I guess I've reached Gigabit
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Actually it looks like ping wasn't a good indicatator of speed. I
tried downloading knoppix, and running iperf, and it came up with 528
Mbps, so it seems that is working. I'm not sure why FTP was limited
before cause I was able to pull at about 20 MB/s in knoppix. What is
still bothering me is samba won't go faster than 13.6 MB/s which is
annoying...
Anyway thank you for your help everyone...
Steve R
Judd Tracy wrote:
| Well ya, because netperf did not involve any other pci bandwidth on
| the motherboard. As soon as you start using the hard drive for a
| networked files system you start too loose more then half the peak
| bandwidth you got with netperf because now you have pci contention
| to deal with along with symmetrical use of the pci bandwidth by the
| nic and drive. But it is still a huge improvement over the
| ~10MB/s you probably were getting on 100Tx.. Also 120MB/s peak is
| very good under linux for such a slow system. Most of the issuses
| with getting full bandwidth gigabit deal with the tcp processing
| overhead.
|
| Judd
|
| Piszcz, Justin wrote:
|
|> It depends what he's doing.
|>
|> There is netperf, is it? It consists of a client/daemon
|> processes; I was able to push 90-120MB/s to a Pentium 3 500 MHz
|> box with the same board.
|>
|> However, FTP/NFS were limited to 33MB/s or so to/from this slow
|> machine.
|>
|> -----Original Message----- From: Judd Tracy
|> [mailto:jtracy@ist.ucf.edu] Sent: Thursday, April 14, 2005 1:36
|> PM To: Roberto C. Sanchez Cc: SmartList Subject: Re: Can't reach
|> the Gigabit barrier
|>
|> You also have to remember that you only have 32bit pci, so you
|> will never acheive anything close to full speed with your current
|> motherboard.
|>
|> Judd Tracy
|>
|> Roberto C. Sanchez wrote:
|>
|>
|>
|>> Steve Ramage wrote:
|>>
|>>
|>>
|>>> I have a small server at the specs are as follows
|>>>
|>>> Duron 900 Gigabyte GA-7ZM 512 MB PC133 SDRAM 1x 120 GB HDD 1x
|>>> 200 GB HDD Two networks cards: 1x D-Link DE-528TX (10 Mbps)
|>>> 1x Intel Pro/1000 MT Desktop Adapter (1000 Mbps) I just added
|>>> the Intel Pro/1000 adapter, as a replacement to an older
|>>> D-Link DFE-538TX ( 100 Mbps)
|>>>
|>>
|>> <SNIP>
|>>
|>>
|>>
|>>> If I run: ping -f -s 60000 172.27.2.27 from the three
|>>> machines and target my Windows machine, the other machine
|>>> with a 1 Gbps card, I
|>>>
|>
|> can
|>
|>
|>>> get about 45%, usage out of the network, according to
|>>> windows, so the
|>>>
|>>
|>> <SNIP>
|>>
|>> Have you considered that with a low end 900 MHz and slow FSB
|>> (133 MHz) that you are going to have a hard time filling a
|>> Gigabit pipe? Think about it. Gigabit represents ~125 MB/s. I
|>> have a similar low-spec machine and have a hard time getting
|>> more than ~70 MB/s across the PCI bus.
|>>
|>> -Roberto
|>>
|>> -- Roberto C. Sanchez http://familiasanchez.net/~sanchezr
|>>
|>
|>
|>
|>
|>
|
|
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