system performance, specially in cases involving a very large amount of information.
Increasing ‘parallelism’ and an intensive use of IBM utilities.
SQL performance and tuning
The vast majority of the top MIPS consuming operations in the production environment involve the use of DB2. MIPS reduction at low-risk and also low-cost
by improving SQL code on the basis of mainframe usage.
More than rules and tips to improve DB2 performance.
© 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

11. SUCCESSFUL REAL CASE Sample Tuned Charts - 61,59 % - 64,44 % - 63,01 %
ODATE
OLD
NEW
REDUCTION
Day 1
3,28
1,26
- 61,59 %
Day 2
3,29
1,17
- 64,44 %
Day 3
3,46
1,28
- 63,01 %
Day 4
1,22
- 64,74 %

12. SUCCESSFUL REAL CASE Sample Tuned Charts - 56,28 % - 71,97 % - 64,17 %
ODATE
OLD
NEW
REDUCTION
Day 1
73,91
32,32
- 56,28 %
Day 2
73,99
20,74
- 71,97 %
Day 3
91,82
32,90
- 64,17 %
Day 4
82,22
20,77
- 74,74 %

13. Conclusion  Recommendation THE CHANCE TO ACHIEVE THE BEST PERFORMANCE
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Conclusion  Recommendation
THE CHANCE TO ACHIEVE THE BEST PERFORMANCE
Improving individual program performance
Improving the parameters of the data sets employed
Increasing parallelism (through several methods)
Splitting or merging programs
GOAL
Improve performance
Reduce CPU usage
Reduce costs
ideas for today and tomorrow
© 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.