一个关于Golang msgpack 和 json 性能的简单比较:
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
package main
import (
"fmt"
"time"
"encoding/json"
"gopkg.in/vmihailenco/msgpack.v2"
)
type ts struct {
C string
K string
T int
Max int
Cn string
}
func main() {
var in = &ts{
C: "LOCK",
K: "31uEbMgunupShBVTewXjtqbBv5MndwfXhb",
T: 1000,
Max: 200,
Cn: "中文",
}
ExampleMsgpack(in)
ExampleJson(in)
}
func ExampleJson(in *ts) {
t1 := time.Now()
for i := 0; i < 100000; i++ {
// encode
b, _ := json.Marshal(in)
// decode
var out = ts{}
_ = json.Unmarshal(b, &out)
}
t2 := time.Now()
fmt.Println("Json 消耗时间:", t2.Sub(t1), "秒")
}
func ExampleMsgpack(in *ts) {
t1 := time.Now()
for i := 0; i < 100000; i++ {
// encode
b, _ := msgpack.Marshal(in)
// decode
var out = ts{}
_ = msgpack.Unmarshal(b, &out)
}
t2 := time.Now()
fmt.Println("msgpack 消耗时间:", t2.Sub(t1), "秒")
}
输出:
1
2
msgpack 消耗时间: 409.721398ms 秒
Json 消耗时间: 446.545891ms 秒
相差不大,把 string 字段加长
1
2
3
4
5
6
7
var in = &ts{
C: "LOCK美国宇航局退休专家弗里德曼-斯科特在自传中披露",
K: "31uEbMgunupShBVTewXjtqbBv5MndwfXhb美国宇航局退休专家弗里德曼-斯科特在自传中披露",
T: 1000,
Max: 200,
Cn: "中文美国宇航局退休专家弗里德曼-斯科特在自传中披露",
}
1
2
msgpack 消耗时间: 495.486364ms 秒
Json 消耗时间: 869.840604ms 秒
相差很明显,字段长度越大越明显。把字段加多:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
var in = &ts{
C: "LOCK",
K: "31uEbMgunupShBVTewXjtqbBv5MndwfXhb",
T: 1000,
Max: 200,
Cn: "中文",
Cn1: "中文",
Cn2: "中文",
Cn3: "中文",
Cn4: "中文",
Cn5: "中文",
Cn6: "中文",
Cn7: "中文",
Cn8: "中文",
Cn9: "中文",
}
1
2
msgpack 消耗时间: 814.700585ms 秒
Json 消耗时间: 1.162055284s 秒
相差也很明显。顺便看一下 python:
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
# -*- coding: utf-8 -*-
from time import time
import msgpack
import json
import ujson
def exampleJson(ts):
t1 = time()
for i in xrange(100000):
b = json.dumps(ts)
out = json.loads(b)
print 'json', time() - t1, 's'
def exampleUjson(ts):
t1 = time()
for i in xrange(100000):
b = ujson.dumps(ts)
out = ujson.loads(b)
print 'ujson', time() - t1, 's'
def exampleMsgpack(ts):
t1 = time()
for i in xrange(100000):
b = msgpack.packb(ts)
out = msgpack.unpackb(b)
print 'msgpack', time() - t1, 's'
if __name__ == "__main__":
ts = {
"C": "LOCK",
"K": "31uEbMgunupShBVTewXjtqbBv5MndwfXhb",
"T": 1000,
"Max": 200,
"Cn": "中文",
"Cn1": "中文",
"Cn2": "中文",
"Cn3": "中文",
"Cn4": "中文",
"Cn5": "中文",
"Cn6": "中文",
"Cn7": "中文",
"Cn8": "中文",
"Cn9": "中文",
}
exampleJson(ts)
exampleUjson(ts)
exampleMsgpack(ts)
输出:
1
2
3
json 2.1737818718 s
ujson 0.397536039352 s
msgpack 0.445297956467 s
python 和 go:
1
2
3
py ujson > go msgpack x 2
py ujson > go json x 5
py json < go json x 2
python 里 ujson 和 msgpack 表现差不多,ujson 稍快一点点。
本文网址: https://golangnote.com/topic/105.html 转摘请注明来源