On Fri, Oct 15, 2021 at 02:10:32AM +0000, Emmanuel Dreyfus wrote: > The wm0 interface gets a lot of interrupts. On low usage, CPU > is spent around 10% in interrupts. It can rise to more than 80%. > See below what systat vm says when the machine is quiet. > ioapic0 pin 16 is the wm0 interface.
Is it the only device using that pin? If so, can you add an event counter or so to wm_intr to check what percentage of calls to wm_intr return handled == 0? Joerg
