reported FPS Lost after DCS 2.7.7.14727 patch

[Boosterdog]

Ive recently heard that staring at the winter solstace from inside a goats arse will recover the the lost fps and gain you 30 more. 

What is so hard about sticking to the subject of the original thread and providing ED with the files and logs they requesed?

[Miro]

@BIGNEWY @Lange_666, Lange has the best described decline in FPS, supported by tests, maybe you would ask him to volunteer for a beta tester in this case?

Edited November 5, 2021 by Miro

[Limaro]

I've rolled back stable to 2.7.6. and the framesrates are back to "normal".
Nvidia driver update did not make any differens.

@BIGNEWY I can offer you to make specific tests, or try different configurations. It's very reliable reproducable and I have both, Stable 2.7.6 and Beta 2.7.7 installed ATM.

[Песочек]

@BIGNEWY I have created fps comparison video that you can see the fps drop in last patches. I hope it help you to find the problem with low frame rate. On picture you can see the video settings that i have used in both tests. Sorry that video setting on Russian language, i dont know how to switch in to English.

Ka-50 fps drop.trk dcs.log DxDiag.txt

Edited November 5, 2021 by Песочек
Insert video

[Lange_666]

33 minutes ago, Песочек said:

@BIGNEWY I have created fps comparison video that you can see the fps drop in last patches. I hope it help you to find the problem with low frame rate. On picture you can see the video settings that i have used in both tests.

Just watched this, very good effort  but it seems your framerates are capped, they jump from 60 to 30 and back. The difference between stable 2.7.6 and OB 2.7.7 is exactly 30 FPS which proves my point.
Best is to let the FPS loose (no VSync, no FPS limiter) if you make a comparison and use MSI Afterburner or another overlay where you can easily change color and fontsize instead of the onboard FPS counter (which is enough but is very small and therefore difficult to read).

I would make one myself but i don't have the knowledge to make one and lack the time to do so.

Edited November 5, 2021 by Lange_666

[Limaro]

36 minutes ago, Песочек said:

@BIGNEWY I have created fps comparison video that you can see the fps drop in last patches. I hope it help you to find the problem with low frame rate. On picture you can see the video settings that i have used in both tests. Sorry that video setting on Russian language, i dont know how to switch in to English.

Ka-50 fps drop.trk 55.55 kB · 1 download dcs.log 43.54 kB · 1 download DxDiag.txt 113.21 kB · 1 download

 

You activated Vertical Sync. That means that before patch you were somewhere over 60 FPS, which is then capped to 60. After the back you are below, and then it's capped to 30. Thats of course extreme situation. It confirms the drop, but not the real quantity

[Boosterdog]

47 minutes ago, Limaro said:

I've rolled back stable to 2.7.6. and the framesrates are back to "normal".
Nvidia driver update did not make any differens.

@BIGNEWY I can offer you to make specific tests, or try different configurations. It's very reliable reproducable and I have both, Stable 2.7.6 and Beta 2.7.7 installed ATM.

@BIGNEWYsame here 

[BIGNEWY]

1 hour ago, Песочек said:

@BIGNEWY I have created fps comparison video that you can see the fps drop in last patches. I hope it help you to find the problem with low frame rate. On picture you can see the video settings that i have used in both tests. Sorry that video setting on Russian language, i dont know how to switch in to English.

Ka-50 fps drop.trk 55.55 kB · 2 downloads dcs.log 43.54 kB · 3 downloads DxDiag.txt 113.21 kB · 3 downloads

 

It does look strange, but again I am unable to reproduce. Are you capping your frames as suggested by Limaro? do you have it vsync'd or something in nvdia control panel or autoexec.cfg in your saved games?

Same track played back on my system with high settings well over 100 fps

 

[Dzsekeb]

18 minutes ago, BIGNEWY said:

Same track played back on my system with high settings well over 100 fps

 

Could there be any difference in fps stability if you run at your high settings vs. running at the settings from the track file ?

 

To clarify, it seems like there is no fps loss on your system with high settings between 2.7.6 and 2.7.7
Is the same true with the settings of the person who submitted the track file?

Edited November 5, 2021 by Dzsekeb

[Lange_666]

13 minutes ago, BIGNEWY said:

ISame track played back on my system with high settings well over 100 fps

 

I would like to see the same track played on stable 2.7.6 on your system so we have a comparison (and please prove it's 2.7.6 so it's not the last version which shows the same problem). You ask for comparisons and the lot from our side but your own data lacks the things you ask from us.

PS: I for one can't believe that none of the ED systems and none of the internal testers ever showed this problem and then moments after release the first post of degradation shows up. Why do i have the feeling that we have to suck up the loss?

[Hiob]

Is here anyone, who experienced FPS-drops with a more beefy 4K-Setup? If someone could provide Data and a Track, I could test it on my system and see if it behaves the same.

As mentioned, my own reference-tracks show no difference at all between before and after the patch.

[Lange_666]

Just now, Hiob said:

As mentioned, my own reference-tracks show no difference at all between before and after the patch.

You talk about what versions now? What is before and after?

[Hiob]

52 minutes ago, Lange_666 said:

You talk about what versions now? What is before and after?

Look at the topic of the thread.....

But to give a decent answer: Before = 2.7.6.13436, After 2.7.7.xxxxx

Edited November 5, 2021 by Hiob

[Песочек]

3 минуты назад, BIGNEWY сказал:

It does look strange, but again I am unable to reproduce. Are you capping your frames as suggested by Limaro? do you have it vsync'd or something in nvdia control panel or autoexec.cfg in your saved games?

Same track played back on my system with high settings well over 100 fps

 

I have used only V-sync in game video setting. Before every test i have deleted Saved Games folder.

My procedure was follows:
1. Delete all mods from DCS

2. Repair game by DCS updater

3. Delete DCS Saved Games

4. Run DCS 2.7.7 and create track

5. Copy this track to another folder.

6. Downgrage DCS from 2.7.7 to 2.7.6 by DCS updater.

7. Delete DCS Saved Games

8. Run DCS 2.7.6

9. Set the video setting. The game have restarted. 

10. After restart the game i have exit.

11. Put my track from another folder to DCS Saved Games.

12. Run the game and cap the video by bandicam. Exit game.

13. Upgrade game from 2.7.6. to 2.7.7. by DCS updater.

14. Delete Saved Games.

15. Run the DCS 2.7.7. Set the video setting. The game have restarted.

16. After restart the game i have exit.

17. Put my track video to DCS Saved Games.

18. Run the game again and cap video by bandicam. Exit game

19. Create this comparison video.

[BIGNEWY]

You have certainly tried everything, I have tested with Vsync enabled and get a solid 60fps in my test, at the moment it remains a mystery why this is happening for some and not others.  

[Limaro]

4 minutes ago, BIGNEWY said:

You have certainly tried everything, I have tested with Vsync enabled and get a solid 60fps in my test, at the moment it remains a mystery why this is happening for some and not others.  

And you're running the tracks always twice, once for 2.7.6 and once for 2.7.7? (just for clearification)

BTW: I dont even need any tracks at all. Best compare results I get just be creating a empty mission in caucasus or any other map, and then just start (no plane or anything). Camera starts over Anapa and I already have 145 vs 119 FPS

Edited November 5, 2021 by Limaro

[NukeBear01]

46 minutes ago, BIGNEWY said:

Same track played back on my system with high settings well over 100 fps

Maybe you can try to compare the performance difference in 4k resolution or vr. Considering your pc configuration and  cpu optimization of DCS, it may not show a significant difference in a 1080p or 2k environment.

Edited November 5, 2021 by NukeBear01

[Hiob]

52 minutes ago, Песочек said:

I have used only V-sync in game video setting. Before every test i have deleted Saved Games folder.

 

You have probably already figured, but there is really no point in doing any performance testing with activated v-sync. V-sync heavily messes with your FPS, most prominent in that it will fall back to the next smallest increment of 30 if it can't reach the next by even one FPS. In a nutshell, you can't see your real baseline and past a treshold the decline is always a minimum of 30 FPS.

[ShaunX]

1 hour ago, Lange_666 said:

I would like to see the same track played on stable 2.7.6 on your system so we have a comparison (and please prove it's 2.7.6 so it's not the last version which shows the same problem). You ask for comparisons and the lot from our side but your own data lacks the things you ask from us.

EXACTLY !!!

The entire premise of this thread is that users are experiencing performance loss AS COMPARED WITH THE PREVIOUS VERSION.

Therefore, The ONLY way to measure that is to run identical tests, i.e. track files, in both versions and compare results. Anything else is completely pointless and proves nothing.

(Don't hold your breath though )

1 hour ago, Lange_666 said:

PS: I for one can't believe that none of the ED systems and none of the internal testers ever showed this problem and then moments after release the first post of degradation shows up. Why do i have the feeling that we have to suck up the loss?

..I for two

[speed-of-heat]

i'd have to agree the issue is not that 2.7.7 i s performing worse or irregularly in isolation rather it perfoms less well compared to 2.7.n and of course compared to 2.5.6

[Boosterdog]

5 minutes ago, speed-of-heat said:

i'd have to agree the issue is not that 2.7.7 i s performing worse or irregularly in isolation rather it perfoms less well compared to 2.7.n and of course compared to 2.5.6

....and without an acknowledged or understood reason.

[nikita_nomad]

Same for me. And on my potato rig it sits just about at 30 now with medium/low settings..I wonder if that's a future of dcs, just degrading a bit with each release..not everyone can get 2080, 3080/90 etc. I am planing to upgrade, but already thinking that my long waited upgrade will only get me a few extra frames at best..not to mention years from now..:/

Sent from my SM-T870 using Tapatalk

[BIGNEWY]

Of course we have been comparing to previous versions, as mentioned we have not seen what some of you have been seeing. 

We are investigating, but there is no obvious reason for these FPS anomalies.

At this point this thread is not useful, if you are having a problem please make a new thread for your specific problem, with the data that we need to check it. 

Track replay, dcs.log, dxdiag we will continue to compare and test on our systems. 
Please only post if you have data to share. 

Thanks

[Miro]

@BIGNEWY Why not use the system and hardware of someone with a problem? Such a temporary volunteer beta tester?

[BIGNEWY]

1 minute ago, Miro said:

@BIGNEWY Why not use the system and hardware of someone with a problem? Such a temporary volunteer beta tester?

The team have lower end machines also and have been checking.