[dpdk-dev] [PATCH 0/5] Fixes and enhancements for Tx path in Virtio PMD
Maxime Coquelin
maxime.coquelin at redhat.com
Thu Feb 21 18:45:42 CET 2019
On 2/19/19 11:59 AM, Tiwei Bie wrote:
> Below is a quick (unofficial) performance test (macfwd loop, 64B)
> for the packed ring optimizations in this series on an Intel(R)
> Xeon(R) Gold 6140 CPU @ 2.30GHz platform:
>
> w/o this series:
> packed ring normal/in-order: ~10.4 Mpps
>
> w/ this series:
> packed ring normal: ~10.9 Mpps
> packed ring in-order: ~11.3 Mpps
>
> In the test, we need to make sure that the vhost side is fast enough.
> So 4 forwarding cores are used in vhost side, and 1 forwarding core is
> used in virtio side.
>
> vhost side:
>
> ./x86_64-native-linuxapp-gcc/app/testpmd \
> -l 13,14,15,16,17 \
> --socket-mem 1024,0 \
> --file-prefix=vhost \
> --vdev=net_vhost0,iface=/tmp/vhost0,queues=4 \
> -- \
> --forward-mode=mac \
> -i \
> --rxq=4 \
> --txq=4 \
> --nb-cores 4
>
> virtio side:
>
> ./x86_64-native-linuxapp-gcc/app/testpmd \
> -l 8,9,10,11,12 \
> --socket-mem 1024,0 \
> --single-file-segments \
> --file-prefix=virtio-user \
> --vdev=virtio_user0,path=/tmp/vhost0,queues=4,in_order=1,packed_vq=1 \
> -- \
> --forward-mode=mac \
> -i \
> --rxq=4 \
> --txq=4 \
> --nb-cores 1
>
>
> Tiwei Bie (5):
> net/virtio: fix Tx desc cleanup for packed ring
> net/virtio: fix in-order Tx path for split ring
> net/virtio: fix in-order Tx path for packed ring
> net/virtio: introduce a helper for clearing net header
> net/virtio: optimize xmit enqueue for packed ring
>
> drivers/net/virtio/virtio_ethdev.c | 4 +-
> drivers/net/virtio/virtio_rxtx.c | 203 ++++++++++++++++++++---------
> 2 files changed, 146 insertions(+), 61 deletions(-)
>
Applied to dpdk-next-virtio/master.
Thanks,
Maxime
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