Intel® VTune™ Profiler User Guide

User Guide

Contents

Profile Targets in the Hyper-V* Environment

Configure your Windows* system to enable hardware event-based performance analysis in the Hyper-V virtualization environment.
VTune
Profiler
 supports performance profiling in the Hyper-V environment with some limitations applicable to the event-based sampling collection. So, before you start the analysis, make sure your system configuration satisfies the requirements.

Verify Your System Configuration for Hardware Analysis

  • For the hardware analysis in your Hyper-V environment, make sure your system runs on:
    • Intel microarchitectures code named Skylake, Goldmont, or later;
    • Windows 10 RS3 operating system (version 1709) or later. To check the system version, use the
      winver
       command.
  • Run the
    msinfo32
     command to make sure the Hyper-V is enabled and running.
    The
    System Summary
     in the
    System Information
     dialog box should show the
    Virtualization-based security
     item as Running:
If your system does not meet the profiling requirements but you plan to run hardware event-based sampling analysis with
VTune
Profiler
, make sure to disable the
Hyper-V
 feature in the system settings.

Disable the Credential Guard and Device Guard on Hyper-V

The Hyper-V has optional security features: Device Guard and Credential Guard. When either or both of them are enabled, accessing non-architectural PMU MSRs triggers (required for the driver-based hardware event sampling analysis) a general protection fault. For example, offcore response MSRs and uncore related MSRs are non-architectural MSRs. To collect these events, you must disable the security features as follows:
  1. Make sure the security features are running on your system:
    1. Run the
      msinfo32
       command to open the
      System Information
       dialog.
    2. In the
      System Summary
      , check whether the
      Virtualization-based Security Services Running
       item includes
      Hypervisor enforced Code Integrity
       and/or
      Credential Guard
       values.
  2. Disable these security features by running the Microsoft* DG-CG-Readiness-Tool, available at https://www.microsoft.com/en-us/download/details.aspx?id=53337:
    1. Open Powershell as an administrator and go to the tool installation directory.
    2. Run the tool as follows:
      .\DG_Readiness_Tool_v2.1.ps1 -Disable -CG -DG
    3. Reboot the system.
    4. Make sure the device guard is turned off. The output from
      msinfo32
       should NOT include either
      Hypervisor enforced Code Integrity
       or
      Credential Guard
      .

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.