> My notes don't say anything about builds where only one or two files were chan...

GFK_of_xmaspast on Jan 1, 2016 | parent | context | favorite | on: Benchmarks of various C++ build tools

> My notes don't say anything about builds where only one or two files were changed, but my recollection is that that case was noticeably improved as well

I don't have timings, but this has been my experience as well.