Improve memory performance by reducing dirty pages after fork()
The nakayoshi_fork gem works around the lack of a Ruby compacting garbage collecting by calling GC.start a few times to "promote" the age of young objects to the maximum age 3. This reduces the number of dirty pages and consequently improves copy-on-write behavior with unicorn and other forking Web application servers.
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Gemfile
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@ -15,6 +15,9 @@ source 'https://rubygems.org'
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gem 'rails', gem_versions['rails']
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gem 'rails', gem_versions['rails']
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gem 'rails-deprecated_sanitizer', '~> 1.0.3'
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gem 'rails-deprecated_sanitizer', '~> 1.0.3'
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# Improves copy-on-write performance for MRI
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gem 'nakayoshi_fork', '~> 0.0.4'
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# Responders respond_to and respond_with
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# Responders respond_to and respond_with
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gem 'responders', '~> 2.0'
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gem 'responders', '~> 2.0'
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@ -470,6 +470,7 @@ GEM
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mustermann-grape (1.0.0)
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mustermann-grape (1.0.0)
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mustermann (~> 1.0.0)
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mustermann (~> 1.0.0)
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mysql2 (0.4.10)
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mysql2 (0.4.10)
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nakayoshi_fork (0.0.4)
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net-ldap (0.16.0)
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net-ldap (0.16.0)
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net-ssh (5.0.1)
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net-ssh (5.0.1)
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netrc (0.11.0)
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netrc (0.11.0)
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@ -1051,6 +1052,7 @@ DEPENDENCIES
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mini_magick
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mini_magick
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minitest (~> 5.7.0)
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minitest (~> 5.7.0)
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mysql2 (~> 0.4.10)
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mysql2 (~> 0.4.10)
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nakayoshi_fork (~> 0.0.4)
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net-ldap
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net-ldap
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net-ssh (~> 5.0)
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net-ssh (~> 5.0)
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nokogiri (~> 1.8.2)
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nokogiri (~> 1.8.2)
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@ -467,6 +467,7 @@ GEM
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mustermann-grape (1.0.0)
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mustermann-grape (1.0.0)
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mustermann (~> 1.0.0)
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mustermann (~> 1.0.0)
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mysql2 (0.4.10)
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mysql2 (0.4.10)
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nakayoshi_fork (0.0.4)
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net-ldap (0.16.0)
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net-ldap (0.16.0)
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net-ssh (5.0.1)
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net-ssh (5.0.1)
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netrc (0.11.0)
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netrc (0.11.0)
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@ -1042,6 +1043,7 @@ DEPENDENCIES
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mini_magick
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mini_magick
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minitest (~> 5.7.0)
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minitest (~> 5.7.0)
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mysql2 (~> 0.4.10)
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mysql2 (~> 0.4.10)
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nakayoshi_fork (~> 0.0.4)
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net-ldap
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net-ldap
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net-ssh (~> 5.0)
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net-ssh (~> 5.0)
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nokogiri (~> 1.8.2)
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nokogiri (~> 1.8.2)
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@ -0,0 +1,5 @@
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---
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title: Improve memory performance by reducing dirty pages after fork()
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merge_request: 23169
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author:
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type: performance
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