I have a DN2800MT Atom motherboard that I want to run Linuxcnc on. I am using a Mesa 6I25 for step/dir so I am not much worried about latency. I know this board isn't ideal, but in the past I recall measuring latency of around 33k-40k or so which was fine. I did that with an older version of Linuxcnc (I think 2.5.X) after setting the isolcpus=1 parameter. Yesterday I put the latest Linuxcnc from the LiveCD on this system - version 2.6.5 on Wheezy (and did software updates afterwards). I launched the latency app, one instance of glxgears, and went home. This morning I see the following
Servo thread Max Jitter: 770360 Base thread Max Jitter: 771712 I recalled that I need to set isolcpus this morning so I went to read about that here and the last thing on the page (http://wiki.linuxcnc.org/cgi-bin/wiki.pl?The_Isolcpus_Boot_Parameter_And_GRUB2) says this will no longer be required "in the near future"? Does the latest need this parameter set, and is that my problem, or is this not required, and if so, why would the latency be so different than it was in 2.5? -Tom ------------------------------------------------------------------------------ Dive into the World of Parallel Programming! The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
