Compact Encodings of List Structure
ACM Transactions on Programming Languages and Systems (TOPLAS)
An empirical study of list structure in Lisp
Communications of the ACM
List processing in real time on a serial computer
Communications of the ACM
A LISP garbage-collector for virtual-memory computer systems
Communications of the ACM
The Smalltalk-76 programming system design and implementation
POPL '78 Proceedings of the 5th ACM SIGACT-SIGPLAN symposium on Principles of programming languages
Experience with a microprogrammed Interlisp system
MICRO 11 Proceedings of the 11th annual workshop on Microprogramming
LISP/370: a short technical description of the implementation
ACM SIGSAM Bulletin
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The possibility of incredibly cheap, fantastically large media for storage gives rise to a realistic LISP memory management scheme under which GC may be postponed for days, or even indefinitely; the idea is encapsulated in the acronym "DDI" --- "GC? Don't Do It!". Tertiary memory is used to archive pages of the LISP environment which are perhaps reclaimable. but which have not been proven so; whereas the standard technique of "paging" is used to swap active data from the main memory to a secondary store such as magnetic disk. Some scenarios are presented considering a variety of currently-available technologies, and of one speculative possibility --- videodisc --- by which a requisite compactifying GC would be done "overnight", or over the weekend. With enough tertiary available, one design could last for over 12 years without a GC. "Write-once" memories, probably unusable for most applications, would not be at a disadvantage here.