Processor affinity
The database server supports automatic binding of CPU virtual processors to processors on multiprocessor computers that support processor affinity.
Your database server distribution includes a machine notes file that contains information about whether your database server version supports this feature. When you assign a CPU virtual processor to a specific CPU, the virtual processor runs only on that CPU, but other processes also can run on that CPU.
Use the VPCLASS configuration parameter with the aff option to implement processor affinity on multiprocessor computers that support it.
The following figure
illustrates the concept of processor affinity.
UNIX only: To see if processor
affinity is supported on your UNIX platform,
see the machine notes file.