On 10/15/12 12:38, Hans de Goede wrote: > Often the guest will queue up new packets in response to a packet, in the > async schedule with its IOC flag set, completing. By speeding up the > frame-timer, we notice these new packets earlier. This increases the > speed (MB/s) of a Linux guest reading from a USB mass storage device by a > factor of 1.15 on top of the "Improve latency of interrupt delivery" > speed-ups, both with and without input pipelining enabled.
Why not just set async_stepdown to 0? cheers, Gerd
