爲什麼雜音比內置的MD5/SHA1方法

Question

我只是想雜音哈希C＃端口慢...

但是我對其性能很失望。它似乎比內置的C＃MD5/SHA1 computeHash方法慢。

調試模式很好，在此模式下雜音較快。如果切換到釋放模式，它比SHA1或MD5哈希方法更慢。

Answer 1

我找到了原因，就應該設置爲64或anycpu，而不是86

這裏的測試結果。

Release - Target AnyCPU 


Murmur Hash profile... 
test Bytes  :2621440000 
iterations  :10000 
totalSeconds :**1.787** 
bytesPerSecond :1466950195.85898 
mbitsPerSecond :1398.99272523783 





BuildinSHA Hash profile... 
test Bytes  :2621440000 
iterations  :10000 
totalSeconds :**5.956** 
bytesPerSecond :440134318.334453 
mbitsPerSecond :419.74479516454 

Release - Target X86 

Murmur Hash profile... 
test Bytes  :2621440000 
iterations  :10000 
totalSeconds :10.612 
bytesPerSecond :247026008.292499 
mbitsPerSecond :235.582359592914 


BuildinSHA Hash profile... 
test Bytes  :2621440000 
iterations  :10000 
totalSeconds :5.987 
bytesPerSecond :437855353.265408 
mbitsPerSecond :417.571404710205 

Release - Target X64 



Murmur Hash profile... 
test Bytes  :2621440000 
iterations  :10000 
totalSeconds :1.732 
bytesPerSecond :1513533487.29792 
mbitsPerSecond :1443.41801385681 


BuildinSHA Hash profile... 
test Bytes  :2621440000 
iterations  :10000 
totalSeconds :5.968 
bytesPerSecond :439249329.758713 
mbitsPerSecond :418.900804289544 

SOURE代碼：

https://github.com/arisoyang/Murmur3Hash