Is this normal CPU usage on GUI page (before flight)?

[slughead]

Running the latest beta multi-threaded exe. I notice at least one thread/core is running 100% for DCS. That's pretty heavy usage for not a lot going on. Is this normal?null

[BIGNEWY]

please include your dcs log and dxdiag thank you 

[slughead]

Files are attached as requested.

dcs.logDxDiag.txt

Edited March 11, 2023 by slughead

[MacEwan]

Don't want to hijack the thread but I have almost exactly the same issue.

In case it may help, dcs.log and dxdiag.txt attached

DxDiag.txt dcs.log

[BIGNEWY]

please if you are using NVIDIA try going to the control panel and turn on threaded optimisation 

[Rapierarch]

2 hours ago, BIGNEWY said:

please if you are using NVIDIA try going to the control panel and turn on threaded optimisation 

It had no effect in my trial. It was always on btw. Tried setting it auto and off but it did not matter. That one core which happens to be the golden core in amd is loaded 100% when the DCS loads. No matter if you are in ME, main menu, or in flight it keeps at 100%. Some times another core in my other ccd starts behaving like that but the very first core which starts being loaded 100% when DCS loads stays at 100%. 

Many people seeing it if I look at forums. 

PS: System 3950x 32gb 4090 quest2. Nothing else is runnning. No discord, no srs, no browsers,  no other stuff. Just standalone DCS. Vsync is off nvidia limiter, background limiter is off graphics.lua max fps 180 

[MacEwan]

I did not see any change in behaviour when testing this.

[slughead]

8 hours ago, BIGNEWY said:

please if you are using NVIDIA try going to the control panel and turn on threaded optimisation 

No difference with it set to On. Core 0 is still maxed out on the main GUI page. This screams of a message event loop running round without waiting for an event to occur.

[slughead]

@BIGNEWYI have found that if I set my headset refresh rate to 60Hz (was 90Hz), then the CPU load drops below 100%. Hope that helps.

Edited March 28, 2023 by slughead

[kefor]

+1 on orginal post

 

Edited March 28, 2023 by kefor

[BIGNEWY]

8 hours ago, slughead said:

@BIGNEWYI have found that if I set my headset refresh rate to 60Hz (was 90Hz), then the CPU load drops below 100%. Hope that helps.

 

interesting, I will try it out. I always had issues using 60hz in the past. 

[Lee Dove]

I have been running at 120hz which runs fine in ST with a solid 60fps. If I drop to 72hz in MT I get 36fps (as expected) but even though the main thread is still maxed it copes and at least is usable.. Something is overloading the Main  thread in VR for me which does not happen in the ST version with the exact same system.

 

CPU 0 (main thread?) still maxed out at 72Hz. On ST cpu0 never above 50%.

 

Edited March 29, 2023 by Lee Dove