Re: Intros to scavenging GC (Eliot Moss)
30 Apr 91 12:39:07 GMT

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Newsgroups: comp.compilers
From: (Eliot Moss)
Keywords: storage. C++
Organization: Dept of Comp and Info Sci, Univ of Mass (Amherst)
References: <>
Date: 30 Apr 91 12:39:07 GMT

Dan Edelson's thesis does not discuss scavenging style GC, though it is a
copying scheme if I recall correctly. The original scavenging article was
by David Ungar in the Proceedings of the ACM SIGSOFT/SIGPLAN Software
Engineering Symposium on Practical Software Development Environments. The
Wilson and Moher article in OOPSLA 89, which gives a lot of background on
gc techniques. Note that in order to do scavenging you have to do store
checks and manage remembered sets, which incurs overhead on every pointers
store (at least stores of pointers to instances of the classes you
scavenge). Note also that we are working on quality compiler support for
scavenging in the GNU Modula-3 effort of my research group at UMass.
J. Eliot B. Moss, Assistant Professor
Department of Computer and Information Science
Lederle Graduate Research Center
University of Massachusetts
Amherst, MA 01003
(413) 545-4206, 545-1249 (fax);

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