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Benchmark mode with csv output

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refs #269
This commit is contained in:
saschawillems 2017-07-29 19:31:00 +02:00
parent 8d158bbff5
commit b2136e639f
2 changed files with 126 additions and 101 deletions
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153
base/vulkanexamplebase.cpp
View file

@ -185,7 +185,7 @@ void VulkanExampleBase::prepare()
setupRenderPass();
createPipelineCache();
setupFrameBuffer();
enableTextOverlay = enableTextOverlay && (!benchmark.active);
if (enableTextOverlay)
{
// Load the text rendering shaders
@ -224,70 +224,12 @@ VkPipelineShaderStageCreateInfo VulkanExampleBase::loadShader(std::string fileNa
void VulkanExampleBase::renderFrame()
{
#if (defined(VK_USE_PLATFORM_IOS_MVK) || defined(VK_USE_PLATFORM_MACOS_MVK))
auto tStart = std::chrono::high_resolution_clock::now();
if (viewUpdated)
{
viewUpdated = false;
viewChanged();
}
render();
frameCounter++;
auto tEnd = std::chrono::high_resolution_clock::now();
auto tDiff = std::chrono::duration<double, std::milli>(tEnd - tStart).count();
frameTimer = tDiff / 1000.0f;
camera.update(frameTimer);
if (camera.moving())
{
viewUpdated = true;
}
// Convert to clamped timer value
if (!paused)
{
timer += timerSpeed * frameTimer;
if (timer > 1.0)
{
timer -= 1.0f;
}
}
fpsTimer += (float)tDiff;
if (fpsTimer > 1000.0f)
{
lastFPS = frameCounter;
updateTextOverlay();
fpsTimer = 0.0f;
frameCounter = 0;
}
#endif
}
void VulkanExampleBase::renderLoop()
{
destWidth = width;
destHeight = height;
#if defined(_WIN32)
MSG msg;
bool quitMessageReceived = false;
while (!quitMessageReceived)
{
auto tStart = std::chrono::high_resolution_clock::now();
if (viewUpdated)
{
viewUpdated = false;
viewChanged();
}
while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
if (msg.message == WM_QUIT)
{
quitMessageReceived = true;
break;
}
}
render();
frameCounter++;
@ -311,16 +253,77 @@ void VulkanExampleBase::renderLoop()
fpsTimer += (float)tDiff;
if (fpsTimer > 1000.0f)
{
if (!enableTextOverlay)
{
#if defined(_WIN32)
if (!enableTextOverlay) {
std::string windowTitle = getWindowTitle();
SetWindowText(window, windowTitle.c_str());
}
#endif
lastFPS = static_cast<uint32_t>(1.0f / frameTimer);
updateTextOverlay();
fpsTimer = 0.0f;
frameCounter = 0;
}
}
void VulkanExampleBase::benchmarkLoop()
{
for (uint32_t i = 0; i < benchmark.iterations; i++) {
for (uint32_t f = 0; f < 1000; f++) {
auto tStart = std::chrono::high_resolution_clock::now();
render();
auto tEnd = std::chrono::high_resolution_clock::now();
auto tDiff = std::chrono::duration<double, std::milli>(tEnd - tStart).count();
double frameTime = (double)tDiff / 1000;
benchmark.iterationTime[benchmark.currIteration] += frameTime;
}
benchmark.currIteration++;
}
vkDeviceWaitIdle(device);
// Save results as comma separated file
std::ofstream result("benchresults.csv", std::ios::out);
if (result.is_open()) {
double tMin = *std::min_element(benchmark.iterationTime.begin(), benchmark.iterationTime.end());
double tMax = *std::max_element(benchmark.iterationTime.begin(), benchmark.iterationTime.end());
double tAvg = std::accumulate(benchmark.iterationTime.begin(), benchmark.iterationTime.end(), 0.0) / benchmark.iterations;
result << std::fixed << std::setprecision(3);
result << title << std::endl;
result << ",iterations,time(ms),fps" << std::endl;;
for (size_t i = 0; i < benchmark.iterationTime.size(); i++) {
result << "," << i << "," << benchmark.iterationTime[i] << "," << (1000.0 / benchmark.iterationTime[i]) << std::endl;
}
result << ",summary" << std::endl;
result << ",,time(ms),fps" << std::endl;
result << ",min," << tMin << "," << (1000.0 / tMin) << std::endl;
result << ",max," << tMax << "," << (1000.0 / tMax) << std::endl;
result << ",avg," << tAvg << "," << (1000.0 / tAvg) << std::endl;
}
}
void VulkanExampleBase::renderLoop()
{
if (benchmark.active) {
benchmarkLoop();
return;
}
destWidth = width;
destHeight = height;
#if defined(_WIN32)
MSG msg;
bool quitMessageReceived = false;
while (!quitMessageReceived) {
while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
if (msg.message == WM_QUIT) {
quitMessageReceived = true;
break;
}
}
renderFrame();
}
#elif defined(__ANDROID__)
while (1)
@ -674,30 +677,38 @@ VulkanExampleBase::VulkanExampleBase(bool enableValidation)
// Parse command line arguments
for (size_t i = 0; i < args.size(); i++)
{
if (args[i] == std::string("-validation"))
{
if (args[i] == std::string("-validation")) {
settings.validation = true;
}
if (args[i] == std::string("-vsync"))
{
if (args[i] == std::string("-vsync")) {
settings.vsync = true;
}
if (args[i] == std::string("-fullscreen"))
{
if (args[i] == std::string("-fullscreen")) {
settings.fullscreen = true;
}
if ((args[i] == std::string("-w")) || (args[i] == std::string("-width")))
{
if ((args[i] == std::string("-w")) || (args[i] == std::string("-width"))) {
char* endptr;
uint32_t w = strtol(args[i + 1], &endptr, 10);
if (endptr != args[i + 1]) { width = w; };
}
if ((args[i] == std::string("-h")) || (args[i] == std::string("-height")))
{
if ((args[i] == std::string("-h")) || (args[i] == std::string("-height"))) {
char* endptr;
uint32_t h = strtol(args[i + 1], &endptr, 10);
if (endptr != args[i + 1]) { height = h; };
}
if ((args[i] == std::string("-b")) || (args[i] == std::string("-benchmark"))) {
benchmark.active = true;
// Number of iterations as optional parameter
if (args.size() > i + 1) {
char* endptr;
uint32_t iterations = strtol(args[i + 1], &endptr, 10);
if (endptr != args[i + 1]) { benchmark.iterations = iterations; };
}
benchmark.iterationTime.resize(benchmark.iterations);
benchmark.frameTimes.min = std::numeric_limits<double>::max();
benchmark.frameTimes.max = std::numeric_limits<double>::min();
benchmark.frameTimes.avg = 0.0;
}
}
#if defined(__ANDROID__)

14
base/vulkanexamplebase.h
View file

@ -37,6 +37,7 @@
#include <glm/glm.hpp>
#include <string>
#include <array>
#include <numeric>
#include "vulkan/vulkan.h"
@ -150,6 +151,17 @@ public:
VkClearColorValue defaultClearColor = { { 0.025f, 0.025f, 0.025f, 1.0f } };
/** @brief Stores performance metrics for benchmark runs */
struct Benchmark {
bool active = false;
uint32_t iterations = 10;
uint32_t currIteration = 0;
std::vector<double> iterationTime;
struct FrameTimes {
double min, max, avg;
} frameTimes;
} benchmark;
float zoom = 0;
static std::vector<const char*> args;
@ -379,6 +391,8 @@ public:
// Start the main render loop
void renderLoop();
void benchmarkLoop();
// Render one frame of a render loop on platforms that sync rendering
void renderFrame();