# Comparison Diagrams

Comparison diagrams allow you to compare the response times of several test runs.

\
This is commonly used to visualize tuning efforts; that is, "before and after" tuning of the webserver. In contrast, to load curve diagrams, these comparisons of test runs can be made with the same number of users; however, this is not mandatory. You can compare any test runs as long as all test runs have used the same name for the web pages (same text for all page break comments).

### Comparison Diagram Types <a href="#comparisondiagrams-comparisondiagramtypes" id="comparisondiagrams-comparisondiagramtypes"></a>

* Analysis Load Test Response Time Comparison
* Performance Overview
* Session Failures


---

# Agent Instructions: 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:

```
GET https://docs.apica.io/platform-docs/zebratester-scripting/zebratester-user-guide/5.-analyzing-results/comparison-diagrams.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.