Hi Jay,
We have seen improvements when using a low latency or real-time kernel. Unfortunately there is no way to determine when this loss occurs. At one point we narrowed it down to a small circular buffer within the FTDI driver, (based on other similar complaints). Several years ago we tested an open source version of the FTDI driver and saw worse results.
Internally using a low latency kernel with a desktop PC (Intel i-series processor), we saw no loss occur over long periods of acquisition (using IQ data to detect data loss). Although, I have had customers report data loss even on low latency kernels with lower power processors.
It would require a moderate/large firmware/software redesign to fully resolve this issue for the Linux platform. We don’t have any plans for this at this time.
Regards,
Andrew
