> It should all be as fast as it could be before. The issue fixed above is > when we wanted the disk util thread to exit, we set a done flag and just > waited for it to wakeup as, which it did a few times per second. Now we use > regular condvars, so it'll wake and exit immediately. So disk_util=0 should > not change more than a msec or so :-) > > That said, if you do find things where it seems to start or stop slower than > it should, let me know. But as far as I know, it's all properly driven now. > > -- > Jens Axboe >
Thanks! Just to follow up, I wrote a test script looping 20 iterations of fio and tested 2.1.12 vs 2.1.14. 2.1.14 consistently finished ~2.7 seconds faster than 2.1.12, which I think is great for only 20 iterations. Just for kicks, I also tried setting disk_util=0, but could not conclude that it made any difference. -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
