On Wed, Nov 20, 2013 at 01:12:43PM +0100, Stefan Priebe - Profihost AG wrote: > Can anyone explain to me why O_DSYNC for my app on linux is so slow? Because FreeBSD ignores O_DSYNC on block devices, it never sends a FLUSH to the device. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html