void onJobResultProcessingComplete() {
    long jobResultProcessingCompleteTimeMs = System.currentTimeMillis();
    cryptoJobMetrics.jobResultProcessingTimeMs.update(
        jobResultProcessingCompleteTimeMs - jobResultProcessingStartTimeMs);
    cryptoJobMetrics.roundTripTimeInMs.update(jobResultProcessingCompleteTimeMs - jobSubmissionTimeMs);
  }
Signifies that the job callback processing has completed
ambry-router/src/main/java/com/github/ambry/router/NonBlockingRouterMetrics.java