こんにちは。受託開発担当(ここでは雑記担当)のMasaです。

前回はIE7とIE8のJavascript実行速度を比較しましたが、今回はFirefox3.0とFirefox3.5を比較します。
Dromaeo で JavaScript Tests を実行します。

【CPU】Intel(R) Core(TM)2 Duo E6750 @ 2.66Ghz
【OS】Windows Vista Ultimate

速度が落ちた項目は背景色を変えてあります

JavaScript Tests Firefox3.0 45.07 (runs/s) Firefox3.5 95.11 (runs/s)
3D Mesh Transformation: 90.75 61.38
3D Raytrace: 56.95 67.04
AES Encryption/Decryption: 28.37 90.29
Arrays: 122.30 318.41
Base 64 Encoding and Decoding: 40.65 281.62
Bitwise And: 130.42 531.39
Code Evaluation: 168.72 232.95
Compute Bits in Byte: 35.74 1711.00
Compute Bits in Byte (2): 47.25 483.51
DNA Sequence Alignment: 83.60 213.57
DNA Sequence Counting: 33.98 145.25
Date Formatting: 106.45 139.05
Date Formatting (2): 75.67 123.15
DeltaBlue Constraint Solving: 39.55 20.69
Fannkuch: 46.88 195.69
MD5 Hashing: 74.14 917.60
N-Body Rotation and Gravity: 42.13 246.31
Partial Sum Calculation: 163.21 1114.40
Prime Number Computation: 47.20 235.07
Prime Number Computation (2): 40.26 182.58
RSA Encryption/Decryption: 7.21 44.24
RayTracer: 2.66 3.23
Recursive Number Calculation: 92.16 96.73
Regular Expressions: 19.31 37.02
Richards Benchmarks: 63.57 490.20
Rotating 3D Cube: 66.44 154.38
SHA1 Hashing: 71.68 934.40
Script Unpacking: 8.44 11.74
Spectral Norm of a Matrix: 68.06 851.00
String Parsing and Searching: 4.45 4.93
Strings: 156.17 152.51
Tag Cloud Creation: 60.57 79.46
Traversing Binary Trees: 56.74 60.28
Trigonometric Calculation: 72.35 377.92
Validate User Input: 51.12 92.91

今回は思ったような結果が出ました。