PowerShell Job不会更快地运行

Question

我将我的脚本转换为使用作业：

Start-Job "C:\Users\user\Scripts\PowerShell\SQL-Server\Database Anon\CreateSpoofDatabase_Resumes.ps1" { $args[0], $args[1], $args[2],  $args[3], $args[4] } -ArgumentList $ServerAddress, $DatabaseName, $ScriptPath, 1, $totalCandidate_create -Name "Resume_List1"
Start-Job "C:\Users\user\Scripts\PowerShell\SQL-Server\Database Anon\CreateSpoofDatabase_Resumes.ps1" { $args[0], $args[1], $args[2],  $args[3], $args[4] } -ArgumentList $ServerAddress, $DatabaseName, $ScriptPath, 2, $totalCandidate_create -Name "Resume_List2"
Start-Job "C:\Users\user\Scripts\PowerShell\SQL-Server\Database Anon\CreateSpoofDatabase_Resumes.ps1" { $args[0], $args[1], $args[2],  $args[3], $args[4] } -ArgumentList $ServerAddress, $DatabaseName, $ScriptPath, 3, $totalCandidate_create -Name "Resume_List3"
Start-Job "C:\Users\user\Scripts\PowerShell\SQL-Server\Database Anon\CreateSpoofDatabase_Resumes.ps1" { $args[0], $args[1], $args[2],  $args[3], $args[4] } -ArgumentList $ServerAddress, $DatabaseName, $ScriptPath, 4, $totalCandidate_create -Name "Resume_List4"
Start-Job "C:\Users\user\Scripts\PowerShell\SQL-Server\Database Anon\CreateSpoofDatabase_Resumes.ps1" { $args[0], $args[1], $args[2],  $args[3], $args[4] } -ArgumentList $ServerAddress, $DatabaseName, $ScriptPath, 5, $totalCandidate_create -Name "Resume_List5"

基本上，脚本将文本文件拆分为6个较小的文件，然后使用该文件列表调用简历创建脚本。简历创建只是使用模板并使用Word COM对象和来自SQL服务器的数据填充书签。

我只用一份工作来完成这项工作，我也用12来运行它，但它对创建简历的速度并没有什么影响。它总是大约每秒2。我可以看到它实际上是正确运行脚本的每个实例：

WINWORD.EXE                  26560 Console                    1    100,556 K
WINWORD.EXE                  24192 Console                    1    102,472 K
WINWORD.EXE                   7232 Console                    1    100,072 K
WINWORD.EXE                   9300 Console                    1    103,132 K
WINWORD.EXE                  21580 Console                    1    101,416 K
WINWORD.EXE                  15896 Console                    1    118,772 K
WINWORD.EXE                  22916 Console                    1    102,352 K
WINWORD.EXE                  34512 Console                    1    101,320 K
WINWORD.EXE                  17984 Console                    1    101,208 K
WINWORD.EXE                  23964 Console                    1    101,272 K
WINWORD.EXE                   4004 Console                    1    101,928 K
WINWORD.EXE                   4700 Console                    1    101,216 K

但我不确定为什么需要相同的时间。

检查工作的结果：

  

CandidateIDs1_part12.txt进度：39/90
  CandidateIDs1_part11.txt进度：52/101
  CandidateIDs1_part1.txt进度：45/101

调用脚本：

Param (
    [string]$ServerAddress,
    [string]$DatabaseName,
    [string]$ScriptPath,
    [int]$fileNum,
    [int]$totalCandidate_create
 )

$counter = 1 # counter for timing
$candList = ($ScriptPath + "test\CandidateIDs1_part$fileNum.txt") # path for candidate ID list

$stream = [IO.File]::OpenWrite($candList)
$stream.SetLength($stream.Length - 2)
$stream.Close()
$stream.Dispose()

# Connect Word
$objWord = New-Object -ComObject Word.Application
$objWord.Visible = $false 
$wordCounter = 0
$recordCount = (Get-Content $candlist).Count 

# loop through candidate list and create resumes
foreach ($candID in Get-Content $candList) {
    if ($candID) {
        $candID = $candID -replace '\s',''

        $templateDir = Get-ChildItem ($ScriptPath + "Templates\Resumes\") | Get-Random -Count 1 
        $templateFile = $templateDir
        $templateDir =  ($ScriptPath + "Templates\Resumes\" + $templateDir)

        $lname = Invoke-Sqlcmd -Query "SELECT LEFT(personFirstName, 1) FROM tblPErson WHERE personID = $candID" -ServerInstance $ServerAddress -Database $DatabaseName

        $sqlResults = Invoke-Sqlcmd -Query "SELECT personFirstName, personSurname, CandidateAddress, CandidateCity, CandidatePostcode, 
            personMobileTelephone, CandidateState, LEFT(personFirstName, 1) FROM tblPErson INNER JOIN tblCandidate ON tblPErson.personID = tblCandidate.CandidateID
            WHERE personID = $candID" -ServerInstance $ServerAddress -Database $DatabaseName

        $firstName = $sqlResults.ItemArray[0]
        $surName   = $sqlResults.ItemArray[1]
        $Address1  = $sqlResults.ItemArray[2]
        $City      = $sqlResults.ItemArray[3]
        $Postcode  = $sqlResults.ItemArray[4]
        $Mobile    = $sqlResults.ItemArray[5]
        $State     = $sqlResults.ItemArray[6]
        $lName     = $sqlResults.ItemArray[7]

        Write-Host "Progress: $counter / "$recordCount  
        $filename = ($firstname + " " + $surname + " - " + $candID + ".doc")
        $filename2 = ($firstname + " " + $surname + " - " + $candID + ".txt")

        $saveAs = ($scriptPath + "Documents\Original Resumes\" + $lName + "\" + $filename)
        $saveAs2 = ($scriptPath + "Documents\Original Resumes\" + $lName + "\" + $filename2)

        ## Word integration
        $doc=$objWord.documents.Add($templateDir)  
        $doc.Bookmarks.Item("surName").Range.Text = $sqlResults.ItemArray[0] 
        $doc.Bookmarks.Item("firstName").Range.Text = $sqlResults.ItemArray[1]
        $doc.Bookmarks.Item("Address1").Range.Text = $sqlResults.ItemArray[2]
        $doc.Bookmarks.Item("City").Range.Text = $sqlResults.ItemArray[3]
        $doc.Bookmarks.Item("Postcode").Range.Text = $sqlResults.ItemArray[4]
        $doc.Bookmarks.Item("Mobile").Range.Text = $sqlResults.ItemArray[5]
        $doc.Bookmarks.Item("State").Range.Text = $sqlResults.ItemArray[6]
        $doc.SaveAs([REF]$saveAs)
        $doc.Close()

        $doc2=$objWord.Documents.Add($saveAs) 
        $doc2.SaveAs([REF]$saveAs2, [REF] 2)

        if ($wordCounter -eq 100) {
            $objWord.Quit()
            $objWord = New-Object -comobject Word.Application
            $objWord.Visible = $false 
            $wordCounter = 0
        }

        $counter += 1 ## Add one to counter
        $wordCounter += 1
        $doc2.Close())
    }
}

$objWord.Quit();
Stop-Job    -Name ("Resume_List"+$fileNum);
Remove-Job  -Name ("Resume_List"+$fileNum);

启动脚本：

# Kill existing word processes
taskkill /f /pid WINWORD.EXE

$candList = ($ScriptPath + "CandidateIDs1.txt")

# Delete all files first
Get-ChildItem -Path ($ScriptPath + "Documents\Original Resumes\") -Include *.* -File -Recurse | foreach { $_.Delete()}

# Generate candidate list
Invoke-Sqlcmd -Query "SELECT TOP 1200 CandidateID FROM tblCandidate" -ServerInstance $ServerAddress -Database $DatabaseName | Out-File -filePath $candList;

# Cleanse candidate list for reading
Get-Content $candList |
    select -Skip 3 |
    Set-Content "$candList-temp"
move "$candList-temp" $candList -Force

[int]$maxsize = (Get-Content $candList).Count / 5.9

$sourcefilename = ($scriptPath + "CandidateIDs1.txt")
$destinationfolderpath = ($scriptPath + "test")

$linecount = 0
$filenumber = 1

$srcfile = gci $sourcefilename
$filebasename = $srcfile.BaseName
$fileext = $srcfile.Extension

Get-Content $sourcefilename | Measure-Object | ForEach-Object { $sourcelinecount = $_.Count }

$content = get-content $sourcefilename | % {
    #Add-Content $destinationfolderpath\$filebasename_$filenumber.txt "$_"
    Add-Content $destinationfolderpath\$filebasename`_part$filenumber$fileext "$_"
    $linecount ++
    if ($linecount -eq $maxsize) {
        $filenumber++
        $linecount = 0
        Write-Host "Writing part: $destinationfolderpath\$filebasename`_part$filenumber$fileext"
    }
}

Start-Job "C:\Users\Scripts\PowerShell\SQL-Server\Database Anon\TRIS-CreateSpoofDatabase_Resumes.ps1" { $args[0], $args[1], $args[2],  $args[3], $args[4] } -ArgumentList $ServerAddress, $DatabaseName, $ScriptPath, 1, $totalCandidate_create -Name "Resume_List1"
Start-Job "C:\Users\Scripts\PowerShell\SQL-Server\Database Anon\TRIS-CreateSpoofDatabase_Resumes.ps1" { $args[0], $args[1], $args[2],  $args[3], $args[4] } -ArgumentList $ServerAddress, $DatabaseName, $ScriptPath, 2, $totalCandidate_create -Name "Resume_List2"
Start-Job "C:\Users\Scripts\PowerShell\SQL-Server\Database Anon\TRIS-CreateSpoofDatabase_Resumes.ps1" { $args[0], $args[1], $args[2],  $args[3], $args[4] } -ArgumentList $ServerAddress, $DatabaseName, $ScriptPath, 3, $totalCandidate_create -Name "Resume_List3"
Start-Job "C:\Users\Scripts\PowerShell\SQL-Server\Database Anon\TRIS-CreateSpoofDatabase_Resumes.ps1" { $args[0], $args[1], $args[2],  $args[3], $args[4] } -ArgumentList $ServerAddress, $DatabaseName, $ScriptPath, 4, $totalCandidate_create -Name "Resume_List4"
Start-Job "C:\Users\Scripts\PowerShell\SQL-Server\Database Anon\TRIS-CreateSpoofDatabase_Resumes.ps1" { $args[0], $args[1], $args[2],  $args[3], $args[4] } -ArgumentList $ServerAddress, $DatabaseName, $ScriptPath, 5, $totalCandidate_create -Name "Resume_List5"
Start-Job "C:\Users\Scripts\PowerShell\SQL-Server\Database Anon\TRIS-CreateSpoofDatabase_Resumes.ps1" { $args[0], $args[1], $args[2],  $args[3], $args[4] } -ArgumentList $ServerAddress, $DatabaseName, $ScriptPath, 6, $totalCandidate_create -Name "Resume_List6"