Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!murthy
From: murthy@skuld.cs.cornell.edu (Chet Murthy)
Newsgroups: comp.lang.lisp
Subject: Allegro: loading into oldspace
Message-ID: <33647@cornell.UUCP>
Date: 28 Oct 89 21:36:48 GMT
Sender: nobody@cornell.UUCP
Organization: Cornell Univ. CS Dept. Ithaca NY
Lines: 18
Keywords:


Hi. Does anybody out there know how to load into oldspace under Allegreo CL?

I need to load a 24Mbyte file into Allegro, and when I try it with
the vanilla GC options, utilization gets really, really bad.  When I tried
setting the generation-spread, which is the variable which controls
how fast an object is tenured from newspace into oldspace, to 1, which is
supposedly the lowest value, it didn't help a bit.  Also, the oldspaces
that Allegro creates are really puny - 40k words (I think) in size.  I'd like
to create _huge_ ones, 40Mb in size, etc.  Does anyone have pointers to how
to do either?  I tried looking around in the Allegro manuals, including
the Generational GC implementation guide, to no avail.

Thanks in advance,
--chet--

	--chet--
	murthy@cs.cornell.edu