[gclist] Experience with conservative GC sought
Fri, 16 Jan 1998 10:22:59 -0800
On Jan 16, 11:18am, David Gadbois wrote:
> It would be interesting to see of Wentworth's results also
> hold for 64-bit machines, where you have a lot more leeway about
> where to put the heap.
Note that if I remember correctly Wentworth's results were for 16-bit machines,
not 32-bit machines. They were obtained in an environment in which EVERY
integer was a valid heap address. He conservatively scanned for 16-bit values
that were cons-cell addresses. His cons-cell addresses where really indicees
into a 64K array of (32 bit?) cons cells. (This was on early X86 machines, I
believe). I viewed the fact that this ever worked as fairly astonishing.