On 13.12.17 14:00, Roger Oberholtzer wrote:
On Wed, Dec 13, 2017 at 1:35 PM, Alexander Graf <agraf@suse.de> wrote:
Would it make sense to resort to polling at those speeds instead? Maybe poll using a constant reoccuring hrtimer?
Granted polling does not have the interrupt overhead. But I wonder how it keeps up with respect to scheduling. Might one miss activity when the kernel thread is not running?
Depends on how bad your jitter is, but I would hope that you'll get better granularity than 23khz ;). Worst case you can always try and isolate one CPU to do nothing but poll. You have 4 of them after all :). But that gets quite complicated ... Alex -- To unsubscribe, e-mail: opensuse-arm+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-arm+owner@opensuse.org