Class: fcf::NTest::Duration
Package: fcfTest
File: test.hpp
Available from version: 1.0.1
Returns the total elapsed time of all benchmark iterations in nanoseconds
The totalDuration() method calculates the cumulative time elapsed between the begin() and end() calls, covering all executed iterations. It is used to retrieve the absolute measurement of the entire benchmarking session.
Result
std::chrono::nanoseconds
- The total duration expressed in nanoseconds
Example: Automated Benchmarking
When using the call operator, the total duration is automatically calculated after all iterations are completed
fcf::NTest::Duration bench(1000);
bench([]() {
// Task to measure
int x = 0;
for(int i = 0; i < 100; ++i) x += i;
});
fcf::NTest::log() << "Total time: " << bench.totalDuration().count() << " ns" << std::endl;
Example: Manual Benchmarking
Useful when wrapping a loop manually to get the total time spent in the block
fcf::NTest::Duration bench(100);
bench.begin();
for(int i = 0; i < bench.iterations(); ++i) {
// Task to measure
int x = 0;
for(int i = 0; i < 100; ++i) x += i;
}
bench.end();
fcf::NTest::log() << "Total time: " << bench.totalDuration().count() << " ns" << std::endl;
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