Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!rice!sun-spots-request From: mhorstm@swbatl.swbt.com (Mark Horstman 5-3417) Newsgroups: comp.sys.sun Subject: Re: Sparcstations using 16M or more under SunOS Keywords: Hardware Message-ID: <7514@brazos.Rice.edu> Date: 8 May 90 20:22:15 GMT Sender: root@rice.edu Organization: Sun-Spots Lines: 17 Approved: Sun-Spots@rice.edu X-Refs: Original: v9n154 X-Sun-Spots-Digest: Volume 9, Issue 158, message 1 In article <7463@brazos.Rice.edu> gordoni@chook.ua.oz.au (Gordon Irlam) writes: >SunOS tends to have problems >handling anything more than around 16M on a Sparcstation as described >below. > >The problem we encounter is that with this much memory a very large number >of address translations faults are occurring, up to 3000 per second, and >with each fault taking around 300ms to handle this means that around 90% >of the total CPU time is spent in system mode handling these faults. Is this true? I was planning on purchasing 4 4MB SIMMS to extend the standard memory (8 1MB SIMMS) that came with my SS1. Mark Horstman Southwestern Bell Telephone mhorstm@swbatl.sbc.com uunet!swbatl!mhorstm