Question

我目前正在尝试在很长一段时间内收集流程的平均性能值。不幸的是，我的脚本只能平均所有收集的值，而不是单个进程的平均值。

下面的脚本是我最终得到的，遗憾的是它并没有为每个过程提供输出：

Write-Output (Get-Counter -Counter "\Processor(_Total)\% Processor Time","\Process(Chrome)\% Processor Time" -SampleInterval 1 -MaxSamples 25 |
    Select-Object -ExpandProperty CounterSamples |
    Select-Object -ExpandProperty CookedValue |
    Measure-Object -Average).Average

理想情况下，我希望有一个对象的输出值格式如下：

Output.chrome = 5.1283123
Output.total = 23.128732

Answer 1

这是一种方法：

$chrome = @()
$total = @()
$counterName = "\Processor(_Total)\% Processor Time","\Process(Chrome)\% Processor Time"

Get-Counter -Counter $counterName -SampleInterval 1 -MaxSamples 10 |
    Select-Object -ExpandProperty countersamples | % {
        $object = New-Object psobject -Property @{
            InstanceName = $_.InstanceName
            CookedValue = $_.CookedValue
        }

        if($object.InstanceName -eq "Chrome") {
            $chrome += $object
        } else {
            $total += $object
        }
    }

$output = [PSCustomObject]@{
    Chrome = ($chrome | Measure-Object -Average CookedValue).Average
    Total = ($total| Measure-Object -Average CookedValue).Average
}

$output

输出：

          Chrome            Total
          ------            -----
5,61702990401208 31,4667298163454

Answer 2

This works for me:

Get-Counter -Counter "\Processor(_Total)\% Processor Time","\Process(Chrome)\% Processor Time" -SampleInterval 1 -MaxSamples 25 `
| Select-Object -ExpandProperty CounterSamples `
| Group-Object -Property InstanceName `
| ForEach-Object { 
        $_ | Select-Object -Property Name, @{n='Average';e={($_.Group.CookedValue | Measure-Object -Average).Average}};
    } `
| Format-Table -AutoSize;

Output:

Name            Average
----            -------
_total 11.8878325281858
chrome 4.80058851283048

It'd be easy enough to conditionally rename the names.

EDIT: Try this for PowerShell v2.0:

Get-Counter -Counter "\Processor(_Total)\% Processor Time","\Process(Chrome)\% Processor Time" -SampleInterval 1 -MaxSamples 25 `
| Select-Object -ExpandProperty CounterSamples `
| Group-Object -Property InstanceName `
| ForEach-Object { 
        $_ | Select-Object -Property Name, @{n='Average';e={(($_.Group | Measure-Object -Property CookedValue -Average).Average)}};
    } `
| Format-Table -AutoSize;

收集Get-Counter输出的平均值

2 个答案: