Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!purdue!mentor.cc.purdue.edu!pur-ee!hankd From: hankd@pur-ee.UUCP (Hank Dietz) Newsgroups: comp.arch Subject: Re: SRAM vs. DRAM, 33MHz 386 UNIX-PC Message-ID: <12833@pur-ee.UUCP> Date: 11 Sep 89 15:08:45 GMT References: <21936@cup.portal.com> <1082@cernvax.UUCP> <3934@hplabsz.HPL.HP.COM> <1083@cernvax.UUCP> Reply-To: hankd@pur-ee.UUCP (Hank Dietz) Organization: Purdue University Engineering Computer Network Lines: 14 In article <1083@cernvax.UUCP> hjm@cernvax.UUCP (Hubert Matthews) writes: >In article <3934@hplabsz.HPL.HP.COM> kleinman@hplabs.hp.com (Bruce Kleinman) writes: >>[...I said that data caches aren't any good for long loops...] ... >But I can always find some access pattern that makes a data cache >ineffective. For instance, if the line size of the cache is N bytes, Yes for conventional cache management, not really for compiler-driven cache management (as I've said many times before ;-). See: Chi-Hung Chi, "Compiler-Driven Cache Management Using A State Level Transition Model," PhD dissertation, Purdue University, May 1989. -hankd@ecn.purdue.edu