Hi all: This series tries to implement rx batching for vhost-net. This is done by batching the dequeuing from skb_array which was exported by underlayer socket and pass the sbk back through msg_control to finish userspace copying.
Tests shows at most 19% improvment on rx pps. Please review. Thanks Changes from V1: - switch to use for() in __ptr_ring_consume_batched() - rename peek_head_len_batched() to fetch_skbs() - use skb_array_consume_batched() instead of skb_array_consume_batched_bh() since no consumer run in bh - drop the lockless peeking patch since skb_array could be resized, so it's not safe to call lockless one Jason Wang (7): ptr_ring: introduce batch dequeuing skb_array: introduce batch dequeuing tun: export skb_array tap: export skb_array tun: support receiving skb through msg_control tap: support receiving skb from msg_control vhost_net: try batch dequing from skb array drivers/net/tap.c | 25 +++++++++++++++--- drivers/net/tun.c | 31 ++++++++++++++++------ drivers/vhost/net.c | 64 +++++++++++++++++++++++++++++++++++++++++++--- include/linux/if_tap.h | 5 ++++ include/linux/if_tun.h | 5 ++++ include/linux/ptr_ring.h | 65 +++++++++++++++++++++++++++++++++++++++++++++++ include/linux/skb_array.h | 25 ++++++++++++++++++ 7 files changed, 204 insertions(+), 16 deletions(-) -- 2.7.4
