Help!!! about tcp performance

[moonbird]

Hi,
I have set all the registry, and can see the big window size in packets when
file trans.But the speed seemed no change.When I copy file from remote
server(4M Line),it still costed many more time than in vista.

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\GlobalMaxTcpWindowSize
HKLM\System\CurrentControlSet\Services\Tcpip\Parameters\TCPWindowSize
HKLM\System\CurrentControlSet\Services\Tcpip\Parameters\Interface\InterfaceGUID\TCPWindowSize

Did it not implement said in the doc
http://technet.microsoft.com/en-us/magazine/cc162519.aspx

WHY???

[Ace Fekay [MVP]]

Post by moonbird
Hi,
I have set all the registry, and can see the big window size in
packets when file trans.But the speed seemed no change.When I copy
file from remote server(4M Line),it still costed many more time than
in vista.
HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\GlobalMaxTcpWindowSize
HKLM\System\CurrentControlSet\Services\Tcpip\Parameters\TCPWindowSize
HKLM\System\CurrentControlSet\Services\Tcpip\Parameters\Interface\InterfaceGUID\TCPWindowSize
Did it not implement said in the doc
http://technet.microsoft.com/en-us/magazine/cc162519.aspx
WHY???

Speed, what speed? WAN speed across your ISP's line or server to server
spped? What type of line do you have?

What exactly were your intentions changing the TCPWin size, for Internet
traffic or internal traffic? As the link you provided stated, it depends on
the speed of the link and the RTT.

Here's another site that may be helpful:
http://www.speedguide.net/read_articles.php?id=157

TCP Stream in Win XP Pro?
http://fixunix.com/networking/36693-tcp-stream-win-xp-pro.html
--
Regards,
Ace

This posting is provided "AS-IS" with no warranties or guarantees and
confers no rights.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT,
MVP Microsoft MVP - Directory Services
Microsoft Certified Trainer

For urgent issues, you may want to contact Microsoft PSS directly. Please
check http://support.microsoft.com for regional support phone numbers.

Infinite Diversities in Infinite Combinations

[moonbird]

Thank you very much!

the line is 4M MPLS private line
and the RTT is 350ms
When I use vista the throughput can be more than 250bps.
But use XP no matter enable big window size or not, the speed is vety low
than use vista.

Post by Ace Fekay [MVP]

Post by moonbird
Hi,
I have set all the registry, and can see the big window size in
packets when file trans.But the speed seemed no change.When I copy
file from remote server(4M Line),it still costed many more time than
in vista.
HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\GlobalMaxTcpWindowSize
HKLM\System\CurrentControlSet\Services\Tcpip\Parameters\TCPWindowSize
HKLM\System\CurrentControlSet\Services\Tcpip\Parameters\Interface\InterfaceGUID\TCPWindowSize
Did it not implement said in the doc
http://technet.microsoft.com/en-us/magazine/cc162519.aspx
WHY???

Speed, what speed? WAN speed across your ISP's line or server to server
spped? What type of line do you have?
What exactly were your intentions changing the TCPWin size, for Internet
traffic or internal traffic? As the link you provided stated, it depends
on the speed of the link and the RTT.
http://www.speedguide.net/read_articles.php?id=157
TCP Stream in Win XP Pro?
http://fixunix.com/networking/36693-tcp-stream-win-xp-pro.html
--
Regards,
Ace
This posting is provided "AS-IS" with no warranties or guarantees and
confers no rights.
Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT,
MVP Microsoft MVP - Directory Services
Microsoft Certified Trainer
For urgent issues, you may want to contact Microsoft PSS directly. Please
check http://support.microsoft.com for regional support phone numbers.
Infinite Diversities in Infinite Combinations

[moonbird]

sorry :)
throughput is 250kbps

Post by moonbird
Thank you very much!
the line is 4M MPLS private line
and the RTT is 350ms
When I use vista the throughput can be more than 250bps.
But use XP no matter enable big window size or not, the speed is vety low
than use vista.

Post by Ace Fekay [MVP]

Post by moonbird
Hi,
I have set all the registry, and can see the big window size in
packets when file trans.But the speed seemed no change.When I copy
file from remote server(4M Line),it still costed many more time than
in vista.
HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\GlobalMaxTcpWindowSize
HKLM\System\CurrentControlSet\Services\Tcpip\Parameters\TCPWindowSize
HKLM\System\CurrentControlSet\Services\Tcpip\Parameters\Interface\InterfaceGUID\TCPWindowSize
Did it not implement said in the doc
http://technet.microsoft.com/en-us/magazine/cc162519.aspx
WHY???

Speed, what speed? WAN speed across your ISP's line or server to server
spped? What type of line do you have?
What exactly were your intentions changing the TCPWin size, for Internet
traffic or internal traffic? As the link you provided stated, it depends
on the speed of the link and the RTT.
http://www.speedguide.net/read_articles.php?id=157
TCP Stream in Win XP Pro?
http://fixunix.com/networking/36693-tcp-stream-win-xp-pro.html
--
Regards,
Ace
This posting is provided "AS-IS" with no warranties or guarantees and
confers no rights.
Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT,
MVP Microsoft MVP - Directory Services
Microsoft Certified Trainer
For urgent issues, you may want to contact Microsoft PSS directly. Please
check http://support.microsoft.com for regional support phone numbers.
Infinite Diversities in Infinite Combinations