Speed up Test-Connection before Foreach

Question

I made a script to check if users desktop folder are under the cuota limitation, if they\'re under the cuota limitation the backup to the server will be done correctly.

Answer 1

test-connection is weirdly fast with the -asjob parameter, pinging about 200 computers in 4 seconds:

$list = cat hp.txt
test-connection $list -AsJob ; job | receive-job -wait -AutoRemoveJob

Answer 2

To speed up your script you need to run the checks in parallel (as others have already mentioned). Put your checks and the worker code in a scriptblock:

$sb = {
    Param($computer, $username)

    if (Test-Connection -Quiet -Count 2 $computer) { return }

    $w7path = "\\$computer\c$\users\$username\desktop"
    $xpPath = "\\$computer\c$\Documents and Settings\$username.TUITRA..."

    if (Test-Path $W7path) {
        #...
    } elseif (Test-Path $xpPath) {
        #...
    } else {
        #...
    }
}

Then run the scriptblock as parallel jobs:

$csv | ForEach-Object {
    Start-Job -ScriptBlock $sb -ArgumentList $_.PCName, $_.User
}

# wait for completion
do {
    Start-Sleep -Milliseconds 100
} while (Get-Job -State 'Running')

# cleanup
Get-Job | ForEach-Object {
    Receive-Job -Id $_.Id
    Remove-Job -Id $_.Id
} | Out-File $outputReport

Use a queue if you need to limit the number of parallel jobs.