Fast XML Parsing with Haskell
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Haskell has lots of XML parsing libraries, implemented using different techniques, and offering different levels of performance. In this talk, you will learn why, until recently, even the fastest of these libraries was embarrassingly slow compared to state-of-the-art XML parsers. Neil will share how the issue was rectified, with the introduction of the Hexml and Xeno libraries. Hexml uses the Foreign Function Interface (FFI), pushing much of the actual work into C, showing how to move performance sensitive pieces into C and reintegrate them without excessive overhead. In contrast, Xeno is written in pure Haskell, using special development/testing techniques to ensure the optimised code performs comparably to Hexml. You will explore the comparison between these different approaches, and see how they apply beyond just XML parsing.
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Thanks to our sponsors
Fast XML Parsing with Haskell
Neil Mitchell
Neil Mitchell is a Haskell programmer who lives in Cambridge with his wife Emily and his son Henry. Neil has a PhD in Computer Science from York University, working on making functional programs shorter, faster and safer. Since then he's worked with F# at Credit Suisse and Haskell/F#/C++ at Standard Chartered and Barclays, taking the lessons of functional programming and applying them in finance.
Please log in to watch this conference skillscast.
Haskell has lots of XML parsing libraries, implemented using different techniques, and offering different levels of performance. In this talk, you will learn why, until recently, even the fastest of these libraries was embarrassingly slow compared to state-of-the-art XML parsers. Neil will share how the issue was rectified, with the introduction of the Hexml and Xeno libraries. Hexml uses the Foreign Function Interface (FFI), pushing much of the actual work into C, showing how to move performance sensitive pieces into C and reintegrate them without excessive overhead. In contrast, Xeno is written in pure Haskell, using special development/testing techniques to ensure the optimised code performs comparably to Hexml. You will explore the comparison between these different approaches, and see how they apply beyond just XML parsing.
YOU MAY ALSO LIKE:
- HaskellX Bytes with Neil Mitchell! (SkillsCast recorded in July 2017)
- Masterclass: Reducing Technical Debt with Michael C. Feathers (in London on 28th - 29th October 2019)
- Advanced Scala with Dick Wall (in London on 9th - 11th December 2019)
- FullStack London 2019 - The Conference on JavaScript, Node & Internet of Things (in London on 10th - 12th July 2019)
- Haskell eXchange 2019 (in London on 10th - 11th October 2019)
- Keynote by Konrad Kokosa: What’s New in .NET Core 3.0 and .NET 5.0 for Performance and Memory-Aware Folks? (in London on 29th October 2019)
- Take your HTTP Server to Ludicrous Speed (SkillsCast recorded in May 2019)
- Designing Software Autistically (SkillsCast recorded in March 2019)
Thanks to our sponsors
Fast XML Parsing with Haskell
Neil Mitchell
Neil Mitchell is a Haskell programmer who lives in Cambridge with his wife Emily and his son Henry. Neil has a PhD in Computer Science from York University, working on making functional programs shorter, faster and safer. Since then he's worked with F# at Credit Suisse and Haskell/F#/C++ at Standard Chartered and Barclays, taking the lessons of functional programming and applying them in finance.