On Fri, Oct 30, 2015 at 12:48 PM, vmokric <vojislav.mokric@xxxxxxx> wrote: > Hello, > > can someone point me to FIO function which performs IO units block size > settings? If I, e.g. pass "bs=8k", where does it actually ends up? It goes through the parser into setting up the per-process/thread I/O pattern, look under struct thread_options definition. > > I have searched ioctl commands, but couldn't figure out actual function. > ioctl has more or less nothing to do with this as it pops up only when fio deals with a block device and wants to learn its size (look under filesetup.c and os/os-linux.h). Regards, Andrey > I would really appreciate any help, since I need some guidelines within > perplexed world of Linux IO system. > > Regards > -- > 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 -- 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