On Mon, Jan 27 2014, Wallence Lu wrote: > Recreated with fio 2.0.11-35-g8428, the version was checked out from > https://github.com/axboe/fio. 2.1.4 is the latest, but I don't think that would change anything for you. > I read a little bit of the source code, it seems to me the randwrite > option gets the LBA without specifying the IO size. With that said, > for a bsrange option, it is likely one random IO can step onto another > IO if they happen to be adjacent. For example, request A has LBA > of 1024 and size 8K, request B has LBA 1016 and size 16K. Without > checking the request size, request B can overwrite content of request > A. > > Is that the right interpretation? Do I miss something? Thanks. Fio is supposed to handle that, the job file should work. I'll take a look at it. -- Jens Axboe -- 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