On Tue, Mar 22, 2011 at 06:04:04PM -0700, Jeff Brown wrote: > On SMP systems, it is possible for an evdev client blocked on poll() > to wake up and read events from the evdev ring buffer at the same > rate as they are enqueued. This can result in high CPU usage, > particularly for MT devices, because the client ends up reading > events one at a time instead of reading complete packets. This patch > ensures that the client only wakes from poll() when a complete packet > is ready to be read. Doesn't this only help with very first packet after a pause in event stream? -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
