。 在ForEach-Object -Parallel块内,函数的递归调用会出现问题,因为并行块内无法识别函数。这是因为在并行处理中,多个任务被同时执行,而函数调用需要通过堆栈来跟踪执行流程。在并行...
Parallel.For 和 Parallel.ForEach结构就是这样做的。目标：编写一个shell脚本，以便能够将mongoDb中的数...
Parallel processing executes multiple operations simultaneously. In PowerShell, this is achieved withForeach-Object -Parallel. It processes pipeline items concurrently rather than sequentially. Each iteration runs in a separate PowerShell runspace. This is ideal for CPU-bound or I/O-bound operations. ...
即使在使用$using:关键字 (keyword) 的情况下Foreach-Object -Parallel,也不支持PipelineVariable通用参数变量。 示例17:在嵌套并行脚本 ScriptBlockSet 中传递变量 可以在作用域的脚本块外部Foreach-Object -Parallel创建变量,并在脚本块$using中使用该变量和关键字 (keyword) 。
PowerShell 複製 1..3 | ForEach-Object -Parallel { Write-Error "Error: $_" } Write-Error: Error: 1 Write-Error: Error: 3 Write-Error: Error: 2範例16:在平行執行中終止錯誤此範例示範一個平行執行腳本區塊中的終止錯誤。 PowerShell 複製 1..5 | ForEach-Ob...
使用 -Parallel 参数比不用要快 10 秒钟左右。 ForEach-Object 是以创建新线程的方式并行执行脚本块(<ScriptBlock>)。由于创建新线程需要开销,所以使用 -Parallel 是否就一定比比用要快,要看脚本块的具体情况。如果脚本块的执行时间比较长,使用 -Parallel 还是有效果的。
0..5 | ForEach-Object -ThrottleLimit 6 -Parallel { $localAddToMe = $using:addToMe $psvar = $using:psvar Write-Host $_ if($_ -gt 3) { [System.Threading.Monitor]::Enter($psvar) $psvar.Value = $true [System.Threading.Monitor]::Exit($psvar) ...
I want to run a Foreach-Object in parallel with the invoke-command passed having a scriptblock that references a function. $Workload += Query-SqlData -SqlServer $SqlServer -Database master -Query $Tsql | Select Instance, Database $Workload |…
PowerShell 7.0 Preview 3 is now available with a new ForEach-Object Parallel Experimental feature. This feature is a great new tool for parallelizing work, but like any tool, it has its uses and drawbacks. This article describes this new feature, how it works, when to use it and when ...
ForEach-Object : Parameter set cannot be resolved using the specified named parameters. At XXXXXXXXXXXXXX\ListOldOSes-OtherVersion.ps1:15 char:13 + $complist | ForEach-Object -parallel{ + ~~~ + CategoryInfo : MetadataError: (:) [ForEach-Object], ParameterBindingException + FullyQu...