[PATCH net-next v7 0/4] net: vhost: improve performance when enable busyloop

[xiangxia.m.yue@gmail.com]

From: Tonghao Zhang <xiangxia.m.yue@gmail.com>

This patches improve the guest receive performance.
On the handle_tx side, we poll the sock receive queue
at the same time. handle_rx do that in the same way.

For more performance report, see patch 4.

v6->v7:
fix issue and rebase codes:
1. on tx, busypoll will vhost_net_disable/enable_vq rx vq.
[This is suggested by Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>]

2. introduce common helper vhost_net_busy_poll_try_queue().

v5->v6:
rebase the codes.

Tonghao Zhang (4):
  net: vhost: lock the vqs one by one
  net: vhost: replace magic number of lock annotation
  net: vhost: factor out busy polling logic to vhost_net_busy_poll()
  net: vhost: add rx busy polling in tx path

 drivers/vhost/net.c   | 168 +++++++++++++++++++++++++++++++-------------------
 drivers/vhost/vhost.c |  24 +++-----
 2 files changed, 113 insertions(+), 79 deletions(-)

-- 
1.8.3.1