Friday, May 19, 2017

Performace of String.hashCode

Hi, it seems like compute of String.hashCode lead to making a new string to be created each call: String key = ":" + str; 
Isnt it a performance penalty ?

I removed body of StringHashCache.getHashCode and replaced  it with simple 
  return compute(str);

After that I got 15x times boost in my string-concat-and-compute-hash test.



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