github.com/fumiama/gofastTEA@v0.0.10/README.md (about)

     1  # gofastTEA
     2  TEA 编码算法的 PLAN9 汇编优化实现
     3  
     4  ## 编译逻辑
     5  - 大于等于 1.17 版本且是 amd64，使用非`asm`非内联算法
     6  - 大于等于 1.17 版本且不是 amd64，使用非`asm`内联算法
     7  - 小于 1.17 版本且是 amd64，使用`asm`内联算法
     8  - 小于 1.17 版本且不是 amd64，使用非`asm`内联算法
     9  
    10  ## 1.17 版本及以上
    11  代码与[MiraiGo](https://github.com/Mrs4s/MiraiGo/blob/574c4e57b1467225f03936342e477ee0d587a2dc/binary/tea.go)相比，替换了随机算法为`runtime.fastrand`，且简化了`Decrypt`，提升速度如下。
    12  ```css
    13  name         old time/op    new time/op    delta
    14  TEAen/16-8      241ns ± 1%     225ns ± 1%  -6.97%  (p=0.000 n=9+10)
    15  TEAen/256-8    1.71µs ± 1%    1.68µs ± 1%  -1.31%  (p=0.000 n=10+9)
    16  TEAen/4K-8     25.0µs ± 1%    25.0µs ± 1%    ~     (p=0.497 n=10+9)
    17  TEAen/32K-8     203µs ± 0%     202µs ± 0%    ~     (p=0.079 n=10+9)
    18  TEAde/16-8      208ns ± 1%     208ns ± 0%    ~     (p=0.914 n=9+9)
    19  TEAde/256-8    1.65µs ± 1%    1.65µs ± 1%    ~     (p=0.429 n=9+10)
    20  TEAde/4K-8     24.7µs ± 1%    24.5µs ± 1%  -0.44%  (p=0.026 n=9+10)
    21  TEAde/32K-8     200µs ± 1%     199µs ± 0%  -0.37%  (p=0.001 n=9+9)
    22  
    23  name         old speed      new speed      delta
    24  TEAen/16-8   66.3MB/s ± 1%  71.3MB/s ± 1%  +7.50%  (p=0.000 n=9+10)
    25  TEAen/256-8   150MB/s ± 1%   152MB/s ± 1%  +1.31%  (p=0.000 n=10+9)
    26  TEAen/4K-8    164MB/s ± 1%   164MB/s ± 1%    ~     (p=0.497 n=10+9)
    27  TEAen/32K-8   162MB/s ± 0%   162MB/s ± 0%    ~     (p=0.075 n=10+9)
    28  TEAde/16-8    154MB/s ± 1%   154MB/s ± 0%    ~     (p=0.982 n=9+9)
    29  TEAde/256-8   165MB/s ± 1%   165MB/s ± 1%    ~     (p=0.399 n=9+10)
    30  TEAde/4K-8    167MB/s ± 1%   168MB/s ± 1%  +0.44%  (p=0.026 n=9+10)
    31  TEAde/32K-8   164MB/s ± 1%   165MB/s ± 0%  +0.37%  (p=0.001 n=9+9)
    32  ```
    33  
    34  ## 1.16 版本及以下
    35  使用 PLAN9 汇编编写`Encrypt`，内联编写`Decrypt`，替换了加密算法为`runtime.fastrand`，与[MiraiGo](https://github.com/Mrs4s/MiraiGo/blob/574c4e57b1467225f03936342e477ee0d587a2dc/binary/tea.go)代码同在`go1.16`版本下编译相比，提升速度如下（new16.txt）。
    36  ```css
    37  name         old time/op    new time/op    delta
    38  TEAen/16-8      252ns ± 0%     227ns ± 0%  -10.00%  (p=0.000 n=9+10)
    39  TEAen/256-8    1.77µs ± 1%    1.66µs ± 0%   -6.28%  (p=0.000 n=9+10)
    40  TEAen/4K-8     25.9µs ± 0%    24.9µs ± 1%   -3.65%  (p=0.000 n=10+10)
    41  TEAen/32K-8     208µs ± 1%     200µs ± 0%   -3.70%  (p=0.000 n=10+9)
    42  TEAde/16-8      216ns ± 1%     210ns ± 1%   -3.04%  (p=0.000 n=10+10)
    43  TEAde/256-8    1.71µs ± 1%    1.66µs ± 1%   -2.93%  (p=0.000 n=10+10)
    44  TEAde/4K-8     25.4µs ± 1%    24.8µs ± 0%   -2.36%  (p=0.000 n=10+9)
    45  TEAde/32K-8     206µs ± 0%     200µs ± 0%   -2.53%  (p=0.000 n=9+9)
    46  
    47  name         old speed      new speed      delta
    48  TEAen/16-8   63.5MB/s ± 0%  70.6MB/s ± 0%  +11.12%  (p=0.000 n=9+10)
    49  TEAen/256-8   145MB/s ± 1%   154MB/s ± 0%   +6.69%  (p=0.000 n=9+10)
    50  TEAen/4K-8    158MB/s ± 0%   164MB/s ± 1%   +3.79%  (p=0.000 n=10+10)
    51  TEAen/32K-8   158MB/s ± 1%   164MB/s ± 0%   +3.84%  (p=0.000 n=10+9)
    52  TEAde/16-8    148MB/s ± 1%   152MB/s ± 1%   +3.12%  (p=0.000 n=10+10)
    53  TEAde/256-8   160MB/s ± 1%   164MB/s ± 1%   +3.01%  (p=0.000 n=10+10)
    54  TEAde/4K-8    162MB/s ± 1%   166MB/s ± 0%   +2.41%  (p=0.000 n=10+9)
    55  TEAde/32K-8   159MB/s ± 0%   164MB/s ± 0%   +2.60%  (p=0.000 n=9+9)
    56  ```
    57  另外[MiraiGo](https://github.com/Mrs4s/MiraiGo/blob/574c4e57b1467225f03936342e477ee0d587a2dc/binary/tea.go)本身在`go1.16`版本与在`go1.17`版本下编译相比，提升速度如下（new17.txt）。
    58  ```css
    59  name         old time/op    new time/op    delta
    60  TEAen/16-8      252ns ± 0%     241ns ± 1%  -4.09%  (p=0.000 n=9+10)
    61  TEAen/256-8    1.77µs ± 1%    1.70µs ± 0%  -3.85%  (p=0.000 n=9+10)
    62  TEAen/4K-8     25.9µs ± 0%    24.9µs ± 1%  -3.59%  (p=0.000 n=10+10)
    63  TEAen/32K-8     208µs ± 1%     200µs ± 1%  -3.78%  (p=0.000 n=10+10)
    64  TEAde/16-8      216ns ± 1%     208ns ± 1%  -3.80%  (p=0.000 n=10+10)
    65  TEAde/256-8    1.71µs ± 1%    1.65µs ± 1%  -3.44%  (p=0.000 n=10+10)
    66  TEAde/4K-8     25.4µs ± 1%    24.5µs ± 0%  -3.40%  (p=0.000 n=10+10)
    67  TEAde/32K-8     206µs ± 0%     199µs ± 0%  -3.36%  (p=0.000 n=9+10)
    68  
    69  name         old speed      new speed      delta
    70  TEAen/16-8   63.5MB/s ± 0%  66.3MB/s ± 1%  +4.27%  (p=0.000 n=9+10)
    71  TEAen/256-8   145MB/s ± 1%   150MB/s ± 0%  +4.01%  (p=0.000 n=9+10)
    72  TEAen/4K-8    158MB/s ± 0%   164MB/s ± 1%  +3.73%  (p=0.000 n=10+10)
    73  TEAen/32K-8   158MB/s ± 1%   164MB/s ± 1%  +3.93%  (p=0.000 n=10+10)
    74  TEAde/16-8    148MB/s ± 1%   154MB/s ± 1%  +3.95%  (p=0.000 n=10+10)
    75  TEAde/256-8   160MB/s ± 1%   165MB/s ± 1%  +3.55%  (p=0.000 n=10+10)
    76  TEAde/4K-8    162MB/s ± 1%   168MB/s ± 0%  +3.52%  (p=0.000 n=10+10)
    77  TEAde/32K-8   159MB/s ± 0%   165MB/s ± 0%  +3.45%  (p=0.000 n=9+9)
    78  ```
    79  可见在编码时，在`go1.16`版本下的某些时候（编码大小在`0-16kb`之间），`gofastTEA`比`go1.17`版本的`MiraiGo`实现更快，且整体来看，`gofastTEA`在`go1.16`版本下的执行效率已经可以与`MiraiGo`实现的`go1.17`版本基本持平。