  A new type of resistive plate chamber (RPC) is under development using
thin-film resistive electrodes based on diamond-like carbon (DLC). Planned to
be put on the path of high-intensity low-momentum muon beam of the MEG II
experiment, this detector is required to be high-rate capable and ultra-low
mass. Using a prototype detector with 2 cm $\times$ 2 cm size and 0.1 % $X_0$
material budget, performance studies were conducted for MIP detection
efficiency, timing resolution and high rate capability in low-momentum muon
beam. In this paper, the measured performance is presented including the result
with low-momentum muon beam at rate up to 1 $\mathrm{MHz/cm^2}$. Based on the
result, the expected performance of the full-scale detector in the MEG~II
experiment is also discussed.
