diff options
| author | Jason Wang <jasowang@redhat.com> | 2013-04-10 23:32:22 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-04-11 20:21:57 (GMT) |
| commit | c0317998c340203204ee7622d75a59f41ac13bc6 (patch) | |
| tree | 8129faf92a06ed79310c70dbe307c2501f18e980 /virt | |
| parent | 4fda830263c52a58bcbaedeb091cbcd421cf4858 (diff) | |
| download | linux-c0317998c340203204ee7622d75a59f41ac13bc6.tar.xz | |
tuntap: initialize vlan_features
The vlan_features was zero which prevents vlan GSO packets to be transmitted to
userspace. This is suboptimal so enable this by initialize vlan_features for
tuntap.
Netperf shows better performance of guest receiving since vlan TSO works for
tuntap:
before:
netperf -H 192.168.5.4
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.5.4 ()
port 0 AF_INET : demo
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.01 2786.67
after:
netperf -H 192.168.5.4
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.5.4 ()
port 0 AF_INET : demo
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.00 8085.49
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'virt')
0 files changed, 0 insertions, 0 deletions