Messages in this thread | | | From | Asias He <> | Subject | [PATCH V3 0/3] Improve virtio-blk performance | Date | Fri, 13 Jul 2012 16:38:48 +0800 |
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This patchset implements bio-based IO path for virito-blk to improve performance.
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 (3): block: Introduce __blk_segment_map_sg() helper block: Add blk_bio_map_sg() helper virtio-blk: Add bio-based IO path for virtio-blk
block/blk-merge.c | 117 +++++++++++++++++-------- drivers/block/virtio_blk.c | 203 +++++++++++++++++++++++++++++++++++--------- include/linux/blkdev.h | 2 + 3 files changed, 247 insertions(+), 75 deletions(-)
-- 1.7.10.4
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