Hi John, Frederic, I am working on identifying the different wakeup sources from the interrupts and I have a question regarding the timer broadcast.
The broadcast timer is setup to the next event and that will wake up any cpu, right ? The time framework will look at the different cpus next-event and send them an IPI to wake them up. Although, it is possible the sender of this IPI may not be concerned by the timer expiration and has been woken up just for sending the IPI, right ? If this is correct, is it possible to setup the timer irq affinity to a cpu which will be concerned by the timer expiration ? so we prevent an unnecessary wake up for a cpu. Did I missed something or does it sound correct ? Thanks -- Daniel -- <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook | <http://twitter.com/#!/linaroorg> Twitter | <http://www.linaro.org/linaro-blog/> Blog -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
