Mastering Windows PowerShell Scripting - Third Edition

Using the RunspacePool object

RunspacePool can be used to overcome the problem of overwhelming a system. The pool can be configured with a minimum and maximum number of threads to execute at any point in time.

The RunspacePool object is created using the RunspaceFactory type, as follows:

[RunspaceFactory]::CreateRunspacePool(1, 5)

RunspacePool must be opened before it can be used. The same pool is set for each of the PowerShell instances that expects to use the pool:

$runspacePool = [RunspaceFactory]::CreateRunspacePool(1, 2)$runspacePool.Open()$jobs = 1..10 | ForEach-Object {    $instance = [PowerShell]::Create().AddScript('Start-Sleep -Seconds 10')    $instance.RunspacePool = $runspacePool    [PSCustomObject]@{        Id          = $instance.InstanceId Instance ...