on 30/10/2012 03:33 Steven Nikkel said the following: > I'm running a long duration CPU-centric process that will gobble up all > available CPU time. I have it set to run at nice +20. While it's running I've > noticed other processes have a hard time getting CPU time and run their > activites very slowly. The processes I've noticed issues with are IO involved, > but they don't appear to be IO blocked as they run dramatically faster and use > much more CPU time when the CPU intensive process is not running. I haven't > noticed issues with other processes, but I haven't been looking. If I push my > CPU intensive process into idle priority 1, all the other processes return to > their normal behaviour as if it's not running. > > This seems to be a specific behaviour on this one machine running > 9.0-RELEASE-p4 > on an Atom 330 dual core. I've tried with and without hyperthreading enabled > with no noticeable change in behaviour.
Can you try with lower nice value, like +10? You want a fix from r228718. AFAIR, it is not in 9.0. -- Andriy Gapon _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[email protected]"
