Re: [HPDD-discuss] Good stress testing for lustre

On Jan 21, 2014, at 9:30 AM, "E.S. Rosenberg" < esr+hpdd-discuss(a)mail.hebrew.edu&gt; 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