On 11.02.2013 16:54, Ralf Müller wrote: > It basically is a loop that wakes up every milli second, increments a > generation counter, does some statistics and goes to sleep for > another millisecond. 3-4.5 seconds is heavy so this is not very probable, but seeing that you have a thread with prio 99 and have timer wakeup problems, depending on what the other realtime threads do maybe the following could be (part of) the issue: http://www.spinics.net/lists/linux-rt-users/msg08745.html http://www.spinics.net/lists/linux-rt-users/msg07804.html Shortly said: you aren't going to have low latency timers if the ksoftirqd can be preempted by your threads. Disclaimer: I have never used RT with 2.6, so I don't know whether it applies at all. Regards -- Stano -- 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
