On Wed, May 10, 2017 at 11:36:12AM +0800, Jason Wang wrote: > 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. This is also the requirement for more batching > implemention on rx path. > > Tests shows at most 8.8% improvment bon rx pps on top of batch zeroing. > > Please review. > > Thanks > > Changes from V3: > - add batch zeroing patch to fix the build warnings
FYI that one's going upstream now. > Changes from V2: > - rebase to net-next HEAD > - use unconsume helpers to put skb back on releasing > - introduce and use vhost_net internal buffer helpers > - renew performance numbers on top of batch zeroing > > 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 (8): > skb_array: introduce skb_array_unconsume > 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 > > Michael S. Tsirkin (2): > ptr_ring: batch ring zeroing > ptr_ring: add ptr_ring_unconsume > > drivers/net/tap.c | 25 ++++++- > drivers/net/tun.c | 31 ++++++-- > drivers/vhost/net.c | 117 +++++++++++++++++++++++++++-- > include/linux/if_tap.h | 5 ++ > include/linux/if_tun.h | 5 ++ > include/linux/ptr_ring.h | 183 > +++++++++++++++++++++++++++++++++++++++++++--- > include/linux/skb_array.h | 31 ++++++++ > 7 files changed, 370 insertions(+), 27 deletions(-) > > -- > 2.7.4
