One warm-up run and the median of three: on the Iris Xe the OpenVINO
rung lost to the CPU on the smallest detector in two probes of three,
because an idle integrated GPU takes a few runs to raise its clock —
warm, it is 5.8 ms against 9.5. Three warm-ups and the median of seven
took it in five probes of five (5.6–7.2 ms against 7.7–13.1). The extra
runs cost tens of milliseconds, once per fingerprint.