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Ruby Performance Optimization : Why Ruby Is Slow, and How to Fix It, Paperbac...
£36.19
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Located in: Castle Donington, United Kingdom
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eBay item number:404892203182
Item specifics
- Condition
- ISBN
- 9781680500691
- Publication Year
- 2015
- Type
- Textbook
- Format
- Paperback
- Language
- English
- Book Title
- Ruby Performance Optimization
- Publisher
- T.H.E. Pragmatic Programmers
- Topic
- Computer Science
- Number of Pages
- 170 Pages
About this product
Product Information
You don't have to accept slow Ruby or Rails performance. In this comprehensive guide to Ruby optimization, you'll learn how to write faster Ruby code--but that's just the beginning. See exactly what makes Ruby and Rails code slow, and how to fix it. Alex Dymo will guide you through perils of memory and CPU optimization, profiling, measuring, performance testing, garbage collection, and tuning. You'll find that all those hard things aren't so difficult after all, and your code will run orders of magnitude faster. This is the first book ever that consolidates all the Ruby performance optimization advice in one place. It's your comprehensive guide to memory optimization, CPU optimization, garbage collector tuning, profiling, measurements, performance testing, and more. You'll go from performance rookie to expert. First, you'll learn the best practices for writing Ruby code that's easy not only on the CPU, but also on memory, and that doesn't trigger the dreaded garbage collector. You'll find out that garbage collection accounts for 80% of slowdowns, and often takes more than 50% of your program's execution time.And you'll discover the bottlenecks in Rails code and learn how selective attribute loading and preloading can mitigate the performance costs of ActiveRecord. As you advance to Ruby performance expert, you'll learn how profile your code, how to make sense out of profiler reports, and how to make optimization decisions based on them. You'll make sure slow code doesn't creep back into your Rails application by writing performance tests, and you'll learn the right way to benchmark Rails. And finally, you'll dive into the Ruby interpreter internals to really understand why garbage collection makes Ruby so slow, and how you can tune it up. What You Need: Some version of Ruby. The advice from this book applies to all modern Ruby versions from 1.9 to 2.2. 80% of the material will also be useful for legacy Ruby 1.8 users, and there is 1.8-specific advice as well.
Product Identifiers
Publisher
T.H.E. Pragmatic Programmers
ISBN-13
9781680500691
eBay Product ID (ePID)
226063830
Product Key Features
Book Title
Ruby Performance Optimization
Format
Paperback
Language
English
Topic
Computer Science
Publication Year
2015
Type
Textbook
Number of Pages
170 Pages
Additional Product Features
Country/Region of Manufacture
United States
Item description from the seller
Business seller information
Far Corner Europe Limited
Barbara Blake
19-20 Bourne Court
Southend Road
Woodford Green
Essex
IG8 8HD
United Kingdom
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- GB 307932304
Company registration number:
- 10691061
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a***5 (37)- Feedback left by buyer.
Past 6 months
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Great item, exactly as described. The packaging was very poor but item arrived undamaged. Communications and dispatch time were also poor but overall a successful transaction.
r***c (1949)- Feedback left by buyer.
Past 6 months
Verified purchase
Pros - polite communication, low prices, generous discount offered for damaged book.
Cons - very slow communication which tends to be generic and promises much but delivers little, heavy book was sent in a jiffy bag and arrived damaged, had to get Ebay involved to action the promised partial refund.
Summary - 'pile it high and sell it cheap' organisation which is unable to provide efficient customer service and makes the mistake of not packaging books correctly. Will not buy from them again.
g***e (288)- Feedback left by buyer.
Past year
Verified purchase
Happy with item , communication with seller and price . some feedback for buyers and seller ,item came in a thin single layer bubble wrap envelope when it is a heavy ,easily damageable item , lucky it was intact and undamaged , and second item came faster than date once purchased but was listed at 3-5 days which wasn't exactly accurate
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