> Since Lucid has reached end of support I decided to back up my config and > install from the 2.7 live CD. > Having done that, installed all of the updates, and adjustments to my > config files,I ran the latency test. > Overall the latency numbers are 30% higher than the Lucid install, but > still in an acceptable range. > Setting "isolcpus=1" in grub has no effect on latency, as it did in the > Lucid install. > Now when I run LinuxCNC, I am getting RTAPI error on startup > intermittently. When it does start without the error, the error shows up > within 5 to 10 minutes. > > Attached are the dmesg, and the -v startup for linuxcnc. > > Watching the system monitor while LinuxCNC is running for spikes in the CPU > utilization shows nothing unusual, other than the second cpu is not being > utilized at all. > I have always thought that isolating a cpu from the linux scheduler was to > allow the RTAI kernel to use it without the system interrupts interfering > with it. > > Is there some setup that i missed to mask the RTAI kernel to use the > isolated cpu? Or are there any "taskset" statements that need to be changed > to properly utilize the isolated cpu? > > I know just enough about real time OSes to be really dangerous! > > Any help is always appreciated! > > --J. Ray Mitchell Jr. > jrmitche...@gmail.com > (818)324-7573
If there are more than one core one serve the interrupts and the second is used for real time scheduling? ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
