pnkfelix

The linked Wikipedia page references a OOPSLA 2005 paper by Matthew Hertz and Emery D. Berger that presents data saying that with 3x memory you might reasonably expect a 17% slowdown when compared to manual memory management. (And 70% slowdown when limited to 2x memory.)

Of course there have been some advanced in GC technology since 2005 (and that paper was deliberately measuring a relatively standard generational approach). But I don’t think I’d call the 5x figure a serious exaggeration.

That is strange; I bootstrap regularly with `--enable-debug` and have not seen an arithmetic overflow during bootstrap (at least, not for a long time).

It would probably be best to carry on a conversation on a formal bug report; did you file one at the url it listed?