Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!bloom-beacon!ATHENA.MIT.EDU!swick
From: swick@ATHENA.MIT.EDU ("Ralph R. Swick")
Newsgroups: comp.windows.x
Subject: Re: Recover dynamic memory
Message-ID: <8911102132.AA21580@LYRE.MIT.EDU>
Date: 10 Nov 89 21:32:11 GMT
References: <303@goya.dit.upm.es>
Sender: daemon@bloom-beacon.MIT.EDU
Organization: DEC/MIT Project Athena
Lines: 11

>  I made a test program that only created and destroyed a 
>  widget in a infinite loop
>  When I run this program, it uses more and more memory and 
>  doesn't recover it.

There are a number of places in R3 where there is insufficient
information to be able to safely identify garbage and collect it.
The draft R4 additions attempt to improve this significantly.
I can't promise that all the holes are in fact plugged but we
should be able to provide the hooks to do a much better job of
heap recovery in R4.