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Wait for gpu

Discussion in 'General Discussion' started by Kingkopa124, May 9, 2019.

  1. Kingkopa124

    Kingkopa124
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    I was wondering what the wait for gpu stands for when you press control +f to bring up the FPS counter
     

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  2. krallopian

    krallopian
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    Basically how long the game has to wait for your gpu to finish its work. Generally you want 0.1 anything more means it's working hard and holding things up.

    I run three 1080p screens and one 4k screen and my gpu has no issue running media on all screens at the same time. UNTIL there's an app fighting for focus, such as Facebook. Then my gpu time goes up to 0.4 to 2.0 so I just minimize that screen.
     
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  3. Kingkopa124

    Kingkopa124
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    Ahh I see it fluctuates but most of the time is in the 10.0s sometimes it’ll jump to the 20s considering I have a 950 with 2gb of vram I can see it’s a bit of an issue and I reduced just about everything to low and my gpu was still at 100%, I need to upgrade my whole system anyways though, I’ll probably wait for 3rd gen Ruben and Navi to come out before I decide
     
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  4. krallopian

    krallopian
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    950 is getting up there with grandpa these days! ;)

    The number in waitforgpu represents milliseconds. 10ms is nothing horrible in itself but there are 30 other aspects each adding 3ms here 0.5ms there etc.

    What strikes me as odd is your picture shows 50+ fps yet 9.0ms waitforgpu time!

    So you may still have a cpu limit causing possible delay spikes this causing the higher MSPF (milliseconds per frame.)

    An mspf of 20 isn't bad, it IS 50fps afterall! The math is: 1000 divided by mspf = framerate!
     
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  5. Kingkopa124

    Kingkopa124
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    I get 60fps just depends on the map but I get frame drops mainly when I load a map and first start driving around it goes away after I’ve been on the map for awhile I have an i5 6400 it’s not terrible but definitely showing it’s age just like the 950 lol
     
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  6. RobertGracie

    RobertGracie
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    I generally run max settings on everything but with only a couple of things tweaked and I have no signs of stuttering but I am running a 6GB 980Ti so I have enough horsepower to overcome most of my problems
     
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  7. Kingkopa124

    Kingkopa124
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    Crazy how the 980ti is still costly nowadays, what cpu are you rocking? And thank you for enlightening me On that
     
  8. RobertGracie

    RobertGracie
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    haha check my signature, but its a Intel Core i7-5960X :)
     
  9. fufsgfen

    fufsgfen
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    1000 / 52 = 19.23
    1000 / 19.23 = 52
    52 * 19.23 = 1000 if we ignore rounding issues.

    It is always locked together, I doubt very highgly that you can see any CPU performance limit from that number, you need to use performance monitoring tool for that.

    Wait for GPU is also around 0.4 in windowed mode for me, even there is no difference in fps between full screen and windowed mode with vsync enabled those numbers don't tell anything, same for fps limiter enabled.

    If GPU can finish frame in 2ms or so, there can be lots of GPU wait from vsync for example as with vsync on with 52fps you would be rendering 30fps in reality and that is quite long time between frames for CPU to finish the task and wait for next rendering need.
     
  10. loba04

    loba04
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    i have a gtx 950m, with 6 GB of vram, rocking a core I7 67000 HQ overclocked to 3.7 Ghz, with 8 GB of ram. i have no problems on the standard maps untill i get up to 3-4 vehicles but the mighty 5 years old dangerously overclocked laptop GPU studders a bit on unoptimized mod maps like sultan peak and advanced island.
     
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