Cannot disable Frame Rate Limiter on L40

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1

Hi

I seem to be having an issue where I cannot disable the Frame Rate Limiter on L40 GPUs and am stuck at 60FPS. I’m running a 3D benchmark that displays a real time FPS counter which is pinned at 60FPS, and I can also see by the results on different benchmarks that the L40 is hugely under performing, because of the 60FPS limit.

The platform is: vSphere 8.0U1, vGPU 16.1, VMware Horizon 2306 and Windows Server 2022 (Server VDI)

The VMs have a 48Q profile allocated, have the “pciPassthru0.cfg.frame_rate_limiter = 0” setting added to the Advanced Settings, and when logged in, the VM successfully obtains a license.

The platform was working perfectly with A40 GPUs, but since upgrading to L40, we are now limited to only 60FPS. I have tried building a new VM, but the issue still remains.

If anyone is able to offer some suggestions it would be greatly appreciated.

Thanks
MG

2

Hi
Almost same config and same problem. With A40 everything was OK, but after change to L40 I’m also unable to disable frame rate limiter.

Thanks
JC

3

Hi JC

Thanks for adding your feedback, good to know I’m not alone with this issue.

I’ve just opened a Ticket with NVIDIA Enterprise Support, if we are able to resolve, I’ll post here with the details.

Thanks
MG

4

Yes, Please raise a support ticket with NVES as it looks like to be a general issue to increase the visibility…

Update: Indeed a bug we’re working on.

1 Like
5

Thanks Simon

I’ll drop you a message on Slack …

6

Hi JC

The issue has been identified by NVIDIA, and it is expected to be resolved in the 16.2 release, so keep an eye out for when that drops.

Regards
MG

7

Hi

For anyone else who’s experiencing the same issue, vGPU 16.2 was released on October 31st, and I can confirm that it does resolve the issue.

Regards
MG