[GitHub] [incubator-nuttx] v01d commented on issue #1733: tickless mode: allow scheduling timer to stop when not needed

[GitBox <gi...@apache.org>]

v01d commented on issue #1733:
URL: https://github.com/apache/incubator-nuttx/issues/1733#issuecomment-724393189


   hi @patacongo I'm at a point where I would like to try to deal with the recurring interrupt of the RR scheduler in tickless mode. While the above discussed issue applies to any situation when no ready tasks are available (and thus the scheduler interrupts could be stopped until one becomes ready), I'm interested in the particular case of not having these interrupts fire while system is sleeping (entered with WFI). I'm thinking that since NuttX is not running in this case, I should be able to disable the scheduler altogether, and re-enable it when waking up. I imagine this should involve removing the periodic alarm and being reset when scheduler starts again, right? Is this implemented?
   I found `nxsched_suspend_scheduler` but it does not seem to do anything for the RR case. Maybe this is not really what I think it is.
   @xiaoxiang781216 do you have any insight into this? I think you did a lot of SMP stuff and imagine you understand the scheduler much better than me.


----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

For queries about this service, please contact Infrastructure at:
users@infra.apache.org