Name of the process with highest cpu usage

Question

I have a Samurize config that shows a CPU usage graph similar to Task manager.

How do I also display the name of the process with the current highest CPU usage per

Answer 1

With PowerShell:

Get-Process | Sort-Object CPU -desc | Select-Object -first 3 | Format-Table CPU,ProcessName -hidetableheader

returns somewhat like:

  16.8641632 System
   12.548072 csrss
  11.9892168 powershell

Answer 2

Building on Frederic's answer and utilizing the code at the bottom of the page here (for an example of usage see this post) to join the full set of processes gotten from Get-Process, we get the following:

$sampleInterval = 3

$process1 = Get-Process |select Name,Id, @{Name="Sample1CPU"; Expression = {$_.CPU}}

Start-Sleep -Seconds $sampleInterval

$process2 = Get-Process | select Id, @{Name="Sample2CPU"; Expression = {$_.CPU}}

$samples = Join-Object -Left $process1 -Right $process2 -LeftProperties Name,Sample1CPU -RightProperties Sample2CPU -Where {$args[0].Id -eq $args[1].Id}

$samples | select Name,@{Name="CPU Usage";Expression = {($_.Sample2CPU-$_.Sample1CPU)/$sampleInterval * 100}} | sort -Property "CPU Usage" -Descending | select -First 10 | ft -AutoSize

Which gives an example output of

Name                  CPU Usage
----                  ---------
firefox        20.8333333333333
powershell_ise 5.72916666666667
Battle.net               1.5625
Skype                    1.5625
chrome                   1.5625
chrome         1.04166666666667
chrome         1.04166666666667
chrome         1.04166666666667
chrome         1.04166666666667
LCore          1.04166666666667