> As a side note, it is interesting to see that multithreaded compilation of a single page provides significant performance benefits here...this is usually not

> As a side note, it is interesting to see that multithreaded compilation of a single page provides significant performance benefits here...this is usually not done with C/C++ code compilation from what I understand about it Well, that's because typically all cores are maxed out during a parallel build of large-scale C++ software, so there's no need to go any further. With link-time optimization it's a different story…hence the work some compilers (like rustc for Rust) are doing to parallelize builds of single compilation units.