There are a variety of things which can be done to improve PMDF's performance. However, before trying to tune PMDF you should first feel comfortable with PMDF: have a basic understanding of how it works, be familiar with your configuration, and be able to recognize when PMDF isn't working on your system. In addition, it is important that you spend some time identifying what the bottlenecks are on your system: CPU resources, disk speed, memory, network speed or latencies, etc. Without a clear idea of where the bottlenecks are, any tuning you do is likely to be ineffective.