The performance of the CMS tracking

Track and vertex reconstruction in the CMS detector use the information from the silicon pixel and the silicon strip detectors. The track and vertex fitting algorithms are based on the Kalman filter approach. The performance of the tracking procedure is evaluated in terms of efficiency and parameter resolution. The vertex reconstruction performance is reported in terms of primary vertex resolution. Some results obtained with a partial/conditional track reconstruction, used for High-Level Trigger algorithms are also given.