Only +- 50%cpu and GPU are used

Discussion in 'Technical Archives' started by JOR, Dec 7, 2012.

  1. JOR

    JOR Registered

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    My specs:

    i7
    ATI HD 5850
    res: 1920*1080

    besides that: Lowest possible graphical settings, vsync off

    => terrible fps

    lets say between 35<=>60

    Tried 101,107,118,125, same result

    Monitorred with gpu-z and Win7 build in perf.monitor

    +- 50 % of CPU and GPU are used while driving

    CPU => ok i can understand that, i7 = overkill so 50% usage looks normal
    GPU => Not normal , rfactor should use almost 100% GPU, offcours thats the reason for my low fps

    Anyone experience the same?
     
  2. DurgeDriven

    DurgeDriven Banned

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    You are not going to get anymore then "terrible fps" ( your words not mine ! )

    It is only a 5850 ?

    With a i7 that's a bottleneck mismatch EXAMPLE: measley GTX570 you would have 60FPS
     
  3. MJP

    MJP Registered

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    It should be performing much better than that, 50% on the CPU sounds good (do you have HT on?) and as you say 50% on the GPU isn't good. I've seen others complaining of poor performance finding out their power management settings for the CPU and/or the GPU being too aggressive and downclocking unexpectedly in game. However I'd expect the usage of one or the other to shoot up as it struggles to run the game at lower clocks.

    FWIW I have an i3-2120 dual core with HT @3.3GHz and a GTX470, if I turn HT off the game often maxes out both cores and with HT on I've seen usage hit as much as 90% on occasions. In the last build I'd done some testing with resolution and settings and at Mills in the Megane with 24 AI, back of grid following them round on a formation lap I was getting 119 fps average (lowest settings) @1920x1200. Dropping the resolution didn't improve fps which points to a CPU limitation, wish I bought a quad at the time I upgraded the builds didn't use anywhere near the amount of CPU they do now. :(
     
  4. DurgeDriven

    DurgeDriven Banned

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    35-40 FPS is it but finnito ?

    he complains about performance but uses the Load % as maybe a reason the FPS is "terrible"
    it is not LOW it is CORRECT :)

    I think that is the important thing point here..........it is called BOTTLENECK ;)
     
  5. JOR

    JOR Registered

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    I do have HT on yes.(I'll turn it off and run some tests)

    My 5850 indeed is the bottleneck, but i would expect it to run closer to 100%GPU

    I do monitor my gpu with gpu-z, and can say it is not downclocking while driving.

    I remember with rfactor versions lower than 101 i had my better FPS, and no AI 'warping'.

    I would need a link to older versions(lower that 101), so i can test again
     
  6. DurgeDriven

    DurgeDriven Banned

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    At the very least I would do a image of my C drive.

    Do a fresh windows, preferably Window 7 as it is proven to be 101% solid.

    Use the driver that worked well not the latest. ( your version 5850 may do better with older drivers )

    Don't touch any settings other then CP quality

    Then do a full fresh rF2

    If it works better do image of c drive

    Disregard all that if you have undertaken.

    I know Fresh OS drivers and sims is a clique but a lot of the time it works. :)

    To be honest I would not expect much more the 40FPS
     
  7. 88mphTim

    88mphTim racesimcentral.net

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    Which wheel?

    Do you have a CPU throttling system enabled?
     
  8. JOR

    JOR Registered

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    my wheel is g25
    i do have speedstep(intel) enabled yes
     
  9. 88mphTim

    88mphTim racesimcentral.net

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    Try disabling that, others have said that their CPU keeps throttling down, meaning the sim isn't running on a CPU it needs anymore. Don't disable safety shutdown, which is usually in the same area, by mistake. If your comp ever gets too hot, you WANT it to shut off. :)
     
  10. JOR

    JOR Registered

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    I disabled speedstep,
    did a test run 1024*768 lowest quality on sebring
    55 fps at start with 10 AI.
    My g25 was not connected
    when no cars visible after start(stood still after start signal) i would get 75-85 fps(vsync off)

    Something's wrong here, neighter my gpu or cpu are pushed.

    I sohould reinstall to test further, but just no time for it atm
     
  11. 88mphTim

    88mphTim racesimcentral.net

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    OK, thanks for trying that.
     

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