Re: Slow file sharing performance

Allan Latham wrote:
> Hi all
> 
> this has generated a lot of replies. It may make it easier if we could all see 
> a more precise statement of the problem:
> 
> What exactly are you running - hardware, OS and cipe versions at both ends?
> What are the respective performances for both small and large files (in each 
> direction)?

Main desktop system: Athlon XP 1700+
Firewall: 166 MHz Pentium
Notebook:  1.113 GHz PIII

Red Hat 7.3 on all systems, with CIPE cipe-1.4.5-9 on both ends of the VPN

Wben accessing the notebook from the home lan, performance is as may be 
expected from a dial up connection for all protocols.  When accessing 
the home network from the notebook, everything works fine, except SMB & 
NFS.  For example, ftp works OK.  I haven't made any performance 
measurements.  However Ethereal shows SMB transfers stop after about 12 
packet exchanges.  If I wait an extremely long time, I may see something 
show up, but not much.

> Are directory searches slow or just file transfers?

Both.

> If your OS supports pings of various lengths what does this show (in each 
> direction)?

I haven't tried different length pings, however other traffic, such as 
telnet, ftp, ssh etc. have no problems.  I have also tried adjusting MTU 
on both the VPN and end systems.  Ping times through the firewall are 
slightly longer than those without.

> What are the firewall rules on all machines you have control of (notebook, 
> cable modem (if applicable), home router, file server)?
> What NFS sofware are you using - is it TCP or UDP based?

There are no firewall rules currently running on the notebook.  The VPN 
traffic doesn't pass through any firewall rules, though the ethernet 
port to the cable modem is filtered and configured to pass the 
appropriate UDP ports.  I'm using the NFS that came with Red Hat, which 
I believe is UDP.  The firewall rules were posted in another message.


> 
> One last point not raised so far - what are your transmit queue lengths on the 
> file server and the home router. Ifconfig gives you these.

All are 100.
> 
> Please excuse me if some of this is already available in the current thread 
> but it would be good to get it one place.
> 
> I feel that this will go some way to helping everyone on the list get a 
> clearer picture - and hopefully an answer.
> 
> Best regards
> 
> Allan
> 
> On Sunday 31 August 2003 04:39, James Knott wrote:
> 
>>I've notice that while my CIPE VPN works, that SMB and NFS access of my
>>home network from my notebook is slow.  However, going the other way,
>>accessing file shares on my notebook, from my home lan is fine.  I'm
>>connecting from my notebook, via dialup ISP and cable modem to my home
>>network.
>>
>>Why is this problem in only one direction?  Is it due to the speed
>>difference between my home network and dial up modem?
>>
>>Any ideas?
>>
>>tnx jk
> 
> 
> 
> --
> Message sent by the [email protected] mailing list.
> Unsubscribe: mail [email protected], "unsubscribe cipe-l" in body
> Other commands available with "help" in body to the same address.
> CIPE info and list archive: <URL:http://sites.inka.de/~bigred/devel/cipe.html
> 



--
Message sent by the [email protected] mailing list.
Unsubscribe: mail [email protected], "unsubscribe cipe-l" in body
Other commands available with "help" in body to the same address.
CIPE info and list archive: <URL:http://sites.inka.de/~bigred/devel/cipe.html>