# VkPhysicalDevicePerformanceQueryFeaturesKHR(3) Manual Page

## Name

VkPhysicalDevicePerformanceQueryFeaturesKHR - Structure describing performance query support for an implementation

## C Specification

The `VkPhysicalDevicePerformanceQueryFeaturesKHR` structure is defined as:

    typedef struct VkPhysicalDevicePerformanceQueryFeaturesKHR {
        VkStructureType    sType;
        void*              pNext;
        VkBool32           performanceCounterQueryPools;
        VkBool32           performanceCounterMultipleQueryPools;
    } VkPhysicalDevicePerformanceQueryFeaturesKHR;

## Members

The members of the `VkPhysicalDevicePerformanceQueryFeaturesKHR` structure describe the following implementation-dependent features:

## Description

- `sType` is the type of this structure.

- `pNext` is `NULL` or a pointer to an extension-specific structure.

- `performanceCounterQueryPools` is `VK_TRUE` if the physical device supports performance counter query pools.

- `performanceCounterMultipleQueryPools` is `VK_TRUE`` if the physical device supports using multiple performance query pools in a primary command buffer and secondary command buffers executed within it.

Valid Usage (Implicit)

- `sType` must be `VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PERFORMANCE_QUERY_FEATURES_KHR`

To query supported performance counter query pool features, call vkGetPhysicalDeviceFeatures2 with a `VkPhysicalDevicePerformanceQueryFeaturesKHR` structure included in the `pNext` chain of its `pFeatures` parameter. The `VkPhysicalDevicePerformanceQueryFeaturesKHR` structure can also be included in the `pNext` chain of a VkDeviceCreateInfo structure, in which case it controls which additional features are enabled in the device.

## See Also

`VkBool32`, VkStructureType

## Document Notes

For more information, see the Vulkan Specification

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

## Copyright

Copyright (c) 2014-2020 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.