[ceph-users] Re: Mapped rbd is very slow

fio -ioengine=libaio -name=test -bs=4k -iodepth=32 -rw=randread -runtime=60 -filename=/dev/rbd/kube/bench

Now add -direct=1 because Linux async IO isn't async without O_DIRECT. :) + Repeat the same for randwrite.