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Haskell High Performance Programming

Haskell High Performance Programming

By : Thomasson
3 (2)
close
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

Summary of useful RTS options


The following sections describe flags for controlling the Runtime System's behavior. The exact set of flags available depend on how the Runtime System was configured (via GHC flags).

Scheduler flags

The number of capabilities (OS threads) to use is controlled with N<n>:. This can be changed with setNumCapabilities. (default: 1)

Memory management

These are flags for controlling used heap and stack size:

  • -H<size>: Minimum heap size (default: 0)

  • -M<size>: Maximum heap size (default: unlimited)

  • -ki<size>: Minimum stack size (default: 512k)

  • -K<size>: Maximum stack size (default: 80% system memory)

Garbage collection

These are flags for controlling the generational garbage collector:

  • -G<n>: Number of GC generations (default: 2)

  • -qg<gen>: Minimum generation to apply parallel GC to (default: 0)

  • -qb<gen>: Minimum generation in parallel GC to apply load-balancing (default: 1)

  • -c: Enable compacting algorithm for oldest generation

Runtime...

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