On Jan 21, 2014, at 9:30 AM, "E.S. Rosenberg" <esr+hpdd-discuss@mail.hebrew.edu>

 wrote:

> Is there any good stress testing software for lustre?
> Right now I am just using dd on the clients and seeing how much throughput I am getting but I was hoping there is maybe something a bit better...

In my experience, dd is useful as a quick test to make sure there is nothing seriously broken on the client.  However, if the client is connected to a fast interconnect, dd may get bottlenecked by its single-threaded nature.  I often use xdd to run multithreaded tests on a single client.  xdd can also be used for multi-client tests, but I usually use IOR for that (if MPI is installed).

--
Rick Mohr
Senior HPC System Administrator
National Institute for Computational Sciences
http://www.nics.tennessee.edu