public long computeFileSizeTotal() {
    long byteCount = 0;
    for (FileResultModel file : files) {
      byteCount += file.getLength();
    }
    return byteCount;
  }
Calculates the total file size of all files associated with this result.

@return Total file size.
geode-gfsh/src/main/java/org/apache/geode/management/internal/cli/result/model/ResultModel.java