search for: poll_stop_idl

...e when we notice it has work to do. Polling on > this virtqueue is later disabled after 3 seconds of polling turning up no new > work, as in this case we are better off returning to the exit-based notification > mechanism. The default timeout of 3 seconds can be changed with the > "poll_stop_idle" kernel module parameter. > > This polling approach makes lot of sense for new HW with posted-interrupts for > which we have exitless host-to-guest notifications. But even with support for > posted interrupts, guest-to-host communication still causes exits. Polling adds > the...

...olling on a virtqueue when we notice it has work to do. Polling on this virtqueue is later disabled after 3 seconds of polling turning up no new work, as in this case we are better off returning to the exit-based notification mechanism. The default timeout of 3 seconds can be changed with the "poll_stop_idle" kernel module parameter. This polling approach makes lot of sense for new HW with posted-interrupts for which we have exitless host-to-guest notifications. But even with support for posted interrupts, guest-to-host communication still causes exits. Polling adds the missing part. When syste...

...olling on a virtqueue when we notice it has work to do. Polling on this virtqueue is later disabled after 3 seconds of polling turning up no new work, as in this case we are better off returning to the exit-based notification mechanism. The default timeout of 3 seconds can be changed with the "poll_stop_idle" kernel module parameter. This polling approach makes lot of sense for new HW with posted-interrupts for which we have exitless host-to-guest notifications. But even with support for posted interrupts, guest-to-host communication still causes exits. Polling adds the missing part. When syste...

...e when we notice it has work to do. Polling on > this virtqueue is later disabled after 3 seconds of polling turning up no new > work, as in this case we are better off returning to the exit-based notification > mechanism. The default timeout of 3 seconds can be changed with the > "poll_stop_idle" kernel module parameter. > > This polling approach makes lot of sense for new HW with posted-interrupts for > which we have exitless host-to-guest notifications. But even with support for > posted interrupts, guest-to-host communication still causes exits. Polling adds > the...

...e when we notice it has work to do. Polling on > this virtqueue is later disabled after 3 seconds of polling turning up no new > work, as in this case we are better off returning to the exit-based notification > mechanism. The default timeout of 3 seconds can be changed with the > "poll_stop_idle" kernel module parameter. > > This polling approach makes lot of sense for new HW with posted-interrupts for > which we have exitless host-to-guest notifications. But even with support for > posted interrupts, guest-to-host communication still causes exits. Polling adds > the...