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TCP window size. Google it.


________________________________

From: proftp-user-bounces@lists.sourceforge.net
[mailtoroftp-user-bounces@lists.sourceforge.net] On Behalf Of
Srinivasa Battula
Sent: Monday, February 26, 2007 3:57 AM
To: proftp-user@lists.sourceforge.net
Subject: [Proftpd-user] Windows proFTPD performance Issues with
1 Gbpsnetwork
=09
=09

Hi Guys,

I am observing strange behavior of proftpd when the system
is on 1 Giga network. The download speed (4 MB) are very low compared to
upload speeds (30 MB). However the speeds are consistent on 100 Mbps.
This problem is being observed when both server and client are on
Windows. I have used Windows FTP Client and File zilla client for the
above test cases and found the pattern is similar. Please find my
observed statistics with different server-client configurations:

=20

Windows Server and Windows Client:

Upload speed: 30 MB/Sec

Download Speed: 4 MB/Sec=20

=20

Windows Server and Linux Client:

Upload speed: 35 MB/Sec

Download Speed: 14 MB/Sec

=20

Linux Server and Windows Client:

Upload speed: 35 MB/Sec

Download Speed: 14 MB/Sec

=20

Please do suggest me on this.

=20

Thanks and Regards,

BSR

=20


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=3D=20
"urn:schemas-microsoft-comfficeffice" xmlns:w =3D=20
"urn:schemas-microsoft-comffice:word">
charset=3Dus-ascii">




face=3DArial=20
color=3D#0000ff size=3D2>TCP window size. Google =
it.


style=3D"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px =
solid; MARGIN-RIGHT: 0px">



From:=20
proftp-user-bounces@lists.sourceforge.net=20
[mailtoroftp-user-bounces@lists.sourceforge.net] On Behalf Of=20
Srinivasa Battula
Sent: Monday, February 26, 2007 3:57=20
AM
To: proftp-user@lists.sourceforge.net
Subject:=20
[Proftpd-user] Windows proFTPD performance Issues with 1=20
Gbpsnetwork




style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Hi=20
Guys,>>


style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Verdana">    I =
am=20
observing strange behavior of proftpd when the system is on 1 Giga =
network.=20
The download speed (4 MB) are very low compared to upload speeds (30 =
MB).=20
However the speeds are consistent on 100 Mbps. This problem is being =
observed=20
when both server and client are on Windows. I have used Windows FTP =
Client and=20
File zilla client for the above test cases and found the pattern is =
similar.=20
Please find my observed statistics with different server-client=20
configurations:>>


style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Verdana">>


size=3D2> style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: =
Verdana">Windows
face=3DVerdana size=3D2> style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Verdana"> =
Server and=20
Windows=20
Client:>>


style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Verdana">         =20
Upload speed: 30 MB/Sec>>


style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Verdana">         =20
Download Speed: 4=20
MB/Sec
>>


style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Verdana">>


size=3D2> style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: =
Verdana">Windows
face=3DVerdana size=3D2> style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Verdana"> =
Server and=20
#ff6600">Linux=20
Client:>>


style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Verdana">         =20
Upload speed: 35 MB/Sec>>


style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Verdana">         =20
Download Speed: 14 MB/Sec>>


style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Verdana">>


size=3D2> style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: =
Verdana">Linux
face=3DVerdana size=3D2> style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Verdana"> =
Server and=20
Windows =

Client:>>


style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Verdana">         =20
Upload speed: 35 MB/Sec>>


style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Verdana">         =20
Download Speed: 14 MB/Sec>>


style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Verdana">>


style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Please do suggest me =
on=20
this.>>


style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Verdana">>


style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Thanks and=20
Regards,
>>


style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Verdana">BSR
>>


style=3D"FONT-SIZE: =
12pt">>


>

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