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blender-archive/source/blender/blenlib/intern/timeit.cc

51 lines
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C++

/* SPDX-License-Identifier: GPL-2.0-or-later */
#include "BLI_timeit.hh"
#include <algorithm>
#include <iomanip>
namespace blender::timeit {
void print_duration(Nanoseconds duration)
{
using namespace std::chrono;
if (duration < microseconds(100)) {
std::cout << duration.count() << " ns";
}
else if (duration < seconds(5)) {
std::cout << std::fixed << std::setprecision(1) << duration.count() / 1.0e6 << " ms";
}
else if (duration > seconds(90)) {
/* Long durations: print seconds, and also H:m:s */
const auto dur_hours = duration_cast<hours>(duration);
const auto dur_mins = duration_cast<minutes>(duration - dur_hours);
const auto dur_sec = duration_cast<seconds>(duration - dur_hours - dur_mins);
std::cout << std::fixed << std::setprecision(1) << duration.count() / 1.0e9 << " s ("
<< dur_hours.count() << "H:" << dur_mins.count() << "m:" << dur_sec.count() << "s)";
}
else {
std::cout << std::fixed << std::setprecision(1) << duration.count() / 1.0e9 << " s";
}
}
ScopedTimerAveraged::~ScopedTimerAveraged()
{
const TimePoint end = Clock::now();
const Nanoseconds duration = end - start_;
total_count_++;
total_time_ += duration;
min_time_ = std::min(duration, min_time_);
std::cout << "Timer '" << name_ << "': (Average: ";
print_duration(total_time_ / total_count_);
std::cout << ", Min: ";
print_duration(min_time_);
std::cout << ", Last: ";
print_duration(duration);
std::cout << ")\n";
}
} // namespace blender::timeit