NUMCPUVPS

onconfig.std
value

1

units

Number of CPU VPs

range of values

1 through the number of CPUs

takes effect

When shared memory is initialized

refer to

CPU virtual processors in the chapter on virtual processors and threads in the IBM Informix: Administrator's Guide

NUMCPUVPS specifies the number of virtual processors of the CPU class to run. CPU virtual processors run all threads that start as the result of a connection by a client application, as well as internal threads. On a single-processor computer, allocate only one CPU virtual processor. On a multiprocessor computer, do not allocate more CPU virtual processors than there are CPUs on the computer.

On a single-processor computer or node, allocate only one CPU virtual processor. On a multiprocessor computer or node, do not allocate more CPU virtual processors than there are CPUs.

For information about using onmode -p, see Add or Remove Virtual Processors.

On UNIX, use the onmode -p -1 CPU command to decrease the number of CPU VPs. On Windows NT, you can add a CPU VP, but you cannot subtract it.