Performance Trace Data Visualizer (PTDV) for System i is a tool for processing, analyzing, and viewing Performance Explorer (PEX) Collection data residing in PEX database files.

How does it work?

PTDV can display CPU profile (tprof) data and trace data, including method entry and exit, Java™, and heap events. The data is displayed in table and tree views with summarized data at various levels of detail, depending on your path through the data. Tables consist of columns that are sortable and rearranageble; trees provide a "drill down" capability to show parent-child relationships for data where appropriate. Each pane of data can be exported to another format for viewing by other tools, such as spreadsheets. More detail can be displayed as the user determines performance problem areas.

Mike Denney is an advisory software engineer with the IBM Systems & Technology Group in Rochester, Minnesota. He holds a B.S. in computer science from Iowa State University in Ames, Iowa. Mr. Denney joined IBM in 1982 and currently works in the iSeries Core Technologies department. He has 19 years of experience in performance tools, modeling, and analysis. He also has four years of experience in operating system design and development. Mr. Denney can be reached through e-mail.

Jeremy Arnold is an advisory software engineer with the IBM Systems & Technology Group in Rochester, Minnesota. Mr. Arnold joined IBM in 1998 and works as part of the Systems Performance organization with a focus on Java performance for iSeries. He has a B.S. in computer science from Utah State University. Mr. Arnold can be reached through e-mail.