Hi Sam, I ran a test on a Core2 2.6Ghz machine with an RT build and didn't see an error, which is a bit of a head scratcher. This machine is running ubuntu 10.04 from the recent 2.5.3 LinuxCNC CD, so it should be a standard setup. It could be something about my config that isn't pushing it hard enough. Do you mind sharing your config folder? I'd like to run the same test under identical conditions if possible.
Thanks, Rob On Thu, Dec 5, 2013 at 7:39 PM, Robert Ellenberg <[email protected]> wrote: > Thanks for isolating those bits of code! I'll run those snippets on my 2 > machines with RT builds tonight to see if the same failure occurs. Logging > kindof works in RT builds but it dumps the text to a system log instead of > stdout. Also, floats don't print correctly because of a limitation in > rtapi_print. Given the annoyances with RT builds, don't worry about > capturing debug logs for now. It's plenty helpful just to have a snippet of > code that fails. > > I took a look at steve.ngc, and it looks like there are a bunch of > "almost" tangent arcs, so there are still some slowdowns here. The latest > commit should handle arcs and lines that are exactly tangent. I could cheat > and make the tolerance looser, but it will likely introduce small > acceleration spikes that will be hard to control. Still, this type of > benchmark is really useful to see what the new code can and cannot do. > > I'll post again soon when I figure out the cause of the shoot-to-infinity > error. My guess at this point is that a function is implemented differently > on the RT side that is not catching a NAN or divide by zero error. > > -Rob > ------------------------------------------------------------------------------ Sponsored by Intel(R) XDK Develop, test and display web and hybrid apps with a single code base. Download it for free now! http://pubads.g.doubleclick.net/gampad/clk?id=111408631&iu=/4140/ostg.clktrk _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
