Stalin is very impressive, but > Simple benchmark (vs C (gcc), Stalin wins) Did you read the comments? > Nice, but part of the reason the C version is slow i

Stalin is very impressive, but > Simple benchmark (vs C (gcc), Stalin wins) Did you read the comments? > Nice, but part of the reason the C version is slow is that you are using abs instead of fabs. abs takes an int as an argument (this should be a compiler warning!) – passing a double other than zero always returns a large number. The C version is basically iterating till the error is below double’s resolution. > Excellent point! Making the switch to fabs brings the gcc-inline speed down almost exactly to what Stalin is getting.