#Powershell filewatcher how to
#Powershell filewatcher code

You’re going to learn how PowerShell multithreading works hands-on in this article. Prerequisites for PowerShell Multithreading At a certain point that original thread will be maxed out just keeping all of the other threads in line. With multiple threads, the original thread used to run your console will be used to manage the other threads.

#Powershell filewatcher code

Using a single thread, PowerShell needs to run the code and it’s done. The act of spinning up and tearing down items in code, will take some time. Note that you will not see perfect scaling. Now instead of taking about 50 minutes, you are down to under a minute! Instead of using one thread for 1000 commands, you could instead use 100 threads each running ten commands each.

To create all 1000 users, it would take just under an hour.

Perhaps it takes three seconds to create a new user. Without multithreading, you would run the New-ADUser command 1000 times to create all of the users. This all changes when you want to create 1000 new users. When multithreading, many actions are being performed at once thus requiring more system resources.įor example, what if you wanted to create one new user in Active Directory? In this example, there isn’t anything to multithread because only one command is being run. This time decrease is at the tradeoff a higher processing power requirement. The primary benefit of multithreading is to decrease the runtime of the code. Where PowerShell normally uses a single thread, there are many ways to use more than one to parallelize your code. Multithreading is a way to run more than one command at a time. Comparing Runspaces and Runspace Pools for Speed.Prerequisites for PowerShell Multithreading.Understanding PowerShell Multithreading.

#Powershell filewatcher how to

In this article, you’re going to learn how to understand and use various PowerShell multithreading techniques to process multiple data streams at the same time but managed through the same console. But what if the actions it’s performing aren’t dependent on one another and you have the CPU resources to spare? In that case, it’s time to start thinking about multithreading. This is nice as it keeps everything repeatable and does not use many resources. It runs one command and when it finishes, it moves to the next command. The default PowerShell session is single-threaded.

Let’s get into how to solve this using PowerShell multithreading! These are both great examples of where using more processing power would get your code to run faster. This could be collecting data from lots of computers on your network or perhaps creating a ton of new users in Active Directory at once. At some point, most people will run into a problem that a basic PowerShell script is just too slow to solve.