These benchmarks where take from The Computer Language Benchmarks Game (formerly The Great Computer Language Shootout). They test highely micro-optimized code.
To run the benchmarks under the official settings, pass mode=slow to make. You might also want to pass EXTRA_HC_OPTS="-fllvm".
- The mandelbrot benchmark wasn't included as its binary output (which would have to go in a .stdout file) is too large to check into the source tree.
- The regex-dna benchmark wasn't included as it depend on regex-pcre, which requires C libraries that aren't installed by default on many platforms.