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SubjectRe: [Xen-devel] [PATCH v2 00/20] xen/arm64: Add support for 64KB page
On 09/07/15 21:42, Julien Grall wrote:
> Average betwen 10 iperf :
>
> DOM0 Guest Result
>
> 4KB-mod 64KB 3.176 Gbits/sec
> 4KB-mod 4KB-mod 3.245 Gbits/sec
> 4KB-mod 4KB 3.258 Gbits/sec
> 4KB 4KB 3.292 Gbits/sec
> 4KB 4KB-mod 3.265 Gbits/sec
> 4KB 64KB 3.189 Gbits/sec
>
> 4KB-mod: Linux with the 64KB patch series
> 4KB: linux/master
>
> The network performance is slightly worst with this series (-0.15%). I suspect,
> this is because of using an indirection to setup the grant. This is necessary
> in order to ensure that the grant will be correctly sized no matter of the
> Linux page granularity. This could be used later in order to support bigger
> grant.

I didn't compute correctly the result. It's -1.5% and not -0.15% sorry.

--
Julien Grall


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