On 2012-12-18 08:21, Jens Axboe wrote: > Good analysis and I believe you are correct. It's not safely shared and > should be thread local. A quick test here with the below seems to > indicate that that is indeed the issue, I don't see any time weirdness > with that applied. Bah, so that didn't work on all the supported platforms (notably OSX does not have support for __thread). I've committed a patch that should work across platforms, please give the current fio git a try (5d879392 or newer). -- Jens Axboe -- 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