Name: [1836] Neil Dickson
Member: 81 months
Authored: 10 videos
Description: Hi, I'm a performance optimization enthusiast with an interest for many sorts of tough challenges. I've started Code Cortex, a group working to make software performance easier to improve. My sites are: http://www.neildickson.com/ http://www.codecortex.com/ ...

Performance Optimization Tutorial [ID:832]

a series of video-tutorials by Neil Dickson

This tutorial teaches how to optimize software performance. With some dedication and practice, almost any programmer can learn to get speedups of 2x to 10x.

The tutorial starts by looking at simplifying code, then examines how operations on different data types work to know how to make use of their properties. Next, techniques for reducing or eliminating slow calculations and instructions are examined. Data structure performance optimization is touched on. A large section is devoted to vectorization, as this can consistently lead to large speedups for a wide variety of operations. Finally, example applications are optimized using the techniques examined in the tutorial.

Video Tutorials

1. Performance Optimization Tutorial: Episode 0: Intro to Optimization

This video introduces software performance optimization in general. It also gives an outline of what will be covered in the rest of the tutorial.

2. Performance Optimization Tutorial: Episode 1: Simplification

This video looks at the role of simplification in optimization. Simplification is one of the most important steps in optimization, as it helps give a clearer understanding of how the software works, eliminating unnecessary clutter.

3. Performance Optimization Tutorial: Episode 2: Bits and Bytes, Part 1

This video begins looking at available bit operations and what they do. NOT, OR, AND, XOR, and TEST are examined, allowing us to set, reset, complement, and check individual bits, among a few other things. Next episode will examine operations related to bit-shifting and have our first experiment of the tutorial.

Showmedo is a peer-produced video-tutorials and screencasts site for free and open-source software (FOSS)- with the exception of some club videos, the large majority are free to watch and download.

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Educating the Open-source Community With Showmedo

Although as important as the software it supports, education and documentation are relatively neglected in the Open-source world. Coders love to code, and explaining how best to use or improve the software tends to be deferred or even sidelined.

At Showmedo we believe the community can play a vital role here and also say thanks for the tools and software that make our lives easier. If you have a piece of software you love or a programming langugage you are enthusiastic about, why not make a screencast showing others how to use it? All the stuff you wish you'd been told, the tips, tricks, insights that would have saved you time and frustration.

Screencasting is easier than you think, and we're happy to help you. You can emailus for advice or just use some of the how-to screencasts on the site. This screencasting learning-pathis a good place to start.

Kudos and Thanks for Neil

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