[TriLUG] Ethernet Question

[Brian Henning]

My first guess would be differences in the disk read/write performance 
of the two systems.  If the server is a little clunkier and can only 
store data at 500kb/sec, the transfer isn't going to go any faster.

On the other hand, for magnetic media it doesn't seem to make sense that 
reads and writes wouldn't be the same speed (compared to, for example, 
flash, where writes are much slower than reads), so that doesn't 
necessarily make any sense either..  Unless perhaps the filesystem is 
having to fragment the data, which would introduce more seek delays..

So I stand by my guess.  Disk I/O.

~B

Steve Kuekes wrote:
> I'm having a strange problem on my home ethernet.
> 
> I have two linux systems that are connected via a 10/100 hub, a linux 
> workstation and a linux server, both running slightly different versions 
> of Mandrake 10.0.
> 
> When I do a sftp get from the server to the workstation for a large file 
> (like an iso image) I get about 170kb/sec throughput (as indicated by 
> sftp).  When I do a sftp put from the workstation to the server I get 
> 500kb/sec.  And a get of the same file takes much longer than a put of 
> the same file.  I've also noticed this performance problem reading from 
> the linux server using a Windows/Samba connection and using a linux 
> client using NFS.  Writing data is fast, but reading is slow.
> 
> Any ideas on where to look for this problem?

-- 
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Brian A. Henning
strutmasters.com
336.597.2397x238
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