These attributes define the number of Arbortext PE サブプロセス running in a pool. The minSubprocesses attribute sets the minimum number of Arbortext PE サブプロセス that will be started and continue to run. The maxSubprocesses attribute sets the maximum number of Arbortext PE サブプロセス that can run in a pool when conditions controlled by other configuration settings are met.

When an Arbortext PE サブプロセス pool initializes, it starts Arbortext PE サブプロセス until the minimum number have been started. If a pool terminates an Arbortext PE サブプロセス and causes the number running to drop below the minimum number configured (refer to The maxIdleInterval Attribute and The maxLifetime Attribute’ for information on configuring terminations), the pool will immediately start a new Arbortext PE サブプロセス.

The maximum number of Arbortext PE サブプロセス must be greater than the minimum number to start additional Arbortext PE サブプロセス if needed to satisfy requests. The pool can't exceed the maximum number of Arbortext PE サブプロセス, which counts both allocated and idle Arbortext PE サブプロセス in the pool.

The default value for both minSubprocesses and maxSubprocesses is 1. Specifying a value less than zero or setting maxSubprocesses less than minSubprocesses is an error.

Ordinarily, set the minimum and maximum numbers of Arbortext PE サブプロセス to the same value to optimize performance. An extra Arbortext PE サブプロセス consumes a certain amount of memory, but even if it is seldom or never asked to service a request, it's a small penalty. If you specify starting a small number of Arbortext PE サブプロセス and allocate more as needed, consider the overhead associated with startup and initialization that can delay fulfilling a request.