new relic example

gistfile1.txt

require 'newrelic_rpm'

# https://support.newrelic.com/help/discussions/support/7631-not-seeing-database-data
NewRelic::Agent.add_instrumentation(File.join(Gem.loaded_specs['newrelic_rpm'].full_gem_path, "lib/new_relic/agent/instrumentation/rails3/active_record_instrumentation.rb"))
# From lib/new_relic/agent/instrumentation/rails3/active_record_instrumentation.rb
require 'new_relic/agent/instrumentation/rails3/active_record_instrumentation'
ActiveRecord::ConnectionAdapters::AbstractAdapter.module_eval do
  include ::NewRelic::Agent::Instrumentation::ActiveRecordInstrumentation
end
ActiveRecord::Base.class_eval do
  class << self           
    add_method_tracer :find_by_sql, 'ActiveRecord/#{self.name}/find_by_sql', :metric => false
    add_method_tracer :transaction, 'ActiveRecord/#{self.name}/transaction', :metric => false
  end
end
NewRelic::Agent.manual_start

def moo(r)
  sleep rand(r)
end
add_transaction_tracer :moo, :class_name => 'moo', :name => 'sleep'


1.upto(5) do |i|
  moo i
end