The following comment above #define PAGES_PER_CHUNK in tibbitmap.c appears to be incorrect:
"But we
* also want PAGES_PER_CHUNK to be a power of 2 to avoid expensive integer
* remainder operations. So, define it like this:"
I don't quite follow this as it does nothing of the kind. Check tbm_page_is_lossy() where we do: bitno = pageno % PAGES_PER_CHUNK;
Or am I missing something about the compiler optimizing that to: bitno = pageno & 255; ?
Regards
David Rowley