Optimizing performance

To achieve the best performance, store the binary files of your application in the local stream file system.

It is much slower to start PASE for i programs if your binary files (such as base program and libraries) are outside of the local stream file system because file mapping cannot be done.

If you run an application in PASE for i that performs a large number of fork() operations, it will not run as fast as it runs on AIX®. This is because each PASE for i fork() operation starts a new IBM® i job, which can have a significant impact on performance.