CPU usage

Discussion in 'Technical Archives' started by kosmo1982, Mar 16, 2014.

  1. kosmo1982

    kosmo1982 Registered

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    My specs are on the left. I have amd fx6100 six cores 3,3 Ghz CPU. After last update my FPS whent tragicaly bad. So i download HWiNFO to see loads on my CPU and GPU. GPU is maxing out, but CPU not. On firts core usage gets to 56% and on other 5 cores gets max to 30%. Anything i can do about it? Game is unplayble for me right now with more than 5 AI at mid/low/off settings right now.
     
  2. Gearjammer

    Gearjammer Registered

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    As far as hardware goes, I don't see that you have a problem. All of what you have should run the game perfectly well. I would suggest reloading the game first, making sure that you save anything that you don't want to lose in the uninstall. If that doesn't resolve the issue, consider reloading drivers for the graphics car followed by the drivers for the motherboard to see which helps.
     
  3. kosmo1982

    kosmo1982 Registered

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    its my 3rd clean installation of rf2(tried last build and two unstable builds) and second of windows. Also tried previouse ATI drivers and it didnt help too. Other games run fine
     
  4. YoLolo69

    YoLolo69 Registered

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    I don't think your CPU have any problem here: it's powerful enough to feed your GPU and can even take some rest (Average 34%, 66% idle) because your GPU is the bottleneck in rF2 on your system and have too much work to be done (100%). With a better Video card the CPU usage will raise as CPU will have to work heavier to follow a powerful GPU. It also mean usually than you can raise fps by lowering graphical settings in the game.

    Saying that, note I'm not an AMD video card specialist, but the situation you describe is usual. It could have been the other way: a powerful GPU have to wait for a less powerful CPU maxed out.

    Each games have a specific equilibrium, and have a specific CPU and GPU usage.

    Did I miss something (could be)?

    Edit: fixed cpu%
     
  5. kosmo1982

    kosmo1982 Registered

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    thx for relply. yeah it looks like my graphic card is holding cpu. strange its not so bad. will wait for new build and gpu drivers. Not going to buy new GPU right now
     
  6. David Wright

    David Wright Registered

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    Think of a PC as a pipeline. The CPU is the first part of the pipe. It supplies data to the second part of the pipe - the GPU.

    Your CPU could be a big wide pipe and your GPU a small narrow pipe. In this case your system will be limited by the GPU which will be 100% occupied. Alternatively your CPU could be a narrow pipe and the GPU a wide pipe. Your CPU would be maxed and your GPU would be taking it easy. Your overall system is only as strong as the weakest link.

    There are two other factors. The general consensus is rF2 doesn't run well on AMD graphics cards, and the game can only really make use of two cores, so if you have a four or six core CPU the cores will never be at maximum capacity.
     
  7. kosmo1982

    kosmo1982 Registered

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    yeah, good expalanation David. Shouldnt have bought AMD i guess if i want to play RF2
     
  8. Spinelli

    Spinelli Banned

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    Yup, I wish it wasn't so :(. As you said, RF2 is threaded for 2 cores only :(. A benchmark posted some months back did show some decent improvements when going from using a 2-core processor to a 3-core. 4 cores showed just about nothing though, improvements stopped after 3. I'm guessing that these 2-core to 3-core improvements were/are a result of resources being freed. The 3rd core possibly allows the 2 cores that RF2 natively uses, to have some breathing room as the 3rd core could take some of the strain off the other 2 cores with regards to the operating system, background tasks/processes/services, etc.
     
    Last edited by a moderator: Mar 20, 2014

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