On Thu, Mar 30, 2017 at 09:59:54PM +0800, Wanpeng Li wrote: > 2017-03-30 21:38 GMT+08:00 Frederic Weisbecker <fweis...@gmail.com>: > > If it works, we may want to take that solution, likely less performance > > sensitive > > than using sched_clock(). In fact sched_clock() is fast, especially as we > > require it to > > be stable for nohz_full, but using it involves costly conversion back and > > forth to jiffies. > > So both Rik and you agree with the skew tick solution, I will try it > tomorrow. Btw, if we should just add random offset to the cpu in the > nohz_full mode or add random offset to all cpus like the codes above?
Lets just keep it to all CPUs for simplicty. Also please add a comment that explains why we need that skew_tick on nohz_full. Thanks!
