> That should be as good as it gets for an abrupt stop outside of > something like killall -9 fio. Don't you get some message about > 'hasn't exited in 60 seconds, it appears to be stuck. Doing forceful > exit of this job." after 60 seconds? No, after 60 seconds it is still going. Sometimes kill -9 works, but not always. Sometimes it leaves the [fio] process showing in ps and disk activity continues. This is frustrating, not having a proper way to quit.