The simple explanation is that is a lot of jitter. Look here to debug - http://wiki.linuxcnc.org/cgi-bin/wiki.pl?TroubleShooting
I had a graphics card that ran at 200,000 when using the manufacturer 3d driver, but down to 40,000 with software 3d. On Sat, Mar 31, 2012 at 2:40 AM, Viesturs Lācis <viesturs.la...@gmail.com>wrote: > 2012/3/31 Alwyn McLeod <mcleod.al...@gmail.com>: > > When I run the latency test, I get Base thread jitter of 932659. In the > > config file the max. is set at 50,000. > > What You set in INI file is the length of the particular thread. I > guess that length of base thread is set at 50'000 ns and length of > servo thread is 1'000'000 ns. > > You do not set a jitter value anywhere. And 932'659 ns delay in a > 50'000 thread means that interrupt was almost 19 consecutive thread > periods. The only way I know, how such numbers can be obtained, is > running LinuxCNC and Ubuntu in a virtual machine. I have never heard > of anything close to this, when LinuxCNC is ran in "normal" way. > > I think You should share some information, what hardware do You have, > which version of LinuxCNC on which version of Ubuntu do You use and > probably paste Your config and preferably paste the screenshot with > the latency test results (let latency test run for some 30 min, try to > load the pc in a meantime by pressing alt+f2 and typing 'glxgears' and > hitting 'enter', open firefox, browse some web page, if You have > access, move that firefox window across the screen, copy some files, > do whatever else You can think of to load the pc) in picpaste.com or > similar place. > > Viesturs > > > ------------------------------------------------------------------------------ > This SF email is sponsosred by: > Try Windows Azure free for 90 days Click Here > http://p.sf.net/sfu/sfd2d-msazure > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
