Re: [PATCH net-next V2] tun: introduce tx skb ring

Jason Wang
2016-06-16T07:08:42Z

On 2016年06月15日 19:55, Jamal Hadi Salim wrote:
> On 16-06-15 07:52 AM, Jamal Hadi Salim wrote:
>> On 16-06-15 04:38 AM, Jason Wang wrote:
>>> We used to queue tx packets in sk_receive_queue, this is less
>>> efficient since it requires spinlocks to synchronize between producer
>> So this is more exercising the skb array improvements. For tun
>> it would be useful to see general performance numbers on user/kernel
>> crossing (i.e tun read/write).
>> If you have the cycles can you run such tests?
>>
> Ignore my message - you are running pktgen from a VM towards the host.

Actually reversed, test were done from an external host to VM.

Thanks

> So the numbers you posted are what i was interested in.
> Thanks for the good work.
>
> cheers,
> jamal
>