diff --git a/bin/standard_benchmark b/bin/standard_benchmark
index b63a1cd..9460c4e 100755
--- a/bin/standard_benchmark
+++ b/bin/standard_benchmark
@@ -40,8 +40,6 @@ LARGE = {
                         'developers','focus','building','mongodb','mongo'] * 20
 }
 
-require 'benchmark'
-
 def report(str, t)
   printf("%s%d\n", str.ljust(60, '.'), PER_TRIAL / t)
 end
@@ -61,14 +59,19 @@ def profile(str)
   end
 end
 
-def benchmark(str, n, db, coll_name, object)
-  coll = db.collection(coll_name)
+def benchmark(str, n, coll_name, data, create_index=false)
+  coll = @db.collection(coll_name)
+  coll.create_index('x') if create_index
   profile(str) do
-    GC.start
-    tms = Benchmark.measure do
-      n.times { |i| yield(coll, object.is_a?(Hash) ? object.dup : object, i) }
+    times = []
+    TRIALS.times do 
+      GC.start
+      t1 = Time.now
+        n.times { |i| yield(coll, i) }
+      t2 = Time.now
+      times << t2 - t1
     end
-    report(str, tms.real)
+    report(str, times.min)
   end
 end
 
@@ -79,18 +82,17 @@ connection = Connection.new(host, port)
 connection.drop_database("benchmark")
 @db = connection.db('benchmark')
 
-def benchmark_insert(desc, data_desc, data)
-  benchmark(desc, PER_TRIAL, @db, data_desc, data) do |coll, object, i| 
-    object['x'] = i
-    coll.insert(object)
+def benchmark_insert(desc, coll_name, data)
+  benchmark(desc, PER_TRIAL, coll_name, data) do |coll, i|
+    data['x'] = i
+    coll.insert(data)
   end
 end
 
-def benchmark_insert_index(desc, data_desc, data)
-  benchmark(desc, PER_TRIAL, @db, data_desc, data) do |coll, object, i| 
-    coll.create_index('x')
-    object['x'] = i
-    coll.insert(object)
+def benchmark_insert_index(desc, coll_name, data)
+  benchmark(desc, PER_TRIAL, coll_name, data, true) do |coll, i|
+    data['x'] = i
+    coll.insert(data)
   end
 end
 
@@ -102,10 +104,10 @@ benchmark_insert_index('insert (small, index)', 'small_indexed', SMALL)
 benchmark_insert_index('insert (medium, index)', 'medium_indexed', MEDIUM)
 benchmark_insert_index('insert (large, index)', 'large_indexed', LARGE)
  
-def benchmark_insert_batch(desc, data_desc, data)
-  benchmark(desc, PER_TRIAL / BATCH_SIZE, @db, data_desc, data) do |coll, object, i| 
-    object['x'] = i
-    coll.insert([object] * BATCH_SIZE)
+def benchmark_insert_batch(desc, coll_name, data)
+  benchmark(desc, PER_TRIAL / BATCH_SIZE, coll_name, data) do |coll, i| 
+    data['x'] = i
+    coll.insert([data] * BATCH_SIZE)
   end
 end
 
@@ -113,41 +115,37 @@ benchmark_insert_batch('insert batch (small, index)', 'small_bulk', SMALL)
 benchmark_insert_batch('insert batch (medium, index)', 'medium_bulk', MEDIUM)
 benchmark_insert_batch('insert batch (large, index)', 'large_bulk', LARGE)
 
-def benchmark_find_one(desc, data_desc, data)
-  benchmark(desc, PER_TRIAL, @db, data_desc, data) do |coll, object, i| 
-    coll.find_one('x' => data_desc)
+def benchmark_find_one(desc, coll_name, data)
+  benchmark(desc, PER_TRIAL, coll_name, data) do |coll, i| 
+    coll.find_one({'x' => data})
   end
 end
 
 benchmark_find_one('find_one (small, no index)', 'small_none', PER_TRIAL / 2)
 benchmark_find_one('find_one (medium, no index)', 'medium_none', PER_TRIAL / 2)
 benchmark_find_one('find_one (large, no index)', 'large_none', PER_TRIAL / 2)
+
 benchmark_find_one('find_one (small, indexed)', 'small_indexed', PER_TRIAL / 2)
 benchmark_find_one('find_one (medium, indexed)', 'medium_indexed', PER_TRIAL / 2)
 benchmark_find_one('find_one (large, indexed)', 'large_indexed', PER_TRIAL / 2)
 
-def benchmark_find_all(desc, data_desc, data)
-  benchmark(desc, PER_TRIAL, @db, data_desc, data) do |coll, object, i| 
-    coll.find('x' => data_desc).each {}
+def benchmark_find_all(desc, coll_name, data)
+  benchmark(desc, PER_TRIAL, coll_name, data) do |coll, i| 
+    coll.find({'x' => data}).each {|o| o}
   end
 end
 
 benchmark_find_all('find_all (small, no index)', 'small_none', PER_TRIAL / 2)
 benchmark_find_all('find_all (medium, no index)', 'medium_none', PER_TRIAL / 2)
 benchmark_find_all('find_all (large, no index)', 'large_none', PER_TRIAL / 2)
+
 benchmark_find_all('find_all (small, indexed)', 'small_indexed', PER_TRIAL / 2)
 benchmark_find_all('find_all (medium, indexed)', 'medium_indexed', PER_TRIAL / 2)
 benchmark_find_all('find_all (large, indexed)', 'large_indexed', PER_TRIAL / 2)
 
-def benchmark_find_range(desc, data_desc, data)
-  benchmark(desc, PER_TRIAL, @db, data_desc, data) do |coll, object, i| 
-    coll.find('x' => data_desc).each {}
-  end
-end
-
-benchmark_find_range('find_range (small, indexed)', 'small_indexed', 
+benchmark_find_all('find_range (small, indexed)', 'small_indexed', 
                      {"$gt" => PER_TRIAL / 2, "$lt" => PER_TRIAL / 2 + BATCH_SIZE})
-benchmark_find_range('find_range (medium, indexed)', 'medium_indexed', 
+benchmark_find_all('find_range (medium, indexed)', 'medium_indexed', 
                      {"$gt" => PER_TRIAL / 2, "$lt" => PER_TRIAL / 2 + BATCH_SIZE})
-benchmark_find_range('find_range (large, indexed)', 'large_indexed', 
+benchmark_find_all('find_range (large, indexed)', 'large_indexed', 
                      {"$gt" => PER_TRIAL / 2, "$lt" => PER_TRIAL / 2 + BATCH_SIZE})