Hi All: I recommend "IOzone" for the performance test. It is an useful tool to test DFS such as GlusterFS. Here is the link: http://www.iozone.org/ But most tools now are for the local file system(by mounting the directory). I cannot test the file systems which only provide APIs. In other words, I can only test by writing a program myself. Does anyone know if there is a file system tool which can run test by APIs? Best Regards, Sylar Shen Broadband Network Laboratory TEL:886 3 424-4698 Mobile:886 928567022 E-mail:kimula at cht.com.tw -----Original Message----- From: gluster-users-bounces at gluster.org [mailto:gluster-users-bounces at gluster.org] On Behalf Of Mukund Buddhikot Sent: Friday, December 24, 2010 10:05 AM To: gluster-users at gluster.org; buddhikotm at gmail.com Subject: Workloads for GlusterFS Hello Gluster Folks, One can use dd, iometer, "internal" data sets and OLTP workloads for performance testing of GlusterFS. Is there a "standardized" workload/benchmark for DFS such as GlusterFS.. With Best Regards, -Mukund.