Bonsai
Low frames using Blackfly S USB3 (522fps) with 1.29.0.5 Spinnaker #1845
Replies: 1 comment 13 replies
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What settings are you using for the camera? Are you triggering the camera? We are currently using 1.29.0.5 with BFS-U3-04S2C and last time I checked, we were managing to acquire at 500hz. |
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Workflow.zip |
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The workflow you sent does not use ffmpeg |
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I don’t have access to it right now, but the ffmpeg workflow is the exact same with just the ffmpeg videowriter. But there’s the same issue with both types. Bonsai just crashes after that GPU spike |
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Does the spike happen if you have an empty workflow with a single |
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No it does not. It ran stable for an hour, no GPU spikes, no crashing. |
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Hello!
We have multiple high-fps FLIR cameras that we have been testing with Bonsai. Using the older 1.29.0.5 Spinnaker software, connecting and testing all the cameras are fine. We have a 227 fps Blackfly S as well, and some Grasshopper, but all the frames are capped to 200. Testing the same cameras with the newer 4.0 Spinnaker software, which is incompatible with Bonsai usage, gives us our promised FPS. I have come to the conclusion that the older drivers are not efficient enough to fully optimize the newer cameras/higher fps. Even when deciding to go with 200 fps, when running 10-min tests with 3 cameras attached, the outputted video files vary in length. Their quality remains the same, but some video is either sped up or loss.
My guess with all of this is just that the old drivers can't handle the high frames, and that Bonsai doesn't seem to know how to processes such high volumes of frames. Recording through Spinview has the same issues, the recording fps stays at 200, but the processing fps tends to fluctuate around 160-180 fps. I did some digging, and found when optimizing Bonsai recording to use the GPU, it has yielded better results. However, how does one accomplish that?
This is how I have been recording:
Whilst running tests I always pay attention to the system memory usage, and although it does get high during recording, nothing too alarming. It is after the recording stops where I presume buffered images during recording are then appended to the avi. Thinking that this was just a hardware error, we have tested on a variety of high-power computers. All with 128 GB DDR5 RAM, RTX 4070 - 4090, and and i7 and i9 13700k CPU. The only thing I might see to be the issue might be power supply. Most of these systems have 800 W, with the 4090 having a 1000W supply. Could that be the issue?
Those are the two main problems we have been facing, a 200 fps cap with older spinnaker, and terrible fps processing speeds which cause recorded videos to be inaccurate with lost frames.
Any advice would be appreciated, thank you.
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