1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
'use strict';
Error.stackTraceLimit = Infinity;const out = process.argv.length < 3;function log() {  if (out) {    console.error.apply(console, arguments);  }}
const mongoose = require('../');const Schema = mongoose.Schema;
const DocSchema = new Schema({  title: String});
const AllSchema = new Schema({  string: String,  number: Number,  date: Date,  bool: Boolean,  buffer: Buffer,  objectid: Schema.ObjectId,  array: Array,  strings: [String],  numbers: [Number],  dates: [Date],  bools: [Boolean],  buffers: [Buffer],  objectids: [Schema.ObjectId],  docs: [DocSchema]});
const A = mongoose.model('A', AllSchema);
let numdocs = 0;let totaltime = 0;
// bench the normal way// the try building the doc into the document prototype// and using inheritance and bench that//// also, bench using listeners for each subdoc vs one// listener that knows about all subdocs and notifies// them.
function run(label, fn) {  log('running %s', label);  let started = process.memoryUsage();  let start = new Date;  let total = 10000;  let i = total;  let a;  while (i--) {    a = fn();    if (i % 2) {      a.toObject({ depopulate: true });    } else {      if (a._delta) {        a._delta();      } else {        a.$__delta();      }    }  }  let time = (new Date - start) / 1000;  totaltime += time;  numdocs += total;  log(label + ' took %d seconds for %d docs (%d dps)', time, total, total / time);  let used = process.memoryUsage();  let res = {};  res.rss = used.rss - started.rss;  res.heapTotal = used.heapTotal - started.heapTotal;  res.heapUsed = used.heapUsed - started.heapUsed;  log('change: ', res);  a = res = used = time = started = start = total = i = null;}
run('string', function() {  return new A({    string: 'hello world'  });});run('number', function() {  return new A({    number: 444848484  });});run('date', function() {  return new A({    date: new Date  });});run('bool', function() {  return new A({    bool: true  });});run('buffer', function() {  return new A({    buffer: Buffer.alloc(0)  });});run('objectid', function() {  return new A({    objectid: new mongoose.Types.ObjectId()  });});run('array of mixed', function() {  return new A({    array: [4, {}, [], 'asdfa']  });});run('array of strings', function() {  return new A({    strings: ['one', 'two', 'three', 'four']  });});run('array of numbers', function() {  return new A({    numbers: [72, 6493, 83984643, 348282.55]  });});run('array of dates', function() {  return new A({    dates: [new Date, new Date, new Date]  });});run('array of bools', function() {  return new A({    bools: [true, false, false, true, true]  });});run('array of buffers', function() {  return new A({    buffers: [Buffer.from([33]), Buffer.from([12])]  });});run('array of objectids', function() {  return new A({    objectids: [new mongoose.Types.ObjectId]  });});run('array of docs', function() {  return new A({    docs: [{ title: 'yo' }, { title: 'nowafasdi0fas asjkdfla fa' }]  });});
console.error('completed %d docs in %d seconds (%d dps)', numdocs, totaltime, numdocs / totaltime);