[PATCH V3 0/2] vhost_net polling optimization

From: Jason Wang
Date: Wed Jun 01 2016 - 01:56:45 EST


This series tries to optimize vhost_net polling at two points:

- Stop rx polling for reduicng the unnecessary wakeups during
- 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
- 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(-)