[dpdk-dev] [PATCH 0/2] net/virtio: optimize virtio net header reset

Yuanhan Liu yuanhan.liu at linux.intel.com
Wed Jan 11 05:27:10 CET 2017

This two patches optimized the virtio net header reset when TSO is not
actually used (though it could be enabled). The basic idea is to not reset
(assign 0) when it's already 0. This could avoid some severe cache issues.
Micro benchmarking shows it could boost the performance up to 20+%.

Yuanhan Liu (2):
  net/virtio: fix performance regression due to TSO enabling
  net/virtio: optimize header reset on any layout

 drivers/net/virtio/virtio_rxtx.c | 28 ++++++++++++++++++++--------
 1 file changed, 20 insertions(+), 8 deletions(-)


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