On Mon, Nov 23, 2020 at 09:22:08PM +0800, Yunfeng Ye wrote: > In realtime scenarios, the "nohz_full" parameter is configured. Tick > interference is not expected when there is only one realtime thread. > But when the idle thread is switched to the realtime thread, the tick > timer is restarted always. > > So on the nohz full mode, it is unnecessary to restart the tick timer > when there is only one realtime thread. Adding can_stop_full_tick() > before restarting the tick, if it return true, keep tick stopped. > > Signed-off-by: Yunfeng Ye <yeyunf...@huawei.com>
We can indeed stop the tick and avoid it to be re-armed needlessly at this point. I'm taking your patch, I may just edit it a little and resend it. Thanks!
