message: [tf.data] Increase `num_elements_per_branch` attr for ChooseFastestBranchDataset in map_vectorization optimization so that experiment timing is more reliable.
diff: @@ -425,7 +425,7 @@ Status AddNewChooseFastestNode(const NodeDef* input_dataset_node,
  DCHECK_EQ(branches.size(), other_arguments_lengths.size());
  AddNodeAttr("Targuments", t_arguments, &choose_fastest_node);
  - AddNodeAttr("num_elements_per_branch", 10, &choose_fastest_node);
  + AddNodeAttr("num_elements_per_branch", 100, &choose_fastest_node);
  AddNodeAttr("branches", branches, &choose_fastest_node);
  AddNodeAttr("other_arguments_lengths", other_arguments_lengths,
  &choose_fastest_node);
  