minetest/src/profiler.h

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/*
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Minetest
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Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include "irrlichttypes.h"
#include <cassert>
#include <string>
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#include <map>
#include <ostream>
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#include "threading/mutex_auto_lock.h"
#include "util/timetaker.h"
#include "util/numeric.h" // paging()
// Global profiler
class Profiler;
extern Profiler *g_profiler;
/*
Time profiler
*/
class Profiler
{
public:
Profiler();
void add(const std::string &name, float value);
void avg(const std::string &name, float value);
void clear();
float getValue(const std::string &name) const;
int getAvgCount(const std::string &name) const;
u64 getElapsedMs() const;
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typedef std::map<std::string, float> GraphValues;
// Returns the line count
int print(std::ostream &o, u32 page = 1, u32 pagecount = 1);
void getPage(GraphValues &o, u32 page, u32 pagecount);
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void graphAdd(const std::string &id, float value)
{
MutexAutoLock lock(m_mutex);
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std::map<std::string, float>::iterator i =
m_graphvalues.find(id);
if(i == m_graphvalues.end())
m_graphvalues[id] = value;
else
i->second += value;
}
void graphGet(GraphValues &result)
{
MutexAutoLock lock(m_mutex);
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result = m_graphvalues;
m_graphvalues.clear();
}
void remove(const std::string& name)
{
MutexAutoLock lock(m_mutex);
m_avgcounts.erase(name);
m_data.erase(name);
}
private:
std::mutex m_mutex;
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std::map<std::string, float> m_data;
std::map<std::string, int> m_avgcounts;
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std::map<std::string, float> m_graphvalues;
u64 m_start_time;
};
enum ScopeProfilerType{
SPT_ADD,
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SPT_AVG,
SPT_GRAPH_ADD
};
class ScopeProfiler
{
public:
ScopeProfiler(Profiler *profiler, const std::string &name,
ScopeProfilerType type = SPT_ADD);
~ScopeProfiler();
private:
Profiler *m_profiler = nullptr;
std::string m_name;
TimeTaker *m_timer = nullptr;
enum ScopeProfilerType m_type;
};