3 ms·

Not just Allegro, from what I read, Lispworks is also noticeably faster then SBCL (you might be able to find some comparisons for a practical system by googling

by patrec 8y ago

Not just Allegro, from what I read, Lispworks is also noticeably faster then SBCL (you might be able to find some comparisons for a practical system by googling for elPrep, which is now written in Go but used to be Common Lisp and ran on both Lispworks and SBCL). Concerning the appeal of Clozure CL, I think people have traditionally used it for faster dev turnaround due to better compilation speed than SBCL (which in turn typically generated faster code).

lispm 8y ago
For some reason ITA (now at Google) had people who advocated moving from SBCL to CCL for their application(s).
- wglb 8y ago
  I recall reading that the speed of compilation was a big issue for them with the size of their application.
  - patrec 8y ago
    Yes, I recall that they were using Clozure for dev and SBCL for production because of that at some point.