How come I can't see Memory/CPU usage for services on windows?

On windows you can see pull up the task manager or Get-Process in powershell to get a list of running processes along with their memory and cpu usage.

You can also (on windows 8 or Get-Service in powershell) view all running services. Yet for services you do not get any of those numbers.

From my developer point of view this always seemed a bit odd. Sure, a service requires a bunch more deployment effort and is awkward to code and debug, but otherwise it's just a program same as any other.

I'm sure there's a good reason for why services do not have those numbers, one that probably has something to do with how windows runs services. What is that reason?

Source: http://stackoverflow.com/questions/14878239/how-come-i-cant-see-memory-cpu-usage-for-services-on-windows

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