Hi, On 28 December 2017 at 23:17, Gnana Sekhar <kgsgnana2020@xxxxxxxxx> wrote: > > I am looking to see if FIO has options to pass LBA count and data > pattern as CLI arguments. The rw parameter can take a :<nr> parameter (see http://fio.readthedocs.io/en/latest/fio_doc.html#cmdoption-arg-readwrite ). The various zone options (e.g. http://fio.readthedocs.io/en/latest/fio_doc.html#cmdoption-arg-random-distribution , http://fio.readthedocs.io/en/latest/fio_doc.html#cmdoption-arg-zonesize ) can enable some types of repetition. It's hard to say if this is enough for your purposes though... If you have to precisely craft exact offsets and exact counts you could use an iolog replay file via the read_iolog option (http://fio.readthedocs.io/en/latest/fio_doc.html#cmdoption-arg-read-iolog ). If your shell supports it you might be even able to craft the replay "file" on the fly (e.g. bash can use <() to do Process Substitution). > Data pattern means same pattern to the specified LBA range i.e., > either all 1's or 0's etc., If the data is identical in every block being written then perhaps buffer_pattern - http://fio.readthedocs.io/en/latest/fio_man.html#cmdoption-arg-buffer-pattern ? > Also will FIO be able to write to specified number of LBAs > irrespective of the LBA size I am struggling to understand this question. If you mean "can fio be told to write a specific number of blocks" then isn't this normally the blocksize (http://fio.readthedocs.io/en/latest/fio_man.html#block-size )? -- 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
