Messages in this thread | | | From | Rusty Russell <> | Subject | Re: [PATCH net-next 2/2] virtio-net: coalesce rx frags when possible during rx | Date | Fri, 01 Nov 2013 12:43:46 +1030 |
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Jason Wang <jasowang@redhat.com> writes: > Commit 2613af0ed18a11d5c566a81f9a6510b73180660a (virtio_net: migrate mergeable > rx buffers to page frag allocators) try to increase the payload/truesize for > MTU-sized traffic. But this will introduce the extra overhead for GSO packets > received because of the frag list. This commit tries to reduce this issue by > coalesce the possible rx frags when possible during rx. Test result shows the > about 15% improvement on full size GSO packet receiving (and even better than > commit 2613af0ed18a11d5c566a81f9a6510b73180660a).
I don't know about the other users of skb_add_rx_frag, but should this coalesce-if-possible code be built into that?
Thanks, Rusty.
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