On Thu, Jun 19, 2014 at 04:16:34PM -0500, Christoph Lameter wrote: > This looks very much like the CONFIG_PREEMPT problem in not so > extreme form. Maybe we need to add another config option: > > CONFIG_REALLY_REALLY_NO_PREEMPT > > to get the fastest code possible and those cond_rescheds removed from the > critical paths? > > Or better > > CONFIG_PREEMPT_HALF_WAY > > to enable those cond_rescheds.
That much actually does seem quite reasonable: making cond_resched() do non-trivial work ought to have a config option to disable it. -- 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/
