Digging Deep in Rails 3 with ActiveSupport::Notifications(blog.librato.com)
blog.librato.com
Digging Deep in Rails 3 with ActiveSupport::Notifications
http://blog.librato.com/2012/05/digging-deep-with-activesupportnotifica.html
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http://blog.librato.com/2012/05/digging-deep-with-activesupportnotifica.html
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