[Sbcl-help] memory requirements of save-lisp-and-die

[David H. <dav...@gm...>]

I tried to save a core image using (sb-ext:save-lisp-and-die
"foo.core") when SBCL's memory usage was at about 1.7 GB (including
about 1.6 GB of live data I want to save) on a machine with 2 GB of
physical memory.  The machine quickly started swapping, and I left it
to run overnight.  The process had been killed when I woke up.

How much space do I need to run save-lisp-and-die?  I am about to
expand the box to 4 GB; will that be sufficient, or do I need to
reduce my memory usage before saving an image?

-David