@Override
  public void setEvictionMaximum(int maximum) {
    EvictionController evictionController = getEvictionController();
    if (evictionController != null) {
      evictionController.setLimit(maximum);
    }
  }
Returns the number of LRU evictions done by this region.
geode-core/src/main/java/org/apache/geode/internal/cache/LocalRegion.java