[sheepdog-users] Is qemu faster than sbd?

[Michał Chybowski]

Hi,

Are You starting Your sheep daemon with --log level=info parameter?

log level is by default set to debug and it uses a lot of sbd-connected 
host's HDD space and IOPS for log-writing (both kernel log and sheep log)

Regards
Michał Chybowski
Tiktalik.com

W dniu 20.08.2015 o 18:47, zhanghongzhou pisze:
> 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: 16732
> randwrite IOPS: 1436
> sequential read throughput: 64MB/s
> sequential 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
>
>

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