Hello: I am wondering if I can get some more information on the gpfsperf tool for baseline testing GPFS. I want to record GPFS read and write performance for a file system on the cluster before I enable DMAPI and configure the HSM interface. The README for the tool does not offer much insight in how I should run this tool based on the cluster or file system settings. The cluster that I will be running this tool on will not have MPI installed and will have multiple file systems in the cluster. Are there some best practises for running this tool? For example: - Should the number of threads equal the number of NSDs for the file system? or equal to the number of nodes? - If I execute a large multi-threaded run of this tool from a single node in the cluster, will that give me an accurate result of the performance of the file system?
Any feedback is appreciated. Thanks. Sincerely, Scott Batchelder Phone: 1-281-883-7926 E-mail: [email protected] 12301 Kurland Dr Houston, TX 77034-4812 United States
_______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
