Powershell 获取具有 id process 的特定进程计数器

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

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 2

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 3

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

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

Or if you avoid to use Get-Counter and wait the sample interval, try use WMI:

$id = YourProcessIdHere
(gwmi -class Win32_PerfRawData_PerfProc_Process -Namespace "root\CIMV2" | ? {$_.IdProcess -eq $id}).Name;

Answer 4

It is possible to obtain some performance information with the Get-Process commandlet directly and avoid the need to resolve an instance ID.

For the case of the memory working set, 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