## Overview

The Errors column shows the total number of errors that occurred during the loading of a page (Total).

The Runtime column shows the average, the minimum and maximum runtime encountered, and the standard deviation of all data within that series. The Runtime Segmentation shows several runtime segments and the number of pages within the segment's definition.

If the runtime of the test case is shorter than a displayed time period, for instance, if the test runtime was 30 minutes and the time period is given in hours, then the numbers are a linear projection. That means they show a possible outcome of a longer test run, assuming load and application behavior remain the same. The Runtime Segmentation column helps you evaluate SLA and test success definitions.

## Bandwidth

The Bandwidth tab shows the incoming and outgoing bandwidth per page.

The Bytes Sent column comprises all data sent out of the application including overhead such as HTTP(S) headers and SSL protocol data. The Bytes Received column includes all received data and the connected overhead. As the data is measured right above the socket level and before it gets decoded by the application, any compressed traffic is measured as seen by the network layer. The data size you see is not the expanded data as seen by the DOM parser.

## Network Timing

The Network Timing tab displays all low-level network timing data that has been measured on socket level. Each measurement point includes the minimum and maximum times and the mean of all gathered data. The following measurement points are shown:

- Connect Time: Time needed to establish a connection to the other system.
- Send Time: Time needed to send the request to the other system.
- Server Busy Time: Time spent waiting from sending the last bytes to receiving the first bytes.
- Receive Time: Time spent receiving data from the first to the last bytes received.
- Time to First Bytes: Total time from the connection start until the first bytes are received. Includes Connect, Send, Server Busy, and Receive Time.