Re: [PATCH bpf-next 0/4] Enable direct receive on AF_XDP sockets

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On Tue, 8 Oct 2019 23:29:59 -0700, Samudrala, Sridhar wrote:
> On 10/8/2019 5:49 PM, Jakub Kicinski wrote:
> > I asked you to add numbers for handling those use cases in the kernel
> > directly.  
> 
> Forgot to explicitly mention that I didn't see any regressions with 
> xdp1, xdp2 or xdpsock in default mode with these patches. Performance 
> remained the same.

I'm not looking for regressions. The in-kernel path is faster, and
should be used for speeding things up rather than a "direct path to
user space". Your comparison should have 3 numbers - current AF_XDP,
patched AF_XDP, in-kernel handling.



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