[Samba] Dropped frames streaming video to samba

[Jeremy Allison]

On Wed, Apr 19, 2006 at 05:31:50PM -0400, Matt London wrote:
> Hi,
> 
> We've got a setup here with a samba server in front of a fibrechannel array. It's a pretty vanilla samba setup exporting an xfs filesystem.
> 
> The box is an opteron 265 with 4G RAM and a QLogic QLA2312 HBA running SLES9.
> 
> We can dd an 8G file to a share from a windows workstation in just over 2 minutes (about 65MB/s) and dd back in about 4 minutes.
> 
> Local disk performance in the machine gives about 195MB/s to disk and 120MB/s from disk.
> 
> The problem comes when trying to capture video using Adobe Premiere 6.5 and write straight to the share - we get a *lot* of dropped frames (somewhere in the region of 25%+). Yet the same job to an Adaptec Snap server (which is samba on adaptec's guardianOS) works fine, even through it can only sustain 10MB/s.
> 

Well it's the same codebase so it should be just as fast :-).
Firstly, what version of Samba are you running ? Secondly,
what do you have in your smb.conf ?

Jeremy.