Tickless by itself doesn&#x27;t guarantee that the system won&#x27;t be woken up periodically by an application timer. It simply guarantees that the system won&#x27;t wake up needlessly if there are no timers to serve.<p>Timer coalescing, which I believe Windows also implement, does help by both setting a minium resolution to timer frequency and making sure that timers wake up in batches.<p>edit: spelling