Contact Info

One Campus Martius

Phone: 1-800-COMPUWARE

Web: compuware.com

About Bob Yee

Bob Yee started at Compuware in 1981 and has worked in development management, support and maintenance management, new product development, beta management, product management and third-party technical relationship management, to name a few. Bob started and has managed Compuware's technical relationship with IBM for over 25 years. He currently is a technical consultant at Compuware and has been heavily involved with mainframe modernization projects across the product lines.

SHARE Academic Award for Excellence – Why Award Competitions are Vital for Our Industry

By | August 8th, 2012|App Performance|

I recently had the honor of serving on the SHARE Academic Award Committee. The SHARE Academic Award for Excellence, sponsored by Compuware and IBM, recognizes and honors the academic work that advances enterprise computing worldwide. Compuware wishes to extend a warm “Congratulations!” to this year’s three very deserving recipients: Grand [...]

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Using IBM’s zAAP Engines to Optimize Java Performance

By | March 20th, 2012|Agile Development, App Performance, Featured|

Recently, we discovered a Java program in a loop on our z10-BC R03.  The program had used over 100,000 CPU zAAP seconds (more than a CPU day), which yields almost ¼ million normalized CPU seconds.  Yet, there wasn’t an indication of any performance or response time problems reported from any [...]

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Mainframe Hardware – Oh How It’s Changed!

By | February 23rd, 2012|Featured|

  Here is a very good perspective view of the height of the cooling towers and the back of the PC board, loaded with a dense cross hatch of twin lead wires, with a spider web type of look. The patented technology used in these chip cooling towers allowed Amdahl to deliver hardware [...]

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IBM zAAP Engines – Are They Worth It?

By | January 17th, 2012|Featured|

We receive many questions about the IBM zAAP Java specialty engines. Among the most frequent questions asked is, “do we really need them?” The simple answer is -- if you have committed to Java applications and want them to perform like non-Java applications on your mainframe, then YES! Let me provide [...]

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Limits in the Mainframe Universe — What’s Your Plan for 2042?

By | January 3rd, 2012|Featured|

Unless there’s been a recent high impact application problem that involves limits, consideration and design for limits are usually afterthoughts. In fact, odds are that a frequent after-the-fact answer to any question on limits would be “there are none.” Of course, there’s a limit to most everything! Careful analysis during [...]

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What’s Your Limit in the Mainframe Universe? – Part 2

By | November 28th, 2011|Featured|

There are many well known limits for mainframe software. In this post, we’ll start by taking a look at the z/OS system and related software, and discuss some of these limits and how they have affected the workplace throughout the years. For IBM S/360, the most common and popular limit [...]

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What’s Your Limit in the Mainframe Universe?

By | November 15th, 2011|Featured|

Have you ever been asked, “What’s your limit?” Well, for IBM mainframes, there are lots of limits! Do you have one in mind? Do you know what your limits are? Limits are more easily understood if we classify or clarify the usage of “limit.” Some limits are, for example: architectural, practical, theoretical, [...]

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