discourse/config/initializers/300-perf.rb

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# frozen_string_literal: true
if Rails.env == "production"
# This event happens quite a lot and fans out to ExplainSubscriber
# and Logger, this cuts out 2 method calls that every time we run SQL
#
# In production we do not care about Explain or Logging SQL statements
# at this level
#
# Micro bench shows for `User.first` this takes us from 3.3k/s to 3.5k/s
ActiveSupport::Notifications.notifier.unsubscribe("sql.active_record")
end