[Samba] Win2K/XP, oplocks, and readahead.

[Peter Godman]

On Wed, 19 Feb 2003 bkrusic at yahoo.com wrote:

> > socket options = TCP_NODELAY IPTOS_LOWDELAY
> > SO_KEEPALIVE SO_RCVBUF=65536
> > SO_SNDBUF=65536
> 
> Hi,
> 
> First, we are in a similar env.  Second, are yiu using
> testparm to see what config Samab is running at?  You
> may find more or less tweaking is needed (a delightful
> surprise).  Third, what are your xfser times in terms
> if say 1GB file size?
> 
> I had to force this;
> max xmit = 65535
> 
> And my settings of special interest are;
> SO_RCVBUF = 262144
> SO_SNDBUF = 262144
> 
> I didn't manipulate the TCP window size studio wide as
> I didn't see an increase when done on my test bed PC.
>  oplocks are on by def as per testparm outout
> (v2.2.7).

Hi there:

I've tried RCVBUF and SNDBUF as 262144, to no avail.  Max xmit is set to
65535 according to testparm.  At a desired bitrate of 500Mbit/sec I wish
to be able to transfer a 1GB file in 16 seconds.

Thanks for the info.  How long are your transfer times?

Cheers,
Pete