;; Stop-and-copy GC is really really slow when used too often. CSR
;; reported that even on his old 64 Mb SPARC, 20 Mb is much faster
;; than 4 Mb when rebuilding SBCL ca. 0.7.1. For modern machines
;; with >> 128 Mb memory, the optimum could be significantly more
;; than this, but at least 20 Mb should be better than 4 Mb.
;; Stop-and-copy GC is really really slow when used too often. CSR
;; reported that even on his old 64 Mb SPARC, 20 Mb is much faster
;; than 4 Mb when rebuilding SBCL ca. 0.7.1. For modern machines
;; with >> 128 Mb memory, the optimum could be significantly more
;; than this, but at least 20 Mb should be better than 4 Mb.