> On Tue, Nov 21, 2006 at 12:52:56AM +0100, Hubert Feyrer wrote:
> > On Mon, 20 Nov 2006, Matthias Scheler wrote:
> > >I've uploaded a 900MB file FTP over TCPv6 (using a kernel producing some
> > >extra debugging output when TSOv6 is used) and compared the SHA512 hashes
> > >of the source and destination file.
> > 
> > What was the time and cpu utilization difference (assuming that's the 
> > point of TSO)?
> 
> I'm not sure how to measure that properly. As a quick test I used "rcp"
> to transfer a 768MB file over IPv6 over Gigabit ethernet to "/dev/null"
> on the remote machine:
> 
> With TSOv6:
> 0.05s user 4.13s system 20% cpu 20.189 total
> 
> Without TSOv6:
> 0.08s user 4.33s system 21% cpu 20.447 total
> 
> Second run with TSOv6:
> 0.08s user 4.33s system 21% cpu 20.447 total
> 
> Those numbers don't look conclusive to me.

can you try netperf -t TCPIPV6_STREAM?

YAMAMOTO Takashi