On Thu, Jun 19, 2014 at 01:42:20PM -0700, Paul E. McKenney wrote: > On Thu, Jun 19, 2014 at 03:31:56PM -0500, Christoph Lameter wrote: > > On Thu, 19 Jun 2014, Paul E. McKenney wrote: > > > > > That is a separate issue, but unnecessary calls to cond_resched() > > > should of course be removed -- no argument there. > > > > It looks like we are fighting higher latencies by adding calls in most of > > the critical sections which will in turn increase the latencies that we > > are trying to reduce. > > That is on battle in a larger war. Another battle is to keep big systems > from choking and dying. We need to win both battles, though I understand
If we really need cond_resched() now to stop systems from dying we did a really poor job at designing Linux. I hope it's not true, that would be really bad and point to some severe design problems elsewhere. -Andi -- 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/
