Hi there,

I was recently pointed at this thread as I was experiencing poor FPS with my ASI174MM on RPi4/USB3 at any higher ROI than 1536x1024 (more details here ). I gave the libASICamera2Boost.so a whirl with some mixed results:

With indiserver running the library on the RPi I was able to get about 51FPS over gigabit ethernet (~940Mbits/sec). A big difference compared to it barely working at all at full resolution (< 1FPS)! However the indi_asi_ccd driver crashed quite often on the RPi saying something like:

2021-09-15T22:13:13: Driver indi_asi_ccd: No INumber 'Gain' in ZWO CCD ASI174MM.CCD_CONTROLS 2021-09-15T22:13:13: Driver indi_asi_ccd: No INumber 'Offset' in ZWO CCD ASI174MM.CCD_CONTROLS 2021-09-15T22:14:19: Driver indi_asi_ccd: stderr EOF 2021-09-15T22:14:19: Driver indi_asi_ccd: restart #1 Child process 7329 died

Not sure if this is related but on connection I get this in the INDI control panel in Kstars:
2021-09-15T22:11:59: [ERROR] Failed to get control information (ASI_ERROR_INVALID_INDEX).

I was not able to get anything sensible out from AsiCameraPerformance. It says Best bandwidth is 70%, it has 1767770.7 FPS cool.png
Please see the attached logs for more information.

Happy to run more tests! Is there a way to run indiserver in gdb in order to try and catch the indi_asi_ccd crash?

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