Discover how to effectively use jsPerf for JavaScript performance testing in this JSConf EU 2011 talk. Learn about benchmarking pitfalls, the importance of testing across multiple browsers, and six key points for accurate results. Explore common problems with tests, proper test case setup, variable resetting, and handling asynchronous operations. Gain insights into comparing methods, dealing with test randomness, and avoiding unexpected browser features that can skew results. Master the art of creating reliable JavaScript benchmarks to optimize your code performance.