Re: network slowdown
From: David Efflandt (efflandt_at_xnet.com)
Date: 05/28/05
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Date: Sat, 28 May 2005 10:55:58 +0000 (UTC)
On Thu, 26 May 2005, vipin.agrawal@sbcglobal.net
<vipin.agrawal@sbcglobal.net> wrote:
> Hello,
>
> I have a network at home that consists of a linux based router/firewall.
> I have 2 imacs, 2 windows, 1 linux desktop and one laptop with linux
> on it. The network has a 100Mb switch. When I ftp files between the
> router, linux desktop and the imac - I get a transfer rate of around
> 8MB/sec. Whenever I run the ftp on the windows, or the linux laptop I'm
> getting around 2MB/sec transfer rate...
100baseT may be faster than some old hard drives (especially if not using
dma). For example when I ftp uploaded a file from an old Linux PC without
dma, transfer would top out about 2-3MB/sec. If I deleted the destination
file and uploaded again, it would upload from disk cache (RAM) at 7MB/sec.
Also if using a hub instead of a switch, with a hub (half-duplex) there
may be collisions or it may depend what other traffic is happening at the
time. A switch can be full duplex without collisions.
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