Hi Paolo On Fri, Aug 17, 2018 at 7:42 PM Paolo Valente <paolo.valente@xxxxxxxxxx> wrote: > > Try bfq too, as it is probably the one containing also the most old > way heuristics. If bfq fails too, we will at least know that the issue > is out of the schedulers. Or in every scheduler! :) I believe that for this specific setup: A disk reader with a cfast via USB3, the best approach might be to have a single queue and respect the tool sequence. But definitely the io layer is out of my expertise ;) Monday morning will performe the tests. Thanks again and best regards! -- Ricardo Ribalda