Powershell Runspaces

Chrissy LeMaire has a pair of posts on runspaces.  First, a post which includes a runspace template:

Runspaces can be intimidating. I had heard about them, took a look at the code and was like “Ah, that looks complex. I’ll learn that later.” Because of this, I repeatedly went over the bulk insert code to familiarize the audience with the functionality that I was eventually going to multi-thread.

Then she shows us how to output results without waiting for all runspaces to complete:

Recently, I had a request to add multi-threading to Read-DbaBackupHeader. This was the first runspace in which I had to output the results from the runspace to the host — usually I just needed commands to run in the background, like with bulk-inserts to SQL Server.

Runspaces seems to be a good option in Powershell for multithreading.

Related Posts

Powershell Dot-Sourcing

Shane O’Neill takes us through some of the intricacies of dot-sourcing in Powershell: The dot used to represent the location is, as I’ve said before, for the current location. Our ConvertTo-Message02 script changed it’s location as part of the script. When we used the “dot source dot location” method, we weren’t using where our function is as a […]

Read More

Finding Parameter Aliases in Powershell

Mike Robbins has a quick script to find aliases for parameters in Powershell cmdlets: While sitting through Jeff Hicks‘ Advanced PowerShell Scripting Workshop at PowerShell on the River in Chattanooga today, he mentioned there being a “Cn” alias for the ComputerName parameter of commands in PowerShell. I’ve previously written a one-liner to find parameter aliases and at one time Microsoft had starting […]

Read More

Categories

December 2016
MTWTFSS
« Nov Jan »
 1234
567891011
12131415161718
19202122232425
262728293031