<div>Hallo,</div> <div>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.</div> <div>Thanking you... </div> <div>On 8/22/06, <a href="mailto:rhn-users-request@redhat.com">rhn-users-request@redhat.com</a> <<a href="mailto:rhn-users-request@redhat.com">rhn-users-request@redhat.com </a>> wrote: <blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Send rhn-users mailing list submissions to <a href="mailto:rhn-users@redhat.com">rhn-users@redhat.com </a> To subscribe or unsubscribe via the World Wide Web, visit <a href="https://www.redhat.com/mailman/listinfo/rhn-users">https://www.redhat.com/mailman/listinfo/rhn-users</a> or, via email, send a message with subject or body 'help' to <a href="mailto:rhn-users-request@redhat.com">rhn-users-request@redhat.com</a> You can reach the person managing the list at <a href="mailto:rhn-users-owner@redhat.com">rhn-users-owner@redhat.com </a> When replying, please edit your Subject line so it is more specific than "Re: Contents of rhn-users digest..." 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) ---------------------------------------------------------------------- Message: 1 Date: Mon, 21 Aug 2006 16:05:44 -0400 From: jef e <<a href="mailto:jef_umd@umd.umich.edu">jef_umd@umd.umich.edu</a>> Subject: Re: [rhn-users] The purpose of this mailing list To: Red Hat Network Users List <<a href="mailto:rhn-users@redhat.com"> rhn-users@redhat.com</a>> Message-ID: <<a href="mailto:44EA1218.5070209@umd.umich.edu">44EA1218.5070209@umd.umich.edu</a>> Content-Type: text/plain; charset=ISO-8859-1 Máirín 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 ------------------------------ Message: 2 Date: Mon, 21 Aug 2006 20:16:36 -0500 From: "Dan Hunter" <<a href="mailto:dmhunter@charter.net">dmhunter@charter.net</a>> Subject: Re: [rhn-users] Gigabit transfer speeds To: "Red Hat Network Users List" < <a href="mailto:rhn-users@redhat.com">rhn-users@redhat.com</a>> 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! ----- Original 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 Increase your packet size... One 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: <a href="http://www.cs.uni.edu/~gray/"> http://www.cs.uni.edu/~gray/</a> Benchmark project links: <a href="http://www.cs.uni.edu/~gray/gig-over-copper/">http://www.cs.uni.edu/~gray/gig-over-copper/</a> <a href="http://www.cs.uni.edu/~gray/gig-over-copper/gig-over-copper.html"> http://www.cs.uni.edu/~gray/gig-over-copper/gig-over-copper.html</a> PS file showing performance benchmarks ( note 700mb/s+ requires packet size of 100k+ bytes ): <a href="http://www.cs.uni.edu/~gray/gig-over-copper/hsln-lcn.ps"> http://www.cs.uni.edu/~gray/gig-over-copper/hsln-lcn.ps</a> Tim On 8/21/06, Corne Beerse <<a href="mailto:cbeerse@gmail.com">cbeerse@gmail.com</a>> wrote: 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 _______________________________________________ rhn-users mailing list <a href="mailto:rhn-users@redhat.com">rhn-users@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/rhn-users">https://www.redhat.com/mailman/listinfo/rhn-users </a> -- Tim Schoenfelder <a href="http://timschoenfelder.com">http://timschoenfelder.com</a> ------------------------------------------------------------------------------ _______________________________________________ rhn-users mailing list <a href="mailto:rhn-users@redhat.com">rhn-users@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/rhn-users">https://www.redhat.com/mailman/listinfo/rhn-users</a> -------------- next part -------------- An HTML attachment was scrubbed... URL: <a href="https://www.redhat.com/archives/rhn-users/attachments/20060821/b0af1141/attachment.html">https://www.redhat.com/archives/rhn-users/attachments/20060821/b0af1141/attachment.html </a> ------------------------------ Message: 3 Date: Tue, 22 Aug 2006 10:10:02 -0500 From: "Tim Schoenfelder" <<a href="mailto:tim@timschoenfelder.com">tim@timschoenfelder.com</a>> Subject: Re: [rhn-users] Gigabit transfer speeds To: "Red Hat Network Users List" <<a href="mailto:rhn-users@redhat.com">rhn-users@redhat.com</a>> Message-ID: <<a href="mailto:52d4eaab0608220810p2a44de59o8af10edfcf8cd068@mail.gmail.com"> 52d4eaab0608220810p2a44de59o8af10edfcf8cd068@mail.gmail.com</a>> Content-Type: text/plain; charset="iso-8859-1" The testing also involved linux/windows communications... >From the webpage: "Note: All cards were tested at 1500, 3000, 4000, and 6000 values for the TCP MTU size. The drivers for the cards were not modified. Cards based upon the dp83820 chipset were limited to 6000MTU due to driver defaults. All other cards were tested through 9000MTU." NOTE: <a href="http://www.cs.uni.edu/~gray/gig-over-copper/gig-over-copper.htmldescribes">http://www.cs.uni.edu/~gray/gig-over-copper/gig-over-copper.htmldescribes </a> that the benchmarks were gathered using Netpipe 2.4: <a href="http://www.scl.ameslab.gov/netpipe">http://www.scl.ameslab.gov/netpipe</a> >From the above netpipe webpage ... "Gigabit Ethernet delivers around 900 Mbps with latencies of 25-62 microseconds from 64-bit 66 MHz PCI buses." .. I haven't substantiated this but you may wish to consider the 100K+ packet size as the TcpWindowSize as described in <a href="http://support.microsoft.com/kb/314053/en-us">http://support.microsoft.com/kb/314053/en-us</a> " Description: This parameter determines the maximum TCP receive window size of the computer. The receive window specifies the number of bytes a sender can transmit without receiving an acknowledgment. Generally, larger receive windows improve performance over high (delay * bandwidth) networks. For highest efficiency, the receive window must be an even multiple of the TCP Maximum Segment Size (MSS)." The complete benchmark write-up is located at: <a href="http://www.cns.uni.edu/~gray/gig-over-copper/hsln-lcn.ps">http://www.cns.uni.edu/~gray/gig-over-copper/hsln-lcn.ps </a><<a href="http://www.cns.uni.edu/%7Egray/gig-over-copper/hsln-lcn.ps">http://www.cns.uni.edu/%7Egray/gig-over-copper/hsln-lcn.ps</a>> These were the OS environments:( Note: Even the win2k tests were over 600mbs....) "Each system was configured to boot into Debian 3.0 GNU/Linux and Microsoft Windows 2000 Professional. Versions 2.4.7, 2.4.19-pre9-ac2, and 2.5.7 of the Linux kernel were used for testing on the GNU/Linux operating system. Service pack 2 was applied to the Win- dows 2000 installation." Tim On 8/21/06, Dan Hunter <<a href="mailto:dmhunter@charter.net">dmhunter@charter.net</a>> wrote: > > 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! > > ----- Original Message ----- > *From:* Tim Schoenfelder <<a href="mailto:tim@timschoenfelder.com"> tim@timschoenfelder.com</a>> > *To:* Red Hat Network Users List <<a href="mailto:rhn-users@redhat.com">rhn-users@redhat.com</a>> > *Sent:* Monday, August 21, 2006 1:37 PM > *Subject:* Re: [rhn-users] Gigabit transfer speeds > > Increase your packet size... > > One 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: > > <a href="http://www.cs.uni.edu/~gray/">http://www.cs.uni.edu/~gray/</a> <<a href="http://www.cs.uni.edu/%7Egray/"> http://www.cs.uni.edu/%7Egray/</a>> > > Benchmark project links: > <a href="http://www.cs.uni.edu/~gray/gig-over-copper/">http://www.cs.uni.edu/~gray/gig-over-copper/</a><<a href="http://www.cs.uni.edu/%7Egray/gig-over-copper/"> http://www.cs.uni.edu/%7Egray/gig-over-copper/</a>> > <a href="http://www.cs.uni.edu/~gray/gig-over-copper/gig-over-copper.html">http://www.cs.uni.edu/~gray/gig-over-copper/gig-over-copper.html</a><<a href="http://www.cs.uni.edu/%7Egray/gig-over-copper/gig-over-copper.html"> http://www.cs.uni.edu/%7Egray/gig-over-copper/gig-over-copper.html</a>> > > PS file showing performance benchmarks ( note 700mb/s+ requires packet > size of 100k+ bytes ): > > <a href="http://www.cs.uni.edu/~gray/gig-over-copper/hsln-lcn.ps"> http://www.cs.uni.edu/~gray/gig-over-copper/hsln-lcn.ps</a><<a href="http://www.cs.uni.edu/%7Egray/gig-over-copper/hsln-lcn.ps">http://www.cs.uni.edu/%7Egray/gig-over-copper/hsln-lcn.ps</a>> > > Tim > > On 8/21/06, Corne Beerse <<a href="mailto:cbeerse@gmail.com">cbeerse@gmail.com</a>> wrote: > > > > 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 > > > > _______________________________________________ > > rhn-users mailing list > > <a href="mailto:rhn-users@redhat.com">rhn-users@redhat.com </a> > > <a href="https://www.redhat.com/mailman/listinfo/rhn-users">https://www.redhat.com/mailman/listinfo/rhn-users</a> > > > > > > -- > Tim Schoenfelder > <a href="http://timschoenfelder.com"> http://timschoenfelder.com</a> > > ------------------------------ > > _______________________________________________ > rhn-users mailing list > <a href="mailto:rhn-users@redhat.com">rhn-users@redhat.com </a> > <a href="https://www.redhat.com/mailman/listinfo/rhn-users">https://www.redhat.com/mailman/listinfo/rhn-users</a> > > > _______________________________________________ > rhn-users mailing list > <a href="mailto:rhn-users@redhat.com">rhn-users@redhat.com</a> > <a href="https://www.redhat.com/mailman/listinfo/rhn-users">https://www.redhat.com/mailman/listinfo/rhn-users</a> > > -- Tim Schoenfelder <a href="http://timschoenfelder.com">http://timschoenfelder.com</a> -------------- next part -------------- An HTML attachment was scrubbed... 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