protected ServerLoad getLoad() {
    ServerLoad load = probe.getLoad(metrics);
    if (load == null) {
      load = new ServerLoad();
    }
    return load;
  }
Keeps track of the clients that have added a queue since the last load was sent to the
server-locator.

@since GemFire 5.7
geode-core/src/main/java/org/apache/geode/cache/server/internal/LoadMonitor.java