  The Online Silicon Vertex Tracker is the new CDF-II level 2 trigger processor
designed to reconstruct 2-D tracks within the Silicon Vertex Detector with high
speed and accuracy. By performing a precise measurement of impact parameters
the SVT allows tagging online B events which typically show displaced secondary
vertices. Physics simulations show that this will greatly enhance the CDF-II
B-physics capability. The SVT has been fully assembled and operational since
the beginning of Tevatron RunII in April 2001. In this paper we briefly review
the SVT design and physics motivation and then describe its performance during
the early phase (April-October 2001) of run II.
