Managing Engines

To achieve optimum performance from an SMP system, you must maintain the correct number of engines.

An engine represents a certain amount of CPU power. It is a configurable resource like memory.

Note: SAP ASE uses a load-balancing algorithm to evenly distribute the load among the engines. In process mode, if your server connections use Component Integration Services (CIS), they are affinitied to a single engine, and cannot migrate from one engine to another. This limitation does not apply to threaded mode.

Configuring Engines in Process Mode
When you first install SAP ASE, the system is configured for a single engine. To use multiple engines, reset the number of engines the first time you restart the server. You may also want to reset the number of engines at other times.
Configuring Engines in Threaded Mode
Edit the thread pool information in the configuration file to administer thread pools, or use create thread pool, alter thread pool, and drop thread pool .
Choosing the Right Number of Engines
It is important that you choose the correct number of engines for SAP ASE.

Parent topic: Configuring an SMP Environment