[olug] SMB transfer speeds

[Vincent.Raffensberger at dtn.com]

Just a wild guess here:
Are you getting network errors?  It could be something as simple as 
auto-negotiation not working right.
You can force modes when you load your driver, for example:

[user at host ~]$ cat /etc/modules.conf
alias eth0 e100
alias eth1 e100
alias eth2 3c59x
alias eth3 3c59x
options e100 RxDescriptors=1024,1024 e100_speed_duplex=4,4
options 3c59x max_interrupt_work=96 rx_copybreak=384 options=4,4 
full_duplex=1,0

# References:
# 3c59x media_type (options=):
# ( 0=10baseT; 4=100base-TX; 7=EEPROM default; 8=Autonegotiate )
# e100_speed_duplex= (media_type and duplex):
# ( 1=10half;2=10full;3=100half;4=100full )
#EOF



John DiMartino <john_dimartino at mac.com> 
Sent by: olug-bounces at olug.org
04/27/2004 10:07 AM
Please respond to
Omaha Linux User Group <olug at olug.org>


To
Omaha Linux User Group <olug at olug.org>
cc

Subject
Re: [olug] SMB transfer speeds






I tested with FTP and get even slower rates.  I am starting to think 
that I might have twisted a cable or something physical because the 
configuration of the servers is almost identicle.

I'll let you know what I find.

Thanks,
John


Terry wrote:

> Hi John,
> 
> 1) Do you notice same speeds with FTP? (try to be
> accurate here with your transfer rates and test with a
> very large file 100MB or larger)
> 2) Try this in your smb.conf:
> socket options  = TCP_NODELAY IPTOS_LOWDELAY
> SO_SNDBUF=4096 SO_RECBUF=4096
> 3) Do you have oplocks turned on?  If so, turn them
> off. (just for testing)
> 
> Terry
> 
> 
> --- John DiMartino <john_dimartino at mac.com> wrote:
> 
>>Hi,
>>
>>I recently broke then rebuilt my server.  Everything
>>is the same except 
>>that now I only get 30 mbit/s versus 60-70 mbit/s
>>over my 100mbit LAN 
>>using the most recent version of samba 3.  Any ideas
>>on what would cause 
>>that change?
>>
>>Thanks,
>>John
>>
>>_______________________________________________
>>OLUG mailing list
>>OLUG at olug.org
>>http://lists.olug.org/mailman/listinfo/olug
> 
> 
> 
> =====
> Terry
> 
> 
> 
> 
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