> For the complete documentation index, see [llms.txt](https://docs.pentaho.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pentaho.com/pdia-data-integration/9.3-data-integration/pdi-transformation-steps-reference-overview/single-threader/options-single-threader/options-tab.md).

# Options tab

![Single Threader](/files/sDoX7yoFFTsnf9YDJZuX)

This tab contains the following fields:

| Option              | Description                                                                                                                                                                                 |
| ------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Injector step**   | Specify the step that that satisfies the Mapping Input Specifications (filename, type, length, and precision) by entering its name or clicking **Get**.                                     |
| **Retrieval step**  | Specify the step from which the data is retrieved by entering its name or clicking **Get**.                                                                                                 |
| **Batch size**      | Specify when processing of a chunk of data starts based on the number of rows received, which is 100 by default. Alternately, specify **Batch time (ms)** to process based on a time delay. |
| **Batch time (ms)** | Specify when processing of a chunk of data starts based on the specified time delay, instead of **Batch size**.                                                                             |


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.pentaho.com/pdia-data-integration/9.3-data-integration/pdi-transformation-steps-reference-overview/single-threader/options-single-threader/options-tab.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.