PowerShell Parallel Processing Example

This script demonstrates the use of parallel processing in PowerShell 7 with ForEach-Object -Parallel, comparing its performance to sequential processing in PowerShell 5. By utilizing parallel processing, execution time can be significantly reduced, maximizing hardware resource usage on multicore systems.

Description

The script iterates over a list ($dataArray) of numbers from 1 to 100, simulating a 1-second operation for each item. It measures the execution time in two configurations:

• PowerShell 7: Uses ForEach-Object -Parallel with a concurrency limit (-ThrottleLimit) of 64.
• PowerShell 5: Processes the items sequentially, without parallelism.

Prerequisites

• PowerShell 7 or PowerShell 5 is required to run the script.
• PowerShell 7 is recommended to explore the benefits of parallel processing.

Usage Instructions

1. Save the code in a .ps1 file, for example, ParallelProcessingExample.ps1.
2. Open PowerShell.
3. Navigate to the directory where the .ps1 file is saved.
4. Run the script with the following command:

   .\ParallelProcessingExample.ps1