vkGetPhysicalDeviceQueueFamilyPerformanceQueryPassesKHR

To query the number of passes required to query a performance query pool on a physical device, call:

void vkGetPhysicalDeviceQueueFamilyPerformanceQueryPassesKHR(
    VkPhysicalDevice physicalDevice,
    const VkQueryPoolPerformanceCreateInfoKHR* pPerformanceQueryCreateInfo,
    uint32_t* pNumPasses);

• physicalDevice is the handle to the physical device whose queue family performance query counter properties will be queried.
• pPerformanceQueryCreateInfo is a pointer to a VkQueryPoolPerformanceCreateInfoKHR of the performance query that is to be created.
• pNumPasses is a pointer to an integer related to the number of passes required to query the performance query pool, as described below.

The pPerformanceQueryCreateInfo member VkQueryPoolPerformanceCreateInfoKHR::queueFamilyIndex must be a queue family of physicalDevice. The number of passes required to capture the counters specified in the pPerformanceQueryCreateInfo member VkQueryPoolPerformanceCreateInfoKHR::pCounters is returned in pNumPasses.