Date: Sun, 29 Jun 2003 11:54:40 -0400 From: David Gilbert <dgilbert@velocet.ca> To: Craig Reyenga <craig@craig.afraid.org> Subject: Re: Tuning Gigabit Message-ID: <16127.3008.179405.697453@canoe.velocet.net> Resent-Message-ID: <16127.3026.897967.804387@canoe.velocet.net> In-Reply-To: <000901c33e0e$09266000$0200000a@fireball> References: <20030628190036.0E06B37B405@hub.freebsd.org> <000f01c33dad$1595a0f0$e602a8c0@flatline> <16126.9805.829406.368426@canoe.velocet.net> <20030629003134.GV71533@klapaucius.zer0.org> <16126.18820.474512.227009@canoe.velocet.net> <000901c33e0e$09266000$0200000a@fireball>
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>>>>> "Craig" == Craig Reyenga <craig@craig.afraid.org> writes: Craig> From: "David Gilbert" <dgilbert@velocet.ca> >> >>>>> "Gregory" == Gregory Sutter <gsutter@zer0.org> writes: >> Gregory> Will you please summarize the motherboard performance data so Gregory> we know which boards to buy and which to skip? Thanks. >> I've been working on such a summary. So far, the 'nvidia' chipset >> boards have all tested badly. They couldn't be coaxed to pass more >> than 100meg of traffic by any means we could discern. Craig> It's kind of funny that my FIC VA-503+ from 1997 washes the Craig> Nvidia aside. Memories. The FIC-503+ was a real trooper. Craig> What tools in FreeBSD could you use to see that the PCI bus is Craig> the limiting factor? Or is it simply done with a calculator? In hindsight, I forgot to mention that my 300 megabit figure is based on bidirectional routing tests :). Our theory that the PCI bus is at fault is largely due to the number of tests we've run ... where the OS is identical and we vary the hardware. We also use the calculator to think about bus maximums. Dave. -- ============================================================================ |David Gilbert, Velocet Communications. | Two things can only be | |Mail: dgilbert@velocet.net | equal if and only if they | |http://daveg.ca | are precisely opposite. | =========================================================GLO================
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