diff --git a/benchs/parse_vs_push.rb b/benchs/parse_vs_push.rb
new file mode 100644
index 000000000..eebfbd33f
--- /dev/null
+++ b/benchs/parse_vs_push.rb
@@ -0,0 +1,60 @@
+require 'benchmark'
+require 'rubygems'
+require 'nokogiri'
+
+class Parser < Nokogiri::XML::SAX::Document
+
+  attr_reader :response
+
+  def initialize
+    reset
+  end
+
+  def reset
+    @item = {}
+    @response = { :items => [] }
+  end
+
+  def characters(string)
+    @value << string.strip
+  end
+
+  def start_element(name, attrs = [])
+    @value = ''
+  end
+
+  def end_element(name)
+    case name
+    when 'item'
+      @response[:items] << @item
+      @item = {}
+    when 'key'
+      @item[:key] = @value
+    end
+  end
+
+end
+
+data = <<-DATA
+<items>
+  <item>
+    <key>value</key>
+  </item>
+</items>
+DATA
+
+COUNT = 100
+
+Benchmark.bmbm(25) do |bench|
+  bench.report('parse') do
+    parser = Parser.new
+    Nokogiri::XML::SAX::Parser.new(parser).parse(data)
+    parser.response
+  end
+
+  bench.report('push') do
+    parser = Parser.new
+    Nokogiri::XML::SAX::PushParser.new(parser).write(data, true)
+    parser.response
+  end
+end
diff --git a/lib/fog/aws/ec2.rb b/lib/fog/aws/ec2.rb
index c8d30328c..bde5db8d6 100644
--- a/lib/fog/aws/ec2.rb
+++ b/lib/fog/aws/ec2.rb
@@ -391,7 +391,7 @@ module Fog
         })
 
         if parser && !response.body.empty?
-          Nokogiri::XML::SAX::Parser.new(parser).parse(response.body)
+          Nokogiri::XML::SAX::PushParser.new(parser).write(response.body, true)
           response.body = parser.response
         end
 
diff --git a/lib/fog/aws/s3.rb b/lib/fog/aws/s3.rb
index a6008f59f..6ce3f0465 100644
--- a/lib/fog/aws/s3.rb
+++ b/lib/fog/aws/s3.rb
@@ -300,7 +300,7 @@ DATA
         })
 
         if params[:parser] && !response.body.empty?
-          Nokogiri::XML::SAX::Parser.new(params[:parser]).parse(response.body)
+          Nokogiri::XML::SAX::PushParser.new(params[:parser]).write(response.body, true)
           response.body = params[:parser].response
         end
 
diff --git a/lib/fog/aws/simpledb.rb b/lib/fog/aws/simpledb.rb
index 981f8a58c..79004f46f 100644
--- a/lib/fog/aws/simpledb.rb
+++ b/lib/fog/aws/simpledb.rb
@@ -333,7 +333,7 @@ module Fog
         })
 
         if parser && !response.body.empty?
-          Nokogiri::XML::SAX::Parser.new(parser).parse(response.body)
+          Nokogiri::XML::SAX::PushParser.new(parser).write(response.body, true)
           response.body = parser.response
         end