On Wed, 18 Oct 2017, Angelo Dureghello wrote:
Ok will do some test, maybe also adding 1 stop bit
Adding a stop bit or two will marginally reduce the effective data rate but it could be that 115200 baud is unrealistic.
or killing some processes may help ? I am already into initramfs, so the write should not be that heavy.
I take it you mean storing into rootfs. So the latency is caused by some other interrupt source (not flash storage) with higher priority than the uart irq...
Will try also zmodem in case.
Keep in mind that a larger block size would mean a larger penalty for a single overrun, which can reduce throughput. --
Regards, Angelo
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