testing throughput on a bonded NIC

Hi,


I have a machine with a bonded NIC. I am trying to determine whether
the bonding is doing anything for me. I have another machine, that is
identical, that does not have a bonded NIC.

I'd like to run a network throughput test on each of the machines that
will show me how the network is performing. In other words, I want to
know if un-bonding the NIC would hurt me or have no affect.


Both machines are being used as NFS servers. The bonded machine is
MUCH more heavily used, but the non-bonded node will also be heavily
used, eventually.


Any thoughts on this would be greatly appreciated.

- Thanks,


Todd

"Todd" <(E-Mail Removed)> écrivait news:1165959063.570281.324020@
79g2000cws.googlegroups.com:
> I'd like to run a network throughput test on each of the machines that
> will show me how the network is performing. In other words, I want to
> know if un-bonding the NIC would hurt me or have no affect.

You may try somethink like this :

http://www.iozone.org/

Regards

Todd <(E-Mail Removed)> wrote:
> I have a machine with a bonded NIC. I am trying to determine whether
> the bonding is doing anything for me. I have another machine, that
> is identical, that does not have a bonded NIC.

> I'd like to run a network throughput test on each of the machines
> that will show me how the network is performing. In other words, I
> want to know if un-bonding the NIC would hurt me or have no affect.

What bonding mode is being used?

> Both machines are being used as NFS servers. The bonded machine is
> MUCH more heavily used, but the non-bonded node will also be heavily
> used, eventually.

In broad handwaving terms, and with the exception of the "rr" bonding
mode, bonding will not allow a _single_ stream of traffic to run any
faster than before. It is the aggregate of the streams that is
increased via bonding. Are there _many_ clients accessing the NFS
server(s)? Are they on the same local LAN, or are they on the other
side of a router?

There's always netperf - the extent to which it simulates NFS traffic
depends on how you tell it to run. http://www.netperf.org/

rick jones
--
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