linux/drivers/vhost
Jason Wang f7c6be404d vhost_net: correctly limit the max pending buffers
As Michael point out, We used to limit the max pending DMAs to get better cache
utilization. But it was not done correctly since it was one done when there's no
new buffers submitted from guest. Guest can easily exceeds the limitation by
keeping sending packets.

So this patch moves the check into main loop. Tests shows about 5%-10%
improvement on per cpu throughput for guest tx.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03 22:46:58 -04:00
..
Kconfig vhost: Make vhost a separate module 2013-07-07 17:33:44 +03:00
Makefile vhost: Make vhost a separate module 2013-07-07 17:33:44 +03:00
net.c vhost_net: correctly limit the max pending buffers 2013-09-03 22:46:58 -04:00
scsi.c vhost: more fixes for 3.11 2013-07-23 14:38:20 -07:00
test.c vhost: Remove custom vhost rcu usage 2013-07-11 15:38:40 +03:00
test.h vhost test module 2010-12-09 16:00:21 +02:00
vhost.c vhost: switch to use vhost_add_used_n() 2013-09-03 22:46:57 -04:00
vhost.h vhost: Remove custom vhost rcu usage 2013-07-11 15:38:40 +03:00
vringh.c Add missing module license tag to vring helpers. 2013-05-08 10:49:03 +09:30