Hi, On Wed, 10 Feb 2021 at 13:26, Robert Balogh <ethrbh@xxxxxxxxx> wrote: > > What I would like to do is now, to start FIO, keep running it, and > "instruct/ask" FIO for putting the measurement statistic at every X > sec into the given stat file. Is it possible to do? The information in https://www.spinics.net/lists/fio/msg09025.html ("Re: Getting eta-status-line to the output file?") may be what you're looking for. If you are just after a specific stat the write_*_log options - https://fio.readthedocs.io/en/latest/fio_doc.html#measurements-and-reporting may be more useful to you. -- Sitsofe