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Haskell High Performance Programming

Haskell High Performance Programming

By : Thomasson
3 (2)
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Haskell High Performance Programming

Haskell High Performance Programming

3 (2)
By: Thomasson

Overview of this book

Haskell, with its power to optimize the code and its high performance, is a natural candidate for high performance programming. It is especially well suited to stacking abstractions high with a relatively low performance cost. This book addresses the challenges of writing efficient code with lazy evaluation and techniques often used to optimize the performance of Haskell programs. We open with an in-depth look at the evaluation of Haskell expressions and discuss optimization and benchmarking. You will learn to use parallelism and we'll explore the concept of streaming. We’ll demonstrate the benefits of running multithreaded and concurrent applications. Next we’ll guide you through various profiling tools that will help you identify performance issues in your program. We’ll end our journey by looking at GPGPU, Cloud and Functional Reactive Programming in Haskell. At the very end there is a catalogue of robust library recommendations with code samples. By the end of the book, you will be able to boost the performance of any app and prepare it to stand up to real-world punishment.
Table of Contents (16 chapters)
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15
Index

Pretty-printing and text formatting


The libraries in this subsection are as follows:

  • wl-pprint-* packages: Pretty-printers based on Wadler/Leijen pretty-printers. Multiple implementations with different features are found in similarly named libraries.

  • text-format: High-performance text formatting.

  • interpolateInterpolate: Simple string interpolation using Template Haskell.

  • here: Docs for Haskell using Template Haskell.

Pretty-printing is the process of turning data into user-friendly text format. Think, for instance, of printing a long string with appropriate line breaks, or printing Haskell values in a friendly way, in other words, commas at the beginning of lines and so on.

The Wadler/Leijen pretty-printer is a simple but powerful interface that has multiple implementations: nearly a dozen packages with wl-pprint in their name. Some add support for ANSI terminal colors, or terminfo support, annotations, one even using a free monad for documents. Unfortunately, no single implementation admits...

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