OpenMail File System Workloads Analysis and Characterization

With the prevalence and increasing importance of electronic mail in people's daily life, how to ensure the performance of entail system has become a challenging issue to the email service providers. A good understanding of email file system work-loads is very important to provide useful insight into the design of email system for performance gains. In this paper; the empirical contributions of various traffic characteristics of email file system are studied, through analyzing the traces collected from an OpenMail file system. The results of the study, especially the correlation study results of I/O inter-arrival times, show that the self-similarity, study is quite necessary and meaningful to email traffics. Some statistical evidences are provided to demonstrate the existence of self-similarity in the email traffics.