[sheepdog-users] Is qemu faster than sbd?

Liu Yuan namei.unix at gmail.com
Fri Aug 21 07:58:19 CEST 2015


On Thu, Aug 20, 2015 at 04:47:22PM +0000, zhanghongzhou wrote:
> Hi experts,
> I mounted sbd as ext4 and tested IOPS for 4k rand/seq rw
> 32 sheep, 3-replica. Backend is ssd.
> The result is much slower than testing on bear ssd.randread IOPS: 16732randwrite IOPS: 1436sequential read throughput: 64MB/ssequential write throughput: 6MB/s
> I saw some qemu fio test results from COJ2015 presentation, which is much better.
> Is my sbd performance result solid? Or maybe it's configuration difference?
> B.R.Hongzhou 		 	   		  

Please add '-n' to sheep startup option for best performance.

Thanks,
Yuan


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