If you’d like to generate super large files for stress test purposes, you don’t have to waste time pumping data into a file to make it grow. Instead, simply set the desired file size to reserve the space on disk.
This creates a 1GB test file:
# create a test file $path = "$env:temp\dummyFile.txt" $file = [System.IO.File]::Create($path) # set the file size (file uses random content) $file.SetLength(1gb) $file.Close() # view file properties Get-Item $path