Hi, Is there an easy way to obtain statistics of user applications usage: who invoked what; for how long; what resources were used; etc. I am thinking of some kind of a super-ps that will integrate and summarize the usage profile during a long period of time - not just a snapshot. Background: I have a RH 7.3 machine that serves as the central node for a cluster that runs various scientific user applications: mysql, matlab, and various bioinformatics tools. We are considering upgrading the OS (to centos :-), or embedding it in our institute grid. Having detailed information on the usage profile will help us to decide about the strategy, and to implement once decided. Thanks, Itay -- Itay Furman | sysadmin for Pilpel lab itayf at nospammail.net