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

On 2016年06月15日 19:55, Jamal Hadi Salim wrote:

On 16-06-15 07:52 AM, Jamal Hadi Salim wrote:

quoted

On 16-06-15 04:38 AM, Jason Wang wrote:

quoted

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