C Specification

The xrQueryPerformanceMetricsCounterMETA function is defined as:

// Provided by XR_META_performance_metrics
XrResult xrQueryPerformanceMetricsCounterMETA(
    XrSession                                   session,
    XrPath                                      counterPath,
    XrPerformanceMetricsCounterMETA*            counter);

Parameters

Parameter Descriptions

Description

The xrQueryPerformanceMetricsCounterMETA function queries a performance metrics counter.

The application should enable the performance metrics system (by calling xrSetPerformanceMetricsStateMETA) before querying metrics using xrQueryPerformanceMetricsCounterMETA. If the performance metrics system has not been enabled before calling xrQueryPerformanceMetricsCounterMETA, the runtime must return XR_ERROR_VALIDATION_FAILURE.

If counterPath is not in the list returned by xrEnumeratePerformanceMetricsCounterPathsMETA, the runtime must return XR_ERROR_PATH_UNSUPPORTED.

Valid Usage (Implicit)
Return Codes
On success, this command returns

  • XR_SUCCESS

  • XR_SESSION_LOSS_PENDING

On failure, this command returns

  • XR_ERROR_FUNCTION_UNSUPPORTED

  • XR_ERROR_VALIDATION_FAILURE

  • XR_ERROR_RUNTIME_FAILURE

  • XR_ERROR_HANDLE_INVALID

  • XR_ERROR_INSTANCE_LOST

  • XR_ERROR_SESSION_LOST

  • XR_ERROR_PATH_UNSUPPORTED

  • XR_ERROR_PATH_INVALID

See Also

XR_META_performance_metrics, XrPath, XrPerformanceMetricsCounterMETA, XrSession

Document Notes

For more information, see the OpenXR Specification

This page is extracted from the OpenXR Specification. Fixes and changes should be made to the Specification, not directly.

Copyright

Copyright 2014-2025 The Khronos Group Inc.

This work is licensed under a Creative Commons Attribution 4.0 International License.