public void endClientOpSend(long duration, boolean failed) {
    _stats.incInt(clientOpSendInProgressId, -1);
    int endClientOpSendId;
    if (failed) {
      endClientOpSendId = clientOpSendFailedId;
    } else {
      endClientOpSendId = clientOpSendId;
    }
    _stats.incInt(endClientOpSendId, 1);
    _stats.incLong(clientOpSendDurationId, duration);
  }
The Statistics object that we delegate most behavior to
geode-core/src/main/java/org/apache/geode/internal/cache/PoolStats.java