Messages in this thread | | | From | Wanlong Gao <> | Subject | [PATCH 0/5] virtio-scsi: create a separate workqueue | Date | Wed, 7 Nov 2012 18:18:09 +0800 |
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patch 1-3,5 are some cleanups. patch 4: create a separate work queue for virtio-scsi to improve the performance, I tested with tmpfs backed disk, the config file is like below, [global] bsrange=4k-64k ioengine=libaio direct=1 iodepth=4 loops=10 size=64M
Before: Disk stats (read/write): sda: ios=6547/5275, merge=37/39, ticks=3144/2645, in_queue=5780, util=81.62% sdb: ios=6542/5277, merge=54/59, ticks=3234/3143, in_queue=6364, util=84.50% sdc: ios=6532/5244, merge=65/62, ticks=3440/3076, in_queue=6505, util=86.83%
After: Disk stats (read/write): sda: ios=6349/5318, merge=77/89, ticks=4820/3169, in_queue=7991, util=90.62% sdb: ios=6364/5358, merge=39/53, ticks=3810/2816, in_queue=6615, util=84.63% sdc: ios=6458/5352, merge=74/47, ticks=4425/3048, in_queue=7459, util=88.41%
Wanlong Gao (5): virtio-scsi: remove the useless assignment virtio-scsi: remove the needless variable gfp_mask virtio-scsi: use pr_err instead of printk virtio-scsi: create a separate work queue for virtio-scsi virtio-scsi: tidy up the goto label in init()
Cc: James E.J. Bottomley <JBottomley@parallels.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: linux-scsi@vger.kernel.org Cc: kvm@vger.kernel.org drivers/scsi/virtio_scsi.c | 43 +++++++++++++++++++++++-------------------- 1 file changed, 23 insertions(+), 20 deletions(-)
-- 1.8.0
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