Evangelizing Mainframe

Getting Into Coding: One Girl’s Perspective

I had always been interested in engineering and I wanted to learn how to code. However, I didn’t want to come into the school year having no knowledge about coding.

Posted: 9/1/2015 12:00:30 AM by Julia Steffy | with 0 comments

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CHECK OUT OUR COMMUNITY CARICATURES
Our Destination z community boasts a variety of personalities, and we’re sharing a colorful look at some of our members. Find yourself or friends and associates by browsing through our commemorative caricature collection from SHARE Pittsburgh 2014, Enterprise2013, SHARE Anaheim 2014 and SHARE Seattle 2015.


Member Spotlight

Larry Lawler LARRY LAWLER
CTO

Company—

Unicom Global

Years in IT—

40 years

My first mainframe job—

PL/I programmer and  CICS SysProg at Manitowoc Engineering, in Manitowoc, Wisconsin

My favorite mainframe memory—
My favorite memory was working with IBM’s Plan Code product and trying to figure out why it consumed so much CICS resources.

After sitting with the assembler listing for DFHFCP, I discovered “locate” mode with a following “release” was being converted into VSAM ENDREQ macros VSAM ENDREQ macros flush data and Index buffers, as part of releasing ownership of the PLH or String.

So we found the IBM-supplied optional source code in a DR vault, and patched two lines of code to use “move mode” instead of “locate mode” DFHFC requests.

Next we called the user and asked the user to test it for us, to see if there were any improvements. While still on the phone the user said it must have failed as it is done already. A couple minutes later, the user called back to say it worked perfectly in 2 minutes, instead of the normal 4.5 hours. At that point I was hooked on CICS and VSAM tuning.

See more Member Spotlights.

Blogs

A dynamic sampling from the Mainframe blogosphere.

Mainframe Update

by Trevor Eddolls

Mainframe World

by Trevor Eddolls

DB2utor

by Troy Coleman

Dancing Dinosaur

by Alan Radding

Mainframe Watch Belgium

by Marc Wambeke

The Punctilious Programmer

by David E. Woolbright

Mainframe Analytics

by Reg Harbeck

Drunken Data

by Jon Toigo

Jeff Jonas

by Jeff Jonas

Irving Wladawsky-Berger

by Irving Wladawsky-Berger

Mainframe Debate

by Steven Dickens

Tweets Around the Web

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