Xperf Profile Overview
Applies To: Windows 8, Windows 8.1
A trace profile is a collection of settings about a specific type of trace. These profiles are not compatible for recording with Windows® Performance Recorder (WPR). You can gather and control these settings with a single command per operation. Most profiles are one of these two types: memory-based or file-based. Select the profile that matches the mechanism that you use for tracing: writing to a buffer in memory or writing to a file.
The following table describes the types of sessions.
| Session Type | Description |
|---|---|
InSequentialFile sessions |
These sessions are saved into a file sequentially, extending it until a preset maximum file size is reached. This behavior maps to the ETW sequential mode. |
InBuffer sessions |
These sessions save data in memory, overwriting the oldest data with the most recent data when the buffer is full. These sessions must be saved to a snapshot file for analysis. This behavior maps to the ETW buffering mode. |
Note
The file modes cannot be combined.