Performance regression with OBS

[Aceitunator]

I'm not sure if this started with 32.0.101.6739 (i didnt even open OBS when I had these drivers installed so i can't tell) or 32.0.101.6790 drivers, but there's a performance regression while using OBS. Before I used to limit the FPS a bit to mitigate stuttering and / or encode overloads (a bad driver scheduler?) due to competition for GPU usage between OBS and the game. Now the stuttering issue is gone when keeping the FPS limit as disabled, but there's a brutal FPS loss while the GPU remains underutilized. I attached a video that shows the issue.

Currently Im using 32.0.101.6790 drivers + an up to date Windows 11 23H2 (22631.5189) installation.

PC specs:
i7-8700K at 4.9 GHz (5.1 GHz 1-core, 5GHz 4-core turboboost) + 4.6 GHz uncore.
999 watts as PL1. 0x6E microcode. meltdown / spectre patches disabled in order to squeeze more performance.

4x16 GB 3400 MHz CL14

Intel Arcada A770 16GB (Sparkle OC edition)

Gigabyte z370 Aorus Gaming (F15c with F3 microcode)
ReBar enabled.

CoolerMaster MWE Gold v2 1050W PSU.

[Mike_Intel]

Hello Aceitunator,

Thank you for posting in Intel community Forum.

For me to further check this, please help provide the following details:

1. When did you start having this issue?
2. What was the last change made in the system before the issue started?
3. Can you share videos of the issue?

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician

[Aceitunator]

>> When did you start having this issue?

@Aceitunator wrote:

I'm not sure if this started with 32.0.101.6739 (i didnt even open OBS when I had these drivers installed so i can't tell) or 32.0.101.6790 drivers
(...)

---

>> What was the last change made in the system before the issue started?
A driver update as I suggest in my 1st message...

>> Can you share videos of the issue?
There is a video attached to the 1st message xd. Did you even read the symptoms?
https://community.intel.com/t5/Intel-ARC-Graphics/Performance-regression-with-OBS/td-p/1687532?attachment-id=114539

[Mike_Intel]

Hello Aceitunator,

I hope this message finds you well. 

Were you able to check the previous post?

Please let us know if you still need assistance.

Best regards,

Michael L.

Intel Customer Support Technician

[Mike_Intel]

Hello Aceitunator,

Thank you for the update.

Kindly help provide the SSU logs of your system. Please refer to the link below for the steps on how to generate the logs:

https://www.intel.com/content/www/us/en/support/articles/000057926/memory-and-storage.html

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician

[Aceitunator]

Hi, Mike.

Give me a few days because I just gave up with this card and im actually using an AMD GPU; On friday Ill restore a partition image I made using the built-in DISM command before switching to AMD, so I can effectively revert any other changes I made since that GPU swap. Then Ill plug the A770 card and replicate the error in order to upload the SSU log for you.

[Mike_Intel]

Hello Aceitunator,

Thank you for the update.

I will just wait for your next reply on this thread once you have the information that I requested.

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician