On Fri, 2007-11-02 at 17:23 +0530, Jaswinder Singh wrote: > hello Gerrit Binnenmars, > > > On 11/2/07, Gerrit Binnenmars <gerritbinnenmars@xxxxxxxxxx> wrote: > > > > Another question: can you ever guarantee a max. latency if a user has access > > to the system? > > > The user could trip over the power chord! Seriously, users cannot use the high priorities, so apps running above the user's MAX_PRIO should be safe from whatever the user does. > I do not think so. this shows this is soft real time. > > It best example is : > > http://rt.wiki.kernel.org/index.php/Cyclictest > > you can request for interval for 1000 so it should come 1000 all the > time, but it is not. Its should come CLOSE to 1000. What errors have you seen? Have you run latency trace on your workload to identify any long code-paths that need to be cleaned up? Sven - 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