On Tuesday, 10 December 2013 at 21:39:12 UTC, H. S. Teoh wrote:
One of my template-heavy projects take almost 10 seconds to compile just a single source file.
Always compile all your D files at once, that's my tip, otherwise you'll pay that cost every time the file is imported!
But yeah, my work app can take up to a full minute to compile, lots of ctfe there. D can be super fast, but can also be slow with the current impl.