On Tue, Feb 19, 2019 at 09:40:05PM +0800, Jason Wang wrote: > On 2019/2/19 下午6:59, 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 > > > Since your series contain optimization for split ring as well. I wonder > whether you have its numbers as well.
The PPS of split ring in-order (with or without this series) showed by testpmd isn't stable in my above test. So I didn't manage to get some numbers.. > > Thanks > > > > > > 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(-) > >
