No subject

# nc host1 3000 | pv >/dev/null

The command "pv" is will show the throughput it's getting on stdin.  "cpipe"
would also work.

On 100 mbps I usually get about 10 MB/sec.


On Wed, Dec 16, 2009 at 4:13 PM, Dave Rowe <dave at roweware.com> wrote:

> Box A) Quad-core @ 2.5GHz - 4GB RAM
> Box B) P4 (HT) @ 3.06GHz - 4GB RAM
>
> Unsure if there is offloading capabilities?  Not sure how I'd check...
>
> On Wed, Dec 16, 2009 at 4:05 PM, Charles Bird <cbird.omaha at gmail.com>
> wrote:
>
> > What hardware u running? Like what speed is your CPU, does your network
> > adaptor have any offloading capabilites?
> >
> > The SSH tunnel itself has alot of network overhead, but  would think that
> > on
> > a 100Mb link, you would get a lil more than that.
> >
> > I've usually seen non ssh transfers at 70-83Mbps over 100Mb with Linux's
> > dafault stack.
> >
> >
> >
> >
> >
> > On Wed, Dec 16, 2009 at 4:56 PM, Dave Rowe <dave at roweware.com> wrote:
> >
> > > Okay, I need a little schooling here.  Googling for network tweaks
> brings
> > > articles from the early 2000's, so things have (probably) changed.
> > >
> > > I have 2 linux boxes, sitting on the same switch (100Mbps).
>  Transferring
> > a
> > > large (50MB) file between the 2 via SSH seems to run abnormally slow
> for
> > > being on the same switch.  With a couple tests, I seem to be getting
> > 2MB/s
> > > (big B).  Which, while _okay_, its not a huge deal, but seems slow.
> > >
> > > Box A - Debian 5.0 - 2.6.26-2-amd64
> > > Box B - ArchLinux - 2.6.31
> > >
> > > Would hard-disk speed be a significant factor here?  Both are SATA
> > >
> > > Any ideas?
> > >
> > > -Dave
> > > _______________________________________________
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