[Samba] Re: Am I getting the best performance?

[aragonx]

aragonx <aragonx at dcsnow.com> wrote in
news:Xns9341628C76656aragonxdcsnowcom at 80.91.224.249: 

> John H Terpstra <jht at samba.org> wrote in
> news:Pine.LNX.4.50.0303141847330.5995-100000 at dp.samba.org: 
> 
>> On Fri, 14 Mar 2003, Me wrote:
>> 
>>> > Did you check the impact of increasinf the SO_RECVBUF and
>>> > SO_SNDBUF to 128KByte?
>>>
>>> No I have not.  I will try it though.  I have 512MB of RAM in my
>>> server so I'm not too worried about memory.
>> 
>> Let me know what you find.
> 
> Okay, here is a list of my recient test results.  If you want more,
> just let me know.
> 
> Date     Source     Destination     Amount of Data in megabytes    
> Time in seconds     Speed of Xfer in mb/min     Speed of Xfer in
> MB/sec 
> 
> Used speedtest.tar.bz2.                                   
> 3/17/03     /dev/hdd     wyonker     1972.375     328      360.80     
> 6.01     
> 
> I did an ftp transfer as a baseline test.  Booted to my Linux 
> partition.                                   
> 3/17/03     /dev/hdc     wyonker     1972.375          632.40     
> 10.54     
> 
> Used speedtest.tar.bz2                                   
> 3/17/03     /dev/hdc     nyonker     1972.375     268      441.58     
> 7.36     
> 
> Another FTP transfer                              
> 3/17/03     /dev/hdc     nyonker     1972.375     199      606.50     
> 10.11 
> 
> Used speedtest.tar.bz2.  Changed to socket options = TCP_NODELAY 
> SO_RCVBUF=131072 SO_SNDBUF=131072                              
> 3/17/03     /dev/hdc     nyonker     1972.375     263      449.97     
> 7.50 
>                               
> Used directory Changed to socket options = TCP_NODELAY
> SO_RCVBUF=131072 SO_SNDBUF=131072                              
> 3/17/03     /dev/hdc     nyonker     2,026      288      422.04     
> 7.03 
> 
> Used speedtest.tar.bz2.  Changed to socket options = TCP_NODELAY 
> IPTOS_LOWDELAY SO_RCVBUF=8192 
> SO_SNDBUF=8192                              
> 3/17/03     /dev/hdc     nyonker     2,026      277      438.80     
> 7.31 
> 
> Used speedtest directory.  Changed to socket options = TCP_NODELAY 
> IPTOS_LOWDELAY SO_RCVBUF=8192 
> SO_SNDBUF=8192                              
> 3/17/03     /dev/hdc     nyonker     2,026      286      424.99     
> 7.08 
> 
> 
> 
> 7.5MB/sec doesn't seem too bad.  But I still think I can do better.  I
> may lower my standards a little.  If I can get to 8 or 8.5MB/sec I'll
> be happy.  I still think I should be able to do 9MB/sec.  FTP can do
> 10.5MB/sec.  Does Samba really have 30% more overhead than FTP? 
> 
> File locking and such are not issues since I've been doing test with
> both directories of files and one big zip.
> 
> Any other suggestions would be much appreicated.
 
Is anyone following this thread?  

If so, here is some more information.  I found it rather supprising.

Upgraded to 1.3ghz Duron processor.  Prior tests were on a 900mhz Duron.
Used speedtest.tar.bz2.  Changed to socket options = TCP_NODELAY 
SO_RCVBUF=32768 SO_SNDBUF=32768						
3/17/03	/dev/hdc	nyonker	1972.375	260 	455.16 	7.59

Used speedtest.tar.bz2.  Changed to socket options = TCP_NODELAY 
SO_RCVBUF=32768 SO_SNDBUF=32768						
3/17/03	/dev/hdc	nyonker	1972.375	271 	436.69 	7.28

Used speedtest directory.  Changed to socket options = TCP_NODELAY 
SO_RCVBUF=32768 SO_SNDBUF=32768						
3/17/03	/dev/hdc	nyonker	2,026 	281 	432.55 	7.21

If anyone is reading this and find it useful, let me know and I will keep 
posting my results.  If I don't get a response, I won't bother.