On Tue, Apr 14, 2015 at 6:24 AM, yangruifeng.09209@xxxxxxx
<yangruifeng.09209@xxxxxxx> wrote:
> Hi all！
>
>
>
> I am testing rbd performance based on kernel rbd dirver, when I compared the
> result of the kernel 3.13.6 with 3.18.11, my head gets so confused.
>
>
>
> look at the result, down by a third.
>
>
>
> 3.13.6 IOPS
>
> 3.18.11 IOPS
>
> 4KB seq read
>
> 97169
>
> 23714
>
> 4KB seq write
>
> 10110
>
> 3177
>
> 4KB rand read
>
> 7589
>
> 4565
>
> 4KB rand write
>
> 10497
>
> 2307
How exactly are you getting these numbers? Which tools are you using, which
tests are you running, in which order?
Thanks,
Ilya
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