Ubuntu 14.04/16.04 vs. Ubuntu Bash On Windows 10 Anniversary Performance
Next are more of the CPU-heavy tests,
With the Dolfyn scientific test, the performance between Ubuntu on Windows and Ubuntu installed bare metal was actually quite close. With Ubuntu 16.04 the performance is slower on both platforms due to the newer GCC compiler regressing the performance.
Fhourstones and John The Ripper show that the performance of Ubuntu running on Windows via the Windows Subsystem for Linux can be incredibly close to the bare metal Ubuntu Linux performance!