Depends on your objective (are you trying to dodge tricks your SSD might do?) but bear in you can't control where the SSD ultimately chooses to put the data or how much it chooses to stuff into each erase block size. Additionally randrepeat only has an impact when an entire run is repeated. Some modern SSDs do compression/de-duplication so if you want to try defeat that you might want to look at the refill_buffers/scramble_buffers parameters (http://fio.readthedocs.io/en/latest/fio_doc.html#cmdoption-arg-refill_buffers ). On 6 February 2017 at 15:54, Slow bucks <frankwhitebe@xxxxxxxxx> wrote: > Does it make sense to disable randrepeat on SSDs with the way data is > written (always write to new block with empty pages)? > > > -- > To unsubscribe from this list: send the line "unsubscribe fio" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Sitsofe | http://sucs.org/~sits/ -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
