  We present a tuneup protocol for qubit gates with tenfold speedup over
traditional methods reliant on qubit initialization by energy relaxation. This
speedup is achieved by constructing a cost function for Nelder-Mead
optimization from real-time correlation of non-demolition measurements
interleaving gate operations without pause. Applying the protocol on a transmon
qubit achieves 0.999 average Clifford fidelity in one minute, as independently
verified using randomized benchmarking and gate set tomography. The adjustable
sensitivity of the cost function allows detecting fractional changes in gate
error with nearly constant signal-to-noise ratio. The restless concept
demonstrated can be readily extended to the tuneup of two-qubit gates and
measurement operations.
