mirror of https://github.com/ArduPilot/ardupilot
96 lines
2.2 KiB
C++
96 lines
2.2 KiB
C++
/*
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* Copyright (C) 2016 Intel Corporation. All rights reserved.
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*
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* This file is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This file is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <atomic>
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#include <limits.h>
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#include <pthread.h>
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#include <vector>
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#include "AP_HAL_Linux.h"
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#include "Perf_Lttng.h"
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#include "Thread.h"
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#include "Util.h"
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namespace Linux {
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class Perf_Counter {
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using perf_counter_type = AP_HAL::Util::perf_counter_type;
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using perf_counter_t = AP_HAL::Util::perf_counter_t;
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public:
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Perf_Counter(perf_counter_type type_, const char *name_)
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: name{name_}
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, type{type_}
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, min{ULONG_MAX}
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{
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}
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const char *name;
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Perf_Lttng lttng;
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perf_counter_type type;
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uint64_t count;
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/* Everything below is in nanoseconds */
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uint64_t start;
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uint64_t total;
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uint64_t min;
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uint64_t max;
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double avg;
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double m2;
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};
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class Perf {
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using perf_counter_type = AP_HAL::Util::perf_counter_type;
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using perf_counter_t = AP_HAL::Util::perf_counter_t;
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public:
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~Perf();
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static Perf *get_instance();
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perf_counter_t add(perf_counter_type type, const char *name);
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void begin(perf_counter_t pc);
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void end(perf_counter_t pc);
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void count(perf_counter_t pc);
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unsigned int get_update_count() { return _update_count; }
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private:
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static Perf *_instance;
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Perf();
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void _debug_counters();
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uint64_t _last_debug_msec;
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std::vector<Perf_Counter> _perf_counters;
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/* synchronize addition of new perf counters */
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pthread_rwlock_t _perf_counters_lock;
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/* allow to check if memory pool has changed */
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std::atomic<unsigned int> _update_count;
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};
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}
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