If you want more performance out of zlib, step one is recompile. I've seen flabbergasting speedup out of basic CPU-bound utilities simply by recompiling the so

If you want more performance out of zlib, step one is recompile. I've seen flabbergasting speedup out of basic CPU-bound utilities simply by recompiling the source code for a fifteen-year-old binary using a modern compiler. Which also brings up the point that if you want to benchmark zlib-ng, compile zlib with the same compiler.