docs: public IpcLogEntry markStart() {
      if (registry != null) {
        inflightId = getInflightId();
        int n = logger.inflightRequests(inflightId).incrementAndGet();
        registry.distributionSummary(inflightId).record(n);
      }
  
      startTime = clock.wallTime();
      startNanos = clock.monotonicTime();
      return this;
    }