Reading back on IRC I found hints at rt-preempt ubc3 builds showing the max latency going down occasionally.
Please: 1. report the exact kernel version, in particular if this is stock debian rt-preempt kernel. 2. check if ntp is running or not, i.e. the output of 'ps ax|grep ntp' 3. If yes, please stop the ntp demon with 'sudo /etc/init.d/ntp stop' or equivalent 4. Re-run latency-test after ntp is stopped. Does the problem reoccur? 5. Please report your results using the ubc issue tracker as mentioned here http://static.mah.priv.at/public/html/common/UnifiedBuild.html#_issue_tracker , for this issue: https://github.com/zultron/linuxcnc/issues/72 background: there is a chance that the issue is related to the behavior described here, in particular the subtle difference between CLOCK_MONOTONIC and CLOCK_MONOTONIC_RAW: http://stackoverflow.com/questions/3657289/linux-clock-gettimeclock-monotonic-strange-non-monotonic-behavior http://markmail.org/thread/54bb663vi47kjxnu - Michael ------------------------------------------------------------------------------ CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments & Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
