From: Alan Ruttenberg
Subject: ephemeral gc
Date: Sat, 28 Dec 1991 04:38:05 +0000
Message-ID: <ALANR.91Dec27233805@liszt.media-lab.media.mit.edu>

 In article <············@early-bird.think.com> ······@think.com (Barry Margolin) writes:

   Lucid Common Lisp has had generational garbage collection (they call it
   "Ephemeral Garbage Collection", because that's what Symbolics called it
   before there was a common name in the industry) for several years.  I'm
   pretty sure that Allegro CL also has a generational garbage collector.
   -- 
   Barry Margolin, Thinking Machines Corp.

   ······@think.com
   {uunet,harvard}!think!barmar

Macintosh Common Lisp (currently released in beta), also has
generational garbage collection.

-alan

From: John Carroll
Subject: Re: ephemeral gc
Date: Sat, 28 Dec 1991 16:56:36 +0000
Message-ID: <1991Dec28.165636.6634@cl.cam.ac.uk>

In article <···················@liszt.media-lab.media.mit.edu> ·····@liszt.media-lab.media.mit.edu (Alan Ruttenberg) writes:
>
> In article <············@early-bird.think.com> ······@think.com (Barry Margolin) writes:
>
>   Lucid Common Lisp has had generational garbage collection (they call it
>   "Ephemeral Garbage Collection", because that's what Symbolics called it
>   before there was a common name in the industry) for several years.  I'm
>   pretty sure that Allegro CL also has a generational garbage collector.
>   -- 
>   Barry Margolin, Thinking Machines Corp.
>
>   ······@think.com
>   {uunet,harvard}!think!barmar
>
>Macintosh Common Lisp (currently released in beta), also has
>generational garbage collection.
>
>-alan

It seems to be fairly commonplace. Procyon Common Lisp for the 386 PC
has it. Harlequin LispWorks has it.

John Carroll
Cambridge University Computer Lab