Question

我正在尝试编写一个脚本，为超级虚拟处理器输出性能计数器的后30个值。

参考：https://blogs.technet.microsoft.com/neales/2016/10/24/hyper-v-performance-cpu/ ->虚拟机处理器使用情况，以及Hyper V机器上每个VM的使用情况。

我试图移动回声，但是它并没有给我所有好的价值:( 谁能和我一起发光？

        $vms = Get-VM | Where { $_.State –eq ‘Running’ }

Foreach ( $vm in $vms ) {

   Write-Host 'Status: {0} `n ---------- `n' $vm.Name

   $processors = Get-VMProcessor -VMName $vm.Name

   Foreach ( $processor in $processors ) {

      Write-Host '{0}: `n' $processor.Count

      $procCount = $processor.Count 

      for($i = 0 ; $i -le $procCount; $i++){

      $fullcounter = "\\" + $env:computername + "\Hyper-V Hypervisor Virtual Processor(" + $vm.Name + ":Hv VP " + $i + ")\% Guest Run Time"


          $ret = Get-Counter -Counter $fullcounter -SampleInterval 1 -MaxSamples 30 `
                 | Select-Object -ExpandProperty CounterSamples `
               | Group-Object -Property InstanceName `
               | ForEach-Object { 
                  $_ | Select-Object -Property Name, @{n='Average';e= {($_.Group.CookedValue | Measure-Object -Average).Average}};
                }
         Write-Host "Counter average: $ret"

      }
   }
}

我得到的输出是：

Status: {0} `n ---------- `n CenTOS
{0}: `n 2
Counter average: @{Name=centos:hv vp 0; Average=13.1989705068454}
Counter average: @{Name=centos:hv vp 1; Average=12.9653966370857}

Counter average: 
Status: {0} `n ---------- `n S-Zabbix
{0}: `n 4
Counter average: @{Name=s-zabbix:hv vp 0; Average=5.86643551294767}
Counter average: @{Name=s-zabbix:hv vp 1; Average=1.59246232101088}
Counter average: @{Name=s-zabbix:hv vp 2; Average=1.06161183102294}
Counter average: @{Name=s-zabbix:hv vp 3; Average=1.16016178713955}

Centos有2个CPU，并且还给0和1，这是可以的。但是1之后我得到

Get-Counter : No data to return.
At line:20 char:18
+ ...      $ret = Get-Counter -Counter $fullcounter -SampleInterval 1 -MaxS ...
+                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidResult: (:) [Get-Counter], Exception
    + FullyQualifiedErrorId : CounterApiError,Microsoft.PowerShell.Commands.GetCounterCommand

数字3之后的zabbix也一样。

我几乎是剧院。

Answer 1

如果您要查找的只是计算机上运行的每个管理程序的最后30个用法样本，则可以大大简化此代码。代替示例中使用的基于C的逻辑，让我们尝试基于虚拟机的数据轴对输出进行脚本编写，并有条不紊地遍历每个虚拟机。（一种更面向对象的方法，适合Powershell。）

如果您想同时全部获取这些数据，我认为它将需要某种并行处理，这是我以前从未使用过的。也许其他人可以解决这个问题。

以下脚本（如果上面的脚本在类似的上下文中起作用）将依次循环通过本地计算机上的每个管理程序，然后通过每个处理器核心，然后打印出计数器值（如果计数器配置正确））。

需要使用this来获取Get-Counter命令的行为。

$vms = Get-VM | Where { $_.State –eq ‘Running’ }

Foreach ( $vm in $vms ) {
   Write-Host 'Status: {0} `n ---------- `n' -f $vm.Name

   $processors = Get-VMProcessor -VMName $vm.Name 

   Foreach ( $processor in $processors ) {
      Write-Host '{0}: `n' -f $processor.Name #supposedly. Might need to change this

      $fullcounter = "\\" + $env:computername + "\Hyper-V Hypervisor Virtual Processor(" + $vm.Name + ":Hv VP " + $processor.IndexOf($processors) + ")\% Guest Run Time"

      Foreach ( $i in 1..30 ) {
         $ret = Get-Counter -Counter $fullcounter -SampleInterval 1 -MaxSamples 30 `
                | Select-Object -ExpandProperty CounterSamples `
                | Group-Object -Property InstanceName `
                | ForEach-Object { 
                  $_ | Select-Object -Property Name, @{n='Average';e= {($_.Group.CookedValue | Measure-Object -Average).Average}};
                }
         Write-Host "Counter average: $ret"
      }
   }
}

需要测试。已针对显示进行了优化。如果您希望脚本返回一个对象，建议您使用Class HypervisorUnit { }之类的东西。如果我误解了您的要求，请告诉我。

Answer 2

解决方案：

    $vms = Get-VM | Where { $_.State –eq ‘Running’ }

Foreach ( $vm in $vms ) {

   Write-Host 'Status: {0} `n ---------- `n' $vm.Name

   $processors = Get-VMProcessor -VMName $vm.Name

   Foreach ( $processor in $processors ) {

      Write-Host '{0}: `n' $processor.Count

      $procCount = $processor.Count 

      for($i = 0 ; $i -le $procCount-1; $i++){

      $fullcounter = "\\" + $env:computername + "\Hyper-V Hypervisor Virtual Processor(" + $vm.Name + ":Hv VP " + $i + ")\% Guest Run Time"


          $ret = Get-Counter -Counter $fullcounter -SampleInterval 1 -MaxSamples 30 `
                 | Select-Object -ExpandProperty CounterSamples `
               | Group-Object -Property InstanceName `
               | ForEach-Object { 
                  $_ | Select-Object -Property Name, @{n='Average';e= {($_.Group.CookedValue | Measure-Object -Average).Average}};
                }
         Write-Host "Counter average: $ret"

      }
   }
}

结果：

    Status: {0} `n ---------- `n CenTOS
{0}: `n 2
Counter average: @{Name=centos:hv vp 0; Average=13.4647683016234}
Counter average: @{Name=centos:hv vp 1; Average=13.8969682205744}
Status: {0} `n ---------- `n S-Zabbix
{0}: `n 4
Counter average: @{Name=s-zabbix:hv vp 0; Average=1.26615923294145}
Counter average: @{Name=s-zabbix:hv vp 1; Average=5.69107385267803}
Counter average: @{Name=s-zabbix:hv vp 2; Average=1.14422252254857}
Counter average: @{Name=s-zabbix:hv vp 3; Average=1.44512414780457}

读出性能计数器的问题（数组问题）

2 个答案: