Jason Wang 70181d5120 vhost_net: remove tx polling state ... After commit 2b8b328b61 (vhost_net: handle polling errors when setting backend), we in fact track the polling state through poll->wqh, so there's no need to duplicate the work with an extra vhost_net_polling_state. So this patch removes this and make the code simpler. This patch also removes the all tx starting/stopping code in tx path according to Michael's suggestion. Netperf test shows almost the same result in stream test, but gets improvements on TCP_RR tests (both zerocopy or copy) especially on low load cases. Tested between multiqueue kvm guest and external host with two direct connected 82599s. zerocopy disabled: sessions|transaction rates|normalize| before/after/+improvements 1 | 9510.24/11727.29/+23.3% | 693.54/887.68/+28.0% | 25| 192931.50/241729.87/+25.3% | 2376.80/2771.70/+16.6% | 50| 277634.64/291905.76/+5% | 3118.36/3230.11/+3.6% | zerocopy enabled: sessions|transaction rates|normalize| before/after/+improvements 1 | 7318.33/11929.76/+63.0% | 521.86/843.30/+61.6% | 25| 167264.88/242422.15/+44.9% | 2181.60/2788.16/+27.8% | 50| 272181.02/294347.04/+8.1% | 3071.56/3257.85/+6.1% | Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2013-04-11 16:16:22 -04:00
..
Kconfig	drivers/vhost: remove depends on CONFIG_EXPERIMENTAL	2013-01-21 14:52:45 -08:00
Kconfig.tcm	drivers/vhost: remove depends on CONFIG_EXPERIMENTAL	2013-01-21 14:52:45 -08:00
Makefile	tcm_vhost: Initial merge for vhost level target fabric driver	2012-07-29 13:49:10 -07:00
net.c	vhost_net: remove tx polling state	2013-04-11 16:16:22 -04:00
tcm_vhost.c	tcm_vhost: Avoid VIRTIO_RING_F_EVENT_IDX feature bit	2013-03-28 23:42:47 -07:00
tcm_vhost.h	tcm_vhost: Multi-queue support	2013-02-13 11:30:14 -08:00
test.c	vhost: Separate vhost-net features from vhost features	2012-07-22 01:21:53 +03:00
test.h	vhost test module	2010-12-09 16:00:21 +02:00
vhost.c	vhost_net: remove tx polling state	2013-04-11 16:16:22 -04:00
vhost.h	vhost_net: handle polling errors when setting backend	2013-01-29 15:43:03 -05:00