iPerformance ApS is dedicated to one activity: Assisting our customers' operations and development departments with improving performance of applications running on the IBM i Power Systems (incl. AS/400, iSeries, and System i).

We developed GiAPA, which we believe is the first and only software product created with the sole purpose of locating and diagnosing performance inefficiencies in jobs running under IBM i, formerly i5/OS or OS/400.

The founder of iPerformance has over 35 years of experience within computing. He worked with the IBM i since it was called System/38.

He taught more than 200 courses on OS/400 performance for IBM in 21 countries. He was a speaker at COMMON conferences in Europe and in the United States.

He assisted companies in 11 countries with speeding up their applications, and has so far never failed to find the reason(s) for performance problems for applications running under OS/400.

He is the author of the software product GiAPA, in which he included as much as possible of all this experience of pinpointing performance problems of applications.