File Access Profiler module

The File Access Profiler module displays information about the file activity in your application, such as the number of read or write operations Unity performs or the number of file handles open, either for a specific frame or across all frames in a capture. You can use this information to help determine how efficiently your application performs file operations. This module can capture information about file operations on any file within your built application’s folder structure, or within your Unity project folder if you run the Profiler in the Unity Editor. This module is not enabled by default. To enable the File Access Profiler module, open the Profiler window, select the Profiler Modules dropdown menu, and toggle the File Access checkbox.

图表类别

The File Access Profiler module’s chart is divided into five categories. To change the order of the categories in the chart, drag and drop them in the chart’s legend. You can also click a category’s colored legend to toggle its display on or off. For more information on how to use the Profiler window, see Getting started with the Profiler window. This module doesn’t collect information about unsuccessful file operations. If a file operation attempt is unsuccessful, Unity displays an error.

模块详细信息面板

When you select a frame in the File Access Profiler module, the module details pane displays detailed information about files that Unity accessed during the capture. The File Access Profiler module has two views:

• The File Summary view provides a summary of all file activity for each file Unity accesses during the selected frame setting.
• The Accesses view displays each file access operation in the data set in the order that they occurred.

Use the dropdown menu at the top-left of the details pane to toggle which view is active. By default, the File Summary view is active.

Both views can display information for either a single selected frame, or for all frames in the capture. Use the second dropdown menu at the top-left of the details pane to choose between a single frame or all frames. This module doesn’t populate the details pane automatically. Instead, you need to select the Analyze Markers button at the top of the details pane to populate the view with data.

File Summary view

The File Summary view displays a summary of all file access operations that happened to each file during the capture. One entry in the table represents the full summary for a single file.

The table below describes all possible columns that the File Summary view table can display. Not all columns are enabled by default; to enable or disable a column, right-click anywhere in the row that contains the column headers to open a menu. Use this menu to toggle any column on or off.

Accesses view

The Accesses view provides detailed information about every file access operation in the capture. Each entry in the table in the details pane of the Profiler represents a single file access operation to a single file. The below table describes all possible columns that the Accesses view can display.

You can right-click on any of the file access markers to open a sub-menu with additional options to explore the data. The available options are as follows: