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P3D v4.1 CPU usage with 4790k

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Hello,

Yes I know, another AffinityMask Thread, but I'm really running out of ideas..

I'm using a 4790k (HT off) and have currently the Problem that Core 1 only has a usage of about 50%. Core 2 and 3 have a few drops as you can see on the screenshot but are basically doing their job. I already tried tons of AffinityMask Configurations, but they only made things worse or moved this behaviour to another Core.

Below is a Screenshot of P3D v4.1 running without any AffinityMask configured.

Capture.png

Is this behaviour "normal" or does anyone know how I can max out all Cores?

Thank you in Advance!

Yes, that distribution of workload looks normal.  I think video rendering threads run on the second core (core 1), core 0 is the main simulation core, and cores 2-3 are predominantly texture loading threads.  Also, P3Dv4 seems to use HT to more beneficial effect than its predecessor versions...on my 7700K I have HT on with an AM of 245 (11110101)

Overclocking that 4790K would help considerably.  I still have a 4790K machine that I used for simming (now relegated to FPS games and such), and it overclocked easily to 4.8GHz.  I've found that jacking the CPU up as high as possible, in combination with moving CPU-intensive sliders (autogen, scenery complexity, AI traffic etc) back so that the core 0 process sits at 90% or less really helps smooth things out.  With CPU utilization pegged at 100%, there's no headroom to absorb spikes in workload without stutters or drops in FPS.  I also run with vsync on and a 30Hz 4K TV, so the CPU isn't loaded up attempting to produce frames at a rate above the refresh rate.

Regards

 

Bob Scott | President and CEO, AVSIM Inc
ATP Gulfstream II-III-IV-V

Sys1 (MSFS20+24/XPlane12+11): AMD 9800X3D, water 2x240mm, MSI MPG X670E Carbon, 64GB GSkill 6000/30, nVidia RTX4090FE
Alienware AW3821DW 38" 21:9 GSync, 2x4TB Crucial T705 PCIe5 + 2x2TB Samsung 990 SSD, EVGA 1000P2 PSU, 12.9" iPad Pro
Thrustmaster TCA Boeing Yoke, TCA Airbus Sidestick, Twin TCA Airbus Throttle quads, PFC Cirrus Pedals, Coolermaster HAF932 case

Sys2 (P3Dv5/v4): i9-13900KS, water 2x360mm, ASUS Z790 Hero, 32GB GSkill 7800MHz CAS36, ASUS RTX4090
Samsung 55" JS8500 4K TV@60Hz,
3x 2TB WD SN850X 1x 4TB Crucial P3 M.2 NVME SSD, EVGA 1600T2 PSU
Fiber link to Yamaha RX-V467 Home Theater Receiver, Polk/Klipsch 6" bookshelf speakers, Polk 12" subwoofer, 12.9" iPad Pro
PFC yoke/throttle quad/pedals with custom Hall sensor retrofit, Thermaltake View 71 case, Stream Deck XL button box

Sys3 (DCS/P3Dv4/ATS/ETS): AMD 7800X3D, MSI MPG X870E Carbon, Noctua NH-D15S, 64GB GSkill 6000/30, EVGA RTX3090
Alienware AW3420DW 34" 21:9 GSync, Corsair HX1000i PSU, 4TB Crucial T705 PCIe5 + 2TB Samsung 970Evo Plus,
TM TCA Officer Pack
, Saitek combat pedals, TM Warthog, TM RS300 FF wheel/pedals, Coolermaster HAF XB case

Looks normal to me when running at locked FPS in P3D settings. Core 0 almost all the time at 100%.  If I set it to unlimited FPS core 0 is no more at 100% and more loads are on other cores.

Mike

Mike Lab

WIN10 / I7-6700K HT ON / GTX980 / 16 GB RAM / 3 x SAMSUNG EVO 1TB SSD / 1 X WD BLACK 2TB HDD / 32"  60hz Monitor @ 2560x1440 / P3Dv4.4  No AM, Locked to 59 FPS, VSync ON, Triple buffering enabled

Process Lasso used to unload all other applications than P3D running on core 0

  • Author

Thank you very much for your answers

@Mikelab6 FPS are currently set to unlimited. If I set them to e.g. 30, I get massive FPS Drops

@w6kd My current Setup unfortunately is not really overclockable. I'm currently saving to upgrade the MB / CPU and RAM.

1 minute ago, eXpress48 said:

My current Setup unfortunately is not really overclockable. I'm currently saving to upgrade the MB / CPU and RAM.

Not sure what benefit HT off gives you with the CPU running at stock speed. 

If you get a chance, try HT on with AM=245 or 253.  It most likely won't make a difference in frame rates, but may well smooth out texture loading.  Won't cost anything but a few minutes of your time...

Regards

Bob Scott | President and CEO, AVSIM Inc
ATP Gulfstream II-III-IV-V

Sys1 (MSFS20+24/XPlane12+11): AMD 9800X3D, water 2x240mm, MSI MPG X670E Carbon, 64GB GSkill 6000/30, nVidia RTX4090FE
Alienware AW3821DW 38" 21:9 GSync, 2x4TB Crucial T705 PCIe5 + 2x2TB Samsung 990 SSD, EVGA 1000P2 PSU, 12.9" iPad Pro
Thrustmaster TCA Boeing Yoke, TCA Airbus Sidestick, Twin TCA Airbus Throttle quads, PFC Cirrus Pedals, Coolermaster HAF932 case

Sys2 (P3Dv5/v4): i9-13900KS, water 2x360mm, ASUS Z790 Hero, 32GB GSkill 7800MHz CAS36, ASUS RTX4090
Samsung 55" JS8500 4K TV@60Hz,
3x 2TB WD SN850X 1x 4TB Crucial P3 M.2 NVME SSD, EVGA 1600T2 PSU
Fiber link to Yamaha RX-V467 Home Theater Receiver, Polk/Klipsch 6" bookshelf speakers, Polk 12" subwoofer, 12.9" iPad Pro
PFC yoke/throttle quad/pedals with custom Hall sensor retrofit, Thermaltake View 71 case, Stream Deck XL button box

Sys3 (DCS/P3Dv4/ATS/ETS): AMD 7800X3D, MSI MPG X870E Carbon, Noctua NH-D15S, 64GB GSkill 6000/30, EVGA RTX3090
Alienware AW3420DW 34" 21:9 GSync, Corsair HX1000i PSU, 4TB Crucial T705 PCIe5 + 2TB Samsung 970Evo Plus,
TM TCA Officer Pack
, Saitek combat pedals, TM Warthog, TM RS300 FF wheel/pedals, Coolermaster HAF XB case

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