More interesting NetBench anomalies ...

Richard Sharpe rsharpe at
Wed Jul 31 08:01:02 GMT 2002

On Wed, 31 Jul 2002, Andrew Theurer wrote:

> > 3. The report claims 163.471 MBytes of data Transferred, yet a full
> > capture is larger than 334 MBytes (that capture dropped a few frames).
> Generally my Netbench reported peak throughput is about 10-15% lower than
> what I see in my sar report.  The only thing that comes to mind is that the
> numbers NetBench reports are based on file data, and not all network data
> (header, etc), but I can't see how this would be 2x difference.  I would
> generally expect whatever Netbench reports, the capture would be smaller due
> to client caching.

I hope to find out today by asking Samba's profiling stuff how many reads 
and writes were seen and how many bytes were read and written.

Richard Sharpe, rsharpe at, rsharpe at, 
sharpe at

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