Powershell Get a specific process counter with id process

Question

I want to get specific counters for processes that I have process id's for. However I can't think of a way to use where-object to match the process for the counter. Like

Where Gc '\process(*)\id process -eq 456 gc '\process($name)\working set'

So use the process id to retrieve the name and get the working set (or something to that effect).

Answer 1

You can get counters for a process name so first get the process name by using its Id and then embed the process name in the counter. For example:

$id = # your process id
$proc = (Get-Process -Id $id).Name
Get-Counter -Counter "\Process($proc)\% Processor Time"

Answer 2

It seems a bit convoluted to get the correct performance counter path for a process with multiple instances of the same process name:

$proc_id=6580
$proc_path=((Get-Counter "\Process(*)\ID Process").CounterSamples | ? {$_.RawValue -eq $proc_id}).Path
Get-Counter ($proc_path -replace "\\id process$","\% Processor Time")

Timestamp                 CounterSamples
---------                 --------------
11/20/2014 5:39:15 PM     \\myhost\process(conhost#2)\% processor time :
                          0

Answer 3

It's easy with the get-process commandlet. Just filter the output for the process id you want using where-object, then select the parameters you're interested in:

get-process | where-object{ $_.id -eq 456 } | select name,workingset

Answer 4

If you want a solution that also include process with multiple instance IDs you can use :

$p = $((Get-Counter '\processus(*)\id de processus' -ErrorAction SilentlyContinue).CounterSamples | % {[regex]$a = "^.*\($([regex]::Escape($_.InstanceName))(.*)\).*$";[PSCustomObject]@{InstanceName=$_.InstanceName;PID=$_.CookedValue;InstanceId=$a.Matches($($_.Path)).groups[1].value}})
$id = # your process id
$p1 = $p | where {$_.PID -eq $id}
Get-Counter -Counter "\Process($($p1.InstanceName+$p1.InstanceId))\% Processor Time"
# In french
# Get-Counter -Counter "\Processus($($p1.InstanceName+$p1.InstanceId))\% temps processeur"