--- /dev/null
+#!/bin/sh -x
+
+set -e
+
+git clone git://git.ceph.com/xfstests.git
+cd xfstests
+git checkout b7fd3f05d6a7a320d13ff507eda2e5b183cae180
+make
+cd ..
+cp xfstests/ltp/fsx .
+
+OPTIONS="-z" # don't use zero range calls; not supported by cephfs
+
+./fsx $OPTIONS 1MB -N 50000 -p 10000 -l 1048576
+./fsx $OPTIONS 10MB -N 50000 -p 10000 -l 10485760
+./fsx $OPTIONS 100MB -N 50000 -p 10000 -l 104857600