PowerShell脚本工作正常，但需要8+；运行时间

我有一个PowerShell脚本，它从服务器上获取配置文件，解析一些数据，然后ping设备以查看它们是在线还是离线。它的工作100%符合预期，但运行时间超过8小时。我只是想知道我的逻辑中是否有什么东西导致了这种情况的发生。我确实意识到这可能与其他问题有关，但我想排除这种可能性。任何人都能看到逻辑中的错误，导致它花费更长的时间，例如，如果它卡在某种循环中，等等

这是我的密码：

$logfile = "D:\Logs\MPOSPrinterPingLog.txt"
$offlineprinters = "D:\Reports\MPOS\MPOSOfflinePrinters.txt"
if (Test-Path $logfile) {Remove-Item $logfile}
if (Test-Path $offlineprinters) {Remove-Item $offlineprinters}

Add-Content $logfile "Setting local path"
$localPath = "C:\Temp\MPOS"

Add-Content $logfile "Gathering server list"
$serverList = (Get-ADComputer -Filter "Name -like 'Q0*P30' -or Name -like 'Q0*P32'" -SearchBase "OU=Print,OU=Prod,OU=POS,DC=COMPANY,DC=NET").name | Sort-Object | Out-File C:\Temp\MPOS\MPOSPrintServers.txt
$serverListPath = "C:\Temp\MPOS\MPOSPrintServers.txt"

#Retrieve a list of MPOS Print servers from text file and set to $serverNames
Add-Content $logfile "Compiling text file"
$serverNames = Get-Content -Path $serverListPath

#Iterate through each of the server names
foreach ($serverName in $serverNames) {
    Add-Content $logfile "Processing $serverName" 

    #Check if the server is online before doing the remote command
    if (Test-Connection -ComputerName $serverName -Quiet -count 1) {
        Add-Content $logfile "$serverName is online"

        #copy config file from MPOS print to local server for processing
        $timestamp1 = (Get-Date -Format g)
        Add-Content $logfile "$timestamp1 - Copying xml file from server to local path"
        $configPath = "\\$($serverName)\C$\ProgramData\Microsoft\Point Of Service\Configuration\Configuration.xml"
        Copy-Item $configPath $localPath 

        #process xml file to parse IP addresses for ping
        $timestamp2 = (Get-Date -Format g)
        Add-Content $logfile "$timestamp2 - Processing xml file from $serverName to parse data to csv"
        $xml = [xml](Get-Content C:\Temp\MPOS\Configuration.xml)
        $PrinterNames = $xml.selectNodes('//PointOfServiceConfig/ServiceObject/Device') | foreach {New-Object -TypeName psobject -Property @{LogicalName=$_.LogicalName.Name}}
        $PrinterIPs = $xml.selectNodes('//PointOfServiceConfig/ServiceObject/Device') | foreach {New-Object -TypeName psobject -Property @{HardwarePath=$_.HardwarePath}} 

        foreach ($PrinterIP in $PrinterIPs) {
            $pingableIP = $PrinterIP.HardwarePath

            if (Test-Connection $pingableIP -Quiet -Count 1) {
                $timestamp3 = (Get-Date -Format g)
                Add-Content $logfile "$timestamp3 - $serverName, $pingableIP is online and pingable"
            } else {
                $timestamp3 = (Get-Date -Format g)
                Add-Content $offlineprinters "$timestamp3 - $serverName, $pingableIP is offline!"
            }
        }
    } else {
        Add-Content $logfile "$serverName is offline!"
    }
}

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所以我相信你正面临着ping带来的问题，我不认为广告查询占用了大部分时间，所以你应该做的是，并行ping。这将是一个很好的开始

foreach ($serverName in $serverNames) {
    start-rsjob -Name $_ -ScriptBlock {
        # your code in the loop goes here #
        }
}            
Get-RSjob | Receive-RSJob

或者您可以编写自己的运行空间包装器；）

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如果您感兴趣的话，我有一个脚本解析文本文件，它需要6-7分钟才能完成，在我实现了运行空间来并行处理之后，它开始在5毫秒内完成。这有多疯狂？xD

哪一部分耗时最长？广告查询或ping？有多少设备<代码>测试连接是同步的，不允许您控制超时。我建议您在可能导致问题的位置放置一些echo，例如，查看它在循环中迭代了多少次。我认为这也是问题所在，而PoshRSJob是一个很棒的模块。我将尝试这个，非常感谢您的帮助和好意！