diff --git a/bench/Rakefile b/bench/Rakefile
new file mode 100644
index 0000000..4fb7244
--- /dev/null
+++ b/bench/Rakefile
@@ -0,0 +1,62 @@
+require 'benchmark'
+
+ENV['MODE'] = 'c'
+$suite = {
+    :suite_insert_one =>  [ :test_insert_one, :test_insert_one_safe ],
+    :suite_insert_many => [ :test_insert_many, :test_insert_many_safe ],
+    :suite_find =>        [ :test_find_one, :test_find_many ],
+    :suite_nest =>        [ :test_insert_one_nest_full, :test_find_one_nest_full ],
+}
+$date = Time.now.strftime('%Y%m%d-%H%M')
+
+def suite_series_name(suite)
+  "exp_series_#{suite}_#{ENV['MODE']}"
+end
+
+def suite_file_name(suite)
+  suite_series_name(suite) + '.js'
+end
+
+def suite_file_name_temp(suite)
+  suite_file_name(suite) + '.tmp'
+end
+
+task :default => [:c, :ruby]
+
+task :c do
+  ENV['MODE'] = 'c'
+  $suite.each_key do |key|
+    Rake::Task[key].invoke
+  end
+end
+
+task :ruby do
+  ENV['MODE'] = 'ruby'
+  $suite.each_key do |suite|
+    Rake::Task[suite].execute
+  end
+end
+
+$suite.each do |suite, tests|
+  tests.each do |t|
+    task t do
+      sh "ruby exp_series.rb --file #{suite_file_name_temp(suite)} --mode #{ENV['MODE']} --tag #{suite} -- --name #{t}"
+    end
+  end
+
+  desc "#{suite} - #{$suite[suite].join(', ')}"
+  task suite do |t|
+    File.open(suite_file_name_temp(suite), 'w'){|f| f.puts("#{suite_series_name(suite)} = [")}
+    btms = Benchmark.measure do
+      $suite[suite].each do |pre|
+        Rake::Task[pre].execute
+      end
+    end
+    File.open(suite_file_name_temp(suite), 'a'){|f| f.puts("]; // #{(btms.real/60.0).round} minutes")}
+    sh "mv #{suite_file_name_temp(suite)} #{suite_file_name(suite)}"
+  end
+end
+
+task :clobber do
+  sh "rm -f exp_series_suite_*.js"
+end
\ No newline at end of file
diff --git a/bench/exp_series.html b/bench/exp_series.html
index a780003..f50a2e7 100644
--- a/bench/exp_series.html
+++ b/bench/exp_series.html
@@ -7,26 +7,40 @@
     <!--[if lte IE 8]><script language="javascript" type="text/javascript" src="excanvas.min.js"></script><![endif]-->
     <script language="javascript" type="text/javascript" src="jquery.js"></script>
     <script language="javascript" type="text/javascript" src="jquery.flot.js"></script>
-    <script language="javascript" type="text/javascript" src="exp_series.js"></script>
+    <script language="javascript" type="text/javascript" src="exp_series_suite_insert_one_c.js"></script>
+    <script language="javascript" type="text/javascript" src="exp_series_suite_insert_one_ruby.js"></script>
+    <script language="javascript" type="text/javascript" src="exp_series_suite_insert_many_c.js"></script>
+    <script language="javascript" type="text/javascript" src="exp_series_suite_insert_many_ruby.js"></script>
+    <script language="javascript" type="text/javascript" src="exp_series_suite_find_c.js"></script>
+    <script language="javascript" type="text/javascript" src="exp_series_suite_find_ruby.js"></script>
+    <script language="javascript" type="text/javascript" src="exp_series_suite_nest_c.js"></script>
+    <script language="javascript" type="text/javascript" src="exp_series_suite_nest_ruby.js"></script>
     <style type="text/css">
     body {
         font-family: sans-serif;
         font-size: 16px;
         margin: 50px;
     }
+    h2 {
+        padding: 20px;
+        background-color: lightblue;
+    }
+    .title {
+        font-weight: bold;
+        margin: 20px;
+    }
+    .show_hide, #show_all, #show_default {
+        padding: 1px;
+        line-height: 200%;
+        cursor: pointer;
+        background-color: LightGray;
+    }
     .graph {
         width:800px;
         height:400px;
     }
     .note {
-
-    }
-    .show_hide {
-        padding: 1px;
-        line-height: 200%;
         margin: 20px;
-        cursor: pointer;
-        background-color: LightGray;
     }
     .hidden {
         display: none; //visibility: hidden; // to collapse, use display: none
@@ -38,33 +52,61 @@
     x-axis is power of 2, log base 2 of size<br/>
     y-axis is "document" operations per second, ex., total document insertions per second<br/>
     <br/>
-    For measuring Ruby driver performance, we are interested primarily in the "user" CPU time.<br/>
-    The "user" time is the time used by the Ruby driver, typically much less than real time.<br/>
+    user_ops are operations per user-CPU-time second<br/>
+    real_ops are operations per real-time second<br/>
     <br/>
+    For measuring Ruby driver performance, we are interested primarily in the "user" CPU time.<br/>
+    The "user" time is the time used by the Ruby driver, typically less than real time.<br/>
+    <br/>
+    <span id="show_all">Show All</span> <span id="show_default">Show Default</span>
     <hr/>
     <h2>Issues</h2><div id="array_slow"></div>
     <hr/>
-    <h2>Nested Structures</h2><div id="nested"></div>
+    <h2>Best Practices</h2><div id="best_practices"></div>
     <hr/>
-    <h2>C versus Ruby</h2><div id="c_vs_ruby"></div>
+    <h2>Insert Many Safe - with Data Sizes</h2><p>Insert many safe is faster than insert one safe especially for increasing multiples and for smaller data, as expected.</p><div id="insert_many_safe"></div>
+    <hr/>
+    <h2>Insert Many - with Data Sizes</h2><p>Insert many is faster than insert one especially for increasing multiples and for smaller data, as expected.</p><div id="insert_many"></div>
+    <hr/>
+    <h2>Insert One Fast versus Safe - with Real Time</h2><p>Fast mode is significantly faster than safe mode especially for smaller data, as expected.</p><div id="insert_one_safe"></div>
+    <hr/>
+    <h2>Find Many versus Find One - with Real Time</h2><p>Find many with cursor is significantly faster than find one, as expected.</p><div id="find"></div>
+    <hr/>
+    <h2>C versus Ruby - with Real Time</h2><p>The C extension is significantly faster than Ruby, as expected.</p><div id="c_vs_ruby"></div>
+    <hr/>
+    <h2>Nested Structures</h2><p>The deeper binary nested array is slower than broader structures with the same number of leaves, so we omit broader structures in other tests.</p><div id="nested"></div>
     <hr/>
 
-<script type="text/javascript">
-    function genOpXY(a, xMax, plotSpec, xKey, yKey) {
+    <script type="text/javascript">
+
+    suite = [
+        exp_series_suite_insert_one_c,
+        exp_series_suite_insert_one_ruby,
+        exp_series_suite_insert_many_c,
+        exp_series_suite_insert_many_ruby,
+        exp_series_suite_find_c,
+        exp_series_suite_find_ruby,
+        exp_series_suite_nest_c,
+        exp_series_suite_nest_ruby
+    ];
+    expSeries = [];
+    for (i in suite) { expSeries = expSeries.concat(suite[i]); }
+
+    function genOpXY(a, xMax, plotSpec) {
         var genOpA = $.grep(a, function(e, i){
             if (e.exp2 > xMax) return false;
             for (var key in plotSpec) {
-                if (e[key] != plotSpec[key]) return false;
+                if (key != 'x' && key != 'y' && e[key] != plotSpec[key]) return false;
             }
             return true;
         });
-        return $.map(genOpA, function(e, i){return [[e[xKey], e[yKey]]];});
+        return $.map(genOpA, function(e, i){return [[e[plotSpec.x], e[plotSpec.y]]];});
     }
-    function flotSeries(expSeries, xMax, labelSpec, plotSpecs) {
-        return $.map(plotSpecs, function(plotSpec, i){
+    function flotSeries(expSeries, xMax, labelSpec, plotLines) {
+        return $.map(plotLines, function(plotSpec, i){
             return {
-                label: labelSpec + ': ' + plotSpec[labelSpec],
-                data: genOpXY(expSeries, xMax, plotSpec, 'exp2', 'ut_ops'),
+                label: plotSpec.y + ', ' + labelSpec + ': ' + plotSpec[labelSpec],
+                data: genOpXY(expSeries, xMax, plotSpec),
                 lines: { show: true },
                 points: { show: true }
             };
@@ -82,9 +124,10 @@ $(function () {
     }
     function doPlot(section, title, series, classes, notes) {
         var id = title.replace(/\W/g,'_');
-        $(section).append('<hr/><h3>' + title + '</h3>' +
-                '<div id="note_' + id + '" class="note"></div>' +
+        $(section).append('<hr/>' +
                 '<span id="show_hide_' + id + '" class="show_hide">Show/Hide</span>' +
+                '<span class="title">' + title + '</span>' +
+                '<span id="note_' + id + '" class="note"></span>' +
                 '<div id="' + id + '" class="graph"></div>');
         $('#note_' + id).text(notes);
         var e = $('#' + id);
@@ -101,117 +144,473 @@ $(function () {
 
     // comment pending
     var graph = [
-        [ '#array_slow', 'array_size_fixnum slow versus hash_size_fixnum insert C', '', 12, 'generator',
+        [ '#array_slow', 'array_size_fixnum slow versus hash_size_fixnum insert one C', '', 12, 'generator',
             [
-                { base:2, generator:'array_size_fixnum', operation:'insert', mode: 'c', tag: 'base_c' },
-                { base:2, generator:'hash_size_fixnum', operation:'insert', mode: 'c', tag: 'base_c' }
+                { x:'exp2', y:'user_ops', generator:'array_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_one', status:'OK' },
+                { x:'exp2', y:'user_ops', generator:'hash_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_one', status:'OK' }
             ],
             'Array insertion is significantly slower than hash insertion.  ' +
             'Investigation shows that there is an extra malloc/free for each array index key.  '
         ],
-        [ '#array_slow', 'array_size_fixnum slow versus fast insert C', '', 12, 'tag',
+        [ '#array_slow', 'array_size_fixnum fast versus slow insert one C', '', 12, 'tag',
             [
-                { base:2, generator:'array_size_fixnum', operation:'insert', mode: 'c', tag: 'base_c' },
-                { base:2, generator:'array_size_fixnum', operation:'insert', mode: 'c', tag: 'array_fast' }
+                { x:'exp2', y:'user_ops', generator:'array_size_fixnum', operation:'insert', mode:'c', tag:'array_fast', status:'OK' },
+                { x:'exp2', y:'user_ops', generator:'array_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_one', status:'OK' }
             ],
             'Pending: Array insertion is now faster.'
         ],
-        [ '#array_slow', 'array_size_fixnum fast versus hash_size_fixnum insert C', '', 12, 'generator',
+        [ '#array_slow', 'array_size_fixnum fast versus hash_size_fixnum insert one C', '', 12, 'generator',
             [
-                { base:2, generator:'array_size_fixnum', operation:'insert', mode: 'c', tag: 'array_fast' },
-                { base:2, generator:'hash_size_fixnum', operation:'insert', mode: 'c', tag: 'base_c' }
+                { x:'exp2', y:'user_ops', generator:'array_size_fixnum', operation:'insert', mode:'c', tag:'array_fast', status:'OK' },
+                { x:'exp2', y:'user_ops', generator:'hash_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_one', status:'OK' }
             ],
             'Pending: Array insertion is now as fast as hash insertion.'
         ],
-        [ '#array_slow', 'array_nest_fixnum slow versus hash_nest_fixnum insert C base 2', '', 12, 'generator',
+        [ '#array_slow', 'array_nest_fixnum slow versus hash_nest_fixnum insert one C base 2', '', 12, 'generator',
             [
-                { base:2, generator:'array_nest_fixnum', operation:'insert', mode: 'c', tag: 'base_c' },
-                { base:2, generator:'hash_nest_fixnum', operation:'insert', mode: 'c', tag: 'base_c' }
+                { x:'exp2', y:'user_ops', generator:'array_nest_fixnum', operation:'insert', mode:'c', tag:'suite_insert_one', base:2, status:'OK' },
+                { x:'exp2', y:'user_ops', generator:'hash_nest_fixnum', operation:'insert', mode:'c', tag:'suite_insert_one', base:2, status:'OK' }
             ],
             'Nested array insertion is significantly slower than nested hash insertion.'
         ],
-        [ '#array_slow', 'array_nest_fixnum slow versus fast insert C base 2', 'hidden', 12, 'tag',
+        [ '#array_slow', 'array_nest_fixnum fast versus slow insert one C base 2', 'hidden', 12, 'tag',
             [
-                { base:2, generator:'array_nest_fixnum', operation:'insert', mode: 'c', tag: 'base_c' },
-                { base:2, generator:'array_nest_fixnum', operation:'insert', mode: 'c', tag: 'array_fast' }
+                { x:'exp2', y:'user_ops', generator:'array_nest_fixnum', operation:'insert', mode:'c', tag:'array_fast', base:2 , status:'OK' },
+                { x:'exp2', y:'user_ops', generator:'array_nest_fixnum', operation:'insert', mode:'c', tag:'suite_insert_one', base:2, status:'OK' }
             ],
             'Pending: Nested array insertion is now faster.'
         ],
-        [ '#array_slow', 'array_nest_fixnum fast versus hash_nest_fixnum insert C base 2', 'hidden', 12, 'generator',
+        [ '#array_slow', 'array_nest_fixnum fast versus hash_nest_fixnum insert one C base 2', 'hidden', 12, 'generator',
             [
-                { base:2, generator:'array_nest_fixnum', operation:'insert', mode: 'c', tag: 'array_fast' },
-                { base:2, generator:'hash_nest_fixnum', operation:'insert', mode: 'c', tag: 'base_c' }
+                { x:'exp2', y:'user_ops', generator:'array_nest_fixnum', operation:'insert', mode:'c', tag:'array_fast', base:2 , status:'OK' },
+                { x:'exp2', y:'user_ops', generator:'hash_nest_fixnum', operation:'insert', mode:'c', tag:'suite_insert_one', base:2, status:'OK' }
             ],
             'Pending: Nested array insertion is now as fast as nested hash insertion.'
         ],
-        [ '#nested', 'array_nest_fixnum insert C by base', 'hidden', 12, 'base',
+        [ '#best_practices', 'best practice - hash_size_fixnum insert many fast versus safe for hash size 16', '', 14, 'operation',
             [
-                { base:2, generator:'array_nest_fixnum', operation:'insert', mode: 'c', tag: 'base_c_nest_full' },
-                { base:4, generator:'array_nest_fixnum', operation:'insert', mode: 'c', tag: 'base_c_nest_full' },
-                { base:8, generator:'array_nest_fixnum', operation:'insert', mode: 'c', tag: 'base_c_nest_full' },
-                { base:16, generator:'array_nest_fixnum', operation:'insert', mode: 'c', tag: 'base_c_nest_full' },
-                { base:32, generator:'array_nest_fixnum', operation:'insert', mode: 'c', tag: 'base_c_nest_full' }
+                { x:'multi_power', y:'user_ops', size:16, generator:'hash_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:16, generator:'hash_size_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'real_ops', size:16, generator:'hash_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'real_ops', size:16, generator:'hash_size_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' }
             ],
-            'The deeper binary nested array is slower than broader structures with the same number of leaves.'
+            'Insert many to ammortize the extra cost of safe mode significantly.'
         ],
-        [ '#nested', 'hash_nest_fixnum insert C by base', 'hidden', 12, 'base',
+        [ '#best_practices', 'best practice - hash_size_fixnum find many with cursor versus find one', '', 12, 'operation',
             [
-                { base:2, generator:'hash_nest_fixnum', operation:'insert', mode: 'c', tag: 'base_c_nest_full' },
-                { base:4, generator:'hash_nest_fixnum', operation:'insert', mode: 'c', tag: 'base_c_nest_full' },
-                { base:8, generator:'hash_nest_fixnum', operation:'insert', mode: 'c', tag: 'base_c_nest_full' },
-                { base:16, generator:'hash_nest_fixnum', operation:'insert', mode: 'c', tag: 'base_c_nest_full' },
-                { base:32, generator:'hash_nest_fixnum', operation:'insert', mode: 'c', tag: 'base_c_nest_full' }
+                { x:'exp2', y:'user_ops', generator:'hash_size_fixnum', operation:'find_many', mode:'c', tag:'suite_find', status:'OK' },
+                { x:'exp2', y:'user_ops', generator:'hash_size_fixnum', operation:'find_one', mode:'c', tag:'suite_find', status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'hash_size_fixnum', operation:'find_many', mode:'c', tag:'suite_find', status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'hash_size_fixnum', operation:'find_one', mode:'c', tag:'suite_find', status:'OK' }
             ],
-            'The deeper binary nested hash is slower than broader structures with the same number of leaves.'
+            'Find many with a cursor to out-perform find one significantly.'
         ],
-        [ '#c_vs_ruby', 'value_string_size insert C versus Ruby', 'hidden', 14, 'mode',
+        [ '#insert_many_safe', 'value_string_size insert many safe by multiples (x axis) over a range of data sizes', 'hidden', 14, 'size',
             [
-                { base:2, generator:'value_string_size', operation:'insert', mode: 'c', tag: 'base_c' },
-                { base:2, generator:'value_string_size', operation:'insert', mode: 'ruby', tag: 'base_ruby' }
+                { x:'multi_power', y:'user_ops', size:1, generator:'value_string_size', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:4, generator:'value_string_size', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:16, generator:'value_string_size', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:64, generator:'value_string_size', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:256, generator:'value_string_size', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:1024, generator:'value_string_size', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:4096, generator:'value_string_size', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' }
             ],
-            'The C extension is significantly faster than Ruby, as expected.'
+            ''
         ],
-        [ '#c_vs_ruby', 'key_string_size insert C versus Ruby', 'hidden', 14, 'mode',
+        [ '#insert_many_safe', 'key_string_size insert many safe by multiples (x axis) over a range of data sizes', 'hidden', 14, 'size',
             [
-                { base:2, generator:'key_string_size', operation:'insert', mode: 'c', tag: 'base_c' },
-                { base:2, generator:'key_string_size', operation:'insert', mode: 'ruby', tag: 'base_ruby' }
+                { x:'multi_power', y:'user_ops', size:1, generator:'key_string_size', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:4, generator:'key_string_size', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:16, generator:'key_string_size', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:64, generator:'key_string_size', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:256, generator:'key_string_size', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:1024, generator:'key_string_size', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:4096, generator:'key_string_size', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' }
             ],
-            'The C extension is significantly faster than Ruby, as expected.'
+            ''
         ],
-        [ '#c_vs_ruby', 'array_size_fixnum insert C versus Ruby', 'hidden', 12, 'mode',
+        [ '#insert_many_safe', 'hash_size_fixnum insert many safe by multiples (x axis) over a range of data sizes', '', 14, 'size',
             [
-                { base:2, generator:'array_size_fixnum', operation:'insert', mode: 'c', tag: 'base_c' },
-                { base:2, generator:'array_size_fixnum', operation:'insert', mode: 'ruby', tag: 'base_ruby' }
+                { x:'multi_power', y:'user_ops', size:1, generator:'hash_size_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:4, generator:'hash_size_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:16, generator:'hash_size_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:64, generator:'hash_size_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:256, generator:'hash_size_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:1024, generator:'hash_size_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:4096, generator:'hash_size_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' }
             ],
-            'The C extension is significantly faster than Ruby, as expected.'
+            ''
         ],
-        [ '#c_vs_ruby', 'hash_size_fixnum insert C versus Ruby', 'hidden', 12, 'mode',
+        [ '#insert_many_safe', 'array_size_fixnum insert many safe by multiples (x axis) over a range of data sizes', 'hidden', 14, 'size',
             [
-                { base:2, generator:'hash_size_fixnum', operation:'insert', mode: 'c', tag: 'base_c' },
-                { base:2, generator:'hash_size_fixnum', operation:'insert', mode: 'ruby', tag: 'base_ruby' }
+                { x:'multi_power', y:'user_ops', size:1, generator:'array_size_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:4, generator:'array_size_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:16, generator:'array_size_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:64, generator:'array_size_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:256, generator:'array_size_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:1024, generator:'array_size_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:4096, generator:'array_size_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' }
             ],
-            'The C extension is significantly faster than Ruby, as expected.'
+            ''
         ],
-        [ '#c_vs_ruby', 'array_nest_fixnum base 2 insert C versus Ruby', 'hidden', 12, 'mode',
+        [ '#insert_many_safe', 'array_nest_fixnum insert many safe by multiples (x axis) over a range of data sizes', 'hidden', 14, 'size',
             [
-                { base:2, generator:'array_nest_fixnum', operation:'insert', mode:'c', tag: 'base_c' },
-                { base:2, generator:'array_nest_fixnum', operation:'insert', mode:'ruby', tag: 'base_ruby' }
+                { x:'multi_power', y:'user_ops', size:1, generator:'array_nest_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:4, generator:'array_nest_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:16, generator:'array_nest_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:64, generator:'array_nest_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:256, generator:'array_nest_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:1024, generator:'array_nest_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:4096, generator:'array_nest_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' }
             ],
-            'The C extension is significantly faster than Ruby, as expected.'
+            ''
         ],
-        [ '#c_vs_ruby', 'hash_nest_fixnum base 2 insert C versus Ruby', 'hidden', 12, 'mode',
+        [ '#insert_many_safe', 'hash_nest_fixnum insert many safe by multiples (x axis) over a range of data sizes', 'hidden', 14, 'size',
             [
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-                { base:2, generator:'hash_nest_fixnum', operation:'insert', mode: 'ruby', tag: 'base_ruby' }
+                { x:'multi_power', y:'user_ops', size:1, generator:'hash_nest_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:4, generator:'hash_nest_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:16, generator:'hash_nest_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:64, generator:'hash_nest_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:256, generator:'hash_nest_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:1024, generator:'hash_nest_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:4096, generator:'hash_nest_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_many', status:'OK' }
             ],
-            'The C extension is significantly faster than Ruby, as expected.'
+            ''
         ],
+        [ '#insert_many', 'value_string_size insert many by multiples (x axis) over a range of data sizes', 'hidden', 14, 'size',
+            [
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+                { x:'multi_power', y:'user_ops', size:4, generator:'value_string_size', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:16, generator:'value_string_size', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:64, generator:'value_string_size', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:256, generator:'value_string_size', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:1024, generator:'value_string_size', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:4096, generator:'value_string_size', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' }
+            ],
+            ''
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+                { x:'multi_power', y:'user_ops', size:16, generator:'key_string_size', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:64, generator:'key_string_size', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:256, generator:'key_string_size', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:1024, generator:'key_string_size', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:4096, generator:'key_string_size', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' }
+            ],
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+                { x:'multi_power', y:'user_ops', size:4, generator:'hash_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:16, generator:'hash_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:64, generator:'hash_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:256, generator:'hash_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:1024, generator:'hash_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:4096, generator:'hash_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' }
+            ],
+            ''
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+                { x:'multi_power', y:'user_ops', size:16, generator:'array_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:64, generator:'array_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:256, generator:'array_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:1024, generator:'array_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:4096, generator:'array_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' }
+            ],
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+                { x:'multi_power', y:'user_ops', size:16, generator:'array_nest_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:64, generator:'array_nest_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:256, generator:'array_nest_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:1024, generator:'array_nest_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:4096, generator:'array_nest_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' }
+            ],
+            ''
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+                { x:'multi_power', y:'user_ops', size:4, generator:'hash_nest_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:16, generator:'hash_nest_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:64, generator:'hash_nest_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:256, generator:'hash_nest_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:1024, generator:'hash_nest_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' },
+                { x:'multi_power', y:'user_ops', size:4096, generator:'hash_nest_fixnum', operation:'insert', mode:'c', tag:'suite_insert_many', status:'OK' }
+            ],
+            ''
+        ],
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+            [
+                { x:'exp2', y:'user_ops', generator:'value_string_size', operation:'insert', mode:'c', tag:'suite_insert_one', status:'OK' },
+                { x:'exp2', y:'user_ops', generator:'value_string_size', operation:'insert_safe', mode:'c', tag:'suite_insert_one', status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'value_string_size', operation:'insert', mode:'c', tag:'suite_insert_one', status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'value_string_size', operation:'insert_safe', mode:'c', tag:'suite_insert_one', status:'OK' }
+            ],
+            ''
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+            [
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+                { x:'exp2', y:'real_ops', generator:'key_string_size', operation:'insert_safe', mode:'c', tag:'suite_insert_one', status:'OK' }
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+            ''
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+            [
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+                { x:'exp2', y:'real_ops', generator:'array_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_one', status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'array_size_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_one', status:'OK' }
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+                { x:'exp2', y:'real_ops', generator:'hash_size_fixnum', operation:'insert', mode:'c', tag:'suite_insert_one', status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'hash_size_fixnum', operation:'insert_safe', mode:'c', tag:'suite_insert_one', status:'OK' }
+            ],
+            ''
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+                { x:'exp2', y:'real_ops', generator:'array_nest_fixnum', operation:'insert', mode:'c', tag:'suite_insert_one', base:2, status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'array_nest_fixnum', operation:'insert_safe', mode:'ruby', tag:'suite_insert_one', base:2, status:'OK' }
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+            ],
+            ''
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+                { x:'exp2', y:'real_ops', generator:'value_string_size', operation:'find_many', mode:'c', tag:'suite_find', status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'value_string_size', operation:'find_one', mode:'c', tag:'suite_find', status:'OK' }
+            ],
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+                { x:'exp2', y:'real_ops', generator:'key_string_size', operation:'find_many', mode:'c', tag:'suite_find', status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'key_string_size', operation:'find_one', mode:'c', tag:'suite_find', status:'OK' }
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+                { x:'exp2', y:'real_ops', generator:'array_size_fixnum', operation:'find_one', mode:'c', tag:'suite_find', status:'OK' }
+            ],
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+                { x:'exp2', y:'user_ops', generator:'hash_size_fixnum', operation:'find_one', mode:'c', tag:'suite_find', status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'hash_size_fixnum', operation:'find_many', mode:'c', tag:'suite_find', status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'hash_size_fixnum', operation:'find_one', mode:'c', tag:'suite_find', status:'OK' }
+            ],
+            ''
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+            ],
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+            ],
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+            [
+                { x:'exp2', y:'user_ops', generator:'key_string_size', operation:'find_one', mode:'c', tag:'suite_find', status:'OK' },
+                { x:'exp2', y:'user_ops', generator:'key_string_size', operation:'find_one', mode:'ruby', tag:'suite_find', status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'key_string_size', operation:'find_one', mode:'c', tag:'suite_find', status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'key_string_size', operation:'find_one', mode:'ruby', tag:'suite_find', status:'OK' }
+            ],
+            ''
+        ],
+        [ '#c_vs_ruby', 'array_size_fixnum find one C versus Ruby', 'hidden', 12, 'mode',
+            [
+                { x:'exp2', y:'user_ops', generator:'array_size_fixnum', operation:'find_one', mode:'c', tag:'suite_find', status:'OK' },
+                { x:'exp2', y:'user_ops', generator:'array_size_fixnum', operation:'find_one', mode:'ruby', tag:'suite_find', status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'array_size_fixnum', operation:'find_one', mode:'c', tag:'suite_find', status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'array_size_fixnum', operation:'find_one', mode:'ruby', tag:'suite_find', status:'OK' }
+            ],
+            ''
+        ],
+        [ '#c_vs_ruby', 'hash_size_fixnum find one C versus Ruby', '', 12, 'mode',
+            [
+                { x:'exp2', y:'user_ops', generator:'hash_size_fixnum', operation:'find_one', mode:'c', tag:'suite_find', status:'OK' },
+                { x:'exp2', y:'user_ops', generator:'hash_size_fixnum', operation:'find_one', mode:'ruby', tag:'suite_find', status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'hash_size_fixnum', operation:'find_one', mode:'c', tag:'suite_find', status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'hash_size_fixnum', operation:'find_one', mode:'ruby', tag:'suite_find', status:'OK' }
+            ],
+            ''
+        ],
+        [ '#c_vs_ruby', 'array_nest_fixnum base 2 find one C versus Ruby', 'hidden', 12, 'mode',
+            [
+                { x:'exp2', y:'user_ops', generator:'array_nest_fixnum', operation:'find_one', mode:'c', tag:'suite_find', base:2, status:'OK' },
+                { x:'exp2', y:'user_ops', generator:'array_nest_fixnum', operation:'find_one', mode:'ruby', tag:'suite_find', base:2, status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'array_nest_fixnum', operation:'find_one', mode:'c', tag:'suite_find', base:2, status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'array_nest_fixnum', operation:'find_one', mode:'ruby', tag:'suite_find', base:2, status:'OK' }
+            ],
+            ''
+        ],
+        [ '#c_vs_ruby', 'hash_nest_fixnum base 2 find one C versus Ruby', 'hidden', 12, 'mode',
+            [
+                { x:'exp2', y:'user_ops', generator:'hash_nest_fixnum', operation:'find_one', mode:'c', tag:'suite_find', base:2, status:'OK' },
+                { x:'exp2', y:'user_ops', generator:'hash_nest_fixnum', operation:'find_one', mode:'ruby', tag:'suite_find', base:2, status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'hash_nest_fixnum', operation:'find_one', mode:'c', tag:'suite_find', base:2, status:'OK' },
+                { x:'exp2', y:'real_ops', generator:'hash_nest_fixnum', operation:'find_one', mode:'ruby', tag:'suite_find', base:2, status:'OK' }
+            ],
+            ''
+        ],
+        [ '#nested', 'array_nest_fixnum insert one C by base', 'hidden', 12, 'base',
+            [
+                { x:'exp2', y:'user_ops', base:2, generator:'array_nest_fixnum', operation:'insert', mode:'c', tag:'suite_insert_one', status:'OK' },
+                { x:'exp2', y:'user_ops', base:4, generator:'array_nest_fixnum', operation:'insert', mode:'c', tag:'suite_nest', status:'OK' },
+                { x:'exp2', y:'user_ops', base:8, generator:'array_nest_fixnum', operation:'insert', mode:'c', tag:'suite_nest', status:'OK' },
+                { x:'exp2', y:'user_ops', base:16, generator:'array_nest_fixnum', operation:'insert', mode:'c', tag:'suite_nest', status:'OK' },
+                { x:'exp2', y:'user_ops', base:32, generator:'array_nest_fixnum', operation:'insert', mode:'c', tag:'suite_nest', status:'OK' }
+            ],
+            ''
+        ],
+        [ '#nested', 'hash_nest_fixnum insert one C by base', 'hidden', 12, 'base',
+            [
+                { x:'exp2', y:'user_ops', base:2, generator:'hash_nest_fixnum', operation:'insert', mode:'c', tag:'suite_insert_one', status:'OK' },
+                { x:'exp2', y:'user_ops', base:4, generator:'hash_nest_fixnum', operation:'insert', mode:'c', tag:'suite_nest', status:'OK' },
+                { x:'exp2', y:'user_ops', base:8, generator:'hash_nest_fixnum', operation:'insert', mode:'c', tag:'suite_nest', status:'OK' },
+                { x:'exp2', y:'user_ops', base:16, generator:'hash_nest_fixnum', operation:'insert', mode:'c', tag:'suite_nest', status:'OK' },
+                { x:'exp2', y:'user_ops', base:32, generator:'hash_nest_fixnum', operation:'insert', mode:'c', tag:'suite_nest', status:'OK' }
+            ],
+            ''
+        ],
+        [ '#nested', 'array_nest_fixnum find one C by base', 'hidden', 12, 'base',
+            [
+                { x:'exp2', y:'user_ops', base:2, generator:'array_nest_fixnum', operation:'find_one', mode:'c', tag:'suite_find', status:'OK' },
+                { x:'exp2', y:'user_ops', base:4, generator:'array_nest_fixnum', operation:'find_one', mode:'c', tag:'suite_nest', status:'OK' },
+                { x:'exp2', y:'user_ops', base:8, generator:'array_nest_fixnum', operation:'find_one', mode:'c', tag:'suite_nest', status:'OK' },
+                { x:'exp2', y:'user_ops', base:16, generator:'array_nest_fixnum', operation:'find_one', mode:'c', tag:'suite_nest', status:'OK' },
+                { x:'exp2', y:'user_ops', base:32, generator:'array_nest_fixnum', operation:'find_one', mode:'c', tag:'suite_nest', status:'OK' }
+            ],
+            ''
+        ],
+        [ '#nested', 'hash_nest_fixnum find one C by base', 'hidden', 12, 'base',
+            [
+                { x:'exp2', y:'user_ops', base:2, generator:'hash_nest_fixnum', operation:'find_one', mode:'c', tag:'suite_find', status:'OK' },
+                { x:'exp2', y:'user_ops', base:4, generator:'hash_nest_fixnum', operation:'find_one', mode:'c', tag:'suite_nest', status:'OK' },
+                { x:'exp2', y:'user_ops', base:8, generator:'hash_nest_fixnum', operation:'find_one', mode:'c', tag:'suite_nest', status:'OK' },
+                { x:'exp2', y:'user_ops', base:16, generator:'hash_nest_fixnum', operation:'find_one', mode:'c', tag:'suite_nest', status:'OK' },
+                { x:'exp2', y:'user_ops', base:32, generator:'hash_nest_fixnum', operation:'find_one', mode:'c', tag:'suite_nest', status:'OK' }
+            ],
+            ''
+        ]
     ];
     $.each(graph, function(i, e){
-        var section, title, classes, xMax, labelSpec, plotSpecs;
-        //[section, title, classes, xMax, labelSpec, plotSpecs, notes] = e;
-        section = e[0], title = e[1]; classes = e[2], xMax = e[3]; labelSpec = e[4]; plotSpecs = e[5], notes = e[6];
-        var series = flotSeries(expSeries, xMax, labelSpec, plotSpecs);
+        var section, title, classes, xMax, labelSpec, plotLines;
+        //[section, title, classes, xMax, labelSpec, plotLines, notes] = e;
+        section = e[0]; title = e[1]; classes = e[2]; xMax = e[3]; labelSpec = e[4]; plotLines = e[5]; notes = e[6];
+        var series = flotSeries(expSeries, xMax, labelSpec, plotLines);
         doPlot(section, title, series, classes, notes);
     });
 
@@ -255,6 +654,21 @@ $(function () {
         $('#' + id).toggleClass('hidden');
     });
 
+    $('#show_all').bind('click', function(event) {
+        for (var i in graph) {
+            title = graph[i][1];
+            var id = title.replace(/\W/g,'_');
+            $('#' + id).removeClass('hidden');
+        }
+    });
+
+    $('#show_default').bind('click', function(event) {
+        for (var i in graph) {
+            title = graph[i][1];
+            var id = title.replace(/\W/g,'_');
+            $('#' + id).removeClass('hidden').addClass(graph[i][2]);
+        }
+    });
 });
 </script>
  </body>
diff --git a/bench/exp_series.rb b/bench/exp_series.rb
index 65d0de8..2039251 100644
--- a/bench/exp_series.rb
+++ b/bench/exp_series.rb
@@ -22,8 +22,8 @@ def set_mode(mode)
 end
 
 $description = 'Exploratory/Experimental/Exponential tests for Ruby-driver performance tuning'
-$calibration_runtime = 0.1
-$target_runtime = 5.0
+$calibration_runtime = 0.5
+$target_runtime = 15.0
 $db_name = 'benchmark'
 $collection_name = 'exp_series'
 $mode = set_mode('c')
@@ -31,22 +31,27 @@ $hostname = `uname -n`[/([^.]*)/,1]
 $osname = `uname -s`.strip
 $tag = `git log -1 --format=oneline`.split[0]
 $date = Time.now.strftime('%Y%m%d-%H%M')
+$file_name_opt = nil
 
 options_with_help = [
     [ '--help', '-h', GetoptLong::NO_ARGUMENT, '', 'show help' ],
+    [ '--file', '-f', GetoptLong::OPTIONAL_ARGUMENT, ' file', 'output file name' ],
     [ '--mode', '-m', GetoptLong::OPTIONAL_ARGUMENT, ' mode', 'set mode to "c" or "ruby" (c)' ],
     [ '--tag', '-t', GetoptLong::OPTIONAL_ARGUMENT, ' tag', 'set tag for run, default is git commit key' ]
 ]
 options = options_with_help.collect{|option|option[0...3]}
+
 GetoptLong.new(*options).each do |opt, arg|
   case opt
     when '--help'
       puts "#{$0} -- #{$description}\n"
       puts "usage: #{$0} [performance-options] [-- test-unit-options]"
-      puts "example: #{$0} --mode c --tag with-c-ext -- --verbose --name test_insert"
+      puts "example: #{$0} --mode c --tag with-c-ext -- --verbose verbose --name test_insert"
       puts "performance-options:"
       options_with_help.each{|option| puts "#{option[0]}#{option[3]}, #{option[1]}#{option[3]}\n\t#{option[4]}"}
       exit 0
+    when '--file'
+      $file_name_opt = arg
     when '--mode'
       $mode = set_mode(arg)
     when '--tag'
@@ -54,6 +59,8 @@ GetoptLong.new(*options).each do |opt, arg|
   end
 end
 
+$file_name = $file_name_opt ? $file_name_opt : "exp_series_#{$date}_#{$tag}_#{$mode}.js"
+
 require 'mongo' # must be after option processing
 
 class Hash
@@ -185,8 +192,8 @@ class TestExpPerformance < Test::Unit::TestCase
   def teardown_test_set
    # consider inserting the results into a database collection
     # Test::Unit::TestCase pollutes STDOUT, so write to a file
-    File.open("exp_series-#{$date}-#{$tag}.js", 'w+'){|f|
-      f.puts(@results.to_json.gsub(/\[/, "").gsub(/}[\],]/, "},\n")) unless @results.empty?
+    File.open($file_name, 'a'){|f|
+      f.puts(@results.to_json.gsub(/\[/, "").gsub(/}[\],]/, "},\n")) if @results != []
     }
     @conn.drop_database($db_name)
   end
@@ -196,6 +203,7 @@ class TestExpPerformance < Test::Unit::TestCase
     iterations = 1
     utime = 0.0
     while utime <= $calibration_runtime do
+      iterations *= 2
       setup.call(db, coll, doc, iterations)
       btms = Benchmark.measure do
         (0...iterations).each do
@@ -204,7 +212,6 @@ class TestExpPerformance < Test::Unit::TestCase
       end
       utime = btms.utime
       teardown.call(db, coll)
-      iterations *= 2
     end
     etime = (Time.now - start_time)
     return [(iterations.to_f * $target_runtime / utime).to_i, etime]
@@ -226,16 +233,23 @@ class TestExpPerformance < Test::Unit::TestCase
   end
 
   def power_test(args)
-    base, max_power, multi, generator, setup, operation, teardown = args
+    base, power_enum, multi_enum, generator, setup, operation, teardown = args
     generator, setup, operation, teardown = method(generator), method(setup), method(operation), method(teardown)
-    return (0..max_power).collect do |power|
-      multi_start, multi_end = (multi == -1) ? [-1, -1] : [0, multi]
-      (multi_start..multi_end).collect do |multi_power|
+    return power_enum.collect do |power|
+      multi_enum.collect do |multi_power|
+        status = 'OK'
         size, doc = generator.call(base, power)
         doc = multi_doc(multi_power, doc)
         multi_size = (doc.class == Array) ? doc.size : 1;
-        iterations, utime, rtime, etime = valuate(@db, @coll, doc, setup, teardown) { operation.call(@coll, doc) }
+        iterations, utime, rtime, etime = begin
+          valuate(@db, @coll, doc, setup, teardown) { operation.call(@coll, doc) }
+        rescue Mongo::InvalidOperation => e
+          status = "#{e.class}: #{e.message}"
+          [0, 1.0, 1.0, 1.0]
+        end
         multi_iterations = multi_size.to_f * iterations.to_f
+        user_ops = (multi_iterations / utime.to_f).round(1)
+        real_ops = (multi_iterations / rtime.to_f).round(1)
         result = {
             'base' => base,
             'power' => power,
@@ -246,21 +260,22 @@ class TestExpPerformance < Test::Unit::TestCase
             'generator' => generator.name.to_s,
             'operation' => operation.name.to_s,
             'iterations' => iterations,
-            'utime' => utime.round(2),
-            'rtime' => rtime.round(2),
-            'ut_ops' => (multi_iterations / utime.to_f).round(1),
-            'rt_ops' => (multi_iterations / rtime.to_f).round(1),
-            'ut_usec' => (1000000.0 * utime.to_f / multi_iterations).round(1),
-            'rt_usec' => (1000000.0 * rtime.to_f / multi_iterations).round(1),
-            'etime' => etime.round(2),
+            'user_time' => utime.round(2),
+            'real_time' => rtime.round(2),
+            'user_ops' => user_ops.nan? ? 0 : user_ops,
+            'real_ops' => real_ops.nan? ? 0 : real_ops,
+            'user_usec' => (1000000.0 * utime.to_f / [multi_iterations, 1].max).round(1),
+            'real_usec' => (1000000.0 * rtime.to_f / [multi_iterations, 1].max).round(1),
+            'est_time' => etime.round(2),
             'mode' => $mode,
             'hostname' => $hostname,
             'osname' => $osname,
             'date' => $date,
             'tag' => $tag,
+            'status' => status,
             # 'nbench-int' => nbench.int, # thinking
         }
-        STDERR.puts result.inspect
+        STDERR.puts result.to_json #result.inspect
         STDERR.flush
         result
       end
@@ -303,14 +318,9 @@ class TestExpPerformance < Test::Unit::TestCase
 
   end
 
-  def find_one_setup(db, coll, doc, iterations)
-    insert(coll, doc)
-  end
-
-  def cursor_setup(db, coll, doc, iterations)
-    (0...(iterations - coll.size)).each{insert(coll, doc)} #TODO - insert many
-    @cursor = coll.find
-    @queries = 1
+  def default_teardown(db, coll)
+    coll.remove
+    raise 'coll not removed' if coll.size > 0
   end
 
   def clear_ids(doc) # delete :_id to really insert, required for safe
@@ -331,7 +341,22 @@ class TestExpPerformance < Test::Unit::TestCase
     coll.insert(doc, :safe => true) # note that insert stores :_id in doc and subsequent inserts with :_id are updates
   end
 
-  def cursor_next(coll, doc)
+  def find_one_setup(db, coll, doc, iterations)
+    insert(coll, doc)
+  end
+
+  def find_one(coll, doc)
+    h = coll.find_one
+    raise "find_one failed" unless h
+  end
+
+  def find_many_setup(db, coll, doc, iterations)
+    (0...(iterations - coll.size)).each{insert(coll, doc)} #TODO - insert many
+    @cursor = coll.find
+    @queries = 1
+  end
+
+  def find_many(coll, doc)
     h = @cursor.next
     unless h
       @cursor = coll.find
@@ -340,17 +365,7 @@ class TestExpPerformance < Test::Unit::TestCase
     end
   end
 
-  def find_one(coll, doc)
-    h = coll.find_one
-    raise "find_one failed" unless h
-  end
-
-  def default_teardown(db, coll)
-    coll.remove
-    raise 'coll not removed' if coll.size > 0
-  end
-
-  def cursor_teardown(db, coll)
+  def find_many_teardown(db, coll)
     puts "queries: #{@queries}" if @queries > 1
     default_teardown(db, coll)
   end
@@ -359,87 +374,108 @@ class TestExpPerformance < Test::Unit::TestCase
     # just setup/teardown for options parsing and sys_info
   end
 
-  def test_insert
-    [
-        [2, 15, -1, :value_string_size, :null_setup, :insert, :default_teardown],
-        [2, 15, -1, :key_string_size, :null_setup, :insert, :default_teardown],
-        [2, 14, -1, :array_size_fixnum, :null_setup, :insert, :default_teardown],
-        [2, 17, -1, :hash_size_fixnum, :null_setup, :insert, :default_teardown],
-        [2, 12, -1, :array_nest_fixnum, :null_setup, :insert, :default_teardown],
-        [2, 15, -1, :hash_nest_fixnum, :null_setup, :insert, :default_teardown],
-    ].each{|args| @results += power_test(args)}
-  end
-
-  def test_insert_nest_full
-    [
-        [2, 12, -1, :array_nest_fixnum, :null_setup, :insert, :default_teardown],
-        [4, 6, -1, :array_nest_fixnum, :null_setup, :insert, :default_teardown],
-        [8, 4, -1, :array_nest_fixnum, :null_setup, :insert, :default_teardown],
-        [16, 3, -1, :array_nest_fixnum, :null_setup, :insert, :default_teardown],
-        [32, 2, -1, :array_nest_fixnum, :null_setup, :insert, :default_teardown],
-        [2, 15, -1, :hash_nest_fixnum, :null_setup, :insert, :default_teardown],
-        [4, 8, -1, :hash_nest_fixnum, :null_setup, :insert, :default_teardown],
-        [8, 4, -1, :hash_nest_fixnum, :null_setup, :insert, :default_teardown],
-        [16, 4, -1, :hash_nest_fixnum, :null_setup, :insert, :default_teardown],
-        [32, 3, -1, :hash_nest_fixnum, :null_setup, :insert, :default_teardown],
-    ].each{|args| @results += power_test(args)}
-  end
-
   def test_array_fast
     [
-        [2, 14, -1, :array_size_fixnum, :null_setup, :insert, :default_teardown],
-        [2, 17, -1, :hash_size_fixnum, :null_setup, :insert, :default_teardown],
-        [2, 12, -1, :array_nest_fixnum, :null_setup, :insert, :default_teardown],
-        [2, 15, -1, :hash_nest_fixnum, :null_setup, :insert, :default_teardown],
+        [2, (0..14), (-1..-1), :array_size_fixnum, :null_setup, :insert, :default_teardown],
+        [2, (0..17), (-1..-1), :hash_size_fixnum, :null_setup, :insert, :default_teardown],
+        [2, (0..12), (-1..-1), :array_nest_fixnum, :null_setup, :insert, :default_teardown],
+        [2, (0..15), (-1..-1), :hash_nest_fixnum, :null_setup, :insert, :default_teardown],
     ].each{|args| @results += power_test(args)}
   end
 
-  def test_insert_safe
+  def test_insert_one
     [
-        [2, 15, -1, :value_string_size, :null_setup, :insert_safe, :default_teardown],
-        [2, 15, -1, :key_string_size, :null_setup, :insert_safe, :default_teardown],
-        [2, 14, -1, :array_size_fixnum, :null_setup, :insert_safe, :default_teardown],
-        [2, 17, -1, :hash_size_fixnum, :null_setup, :insert_safe, :default_teardown],
-        [2, 12, -1, :array_nest_fixnum, :null_setup, :insert_safe, :default_teardown],
-        [2, 15, -1, :hash_nest_fixnum, :null_setup, :insert_safe, :default_teardown],
+        [2, (0..15), (-1..-1), :value_string_size, :null_setup, :insert, :default_teardown],
+        [2, (0..15), (-1..-1), :key_string_size, :null_setup, :insert, :default_teardown],
+        [2, (0..14), (-1..-1), :array_size_fixnum, :null_setup, :insert, :default_teardown],
+        [2, (0..17), (-1..-1), :hash_size_fixnum, :null_setup, :insert, :default_teardown],
+        [2, (0..12), (-1..-1), :array_nest_fixnum, :null_setup, :insert, :default_teardown],
+        [2, (0..15), (-1..-1), :hash_nest_fixnum, :null_setup, :insert, :default_teardown],
+    ].each{|args| @results += power_test(args)}
+  end
+
+  def test_insert_one_safe
+    [
+        [2, (0..15), (-1..-1), :value_string_size, :null_setup, :insert_safe, :default_teardown],
+        [2, (0..15), (-1..-1), :key_string_size, :null_setup, :insert_safe, :default_teardown],
+        [2, (0..14), (-1..-1), :array_size_fixnum, :null_setup, :insert_safe, :default_teardown],
+        [2, (0..17), (-1..-1), :hash_size_fixnum, :null_setup, :insert_safe, :default_teardown],
+        [2, (0..12), (-1..-1), :array_nest_fixnum, :null_setup, :insert_safe, :default_teardown],
+        [2, (0..15), (-1..-1), :hash_nest_fixnum, :null_setup, :insert_safe, :default_teardown],
     ].each{|args| @results += power_test(args)}
   end
 
   def test_insert_many
+    sizes = [0, 2, 4, 6, 8, 10, 12]
+    multi = [0, 2, 4, 6, 8, 10, 12]
     [
-        [2, 2, 10, :value_string_size, :null_setup, :insert, :default_teardown],
-        [2, 14, 10, :hash_size_fixnum, :null_setup, :insert, :default_teardown],
-        [2, 14, 10, :array_size_fixnum, :null_setup, :insert, :default_teardown],
+        [2, sizes, multi, :value_string_size, :null_setup, :insert, :default_teardown],
+        [2, sizes, multi, :key_string_size, :null_setup, :insert, :default_teardown],
+        [2, sizes, multi, :hash_size_fixnum, :null_setup, :insert, :default_teardown],
+        [2, sizes, multi, :array_size_fixnum, :null_setup, :insert, :default_teardown],
+        [2, sizes, multi, :array_nest_fixnum, :null_setup, :insert, :default_teardown],
+        [2, sizes, multi, :hash_nest_fixnum, :null_setup, :insert, :default_teardown],
     ].each{|args| @results += power_test(args)}
   end
 
   def test_insert_many_safe
+    sizes = [0, 2, 4, 6, 8, 10, 12]
+    multi = [0, 2, 4, 6, 8, 10, 12]
     [
-        [2, 2, 10, :value_string_size, :null_setup, :insert_safe, :default_teardown],
-        [2, 14, 10, :hash_size_fixnum, :null_setup, :insert_safe, :default_teardown],
-        [2, 14, 10, :array_size_fixnum, :null_setup, :insert_safe, :default_teardown],
-    ].each{|args| @results += power_test(args)}
-  end
-
-  def test_find
-    [
-        [2, 15, -1, :value_string_size, :cursor_setup, :cursor_next, :cursor_teardown],
-        [2, 15, -1, :key_string_size, :cursor_setup, :cursor_next, :cursor_teardown],
-        [2, 14, -1, :array_size_fixnum, :cursor_setup, :cursor_next, :cursor_teardown],
-        [2, 17, -1, :hash_size_fixnum, :cursor_setup, :cursor_next, :cursor_teardown],
-        [2, 12, -1, :array_nest_fixnum, :cursor_setup, :cursor_next, :cursor_teardown],
-        [2, 15, -1, :hash_nest_fixnum, :cursor_setup, :cursor_next, :cursor_teardown],
+        [2, sizes, multi, :value_string_size, :null_setup, :insert_safe, :default_teardown],
+        [2, sizes, multi, :key_string_size, :null_setup, :insert_safe, :default_teardown],
+        [2, sizes, multi, :hash_size_fixnum, :null_setup, :insert_safe, :default_teardown],
+        [2, sizes, multi, :array_size_fixnum, :null_setup, :insert_safe, :default_teardown],
+        [2, sizes, multi, :array_nest_fixnum, :null_setup, :insert_safe, :default_teardown],
+        [2, sizes, multi, :hash_nest_fixnum, :null_setup, :insert_safe, :default_teardown],
     ].each{|args| @results += power_test(args)}
   end
 
   def test_find_one
     [
-        [2, 15, -1, :value_string_size, :find_one_setup, :find_one, :default_teardown],
-        [2, 15, -1, :key_string_size, :find_one_setup, :find_one, :default_teardown],
-        [2, 14, -1, :array_size_fixnum, :find_one_setup, :find_one, :default_teardown],
-        [2, 17, -1, :hash_size_fixnum, :find_one_setup, :find_one, :default_teardown],
-        [2, 12, -1, :array_nest_fixnum, :find_one_setup, :find_one, :default_teardown],
-        [2, 15, -1, :hash_nest_fixnum, :find_one_setup, :find_one, :default_teardown],
+        [2, (0..15), (-1..-1), :value_string_size, :find_one_setup, :find_one, :default_teardown],
+        [2, (0..15), (-1..-1), :key_string_size, :find_one_setup, :find_one, :default_teardown],
+        [2, (0..14), (-1..-1), :array_size_fixnum, :find_one_setup, :find_one, :default_teardown],
+        [2, (0..17), (-1..-1), :hash_size_fixnum, :find_one_setup, :find_one, :default_teardown],
+        [2, (0..12), (-1..-1), :array_nest_fixnum, :find_one_setup, :find_one, :default_teardown],
+        [2, (0..15), (-1..-1), :hash_nest_fixnum, :find_one_setup, :find_one, :default_teardown],
+    ].each{|args| @results += power_test(args)}
+  end
+
+  def test_find_many
+    [
+        [2, (0..15), (-1..-1), :value_string_size, :find_many_setup, :find_many, :find_many_teardown],
+        [2, (0..15), (-1..-1), :key_string_size, :find_many_setup, :find_many, :find_many_teardown],
+        [2, (0..14), (-1..-1), :array_size_fixnum, :find_many_setup, :find_many, :find_many_teardown],
+        [2, (0..17), (-1..-1), :hash_size_fixnum, :find_many_setup, :find_many, :find_many_teardown],
+        [2, (0..12), (-1..-1), :array_nest_fixnum, :find_many_setup, :find_many, :find_many_teardown],
+        [2, (0..15), (-1..-1), :hash_nest_fixnum, :find_many_setup, :find_many, :find_many_teardown],
+    ].each{|args| @results += power_test(args)}
+  end
+
+  def test_insert_one_nest_full
+    [
+        [4, (0..6), (-1..-1), :array_nest_fixnum, :null_setup, :insert, :default_teardown],
+        [8, (0..4), (-1..-1), :array_nest_fixnum, :null_setup, :insert, :default_teardown],
+        [16, (0..3), (-1..-1), :array_nest_fixnum, :null_setup, :insert, :default_teardown],
+        [32, (0..2), (-1..-1), :array_nest_fixnum, :null_setup, :insert, :default_teardown],
+        [4, (0..8), (-1..-1), :hash_nest_fixnum, :null_setup, :insert, :default_teardown],
+        [8, (0..4), (-1..-1), :hash_nest_fixnum, :null_setup, :insert, :default_teardown],
+        [16, (0..4), (-1..-1), :hash_nest_fixnum, :null_setup, :insert, :default_teardown],
+        [32, (0..3), (-1..-1), :hash_nest_fixnum, :null_setup, :insert, :default_teardown],
+    ].each{|args| @results += power_test(args)}
+  end
+
+  def test_find_one_nest_full
+    [
+        [4, (0..6), (-1..-1), :array_nest_fixnum, :find_one_setup, :find_one, :default_teardown],
+        [8, (0..4), (-1..-1), :array_nest_fixnum, :find_one_setup, :find_one, :default_teardown],
+        [16, (0..3), (-1..-1), :array_nest_fixnum, :find_one_setup, :find_one, :default_teardown],
+        [32, (0..2), (-1..-1), :array_nest_fixnum, :find_one_setup, :find_one, :default_teardown],
+        [4, (0..8), (-1..-1), :hash_nest_fixnum, :find_one_setup, :find_one, :default_teardown],
+        [8, (0..4), (-1..-1), :hash_nest_fixnum, :find_one_setup, :find_one, :default_teardown],
+        [16, (0..4), (-1..-1), :hash_nest_fixnum, :find_one_setup, :find_one, :default_teardown],
+        [32, (0..3), (-1..-1), :hash_nest_fixnum, :find_one_setup, :find_one, :default_teardown],
     ].each{|args| @results += power_test(args)}
   end
 
diff --git a/bench/exp_series_suite_find_c.js b/bench/exp_series_suite_find_c.js
new file mode 100644
index 0000000..78911fd
--- /dev/null
+++ b/bench/exp_series_suite_find_c.js
@@ -0,0 +1,190 @@
+exp_series_suite_find_c = [
+{"base":2,"power":0,"size":1,"exp2":0,"multi_power":-1,"multi_size":1,"generator":"value_string_size","operation":"find_one","iterations":94523,"user_time":16.15,"real_time":27.14,"user_ops":5852.8,"real_ops":3482.6,"user_usec":170.9,"real_usec":287.1,"est_time":2.78,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":1,"size":2,"exp2":1,"multi_power":-1,"multi_size":1,"generator":"value_string_size","operation":"find_one","iterations":89043,"user_time":15.93,"real_time":27.51,"user_ops":5589.6,"real_ops":3236.6,"user_usec":178.9,"real_usec":309.0,"est_time":2.92,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":2,"size":4,"exp2":2,"multi_power":-1,"multi_size":1,"generator":"value_string_size","operation":"find_one","iterations":89043,"user_time":15.03,"real_time":25.27,"user_ops":5924.4,"real_ops":3523.8,"user_usec":168.8,"real_usec":283.8,"est_time":2.87,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":3,"size":8,"exp2":3,"multi_power":-1,"multi_size":1,"generator":"value_string_size","operation":"find_one","iterations":87771,"user_time":14.45,"real_time":23.69,"user_ops":6074.1,"real_ops":3704.5,"user_usec":164.6,"real_usec":269.9,"est_time":2.85,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":4,"size":16,"exp2":4,"multi_power":-1,"multi_size":1,"generator":"value_string_size","operation":"find_one","iterations":83027,"user_time":14.53,"real_time":24.83,"user_ops":5714.2,"real_ops":3343.8,"user_usec":175.0,"real_usec":299.1,"est_time":3.15,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":5,"size":32,"exp2":5,"multi_power":-1,"multi_size":1,"generator":"value_string_size","operation":"find_one","iterations":89043,"user_time":14.52,"real_time":23.8,"user_ops":6132.4,"real_ops":3741.2,"user_usec":163.1,"real_usec":267.3,"est_time":2.74,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":6,"size":64,"exp2":6,"multi_power":-1,"multi_size":1,"generator":"value_string_size","operation":"find_one","iterations":84164,"user_time":13.67,"real_time":22.15,"user_ops":6156.8,"real_ops":3800.3,"user_usec":162.4,"real_usec":263.1,"est_time":3.01,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":7,"size":128,"exp2":7,"multi_power":-1,"multi_size":1,"generator":"value_string_size","operation":"find_one","iterations":91701,"user_time":15.99,"real_time":27.21,"user_ops":5734.9,"real_ops":3370.0,"user_usec":174.4,"real_usec":296.7,"est_time":2.69,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":8,"size":256,"exp2":8,"multi_power":-1,"multi_size":1,"generator":"value_string_size","operation":"find_one","iterations":90352,"user_time":15.19,"real_time":25.6,"user_ops":5948.1,"real_ops":3530.0,"user_usec":168.1,"real_usec":283.3,"est_time":2.87,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":9,"size":512,"exp2":9,"multi_power":-1,"multi_size":1,"generator":"value_string_size","operation":"find_one","iterations":83027,"user_time":13.63,"real_time":22.04,"user_ops":6091.5,"real_ops":3766.3,"user_usec":164.2,"real_usec":265.5,"est_time":3.05,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":10,"size":1024,"exp2":10,"multi_power":-1,"multi_size":1,"generator":"value_string_size","operation":"find_one","iterations":87771,"user_time":15.7,"real_time":27.0,"user_ops":5590.5,"real_ops":3250.7,"user_usec":178.9,"real_usec":307.6,"est_time":2.96,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":11,"size":2048,"exp2":11,"multi_power":-1,"multi_size":1,"generator":"value_string_size","operation":"find_one","iterations":79792,"user_time":14.59,"real_time":25.63,"user_ops":5469.0,"real_ops":3113.0,"user_usec":182.9,"real_usec":321.2,"est_time":3.03,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":12,"size":4096,"exp2":12,"multi_power":-1,"multi_size":1,"generator":"value_string_size","operation":"find_one","iterations":85333,"user_time":15.82,"real_time":27.56,"user_ops":5394.0,"real_ops":3096.0,"user_usec":185.4,"real_usec":323.0,"est_time":3.27,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":13,"size":8192,"exp2":13,"multi_power":-1,"multi_size":1,"generator":"value_string_size","operation":"find_one","iterations":83027,"user_time":15.31,"real_time":26.18,"user_ops":5423.1,"real_ops":3171.7,"user_usec":184.4,"real_usec":315.3,"est_time":3.06,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":14,"size":16384,"exp2":14,"multi_power":-1,"multi_size":1,"generator":"value_string_size","operation":"find_one","iterations":83027,"user_time":15.44,"real_time":26.74,"user_ops":5377.4,"real_ops":3104.6,"user_usec":186.0,"real_usec":322.1,"est_time":3.14,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":15,"size":32768,"exp2":15,"multi_power":-1,"multi_size":1,"generator":"value_string_size","operation":"find_one","iterations":69818,"user_time":15.28,"real_time":27.12,"user_ops":4569.2,"real_ops":2574.5,"user_usec":218.9,"real_usec":388.4,"est_time":3.57,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":0,"size":1,"exp2":0,"multi_power":-1,"multi_size":1,"generator":"key_string_size","operation":"find_one","iterations":89043,"user_time":15.42,"real_time":26.24,"user_ops":5774.5,"real_ops":3393.4,"user_usec":173.2,"real_usec":294.7,"est_time":2.85,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":1,"size":2,"exp2":1,"multi_power":-1,"multi_size":1,"generator":"key_string_size","operation":"find_one","iterations":90352,"user_time":15.89,"real_time":27.21,"user_ops":5686.1,"real_ops":3320.0,"user_usec":175.9,"real_usec":301.2,"est_time":2.85,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":2,"size":4,"exp2":2,"multi_power":-1,"multi_size":1,"generator":"key_string_size","operation":"find_one","iterations":89043,"user_time":15.05,"real_time":25.3,"user_ops":5916.5,"real_ops":3519.9,"user_usec":169.0,"real_usec":284.1,"est_time":2.82,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":3,"size":8,"exp2":3,"multi_power":-1,"multi_size":1,"generator":"key_string_size","operation":"find_one","iterations":83027,"user_time":14.27,"real_time":24.27,"user_ops":5818.3,"real_ops":3421.2,"user_usec":171.9,"real_usec":292.3,"est_time":2.95,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":4,"size":16,"exp2":4,"multi_power":-1,"multi_size":1,"generator":"key_string_size","operation":"find_one","iterations":84164,"user_time":14.32,"real_time":24.1,"user_ops":5877.4,"real_ops":3492.9,"user_usec":170.1,"real_usec":286.3,"est_time":2.91,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":5,"size":32,"exp2":5,"multi_power":-1,"multi_size":1,"generator":"key_string_size","operation":"find_one","iterations":89043,"user_time":14.85,"real_time":24.52,"user_ops":5996.2,"real_ops":3630.9,"user_usec":166.8,"real_usec":275.4,"est_time":2.86,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":6,"size":64,"exp2":6,"multi_power":-1,"multi_size":1,"generator":"key_string_size","operation":"find_one","iterations":87771,"user_time":14.79,"real_time":24.61,"user_ops":5934.5,"real_ops":3565.9,"user_usec":168.5,"real_usec":280.4,"est_time":2.78,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":7,"size":128,"exp2":7,"multi_power":-1,"multi_size":1,"generator":"key_string_size","operation":"find_one","iterations":81920,"user_time":13.93,"real_time":23.39,"user_ops":5880.8,"real_ops":3502.0,"user_usec":170.0,"real_usec":285.5,"est_time":2.93,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":8,"size":256,"exp2":8,"multi_power":-1,"multi_size":1,"generator":"key_string_size","operation":"find_one","iterations":91701,"user_time":15.47,"real_time":26.15,"user_ops":5927.7,"real_ops":3506.3,"user_usec":168.7,"real_usec":285.2,"est_time":2.68,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":9,"size":512,"exp2":9,"multi_power":-1,"multi_size":1,"generator":"key_string_size","operation":"find_one","iterations":86535,"user_time":14.31,"real_time":23.17,"user_ops":6047.2,"real_ops":3734.9,"user_usec":165.4,"real_usec":267.7,"est_time":2.88,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":10,"size":1024,"exp2":10,"multi_power":-1,"multi_size":1,"generator":"key_string_size","operation":"find_one","iterations":87771,"user_time":14.49,"real_time":23.13,"user_ops":6057.3,"real_ops":3794.9,"user_usec":165.1,"real_usec":263.5,"est_time":2.93,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":11,"size":2048,"exp2":11,"multi_power":-1,"multi_size":1,"generator":"key_string_size","operation":"find_one","iterations":80842,"user_time":14.88,"real_time":25.83,"user_ops":5432.9,"real_ops":3130.0,"user_usec":184.1,"real_usec":319.5,"est_time":3.01,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":12,"size":4096,"exp2":12,"multi_power":-1,"multi_size":1,"generator":"key_string_size","operation":"find_one","iterations":87771,"user_time":15.21,"real_time":24.66,"user_ops":5770.6,"real_ops":3558.9,"user_usec":173.3,"real_usec":281.0,"est_time":2.8,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":13,"size":8192,"exp2":13,"multi_power":-1,"multi_size":1,"generator":"key_string_size","operation":"find_one","iterations":84164,"user_time":16.02,"real_time":27.57,"user_ops":5253.7,"real_ops":3053.1,"user_usec":190.3,"real_usec":327.5,"est_time":3.0,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":14,"size":16384,"exp2":14,"multi_power":-1,"multi_size":1,"generator":"key_string_size","operation":"find_one","iterations":78769,"user_time":14.59,"real_time":24.2,"user_ops":5398.8,"real_ops":3254.5,"user_usec":185.2,"real_usec":307.3,"est_time":3.24,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
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+{"base":2,"power":0,"size":1,"exp2":0,"multi_power":-1,"multi_size":1,"generator":"array_size_fixnum","operation":"find_one","iterations":90352,"user_time":15.31,"real_time":25.76,"user_ops":5901.5,"real_ops":3507.0,"user_usec":169.4,"real_usec":285.1,"est_time":2.9,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
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+{"base":2,"power":2,"size":4,"exp2":2,"multi_power":-1,"multi_size":1,"generator":"array_size_fixnum","operation":"find_one","iterations":87771,"user_time":14.95,"real_time":25.01,"user_ops":5871.0,"real_ops":3509.0,"user_usec":170.3,"real_usec":285.0,"est_time":3.07,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":3,"size":8,"exp2":3,"multi_power":-1,"multi_size":1,"generator":"array_size_fixnum","operation":"find_one","iterations":87771,"user_time":14.97,"real_time":25.18,"user_ops":5863.1,"real_ops":3485.3,"user_usec":170.6,"real_usec":286.9,"est_time":2.95,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":4,"size":16,"exp2":4,"multi_power":-1,"multi_size":1,"generator":"array_size_fixnum","operation":"find_one","iterations":81920,"user_time":13.63,"real_time":22.24,"user_ops":6010.3,"real_ops":3684.1,"user_usec":166.4,"real_usec":271.4,"est_time":3.15,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
+{"base":2,"power":5,"size":32,"exp2":5,"multi_power":-1,"multi_size":1,"generator":"array_size_fixnum","operation":"find_one","iterations":87771,"user_time":15.92,"real_time":27.32,"user_ops":5513.3,"real_ops":3212.7,"user_usec":181.4,"real_usec":311.3,"est_time":2.97,"mode":"c","hostname":"osprey","osname":"Darwin","date":"20120510-2251","tag":"suite_find","status":"OK"},
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diff --git a/bench/exp_series_suite_find_ruby.js b/bench/exp_series_suite_find_ruby.js
new file mode 100644
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diff --git a/bench/exp_series_suite_insert_many_c.js b/bench/exp_series_suite_insert_many_c.js
new file mode 100644
index 0000000..085bc9d
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diff --git a/bench/exp_series_suite_insert_many_ruby.js b/bench/exp_series_suite_insert_many_ruby.js
new file mode 100644
index 0000000..0a7a80a
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diff --git a/bench/exp_series_suite_insert_one_c.js b/bench/exp_series_suite_insert_one_c.js
new file mode 100644
index 0000000..76551b8
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new file mode 100644
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diff --git a/bench/exp_series_suite_nest_ruby.js b/bench/exp_series_suite_nest_ruby.js
new file mode 100644
index 0000000..b6a68f9
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