Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!umich!samsung!aplcen!haven!adm!news From: Ed@alderaan.scrc.symbolics.com (Ed Schwalenberg) Newsgroups: comp.unix.wizards Subject: Gripe about mickey-mouse VM behaviour on many Unixes Message-ID: <22105@adm.BRL.MIL> Date: 16 Jan 90 16:29:04 GMT Sender: news@adm.BRL.MIL Lines: 14 From: Tim Bray Date: 16 Jan 90 03:28:19 GMT Good luck, you'll need it. Here at the New OED project we have got seriously cheesed off about VM implementations on many unix systems. No matter how much you have, memory remains a critical resource. And if you don't have enough, you lose just as badly. Under System V Unix for the 386, when your large process exceeds the amount of non-wired physical memory, the paging algorithm pages out the ENTIRE process (which takes a LONG time), then lets your poor process fault itself in again, oh so painfully, until you exceed physmem again and start the cycle over.