dotTrace 2016.3 Help

Events

The Events window shows the list of events (JIT, File I/O, SQL Requests, Incoming HTTP Requests) that take place on the selected time intervals. By default, events are shown in the order they occurred.

Use the Events window as any other event log - for analyzing complex cases and bugs when the data provided by other filters is not enough. For example, using filters, you have found that your application writes to a particular file 10 times and writing takes too much time. With the Events window, you can go even deeper and find out which of those 10 events have the longest duration.

To open the Events window:

  • Select the menu item View | Events.

The table of events consists of the following columns:

  • Start. Event starting time point (time is counted from the beginning of the profiling session).
  • Event. Detailed event info. For example, for a file I/O event, the cell will contain the type of I/O operation, data size, file name and file path.
  • Call Info. The name of the method that originates the event.

Showing / Hiding Events by Type

Sometimes, it may be useful to leave in the table only events of a particular type, e.g. only HTTP requests.

To view events of a particular type:

  • Click on the corresponding button at the top of the window: File Operations, Incoming HTTP Requests, SQL Requests, JIT, or Exceptions. If you need to view events of more than one type, click on the corresponding buttons while holding the Ctrl key.

After this, all events of other types will be hidden.

Finding Events

You can find particular events based on the content of the Event column.

To find an event:

  1. Place cursor to the Search Events field at the top of the Events window.
  2. Start typing the info about the event you want. For example, for the file I/O event this could be the type of the file I/O operation and/or file name.

After this, all events that do not match your search request will be hidden.

Viewing Event Details

The Events window allows you to get more information about a particular event, e.g., stack trace data.

To view details for a particular event:

  • Click on the event you need.

After this, the additional data will be shown in the bottom part of the Events window.

Last modified: 20 January 2017