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(parent: 5371d95) | patch
vhost: lockless enqueuing
authorJason Wang <jasowang@redhat.com>
Tue, 26 Apr 2016 02:14:33 +0000 (22:14 -0400)
committerMichael S. Tsirkin <mst@redhat.com>
Mon, 1 Aug 2016 18:44:51 +0000 (21:44 +0300)
commiteba4b39372621265b775d420d0487f8dfff0b3d1
tree35cef78e529e6fb49c34159f58d19fb07f54de3etree | snapshot
parent5371d95d94921d3c3df36cd7e2a3936e2f052906commit | diff
vhost: lockless enqueuing

We use spinlock to synchronize the work list now which may cause
unnecessary contentions. So this patch switch to use llist to remove
this contention. Pktgen tests shows about 5% improvement:

Before:
~1300000 pps
After:
~1370000 pps

Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
drivers/vhost/vhost.c diff | blob | history
drivers/vhost/vhost.h diff | blob | history
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