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1df94c4513
This macro outputs the time taken to reach the end of the current scope to the debug console. It also shows the average time, total cumulative time and the total number of calls. It is also possible to limit the amount of debug output using `REPORT_TIME_EVERY(name, n)` to only print every `n` calls.
35 lines
1.1 KiB
C++
35 lines
1.1 KiB
C++
/*
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* Copyright (c) 2025, Tim Ledbetter <tim.ledbetter@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/ScopeGuard.h>
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#include <AK/Time.h>
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#include <LibCore/ElapsedTimer.h>
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namespace Core {
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struct TimingInfo {
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u64 cumulative_time_nanoseconds { 0 };
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u64 call_count { 0 };
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};
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void log_timing_info(ByteString const& name, AK::Duration const& elapsed_time, u64 print_every_n_calls);
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#define CONCAT(a, b) a##b
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#define UNIQUE_NAME(base) CONCAT(base, __LINE__)
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#define REPORT_TIME_EVERY(name, print_every_n_calls) \
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auto UNIQUE_NAME(report_time_timer_) = Core::ElapsedTimer::start_new(Core::TimerType::Precise); \
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ScopeGuard UNIQUE_NAME(report_time_guard_) = [&] { \
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auto elapsed_time = UNIQUE_NAME(report_time_timer_).elapsed_time(); \
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Core::log_timing_info(#name, elapsed_time, print_every_n_calls); \
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};
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#define REPORT_TIME(name) \
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REPORT_TIME_EVERY(name, 1)
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}
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