Download Clojure High Performance Programming (2nd Edition) by Shantanu Kumar PDF
By Shantanu Kumar
Become a professional at writing quickly and excessive performant code in Clojure 1.7.0
About This Book
• increase code functionality through the use of applicable Clojure features
• enhance the potency of functions and plan their deployment
• A hands-on advisor to designing Clojure courses to get the simplest performance
Who This ebook Is For
This e-book is meant for intermediate Clojure builders who're seeking to get an excellent grip on reaching optimal functionality. Having a easy wisdom of Java will be helpful.
What you'll Learn
• establish functionality concerns in Clojure courses utilizing diverse profiling tools
• grasp recommendations to accomplish numerical functionality in Clojure
• Use Criterium library to degree latency of Clojure expressions
• take advantage of Java positive aspects in Clojure code to augment performance
• steer clear of mirrored image and boxing with sort hints
• comprehend Clojure's concurrency and state-management primitives in depth
• degree and video display functionality, and comprehend optimization techniques
In Detail
Clojure treats code as information and has a macro approach. It makes a speciality of programming with immutable values and particular progression-of-time constructs, that are meant to facilitate the advance of extra powerful courses, rather multithreaded ones. it truly is outfitted with functionality, pragmatism, and ease in brain. Like so much normal goal languages, quite a few Clojure beneficial properties have assorted functionality features that one should still comprehend with a view to write excessive functionality code.
This e-book indicates you ways to guage the functionality implications of assorted Clojure abstractions, realize their underpinnings, and practice the correct strategy for maximum functionality in real-world programs.
It starts off via aiding you classify a variety of use instances and the necessity for them with appreciate to functionality and research of varied functionality elements. additionally, you will research the functionality vocabulary that specialists use during the global and realize quite a few Clojure information buildings, abstractions, and their functionality features. additional, the e-book will consultant you thru bettering functionality by utilizing Java interoperability and JVM-specific good points from Clojure. It additionally highlights the significance of utilizing the ideal concurrent information constitution and Java concurrency abstractions.
This publication additionally sheds gentle on functionality metrics for measuring, easy methods to degree, and the way to imagine and video display the amassed info. on the finish of the publication, you are going to discover ways to run a functionality profiler, determine bottlenecks, track functionality, and refactor code to get a greater performance.
Style and approach
An easy-to-follow consultant jam-packed with real-world examples and self-sufficient code snippets to help you get your palms soiled with excessive functionality programming with Clojure.
Read or Download Clojure High Performance Programming (2nd Edition) PDF
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Extra resources for Clojure High Performance Programming (2nd Edition)
Sample text
From a code-centric view, a class is a collection of functions and variables working together to support a common goal. When you get to the heart of it, though, classes handle custom data. The variables in a class store the data and functions manipulate the data. Classes provide a powerful and self-contained way of organizing and processing every type of custom data you can possibly think of. 2 Objects. Classes cannot do any real work themselves—for that they need to be instantiated as objects.
All cars have fuel tanks, so this behavior is easy to repeat for any car. OOP calls this concept polymorphism. qxd 6/13/07 1:35 PM Page 9 INTRODUCTION TO OOP Much like cars need fuel to run, I take my daily dose of vitamins by drinking a glass of orange juice at breakfast. This incidentally brings me to a great example showing the concept of polymorphism. 1 Oranges have pulp. Lemons have pulp. Grapefruits have pulp. Cut any of these fruit open, I dare you, and try to scoop out the fruit with a spoon.
Wouldn’t you be frustrated to rebuild from scratch what a few simple notes could have avoided? The preceding situations are some of the most common reasons why people tend to think that planning is not necessary. These examples show that even in these circumstances planning is a very important part of the development process. As I briefly discussed in the introduction to this chapter, you can look at planning as an object-oriented process. qxd 6/1/07 12:45 PM Page 39 PLANNING objects in OOP, and each have their own particular role to play in the bigger whole.