Chapters/powershell7-scripting-features/parallel.ps1
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#requires -version 7.0 return "This is a snippet file" Help ForEach-Object -Parameter Parallel Measure-Command {1..1000 | ForEach-Object {$_*10}} Measure-Command { 1..1000 | ForEach-Object -parallel { $_*10}} $locations = "\\ds416\backup","c:\work","c:\scripts","d:\temp","$home\Documents","c:\program files\windowspowershell\modules" measure-command { $r = $locations | ForEach-Object { $p = $_ Write-Host "[$(Get-Date -f 'hh:mm:ss.ffff')] Measuring $p" -ForegroundColor green Get-ChildItem -Path $p -file -Recurse | Measure-Object -Property length -sum -Average | Select-object @{Name="Path";Expression = {$p}},Count, @{Name="SumKB";Expression={$_.sum/1KB -as [int]}}, @{Name="AvgKB";Expression={$_.average/1KB -as [int]}} } } measure-command { $r = $locations | ForEach-Object -parallel { $p = $_ Write-Host "[$(Get-Date -f 'hh:mm:ss.ffff')] Measuring $p" -ForegroundColor green Get-ChildItem -Path $p -file -Recurse | Measure-Object -Property length -sum -Average | Select-object @{Name="Path";Expression = {$p}},Count, @{Name="SumKB";Expression={$_.sum/1KB -as [int]}}, @{Name="AvgKB";Expression={$_.average/1KB -as [int]}} } } |