On Tue, Oct 12, 2010 at 6:33 AM, Bruno Randolf <br1@xxxxxxxxxxx> wrote: > So my question is: How can I find out, what [phy1] is so busy doing? Any ideas > how to profile this? /proc/interrupts shows lots of interrupts on phy1 line? Is it shared irq? What options did you try with oprofile? You can try perf -- as long as you limit the functions you profile it should have about the same overhead as oprofile. But then you should get about the same results with either; I just find perf to be a little better these days. One thing I know of is that all the linear interpolation we do for setting the power curves is pretty heavy cpu-wise and we do it on every reset. There's some low-hanging fruit there like precomputing the reciprocal of some scaling factors instead of some divisions... -- Bob Copeland %% www.bobcopeland.com -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
