[PATCH V3 0/2] vhost_net polling optimization

Jason Wang
2016-06-01T05:56:32Z

Hi:

This series tries to optimize vhost_net polling at two points:

- Stop rx polling for reduicng the unnecessary wakeups during
handle_rx().
- Conditonally enable tx polling for reducing the unnecessary
traversing and spinlock touching.

Test shows about 17% improvement on rx pps.

Please review

Changes from V2:
- Don't enable rx vq if we meet an err or rx vq is empty
Changes from V1:
- use vhost_net_disable_vq()/vhost_net_enable_vq() instead of open
coding.
- Add a new patch for conditionally enable tx polling.

Jason Wang (2):
vhost_net: stop polling socket during rx processing
vhost_net: conditionally enable tx polling

drivers/vhost/net.c | 67 ++++++++++++++++++++++++++++-------------------------
1 file changed, 36 insertions(+), 31 deletions(-)

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1.8.3.1