'median' — median of strictly-positive deltas (default). Robust to
occasional OS-scheduling jitter and GC spikes at the cost of a slight
upward bias on noisy hosts.
'min' — minimum of strictly-positive deltas. Captures the lowest
observed call cost.
'p05' — 5th percentile of strictly-positive deltas. A compromise
between robustness and tightness.
Estimator strategy for calibrateTimerOverhead.
'median'— median of strictly-positive deltas (default). Robust to occasional OS-scheduling jitter and GC spikes at the cost of a slight upward bias on noisy hosts.'min'— minimum of strictly-positive deltas. Captures the lowest observed call cost.'p05'— 5th percentile of strictly-positive deltas. A compromise between robustness and tightness.