From mboxrd@z Thu Jan 1 00:00:00 1970 From: Doc Shipley To: 9fans@cse.psu.edu Subject: Re: [9fans] small boxed PC and dual CPU file server? In-Reply-To: <724ddada05d9bb9643865ae2030bd664@plan9.bell-labs.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Date: Fri, 19 Jul 2002 11:54:49 -0500 Topicbox-Message-UUID: d2507f6c-eaca-11e9-9e20-41e7f4b1d025 On Fri, 19 Jul 2002 jmk@plan9.bell-labs.com wrote: > The new fileserver stuff is (currently) built on top of the 'normal' Plan 9 > kernel so you get the SMP stuff for free. > > Yes, you can saturate a PCI GbE from an Intel x86 system, just 'dd' into the ether data file. Are you sure you're saturating the ethernet adapter and not the PCI bus? A full 64-bit, 33MHz PCI bus gives something on the order of 275 MB, or 2200 Mb. That's _total_ available bandwidth. Even in a totally unloaded setup, I can't see getting a gigabit through it without knocking the box on its nose. Never mind the bus overhead when you start moving bits from disk instead of the, um, ether. Mind, I'm not claiming you're wrong, I just really want to know what hardware will do that. I may hear my next system calling. > But with TCP/IP, not at the moment. Our best minds are working on it, though. That's a true fact. Doc