[FoRK] [info] (highscalability.com) The Secret to 10 Million Concurrent Connections -The Kernel is the Problem, Not the Solution

Aaron Burt aaron at bavariati.org
Tue May 21 09:45:39 PDT 2013

On Tue, May 21, 2013 at 08:55:13AM -0700, Stephen Williams wrote:
> A basic problem with much of networking is the requirement for
> system calls and context switches per packet or at least per
> connection per I/O.  Ideally, you get and async circular buffer of
> shared memory for input and output.  Then you can process many
> packets with infrequent or no system calls.  That's what I want
> anyway.  You can easily do this with communications concentrators,
> turning connection events into messages.  But using exokernel
> methods, this could all be done in a single box efficiently.

Funny you should mention it.  Looks like Stephen Hemminger is reviving
Polyakov and Van Jacobson's netchannels userspace IP stack.
He's at Vyatta, but it's presumably related to Intel's DPDK work.

(Great guy, I was privileged to admin his test servers at the OSDL.)

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