Date: Wed, 19 Oct 2005 23:33:21 +0200 From: =?ISO-8859-1?Q?Sten_Daniel_S=F8rsdal?= <lists@wm-access.no> To: Michael VInce <mv@roq.com> Cc: freebsd-net@freebsd.org, stable@freebsd.org Subject: Re: Network performance 6.0 with netperf Message-ID: <4356BBA1.3000103@wm-access.no> In-Reply-To: <43564800.3010309@roq.com> References: <434FABCC.2060709@roq.com> <20051014205434.C66245@fledge.watson.org> <43564800.3010309@roq.com>
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Michael VInce wrote: > I reinstalled the netperf to make sure its the latest. > > I have also decided to upgrade Server-C (the i386 5.4 box) to 6.0RC1 and > noticed it gave a large improvement of network performance with a SMP > kernel. > > As with the network setup ( A --- B --- C ) with server B being the > gateway, doing a basic 'fetch' from the gateway (B) to the Apache server > (C) it gives up to 700mbits/sec transfer performance, doing a fetch from > server A thus going through the gateway gives slower but still decent > performance of up to 400mbits/sec. Are you by any chance using PCI NIC's? PCI Bus is limited to somewhere around 1 Gbit/s. So if you consider; Theoretical maxium = ( 1Gbps - pci_overhead ) -- Sten Daniel Sørsdal
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