From: Jason Wang <jasowang@xxxxxxxxxx> Date: Fri, 1 Nov 2013 14:07:48 +0800 > 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 > before commit 2613af0ed18a11d5c566a81f9a6510b73180660a). ... > Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx> > Cc: Michael S. Tsirkin <mst@xxxxxxxxxx> > Cc: Michael Dalton <mwdalton@xxxxxxxxxx> > Cc: Eric Dumazet <edumazet@xxxxxxxxxx> > Acked-by: Michael S. Tsirkin <mst@xxxxxxxxxx> > Acked-by: Eric Dumazet <edumazet@xxxxxxxxxx> > Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx> > --- > Changes from V2: > - call put_page() instead of depending on skb_coalesce_rx_frag() Looks fantastic, applied, thanks Jason! _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
