diff --git a/lib/wukong-load/syncers/ftp_syncer.rb b/lib/wukong-load/syncers/ftp_syncer.rb
index 65da87f..7d27230 100644
--- a/lib/wukong-load/syncers/ftp_syncer.rb
+++ b/lib/wukong-load/syncers/ftp_syncer.rb
@@ -10,9 +10,6 @@ class FTPSyncer < Syncer
 
       include Logging
 
-      # Time taken to complete sync.
-      attr_accessor :duration
-
       # A mapping between protocal names and the standard ports
       # those services run on.
       PROTOCOLS = {
diff --git a/lib/wukong-load/syncers/prepare_syncer.rb b/lib/wukong-load/syncers/prepare_syncer.rb
index e7de20c..943fb32 100644
--- a/lib/wukong-load/syncers/prepare_syncer.rb
+++ b/lib/wukong-load/syncers/prepare_syncer.rb
@@ -201,6 +201,7 @@ def after_sync
       # sizes in the `input` directory, but will log a message at the
       # `DEBUG` level for each file it would have processed.
       def sync
+        started_at = Time.now
         absolute_input_directory.find do |path|
           next if path.directory?
           self.files[:examined] += 1
@@ -210,6 +211,7 @@ def sync
           end
           same_size?(path) ? process!(path) : remember_size!(path)
         end
+        self.duration = (Time.now - started_at)
       ensure
         save_file_state!
       end
diff --git a/lib/wukong-load/syncers/s3_syncer.rb b/lib/wukong-load/syncers/s3_syncer.rb
index 1b5345f..337864b 100644
--- a/lib/wukong-load/syncers/s3_syncer.rb
+++ b/lib/wukong-load/syncers/s3_syncer.rb
@@ -15,9 +15,6 @@ class S3Syncer < Syncer
       # Number of bytes synced.
       attr_accessor :bytes
       
-      # Number of seconds taken to complete sync.
-      attr_accessor :duration
-
       # Construct a new S3Syncer from the given `settings` for the
       # given `source` with the given `name`.
       #
diff --git a/lib/wukong-load/syncers/syncer.rb b/lib/wukong-load/syncers/syncer.rb
index 9913b73..bdcc33d 100644
--- a/lib/wukong-load/syncers/syncer.rb
+++ b/lib/wukong-load/syncers/syncer.rb
@@ -12,6 +12,9 @@ class Syncer
       # Name of this syncer.
       attr_accessor :name
 
+      # Time taken to complete sync.
+      attr_accessor :duration
+      
       # Construct a new Syncer from the given `settings` for the given
       # `source` with the given `name`.
       #