--- /dev/null
+#!/bin/bash
+
+set -e
+
+# basic tests of O_SYNC, O_DSYNC, O_RSYNC
+# test O_SYNC
+iozone -c -e -s 512M -r 1M -t 1 -F osync1 -i 0 -i 1 -o
+# test O_DSYNC
+iozone -c -e -s 512M -r 1M -t 1 -F odsync1 -i 0 -i 1 -+D
+# test O_RSYNC
+iozone -c -e -s 512M -r 1M -t 1 -F orsync1 -i 0 -i 1 -+r
+
+# test same file with O_SYNC in one process, buffered in the other
+# the sync test starts first, so the buffered test should blow
+# past it and
+iozone -c -e -s 512M -r 1M -t 1 -F osync2 -i 0 -i 1 -o &
+sleep 1
+iozone -c -e -s 512M -r 256K -t 1 -F osync2 -i 0
+wait $!
+
+# test same file with O_SYNC from different threads
+iozone -c -e -s 512M -r 1M -t 2 -F osync3 -i 2 -o