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Subject[PATCH V2 net-next 0/7] vhost-net rx batching
Date
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

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