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Hi,
This information comes from Dan Yocum, slightly reformated and forwarded
with permission.
Note that while the cluster was pushing 9.6Gbps, the linux director was
doing a negilgable ammount of work, which seems to indicate that LVS
could push a great deal more traffic given sufficient real-servers and
end-users.
--
Horms
----- Forwarded message from Dan Yocum -----
Horms wrote:
> On Mon, Nov 21, 2005 at 01:51:27PM -0600, Dan Yocum wrote:
>
> > Horms,
> >
> > Just a quick update on the LVS-DR server I used for for our bandwidth
> > challenge last week at SuperComputing: The director saw an increase of
> > around 120Kbps when we ran our bandwidth challenge tests. At times the
> > aggregate bandwidth out of the 21 real servers was around 9.6Gbps, so
> > the amount of traffic on the director was negligible. There were 41
> > clients grabbing the data from the servers, each machine ran a gridftp
> > client with 16 parallel streams. Packet size was standard (1500), so no
> > jumbo frames.
> >
> > The URL for the mrtg graphs are here:
> >
> > http://m-s-fcc-mrtg.fnal.gov/~netadmin/mrtg/mrtg-rrd.cgi/s-s-fcc1-server/s-s-fcc1-server_3_3.html
> >
> > The test occurred on Wed of last week in the last half of the day.
>
> That is awsome, can I pass this information onto lvs-users?
> (Unfounately its a closed list)
Sure, no problem. One of the BWC participants put a page up here if
you're interested in the details of the other participants:
http://www-iepm.slac.stanford.edu/monitoring/bulk/sc2005/hiperf.html
----- End forwarded message -----
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