I was wondering... Is there any benefit to be found with the real time kernel by disabling apm or other features with the kernel parameters? For example acpi=off apm=off etc?
----- Original Message ----- From: "Alex Joni" <[EMAIL PROTECTED]> To: "Enhanced Machine Controller (EMC)" <[email protected]> Sent: Monday, May 05, 2008 1:59 PM Subject: Re: [Emc-users] 155 ms real-time delay every 10 minutes? >I think this has been reported on the RTAI mailing list some while ago, > there are machines where the TSC is not the most reliable source. > Try looking at rtai_calibrate, that is supposed to help in some cases > (but I'm not sure if only for userspace RT). > > Regards, > Alex > > On Mon, 2008-05-05 at 09:34 -0500, Jeff Epler wrote: >> On Sun, May 04, 2008 at 06:10:08PM -0400, Kenneth Lerman wrote: >> > Googling: pit clocksource had been installed >> > >> > Got me to: >> > http://lists.opensuse.org/opensuse-bugs/2008-01/msg00541.html >> > >> > It appears from the above that you may be able to choose your clock. >> > Choose >> > wisely. >> >> Regardless of what clocksource the kernel uses, emc *always* uses the >> TSC for its internal time accounting (e.g., motion.servo-last-period). >> This could potentially be changed, someone "simply" needs to re-write >> rtai_rtapi.c:rtapi_get_clocks(). >> >> Jeff ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
