Asias He 1b7f390eb3 tcm_vhost: Multi-queue support ... This adds virtio-scsi multi-queue support to tcm_vhost. In order to use multi-queue, guest side multi-queue support is need. It can be found here: https://lkml.org/lkml/2012/12/18/166 Currently, only one thread is created by vhost core code for each vhost_scsi instance. Even if there are multi-queues, all the handling of guest kick (vhost_scsi_handle_kick) are processed in one thread. This is not optimal. Luckily, most of the work is offloaded to the tcm_vhost workqueue. Some initial perf numbers: 1 queue, 4 targets, 1 lun per target 4K request size, 50% randread + 50% randwrite: 127K/127k IOPS 4 queues, 4 targets, 1 lun per target 4K request size, 50% randread + 50% randwrite: 181K/181k IOPS Signed-off-by: Asias He <asias@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>		2013-02-13 11:30:14 -08:00
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Kconfig	tcm_vhost: Initial merge for vhost level target fabric driver	2012-07-29 13:49:10 -07:00
Kconfig.tcm	tcm_vhost: Initial merge for vhost level target fabric driver	2012-07-29 13:49:10 -07:00
Makefile	tcm_vhost: Initial merge for vhost level target fabric driver	2012-07-29 13:49:10 -07:00
net.c	vhost_net: handle polling errors when setting backend	2013-01-29 15:43:03 -05:00
tcm_vhost.c	tcm_vhost: Multi-queue support	2013-02-13 11:30:14 -08:00
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: handle polling errors when setting backend	2013-01-29 15:43:03 -05:00
vhost.h	vhost_net: handle polling errors when setting backend	2013-01-29 15:43:03 -05:00