PowerShell | Besoin d'amélioration des performances

Question

J'ai écrit un script PowerShell pour l'archivage d'anciens fichiers journaux ou je dis un fichier de sortie d'une application Web en TB mais le script prend beaucoup de temps. J'ai fait quelques améliorations mais je n'ai pas pu accélérer plus d'ici.

code:

#region Archive Files using 7zip 

[cmdletbinding()] 
Param 
(
[Parameter(Mandatory=$true, HelpMessage = "Path needs to be with trailing slash at the end of location.")] 
[string]$SourceFilesPath 
) 

$7zip = "C:\Program Files\7-Zip\7z.exe" 
$FilePath = "" 

foreach ($filename in $(Get-ChildItem $SourceFilesPath -Force -Recurse | where {$_.LastWriteTime -lt (get-date).AddDays(-1).ToShortDateString()})) 
{ 
    $FilePath = Get-ItemProperty $filename.FullName 
    $ZipFilePath = $filename.Directory.ToString() + "\ZippedFiles" + "\Archive_" + $filename.LastWriteTime.ToString("MMddyyyy") + ".7z" 

    $tempPath = ("-w"+"C:\Temp") 
    $OutputData = &$7zip a $tempPath -t7z $ZipFilePath $FilePath 
    $OutputData 
    if ($OutputData -contains "Everything is OK") 
    { 
     Remove-Item $FilePath -Force 
     Write-Output "File removed $FilePath" 
    } 
    Get-Item $ZipFilePath | ForEach-Object {$_.LastWriteTime = $filename.LastWriteTime} 
} 

#endregion 

Answer 1

#region Archive Files using 7zip 

[cmdletbinding()] 
Param 
(
    [Parameter(Mandatory = $true, HelpMessage = 'Path needs to be with trailing slash at the end of location.')] 
    [string]$SourceFilesPath 
) 
Import-Module ..\Invoke-Parallel.ps1 # Download from PSGallery 

$7zip = 'C:\Program Files\7-Zip\7z.exe' 

$fileToArchive = $(Get-ChildItem $SourceFilesPath -Force -Recurse | Where-Object -FilterScript { 
     $_.LastWriteTime -lt (Get-Date).AddDays(-1).ToShortDateString() 
}) 
$counter = 0 
$groupSize = 2000 # Will group items by 2,000 increments 
$groups = $fileToArchive | Group-Object -Property { 
    [math]::Floor($counter++/$groupSize) 
} 
$groups 

# This will spawn multiple instances of 7zip - depending on how many groups of 2,000 files exist 
$groups.Group | Invoke-Parallel -ScriptBlock { 
    $FilePath = $null 
    $fileName = $_ 
    $FilePath = Get-ItemProperty -Path $fileName.FullName 
    $ZipFilePath = $fileName.Directory.ToString() + '\ZippedFiles' + '\Archive_' + $fileName.LastWriteTime.ToString('MMddyyyy') + '.7z' 

    $tempPath = ('-w'+'C:\Temp') 
    $OutputData = &$Using:7zip a $tempPath -t7z $ZipFilePath $FilePath 
    $OutputData 
    if ($OutputData -contains 'Everything is OK') 
    { 
     Remove-Item $FilePath -Force 
     Write-Output -InputObject "File removed $FilePath" 
    } 
    Get-Item $ZipFilePath | ForEach-Object -Process { 
     $_.LastWriteTime = $fileName.LastWriteTime 
    } 
}