Messages in this thread | | | From | Asias He <> | Subject | [PATCH V6 0/2] Improve virtio-blk performance | Date | Tue, 7 Aug 2012 16:47:13 +0800 |
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Hi, all
This version reworked on REQ_FLUSH and REQ_FUA support as suggested by Christoph and dropped the block core bits since Jens has picked them up.
Fio test shows bio-based IO path gives the following performance improvement:
1) Ramdisk device With bio-based IO path, sequential read/write, random read/write IOPS boost : 28%, 24%, 21%, 16% Latency improvement: 32%, 17%, 21%, 16% 2) Fusion IO device With bio-based IO path, sequential read/write, random read/write IOPS boost : 11%, 11%, 13%, 10% Latency improvement: 10%, 10%, 12%, 10%
Asias He (2): virtio-blk: Add bio-based IO path for virtio-blk virtio-blk: Add REQ_FLUSH and REQ_FUA support to bio path
drivers/block/virtio_blk.c | 306 +++++++++++++++++++++++++++++++++++++++------ 1 file changed, 268 insertions(+), 38 deletions(-)
-- 1.7.11.2
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