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TSX Hotspots Analysis Inside Transactions

Use the TSX Hotspots analysis on Intel® processors supporting Intel Transactional Synchronization Extensions (Intel TSX) to identify the most time-consuming code inside transactions.

This analysis type uses the precise clockticks hardware event and helps identify performance-critical program units inside transactions.

To use the TSX Hotspots analysis type, explore:

Configuration Options

To configure options for the TSX Hotspots analysis:

Prerequisites: Create a project and specify an analysis target.

  1. Click the (スタンドアロン GUI)/ (Visual Studio IDE)New Analysis toolbar button.

    The Analysis Type window opens.

  2. From the left pane, select Microarchitecture Analysis > TSX Hotspots.

    The TSX Hotspots configuration pane opens on the right.

  3. Configure the following options:

    Collect stacks check box

    Enable advanced collection of call stacks and thread context switches.

    The default value is false.

    Analyze user tasks, events, and counters check box

    Analyze the tasks, events, and counters specified in your code via the ITT API. This option causes a higher overhead and increases the result size.

    The default value is false.

    Details button

    Expand/collapse a section listing the default non-editable settings used for this analysis type. If you want to modify or enable additional settings for the analysis, you need to create a custom configuration by copying an existing predefined configuration. VTune Amplifier creates an editable copy of this analysis type configuration and locates it under the Custom Analysis section on the left pane.

  4. Click Start to run the analysis.

Viewpoints

Use the TSX Exploration viewpoint to analyze the Precise Clockticks metric values and identify the most time-consuming program units inside transactions. The viewpoint includes the following windows:

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