Date: Wed, 24 Jan 2001 22:57:33 -0600 From: "Joong Hyun Kim" <better@ns1.betterbox.net> To: <hardware@freebsd.org> Subject: RE: New Netgear Model GA620T gigabit cards installed, but slow speeds... any ideas? Message-ID: <EKEPIMFMEPAAELGAIDALMEPODJAA.better@ns1.betterbox.net> In-Reply-To: <EKEPIMFMEPAAELGAIDALKEPJDJAA.better@ns1.betterbox.net>
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Hi folks... I've found the problem. The hardware does play a major role. Looks like today's 32bit pci bus is only capable of doing 300 to 400MBits/sec. We had one box with Dual Xeon 500Mhz that was able to push close to 400MBits/sec... we've found this by using netpipe on it's own ti0 interface. The other machine only has Quad Pentium Pro 200Mhz machine... that's where the bottleneck showed about 80MBits/sec. According to 3Com, 64Bit PCI bus can push the gigabit ethernet even further. We are now looking into replacing the Quad Pentium Pro server with new hardware. :-) -Joong -----Original Message----- From: owner-freebsd-hardware@FreeBSD.ORG [mailto:owner-freebsd-hardware@FreeBSD.ORG]On Behalf Of Joong Hyun Kim Sent: Wednesday, January 24, 2001 10:01 PM To: hardware@freebsd.org Subject: New Netgear Model GA620T gigabit cards installed, but slow speeds... any ideas? Our company just purchased two gigabit cards to speed up transfers from one unix file server to another unix backup server. Both systems are configured with fast harddrives and fast hardware. I will spare the details of the hardware since my focus is on the gigabit cards. Basically, we've used a Gigabit cross over (cat 5) cable. It seems to be working fine. We can ping back and forth between the two machines using the gigabit ethernet interfaces (ti). However, we're disappointed with our initial tests using ftp and nfs. They both seem to yield less than favorable results. The speeds are a bit slower than the two 10/100 Intel cards on both machines. Average transfer through the 10/100 Intel for a 600MByte file is around 6.14MBytes/sec. And the average transfer through the gigabit cards yielded about 5MBytes/sec. We were hoping for blazing speeds compared to the 100 Mbits/sec Intel cards. Any ideas on what may be slowing things down? Or are we just simply using the wrong software to test the gigabit connections? thanks, Joong Kim EPC, Inc. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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