I’m self studying for a server+ cert and ran into this paragraph. Am I right that CPU time is a set of ticks utilized, the CPU Capacity is the total capacity, and the CPU usage is the percentage of ticks:capacity?

I have been making notes from this chapter, and the more I get into it the more I seem to find things like this that seem slightly off.

Does anyone have a physical copy of the 2ed McMillan CompTia Server+ study guide I can compare against? I feel like someone is messing with me.

  • WolfLinkEnglish
    2·
    3 days ago

    You are correct. Here’s a thread on how CPU usage is calculated:

    https://stackoverflow.com/questions/3748136/how-is-cpu-usage-calculated

    It’s basically (CPU time of the process) / (clock time), or (CPU time)/(clock time * number of hardware threads), depending on how it’s reported.

    Note that there’s are some complications here, like the time “wasted” context switching or running the OS.

    • SpikesOtherDog@ani.socialOPEnglish
      1·
      3 days ago

      Thanks, good thread. I’m not sure if that’s one I referenced to confirm what I suspected, but it is very clear.