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@@ -605,12 +605,13 @@ there are things that you should keep in mind:
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 - This feature is only available if Apache is started by 'root'. This is the
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   case on most Apache installations.
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-TODO: document the config option to disable this.
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 [[reducing_memory_usage]]
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 === Reducing memory consumption of Ruby on Rails apps by 33% ===
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-TODO
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+Is it possible to reduce memory consumptioin of your Rails apps by 33% on average,
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+by using http://emm-ruby.phusion.nl/[Enhanced Memory Manager Ruby (EMM-Ruby)].
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+Please visit the website for details.
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 === Moving Passenger to a different directory ===
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