On 2010-11-10 20:50, John Cagle wrote: > If the disk is 2TB, then your 100GB test is only using 5% of it-- thus > your observed IOPS will be a lot better than expected due to > short-stroking. Right? That is also true, but probably not that much. See my previous email, rotational latency should dominate here. -- 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