netdev - Re: [PATCH net-next v2] net: Add sysctl to toggle early demux for tcp and udp

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Message-ID: <e643b82c330eabfa0cef21c480eb6c2c@codeaurora.org>
Date:   Sat, 18 Mar 2017 11:32:45 -0600
From:   Subash Abhinov Kasiviswanathan <subashab@...eaurora.org>
To:     Tom Herbert <tom@...bertland.com>
Cc:     Eric Dumazet <eric.dumazet@...il.com>,
        Linux Kernel Network Developers <netdev@...r.kernel.org>,
        Stephen Hemminger <stephen@...workplumber.org>,
        netdev-owner@...r.kernel.org
Subject: Re: [PATCH net-next v2] net: Add sysctl to toggle early demux for tcp
 and udp

> All these hypotheses are quite testable, and it should be obvious that
> if a patch is supposed to improve performance there should be some
> effort to quantify the impact.

Hi Tom

I ran a single stream unconnected UDPv4 test on an ARM64 system and I 
see
a slight increase in performance (782 -> 788Mbps) with udp demux 
disabled.
A rudimentary app which does a sendto/recvfrom along with some
statistics collection was used for this.

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