On Tue, Dec 21, 2010 at 7:21 AM, Da Rock <[email protected]> wrote: > On 12/19/10 23:57, RW wrote: >> >> On Sun, 19 Dec 2010 14:32:42 +1000 >> Da Rock<[email protected]> wrote:
[...] > > Bugger! I was hoping there was more to it than that... I've read that > already. > Yeah I was left with the same feeling after tagging your thread for follow-up. The man says that it derives from the HP-UX model so maybe there are some references to that, and we shoudl start there. I would like to know what the exact differences are with nice. I was expecting to find for example, the rtprio value to be in actual time units, question: is there a correlation to the number and a concrete RT value say cpu cycles or so? Is there a way to calculate the the minimum expected timeslice or the maximum time to re-schedule. For example, in PLC design you usually have to guarantee that you will evaluate a certain number of ladder instruction in a maximum amount of time, say 1000 ladder instructions in a worst case of 100ms. So the question is if this is rt scheduling then there must be a correlation with rt units. I don't have much time but I will try to research this soon.... > Thanks > _______________________________________________ > [email protected] mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "[email protected]" > _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[email protected]"
