Hi all, I just put together a small emc2 box for my lathe-project: http://www.anderswallin.net/2010/01/atom330itx-computer-for-emc2-lathe-control/
The performance database here http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Latency-Test shows a quite low jitter number of 6000 ns or so. I was getting double that, or 12-16000 ns when running glxgears, firefox, etc. together with latency-test. This is a standard 32-bit 8.04LTS install after which I ran http://linuxcnc.org/hardy/emc2-install.sh Any special tweaks to the BIOS or to Ubuntu which could make realtime performance better? The Atom330 has one CPU, if I understand correctly, but the BIOS has a setting for HyperThreading, so Ubuntu thinks there are two CPUs. Has anyone experimented with HT on/off to see the effect on realtime latency? (would I need an SMP-realtime kernel?) Anders ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
