![]() ![]() Is this also happening on a clean installation with default aircraft?” What add-ons do you have installed and what aircraft are you flying when this occurs? What are your departure and arrival locations? “For those experiencing this issue what locations are you seeing performance drops? Keeping an eye on the information Rob ask for:Īny additional details will help us find the root cause of the problem including departure location, add-ons installed, aircraft used, and settings.” Possibly someone reading this topic could do the test. If anyone has a flight they want tested then post the flight steup information. I'm no longer using an AF mask with it, only the bitsum powerplan and some other minor stuff. CPU0 isn't used as much any longer since I have moved what I can off, and process lasso is probably no longer needed. You can move things off of CPU0 now in 5.3, if you look above your post my prepar3d.cfg shows that I am using CPU10, CPU12, and CPU14 on my 9900KF. PL will warn you if you are trying to change a service that needs to be left as it is for the Windows services. ![]() You can also do this for some other apps such as Microsoft Edge. This should help improve P3D performance and reduce stuttering. On my 8700k with 6 physical cores and 12 logical cores P3D uses 1-5 so I set ActiveSky, ChasePlane, Navigraph etc. Check the tick boxes for cores other than the ones Prepar3D.exe is using and uncheck the ones P3D uses. Right click on non-Windows processes and set CPU Affinity - Always - Select CPU Affinity. When PL is running you can see all the processes and for those running it tells you the CPU usage and the average CPU usage. Download PL and run the installer, accept all the initial defaults. This is a free download and relatively easy to configure. If this doesn't solve the stutters, or you already have HT on in BIOS, or you want to improve performance, you can move the threads for other apps away from the cores that P3D uses with Process Lasso ('PL'). If you are not using Hyperthreading ('HT'), turn this on in BIOS (if you have this option on your processor) and see if that helps, accept the default AffinityMask when you start P3D. Check in task manager on the performance tab if CPU0 is at 100% all of the time. ![]() I think the stuttering is caused by an overloaded core LP0. ![]()
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