On 02/12/2014 02:26 PM, Eric Dumazet wrote: > On Wed, 2014-02-12 at 13:50 +0800, Jason Wang wrote: >> On 02/12/2014 01:47 PM, Eric Dumazet wrote: >>> On Wed, 2014-02-12 at 13:28 +0800, Jason Wang wrote: >>> >>>> A question: without NAPI weight, could this starve other net devices? >>> Not really, as net devices are serviced by softirq handler. >>> >>> >> Yes, then the issue is tun could be starved by other net devices. > How this patch changes anything to this 'problem' ? > > netif_rx_ni() can only be called if your process is not preempted by > other high prio tasks/softirqs. > > If this process is scheduled on a cpu, then disabling bh to process > _one_ packet wont fundamentally change dynamic of the system. > After looking at the code for a while, I agree it won't be a great change. Thanks -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
