public void endRead(long start, long end, long bytesRead) {
    stats.incLong(readsId, 1);
    stats.incLong(readTimeId, end - start);
    stats.incLong(bytesReadId, bytesRead);
  }
Invoked after data has been read from disk

@param start The time at which the read operation started
@param bytesRead The number of bytes that were read
geode-core/src/main/java/org/apache/geode/internal/cache/DiskRegionStats.java