Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
Browse files

[Gary] profiling for both C and Ruby

  • Loading branch information...
commit ba0de1bc264cba19ce4378d19fe32bbbdf692452 1 parent 52cbaa6
@gjmurakami-10gen gjmurakami-10gen authored
View
1  Gemfile
@@ -16,6 +16,7 @@ group :development, :test do
gem "test-unit"
gem "ci_reporter"
gem "ruby-prof" unless RUBY_PLATFORM =~ /java/
+ gem "perftools.rb" unless RUBY_PLATFORM =~ /java/
# Java
platforms :jruby do
View
78 bench/exp_series.html
@@ -27,16 +27,22 @@
<div id="placeholder"></div>
<script type="text/javascript">
- function genOpXY(a, xMax, base, gen, op, xKey, yKey) {
- var genOpA = $.grep(a, function(e, i){return (e.exp2 <= xMax && e.base == base && e.generator == gen && e.operation == op);});
+ function genOpXY(a, xMax, plotSpec, xKey, yKey) {
+ 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;
+ }
+ return true;
+ });
return $.map(genOpA, function(e, i){return [[e[xKey], e[yKey]]];});
}
- function flotSeries(expSeries, xMax, a) {
- return $.map(a, function(e, i){
- var base = e[0]; gen = e[1]; var op = e[2];
+ function flotSeries(expSeries, xMax, plotSpecs) {
+ return $.map(plotSpecs, function(plotSpec, i){
+ var base = plotSpec.base; var gen = plotSpec.generator; var op = plotSpec.operation;
return {
label: gen + '-' + base,
- data: genOpXY(expSeries, xMax, base, gen, op, 'exp2', 'ops'),
+ data: genOpXY(expSeries, xMax, plotSpec, 'exp2', 'ops'),
lines: { show: true },
points: { show: true }
};
@@ -66,50 +72,56 @@
// comment pending
var graph = [
- [ 'value_string_size insert', 14, [
- [2, 'value_string_size', 'insert']
+ [ 'value_string_size insert C', 14,
+ [
+ { base:2, generator:'value_string_size', operation:'insert', mongo_driver_mode: 'c' }
]
],
- [ 'key_string_size insert', 14, [
- [2, 'key_string_size', 'insert']
+ [ 'key_string_size insert C', 14,
+ [
+ { base:2, generator:'key_string_size', operation:'insert', mongo_driver_mode: 'c' }
]
],
- [ 'array_size_fixnum insert', 12, [
- [2, 'array_size_fixnum', 'insert']
+ [ 'array_size_fixnum insert C', 12,
+ [
+ { base:2, generator:'array_size_fixnum', operation:'insert', mongo_driver_mode: 'c' }
]
],
- [ 'hash_size_fixnum insert', 12, [
- [2, 'hash_size_fixnum', 'insert']
+ [ 'hash_size_fixnum insert C', 12,
+ [
+ { base:2, generator:'hash_size_fixnum', operation:'insert', mongo_driver_mode: 'c' }
]
],
- [ 'array_nest_fixnum insert', 12, [
- [2, 'array_nest_fixnum', 'insert'],
- [4, 'array_nest_fixnum', 'insert'],
- [8, 'array_nest_fixnum', 'insert'],
- [16, 'array_nest_fixnum', 'insert'],
- [32, 'array_nest_fixnum', 'insert']
+ [ 'array_nest_fixnum insert C', 12,
+ [
+ { base:2, generator:'array_nest_fixnum', operation:'insert', mongo_driver_mode: 'c' },
+ { base:4, generator:'array_nest_fixnum', operation:'insert', mongo_driver_mode: 'c' },
+ { base:8, generator:'array_nest_fixnum', operation:'insert', mongo_driver_mode: 'c' },
+ { base:16, generator:'array_nest_fixnum', operation:'insert', mongo_driver_mode: 'c' },
+ { base:32, generator:'array_nest_fixnum', operation:'insert', mongo_driver_mode: 'c' }
]
],
- [ 'hash_nest_fixnum insert', 12, [
- [2, 'hash_nest_fixnum', 'insert'],
- [4, 'hash_nest_fixnum', 'insert'],
- [8, 'hash_nest_fixnum', 'insert'],
- [16, 'hash_nest_fixnum', 'insert'],
- [32, 'hash_nest_fixnum', 'insert']
+ [ 'hash_nest_fixnum insert C', 12,
+ [
+ { base:2, generator:'hash_nest_fixnum', operation:'insert', mongo_driver_mode: 'c' },
+ { base:4, generator:'hash_nest_fixnum', operation:'insert', mongo_driver_mode: 'c' },
+ { base:8, generator:'hash_nest_fixnum', operation:'insert', mongo_driver_mode: 'c' },
+ { base:16, generator:'hash_nest_fixnum', operation:'insert', mongo_driver_mode: 'c' },
+ { base:32, generator:'hash_nest_fixnum', operation:'insert', mongo_driver_mode: 'c' }
]
],
- [ 'compare array_size_fixnum hash_size_fixnum insert', 12, [
- [2, 'array_size_fixnum', 'insert'],
- [2, 'hash_size_fixnum', 'insert']
+ [ 'compare array_size_fixnum hash_size_fixnum insert C', 12,
+ [
+ { base:2, generator:'array_size_fixnum', operation:'insert', mongo_driver_mode: 'c' },
+ { base:2, generator:'hash_size_fixnum', operation:'insert', mongo_driver_mode: 'c' }
]
- ],
-
+ ]
];
$.each(graph, function(i, e){
var title = e[0];
var xMax = e[1];
- var baseSeriesGenOp = e[2];
- var series = flotSeries(expSeries, xMax, baseSeriesGenOp);
+ var plotSpecs = e[2];
+ var series = flotSeries(expSeries, xMax, plotSpecs);
doPlot(title, series);
});
View
409 bench/exp_series.js
@@ -1,137 +1,274 @@
expSeries = [
-{"base":2,"power":0,"size":1,"exp2":0,"generator":"value_string_size","operation":"insert","iterations":136533,"utime":10.05,"etime":2.18,"rtime":13.99,"ops":13585.4,"usec":73.6},
-{"base":2,"power":1,"size":2,"exp2":1,"generator":"value_string_size","operation":"insert","iterations":136533,"utime":10.0,"etime":2.82,"rtime":12.5,"ops":13653.3,"usec":73.2},
-{"base":2,"power":2,"size":4,"exp2":2,"generator":"value_string_size","operation":"insert","iterations":136533,"utime":10.09,"etime":2.79,"rtime":14.45,"ops":13531.5,"usec":73.9},
-{"base":2,"power":3,"size":8,"exp2":3,"generator":"value_string_size","operation":"insert","iterations":136533,"utime":10.0,"etime":2.87,"rtime":12.39,"ops":13653.3,"usec":73.2},
-{"base":2,"power":4,"size":16,"exp2":4,"generator":"value_string_size","operation":"insert","iterations":136533,"utime":9.95,"etime":2.98,"rtime":12.09,"ops":13721.9,"usec":72.9},
-{"base":2,"power":5,"size":32,"exp2":5,"generator":"value_string_size","operation":"insert","iterations":136533,"utime":10.04,"etime":2.9,"rtime":12.73,"ops":13598.9,"usec":73.5},
-{"base":2,"power":6,"size":64,"exp2":6,"generator":"value_string_size","operation":"insert","iterations":136533,"utime":10.23,"etime":3.58,"rtime":15.43,"ops":13346.3,"usec":74.9},
-{"base":2,"power":7,"size":128,"exp2":7,"generator":"value_string_size","operation":"insert","iterations":136533,"utime":10.19,"etime":3.49,"rtime":12.44,"ops":13398.7,"usec":74.6},
-{"base":2,"power":8,"size":256,"exp2":8,"generator":"value_string_size","operation":"insert","iterations":136533,"utime":10.71,"etime":3.74,"rtime":17.6,"ops":12748.2,"usec":78.4},
-{"base":2,"power":9,"size":512,"exp2":9,"generator":"value_string_size","operation":"insert","iterations":127999,"utime":9.92,"etime":3.86,"rtime":16.04,"ops":12903.1,"usec":77.5},
-{"base":2,"power":10,"size":1024,"exp2":10,"generator":"value_string_size","operation":"insert","iterations":127999,"utime":10.39,"etime":5.85,"rtime":13.78,"ops":12319.4,"usec":81.2},
-{"base":2,"power":11,"size":2048,"exp2":11,"generator":"value_string_size","operation":"insert","iterations":113777,"utime":10.32,"etime":4.67,"rtime":17.28,"ops":11024.9,"usec":90.7},
-{"base":2,"power":12,"size":4096,"exp2":12,"generator":"value_string_size","operation":"insert","iterations":102399,"utime":10.47,"etime":21.54,"rtime":20.57,"ops":9780.2,"usec":102.2},
-{"base":2,"power":13,"size":8192,"exp2":13,"generator":"value_string_size","operation":"insert","iterations":73142,"utime":9.61,"etime":9.64,"rtime":18.79,"ops":7611.0,"usec":131.4},
-{"base":2,"power":14,"size":16384,"exp2":14,"generator":"value_string_size","operation":"insert","iterations":51200,"utime":10.02,"etime":9.1,"rtime":107.18,"ops":5109.8,"usec":195.7},
-{"base":2,"power":15,"size":32768,"exp2":15,"generator":"value_string_size","operation":"insert","iterations":34133,"utime":10.8,"etime":9.43,"rtime":169.25,"ops":3160.5,"usec":316.4},
-{"base":2,"power":0,"size":1,"exp2":0,"generator":"key_string_size","operation":"insert","iterations":128000,"utime":9.29,"etime":37.42,"rtime":12.43,"ops":13778.3,"usec":72.6},
-{"base":2,"power":1,"size":2,"exp2":1,"generator":"key_string_size","operation":"insert","iterations":136533,"utime":9.88,"etime":5.55,"rtime":12.64,"ops":13819.1,"usec":72.4},
-{"base":2,"power":2,"size":4,"exp2":2,"generator":"key_string_size","operation":"insert","iterations":146285,"utime":10.62,"etime":7.39,"rtime":13.45,"ops":13774.5,"usec":72.6},
-{"base":2,"power":3,"size":8,"exp2":3,"generator":"key_string_size","operation":"insert","iterations":146285,"utime":11.03,"etime":4.05,"rtime":15.9,"ops":13262.5,"usec":75.4},
-{"base":2,"power":4,"size":16,"exp2":4,"generator":"key_string_size","operation":"insert","iterations":128000,"utime":10.45,"etime":3.92,"rtime":17.96,"ops":12248.8,"usec":81.6},
-{"base":2,"power":5,"size":32,"exp2":5,"generator":"key_string_size","operation":"insert","iterations":128000,"utime":10.26,"etime":5.27,"rtime":13.0,"ops":12475.6,"usec":80.2},
-{"base":2,"power":6,"size":64,"exp2":6,"generator":"key_string_size","operation":"insert","iterations":136533,"utime":10.96,"etime":3.59,"rtime":17.6,"ops":12457.4,"usec":80.3},
-{"base":2,"power":7,"size":128,"exp2":7,"generator":"key_string_size","operation":"insert","iterations":136533,"utime":10.67,"etime":4.46,"rtime":19.46,"ops":12796.0,"usec":78.1},
-{"base":2,"power":8,"size":256,"exp2":8,"generator":"key_string_size","operation":"insert","iterations":128000,"utime":9.83,"etime":11.72,"rtime":18.71,"ops":13021.4,"usec":76.8},
-{"base":2,"power":9,"size":512,"exp2":9,"generator":"key_string_size","operation":"insert","iterations":127999,"utime":10.16,"etime":6.84,"rtime":20.55,"ops":12598.3,"usec":79.4},
-{"base":2,"power":10,"size":1024,"exp2":10,"generator":"key_string_size","operation":"insert","iterations":120470,"utime":10.08,"etime":5.47,"rtime":16.68,"ops":11951.4,"usec":83.7},
-{"base":2,"power":11,"size":2048,"exp2":11,"generator":"key_string_size","operation":"insert","iterations":107789,"utime":10.05,"etime":6.64,"rtime":16.54,"ops":10725.3,"usec":93.2},
-{"base":2,"power":12,"size":4096,"exp2":12,"generator":"key_string_size","operation":"insert","iterations":85333,"utime":9.09,"etime":8.32,"rtime":46.2,"ops":9387.6,"usec":106.5},
-{"base":2,"power":13,"size":8192,"exp2":13,"generator":"key_string_size","operation":"insert","iterations":68266,"utime":9.84,"etime":7.96,"rtime":154.74,"ops":6937.6,"usec":144.1},
-{"base":2,"power":14,"size":16384,"exp2":14,"generator":"key_string_size","operation":"insert","iterations":46545,"utime":10.03,"etime":74.96,"rtime":33.71,"ops":4640.6,"usec":215.5},
-{"base":2,"power":15,"size":32768,"exp2":15,"generator":"key_string_size","operation":"insert","iterations":28444,"utime":10.67,"etime":69.27,"rtime":245.7,"ops":2665.8,"usec":375.1},
-{"base":2,"power":0,"size":1,"exp2":0,"generator":"array_size_fixnum","operation":"insert","iterations":128000,"utime":10.07,"etime":21.69,"rtime":13.13,"ops":12711.0,"usec":78.7},
-{"base":2,"power":1,"size":2,"exp2":1,"generator":"array_size_fixnum","operation":"insert","iterations":113777,"utime":9.99,"etime":4.61,"rtime":12.78,"ops":11389.1,"usec":87.8},
-{"base":2,"power":2,"size":4,"exp2":2,"generator":"array_size_fixnum","operation":"insert","iterations":107789,"utime":10.11,"etime":4.46,"rtime":13.33,"ops":10661.6,"usec":93.8},
-{"base":2,"power":3,"size":8,"exp2":3,"generator":"array_size_fixnum","operation":"insert","iterations":93090,"utime":11.0,"etime":4.18,"rtime":14.32,"ops":8462.7,"usec":118.2},
-{"base":2,"power":4,"size":16,"exp2":4,"generator":"array_size_fixnum","operation":"insert","iterations":60235,"utime":10.01,"etime":2.99,"rtime":12.49,"ops":6017.5,"usec":166.2},
-{"base":2,"power":5,"size":32,"exp2":5,"generator":"array_size_fixnum","operation":"insert","iterations":36571,"utime":9.42,"etime":2.46,"rtime":11.19,"ops":3882.3,"usec":257.6},
-{"base":2,"power":6,"size":64,"exp2":6,"generator":"array_size_fixnum","operation":"insert","iterations":23272,"utime":10.3,"etime":1.21,"rtime":12.05,"ops":2259.4,"usec":442.6},
-{"base":2,"power":7,"size":128,"exp2":7,"generator":"array_size_fixnum","operation":"insert","iterations":11636,"utime":9.36,"etime":1.36,"rtime":11.08,"ops":1243.2,"usec":804.4},
-{"base":2,"power":8,"size":256,"exp2":8,"generator":"array_size_fixnum","operation":"insert","iterations":6399,"utime":9.77,"etime":1.64,"rtime":11.52,"ops":655.0,"usec":1526.8},
-{"base":2,"power":9,"size":512,"exp2":9,"generator":"array_size_fixnum","operation":"insert","iterations":3199,"utime":9.56,"etime":1.11,"rtime":36.91,"ops":334.6,"usec":2988.4},
-{"base":2,"power":10,"size":1024,"exp2":10,"generator":"array_size_fixnum","operation":"insert","iterations":1599,"utime":9.56,"etime":0.29,"rtime":37.42,"ops":167.3,"usec":5978.7},
-{"base":2,"power":11,"size":2048,"exp2":11,"generator":"array_size_fixnum","operation":"insert","iterations":888,"utime":10.28,"etime":0.39,"rtime":12.27,"ops":86.4,"usec":11576.6},
-{"base":2,"power":12,"size":4096,"exp2":12,"generator":"array_size_fixnum","operation":"insert","iterations":399,"utime":9.25,"etime":0.23,"rtime":12.18,"ops":43.1,"usec":23183.0},
-{"base":2,"power":13,"size":8192,"exp2":13,"generator":"array_size_fixnum","operation":"insert","iterations":222,"utime":10.27,"etime":0.54,"rtime":14.75,"ops":21.6,"usec":46261.3},
-{"base":2,"power":14,"size":16384,"exp2":14,"generator":"array_size_fixnum","operation":"insert","iterations":111,"utime":10.16,"etime":0.43,"rtime":49.32,"ops":10.9,"usec":91531.5},
-{"base":2,"power":0,"size":1,"exp2":0,"generator":"hash_size_fixnum","operation":"insert","iterations":146285,"utime":10.73,"etime":0.38,"rtime":15.22,"ops":13633.3,"usec":73.3},
-{"base":2,"power":1,"size":2,"exp2":1,"generator":"hash_size_fixnum","operation":"insert","iterations":136533,"utime":9.91,"etime":9.02,"rtime":14.61,"ops":13777.3,"usec":72.6},
-{"base":2,"power":2,"size":4,"exp2":2,"generator":"hash_size_fixnum","operation":"insert","iterations":146285,"utime":10.78,"etime":4.55,"rtime":15.01,"ops":13570.0,"usec":73.7},
-{"base":2,"power":3,"size":8,"exp2":3,"generator":"hash_size_fixnum","operation":"insert","iterations":136533,"utime":10.25,"etime":4.34,"rtime":15.26,"ops":13320.3,"usec":75.1},
-{"base":2,"power":4,"size":16,"exp2":4,"generator":"hash_size_fixnum","operation":"insert","iterations":120470,"utime":9.77,"etime":6.15,"rtime":14.85,"ops":12330.6,"usec":81.1},
-{"base":2,"power":5,"size":32,"exp2":5,"generator":"hash_size_fixnum","operation":"insert","iterations":113777,"utime":9.76,"etime":4.1,"rtime":17.57,"ops":11657.5,"usec":85.8},
-{"base":2,"power":6,"size":64,"exp2":6,"generator":"hash_size_fixnum","operation":"insert","iterations":102399,"utime":10.33,"etime":5.1,"rtime":33.75,"ops":9912.8,"usec":100.9},
-{"base":2,"power":7,"size":128,"exp2":7,"generator":"hash_size_fixnum","operation":"insert","iterations":78769,"utime":9.81,"etime":7.31,"rtime":25.05,"ops":8029.5,"usec":124.5},
-{"base":2,"power":8,"size":256,"exp2":8,"generator":"hash_size_fixnum","operation":"insert","iterations":51199,"utime":8.82,"etime":7.33,"rtime":33.57,"ops":5804.9,"usec":172.3},
-{"base":2,"power":9,"size":512,"exp2":9,"generator":"hash_size_fixnum","operation":"insert","iterations":36571,"utime":9.93,"etime":8.05,"rtime":43.05,"ops":3682.9,"usec":271.5},
-{"base":2,"power":10,"size":1024,"exp2":10,"generator":"hash_size_fixnum","operation":"insert","iterations":21333,"utime":10.28,"etime":6.04,"rtime":37.91,"ops":2075.2,"usec":481.9},
-{"base":2,"power":11,"size":2048,"exp2":11,"generator":"hash_size_fixnum","operation":"insert","iterations":12799,"utime":11.29,"etime":2.99,"rtime":32.58,"ops":1133.7,"usec":882.1},
-{"base":2,"power":12,"size":4096,"exp2":12,"generator":"hash_size_fixnum","operation":"insert","iterations":5818,"utime":10.45,"etime":1.37,"rtime":76.14,"ops":556.7,"usec":1796.1},
-{"base":2,"power":13,"size":8192,"exp2":13,"generator":"hash_size_fixnum","operation":"insert","iterations":2461,"utime":10.44,"etime":1.42,"rtime":47.07,"ops":235.7,"usec":4242.2},
-{"base":2,"power":14,"size":16384,"exp2":14,"generator":"hash_size_fixnum","operation":"insert","iterations":727,"utime":8.67,"etime":0.93,"rtime":21.97,"ops":83.9,"usec":11925.7},
-{"base":2,"power":15,"size":32768,"exp2":15,"generator":"hash_size_fixnum","operation":"insert","iterations":615,"utime":10.13,"etime":1.25,"rtime":34.35,"ops":60.7,"usec":16471.5},
-{"base":2,"power":16,"size":65536,"exp2":16,"generator":"hash_size_fixnum","operation":"insert","iterations":333,"utime":10.4,"etime":1.29,"rtime":38.32,"ops":32.0,"usec":31231.2},
-{"base":2,"power":17,"size":131072,"exp2":17,"generator":"hash_size_fixnum","operation":"insert","iterations":125,"utime":8.95,"etime":0.83,"rtime":117.84,"ops":14.0,"usec":71600.0},
-{"base":2,"power":0,"size":1,"exp2":0,"generator":"array_nest_fixnum","operation":"insert","iterations":146285,"utime":9.95,"etime":0.45,"rtime":18.79,"ops":14702.0,"usec":68.0},
-{"base":2,"power":1,"size":2,"exp2":1,"generator":"array_nest_fixnum","operation":"insert","iterations":120470,"utime":10.06,"etime":6.83,"rtime":12.96,"ops":11975.1,"usec":83.5},
-{"base":2,"power":2,"size":4,"exp2":2,"generator":"array_nest_fixnum","operation":"insert","iterations":93090,"utime":10.29,"etime":5.96,"rtime":19.01,"ops":9046.6,"usec":110.5},
-{"base":2,"power":3,"size":8,"exp2":3,"generator":"array_nest_fixnum","operation":"insert","iterations":56888,"utime":9.32,"etime":4.96,"rtime":229.02,"ops":6103.9,"usec":163.8},
-{"base":2,"power":4,"size":16,"exp2":4,"generator":"array_nest_fixnum","operation":"insert","iterations":36571,"utime":9.8,"etime":3.13,"rtime":11.34,"ops":3731.7,"usec":268.0},
-{"base":2,"power":5,"size":32,"exp2":5,"generator":"array_nest_fixnum","operation":"insert","iterations":19692,"utime":9.41,"etime":1.41,"rtime":49.94,"ops":2092.7,"usec":477.9},
-{"base":2,"power":6,"size":64,"exp2":6,"generator":"array_nest_fixnum","operation":"insert","iterations":10666,"utime":9.47,"etime":1.96,"rtime":16.72,"ops":1126.3,"usec":887.9},
-{"base":2,"power":7,"size":128,"exp2":7,"generator":"array_nest_fixnum","operation":"insert","iterations":5818,"utime":9.94,"etime":0.64,"rtime":18.24,"ops":585.3,"usec":1708.5},
-{"base":2,"power":8,"size":256,"exp2":8,"generator":"array_nest_fixnum","operation":"insert","iterations":2909,"utime":9.63,"etime":0.99,"rtime":11.05,"ops":302.1,"usec":3310.4},
-{"base":2,"power":9,"size":512,"exp2":9,"generator":"array_nest_fixnum","operation":"insert","iterations":1454,"utime":9.68,"etime":0.73,"rtime":19.38,"ops":150.2,"usec":6657.5},
-{"base":2,"power":10,"size":1024,"exp2":10,"generator":"array_nest_fixnum","operation":"insert","iterations":727,"utime":9.63,"etime":0.23,"rtime":10.92,"ops":75.5,"usec":13246.2},
-{"base":2,"power":11,"size":2048,"exp2":11,"generator":"array_nest_fixnum","operation":"insert","iterations":363,"utime":9.44,"etime":0.21,"rtime":10.43,"ops":38.5,"usec":26005.5},
-{"base":2,"power":12,"size":4096,"exp2":12,"generator":"array_nest_fixnum","operation":"insert","iterations":181,"utime":9.32,"etime":0.17,"rtime":9.94,"ops":19.4,"usec":51491.7},
-{"base":4,"power":0,"size":1,"exp2":0,"generator":"array_nest_fixnum","operation":"insert","iterations":157538,"utime":10.86,"etime":0.36,"rtime":14.97,"ops":14506.3,"usec":68.9},
-{"base":4,"power":1,"size":4,"exp2":2,"generator":"array_nest_fixnum","operation":"insert","iterations":102399,"utime":9.91,"etime":9.4,"rtime":12.8,"ops":10332.9,"usec":96.8},
-{"base":4,"power":2,"size":16,"exp2":4,"generator":"array_nest_fixnum","operation":"insert","iterations":51199,"utime":10.38,"etime":4.53,"rtime":12.14,"ops":4932.5,"usec":202.7},
-{"base":4,"power":3,"size":64,"exp2":6,"generator":"array_nest_fixnum","operation":"insert","iterations":16000,"utime":9.83,"etime":2.13,"rtime":10.66,"ops":1627.7,"usec":614.4},
-{"base":4,"power":4,"size":256,"exp2":8,"generator":"array_nest_fixnum","operation":"insert","iterations":3999,"utime":9.08,"etime":0.92,"rtime":33.64,"ops":440.4,"usec":2270.6},
-{"base":4,"power":5,"size":1024,"exp2":10,"generator":"array_nest_fixnum","operation":"insert","iterations":1142,"utime":10.01,"etime":0.73,"rtime":11.07,"ops":114.1,"usec":8765.3},
-{"base":4,"power":6,"size":4096,"exp2":12,"generator":"array_nest_fixnum","operation":"insert","iterations":307,"utime":10.51,"etime":0.27,"rtime":11.15,"ops":29.2,"usec":34234.5},
-{"base":8,"power":0,"size":1,"exp2":0,"generator":"array_nest_fixnum","operation":"insert","iterations":136533,"utime":9.35,"etime":0.36,"rtime":12.96,"ops":14602.5,"usec":68.5},
-{"base":8,"power":1,"size":8,"exp2":3,"generator":"array_nest_fixnum","operation":"insert","iterations":85333,"utime":10.54,"etime":11.18,"rtime":12.79,"ops":8096.1,"usec":123.5},
-{"base":8,"power":2,"size":64,"exp2":6,"generator":"array_nest_fixnum","operation":"insert","iterations":18285,"utime":9.95,"etime":3.08,"rtime":12.16,"ops":1837.7,"usec":544.2},
-{"base":8,"power":3,"size":512,"exp2":9,"generator":"array_nest_fixnum","operation":"insert","iterations":2461,"utime":9.29,"etime":1.07,"rtime":10.3,"ops":264.9,"usec":3774.9},
-{"base":8,"power":4,"size":4096,"exp2":12,"generator":"array_nest_fixnum","operation":"insert","iterations":307,"utime":9.05,"etime":0.36,"rtime":16.31,"ops":33.9,"usec":29478.8},
-{"base":16,"power":0,"size":1,"exp2":0,"generator":"array_nest_fixnum","operation":"insert","iterations":146285,"utime":10.01,"etime":0.35,"rtime":23.91,"ops":14613.9,"usec":68.4},
-{"base":16,"power":1,"size":16,"exp2":4,"generator":"array_nest_fixnum","operation":"insert","iterations":56888,"utime":10.16,"etime":4.5,"rtime":13.81,"ops":5599.2,"usec":178.6},
-{"base":16,"power":2,"size":256,"exp2":8,"generator":"array_nest_fixnum","operation":"insert","iterations":5818,"utime":10.7,"etime":3.19,"rtime":12.46,"ops":543.7,"usec":1839.1},
-{"base":16,"power":3,"size":4096,"exp2":12,"generator":"array_nest_fixnum","operation":"insert","iterations":333,"utime":9.16,"etime":0.87,"rtime":10.1,"ops":36.4,"usec":27507.5},
-{"base":32,"power":0,"size":1,"exp2":0,"generator":"array_nest_fixnum","operation":"insert","iterations":146285,"utime":10.0,"etime":0.36,"rtime":13.3,"ops":14628.5,"usec":68.4},
-{"base":32,"power":1,"size":32,"exp2":5,"generator":"array_nest_fixnum","operation":"insert","iterations":34133,"utime":9.68,"etime":4.38,"rtime":11.39,"ops":3526.1,"usec":283.6},
-{"base":32,"power":2,"size":1024,"exp2":10,"generator":"array_nest_fixnum","operation":"insert","iterations":1454,"utime":9.97,"etime":2.79,"rtime":11.19,"ops":145.8,"usec":6856.9},
-{"base":2,"power":0,"size":1,"exp2":0,"generator":"hash_nest_fixnum","operation":"insert","iterations":136533,"utime":9.36,"etime":0.38,"rtime":12.73,"ops":14586.9,"usec":68.6},
-{"base":2,"power":1,"size":2,"exp2":1,"generator":"hash_nest_fixnum","operation":"insert","iterations":146285,"utime":10.0,"etime":16.55,"rtime":18.64,"ops":14628.5,"usec":68.4},
-{"base":2,"power":2,"size":4,"exp2":2,"generator":"hash_nest_fixnum","operation":"insert","iterations":157538,"utime":11.07,"etime":26.68,"rtime":24.48,"ops":14231.1,"usec":70.3},
-{"base":2,"power":3,"size":8,"exp2":3,"generator":"hash_nest_fixnum","operation":"insert","iterations":136533,"utime":10.14,"etime":7.95,"rtime":28.13,"ops":13464.8,"usec":74.3},
-{"base":2,"power":4,"size":16,"exp2":4,"generator":"hash_nest_fixnum","operation":"insert","iterations":113777,"utime":9.46,"etime":15.98,"rtime":12.98,"ops":12027.2,"usec":83.1},
-{"base":2,"power":5,"size":32,"exp2":5,"generator":"hash_nest_fixnum","operation":"insert","iterations":102399,"utime":9.72,"etime":4.09,"rtime":52.38,"ops":10534.9,"usec":94.9},
-{"base":2,"power":6,"size":64,"exp2":6,"generator":"hash_nest_fixnum","operation":"insert","iterations":78769,"utime":9.84,"etime":5.54,"rtime":60.71,"ops":8005.0,"usec":124.9},
-{"base":2,"power":7,"size":128,"exp2":7,"generator":"hash_nest_fixnum","operation":"insert","iterations":60235,"utime":10.36,"etime":11.54,"rtime":78.88,"ops":5814.2,"usec":172.0},
-{"base":2,"power":8,"size":256,"exp2":8,"generator":"hash_nest_fixnum","operation":"insert","iterations":36571,"utime":10.18,"etime":7.21,"rtime":21.93,"ops":3592.4,"usec":278.4},
-{"base":2,"power":9,"size":512,"exp2":9,"generator":"hash_nest_fixnum","operation":"insert","iterations":19692,"utime":9.78,"etime":106.23,"rtime":43.84,"ops":2013.5,"usec":496.6},
-{"base":2,"power":10,"size":1024,"exp2":10,"generator":"hash_nest_fixnum","operation":"insert","iterations":10666,"utime":9.86,"etime":3.1,"rtime":14.52,"ops":1081.7,"usec":924.4},
-{"base":2,"power":11,"size":2048,"exp2":11,"generator":"hash_nest_fixnum","operation":"insert","iterations":5333,"utime":9.68,"etime":71.52,"rtime":42.08,"ops":550.9,"usec":1815.1},
-{"base":2,"power":12,"size":4096,"exp2":12,"generator":"hash_nest_fixnum","operation":"insert","iterations":2285,"utime":10.0,"etime":1.78,"rtime":13.67,"ops":228.5,"usec":4376.4},
-{"base":2,"power":13,"size":8192,"exp2":13,"generator":"hash_nest_fixnum","operation":"insert","iterations":1000,"utime":9.6,"etime":0.64,"rtime":11.58,"ops":104.2,"usec":9600.0},
-{"base":2,"power":14,"size":16384,"exp2":14,"generator":"hash_nest_fixnum","operation":"insert","iterations":421,"utime":9.54,"etime":0.54,"rtime":35.17,"ops":44.1,"usec":22660.3},
-{"base":2,"power":15,"size":32768,"exp2":15,"generator":"hash_nest_fixnum","operation":"insert","iterations":181,"utime":7.96,"etime":0.59,"rtime":9.8,"ops":22.7,"usec":43977.9},
-{"base":4,"power":0,"size":1,"exp2":0,"generator":"hash_nest_fixnum","operation":"insert","iterations":157538,"utime":10.8,"etime":0.34,"rtime":43.16,"ops":14586.9,"usec":68.6},
-{"base":4,"power":1,"size":4,"exp2":2,"generator":"hash_nest_fixnum","operation":"insert","iterations":146285,"utime":10.39,"etime":8.4,"rtime":31.91,"ops":14079.4,"usec":71.0},
-{"base":4,"power":2,"size":16,"exp2":4,"generator":"hash_nest_fixnum","operation":"insert","iterations":127999,"utime":9.68,"etime":24.6,"rtime":46.3,"ops":13223.0,"usec":75.6},
-{"base":4,"power":3,"size":64,"exp2":6,"generator":"hash_nest_fixnum","operation":"insert","iterations":93090,"utime":9.23,"etime":18.63,"rtime":27.41,"ops":10085.6,"usec":99.2},
-{"base":4,"power":4,"size":256,"exp2":8,"generator":"hash_nest_fixnum","operation":"insert","iterations":56888,"utime":10.28,"etime":25.97,"rtime":26.29,"ops":5533.9,"usec":180.7},
-{"base":4,"power":5,"size":1024,"exp2":10,"generator":"hash_nest_fixnum","operation":"insert","iterations":21333,"utime":10.67,"etime":144.94,"rtime":161.78,"ops":1999.3,"usec":500.2},
-{"base":4,"power":6,"size":4096,"exp2":12,"generator":"hash_nest_fixnum","operation":"insert","iterations":5333,"utime":10.25,"etime":3.53,"rtime":12.63,"ops":520.3,"usec":1922.0},
-{"base":4,"power":7,"size":16384,"exp2":14,"generator":"hash_nest_fixnum","operation":"insert","iterations":1142,"utime":10.43,"etime":0.74,"rtime":12.8,"ops":109.5,"usec":9133.1},
-{"base":4,"power":8,"size":65536,"exp2":16,"generator":"hash_nest_fixnum","operation":"insert","iterations":142,"utime":10.86,"etime":0.25,"rtime":12.17,"ops":13.1,"usec":76478.9},
-{"base":8,"power":0,"size":1,"exp2":0,"generator":"hash_nest_fixnum","operation":"insert","iterations":146285,"utime":9.85,"etime":0.42,"rtime":90.49,"ops":14851.3,"usec":67.3},
-{"base":8,"power":1,"size":8,"exp2":3,"generator":"hash_nest_fixnum","operation":"insert","iterations":136533,"utime":9.57,"etime":52.26,"rtime":25.46,"ops":14266.8,"usec":70.1},
-{"base":8,"power":2,"size":64,"exp2":6,"generator":"hash_nest_fixnum","operation":"insert","iterations":113777,"utime":10.3,"etime":8.6,"rtime":152.42,"ops":11046.3,"usec":90.5},
-{"base":8,"power":3,"size":512,"exp2":9,"generator":"hash_nest_fixnum","operation":"insert","iterations":42666,"utime":9.97,"etime":18.08,"rtime":148.86,"ops":4279.4,"usec":233.7},
-{"base":8,"power":4,"size":4096,"exp2":12,"generator":"hash_nest_fixnum","operation":"insert","iterations":7111,"utime":9.75,"etime":103.25,"rtime":59.03,"ops":729.3,"usec":1371.1},
-{"base":16,"power":0,"size":1,"exp2":0,"generator":"hash_nest_fixnum","operation":"insert","iterations":157538,"utime":10.71,"etime":1.81,"rtime":47.49,"ops":14709.4,"usec":68.0},
-{"base":16,"power":1,"size":16,"exp2":4,"generator":"hash_nest_fixnum","operation":"insert","iterations":146285,"utime":10.6,"etime":16.1,"rtime":147.91,"ops":13800.5,"usec":72.5},
-{"base":16,"power":2,"size":256,"exp2":8,"generator":"hash_nest_fixnum","operation":"insert","iterations":60235,"utime":8.85,"etime":61.27,"rtime":184.66,"ops":6806.2,"usec":146.9},
-{"base":16,"power":3,"size":4096,"exp2":12,"generator":"hash_nest_fixnum","operation":"insert","iterations":7999,"utime":10.33,"etime":9.2,"rtime":13.69,"ops":774.3,"usec":1291.4},
-{"base":16,"power":4,"size":65536,"exp2":16,"generator":"hash_nest_fixnum","operation":"insert","iterations":333,"utime":9.39,"etime":1.44,"rtime":11.26,"ops":35.5,"usec":28198.2},
-{"base":32,"power":0,"size":1,"exp2":0,"generator":"hash_nest_fixnum","operation":"insert","iterations":146285,"utime":9.95,"etime":0.45,"rtime":199.41,"ops":14702.0,"usec":68.0},
-{"base":32,"power":1,"size":32,"exp2":5,"generator":"hash_nest_fixnum","operation":"insert","iterations":136533,"utime":10.55,"etime":26.98,"rtime":45.46,"ops":12941.5,"usec":77.3},
-{"base":32,"power":2,"size":1024,"exp2":10,"generator":"hash_nest_fixnum","operation":"insert","iterations":30117,"utime":10.42,"etime":173.43,"rtime":247.61,"ops":2890.3,"usec":346.0},
-{"base":32,"power":3,"size":32768,"exp2":15,"generator":"hash_nest_fixnum","operation":"insert","iterations":941,"utime":10.9,"etime":5.7,"rtime":18.17,"ops":86.3,"usec":11583.4}];
+{"base":2,"power":0,"size":1,"exp2":0,"generator":"value_string_size","operation":"insert","iterations":128000,"utime":9.65,"etime":0.36,"rtime":11.03,"ops":13264.2,"usec":75.4,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":1,"size":2,"exp2":1,"generator":"value_string_size","operation":"insert","iterations":127999,"utime":9.8,"etime":0.35,"rtime":12.08,"ops":13061.1,"usec":76.6,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":2,"size":4,"exp2":2,"generator":"value_string_size","operation":"insert","iterations":127999,"utime":9.89,"etime":0.36,"rtime":12.21,"ops":12942.3,"usec":77.3,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":3,"size":8,"exp2":3,"generator":"value_string_size","operation":"insert","iterations":127999,"utime":9.92,"etime":0.36,"rtime":12.42,"ops":12903.1,"usec":77.5,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":4,"size":16,"exp2":4,"generator":"value_string_size","operation":"insert","iterations":120470,"utime":9.38,"etime":0.38,"rtime":11.86,"ops":12843.3,"usec":77.9,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":5,"size":32,"exp2":5,"generator":"value_string_size","operation":"insert","iterations":128000,"utime":10.06,"etime":0.37,"rtime":12.69,"ops":12723.7,"usec":78.6,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":6,"size":64,"exp2":6,"generator":"value_string_size","operation":"insert","iterations":120470,"utime":9.42,"etime":0.38,"rtime":13.3,"ops":12788.7,"usec":78.2,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":7,"size":128,"exp2":7,"generator":"value_string_size","operation":"insert","iterations":127999,"utime":10.01,"etime":0.37,"rtime":13.4,"ops":12787.1,"usec":78.2,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":8,"size":256,"exp2":8,"generator":"value_string_size","operation":"insert","iterations":128000,"utime":10.42,"etime":2.75,"rtime":11.88,"ops":12284.1,"usec":81.4,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":9,"size":512,"exp2":9,"generator":"value_string_size","operation":"insert","iterations":120470,"utime":10.27,"etime":3.16,"rtime":11.69,"ops":11730.3,"usec":85.2,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":10,"size":1024,"exp2":10,"generator":"value_string_size","operation":"insert","iterations":113777,"utime":9.9,"etime":4.54,"rtime":11.59,"ops":11492.6,"usec":87.0,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":11,"size":2048,"exp2":11,"generator":"value_string_size","operation":"insert","iterations":102399,"utime":9.67,"etime":3.59,"rtime":12.37,"ops":10589.3,"usec":94.4,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":12,"size":4096,"exp2":12,"generator":"value_string_size","operation":"insert","iterations":93090,"utime":9.82,"etime":4.13,"rtime":13.61,"ops":9479.6,"usec":105.5,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":13,"size":8192,"exp2":13,"generator":"value_string_size","operation":"insert","iterations":78769,"utime":10.76,"etime":7.65,"rtime":22.1,"ops":7320.5,"usec":136.6,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":14,"size":16384,"exp2":14,"generator":"value_string_size","operation":"insert","iterations":48761,"utime":9.77,"etime":7.11,"rtime":16.75,"ops":4990.9,"usec":200.4,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":15,"size":32768,"exp2":15,"generator":"value_string_size","operation":"insert","iterations":32000,"utime":10.19,"etime":6.97,"rtime":18.3,"ops":3140.3,"usec":318.4,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":0,"size":1,"exp2":0,"generator":"key_string_size","operation":"insert","iterations":120470,"utime":9.46,"etime":0.38,"rtime":14.86,"ops":12734.7,"usec":78.5,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":1,"size":2,"exp2":1,"generator":"key_string_size","operation":"insert","iterations":120470,"utime":9.37,"etime":0.38,"rtime":11.96,"ops":12857.0,"usec":77.8,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":2,"size":4,"exp2":2,"generator":"key_string_size","operation":"insert","iterations":128000,"utime":9.87,"etime":0.36,"rtime":13.23,"ops":12968.6,"usec":77.1,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":3,"size":8,"exp2":3,"generator":"key_string_size","operation":"insert","iterations":128000,"utime":9.72,"etime":0.37,"rtime":12.27,"ops":13168.7,"usec":75.9,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":4,"size":16,"exp2":4,"generator":"key_string_size","operation":"insert","iterations":128000,"utime":9.9,"etime":0.36,"rtime":12.47,"ops":12929.3,"usec":77.3,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":5,"size":32,"exp2":5,"generator":"key_string_size","operation":"insert","iterations":128000,"utime":9.95,"etime":0.37,"rtime":13.1,"ops":12864.3,"usec":77.7,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":6,"size":64,"exp2":6,"generator":"key_string_size","operation":"insert","iterations":128000,"utime":10.02,"etime":0.37,"rtime":12.69,"ops":12774.5,"usec":78.3,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":7,"size":128,"exp2":7,"generator":"key_string_size","operation":"insert","iterations":113777,"utime":8.96,"etime":0.38,"rtime":12.73,"ops":12698.3,"usec":78.8,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":8,"size":256,"exp2":8,"generator":"key_string_size","operation":"insert","iterations":128000,"utime":10.42,"etime":2.77,"rtime":11.79,"ops":12284.1,"usec":81.4,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":9,"size":512,"exp2":9,"generator":"key_string_size","operation":"insert","iterations":120470,"utime":10.32,"etime":4.4,"rtime":11.75,"ops":11673.4,"usec":85.7,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":10,"size":1024,"exp2":10,"generator":"key_string_size","operation":"insert","iterations":113777,"utime":10.28,"etime":4.02,"rtime":12.73,"ops":11067.8,"usec":90.4,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":11,"size":2048,"exp2":11,"generator":"key_string_size","operation":"insert","iterations":93090,"utime":9.33,"etime":5.66,"rtime":13.53,"ops":9977.5,"usec":100.2,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":12,"size":4096,"exp2":12,"generator":"key_string_size","operation":"insert","iterations":85333,"utime":9.84,"etime":5.81,"rtime":18.25,"ops":8672.1,"usec":115.3,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":13,"size":8192,"exp2":13,"generator":"key_string_size","operation":"insert","iterations":68266,"utime":10.37,"etime":7.91,"rtime":20.37,"ops":6583.0,"usec":151.9,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":14,"size":16384,"exp2":14,"generator":"key_string_size","operation":"insert","iterations":42666,"utime":9.8,"etime":9.71,"rtime":19.42,"ops":4353.7,"usec":229.7,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":15,"size":32768,"exp2":15,"generator":"key_string_size","operation":"insert","iterations":25599,"utime":9.95,"etime":7.33,"rtime":20.6,"ops":2572.8,"usec":388.7,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":0,"size":1,"exp2":0,"generator":"array_size_fixnum","operation":"insert","iterations":120470,"utime":9.85,"etime":0.39,"rtime":21.54,"ops":12230.5,"usec":81.8,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":1,"size":2,"exp2":1,"generator":"array_size_fixnum","operation":"insert","iterations":120470,"utime":10.6,"etime":0.4,"rtime":14.07,"ops":11365.1,"usec":88.0,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":2,"size":4,"exp2":2,"generator":"array_size_fixnum","operation":"insert","iterations":102399,"utime":9.59,"etime":0.22,"rtime":12.65,"ops":10677.7,"usec":93.7,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":3,"size":8,"exp2":3,"generator":"array_size_fixnum","operation":"insert","iterations":93090,"utime":10.48,"etime":0.25,"rtime":13.28,"ops":8882.6,"usec":112.6,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":4,"size":16,"exp2":4,"generator":"array_size_fixnum","operation":"insert","iterations":63999,"utime":9.53,"etime":0.35,"rtime":11.62,"ops":6715.5,"usec":148.9,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":5,"size":32,"exp2":5,"generator":"array_size_fixnum","operation":"insert","iterations":42666,"utime":9.43,"etime":0.24,"rtime":10.85,"ops":4524.5,"usec":221.0,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":6,"size":64,"exp2":6,"generator":"array_size_fixnum","operation":"insert","iterations":26947,"utime":9.96,"etime":0.4,"rtime":10.76,"ops":2705.5,"usec":369.6,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":7,"size":128,"exp2":7,"generator":"array_size_fixnum","operation":"insert","iterations":15999,"utime":10.43,"etime":0.33,"rtime":11.28,"ops":1533.9,"usec":651.9,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":8,"size":256,"exp2":8,"generator":"array_size_fixnum","operation":"insert","iterations":7529,"utime":9.05,"etime":0.35,"rtime":11.08,"ops":831.9,"usec":1202.0,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":9,"size":512,"exp2":9,"generator":"array_size_fixnum","operation":"insert","iterations":3999,"utime":8.88,"etime":0.32,"rtime":9.52,"ops":450.3,"usec":2220.6,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":10,"size":1024,"exp2":10,"generator":"array_size_fixnum","operation":"insert","iterations":2133,"utime":9.24,"etime":0.3,"rtime":9.34,"ops":230.8,"usec":4331.9,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":11,"size":2048,"exp2":11,"generator":"array_size_fixnum","operation":"insert","iterations":1142,"utime":9.67,"etime":0.27,"rtime":9.7,"ops":118.1,"usec":8467.6,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":12,"size":4096,"exp2":12,"generator":"array_size_fixnum","operation":"insert","iterations":615,"utime":10.59,"etime":0.25,"rtime":11.02,"ops":58.1,"usec":17219.5,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":13,"size":8192,"exp2":13,"generator":"array_size_fixnum","operation":"insert","iterations":285,"utime":9.67,"etime":0.24,"rtime":9.68,"ops":29.5,"usec":33929.8,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":14,"size":16384,"exp2":14,"generator":"array_size_fixnum","operation":"insert","iterations":142,"utime":9.99,"etime":0.21,"rtime":10.05,"ops":14.2,"usec":70352.1,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":0,"size":1,"exp2":0,"generator":"hash_size_fixnum","operation":"insert","iterations":120470,"utime":9.77,"etime":0.39,"rtime":11.09,"ops":12330.6,"usec":81.1,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":1,"size":2,"exp2":1,"generator":"hash_size_fixnum","operation":"insert","iterations":113777,"utime":9.09,"etime":0.39,"rtime":12.37,"ops":12516.7,"usec":79.9,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":2,"size":4,"exp2":2,"generator":"hash_size_fixnum","operation":"insert","iterations":120470,"utime":9.72,"etime":0.37,"rtime":15.23,"ops":12394.0,"usec":80.7,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":3,"size":8,"exp2":3,"generator":"hash_size_fixnum","operation":"insert","iterations":127999,"utime":10.47,"etime":0.38,"rtime":15.19,"ops":12225.3,"usec":81.8,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":4,"size":16,"exp2":4,"generator":"hash_size_fixnum","operation":"insert","iterations":107789,"utime":9.55,"etime":0.41,"rtime":14.58,"ops":11286.8,"usec":88.6,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":5,"size":32,"exp2":5,"generator":"hash_size_fixnum","operation":"insert","iterations":102399,"utime":9.94,"etime":0.22,"rtime":21.32,"ops":10301.7,"usec":97.1,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":6,"size":64,"exp2":6,"generator":"hash_size_fixnum","operation":"insert","iterations":93090,"utime":9.72,"etime":7.32,"rtime":17.43,"ops":9577.2,"usec":104.4,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":7,"size":128,"exp2":7,"generator":"hash_size_fixnum","operation":"insert","iterations":78769,"utime":10.07,"etime":5.69,"rtime":20.3,"ops":7822.1,"usec":127.8,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":8,"size":256,"exp2":8,"generator":"hash_size_fixnum","operation":"insert","iterations":60235,"utime":10.42,"etime":7.43,"rtime":25.25,"ops":5780.7,"usec":173.0,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":9,"size":512,"exp2":9,"generator":"hash_size_fixnum","operation":"insert","iterations":36571,"utime":9.59,"etime":6.82,"rtime":20.1,"ops":3813.5,"usec":262.2,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":10,"size":1024,"exp2":10,"generator":"hash_size_fixnum","operation":"insert","iterations":21333,"utime":9.62,"etime":5.35,"rtime":20.61,"ops":2217.6,"usec":450.9,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":11,"size":2048,"exp2":11,"generator":"hash_size_fixnum","operation":"insert","iterations":11636,"utime":9.88,"etime":3.24,"rtime":11.71,"ops":1177.7,"usec":849.1,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":12,"size":4096,"exp2":12,"generator":"hash_size_fixnum","operation":"insert","iterations":6399,"utime":10.45,"etime":1.51,"rtime":12.59,"ops":612.3,"usec":1633.1,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":13,"size":8192,"exp2":13,"generator":"hash_size_fixnum","operation":"insert","iterations":2909,"utime":10.23,"etime":0.63,"rtime":12.68,"ops":284.4,"usec":3516.7,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":14,"size":16384,"exp2":14,"generator":"hash_size_fixnum","operation":"insert","iterations":1599,"utime":9.81,"etime":0.2,"rtime":19.81,"ops":163.0,"usec":6135.1,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":15,"size":32768,"exp2":15,"generator":"hash_size_fixnum","operation":"insert","iterations":727,"utime":10.13,"etime":0.24,"rtime":13.06,"ops":71.8,"usec":13934.0,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":16,"size":65536,"exp2":16,"generator":"hash_size_fixnum","operation":"insert","iterations":363,"utime":10.39,"etime":0.41,"rtime":12.07,"ops":34.9,"usec":28622.6,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":17,"size":131072,"exp2":17,"generator":"hash_size_fixnum","operation":"insert","iterations":166,"utime":9.92,"etime":0.36,"rtime":13.75,"ops":16.7,"usec":59759.0,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":0,"size":1,"exp2":0,"generator":"array_nest_fixnum","operation":"insert","iterations":136533,"utime":10.3,"etime":0.39,"rtime":12.28,"ops":13255.6,"usec":75.4,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":1,"size":2,"exp2":1,"generator":"array_nest_fixnum","operation":"insert","iterations":113777,"utime":9.92,"etime":0.41,"rtime":24.02,"ops":11469.5,"usec":87.2,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":2,"size":4,"exp2":2,"generator":"array_nest_fixnum","operation":"insert","iterations":93090,"utime":9.92,"etime":0.24,"rtime":18.27,"ops":9384.1,"usec":106.6,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":3,"size":8,"exp2":3,"generator":"array_nest_fixnum","operation":"insert","iterations":68266,"utime":9.9,"etime":0.33,"rtime":15.23,"ops":6895.6,"usec":145.0,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":4,"size":16,"exp2":4,"generator":"array_nest_fixnum","operation":"insert","iterations":39384,"utime":8.8,"etime":0.26,"rtime":13.5,"ops":4475.5,"usec":223.4,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":5,"size":32,"exp2":5,"generator":"array_nest_fixnum","operation":"insert","iterations":25599,"utime":9.55,"etime":0.2,"rtime":13.57,"ops":2680.5,"usec":373.1,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":6,"size":64,"exp2":6,"generator":"array_nest_fixnum","operation":"insert","iterations":13473,"utime":9.11,"etime":0.39,"rtime":10.1,"ops":1478.9,"usec":676.2,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":7,"size":128,"exp2":7,"generator":"array_nest_fixnum","operation":"insert","iterations":7999,"utime":10.88,"etime":0.33,"rtime":11.1,"ops":735.2,"usec":1360.2,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":8,"size":256,"exp2":8,"generator":"array_nest_fixnum","operation":"insert","iterations":3555,"utime":9.45,"etime":0.37,"rtime":9.64,"ops":376.2,"usec":2658.2,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":9,"size":512,"exp2":9,"generator":"array_nest_fixnum","operation":"insert","iterations":1777,"utime":8.96,"etime":0.35,"rtime":9.0,"ops":198.3,"usec":5042.2,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":10,"size":1024,"exp2":10,"generator":"array_nest_fixnum","operation":"insert","iterations":1000,"utime":10.02,"etime":0.31,"rtime":10.06,"ops":99.8,"usec":10020.0,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":11,"size":2048,"exp2":11,"generator":"array_nest_fixnum","operation":"insert","iterations":500,"utime":9.81,"etime":0.3,"rtime":9.84,"ops":51.0,"usec":19620.0,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":12,"size":4096,"exp2":12,"generator":"array_nest_fixnum","operation":"insert","iterations":266,"utime":10.23,"etime":0.28,"rtime":10.24,"ops":26.0,"usec":38458.6,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":4,"power":0,"size":1,"exp2":0,"generator":"array_nest_fixnum","operation":"insert","iterations":128000,"utime":9.79,"etime":0.36,"rtime":12.19,"ops":13074.6,"usec":76.5,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":4,"power":1,"size":4,"exp2":2,"generator":"array_nest_fixnum","operation":"insert","iterations":93090,"utime":9.44,"etime":0.24,"rtime":21.92,"ops":9861.2,"usec":101.4,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":4,"power":2,"size":16,"exp2":4,"generator":"array_nest_fixnum","operation":"insert","iterations":51199,"utime":9.5,"etime":0.75,"rtime":14.08,"ops":5389.4,"usec":185.6,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":4,"power":3,"size":64,"exp2":6,"generator":"array_nest_fixnum","operation":"insert","iterations":19692,"utime":9.92,"etime":0.26,"rtime":12.12,"ops":1985.1,"usec":503.8,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":4,"power":4,"size":256,"exp2":8,"generator":"array_nest_fixnum","operation":"insert","iterations":5333,"utime":9.2,"etime":0.23,"rtime":10.05,"ops":579.7,"usec":1725.1,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":4,"power":5,"size":1024,"exp2":10,"generator":"array_nest_fixnum","operation":"insert","iterations":1333,"utime":9.2,"etime":0.24,"rtime":9.45,"ops":144.9,"usec":6901.7,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":4,"power":6,"size":4096,"exp2":12,"generator":"array_nest_fixnum","operation":"insert","iterations":380,"utime":10.25,"etime":0.41,"rtime":10.27,"ops":37.1,"usec":26973.7,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":8,"power":0,"size":1,"exp2":0,"generator":"array_nest_fixnum","operation":"insert","iterations":136533,"utime":10.39,"etime":0.35,"rtime":18.67,"ops":13140.8,"usec":76.1,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":8,"power":1,"size":8,"exp2":3,"generator":"array_nest_fixnum","operation":"insert","iterations":78769,"utime":9.55,"etime":0.27,"rtime":16.66,"ops":8248.1,"usec":121.2,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":8,"power":2,"size":64,"exp2":6,"generator":"array_nest_fixnum","operation":"insert","iterations":23272,"utime":10.43,"etime":0.23,"rtime":15.22,"ops":2231.3,"usec":448.2,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":8,"power":3,"size":512,"exp2":9,"generator":"array_nest_fixnum","operation":"insert","iterations":3199,"utime":9.25,"etime":0.19,"rtime":11.6,"ops":345.8,"usec":2891.5,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":8,"power":4,"size":4096,"exp2":12,"generator":"array_nest_fixnum","operation":"insert","iterations":470,"utime":10.4,"etime":0.33,"rtime":10.69,"ops":45.2,"usec":22127.7,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":16,"power":0,"size":1,"exp2":0,"generator":"array_nest_fixnum","operation":"insert","iterations":136533,"utime":10.51,"etime":0.35,"rtime":13.18,"ops":12990.8,"usec":77.0,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":16,"power":1,"size":16,"exp2":4,"generator":"array_nest_fixnum","operation":"insert","iterations":60235,"utime":9.99,"etime":0.37,"rtime":18.24,"ops":6029.5,"usec":165.9,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":16,"power":2,"size":256,"exp2":8,"generator":"array_nest_fixnum","operation":"insert","iterations":7529,"utime":10.31,"etime":0.33,"rtime":14.33,"ops":730.3,"usec":1369.4,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":16,"power":3,"size":4096,"exp2":12,"generator":"array_nest_fixnum","operation":"insert","iterations":421,"utime":9.0,"etime":0.33,"rtime":10.85,"ops":46.8,"usec":21377.7,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":32,"power":0,"size":1,"exp2":0,"generator":"array_nest_fixnum","operation":"insert","iterations":128000,"utime":9.69,"etime":0.36,"rtime":11.61,"ops":13209.5,"usec":75.7,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":32,"power":1,"size":32,"exp2":5,"generator":"array_nest_fixnum","operation":"insert","iterations":39384,"utime":9.4,"etime":0.27,"rtime":17.62,"ops":4189.8,"usec":238.7,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":32,"power":2,"size":1024,"exp2":10,"generator":"array_nest_fixnum","operation":"insert","iterations":1777,"utime":8.88,"etime":0.36,"rtime":10.87,"ops":200.1,"usec":4997.2,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":0,"size":1,"exp2":0,"generator":"hash_nest_fixnum","operation":"insert","iterations":128000,"utime":9.9,"etime":0.36,"rtime":12.08,"ops":12929.3,"usec":77.3,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":1,"size":2,"exp2":1,"generator":"hash_nest_fixnum","operation":"insert","iterations":136533,"utime":10.38,"etime":0.36,"rtime":21.6,"ops":13153.5,"usec":76.0,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":2,"size":4,"exp2":2,"generator":"hash_nest_fixnum","operation":"insert","iterations":127999,"utime":9.99,"etime":0.36,"rtime":24.92,"ops":12812.7,"usec":78.0,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":3,"size":8,"exp2":3,"generator":"hash_nest_fixnum","operation":"insert","iterations":120470,"utime":9.92,"etime":0.38,"rtime":30.06,"ops":12144.2,"usec":82.3,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":4,"size":16,"exp2":4,"generator":"hash_nest_fixnum","operation":"insert","iterations":107789,"utime":9.82,"etime":5.93,"rtime":14.32,"ops":10976.5,"usec":91.1,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":5,"size":32,"exp2":5,"generator":"hash_nest_fixnum","operation":"insert","iterations":93090,"utime":9.93,"etime":7.79,"rtime":17.88,"ops":9374.6,"usec":106.7,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":6,"size":64,"exp2":6,"generator":"hash_nest_fixnum","operation":"insert","iterations":73142,"utime":10.23,"etime":8.2,"rtime":22.14,"ops":7149.8,"usec":139.9,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":7,"size":128,"exp2":7,"generator":"hash_nest_fixnum","operation":"insert","iterations":51199,"utime":10.22,"etime":9.57,"rtime":34.86,"ops":5009.7,"usec":199.6,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":8,"size":256,"exp2":8,"generator":"hash_nest_fixnum","operation":"insert","iterations":31999,"utime":10.13,"etime":7.4,"rtime":16.68,"ops":3158.8,"usec":316.6,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":9,"size":512,"exp2":9,"generator":"hash_nest_fixnum","operation":"insert","iterations":18285,"utime":10.07,"etime":4.45,"rtime":20.62,"ops":1815.8,"usec":550.7,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":10,"size":1024,"exp2":10,"generator":"hash_nest_fixnum","operation":"insert","iterations":10666,"utime":10.55,"etime":3.87,"rtime":13.44,"ops":1011.0,"usec":989.1,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":11,"size":2048,"exp2":11,"generator":"hash_nest_fixnum","operation":"insert","iterations":5333,"utime":10.09,"etime":1.07,"rtime":13.05,"ops":528.5,"usec":1892.0,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":12,"size":4096,"exp2":12,"generator":"hash_nest_fixnum","operation":"insert","iterations":2666,"utime":10.02,"etime":0.82,"rtime":12.27,"ops":266.1,"usec":3758.4,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":13,"size":8192,"exp2":13,"generator":"hash_nest_fixnum","operation":"insert","iterations":1230,"utime":9.93,"etime":0.25,"rtime":11.44,"ops":123.9,"usec":8073.2,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":14,"size":16384,"exp2":14,"generator":"hash_nest_fixnum","operation":"insert","iterations":499,"utime":9.59,"etime":0.31,"rtime":10.98,"ops":52.0,"usec":19218.4,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":15,"size":32768,"exp2":15,"generator":"hash_nest_fixnum","operation":"insert","iterations":249,"utime":9.55,"etime":0.29,"rtime":10.47,"ops":26.1,"usec":38353.4,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":4,"power":0,"size":1,"exp2":0,"generator":"hash_nest_fixnum","operation":"insert","iterations":136533,"utime":10.27,"etime":0.38,"rtime":17.7,"ops":13294.4,"usec":75.2,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":4,"power":1,"size":4,"exp2":2,"generator":"hash_nest_fixnum","operation":"insert","iterations":120470,"utime":9.49,"etime":0.79,"rtime":25.97,"ops":12694.4,"usec":78.8,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":4,"power":2,"size":16,"exp2":4,"generator":"hash_nest_fixnum","operation":"insert","iterations":120470,"utime":9.92,"etime":0.64,"rtime":26.5,"ops":12144.2,"usec":82.3,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":4,"power":3,"size":64,"exp2":6,"generator":"hash_nest_fixnum","operation":"insert","iterations":85333,"utime":9.45,"etime":11.76,"rtime":25.7,"ops":9029.9,"usec":110.7,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":4,"power":4,"size":256,"exp2":8,"generator":"hash_nest_fixnum","operation":"insert","iterations":48761,"utime":9.82,"etime":11.6,"rtime":17.53,"ops":4965.5,"usec":201.4,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":4,"power":5,"size":1024,"exp2":10,"generator":"hash_nest_fixnum","operation":"insert","iterations":17066,"utime":9.55,"etime":6.64,"rtime":23.01,"ops":1787.0,"usec":559.6,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":4,"power":6,"size":4096,"exp2":12,"generator":"hash_nest_fixnum","operation":"insert","iterations":5333,"utime":10.1,"etime":2.21,"rtime":12.69,"ops":528.0,"usec":1893.9,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":4,"power":7,"size":16384,"exp2":14,"generator":"hash_nest_fixnum","operation":"insert","iterations":1230,"utime":9.83,"etime":0.84,"rtime":11.03,"ops":125.1,"usec":7991.9,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":4,"power":8,"size":65536,"exp2":16,"generator":"hash_nest_fixnum","operation":"insert","iterations":166,"utime":8.33,"etime":0.18,"rtime":9.12,"ops":19.9,"usec":50180.7,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":8,"power":0,"size":1,"exp2":0,"generator":"hash_nest_fixnum","operation":"insert","iterations":136533,"utime":10.25,"etime":0.37,"rtime":19.26,"ops":13320.3,"usec":75.1,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":8,"power":1,"size":8,"exp2":3,"generator":"hash_nest_fixnum","operation":"insert","iterations":128000,"utime":10.02,"etime":0.38,"rtime":43.71,"ops":12774.5,"usec":78.3,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":8,"power":2,"size":64,"exp2":6,"generator":"hash_nest_fixnum","operation":"insert","iterations":97523,"utime":10.1,"etime":20.96,"rtime":25.18,"ops":9655.7,"usec":103.6,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":8,"power":3,"size":512,"exp2":9,"generator":"hash_nest_fixnum","operation":"insert","iterations":36571,"utime":9.48,"etime":13.03,"rtime":25.38,"ops":3857.7,"usec":259.2,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":8,"power":4,"size":4096,"exp2":12,"generator":"hash_nest_fixnum","operation":"insert","iterations":7529,"utime":10.79,"etime":11.4,"rtime":13.45,"ops":697.8,"usec":1433.1,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":16,"power":0,"size":1,"exp2":0,"generator":"hash_nest_fixnum","operation":"insert","iterations":128000,"utime":9.79,"etime":0.36,"rtime":21.73,"ops":13074.6,"usec":76.5,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":16,"power":1,"size":16,"exp2":4,"generator":"hash_nest_fixnum","operation":"insert","iterations":127999,"utime":10.47,"etime":1.69,"rtime":52.42,"ops":12225.3,"usec":81.8,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":16,"power":2,"size":256,"exp2":8,"generator":"hash_nest_fixnum","operation":"insert","iterations":60235,"utime":9.67,"etime":26.36,"rtime":16.29,"ops":6229.1,"usec":160.5,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":16,"power":3,"size":4096,"exp2":12,"generator":"hash_nest_fixnum","operation":"insert","iterations":7529,"utime":10.01,"etime":8.18,"rtime":23.99,"ops":752.1,"usec":1329.5,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":16,"power":4,"size":65536,"exp2":16,"generator":"hash_nest_fixnum","operation":"insert","iterations":333,"utime":8.99,"etime":1.14,"rtime":11.03,"ops":37.0,"usec":26997.0,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":32,"power":0,"size":1,"exp2":0,"generator":"hash_nest_fixnum","operation":"insert","iterations":136533,"utime":10.45,"etime":0.37,"rtime":18.3,"ops":13065.4,"usec":76.5,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":32,"power":1,"size":32,"exp2":5,"generator":"hash_nest_fixnum","operation":"insert","iterations":120470,"utime":10.4,"etime":19.68,"rtime":42.36,"ops":11583.7,"usec":86.3,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":32,"power":2,"size":1024,"exp2":10,"generator":"hash_nest_fixnum","operation":"insert","iterations":25599,"utime":9.76,"etime":27.91,"rtime":14.23,"ops":2622.8,"usec":381.3,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":32,"power":3,"size":32768,"exp2":15,"generator":"hash_nest_fixnum","operation":"insert","iterations":1000,"utime":10.15,"etime":3.15,"rtime":11.51,"ops":98.5,"usec":10150.0,"mongo_driver_mode":"c","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":0,"size":1,"exp2":0,"generator":"value_string_size","operation":"insert","iterations":85333,"utime":9.83,"etime":0.27,"rtime":10.63,"ops":8680.9,"usec":115.2,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":1,"size":2,"exp2":1,"generator":"value_string_size","operation":"insert","iterations":85333,"utime":9.87,"etime":0.27,"rtime":10.71,"ops":8645.7,"usec":115.7,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":2,"size":4,"exp2":2,"generator":"value_string_size","operation":"insert","iterations":85333,"utime":9.88,"etime":0.26,"rtime":10.76,"ops":8636.9,"usec":115.8,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":3,"size":8,"exp2":3,"generator":"value_string_size","operation":"insert","iterations":85333,"utime":10.02,"etime":0.27,"rtime":10.89,"ops":8516.3,"usec":117.4,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":4,"size":16,"exp2":4,"generator":"value_string_size","operation":"insert","iterations":85333,"utime":10.08,"etime":0.26,"rtime":11.0,"ops":8465.6,"usec":118.1,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":5,"size":32,"exp2":5,"generator":"value_string_size","operation":"insert","iterations":85333,"utime":10.1,"etime":0.27,"rtime":11.11,"ops":8448.8,"usec":118.4,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":6,"size":64,"exp2":6,"generator":"value_string_size","operation":"insert","iterations":85333,"utime":10.36,"etime":0.27,"rtime":11.59,"ops":8236.8,"usec":121.4,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":7,"size":128,"exp2":7,"generator":"value_string_size","operation":"insert","iterations":85333,"utime":10.53,"etime":0.28,"rtime":12.15,"ops":8103.8,"usec":123.4,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":8,"size":256,"exp2":8,"generator":"value_string_size","operation":"insert","iterations":78769,"utime":10.2,"etime":0.29,"rtime":12.04,"ops":7722.5,"usec":129.5,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":9,"size":512,"exp2":9,"generator":"value_string_size","operation":"insert","iterations":68266,"utime":9.36,"etime":1.7,"rtime":10.16,"ops":7293.4,"usec":137.1,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":10,"size":1024,"exp2":10,"generator":"value_string_size","operation":"insert","iterations":64000,"utime":9.68,"etime":1.74,"rtime":10.48,"ops":6611.6,"usec":151.3,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":11,"size":2048,"exp2":11,"generator":"value_string_size","operation":"insert","iterations":53894,"utime":10.39,"etime":3.25,"rtime":11.2,"ops":5187.1,"usec":192.8,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":12,"size":4096,"exp2":12,"generator":"value_string_size","operation":"insert","iterations":39384,"utime":10.1,"etime":1.98,"rtime":11.09,"ops":3899.4,"usec":256.4,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":13,"size":8192,"exp2":13,"generator":"value_string_size","operation":"insert","iterations":25600,"utime":9.98,"etime":3.13,"rtime":10.69,"ops":2565.1,"usec":389.8,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":14,"size":16384,"exp2":14,"generator":"value_string_size","operation":"insert","iterations":16000,"utime":10.54,"etime":1.56,"rtime":11.93,"ops":1518.0,"usec":658.8,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":15,"size":32768,"exp2":15,"generator":"value_string_size","operation":"insert","iterations":9142,"utime":10.69,"etime":1.73,"rtime":12.06,"ops":855.2,"usec":1169.3,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":0,"size":1,"exp2":0,"generator":"key_string_size","operation":"insert","iterations":85333,"utime":9.8,"etime":0.26,"rtime":10.7,"ops":8707.4,"usec":114.8,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":1,"size":2,"exp2":1,"generator":"key_string_size","operation":"insert","iterations":93090,"utime":10.8,"etime":0.25,"rtime":11.75,"ops":8619.4,"usec":116.0,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":2,"size":4,"exp2":2,"generator":"key_string_size","operation":"insert","iterations":78769,"utime":9.2,"etime":0.27,"rtime":10.55,"ops":8561.8,"usec":116.8,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":3,"size":8,"exp2":3,"generator":"key_string_size","operation":"insert","iterations":85333,"utime":9.96,"etime":0.27,"rtime":11.2,"ops":8567.6,"usec":116.7,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":4,"size":16,"exp2":4,"generator":"key_string_size","operation":"insert","iterations":78769,"utime":9.35,"etime":0.27,"rtime":10.45,"ops":8424.5,"usec":118.7,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":5,"size":32,"exp2":5,"generator":"key_string_size","operation":"insert","iterations":78769,"utime":9.33,"etime":0.27,"rtime":10.36,"ops":8442.6,"usec":118.4,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":6,"size":64,"exp2":6,"generator":"key_string_size","operation":"insert","iterations":78769,"utime":9.34,"etime":0.28,"rtime":10.42,"ops":8433.5,"usec":118.6,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":7,"size":128,"exp2":7,"generator":"key_string_size","operation":"insert","iterations":78769,"utime":9.61,"etime":0.28,"rtime":11.12,"ops":8196.6,"usec":122.0,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":8,"size":256,"exp2":8,"generator":"key_string_size","operation":"insert","iterations":78769,"utime":10.14,"etime":0.29,"rtime":12.6,"ops":7768.1,"usec":128.7,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":9,"size":512,"exp2":9,"generator":"key_string_size","operation":"insert","iterations":73142,"utime":10.16,"etime":2.17,"rtime":10.94,"ops":7199.0,"usec":138.9,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":10,"size":1024,"exp2":10,"generator":"key_string_size","operation":"insert","iterations":63999,"utime":10.13,"etime":2.37,"rtime":11.63,"ops":6317.8,"usec":158.3,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":11,"size":2048,"exp2":11,"generator":"key_string_size","operation":"insert","iterations":51199,"utime":9.98,"etime":2.65,"rtime":11.92,"ops":5130.2,"usec":194.9,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":12,"size":4096,"exp2":12,"generator":"key_string_size","operation":"insert","iterations":39384,"utime":10.2,"etime":2.88,"rtime":12.38,"ops":3861.2,"usec":259.0,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":13,"size":8192,"exp2":13,"generator":"key_string_size","operation":"insert","iterations":23272,"utime":9.55,"etime":2.76,"rtime":10.93,"ops":2436.9,"usec":410.4,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":14,"size":16384,"exp2":14,"generator":"key_string_size","operation":"insert","iterations":13473,"utime":9.67,"etime":1.95,"rtime":16.18,"ops":1393.3,"usec":717.7,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":15,"size":32768,"exp2":15,"generator":"key_string_size","operation":"insert","iterations":7999,"utime":10.01,"etime":1.46,"rtime":11.22,"ops":799.1,"usec":1251.4,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":0,"size":1,"exp2":0,"generator":"array_size_fixnum","operation":"insert","iterations":64000,"utime":9.35,"etime":0.34,"rtime":10.05,"ops":6844.9,"usec":146.1,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":1,"size":2,"exp2":1,"generator":"array_size_fixnum","operation":"insert","iterations":60235,"utime":9.67,"etime":0.36,"rtime":10.32,"ops":6229.1,"usec":160.5,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":2,"size":4,"exp2":2,"generator":"array_size_fixnum","operation":"insert","iterations":53894,"utime":10.37,"etime":0.42,"rtime":10.94,"ops":5197.1,"usec":192.4,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":3,"size":8,"exp2":3,"generator":"array_size_fixnum","operation":"insert","iterations":39384,"utime":10.11,"etime":0.27,"rtime":10.54,"ops":3895.5,"usec":256.7,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":4,"size":16,"exp2":4,"generator":"array_size_fixnum","operation":"insert","iterations":25599,"utime":9.94,"etime":0.4,"rtime":10.23,"ops":2575.4,"usec":388.3,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":5,"size":32,"exp2":5,"generator":"array_size_fixnum","operation":"insert","iterations":15999,"utime":10.21,"etime":0.32,"rtime":10.41,"ops":1567.0,"usec":638.2,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":6,"size":64,"exp2":6,"generator":"array_size_fixnum","operation":"insert","iterations":8533,"utime":9.6,"etime":0.31,"rtime":9.71,"ops":888.9,"usec":1125.0,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":7,"size":128,"exp2":7,"generator":"array_size_fixnum","operation":"insert","iterations":4266,"utime":8.99,"etime":0.3,"rtime":9.06,"ops":474.5,"usec":2107.4,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":8,"size":256,"exp2":8,"generator":"array_size_fixnum","operation":"insert","iterations":2285,"utime":9.46,"etime":0.29,"rtime":9.49,"ops":241.5,"usec":4140.0,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":9,"size":512,"exp2":9,"generator":"array_size_fixnum","operation":"insert","iterations":1230,"utime":10.17,"etime":0.26,"rtime":10.2,"ops":120.9,"usec":8268.3,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":10,"size":1024,"exp2":10,"generator":"array_size_fixnum","operation":"insert","iterations":615,"utime":9.86,"etime":0.25,"rtime":9.87,"ops":62.4,"usec":16032.5,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":11,"size":2048,"exp2":11,"generator":"array_size_fixnum","operation":"insert","iterations":333,"utime":10.81,"etime":0.23,"rtime":10.82,"ops":30.8,"usec":32462.5,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":12,"size":4096,"exp2":12,"generator":"array_size_fixnum","operation":"insert","iterations":153,"utime":9.95,"etime":0.2,"rtime":9.98,"ops":15.4,"usec":65032.7,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":13,"size":8192,"exp2":13,"generator":"array_size_fixnum","operation":"insert","iterations":76,"utime":10.1,"etime":0.13,"rtime":10.13,"ops":7.5,"usec":132894.7,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":14,"size":16384,"exp2":14,"generator":"array_size_fixnum","operation":"insert","iterations":37,"utime":10.22,"etime":0.27,"rtime":10.27,"ops":3.6,"usec":276216.2,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":0,"size":1,"exp2":0,"generator":"hash_size_fixnum","operation":"insert","iterations":63999,"utime":8.9,"etime":0.33,"rtime":9.55,"ops":7190.9,"usec":139.1,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":1,"size":2,"exp2":1,"generator":"hash_size_fixnum","operation":"insert","iterations":64000,"utime":9.87,"etime":0.34,"rtime":10.49,"ops":6484.3,"usec":154.2,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":2,"size":4,"exp2":2,"generator":"hash_size_fixnum","operation":"insert","iterations":53894,"utime":10.25,"etime":0.4,"rtime":10.82,"ops":5258.0,"usec":190.2,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":3,"size":8,"exp2":3,"generator":"hash_size_fixnum","operation":"insert","iterations":36571,"utime":9.26,"etime":0.29,"rtime":9.66,"ops":3949.4,"usec":253.2,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":4,"size":16,"exp2":4,"generator":"hash_size_fixnum","operation":"insert","iterations":25599,"utime":9.77,"etime":0.21,"rtime":10.07,"ops":2620.2,"usec":381.7,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":5,"size":32,"exp2":5,"generator":"hash_size_fixnum","operation":"insert","iterations":17066,"utime":10.68,"etime":0.32,"rtime":10.89,"ops":1597.9,"usec":625.8,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":6,"size":64,"exp2":6,"generator":"hash_size_fixnum","operation":"insert","iterations":9142,"utime":10.11,"etime":0.3,"rtime":10.21,"ops":904.3,"usec":1105.9,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":7,"size":128,"exp2":7,"generator":"hash_size_fixnum","operation":"insert","iterations":4923,"utime":10.1,"etime":0.26,"rtime":10.16,"ops":487.4,"usec":2051.6,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":8,"size":256,"exp2":8,"generator":"hash_size_fixnum","operation":"insert","iterations":2461,"utime":9.75,"etime":0.27,"rtime":9.78,"ops":252.4,"usec":3961.8,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":9,"size":512,"exp2":9,"generator":"hash_size_fixnum","operation":"insert","iterations":1333,"utime":10.34,"etime":0.24,"rtime":10.36,"ops":128.9,"usec":7756.9,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":10,"size":1024,"exp2":10,"generator":"hash_size_fixnum","operation":"insert","iterations":666,"utime":10.33,"etime":0.23,"rtime":10.34,"ops":64.5,"usec":15510.5,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":11,"size":2048,"exp2":11,"generator":"hash_size_fixnum","operation":"insert","iterations":333,"utime":10.73,"etime":0.22,"rtime":10.74,"ops":31.0,"usec":32222.2,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":12,"size":4096,"exp2":12,"generator":"hash_size_fixnum","operation":"insert","iterations":153,"utime":9.97,"etime":0.19,"rtime":10.0,"ops":15.3,"usec":65163.4,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":13,"size":8192,"exp2":13,"generator":"hash_size_fixnum","operation":"insert","iterations":71,"utime":9.9,"etime":0.14,"rtime":9.93,"ops":7.2,"usec":139436.6,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":14,"size":16384,"exp2":14,"generator":"hash_size_fixnum","operation":"insert","iterations":41,"utime":9.93,"etime":0.24,"rtime":9.98,"ops":4.1,"usec":242195.1,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":15,"size":32768,"exp2":15,"generator":"hash_size_fixnum","operation":"insert","iterations":19,"utime":10.02,"etime":0.52,"rtime":10.07,"ops":1.9,"usec":527368.4,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":16,"size":65536,"exp2":16,"generator":"hash_size_fixnum","operation":"insert","iterations":9,"utime":9.21,"etime":1.02,"rtime":9.28,"ops":1.0,"usec":1023333.3,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":17,"size":131072,"exp2":17,"generator":"hash_size_fixnum","operation":"insert","iterations":4,"utime":8.06,"etime":2.03,"rtime":8.11,"ops":0.5,"usec":2015000.0,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":0,"size":1,"exp2":0,"generator":"array_nest_fixnum","operation":"insert","iterations":93090,"utime":10.14,"etime":0.24,"rtime":11.15,"ops":9180.5,"usec":108.9,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":1,"size":2,"exp2":1,"generator":"array_nest_fixnum","operation":"insert","iterations":68266,"utime":10.3,"etime":0.33,"rtime":11.77,"ops":6627.8,"usec":150.9,"mongo_driver_mode":"ruby","hostname":"osprey","osname":"Darwin"},
+{"base":2,"power":2,"size":4,"exp2":2,"generator":"array_nest_fixnum","operation":"insert","iterations":39384,"utime":9.32,"etime":0.25,"rtime<