I agree. I think that my issue is related to the i915 video driver for my board. I've found some messages on the Xenomai mailing list that sound similar. I believe that both Xenomai & RTAI share the same I-Pipe code. I haven't had the time to investigate properly, but some guidence on troubleshooting the latency numbers would be great.
Sebastian, Is there any way to troubleshoot the latency other than to blindly replace drivers? Sounds like there is a non-insignificant number of motherboards where this kernel doesn't have good latency numbers. Regards, Eric On Thu, Dec 26, 2013 at 12:28 PM, Sebastian Kuzminsky <seb@... <http://gmane.org/get-address.php?address=seb%2dWzWVmylK8bdBDgjK7y7TUQ%40public.gmane.org>> wrote: > On 12/24/2013 05:33 PM, Brian Morel wrote: >> Is there any documentation on how you built the kernel & modules packages? >> I installed the test, but was getting 100k+ latency on the machine. I was >> getting 10k ish on the same machine using the latest live cd. I've been >> working on a customer kernel to see if it improves, but I can't figure out >> how to build the rtai-modules package. > > It's a bit of a round-about build process, and it's poorly documented - > basically just notes to myself... I should clean it up at some point. > > Here's the notes, such as they are: > > https://github.com/SebKuzminsky/rtai/commit/e0d3d0aed2baaecc7e5fea1c2c3a1f08e9898154 > > It's basically: > > * check out the Shabby/memleak RTAI repo > > * check out the linux-stable repo > > * apply the kernel patch from the rtai repo to the linux tree > > * build the kernel & install > > * build rtai modules & install > > > -- > Sebastian Kuzminsky > ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
