-
-
Save lambda2/b9a4d292e004c52411c6 to your computer and use it in GitHub Desktop.
A Gem loading benchmark script
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #!/usr/bin/env ruby | |
| require 'bundler/setup' | |
| require 'benchmark' | |
| REGEXPS = [ | |
| /^no such file to load -- (.+)$/i, | |
| /^Missing \w+ (?:file\s*)?([^\s]+.rb)$/i, | |
| /^Missing API definition file in (.+)$/i, | |
| /^cannot load such file -- (.+)$/i, | |
| ] | |
| def pull(dep) | |
| required_file = nil | |
| begin | |
| # Loop through all the specified autorequires for the | |
| # dependency. If there are none, use the dependency's name | |
| # as the autorequire. | |
| Array(dep.autorequire || dep.name).each do |file| | |
| required_file = file | |
| Kernel.require file | |
| end | |
| rescue LoadError => e | |
| if dep.autorequire.nil? && dep.name.include?('-') | |
| begin | |
| namespaced_file = dep.name.gsub('-', '/') | |
| Kernel.require namespaced_file | |
| rescue LoadError | |
| REGEXPS.find { |r| r =~ e.message } | |
| raise if dep.autorequire || $1.gsub('-', '/') != namespaced_file | |
| end | |
| else | |
| REGEXPS.find { |r| r =~ e.message } | |
| raise if dep.autorequire || $1 != required_file | |
| end | |
| end | |
| end | |
| rails_time = | |
| Benchmark.realtime do | |
| require 'rails/all' | |
| # If you would prefer gems to incur the cost of autoloading | |
| # Rails frameworks, then comment out this next line. | |
| ActiveSupport::Autoload.eager_autoload! | |
| end | |
| $VERBOSE = nil | |
| gems = {} | |
| Bundler.load.setup(:default, :development, :assets).dependencies.each do |dependency| | |
| gems[dependency.name] = Benchmark.realtime{ pull(dependency) } | |
| putc "." | |
| end | |
| puts | |
| gems["rails"] = rails_time | |
| total = gems.map{|gem, time| time }.inject(0.0){|x, sum| sum + x } | |
| gems.sort_by{|gem, time| time }.reverse.each do |gem, time| | |
| puts "%-30s %8.4f %6.1f%%" % [gem[0...30], time, (time / total * 100)] | |
| end |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment