Function TestPool_Benchmark

src/Tests.cpp:5479–5934

}

static void TestPool_Benchmark(
    PoolTestResult& outResult,
    const PoolTestConfig& config)
{
    TEST(config.ThreadCount > 0);

    RandomNumberGenerator mainRand{config.RandSeed};

    uint32_t allocationSizeProbabilitySum = std::accumulate(
        config.AllocationSizes.begin(),
        config.AllocationSizes.end(),
        0u,
        [](uint32_t sum, const AllocationSize& allocSize) {
            return sum + allocSize.Probability;
        });

    VkBufferCreateInfo bufferTemplateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
    bufferTemplateInfo.size = 256; // Whatever.
    bufferTemplateInfo.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_INDEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT;

    VkImageCreateInfo imageTemplateInfo = { VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO };
    imageTemplateInfo.imageType = VK_IMAGE_TYPE_2D;
    imageTemplateInfo.extent.width = 256; // Whatever.
    imageTemplateInfo.extent.height = 256; // Whatever.
    imageTemplateInfo.extent.depth = 1;
    imageTemplateInfo.mipLevels = 1;
    imageTemplateInfo.arrayLayers = 1;
    imageTemplateInfo.format = VK_FORMAT_R8G8B8A8_UNORM;
    imageTemplateInfo.tiling = VK_IMAGE_TILING_OPTIMAL; // LINEAR if CPU memory.
    imageTemplateInfo.initialLayout = VK_IMAGE_LAYOUT_PREINITIALIZED;
    imageTemplateInfo.usage = VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT; // TRANSFER_SRC if CPU memory.
    imageTemplateInfo.samples = VK_SAMPLE_COUNT_1_BIT;

    uint32_t bufferMemoryTypeBits = UINT32_MAX;
    {
        VkBuffer dummyBuffer;
        VkResult res = vkCreateBuffer(g_hDevice, &bufferTemplateInfo, g_Allocs, &dummyBuffer);
        TEST(res == VK_SUCCESS);

        VkMemoryRequirements memReq;
        vkGetBufferMemoryRequirements(g_hDevice, dummyBuffer, &memReq);
        bufferMemoryTypeBits = memReq.memoryTypeBits;

        vkDestroyBuffer(g_hDevice, dummyBuffer, g_Allocs);
    }

    uint32_t imageMemoryTypeBits = UINT32_MAX;
    {
        VkImage dummyImage;
        VkResult res = vkCreateImage(g_hDevice, &imageTemplateInfo, g_Allocs, &dummyImage);
        TEST(res == VK_SUCCESS);

        VkMemoryRequirements memReq;
        vkGetImageMemoryRequirements(g_hDevice, dummyImage, &memReq);
        imageMemoryTypeBits = memReq.memoryTypeBits;

        vkDestroyImage(g_hDevice, dummyImage, g_Allocs);
    }