[nycbug-talk] transfer speed

[Bjorn Nelson]

Michael,

On May 19, 2005, at 3:08 PM, michael wrote:

> All,
>
> I have a quick network question.
>
> I have two boxes on the same subnet connected to the same switch.   
> When
> I scp a 3.2M file back and forth between them I get wildly different
> transfer rates.
>
> A=Linux 2.6.6-rc1
> B=FreeBSD 5.3-RELEASE-p10
>
> A=>B: 100% 3272KB  55.5KB/s  00:59
> B=>A: 100% 3272KB   3.2MB/s   00:00
>
> What could cause that? What data should I collect to help me answer
> that?

ssh is fairly cpu intensive.  Are you sure there wasn't anything  
running in the background while you were doing the first transfer?   
scp is pretty bad for measuring throughput, you might want to to try  
to test throughput using http, ftp, or rsh.

-Bjorn
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.nycbug.org/pipermail/talk/attachments/20050519/093b624a/attachment.html