On 01/07/2010 03:47 PM, Clark Williams wrote: > On Thu, 07 Jan 2010 08:23:52 +0100 > Carsten Emde <Carsten.Emde@xxxxxxxxx> wrote: >>>> -S --smp Standard SMP testing (equals -a -t -n -d0), >>>> same priority on all threads. >> After having done some tests with a quickly hacked cyclictest version, I >> have found an issue with including -d0. Apparently, small numbers make >> life especially difficult for the scheduler; this is why we often used >> -d1. Specifying -d0 seems a special case where all threads are in sync. >> Maybe, we may miss some important latency constellations, if we do not >> let the tasks slightly interfere. In any case, I would like to be able >> to specify a distance _in addition_ to -S. >> [..] > I don't have a problem not having -d in the -S option. I was looking at > the possibility of synchronous sampling as well so it's probably a good > idea to keep it separate. > The main things we want are implied -t, -a and -n. Yes, let's do it this way. -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
