void Statistics::endFrame() {
setValue(frameDurationCounter, frameTimer.getMilliseconds());
{ // IO
static Util::Timer ioTimer;
static size_t lastBytesRead = 0;
static size_t lastBytesWritten = 0;
const uint64_t duration = ioTimer.getNanoseconds();
// Update every second.
if(duration > 1000000000) {
const size_t bytesRead = Util::Utils::getIOBytesRead();
const size_t bytesWritten = Util::Utils::getIOBytesWritten();
const double MebiPerSecond = 1024.0 * 1024.0 * 1.0e-9 * static_cast<double>(duration);
const double readRate = static_cast<double>(bytesRead - lastBytesRead) / MebiPerSecond;
const double writeRate = static_cast<double>(bytesWritten - lastBytesWritten) / MebiPerSecond;
ioTimer.reset();
lastBytesRead = bytesRead;
lastBytesWritten = bytesWritten;
setValue(ioRateReadCounter, readRate);
setValue(ioRateWriteCounter, writeRate);
}
}
pushEvent(EVENT_TYPE_FRAME_END, 1);
}
int test_statistics() {
std::ofstream output("test_statistics.tsv");
output << "class\tnumEventTypes\tnumEventsOverall\tduration\n";
Util::Timer timer;
for(uint32_t numRuns = 1; numRuns < 5; ++numRuns) {
for(uint32_t numEventsOverall = 1; numEventsOverall <= 1000000; numEventsOverall *= 10) {
for(uint32_t numEventTypes = 1; numEventTypes <= 32; numEventTypes *= 2) {
timer.reset();
testStatistics(numEventTypes, numEventsOverall);
timer.stop();
output << "Statistics\t" << numEventTypes << '\t' << numEventsOverall << '\t' << timer.getNanoseconds() << '\n';
timer.reset();
testProfiler(numEventTypes, numEventsOverall);
timer.stop();
output << "Profiler\t" << numEventTypes << '\t' << numEventsOverall << '\t' << timer.getNanoseconds() << '\n';
}
}
}
return EXIT_SUCCESS;
}