Date: Thu, 18 Nov 2004 09:02:27 +0100 From: Andreas Braukmann <braukmann@tse-online.de> To: Mike Jakubik <mikej@rogers.com> Cc: freebsd-stable@freebsd.org Subject: Re: serious networking (em) performance (ggate and NFS) problem Message-ID: <B2FC71A50EF3B8FC6F75974C@[192.168.225.210]> In-Reply-To: <6131.209.2.100.34.1100742491.squirrel@209.2.100.34> References: <200411172357.47735.Emanuel.Strobl@gmx.net> <6131.209.2.100.34.1100742491.squirrel@209.2.100.34>
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--On Mittwoch, 17. November 2004 20:48 Uhr -0500 Mike Jakubik <mikej@rogers.com> wrote: > I have two PCs connected together, using the em card. One is FreeBSD 6 > from Fri Nov 5 , the other is Windows XP. I am using the default mtu of > 1500, no polling, and i get ~ 21MB/s tranfser rates via ftp. Im sure this > would be higher with jumbo frames. probably > Both computers are AMD cpus with Via > chipsets. Which AMD Chipset? VIA did some pretty bad PCI implementations in the past. Once I wondered about suspiciously low transfer rates in the process of testing 3Ware and Adaptec (2120S, 2200S) RAID-Controllers. The transfer rates maxed out at ca. 30 MByte/s. Switching the testboxes mainboard from one with VIA chipset to one with an AMD (MP / MPX) chipset was a great success. -Andreas
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