On 2014-11-11 18:11, Matthew Eaton wrote:
- Fio will exit a bit faster now, since the disk util thread and the
helper thread were combined into one, and it'll be immediately torn
down on exit. It had to wait around 250msecs before this change. You
might have noticed this delay when doing ctrl-c on a workload.
I find this update interesting, as I have a script that calls fio
multiple times, one after the other.
Are there any options that would make fio start or exit faster? For
example, if I used disk_util=0, would this help fio exit any faster?
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
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