On Saturday, 24 December 2016 at 10:54:08 UTC, Stefan Koch wrote:
300 microseconds, which is not even 0.3% of the time spent. Lexing them requires additionally also about 300 microseconds. So Together that makes up 0.6% of the time spent.
Of course in the above 3% and 6% are the right numbers. (And still conservative.) Since the are obtained by using a -profile build of dmd.