"He used the compiler's self-compilation speed as a measure of the compiler's quality. Considering that Wirth's compilers were written in the languages they com

"He used the compiler's self-compilation speed as a measure of the compiler's quality. Considering that Wirth's compilers were written in the languages they compiled, and that compilers are substantial and non-trivial pieces of software in their own right, this introduced a highly practical benchmarks that directly contested a compiler's complexity against its performance." p44 "Oberon — The Overlooked Jewel" Michael Franz, in "The School of Niklaus Wirth". https://www.google.com/books/edition/The_School_of_Niklaus_Wirth/6kHs4s-79bkC?hl=en&gbpv=1&bsq=self-compilation%20speed https://www.google.com/books/edition/The_School_of_Niklaus_W...