This book constitutes the proceedings of the Third Technology Conference on Performance Evaluation and Benchmarking, TPCTC 2011, held in conjunction with the 37th International Conference on Very Large Data Bases, VLDB 2011, in Seattle, August/September 2011.

The 12 full papers and 2 keynote papers were carefully selected and reviewed from numerous submissions. The papers present novel ideas and methodologies in performance evaluation, measurement, and characterization.