81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "BLI_string_ref.hh"
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#include "BLI_timeit.hh"
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#include <algorithm>
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#include <iostream>
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#include <fmt/format.h>
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namespace blender::timeit {
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static void format_duration(Nanoseconds duration, fmt::memory_buffer &buf)
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{
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using namespace std::chrono;
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if (duration < microseconds(100)) {
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fmt::format_to(fmt::appender(buf), FMT_STRING("{} ns"), duration.count());
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}
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else if (duration < seconds(5)) {
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fmt::format_to(fmt::appender(buf), FMT_STRING("{:.2f} ms"), duration.count() / 1.0e6);
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}
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else if (duration > seconds(90)) {
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/* Long durations: print seconds, and also H:m:s */
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const auto dur_hours = duration_cast<hours>(duration);
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const auto dur_mins = duration_cast<minutes>(duration - dur_hours);
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const auto dur_sec = duration_cast<seconds>(duration - dur_hours - dur_mins);
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fmt::format_to(fmt::appender(buf),
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FMT_STRING("{:.1f} s ({}H:{}m:{}s)"),
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duration.count() / 1.0e9,
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dur_hours.count(),
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dur_mins.count(),
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dur_sec.count());
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}
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else {
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fmt::format_to(fmt::appender(buf), FMT_STRING("{:.1f} s"), duration.count() / 1.0e9);
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}
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}
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void print_duration(Nanoseconds duration)
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{
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fmt::memory_buffer buf;
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format_duration(duration, buf);
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std::cout << StringRef(buf.data(), buf.size());
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}
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ScopedTimer::~ScopedTimer()
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{
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const TimePoint end = Clock::now();
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const Nanoseconds duration = end - start_;
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fmt::memory_buffer buf;
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fmt::format_to(fmt::appender(buf), FMT_STRING("Timer '{}' took "), name_);
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format_duration(duration, buf);
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buf.append(StringRef("\n"));
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std::cout << StringRef(buf.data(), buf.size());
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}
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ScopedTimerAveraged::~ScopedTimerAveraged()
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{
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const TimePoint end = Clock::now();
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const Nanoseconds duration = end - start_;
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total_count_++;
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total_time_ += duration;
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min_time_ = std::min(duration, min_time_);
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fmt::memory_buffer buf;
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fmt::format_to(fmt::appender(buf), FMT_STRING("Timer '{}': (Average: "), name_);
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format_duration(total_time_ / total_count_, buf);
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buf.append(StringRef(", Min: "));
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format_duration(min_time_, buf);
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buf.append(StringRef(", Last: "));
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format_duration(duration, buf);
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fmt::format_to(fmt::appender(buf), ", Samples: {})\n", total_count_);
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std::cout << StringRef(buf.data(), buf.size());
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}
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} // namespace blender::timeit
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