Data
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The pi 4 can support up to ~820 Mbit/s via its USB3 ports (effective throughput for a single active channel).
On the USB2 ports the speed goes down:
streaming via vimba SDK from raspberry pi 4
- The speed of the camera read out can be controlled via "DeviceLinkThroughputLimit". The test was carried out with two Allied Vision 1800 U-120m (USB3 link) 1280x960 pixel, 16 bit per pixel
- at 75 MByte/s and two cameras the images get funky
- at 60 MByte/s and two cameras the images are stable, achieving a frame rate of > 2x20 FPS and a combined (effective) data throughput of > 800 MBit/s
- the code uses multi-threading and thus keeps slightly more than one of the 4 ARM cores busy
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