public BenchmarkSuite setScale(TimeUnit scale) {
    this.scale = scale;
    return this;
  }
Set scaling factor for displaying results.
When data is reported, all times are divided by scale functor.
Data is always collected in nanoseconds, so this can be used to present
data using different time units.
@param scale: scaling factor
@return this for chaining
standalone-metastore/metastore-tools/tools-common/src/main/java/org/apache/hadoop/hive/metastore/tools/BenchmarkSuite.java