public void endIndexUpdate(long start) {
    long ts = getTime();
    stats.incLong(indexUpdateTimeId, ts - start);
    stats.incLong(indexUpdateInProgressId, -1);
    stats.incLong(indexUpdateCompletedId, 1);
  }
@param start the timestamp taken when the operation started
geode-core/src/main/java/org/apache/geode/internal/cache/CachePerfStats.java