08 Jul '13, 3am

Ruby/rails performance tools via @zite

Ruby/rails performance tools via @zite

You have a rails webapp, you’re doing TDD, you are always implementing the simplest thing that could possibly work. Well guess what, the simplest is not always the most performant. If you are always doing simplest thing you’ll not likely to face performance issues early in the product especially if it’s a new product and you won’t have lots of users nor data. But the time will come that your simplest thing will bite you, and that’s fine, if you know what to do. Finding some performance holes can be quite easy if you have the right tools, some problems are straightforward and often times solving the simple problems will be more than enough. The bullet gem is a great starting point to find N+1 queries, unecessary eager loading and opportunity to use counter cache. A classic example of the N+1 queries problem: you have a model with a relation, you’re listing all the records f...

Full article: http://pivotallabs.com/rubyrails-performance-tools/

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