Poor network performance

Posted: 02-10-2009, 05:29 PM
When I try to copy a large file from my Vista machine to a Windows 2003
machine, it goes VERY slowly. There are bursts when I get 450mbit/second
transfer, but mostly it's closer to 10mbit/second.

See here for a capture of Task Manager:
http://members.shaw.ca/linkto/temp/Taskmanager.png

I've search online and tried many of the fixes with no change. Checked
network cabling, etc.

Vista Home Premium 64 bit with SP1. All Microsoft updates done up to
yesterday. 3Ghz dual core Intel system with 4gig memory and dual gigabit LAN
ports on the mainboard. Using the Marvell Yukon 88E001 gig port. Marvell
Yukon 88E8056 gig port is disabled.

Windows 2003 Server Standard, SP2. All Microsoft updates done up to
yesterday. Opteron 165 CPU with 3gig memory and dual gigabit LAN ports on
the mainboard. Using the nVidia gig port. Marvell Yukon 88E8001 gig port is
disabled.

(I just noticed the gig port chipsets. I am going to try to run the two
88E8001 ports together to see if that improves anything)

These are connected together through a Dlink DSG-1008 8 port gigabit switch.

Both machines are set to use 9000 byte jumbo packets, and this is supported
by the switch.

I've tried performing the copies through Explorer, Command prompt, and
several third party file managers. Antivirus has been disabled on both
machines. No firewalls on these ports. Both ports set to Autonegotiate and
do negotiate full duplex 1000mb/sec.

Can anyone tell me what might be going on here? Anything I should be looking
for?



Poor network performance


Responses to "Poor network performance"

Robert L. \(MS-MVP\)
Guest
Posts: n/a
 
Re: Poor network performance
Posted: 02-10-2009, 06:11 PM
You may try to disable autotuning. this how to may help.
Vista IPCONFIG and Network Settings
How to disable Auto-tuning on Windows Vista How to disable TCP/IPv6
How to disable ICS public connection in Vista How to: Enabling ICS on
Vista ...
www.howtonetworking.com/vista/vistaipconfig.htm


--
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on
http://www.HowToNetworking.com
"Calab" <myspam@csd.ca> wrote in message
news:%239gauU6iJHA.4880@TK2MSFTNGP02.phx.gbl...
> When I try to copy a large file from my Vista machine to a Windows 2003
> machine, it goes VERY slowly. There are bursts when I get 450mbit/second
> transfer, but mostly it's closer to 10mbit/second.
>
> See here for a capture of Task Manager:
> http://members.shaw.ca/linkto/temp/Taskmanager.png
>
> I've search online and tried many of the fixes with no change. Checked
> network cabling, etc.
>
> Vista Home Premium 64 bit with SP1. All Microsoft updates done up to
> yesterday. 3Ghz dual core Intel system with 4gig memory and dual gigabit
> LAN ports on the mainboard. Using the Marvell Yukon 88E001 gig port.
> Marvell Yukon 88E8056 gig port is disabled.
>
> Windows 2003 Server Standard, SP2. All Microsoft updates done up to
> yesterday. Opteron 165 CPU with 3gig memory and dual gigabit LAN ports on
> the mainboard. Using the nVidia gig port. Marvell Yukon 88E8001 gig port
> is disabled.
>
> (I just noticed the gig port chipsets. I am going to try to run the two
> 88E8001 ports together to see if that improves anything)
>
> These are connected together through a Dlink DSG-1008 8 port gigabit
> switch.
>
> Both machines are set to use 9000 byte jumbo packets, and this is
> supported by the switch.
>
> I've tried performing the copies through Explorer, Command prompt, and
> several third party file managers. Antivirus has been disabled on both
> machines. No firewalls on these ports. Both ports set to Autonegotiate and
> do negotiate full duplex 1000mb/sec.
>
> Can anyone tell me what might be going on here? Anything I should be
> looking for?
>
>
>
Calab
Guest
Posts: n/a
 
Re: Poor network performance
Posted: 02-10-2009, 06:59 PM

"Robert L. (MS-MVP)" <findemail@chicagotech.net> wrote in message
news:e%234Mk36iJHA.4448@TK2MSFTNGP05.phx.gbl...
> You may try to disable autotuning. this how to may help.
> Vista IPCONFIG and Network Settings
> How to disable Auto-tuning on Windows Vista How to disable TCP/IPv6
> How to disable ICS public connection in Vista How to: Enabling ICS on
> Vista ...
> www.howtonetworking.com/vista/vistaipconfig.htm
Thanks, but I've already done that. Didn't make any difference.

I've now got both machines running hardcoded at 1000mb, on the88E8001
controllers. Settings are identical on both. Still seeing the spotty
throughput.



Calab
Guest
Posts: n/a
 
Re: Poor network performance
Posted: 02-10-2009, 07:10 PM

"Calab" <myspam@csd.ca> wrote in message
news:%239gauU6iJHA.4880@TK2MSFTNGP02.phx.gbl...
> When I try to copy a large file from my Vista machine to a Windows 2003
> machine, it goes VERY slowly. There are bursts when I get 450mbit/second
> transfer, but mostly it's closer to 10mbit/second.
>
> See here for a capture of Task Manager:
> http://members.shaw.ca/linkto/temp/Taskmanager.png
> (I just noticed the gig port chipsets. I am going to try to run the two
> 88E8001 ports together to see if that improves anything)
Did this, but there is no change.

> Can anyone tell me what might be going on here? Anything I should be
> looking for?
I've just tried to use FTP to copy my files from Vista to the Win2K3 and it
is still spotty.

Looks like a network issue and NOT an OS issue... at least at this point.

Any suggestions are appreciated!

Calab
Guest
Posts: n/a
 
Re: Poor network performance
Posted: 02-10-2009, 08:58 PM

"Calab" <myspam@csd.ca> wrote in message
news:%239gauU6iJHA.4880@TK2MSFTNGP02.phx.gbl...
> When I try to copy a large file from my Vista machine to a Windows 2003
> machine, it goes VERY slowly. There are bursts when I get 450mbit/second
> transfer, but mostly it's closer to 10mbit/second.
>
> See here for a capture of Task Manager:
> http://members.shaw.ca/linkto/temp/Taskmanager.png

Ooops! I've fixed the missing image.

Robert L. \(MS-MVP\)
Guest
Posts: n/a
 
Re: Poor network performance
Posted: 02-11-2009, 04:28 PM
Could you please give us more detail how you fixed it?

--
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on
http://www.HowToNetworking.com
"Calab" <myspam@csd.ca> wrote in message
news:OsZQkJ8iJHA.4448@TK2MSFTNGP05.phx.gbl...
>
> "Calab" <myspam@csd.ca> wrote in message
> news:%239gauU6iJHA.4880@TK2MSFTNGP02.phx.gbl...
>> When I try to copy a large file from my Vista machine to a Windows 2003
>> machine, it goes VERY slowly. There are bursts when I get 450mbit/second
>> transfer, but mostly it's closer to 10mbit/second.
>>
>> See here for a capture of Task Manager:
>> http://members.shaw.ca/linkto/temp/Taskmanager.png
>
>
> Ooops! I've fixed the missing image.
 
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