From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luke Gorrie Subject: Re: [PATCH] Implement memcmp using AVX/SSE instructio Date: Thu, 23 Apr 2015 10:21:16 +0200 Message-ID: References: <1429716828-19012-1-git-send-email-rkerur@gmail.com> <1429716828-19012-2-git-send-email-rkerur@gmail.com> <55389E44.8030603@intel.com> <20150423081138.GA8592@bricha3-MOBL3> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Cc: "dev-VfR2kkLFssw@public.gmane.org" To: Bruce Richardson Return-path: In-Reply-To: <20150423081138.GA8592@bricha3-MOBL3> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org Sender: "dev" On 23 April 2015 at 10:11, Bruce Richardson wrote: > Also, if I read your quoted performance numbers in your earlier mail > correctly, > we are only looking at a 1-4% performance increase. Is the additional code > to > maintain worth the benefit? > ... and if so, how would one decide whether it is better to to add this to DPDK vs contribute it to GNU libc? Pawel noted that this is not compatible with memcmp(3). It is very similar to the legacy function bcmp(3) though so perhaps libc would accept it as such. Cheers, -Luke