Hallo,
I wish add your software to my download based website.Please send me your
product download link,screenshuts,and description for my download based
website.
Thanking you
8/22/06, rhn-users-request (AT) redhat (DOT) com <rhn-users-request (AT) redhat (DOT) com>
wrote:
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Today's Topics:
1. Re: The purpose of this mailing list (jef e)
2. Re: Gigabit transfer speeds (Dan Hunter)
3. Re: Gigabit transfer speeds (Tim Schoenfelder)
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Message: 1
Date: Mon, 21 Aug 2006 16:05:44 -0400
From: jef e <jef_umd (AT) umd (DOT) umich.edu>
Subject: Re: [rhn-users] The purpose of this mailing list
To: Red Hat Network Users List <rhn-users (AT) redhat (DOT) com>
Message-ID: <44EA1218.5070209 (AT) umd (DOT) umich.edu>
Content-Type: text/plain; charset=IS
M Duffy wrote:
How does this sound?:
"Discussions about using Red Hat Network to apply updates to Red Hat
Enterprise Linux, including discussion about particular Red Hat
Enterprise Linux updates."
Is this too broad? How do / have you found this list most useful? Let's
focus the purpose towards that.
I think it's a good start, but despite all good intentions to make the
description as accurate as possible, I think that you might need to
actually include what the list *isn't* for.
Perhaps also include pointers to the other lists, so that those folks
that do need help can get better results from the proper community of
users.
--
jef
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Message: 2
Date: Mon, 21 Aug 2006 20:16:36 -0500
From: "Dan Hunter" <dmhunter (AT) charter (DOT) net>
Subject: Re: [rhn-users] Gigabit transfer speeds
To: "Red Hat Network Users List" <rhn-users (AT) redhat (DOT) com>
Message-ID: <002001c6c588$9d0d5a80$64011811@mutant>
Content-Type: text/plain; charset="iso-8859-1"
I have already set the packet size as large as the windows driver allow -
MTU = 7 Kb
But coping from a very high speed disk, or RAM drive is certainly a good
question.
Is the limitation the ethernet, PCI bus, hard driver controller, or the
hard drive itself?
Hmmm, me thinks an experiment or two is in the wind!
Message
From: Tim Schoenfelder
To: Red Hat Network Users List
Sent: Monday, August 21, 2006 1:37 PM
Subject: Re: [rhn-users] Gigabit transfer speeds
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Increase your packet size
of our networking class projects a couple years ago was to benchmark
gigibit ethernet transfer speeds.
I benchmarked 700mb/s+ between two Linux PCs which was reasonable to our
instructor.
He emphasized that the brand/chipset of cards made a big difference ( it
wasn't the most expensive that performed best ) as well as the drivers.
Some of his published tests as described below show that you can achieve
at least 700mb/s even with 32bit Netgear GA622T cards as illustrated in a ps
link from his website:
http://www.cs.uni.edu/~gray/
Benchmark project links:
http://www.cs.uni.edu/~gray/gig-over-copper/
http://www.cs.uni.edu/~
PS file showing performance benchmarks ( note 700mb/s+ requires packet
size of 100k+ bytes ):
http://www.cs.uni.edu/~
Tim
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8/21/06, Corne Beerse <cbeerse (AT) gmail (DOT) comwrote:
Dan Hunter wrote:
I regularly move large files from a windows XP machine to a Fedora
Core 5 machine.
To avoid bothering other network users, I purchased two Linksys
EG1032
gigabit ether net cards.
The cards have been installed. a direct PC to PC gigabit cross over
cable connects them.
A separate set of IP address have been set up.
I can verify that data is being transfered over the gigabit cable
with
windows task manager.
Transfers over the 10/100 link show up at 82 or 83 percent - about 80
Mbps.
Transfers over the gigabit link show up at 20 to 26 percent - about
230 Mbps.
What do I have set up wrong?
--
Your expectations are to high. If you have about 20% utilisation with a
Gbit nic, I'd say you are doing verry nice.
With the move to gigabit networking, the nic is no longer the
bottleneck. If you move data from disk on one machine or to disk on an
other, the disk-controllers, disk interfaces or even the actual disks
are most likely the bottlenecks. Then, the disk does not need to be the
bottleneck. Think about the speed of internal busses and for which they
are used while you are dumping data
--
CBee
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