如何在Powershell中对进程名称的CPU使用率值求和

Question

I have a powershell script to check CPU Usage of process in Window.

$Output=""
$Processes = (get-wmiobject Win32_PerfFormattedData_PerfProc_Process) 
foreach($Process in $Processes)
{
    $Output += $Process.name + "=" + $Process.PercentProcessorTime + " "
}
Write-Host "${Output}"

I ran it. The result have many same process name. Ex:

chrome=0 chrome#1=0 chrome#2=0 chrome#3=0 chrome#4=0 chrome#5=0 chrome#6=0 chrome#7=0 chrome#8=0 chrome#9=0 PUTTY=0 chrome#10=18 chrome#11=0

I want to list all process and CPU Usage of them as in picture. And same process will be sum.

I want to sum value same process as below:

$Processes = get-process | Group-Object -Property ProcessName
$Output="OK |"
foreach($Process in $Processes)
{
    $Obj = New-Object psobject
    $Obj | Add-Member -MemberType NoteProperty -Name Name -Value $Process.Name
    $Obj | Add-Member -MemberType NoteProperty -Name Mem -Value ($Process.Group|Measure-Object WorkingSet -Sum).Sum
    $Output += $Process.Name + "=" + $($Process.Group|Measure-Object WorkingSet -Sum).Sum +" "
}
Write-Host "${Output}"

And result is sum of same process:

armsvc=1736704 ASDSvc=11309056 audiodg=18563072 bash=1323008 calc=4136960 chrome=2138599424  

Answer 1

You are concatenating together a string (of text) rather than adding up the total.

This will give you the total process processor usage. *Note: the total will be greater than 100%, because the output also includes the _Total and Idle (bot 100% on my machine)

$Output=0

$Processes = (get-wmiobject Win32_PerfFormattedData_PerfProc_Process) 
foreach($Process in $Processes)
{
   $Output += $Process.PercentProcessorTime 
}
Write-Host "Total Processor Usage: $Output %"

Example output:

Total Processor Usage: 318 %

Edit

This should output something similar to what you see in the task manager.

$Processes = (get-wmiobject Win32_PerfFormattedData_PerfProc_Process) 

$Processes | %{  New-Object psobject -Property `
     @{ Time = $_.PercentProcessorTime; 
        Name = ($_.name -replace "#\d+", "" )}}`
 | ?{ $_.Name -notmatch "_Total|Idle" } `
 | Group-Object Name `
 | %{ New-Object psobject -Property `
      @{ Name = $_.Name; 
         Sum = ($_.Group | Measure-Object Time -Sum ).Sum }} `
 | Format-Table

Answer 2

$Processes = (get-wmiobject Win32_PerfFormattedData_PerfProc_Process) 

$procStrings = @()
$Processes | %{  New-Object psobject -Property `
     @{ Time = $_.PercentProcessorTime; 
        Name = ($_.name -replace "#\d+", "" )}}`
 | ?{ $_.Name -notmatch "_Total|Idle" } `
 | Group-Object Name `
 | %{ 
    $procStrings += "$($_.Name)=$(($_.Group | Measure-Object Time -Sum ).Sum)"}

$procStrings -join " "