On Tue, Feb 14, 2023 at 3:27 PM Xuan Zhuo <xuanzhuo@xxxxxxxxxxxxxxxxx> wrote: > > XDP socket(AF_XDP) is an excellent bypass kernel network framework. The zero > copy feature of xsk (XDP socket) needs to be supported by the driver. The > performance of zero copy is very good. > > ENV: Qemu with vhost. > > vhost cpu | Guest APP CPU |Guest Softirq CPU | PPS > -----------------------------|---------------|------------------|------------ > xmit by sockperf: 90% | 100% | | 318967 > xmit by xsk: 100% | 30% | 33% | 1192064 What's the setup of this test? CPU model/frequency, packet size, zerocopy enabled or not. (I remember I can get better performance with my old laptop through pktgen (about 2Mpps)) Thanks > recv by sockperf: 100% | 68% | 100% | 692288 > recv by xsk: 100% | 33% | 43% | 771670 > > Before achieving the function of Virtio-Net, we also have to let virtio core > support these features: > > 1. virtio core support premapped > 2. virtio core support reset per-queue > 3. introduce DMA APIs to virtio core > > Please review. > > Thanks. > > Xuan Zhuo (10): > virtio_ring: split: refactor virtqueue_add_split() for premapped > virtio_ring: packed: separate prepare code from > virtuque_add_indirect_packed() > virtio_ring: packed: refactor virtqueue_add_packed() for premapped > virtio_ring: split: introduce virtqueue_add_split_premapped() > virtio_ring: packed: introduce virtqueue_add_packed_premapped() > virtio_ring: introduce virtqueue_add_inbuf_premapped() > virtio_ring: add api virtio_dma_map() for advance dma > virtio_ring: introduce dma sync api for virtio > virtio_ring: correct the expression of the description of > virtqueue_resize() > virtio_ring: introduce virtqueue_reset() > > drivers/virtio/virtio_ring.c | 792 ++++++++++++++++++++++++++++------- > include/linux/virtio.h | 29 ++ > 2 files changed, 659 insertions(+), 162 deletions(-) > > -- > 2.32.0.3.g01195cf9f > _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
