> So for now, I'm back to thinking that measuring the interval between deep sleeps is the better approach. I could use some ideas for a good clock source though. I haven't dug much deeper than jiffies when it comes to kernel timekeeping. jiffies should work, you just need to make sure you measure them at the right place. In particular there is some code in dyntick that catches up on jiffies after the deep sleep when the normal timer handler didn't run and jiffies are only usable again after that code executed. -ANdi _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm