1. Do you need support for Assetto Corsa Competizione? Please use the proper forum below and ALWAYS zip and attach the WHOLE "Logs" folder in your c:\users\*youruser*\AppData\Local\AC2\Saved. The "AppData" folder is hidden by default, check "Hidden items" in your Windows view properties. If you report a crash, ALWAYS zip and attach the WHOLE "Crashes" folder in the same directory.
  2. FOR ASSETTO CORSA COMPETIZIONE: If you report issues with saved games, please always zip and attach your entire User/Documents/Assetto Corsa Competizione/Savegame folder!
  3. If your game executable is missing, please add your entire Steam directory to the exceptions in your antivirus software, then run a Steam integrity check or reinstall the game altogether.

CPU Usage Warning

Discussion in 'ACC Hardware Discussions' started by Eric D, Mar 8, 2019.

  1. LeDude83

    LeDude83 Alien

    Maxing out RAM speed of even buying faster RAM will probably help. 8GB is enough, though.
  2. anthonylroy

    anthonylroy Simracer

    KUNOS : Could you not use the GPU to perform physics Calculations rather than the CPU, for instance using the internal cpu graphics processor on many cpus ?? that is usually redundant, when an additional card has been added, or even allow the addition of a cheaper GPU just for physics calculations ?
  3. Ochilbaz

    Ochilbaz Gamer

    That would be great

    Many thanks
  4. Ochilbaz

    Ochilbaz Gamer

    Another question

    When I run a 10 car race I pretty much get 60fps (only dips to 58/59 for milliseconds) but my FPS counter never goes above 60. I have in game frame limit off but is there a steam setting somewhere that is limiting the FPS? I have no start up commands set in steam that I can see

    Thanks in advance
  5. tjr

    tjr Hardcore Simmer

    Apologies for maybe a silly question, but is you monitor 60Htz? That will set the limit. Alternatively it could be limited in Nvidia's software on your machine.
  6. Arpadian

    Arpadian Racer

    Disable Vsync from in game
    and if you have tearing problem use Fast Vsync from Nvidia control panel
    LATE4APEX likes this.
  7. Ochilbaz

    Ochilbaz Gamer

    Thanks for replies I will try that
    Arpadian likes this.
  8. I don't think different RAM helps at all.
    Last year before changing CPU since I had spare RAM i tried to increase to 16GB with better clocks and timing. Not improved at all

    And I know the wallet pain changing the whole CPU RAM and mobo, but it was definitely worth after 9 years :D
  9. Oblit0r

    Oblit0r Hardcore Simmer

    23 AI, 98% aggro and ability.
    Don't pay much attention to FPS on the first lap, framerate is pretty low because the AI is cramped up together. Will increase lap 2-ish, when AI spreads out.

    Had to sacrifice some settings to maintain a 60/70+ framerate, but I'm quite happy with the result. Pretty sure you can increase a lot of settings, my videocard only has 2 gigs of VRAM.
    I will very occasionally get the CPU usage warning (although it's not my CPU that's at 99%, but my GPU).
    Lost a couple of frames due to recording. Also keep in mind that quality on YouTube is a little bit worse than when playing the game.
    Fremen_78 likes this.
  10. Raklödder

    Raklödder Simracer

    @Akbalder faster RAM won't do you much if you're still being bottlenecked by your CPU, but in the meantime (while we wait) try lowering your mirror settings and AI count.
  11. Ochilbaz

    Ochilbaz Gamer

    Many thanks for doing this. Looks good. I will try tomorrow evening

    Thanks again
    Oblit0r likes this.
  12. LeDude83

    LeDude83 Alien

    Yes, it does - RAM speed in ACC makes a big difference. @f_deutsch showed it on an aged system (i5 2500 DDR3) and I reproduced it on a fairly modern system (i7 7600k DDR4).

    You can read it up on this forum, I posted the link earlier in this thread.
  13. LeDude83

    LeDude83 Alien

    Why do you just say that? Any sources?

    IMO The RAM/CPU can be considered as a unit. When you increase the RAM speed, the unit will bottleneck less. So what you say is wrong.

    I'm not just saying that - I actually tested it in ACC and I'm referring to those results, many times. So if you disagree, you should consider running some tests of your own instead of just claiming it.
    f_deutsch likes this.
  14. Considering a ~5% gain in SOME scenarios is in fact a better results. But a gain of 1 FPS in the min fps in general use it is not an improvement at all
    Since you already did a good job testing it I don't need to refute you with others, I only had to read your results to have a confirmation

    Should I advise a 8 years old CPU user to improve RAM size and clock?
    I'll answer yes, if a friend of their has a RAM leftover after changing component for FREE
    Having to spend money for that? Hell NO
  15. LeDude83

    LeDude83 Alien

    First, the min. value isn't really the proper one to look for IMO but the AVG.

    Second, if RAM upgrade is worth it depends entirely on how much his system will benefit from that change - you can't take my results and just copy/paste the numbers.

    Instead of doing such "crystal ball assessment", the proper way to go would be for that user to downclock the RAM and see how much the performance depreciates. If he then decides that an upgrade might be worth a try, he could order 8 GB of very quick DDR3 RAM, which in my country costs about 50 €. At least here, it's no problem to return RAM after trying it so it's an investigation well worth the try.
    Put those 50 € into relation with an entire system upgrade of at least 500 €.

    People just need to learn how to properly investigate and that investigation needs to take place directly on the target system. Results from other systems can give indication but shouldn't be used for black/white statements that, sadly, are so very popular.
    f_deutsch likes this.
  16. flihp

    flihp Racer

    seeing the message as well, not too frequent but enough to distract, so i decided to run afterburner and recorded it and then screenshot when it happens, my cpu usage gets to around 70% but still get this message., the game runs fine for me with 23AI at the moment.
    Raklödder likes this.
  17. Pulley

    Pulley Simracer

    I see it flashing all the time (Single Screen, have tried in VR but can't see it at all) but my CPU usage is nowhere near 100% and the each individual Core is nowhere near 100%, I'm not entirely sure why it Flashes then? Gameplay is smooth and good (Single Screen), no AI lagging or anything, it's more of a distraction so I'm guessing it's not working properly just yet...or if it is I hope there's a way to Turn Off the Warning in future!
    alec benfield and tositatu like this.
  18. RWa

    RWa Racer

    I have this cpu warning as well. But this is only after update to version 0.6.2 or 0.6.3. I had this not before with my current settings and number of AI cars (19 AI + me + 20 in total) Please have a look at my specs. Is my cpu the bottle neck? Yesterday it was there and later that day it was gone. Today it is very annoying. It is there very race.....grrrrrrr. I created this video yesterday and all went fine but now it is unplayable.

  19. LeDude83

    LeDude83 Alien

    Hard to say if your CPU is bottleneck...it's a decent CPU and IMO should run ACC, well. "Well" is a matter of perspective: 19 AI isn't exactly peanuts. I get the warning occasionally starting from 21 AI.

    I just think this message comes too soon?!? AFAIK it's tied to the PHY_LATE parameter and maybe more entries than now can be allowed before message pops up. Apparently, the sim seems to be running alright although the warning shows.
Similar Threads
Forum Title Date
ACC Troubleshooting CPU usage warning at Paul Ricard pits Sep 29, 2019
ACC Multiplayer Dedicated Server - Excessive CPU Usage (stable 1.0.7) Aug 9, 2019
Troubleshooting - Workarounds Abnormally high CPU usage Jul 15, 2019
ACC General Discussions Optimisation for less CPU usage! Jun 4, 2019
ACC Troubleshooting Huge FPS drops and CPU usage warning Apr 4, 2019
ACC Multiplayer CPU usage server insane in 0.6 version (loop?) Mar 4, 2019
ACC Troubleshooting Very high CPU usage in Multiplayer Jan 21, 2019
Troubleshooting - Workarounds Low FPS / High Main_T with low CPU Usage Jan 14, 2019
Troubleshooting - Workarounds weirdly low cpu and gpu usage Jan 7, 2019
ACC Graphics - Tracks and Cars Low GPU and CPU usage on lower settings Oct 29, 2018
Troubleshooting - Workarounds Low CPU and GPU usage May 7, 2018
Troubleshooting - Workarounds Fps low, cpu gpu usage low Jan 4, 2018
Troubleshooting - Workarounds Online CPU OCCUPANCY>99%, while CPU usage is around 30% Dec 23, 2017
Troubleshooting - Workarounds Low performance with low usage CPU and GPU Nov 29, 2017
Troubleshooting - Workarounds Low FPS while low CPU and GPU Usage Nov 27, 2017

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice