“rake assets：precompile”的糟糕时间表现 [英] Poor time performance of 'rake assets:precompile'

问题描述

正在运行：

bundle exec rake assets:precompile RAILS_ENV=production

大约250kb的15个.js文件需要大约6分钟。它不应该花这么长时间吗？我看到Microsoft基于控制台的脚本主机在大部分时间内都处于平稳状态。

Takes about 6 minutes for 15 .js files of about 250kb total. It should not take this long surely? I see the 'Microsoft Console Based Script Host' working flat out for most of this time.

人们推荐/知道什么是可能的？
有没有办法用Ruby-Racer或其他javascript V8引擎实现替换它？或者找出我的代码中导致时间长的问题？
或其他什么？

What would people recommend / know is possible? Is there a way to replace this with Ruby-Racer or another javascript V8 engine implementation? OR to find out the problem in my code that's causing the long time? Or something else?

推荐答案

你在运行哪个服务器？是Ubuntu，Debian，Mac吗？
确保你的Gemfile中有这个：

Which server are you running? Is it Ubuntu, Debian, Mac? Make sure you have this in your Gemfile:

group :production do
  gem "libv8"
  gem "therubyracer", :require => 'v8'
end

有关详细信息，请参阅此页：
https://github.com/rails/rails/issues/2537

See this page for more info: https://github.com/rails/rails/issues/2537

您还可以尝试删除 app / assets / * 文件夹中未使用的文件。
花在JS编译上的时间最多。

You can also try to remove unused files in your app/assets/* folders. Time is most spent on JS compilation.

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