1 sec freeze spike on Final

Bug Reporting Hub Resolved
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1

Have you disabled/removed all your mods and add-ons?

No.

Are you using Developer Mode or made changes in it?

I was on Dev mod to get FPS reading

Are you using DX11 or DX12?

DX11

Are you using DLSS?

no TAA

Brief description of the issue:

Huge Mainthread / Manipulator spikes on final. froze the game for at least 1 sec before resuming.

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

Detailed steps to reproduce the issue encountered:

Any flight longer than 1 hour. This was from CYYC to KBOI. I had good fps throughout the flight. It always 5NM from any airport, you will get a huge spike where the mainthread is overloaded trying to load all the airport object and it freezes the sim. After it resume, I lost about 10fps until I landed

PC specs and peripheral set up:

5800X3D, 3080Ti, 32GB RAM

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Do you have the same issue if you follow the OPā€™s steps to reproduce it?

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

If relevant, provide additional screenshots/video:

2

Yes i think they still have the issue where it will load/unload objects when you panning

3

i had a freeze in flight - just after take off and it stuck for about 15/20 seconds maybe. I thought it was going to crash. Then it just carried on. May or may not be the same thing, but adding my commentā€¦

17-02-24 : update, have had several flights now and have had three significant freezes in flight. The game stops for about 10 to 20 seonds, The sound carries on. Looking at system monitor - ecerything appears to have stopped,no spikes.

26-02-24 flight today and had about 20/30 second freeze. Sound carried on. Then just carried on.

04-04-24 - still get the occasional complete freeze for 15 to 20 seconds. As above.

3 Likes
4

The ā€˜silver liningā€™ in that particular cloud is that freezes, long stutters etc made me spend time optimising my CPU, GPU loads, framerates and so on.
But even with a sim now running really really well I still get anything from a stutter to a slide show usually on approach to an airport but smetimes just at some invisible scenery boundary- much less than before but still unacceptable for a modern PC sim.

1 Like
5

I only had time to test out once since the update came out. Did a flight that lasted about 15 minutes. I had a freeze of 10+ seconds 3 times in that period. Once on initial taxi out, once in the air, and once on final.

Very annoying.

2 Likes
6

Just wanted to add a screenshot of the issue

Spike on finals
Spike on finals1920Ɨ804 233 KB

1 Like
7

I just want to add this video to show the issue

1 Like
8

A timestamp of exactly when it happens in the video would be useful.

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9

I see the same thing happening at every airport I land at. Iā€™m not flying in dev mode, but Iā€™m using DX12 and DLSS (just updated to the latest version).

3 Likes
10

Start at 2:12.

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11

Ooh. Thatā€™s nasty!

2 Likes
12

Are these default airports that you approach or you have them as addon in community folder? That seems like itā€™s trying to load the airport textures. Could be related to your TLOD and LOD. If you could share your settings?

13

I bet this is caused by the old autogen refresh step at the airport boundaries during approach, as it usually happens around those 5 nm away from runway. In the past (including current SU14) that results in autogen vanishing for less than 1 second and spawning again from scratch inside those areas only, so not beyond them.

The whole airport itself should be already cached more than 5 nm away from runway because you can see tower and runway lights before the freeze happens in your video so I donĀ“t think the airport is the one that causes the issue. On the other hand I donĀ“t see any new objects being created anywehere so probably autogen ones are simply reloaded again in one go, which could explain the sudden workload increase and the freeze.

I never understood the reason behind that extra autogen refresh step. It shouldnĀ“t be required as scenery was already cached and displayed prior to that step.

Cheers

3 Likes
14

Iā€™ve tried adjusting those settings, and it hasnā€™t seemed to have any effect. Iā€™ve also tried lowering the ground traffic settings, and that hasnā€™t made any difference either. I donā€™t have any addon airports in my community folderā€¦ those Iā€™m landing at are all default.

15

Same here. I assess it as a feature.

2 Likes
16

No one would believe me if I say that I didnā€™t even have a single smooth landing after the sim update 10 due to this darn bug despite having a decent gaming rig.
I really miss the sim update 9 where I had the best sim smoothness.
looking forward to more of the beta builds but Iā€™m already sure those will get me nowhere just like the previous sim updates.

2 Likes
17

Default airpot.

18

Same here, it seems worse with the latest beta and the load spike seems to happen further out from the airport.

1 Like
19

I think Asobo is at the point t hat this performance related issue are going to be fix in FS2024 first

20

Iā€™ve been having this type of freeze (a.k.a. ā€œstutterā€) when approaching large airports since pre-WU16, as reported here and here.

Turning off the Rolling Cache has significantly reduced stuttering on my PC in build 1.37.5.0 and eliminated freezes / stutters on final approach (so far!) as reported here.

2 Likes