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 <jbottom...@parallels.com> Cc: Paolo Bonzini <pbonz...@redhat.com> Cc: Rusty Russell <ru...@rustcorp.com.au> Cc: linux-s...@vger.kernel.org Cc: k...@vger.kernel.org drivers/scsi/virtio_scsi.c | 43 +++++++++++++++++++++++-------------------- 1 file changed, 23 insertions(+), 20 deletions(-) -- 1.8.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
