search for: xdp_redirect_map

...as used as the maximum number of descriptors that could be batched. Test were done between two machines with 2.40GHz Intel(R) Xeon(R) CPU E5-2630 connected back to back through ixgbe. Traffic were generated on one remote ixgbe through MoonGen and measure the RX pps through testpmd in guest when do xdp_redirect_map from local ixgbe to tap. RX pps were increased from 3.05 Mpps to 4.00 Mpps (about 31% improvement). One possible concern for this is the implications for TCP (especially latency sensitive workload). Result[1] does not show obvious changes for most of the netperf test (RR, TX, and RX). And we do ge...

...). - tun accept a batch of XDP buff through msg_control and process them in a batch With this tun XDP can benefit from e.g batch transmission during XDP_REDIRECT or XDP_TX. Tests shows 21% improvement on TX pps (from ~3.2Mpps to ~3.9Mpps) while transmitting through testpmd from guest to host by xdp_redirect_map between tap0 and ixgbe. Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/net/tun.c | 36 +++++++++++++++++---------- drivers/vhost/net.c | 71 ++++++++++++++++++++++++++++++++++++----------------- 2 files changed, 71 insertions(+), 36 deletions(-) diff --git a/drivers/net/t...

...ffs in an array and submit them once for every N packets from vhost_net - since TUN can only do native XDP for datacopy packet, to simplify the logic, split datacopy out logic and only do batching for datacopy. With this series, TX PPS can improve about 34% from 2.9Mpps to 3.9Mpps when doing xdp_redirect_map between TAP and ixgbe. Thanks Jason Wang (12): vhost_net: introduce helper to initialize tx iov iter vhost_net: introduce vhost_exceeds_weight() vhost_net: introduce vhost_has_more_pkts() vhost_net: split out datacopy logic vhost_net: batch update used ring for datacopy TX tuntap: ena...