Comparison between python JSON performance testing and simplejson, jsonsimplejson

Comparison between python JSON performance testing and simplejson, jsonsimplejson

After a simple testJSON, That is, the json processing library that comes with python2.6 or above, the efficiency is still acceptable:

1 k Data, 36898 GHz CPU, single core per second dump: Times. It is about 5 times that of pyamf. However, the data volume is large, which is about 1.67 times (1101/656) of pyamf ).

Start_time: 1370747463.77
Loop_num: 36898
End_time: 1370747464.78

 

Let's take a look.SimplejsonIf the C extension is not installed:

Simplejson, without the C extension installed, I was surprised by the result:

Start_time: 1370748132.87
Loop_num: 1361
End_time: 1370748133.88

The efficiency is so low.

 

The following is the test code:

[Python]View plaincopy

1. #! /Usr/bin/env python
2. # Coding = UTF-8
4. Import time
5. Import json
7. Test_data = {
8. 'Route he ':{
9. 'Name': unicode ('lily', 'utf-8 '),
10. 'Server': unicode ('fresh, elegant, floral, utf-8 '),
11. 'Grow _ time': 0.5,
12. 'Fruit _ time': 0.5,
13. 'Super _ time': 0.5,
14. 'Total _ time': 1,
15. 'Buy': {'gold': 2 ,},
16. 'Harvest _ fruit': 1,
17. 'Harvest _ super': 1,
18. 'Sale': 1,
19. 'Level _ need': 0,
20. 'Experience ': 2,
21. 'Exp _ fruit ': 1,
22. 'Exp _ super': 1,
23. 'Used': True,
24. },
25. '1 ':{
26. 'Interval': 0.3,
27. 'Bability ':{
28. '98 ': {'chips': (5, 25 ),},
29. '2': {'gem ),},
30. },
31. },
32. '2 ':{
33. 'Unlock': {'chips ': 1000, 'fc': 10 ,},
34. 'Interval': 12,
35. 'Bability ':{
36. '70': {'chunk': (120,250 ),},
37. '20': {'gem ),},
38. '10': {'gem ': (2, 2 ),},
39. },
40. },
41. 'One ':{
42. '10, 5': {'id': 'm01', 'y': 1, 'msg ': U' found a silver coin in the jar! ',},
43. '3, 7': {'id': 'm02', 'y': 10, 'msg ': U' found ten silver coins! A huge amount of money! ',},
44. '15, 5': {'id': 'm03', 'y': 2, 'msg ': U' a mouse ran past ',},
45. '7, 4': {'id': 'm04 ', 'y': 4, 'msg': U' found four Rusty silver coins ...... ',},
46. '2, 12': {'id': 'm05 ', 'y': 6, 'msg': U' six shiny silver coins! ',},
47. },
49. }
51. Start_time = time. time ()
52. Print "start_time:", start_time
54. J = 1
55. While True:
56. J + = 1
57. A = json. dumps (test_data)
58. Data_length = len ()
59. End_time = time. time ()
60. If end_time-start_time> = 1:
61. Break
62. Print "loop_num:", j
63. Print "end_time:", end_time
64. Print data_length,

 

Summary: python's built-in json is acceptable in terms of performance. Simplejson, without C extension acceleration, is extremely inefficient.