Ruby on Rails的方法基准性能 [英] Ruby on Rails' Method Benchmark Performance

问题描述

我想知道几种rails方法的基准会是什么样子.任何人都可以运行自定义方法的网站吗?:

I wonder what the benchmark for few rails methods would look like. Anyone got a website that can run custom methods?:

User.count
#=> 1000000 (Let's say about that)

u = User.where(account_id: 5)
u.count
#=> 100000

u.map |a| a.account_id = 6 end

有没有办法测试这种基准?该迭代有多慢或多快?

Is there a way to test this sort of benchmark? How slow or fast is that iteration?

推荐答案

您可以使用ruby

You can use ruby benchmark module for this kind of test

require 'benchmark'
Benchmark.bm do |x|
  x.report { User.count }
  x.report { u = User.where(account_id: 5); u.count }
  x.report { u = User.where(account_id: 5); u.map |a| a.account_id = 6 end }
end

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