Find Hot Spots Using Program Profiling

Here’s another tip for improving the performance of your ILE applications. In the blog post Improve Performance with Argument Optimization, I explained when argument optimization may speed up your programs and service programs. Today, I’d like to talk about another technique you may not be familiar with: program profiling. As with argument optimization, a full description of program profiling can be found in chapter 13 of IBM i ILE Concepts (SC41-5606).  For simplicity, I’ll just call it “profiling” in the rest of this post.