[Samba] Samba fileserver limited to 50 MB/s on gbit

Leo B. spam-goes-to-dev-null at gmx.net
Sat Dec 9 13:54:56 GMT 2006


 

> -----Original Message-----
> From: Nguyen.Kim.Huy at vn.nec-tokin.com 
> 
> On Tue, 21 Nov 2006 08:05:38 +0100
> "Leo B." <spam-goes-to-dev-null at gmx.net> wrote:
> 
> > 
> > > -----Original Message-----
> > > From: John Drescher
> > > On 11/20/06, Nguyen Kim Huy <huy at vn.nec-tokin.com> wrote:
> > > >
> > > >
> > > > It seems bottleneck of harddisk
> > > >
> > > > That was my first reaction as it is difficult to sustain 50MB/s 
> > > > file
> > > system transfers (unless the files are large and a raid is
> > > used) but he said the file was cached and also if it was 
> waiting for 
> > > the disk it would have shown up as wa time in top.
> > 
> > Exactly. I read the file several times on the server until 
> it was cached.
> > Notice also that the local transferrate is like 500 MB/s then.
> > 
> > Leo B.
> 
> 
> But your client computer does not use cache?.
> Your copy a file on samba server to client computer HDD,
>   so it may still have posibility of harddisk bottle neck at 
> your client computer!
> 

No, I wrote a client program which does the reading benchmark
without writing anything to the harddisk, it just reads the 
file from the server and shows the speed. No bottleneck there.
I also assured that the file is not cached on client side.

Leo B.



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