- be open source, or at least source-available, so other people can reproduce the results - be *reasonably* self-contained, so that I don't have to spend three hours setting up build dependencies
 - be written mostly in D, I don't want to benchmark GCC
 - work with DMD 2.061 or DMD 2.062
 - run on Linux or OS X

You could also use pfft, then. This branch is the most up to date:

https://github.com/jerro/pfft/tree/use-gcc-udas

If you run:

./build
./build --tests

It will generate files test/test_float, test/test_double and test/test_real. You can choose compiler with --dc DMD|GDC|LDC. You can use -s flag on test/test_* executables to do a benchmark. Test executables and build.d have --help option.

To make the comparison fair, it would probably be good to use --simd sse flag when building tests, because otherwise GDC and LDC versions will use AVX if run on a machine that supports it and DMD won't.

I also have test/benchmarks.d script that runs benchmarks and outputs charts, but I made no attempt to make it user friendly and you would need to read and modify its (a bit messy) code to use it - the only option it takes is the location of output files. It depends on Plot2kill.

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