Add size back.

lib/sidekiq/stats.rb

@@ -23,4 +23,14 @@ module Sidekiq
                           inject(0) {|memo, val| memo + val }
     results
   end
+
+  def size(*queues)
+    return info[:backlog] if queues.empty?
+
+    Sidekiq.redis { |conn|
+      conn.multi {
+        queues.map { |q| conn.llen("queue:#{q}") }
+      }
+    }.inject(0) { |memo, count| memo += count }
+  end
 end

test/test_stats.rb

@@ -92,6 +92,15 @@ class TestStats < MiniTest::Unit::TestCase
         end
       end
 
+      describe "size" do
+        it "returns size of queues" do
+          assert_equal 0, Sidekiq.size("foox")
+          assert_equal 1, Sidekiq.size(:foo)
+          assert_equal 1, Sidekiq.size("foo")
+          assert_equal 4, Sidekiq.size("foo", "bar")
+          assert_equal 6, Sidekiq.size
+        end
+      end
     end
 
   end