From mboxrd@z Thu Jan 1 00:00:00 1970 From: Subash Abhinov Kasiviswanathan Subject: Re: [PATCH net-next v2] net: Add sysctl to toggle early demux for tcp and udp Date: Sat, 18 Mar 2017 11:32:45 -0600 Message-ID: References: <1489116660-4244-1-git-send-email-subashab@codeaurora.org> <674d67f5d76f761f3e872dff274a8bda@codeaurora.org> <1489191742.28631.35.camel@edumazet-glaptop3.roam.corp.google.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Cc: Eric Dumazet , Linux Kernel Network Developers , Stephen Hemminger , netdev-owner@vger.kernel.org To: Tom Herbert Return-path: Received: from smtp.codeaurora.org ([198.145.29.96]:56306 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751438AbdCRRdQ (ORCPT ); Sat, 18 Mar 2017 13:33:16 -0400 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: > 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.