Extreme CPU usage (performance hit) during cruise (+30000ft) altitude in EU region

User Support Hub Install, Performance & Graphics
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1

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Are you using Developer Mode or made changes in it?

No

Have you disabled/removed all your mods and addons? If the issue still occurs with no mods and add-ons, please continue to report your issue. If not, please move this post to the Community Support section.

Yes, removed all mods, city updates and disabled photogrammetry

Brief description of the issue:

At cruise altitude (above 30000ft) over Western Europe, especially NL/DE/UK, I encounter performance at cruise altitude. CPU usage increases drasticlly, FPS drops are noticeable. When flying in other areas of the world, for example Asia or even USA I don’t have this problem.
Switching between DX11 & DX12, clearing caches, rolling cache on/off, fully reinstalled windows didn’t help.
As soon as I start my descend, this issue stops.

Provide Screenshot(s)/video(s) of the issue encountered:

Detailed steps to reproduce the issue encountered:

Start a flight from EHAM or EDDK and fly east, when reaching 30000ft it starts.

Many issues may be due to an outdated graphics card. Please state your Graphics Card Driver Manufacturer (NVIDIA, Intel, AMD) and Version (Learn how to find your current graphics card driver version):

NVIDIA 551.86

PC specs and/or peripheral set up if relevant:

7800X3D + Liquid Freezer III 360, X670E, 64gb 6000 CL30, 3080TI, 1440p,

Build Version # when you first started experiencing this issue:

1.31.22.0 (SU12)

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Do you have the same issue if you follow the OP’s steps to reproduce it?

Provide extra information to complete the original description of the issue:

If relevant, provide additional screenshots/video:

2

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3

How are you running SU12?
The current version is SU14, 1.36.2.0
Not having all the updates will cause issues.

4

Hi, the question in the form is ‘when’ you first started experiencing this issue… that was SU12.

I’m currently on SU15 beta 1.37.9.0

2 Likes
6

Does this happen with any aircraft or a specific one? Have you tried with one of the default aircraft?

7

I’m so used to people entering a bug with the current version, I forgot all about that.
Thanks for the reminder!

1 Like
8

Any aircraft unfortunately. Not a Cessna of course :wink:

9

Do you have the same issue if you follow the OP’s steps to reproduce it?

Yes same issue
Provide extra information to complete the original description of the issue:
Performance is better at lower altitude and seems to deteriorate above FL300. Reducing TLOD helps but the spikes are still there.
5800X3D/4090/32Gb

If relevant, provide additional screenshots/video:

10

Do you have the same issue if you follow the OP’s steps to reproduce it?

Yes

Provide extra information to complete the original description of the issue:

Mostly over central western Europe above FL250 or so

If relevant, provide additional screenshots/video:

11

Same here. All planes. Very heavy cpu loads on cruise altitude.

1 Like
12

Do you have the same issue if you follow the OP’s steps to reproduce it?

No

Provide extra information to complete the original description of the issue:

Flew the Daher TBM 930 from Cologne (EDDK) on a 22-minute flight, spiraling up to 35,000 feet over the airport. The difference between the average Total CPU Usage during the climb portion of the flight to 30,000 feet & the cruise portion of the flight between 30-35,000 feet was only 1.6%. The median difference was 0.8%.
Data was collected using HWinfo64, with a polling period of 1000 ms.
…
Partial Specs & settings:
Build: SU15B v1.37.11.0
3rd-Party Addons: None, Community Addons: None
Flight configuration: Multiplayer: All Players. Traffic: Live, Weather: Live
i7-12700K (No overclocking), 32 GB 5200 MHz DDR5 CL40, Arc 770 (16GB, v31.0.101.5333).
Graphics Tab: TAA, Render resolution 1700x960 @ 125, AMD Fidelity - 150, VSync - On, FRL - 100% MRR (60 Hz), HDR10 - Off, DX12B, TLOD @ 250, OLD @ 200, Motion Blur - Off, Other settings - all Ultra
Traffic Tab: Aircraft Traffic Type - Real-Time Online, Slider Settings - All 100%, Generics (AI, MP) - Both Off, Show MP in Vicinity - On, Traffic Variety - Ultra
Data Tab: Data Connection: All six options - On, Data Limit - Off, Bandwidth - Unlimited, Rolling Cache - Off
Developers Tab: Developer Mode - Off
MSFS Version: MS-Store, Standard, plus All WUs and City Updates.

If relevant, provide additional screenshots/video:

13

Do you have the same issue if you follow the OP’s steps to reproduce it?

yes exactly the same. Just after take-off you see the spikes in temp increasing to an absurd temperature. This does not stop till you are in the approach under FL2050 to 200 ish.

Provide extra information to complete the original description of the issue:

Cinabench stress test shows max temp of 71 degrees on my CPU. But the spike in temps during cruise goes to 80 degrees. it happen especially when you pan, but also when you dont pan it will happen every minute or so. in the US there is not a problem it only happen above DE/NL/BE/FR/UK. rest of Europe i still need to test. First i thought it was the clouds, but also on clear day preset it happen, as well as when i am not near any 3th party airport in cruise.
7800X3D (undervolted to coop with MSFS high temp spikes), 4070 TI Super, 32GB Ram

If relevant, provide additional screenshots/video:

WhatsApp Image 2024-04-12 at 08.40.02
WhatsApp Image 2024-04-12 at 08.40.021600×604 97.6 KB

14

Do you have the same issue if you follow the OP’s steps to reproduce it?

Yes

Provide extra information to complete the original description of the issue:

See previous post here

If relevant, provide additional screenshots/video:

1 Like
15

Same issue here I9 13900k with RTX4090.

No Overclocking or XMP activated.

This issue is only in northern Europe France,Benelux,Dach, UK in Spain i have stable 22% CPU usage in EDDF i get spikes to 70% not inly in flight, also if i loading the Sim, at 70% Loadstatus the CPU Usage rises to 60/70% .

Whats going on here?

1 Like
16

I’ve seen the same thing over Germany. Big CPU usage/temp spike.

I haven’t flown there lately, but I’m wondering if it has to do with LOD settings (lots of terrain rendering at high altitude) and maybe more photogrammetry in that area. If I fly there again this week and it continues I’m going to lower both LOD settings to a minimum, test, then turn PG off and test again.

2 Likes
17

Interesting, I have been flying around Germany for the first time (though mainly low and slow) and twice now my PC has taken a fairly severe reaction.

Both screens go blank, GPU fans spin up to high RPM and the system requires a button push to restart.

Windows error (43) suggests GPU device driver (have updated that), have run diagnostics and stress tests and nothing reported.

Going to check and reseat hardware devices and will try flying in a different area to see if that recreates the problem.

18

Same for me over Italy (and EU).

2 Likes
19

Same thing is happening with SU15 so not fixed yet.

1 Like
20

Do you have the same issue if you follow the OP’s steps to reproduce it?

Provide extra information to complete the original description of the issue:

Same problem over Italy using PMDG B738, spikes of temp over 84°C every some minutes on Ryzen 7 7800X3D 64GB DDR5 6000 CL30 Geforce 4060Ti 16GB Navis F280 liquid cooler

If relevant, provide additional screenshots/video:

1 Like
21

I too am having the exact same problem. It does not appear on the ground and only appears during the ascend-descent cruise. I’m always nervous about CPU usage and temperature while flying, and it only appears when I’m flying in Europe. This phenomenon has appeared since around SU14. Before, I was dissatisfied with the CPU not working, but now it gets too hot. I’m worried. I’m still flying over Italy and the CPU temperature is over 80 degrees. This is clearly a problem in Asobo. It didn’t happen before and there is no problem with other games.