duration is called multiple times in dev, so lets cache it

2013-08-18 16:52:15 -07:00 · 2013-08-18 16:52:15 -07:00 · 48c8135423
commit 48c8135423
parent d1b618b50a
1 changed files with 2 additions and 1 deletions
--- a/activesupport/lib/active_support/notifications/instrumenter.rb
+++ b/activesupport/lib/active_support/notifications/instrumenter.rb
@ -54,10 +54,11 @@ def initialize(name, start, ending, transaction_id, payload)
        @transaction_id = transaction_id
        @end            = ending
        @children       = []
+        @duration       = nil
      end

      def duration
-        1000.0 * (self.end - time)
+        @duration ||= 1000.0 * (self.end - time)
      end

      def <<(event)