code: @Override
     public float getAverageGetTime() {
        long unsupportedCacheGetTotalMillis = TimeUnit.NANOSECONDS.toMillis(unsupportCacheGetTotalTime.longValue());
        return TimeUnit.MILLISECONDS.toMicros(mapToSpecValidStat(
              cache.getStats().getAverageReadTime() + unsupportedCacheGetTotalMillis));
     }
docs: The mean time to execute gets.
  <p/>
  In a read-through cache the time taken to load an entry on miss is not included in get time.
  
  @return the time in µs