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
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
using System;
using System.IO;
using System.Runtime.CompilerServices;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Json;
using System.Text;
using Newtonsoft.Json.Bson;
using Microsoft.Xunit.Performance;
[assembly: OptimizeForBenchmarks]
[assembly: MeasureInstructionsRetired]
namespace Serialization
{
public class JsonBenchmarks
{
#if DEBUG
public const int Iterations = 1;
public const int JsonNetIterations = 1;
#else
public const int Iterations = 30000;
public const int JsonNetIterations = 90000;
#endif
const string DataContractXml = @"<JsonBenchmarks.TestObject xmlns=""http://schemas.datacontract.org/2004/07/Serialization"" xmlns:i=""http://www.w3.org/2001/XMLSchema-instance""><Id>33</Id><Name>SqMtx</Name><Results xmlns:a=""http://schemas.microsoft.com/2003/10/Serialization/Arrays""><a:double>101.3</a:double><a:double>99.8</a:double><a:double>99.6</a:double><a:double>100.4</a:double></Results><WhenRun>2015-01-01T00:00:00-08:00</WhenRun></JsonBenchmarks.TestObject>";
const string DataContractJson = @"{""Id"":33,""Name"":""SqMtx"",""Results"":[101.3,99.8,99.6,100.4],""WhenRun"":""\/Date(1420099200000-0800)\/""}";
const string JsonNetJson = @"{""Id"":33,""Name"":""SqMtx"",""Results"":[101.3,99.8,99.6,100.4],""WhenRun"":""2015-01-01T00:00:00-08:00""}";
byte[] JsonNetBinary = new byte[] { 0x68, 0x00, 0x00, 0x00, 0x10, 0x49, 0x64, 0x00, 0x21, 0x00, 0x00, 0x00, 0x02, 0x4E, 0x61, 0x6D, 0x65, 0x00, 0x06, 0x00, 0x00, 0x00, 0x53, 0x71, 0x4D, 0x74, 0x78, 0x00, 0x04, 0x52, 0x65, 0x73, 0x75, 0x6C, 0x74, 0x73, 0x00, 0x31, 0x00, 0x00, 0x00, 0x01, 0x30, 0x00, 0x33, 0x33, 0x33, 0x33, 0x33, 0x53, 0x59, 0x40, 0x01, 0x31, 0x00, 0x33, 0x33, 0x33, 0x33, 0x33, 0xF3, 0x58, 0x40, 0x01, 0x32, 0x00, 0x66, 0x66, 0x66, 0x66, 0x66, 0xE6, 0x58, 0x40, 0x01, 0x33, 0x00, 0x9A, 0x99, 0x99, 0x99, 0x99, 0x19, 0x59, 0x40, 0x00, 0x09, 0x57, 0x68, 0x65, 0x6E, 0x52, 0x75, 0x6E, 0x00, 0x00, 0x24, 0x82, 0xA4, 0x4A, 0x01, 0x00, 0x00, 0x00 };
static volatile object VolatileObject;
[MethodImpl(MethodImplOptions.NoInlining)]
static void Escape(object obj) {
VolatileObject = obj;
}
[DataContract]
public class TestObject
{
[DataMember]
public int Id { get; set; }
[DataMember]
public string Name { get; set; }
[DataMember]
public double[] Results { get; set; }
[DataMember]
public DateTime WhenRun { get; set; }
public static TestObject Expected()
{
TestObject t = new TestObject();
t.Id = 33;
t.Name = "SqMtx";
t.Results = new double[] { 101.3, 99.8, 99.6, 100.4 };
t.WhenRun = DateTime.Parse("Jan 1, 2015 8:00 GMT");
return t;
}
}
private bool Deserialize()
{
bool result = true;
DeserializeObject();
return result;
}
private void DeserializeObject()
{
DeserializeDataContractBench();
DeserializeDataContractJsonBench();
DeserializeJsonNetBinaryBench();
DeserializeJsonNetBench();
}
[Benchmark]
private void DeserializeDataContract()
{
foreach (var iteration in Benchmark.Iterations) {
using (iteration.StartMeasurement()) {
DeserializeDataContractBench();
}
}
}
private void DeserializeDataContractBench() {
DataContractSerializer ds = new DataContractSerializer(typeof(TestObject));
MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(DataContractXml));
DeserializeDataContractBenchInner(ds, ms);
}
private void DeserializeDataContractBenchInner(DataContractSerializer ds, MemoryStream ms)
{
TestObject t;
for (int i = 0; i < Iterations; i++)
{
t = (TestObject)ds.ReadObject(ms);
Escape(t.Name);
ms.Seek(0, SeekOrigin.Begin);
}
}
[Benchmark]
private void DeserializeDataContractJson()
{
foreach (var iteration in Benchmark.Iterations) {
using (iteration.StartMeasurement()) {
DeserializeDataContractJsonBench();
}
}
}
private void DeserializeDataContractJsonBench()
{
DataContractJsonSerializer ds = new DataContractJsonSerializer(typeof(TestObject));
MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(DataContractJson));
DeserializeDataContractJsonBenchInner(ds, ms);
}
private void DeserializeDataContractJsonBenchInner(DataContractJsonSerializer ds, MemoryStream ms)
{
TestObject t;
for (int i = 0; i < Iterations; i++)
{
t = (TestObject) ds.ReadObject(ms);
Escape(t.Name);
ms.Seek(0, SeekOrigin.Begin);
}
}
[Benchmark]
private void DeserializeJsonNetBinary()
{
foreach (var iteration in Benchmark.Iterations) {
using (iteration.StartMeasurement()) {
DeserializeJsonNetBinaryBench();
}
}
}
private void DeserializeJsonNetBinaryBench()
{
DeserializeJsonNetBinaryBenchInner();
}
private void DeserializeJsonNetBinaryBenchInner()
{
Newtonsoft.Json.JsonSerializer ds = new Newtonsoft.Json.JsonSerializer();
TestObject t;
Type ty = typeof(TestObject);
for (int i = 0; i < JsonNetIterations; i++)
{
BsonReader br = new BsonReader(new MemoryStream(JsonNetBinary));
t = (TestObject) ds.Deserialize(br, ty);
Escape(t.Name);
}
}
[Benchmark]
private void DeserializeJsonNet()
{
foreach (var iteration in Benchmark.Iterations) {
using (iteration.StartMeasurement()) {
DeserializeJsonNetBench();
}
}
}
private void DeserializeJsonNetBench()
{
DeserializeJsonNetBenchInner();
}
private void DeserializeJsonNetBenchInner()
{
Newtonsoft.Json.JsonSerializer ds = new Newtonsoft.Json.JsonSerializer();
TestObject t;
Type ty = typeof(TestObject);
for (int i = 0; i < JsonNetIterations; i++)
{
StringReader sr = new StringReader(JsonNetJson);
t = (TestObject)ds.Deserialize(sr, ty);
Escape(t.Name);
}
}
public static int Main() {
var tests = new JsonBenchmarks();
bool result = tests.Deserialize();
return result ? 100 : -1;
}
}
}
|
