Mark Allman / ICSI @mallman_icsi

Mohan Dhawan, Justin Samuel, Renata Teixeira, Christian Kreibich, Mark Allman, Nicholas Weaver, Vern Paxson. Fathom: A Browser-based Network Measurement Platform, ACM Internet Measurement Conference, November 2012.
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For analyzing network performance issues, there can be great utility in having the capability to measure directly from the perspective of end systems. Because end systems do not provide any external programming interface to measurement functionality, obtaining this capability today generally requires installing a custom executable on the system, which can prove prohibitively expensive. In this work we leverage the ubiquity of web browsers to demonstrate the possibilities of browsers themselves offering such a programmable environment. We present Fathom, a Firefox extension that implements a number of measurement primitives that enable websites or other parties to program network measurements using JavaScript. Fathom is lightweight, imposing < 3.2% overhead in page load times for popular web pages, and often provides 1~ms timestamp accuracy. We demonstrate Fathom's utility with three case studies: providing a JavaScript version of the Netalyzr network characterization tool, debugging web access failures, and enabling web sites to diagnose performance problems of their clients.


    author    =        "Mohan Dhawan and Justin Samuel and Renata Teixeira and Christian Kreibich and Mark Allman and Nicholas Weaver and Vern Paxson",
    title     =        "{Fathom: A Browser-based Network Measurement Platform}",
    booktitle =        "ACM SIGCOMM/USENIX Internet Measurement Conference",
    year      =        2012,
    month     =        nov,

Runner up for Best Paper at IMC 2012.
"We are what we repeatedly do. Excellence, then, is not an act, but a habit." --Aristotle