On Mon, Feb 24, 2014 at 12:30 PM, Pal, Laszlo <vlad@xxxxxxx> wrote: > Thank you. The workload is mixed read / write , small and big packets, > and I have raid1 sets in one of the box and raid50 in the big boy. I > suppose using the iodepth=32 will show me more realistic numbers than > my original tests. Is this a valid assumption if I increase iodepth > until I get bigger IOPS values will get me closer and closer to the > maximum IOPS can provide the config? > > Thank you > Laszlo You'll want to experiment with different iodepths and use whatever gives you the best results. And if you're looking to get a max IOPS you probably want to stick to 4k transfers. I would try something like this: [global] ioengine=libaio direct=1 iodepth=128 size=50g runtime=5m directory=/mnt/drbd/private/ [random_write] rw=randwrite bs=4k stonewall [random_read] rw=randread bs=4k stonewall [seq_write] rw=write bs=128k stonewall [seq_read] rw=read bs=128k stonewall -- 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
