> I adjusted the FAILSAFE_EVERY_PAGES comments, which now point out that
> FAILSAFE_EVERY_PAGES is a power-of-two. The implication is that the
> compiler is all but guaranteed to be able to reduce the modulo
> division into a shift in the lazy_scan_heap loop, at the point of the
> failsafe check. I doubt that it would really matter if the compiler
> had to generate a DIV instruction, but it seems like a good idea to
> avoid it on general principle, at least in performance sensitive code.
Thank you!
Regards,
Sami Imseih
Amazon Web Services (AWS)
