Performance of the LHCb Detector during 2010-2011 data taking

The status and performance of the LHCb detector during the physics LHC physics run is described. The LHCb detector has a number of notable features including: 12 micron resolution in the transverse plane on 30-35 track primary vertices, pion and kaon separation from 1 to 100 GeV, and 1 MHz full readout of all subsystems. The detector is being operating above its design luminosity and is comprised of a silicon vertex detector, silicon and straw-tube tracking systems, ring imaging Cherenkov particle identification systems, electromagnetic and hadronic calorime-try, and muon systems. Hardware and software based trigger levels are utilised to efficiently select leptonically and hadronically decay beauty and charm hadrons. The alignment, tracking and particle identification performance will be discussed.