How to Multithread PowerShell Ping Script

Question

I recently finished a script to ping every computer/workstation on a list and output it in a nice format.

There are thousands of computers to ping on the next list so it would take a while to run normally. How might I be able to multithread this so the job can be completed within a reasonable time-frame?

Answer 1

workflow Ping
{
  param($computers)

    foreach -parallel ($computer in $computers)
    {
        $status = Test-Connection -ComputerName $computer -Count 1 -Quiet

        if (!$status)
            { Write-Output "Could not ping $computer" }
    }
}

$computers = @(
    "wd1600023",
    "sleipnir"
)

Ping $computers

Answer 2

You could spawn multiple jobs or you could use a workflow and a Foreach -parallel loop.