Thanks for the response But I am pretty sure about the functionality of wait command. The device is a conventional magnetic disk. On Tue, Apr 7, 2015 at 12:39 PM, Alireza Haghdoost <haghdoost@xxxxxxxxx> wrote: > Sounds like your wait statements are not correct. Referring to HOWTO.txt : > > wait Wait for 'offset' microseconds. Everything below 100 is > discarded. > > > What kind of storage device do you have under /dev/sdb ? > > -- 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