Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!leah!itsgw!steinmetz!davidsen From: davidsen@steinmetz.ge.com (Wm. E. Davidsen Jr) Newsgroups: comp.arch Subject: physical vs. virtual cache Keywords: cache Message-ID: <13413@steinmetz.ge.com> Date: 24 Mar 89 13:19:38 GMT Reply-To: davidsen@crdos1.UUCP (bill davidsen) Distribution: na Organization: GE Corp. R & D, Schenectady,NY Lines: 14 Would someone like to describe the less obvious features of cache types in terms of real estate, design problems, etc? I see lots of allusions but damn few hard facts. Unless you disagree with these, they've been mentioned many times: virtual: fast, no address translation needed physical: no need to flush on context switch no aliasing problems -- bill davidsen (wedu@crd.GE.COM) {uunet | philabs}!steinmetz!crdos1!davidsen "Stupidity, like virtue, is its own reward" -me