Messages in this thread | | | Date | Mon, 3 Dec 2012 13:18:48 +0200 | From | "Michael S. Tsirkin" <> | Subject | Re: [net-next rfc v7 1/3] virtio-net: separate fields of sending/receiving queue from virtnet_info |
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On Mon, Dec 03, 2012 at 01:15:01PM +0800, Jason Wang wrote: > > > + > > > > + /* Work struct for refilling if we run low on memory. */ > > > > + struct delayed_work refill; > > > > > > I can't really see the justificaiton for a refill per queue. Just have > > > one work iterate all the queues if it happens, unless it happens often > > > (in which case, we need to look harder at this anyway). > > > > But during this kind of iteration, we may need enable/disable the napi > regardless of whether the receive queue has lots to be refilled. This may add > extra latency.
We are running from the timer, so latency is not a concern I think.
-- MST
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