The Brazilian Public Software Portal (SPB) provides a social and scientific service through a software repository. Given the importance of this service improvement opportunities are observed through proposals to assess the quality of the software residing on the portal, since it does not have a quality control and auditing for submissions to the software. The aim of this paper is to present existing performance issues in SPB's software by analyzing performance anti-patterns, leading to a process for the collection and analysis of these. The proposed process is the result of an empirical study based on the analysis of data provided by specialized performance measurement tools that aims to contribute to and enrich the knowledge related to performance of stored systems in SPB.