Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!haven!adm!smoke!gwyn From: gwyn@smoke.BRL.MIL (Doug Gwyn) Newsgroups: comp.unix.wizards Subject: Re: mark() (was: libpw.a) Message-ID: <10104@smoke.BRL.MIL> Date: 23 Apr 89 01:26:41 GMT References: <157@dftsrv.gsfc.nasa.gov> <10013@smoke.BRL.MIL> <8184@chinet.chi.il.us> <1250@frog.UUCP> <564@aablue.UUCP> <1883@thor.acc.stolaf.edu> <15945@rpp386.Dallas.TX.US> <29996@bu-cs.BU.EDU> Reply-To: gwyn@brl.arpa (Doug Gwyn) Organization: Ballistic Research Lab (BRL), APG, MD. Lines: 8 In article <29996@bu-cs.BU.EDU> bzs@bu-cs.BU.EDU (Barry Shein) writes: -This should be very easy to implement within C/Unix, even within the -current malloc schemes by just introducing a special mark cell into -the chain. No, it is NOT easy to implement in some environments, at least not without unacceptable performance penalties for the vast majority of applications that would not benefit from it.