PowerShell 复制 Measure-Command [-InputObject <PSObject>] [-Expression] <ScriptBlock> [<CommonParameters>]说明Measure-Command cmdlet 在内部运行脚本块或 cmdlet,将操作的执行时间超时,并返回执行时间。备注 脚本块由 Measure-Command 当前作用域中运行,而不是子作用域运行。
# 定义要测试的代码 $codeBlock = { 1..1000000 | ForEach-Object { $result = $_ * 2 Write-Output $result } } # 测量代码执行时间 $elapsedTime = Measure-Command $codeBlock # 输出执行时间 Write-Output …
(Measure-Command{ &$test.Value$_}).TotalMilliseconds [pscustomobject]@{ Iterations =$_Test =$test.Key TotalMilliseconds = [Math]::Round($ms,2) } [GC]::Collect() [GC]::WaitForPendingFinalizers() }$groupResult=$groupResult|Sort-ObjectTotalMilliseconds$groupResult|Select-Object*, @{ Nam...
($PhysicalMemory.Capacity | Measure-Object -Sum).Sum /1gb)) return @{ Capacitys = $PhysicalMemory.Capacity; Speeds=$Speed; Speed_Average = $Speed_Average Capacity_total = $capacity_total.ToString()+' Gb'; Free_total = $free_total.ToString()+' Gb'; Usage_Rate = ([math]::round(($...
(Measure-Command{ &$test.Value-Count$_}).TotalMilliseconds [pscustomobject]@{ CollectionSize =$_Test =$test.Key TotalMilliseconds = [Math]::Round($ms,2) } [GC]::Collect() [GC]::WaitForPendingFinalizers() }$groupResult=$groupResult|Sort-ObjectTotalMilliseconds$groupResult|Select-Object*, @...
Activity to invoke the Microsoft.PowerShell.Utility\Measure-Command command in a Workflow. C++ Copy public ref class MeasureCommand sealed : Microsoft::PowerShell::Activities::PSActivity Inheritance NativeActivity PipelineEnabledActivity PSActivity MeasureCommand Constructors Expand table MeasureCommand...
measure-command -expression {$null = "abc"} 效率高于 {"abc" |out-null } foreach {$p in $pp}效率高于 $pp|foreach-object {$_} if(1) {"Do"} 效率高于 If (1 -eq $true) {"Do"} ,高于 $a=1 ;if($a = 1) {"Do"}
Get-CimClass-Namespace root\CIMV2|Measure-Object 统计到的结果如下 可以看到数量为 1202,这个数字很大,但不是绝对的,随着我们的系统安装不同硬件,软件,这个数量 可能还会改变。那么接下来又有一个问题了,1000多个 WMI 类中,我们怎么知道哪一个是网卡的类?这 一个问题,即使你曾经用过,也是不可能一下就记起来...
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measure-command -expression {$null = "abc"} 效率高于 {"abc" |out-null } foreach {$p in $pp}效率高于 $pp|foreach-object {$_} if(1) {"Do"} 效率高于 If (1 -eq $true) {"Do"} ,高于 $a=1 ;if($a = 1) {"Do"}