IBM AIX Dynamic System Optimizer

The IBM® AIX® Dynamic System Optimizer (DSO) extends the features provided by the Active System Optimizer (ASO) to automatically adjust some system settings to maximize the efficiency of your system. This automates the difficult job of manually tuning those system settings to optimize eligible workloads. The additional features provided by DSO are large page optimization and data stream prefetch optimization.

In AIX Version 7.2.0, or later, both the Active System Optimizer (ASO) and the Dynamic System Optimizer (DSO) are included with the AIX operating system. DSO extends the function of ASO with additional optimization capabilities.

Starting with IBM AIX 7.2 with Technology Level 3, or later, ASO and DSO are supported on systems that are based on POWER9™ processors.