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Creating a PCIe Analysis Task

Prerequisites

  • No nodes are in the Offline state.
  • The system kernel supports ftrace collection.

Procedure

  1. Click next to System Profiler.

    Choose General Analysis from the drop-down list. The page for creating a task is displayed.

  2. Set task parameters by referring to "Task Management" and Table 1.
    Create an I/O analysis task. See Figure 1.
    Figure 1 Creating a PCIe analysis task
    Table 1 Parameters for creating a PCIe analysis task

    Parameter

    Description

    Task Name

    Name of the task. The name must meet the following requirements:

    1. Contain only letters, digits, and underscores (_).
    2. Contain 1 to 64 characters.

    Analysis Object

    Select System.

    Analysis Type

    Select I/O Performance.

    I/O Analysis Type

    Select PCIe.

    Select Node

    Node to be analyzed.

    Collection Interval (s)

    Task collection interval. The options are 1 (default), 5, and 10.

    Collection Duration (s)

    Task collection duration, in seconds. The default value is 5. The value range is 2 to 300.

    Collection Type

    Task collection type. The options are Basic analysis and Detailed analysis.

    Analysis Metric

    Bandwidth analysis metric. The options are Bandwidth delay analysis of the device RP (default) and Detailed bandwidth analysis of the device EP. This parameter is available when Collection Type is set to Detailed analysis.

    PCIe EP Device

    PCIe EP device whose data is to be collected. You can click graphic window to select a PCIe EP device.

    TLP Length Counting Mode

    TLP length counting mode. The options are Bandwidth of TLP payloads and headers (default), Bandwidth of TLP payloads, and Bandwidth of TLP headers.

    Trigger Condition

    Condition for triggering bandwidth collection. The options are Disabled (default), Greater than, and Less than. This parameter is displayed in Advanced Configuration of Bandwidth Collection.

    Trigger Threshold (dw)

    Threshold for triggering bandwidth collection. This parameter is available when Trigger Condition is set to Greater than or Less than. The options are 1 (default), 2, 4, 8, 16, 32, 64, 128, 256, 512, and 1024.

    Filter Range

    Filter range for bandwidth collection. The options are Disabled (default), Greater than, and Less than. This parameter is displayed in Advanced Configuration of Bandwidth Collection.

    Filter Threshold (dw)

    Filter range threshold for bandwidth collection. This parameter is available when Filter Range is set to Greater than or Less than. The options are 1 (default), 2, 4, 8, 16, 32, 64, 128, 256, 512, and 1024.
  3. Click OK.

    You can click the icons next to the task name to perform the following operations:

    • : cancels the analysis task. After an analysis task is canceled, the collected information will be deleted.
    • : restarts the analysis task. You can modify task parameter settings and restart an analysis task. This button is available when a task is canceled or fails.
    • : deletes the analysis task. After a task is deleted, all data of this task will be deleted. Exercise caution when performing this operation.
    • : performs the analysis again. The analysis task is renamed and restarted.
    • : creates a task for comparing analysis results.
    • : changes the task or report name. The report naming rule is the same as that of a task.
Parent topic: I/O Analysis