The following came from the NANOG list. It's IPv6 data, not performance info, but it's nice that we're getting mileage from the SamKnows infrastructure...
Rich > Begin forwarded message: > > From: [email protected] > Subject: NANOG Digest, Vol 104, Issue 5 > Date: September 6, 2016 at 8:00:01 AM EDT > To: [email protected] > Reply-To: [email protected] > > Send NANOG mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://mailman.nanog.org/mailman/listinfo/nanog > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of NANOG digest..." > > > Today's Topics: > > 1. measuring web similarity from dual-stacked hosts > (Bajpai, Vaibhav) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 5 Sep 2016 12:36:35 +0000 > From: "Bajpai, Vaibhav" <[email protected]> > To: "[email protected]" <[email protected]> > Subject: measuring web similarity from dual-stacked hosts > Message-ID: > <[email protected]> > Content-Type: text/plain; charset="utf-8" > > Dear NANOG, > > Measuring Web Similarity from Dual-stacked Hosts > ------------------------------------------------ > > How similar are the webpages accessed over IPv6 to their IPv4 counterparts? ? > In situations where the content is dissimilar over IPv4 and IPv6, what factors > contribute to the dissimilarity? > > To answer ^ we developed a tool (simweb) and deployed it on 80 geographically > distributed dual-stacked SamKnows probes. A paper presenting results from the > collected dataset got accepted recently. We just released the tool and the > paper [a]. Thought to share it along. > > [a] http://goo.gl/sAsDcG > > Feedback most welcome! > You may recall a presentation of this work at RIPE 72 [b]. > > [b] https://ripe72.ripe.net/archives/video/126 > > Abstract > -------- > > We compare the similarity of webpages delivered over IPv4 and IPv6. Using the > SamKnows web performance (webget) test, we implemented an extension (simweb) > that allows us to measure the similarity of webpages. The simweb test measures > against ALEXA top 100 dual-stacked websites from 80 SamKnows probes connected > to dual-stacked networks representing 58 different ASes. Using a two > months-long dataset we show that 14% of these dual-stacked websites exhibit a > dissimilarity in the number of fetched webpage elements, with 94% of them > exhibiting a dissimilarity in their size. We show that 6% of these websites > announce AAAA entries in the DNS but no content is delivered over IPv6 when an > HTTP request is made. We also noticed several cases where not all webpage > elements (such as images, javascript and CSS) of a dual-stacked website are > available over IPv6. We show that 27% of the dual-stacked websites have some > fraction of webpage elements that fail over IPv6, with 9% of the websites > having more than 50% webpage elements that fail over IPv6. We perform a > causality analysis and also identify sources for these failing elements. We > show that 12% of these websites have more than 50% webpage elements that > belong to the same origin source and fail over IPv6. Failure rates are largely > affected by DNS resolution error on images, javascript and CSS content > delivered from both same-origin and cross-origin sources. These failures tend > to cripple experience for users behind an IPv6-only network and a > quantification of failure cases may help improve IPv6 adoption on the > Internet. > > -- Vaibhav > > =================================== > Vaibhav Bajpai > www.vaibhavbajpai.com > > Postdoctoral Researcher > Jacobs University Bremen, Germany > =================================== > > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: signature.asc > Type: application/pgp-signature > Size: 496 bytes > Desc: Message signed with OpenPGP using GPGMail > URL: > <http://mailman.nanog.org/pipermail/nanog/attachments/20160905/20fa36d2/attachment-0001.pgp> > > End of NANOG Digest, Vol 104, Issue 5 > ************************************* _______________________________________________ Bloat mailing list [email protected] https://lists.bufferbloat.net/listinfo/bloat
