On Tue, Jan 14, 2014 at 04:39:54PM +0000, Morten Rasmussen wrote: > Responsiveness is still very important. It is quite hard to control. CFS > doesn't consider latency. The only way to get the best responsiveness is > to go for best performance which comes at a high cost in energy.
The big problem is that the normal unix task model doesn't cover his at all -- nice isn't much of a knob. There's ways in which you can adapt CFS to include such a measure (search for the EEVDF patches), but I was kinda hoping that tasks that really desire responsiveness could be made to use SCHED_DEADLINE or such. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/