By Alexander Dymo
You wouldn't have to just accept gradual Ruby or Rails functionality. during this finished advisor to Ruby optimization, you will how one can write quicker Ruby code--but that is just the start. See precisely what makes Ruby and Rails code gradual, and the way to mend it. Alex Dymo will consultant you thru perils of reminiscence and CPU optimization, profiling, measuring, functionality checking out, rubbish assortment, and tuning. you will discover that each one these "hard" issues will not be so tough in spite of everything, and your code will run orders of value faster.
This is the 1st ebook ever that consolidates the entire Ruby functionality optimization recommendation in a single position. it is your accomplished advisor to reminiscence optimization, CPU optimization, rubbish collector tuning, profiling, measurements, functionality trying out, and more.
You'll pass from functionality rookie to specialist. First, you will study the simplest practices for writing Ruby code that is effortless not just at the CPU, but in addition on reminiscence, and that does not set off the scary rubbish collector. you will find out that rubbish assortment money owed for eighty% of slowdowns, and infrequently takes greater than 50% of your program's execution time. and you may observe the bottlenecks in Rails code and find out how selective characteristic loading and preloading can mitigate the functionality expenditures of ActiveRecord.
As you strengthen to Ruby functionality specialist, you are going to learn the way profile your code, tips on how to make experience out of profiler experiences, and the way to make optimization judgements in line with them. you will ensure gradual code does not creep again into your Ruby program via writing functionality checks, and you may study the way to benchmark Ruby.
And eventually, you will dive into the Ruby interpreter internals to actually comprehend why rubbish assortment makes Ruby so sluggish, and the way you could song it up.
What You Need:
Some model of Ruby. the recommendation from this e-book applies to all glossy Ruby models from 1.9 to 2.2. eighty% of the cloth can be valuable for legacy Ruby 1.8 clients, and there's 1.8-specific suggestion as well.
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Extra resources for Ruby Performance Optimization: Why Ruby is Slow, and How to Fix It
Ruby Performance Optimization: Why Ruby is Slow, and How to Fix It by Alexander Dymo