Messages in this thread | | | Date | Tue, 30 Mar 2004 15:17:43 +1000 | From | Nick Piggin <> | Subject | Re: kernel thread scheduling question |
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Ben Greear wrote: > I have a kernel thread that I would like to have run at least > every 1-2 miliseconds. > > I think I would be happy if there were a way to have the > process yield/schedule() at least once per ms with the > understanding that it would get to wake again 1-2ms later. > Is there a way to do such a thing without hacking up the > scheduler code? > > I have tried 2.6.4 with pre-empt, and setting the thread priority > to -18, but I still see cases where the process is starved for 20+ > milliseconds every 3-5 seconds or so. Other than this single > process, there is not a big load on the system. >
Use realtime scheduling. sched_setscheduler (2) is a good place to start.
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