[Samba] Samba ignoring socket options?

[Steve Thompson]

On Thu, 28 Aug 2008, Jeremy Allison wrote:

> On Thu, Aug 28, 2008 at 05:31:50PM -0400, Steve Thompson wrote:
>> BTW, I get 43 MB/s with a single 12 MB file on GbE without any socket
>> options; linux -> linux.
>
> Ok, that's the same as the Windows systems right ? Should be
> higher than that. Ok, at least we've removed the black box
> from the system - everything can be examined in open source
> code now. You should be able to get 100MB/sec (or close to
> it) I think.

*sound of stick hitting head*

My destination filesystem was an NFS-mounted volume. Copying instead to a 
local software RAID-1 volume, I get 63 MB/sec, which I think is quite 
reasonable. The systems were quite busy at the time. Samba 3.0.24 on 
CentOS 4.6/x86_64.

What is also interesting is that changing 'socket options' to a variety of 
different values has no effect whatsoever on the performance (and I did 
restart smbd each time).

Steve