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

From: "E.S. Rosenberg" <esr+hpdd-discuss@mail.hebrew.edu<mailto:esr+hpdd-discuss@mail.hebrew.edu>> Date: Tuesday, January 21, 2014 at 6:30 AM To: "hpdd-discuss@lists.01.org<mailto:hpdd-discuss@lists.01.org>" <hpdd-discuss@lists.01.org<mailto:hpdd-discuss@lists.01.org>> Subject: [HPDD-discuss] Good stress testing for lustre Hi all, 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... Thanks, Eli Iozone has a multi-client option which makes a good stress test. To really exercise the filesystem, you need a tool which can spawn load on multiple clients. IOR is quite good for this. If you are after stress rather than performance, simply spawning as much random work as you possibly can is also good. cliffw