Measuring and understanding computer resource utilization in CMS
Julia V. Andreeva, S. Belforte, S. Blyweert, K. Bloom, David E. Evans, Thomas H. Kress, J Letts, M. Maes, S. Padhi, Uttiya Sarkar, Frank Würthwein · Journal of Physics Conference Series · 2011
Significant funds are expended in order to make CMS data analysis possible across Tier-2 and Tier-3 resources worldwide. Here we review how CMS monitors operational success in using those resources, identifies and understands problems, monitors trends, provides feedback to site operators and software developers, and generally accumulates quantitative data on the operational aspects of CMS data analysis. This includes data transfers, data distribution, use of data and software releases for analysis, failure analysis and more.