Hmm, on Intel it might be an SMI-Issue. Matthias On 08.01.2014 00:46, Pavel Vasilyev wrote: > 08.01.2014 02:58, Tim Sander пишет: > >> Yeah 118 µs should be the right ballpark, while still a little high for my >> taste. All cortex a8 seem to have rather high latency. The A9's seem much >> better in this respect. > > On my Intel Atom D425, latency around 25-30 µs (but peaks upto 5000 µs :/ ) > >> >> Have you seen the following: >> https://www.osadl.org/Realtime-Preempt-Kernel.kernel-rt.0.html#latencyfighting >> >> Cyclictest has tracing support which might help finding the cause of the long >> latency. >> > > -- 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
