[Ksummit-discuss] [CORE TOPIC] Redesign Memory Management layer and more core subsystem

Greg KH greg at kroah.com
Fri Jun 13 17:31:45 UTC 2014

On Fri, Jun 13, 2014 at 11:57:04AM -0500, Christoph Lameter wrote:
> On Thu, 12 Jun 2014, John W. Linville wrote:
> > AF_PACKET provides some level of hardware abstraction without a lot of
> > overhead for networking apps that are prepared to deal with raw frames.
> > Is this the kind of networking API you would propose?
> The kernel is still in the data path and will cause limitations in terms
> of bandwidth and latency.

Of course it will, nothing is "free".  If this is a problem, then run
one of the many different networking stacks that are in userspace that
are tailored to a specific use-case.  The kernel has to provide a
"general" use case stack, that is its job.

greg k-h

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