TEST_F(BenchmarkTest, it_measures_time_consuming) {
Benchmark benchmark;
benchmark.start();
int time_to_sleep = 1;
suspend(time_to_sleep);
ASSERT_TRUE(time_to_sleep <= benchmark.end());
}
void BenchWidget::paintEvent(QPaintEvent *)
{
if (m_done)
return;
QPainter p(this);
m_benchmark->begin(&p, 100);
PaintingRectAdjuster adjuster;
adjuster.setNewBenchmark(m_benchmark);
adjuster.reset(rect());
for (int i = 0; i < 100; ++i)
m_benchmark->draw(&p, adjuster.newPaintingRect(), i);
m_benchmark->end(&p);
++m_iteration;
uint currentElapsed = timer.isNull() ? 0 : timer.elapsed();
timer.restart();
m_total += currentElapsed;
// warm up for at most 5 iterations or half a second
if (m_iteration >= 5 || m_total >= 500) {
iterationTimes << currentElapsed;
if (iterationTimes.size() >= 5) {
qreal mean = 0;
qreal stddev = 0;
uint min = INT_MAX;
for (int i = 0; i < iterationTimes.size(); ++i) {
mean += iterationTimes.at(i);
min = qMin(min, iterationTimes.at(i));
}
mean /= qreal(iterationTimes.size());
for (int i = 0; i < iterationTimes.size(); ++i) {
qreal delta = iterationTimes.at(i) - mean;
stddev += delta * delta;
}
stddev = qSqrt(stddev / iterationTimes.size());
stddev = 100 * stddev / mean;
// do 50 iterations, break earlier if we spend more than 5 seconds or have a low std deviation after 2 seconds
if (iterationTimes.size() >= 50 || m_total >= 5000 || (m_total >= 2000 && stddev < 4)) {
m_result = min;
m_done = true;
return;
}
}
}
}
TEST_F(PerformanceTest, DISABLED_test_performance) {
DiskHammalFactory factory(GBYTES11FILE);
OutputWriter writer(GBYTESRESULT);
JobConfiguration configuration(1, 150 * 1024 * 1024, 10, 20);
JobClient client(configuration, factory, writer);
SimpleWordMapper mapper;
Benchmark benchmark;
benchmark.start();
client.run_job(mapper);
std::cout << "Elapsed time in second:" << benchmark.end() << std::endl;
}
TEST_F(BenchmarkTest, it_returns_error_if_end_is_called_after_end) {
Benchmark benchmark;
benchmark.start();
benchmark.end();
ASSERT_EQ(-1, benchmark.end());
}
TEST_F(BenchmarkTest, it_returns_error_if_end_is_called_before_start) {
Benchmark benchmark;
ASSERT_EQ(-1, benchmark.end());
}
