From owner-freebsd-questions Tue Jan 30 02:36:25 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id CAA00548 for questions-outgoing; Tue, 30 Jan 1996 02:36:25 -0800 (PST) Received: from Sysiphos (Sysiphos.MI.Uni-Koeln.DE [134.95.212.10]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id CAA29970 Tue, 30 Jan 1996 02:32:39 -0800 (PST) Received: by Sysiphos id AA16365 (5.67b/IDA-1.5); Tue, 30 Jan 1996 11:27:00 +0100 Message-Id: <199601301027.AA16365@Sysiphos> From: se@zpr.uni-koeln.de (Stefan Esser) Date: Tue, 30 Jan 1996 11:26:59 +0100 In-Reply-To: "Jonathan M. Bresler" "Re: various questions" (Jan 29, 21:00) X-Mailer: Mail User's Shell (7.2.6 alpha(2) 7/9/95) To: "Jonathan M. Bresler" Subject: Re: various questions Cc: questions@freebsd.org Sender: owner-questions@freebsd.org Precedence: bulk On Jan 29, 21:00, "Jonathan M. Bresler" wrote: } Subject: Re: various questions } On Mon, 29 Jan 1996, Stefan Esser wrote: } > I'd really love to have bytebench results for the SP3G with both } > WRITE-BACK and WRITE-THROUGH secondary cache. The Dirty Tag RAM } > seems to cost some $20, and it might be a good way to improve my } > systems effective memory throughput. } } dont have bytebench results, but i do have make world results. } } write-through: } 30638.79 real 16447.05 user 3895.20 sys } write-back: } 25740.88 real 15898.30 user 3779.36 sys Thanks! Those are as good, if not better, than the bogus byte bench results :) Seems you see some 3% to 4% improved user/system time (this is a 486DX2/66, I assume ... ?) DX2/66 22902.31 real 17493.97 user 3495.63 sys AMD5x86 16795.20 real 11689.23 user 2822.52 sys *1.50 (user) P133 13449.10 real 8789.22 user 2073.65 sys *1.33 (user) Since I just went from a 486DX2/66 to an AMD 5x86, I thought I might just post my make world result, and have added a 2.1R make world posted by JKH a few weeks ago ... Seems that an AMD 5x86 is more than halfway towards a P133 :) :) Regards, STefan -- Stefan Esser, Zentrum fuer Paralleles Rechnen Tel: +49 221 4706021 Universitaet zu Koeln, Weyertal 80, 50931 Koeln FAX: +49 221 4705160 ============================================================================== http://www.zpr.uni-koeln.de/~se