message: [tf.data] Increase the roll out percentage of optimization `map_parallelization` to 5%.
diff: @@ -85,7 +85,7 @@ void OptimizeDatasetOp::MakeDataset(OpKernelContext* ctx, DatasetBase* input,
  // clang-format off
  absl::flat_hash_map<string, uint64> live_experiments = {
  {"enable_gradient_descent", 100},
  - {"map_parallelization", 1}
  + {"map_parallelization", 5}
  };
  // clang-format on
  auto hash_func = [](const string& str) { return Hash64(str); };
  