11-13 October 2014
Hyatt Regency Century Plaza
US/Pacific timezone
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Hyatt Regency Century Plaza - Westside
Joint OARC/Tech Day

DNS Rex: Do you need an aggressive benchmarking tool?



Primary authors

Abstract content

DNS Rex: Do you need an aggressive benchmarking tool?

I would like to present DNS Rex, an open source performance benchmark for DNS servers, with a focus on busy DNS caching resolvers. DNS Rex was created to address several known (and rumored) problems with existing DNS testing tools. Our goals included:

  • reliable generation of high query rates,
  • reproducibility of test results,
  • ability to sustain any configurable cache hit ratio,
  • support for long tests without reliance on trace replay,
  • independence from a 3rd-party authoritative server,
  • DNSSEC support.

DNS Rex has been successfully used for private tests, and is publicly available[1], but we have not promoted its wider use. Besides describing what DNS Rex can do today, I would like to gauge audience interest in continued development of the tool. Is there a genuine need for a better DNS benchmark? What missing features are the most important?

[1] http://rex.measurement-factory.com/


A presentation about DNS Rex, a performance testing tool for busy DNS caching resolvers. Why was it created? What can it do? Where do we go from here?