anchor.diff:  --------------------------
   
   * choose your algorithms carefully (e.g. sort...)
  -* use market proof algorithms implementations
  +* use market proof algorithms implementations (do not re-invent the wheel)
   * avoid polling
   
   
  
positive.code: * serializing/deserializing is slow
  * creating a regexp is slow
  * don't use exceptions as return values / for control flow!
  ** building a stack trace is extremely slow
  
  
  
  
negative.code: ------------
  
  * know how your CPU work (e.g. cache levels)
  * keep your class data small (ideally should fit on one cache line, i.e. 64 bytes)
  * favor inlining by the JIT, by keeping methods small
  * getters/setters may hurt (if not inlined) +
    _(and are often useless)_
  * replace Lists and Strings by arrays
  * prefer StringBuilder over String.format
  
  