/usr/include/opengm/utilities/meminfo.hxx is in libopengm-dev 2.3.6+20160905-1.
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//** Author: Joerg Hendrik Kappes
//**
//** The MemoryInfo class provides a interface to access memory informations
//** for the current process or system-wide across diffrent platforms.
//** It provides interfaces to get the:
//** - current physically used memory by the process
//** - current virtual used memory by the process
//** - maximal physically used memory by the process so far
//** - maximal virtual used memory by the process so far
//**
//** - used physical memory of the system
//** - free physical memory of the system
//** - total physical memory of the system
//**
//******************************************************
#pragma once
#ifndef SYS_MEMORYINFO_HXX
#define SYS_MEMORYINFO_HXX
#include <iostream>
#include <stdexcept>
#include <limits>
#include "stdlib.h"
#include "stdio.h"
#include "string.h"
// uncomment this line if U have problems with memorylogging -> this will disable it.
//#define SYS_MEMORYINFO_ON
#if ( defined(__APPLE__) && defined(SYS_MEMORYINFO_ON) )
# define SYS_MEMORYINFO_MAC
# include <mach/vm_statistics.h>
# include <mach/mach_types.h>
# include <mach/mach_init.h>
# include <mach/mach_host.h>
# include <mach/mach.h>
# include <limits>
#elif (defined(SYS_MEMORYINFO_ON) && (defined(_WIN32) || defined(WIN32) || defined(__CYGWIN__) || defined(__MINGW32__) || defined(_WIN64)) )
# define SYS_MEMORYINFO_WINDOWS
# include <windows.h>
# include <psapi.h>
# undef min
# undef max
#elif (defined(SYS_MEMORYINFO_ON))
# define SYS_MEMORYINFO_LINUX
# include <unistd.h>
# include "sys/types.h"
# include "sys/sysinfo.h"
#else
#endif
namespace sys {
class MemoryInfo{
public:
inline static double usedVirtualMem();
inline static double usedPhysicalMem();
inline static double usedVirtualMemMax();
inline static double usedPhysicalMemMax();
inline static double usedSystemMem();
inline static double freeSystemMem();
inline static double systemMem();
private:
inline static int parseLine(char* line){
int i = strlen(line);
while (*line < '0' || *line > '9') line++;
line[i-3] = '\0';
i = atoi(line);
return i;
}
};
//**************************************
//**
//** Implementation for Linux
//**
//*************************************
#ifdef SYS_MEMORYINFO_LINUX
double MemoryInfo::usedVirtualMem(){
FILE* file = fopen("/proc/self/status", "r");
int result = -1;
char line[128];
while (fgets(line, 128, file) != NULL){
if (strncmp(line, "VmSize:", 7) == 0){
result = parseLine(line);
break;
}
}
fclose(file);
return static_cast<double>(result);
}
double MemoryInfo::usedPhysicalMem(){
FILE* file = fopen("/proc/self/status", "r");
int result = -1;
char line[128];
while (fgets(line, 128, file) != NULL){
if (strncmp(line, "VmRSS:", 6) == 0){
result = parseLine(line);
break;
}
}
fclose(file);
return static_cast<double>(result);
}
double MemoryInfo::usedVirtualMemMax(){
FILE* file = fopen("/proc/self/status", "r");
int result = -1;
char line[128];
while (fgets(line, 128, file) != NULL){
if (strncmp(line, "VmPeak:", 7) == 0){
result = parseLine(line);
break;
}
}
fclose(file);
return static_cast<double>(result);
}
double MemoryInfo::usedPhysicalMemMax(){
FILE* file = fopen("/proc/self/status", "r");
int result = -1;
char line[128];
while (fgets(line, 128, file) != NULL){
if (strncmp(line, "VmHWM:", 6) == 0){
result = parseLine(line);
break;
}
}
fclose(file);
return static_cast<double>(result);
}
double MemoryInfo::usedSystemMem(){
struct sysinfo memInfo;
sysinfo(&memInfo);
return static_cast<double>(memInfo.totalram - memInfo.freeram)*memInfo.mem_unit/1024.0;
}
double MemoryInfo::freeSystemMem(){
struct sysinfo memInfo;
sysinfo(&memInfo);
return static_cast<double>(memInfo.freeram)*memInfo.mem_unit/1024.0;
}
double MemoryInfo::systemMem(){
struct sysinfo memInfo;
sysinfo(&memInfo);
return static_cast<double>(memInfo.totalram)*memInfo.mem_unit/1024.0;
//long pages = sysconf(_SC_PHYS_PAGES);
//long page_size = sysconf(_SC_PAGE_SIZE);
//return static_cast<double>(pages * page_size)/1024.0;
}
//**************************************************
//**
//** Implementation for Windows
//**
//**************************************************
# elif defined( SYS_MEMORYINFO_WINDOWS )
double MemoryInfo::usedPhysicalMem(){
PROCESS_MEMORY_COUNTERS_EX pmc;
GetProcessMemoryInfo(GetCurrentProcess(),(PROCESS_MEMORY_COUNTERS*) &pmc, sizeof(pmc));
return static_cast<double>(pmc.WorkingSetSize)/1024.0;
}
double MemoryInfo::usedVirtualMem(){
PROCESS_MEMORY_COUNTERS_EX pmc;
GetProcessMemoryInfo(GetCurrentProcess(),(PROCESS_MEMORY_COUNTERS*) &pmc, sizeof(pmc));
return static_cast<double>(pmc.PrivateUsage)/1024.0;
}
double MemoryInfo::usedPhysicalMemMax(){
PROCESS_MEMORY_COUNTERS_EX pmc;
GetProcessMemoryInfo(GetCurrentProcess(),(PROCESS_MEMORY_COUNTERS*) &pmc, sizeof(pmc));
return static_cast<double>(pmc.PeakWorkingSetSize)/1024.0;
}
double MemoryInfo::usedVirtualMemMax(){
PROCESS_MEMORY_COUNTERS_EX pmc;
GetProcessMemoryInfo(GetCurrentProcess(),(PROCESS_MEMORY_COUNTERS*) &pmc, sizeof(pmc));
return static_cast<double>(pmc.PeakPagefileUsage)/1024.0;
}
double MemoryInfo::usedSystemMem(){
MEMORYSTATUSEX memInfo;
memInfo.dwLength = sizeof(MEMORYSTATUSEX);
GlobalMemoryStatusEx(&memInfo);
return static_cast<double>(memInfo.ullTotalPhys-memInfo.ullAvailPhys)/1024.0;
}
double MemoryInfo::freeSystemMem(){
MEMORYSTATUSEX memInfo;
memInfo.dwLength = sizeof(MEMORYSTATUSEX);
GlobalMemoryStatusEx(&memInfo);
return static_cast<double>(memInfo.ullAvailPhys)/1024.0;
}
double MemoryInfo::systemMem(){
MEMORYSTATUSEX memInfo;
memInfo.dwLength = sizeof(MEMORYSTATUSEX);
GlobalMemoryStatusEx(&memInfo);
return static_cast<double>(memInfo.ullTotalPhys)/1024.0;
}
//**************************************************
//**
//** Implementation for MAC
//**
//**************************************************
# elif defined( SYS_MEMORYINFO_MAC )
double MemoryInfo::usedPhysicalMem(){
struct mach_task_basic_info info;
mach_msg_type_number_t infoCount = MACH_TASK_BASIC_INFO_COUNT;
if ( task_info( mach_task_self( ), MACH_TASK_BASIC_INFO,(task_info_t)&info, &infoCount ) != KERN_SUCCESS )
return std::numeric_limits<double>::quiet_NaN();
else
return static_cast<double>(info.resident_size)/1024.0;
}
double MemoryInfo::usedVirtualMem(){
struct mach_task_basic_info info;
mach_msg_type_number_t infoCount = MACH_TASK_BASIC_INFO_COUNT;
if ( task_info( mach_task_self( ), MACH_TASK_BASIC_INFO,(task_info_t)&info, &infoCount ) != KERN_SUCCESS )
return std::numeric_limits<double>::quiet_NaN();
else
return static_cast<double>(info.virtual_size)/1024.0;
}
double MemoryInfo::usedPhysicalMemMax(){
struct rusage rusage;
getrusage( RUSAGE_SELF, &rusage );
return static_cast<double>(rusage.ru_maxrss)/1024;
//return std::numeric_limits<double>::quiet_NaN();
}
double MemoryInfo::usedVirtualMemMax(){
return std::numeric_limits<double>::quiet_NaN();
}
double MemoryInfo::usedSystemMem(){
return std::numeric_limits<double>::quiet_NaN();
}
double MemoryInfo::freeSystemMem(){
return std::numeric_limits<double>::quiet_NaN();
}
double MemoryInfo::systemMem(){
return std::numeric_limits<double>::quiet_NaN();
}
#else
double MemoryInfo::usedPhysicalMem(){
return std::numeric_limits<double>::quiet_NaN();
}
double MemoryInfo::usedVirtualMem(){
return std::numeric_limits<double>::quiet_NaN();
}
double MemoryInfo::usedPhysicalMemMax(){
return std::numeric_limits<double>::quiet_NaN();
}
double MemoryInfo::usedVirtualMemMax(){
return std::numeric_limits<double>::quiet_NaN();
}
double MemoryInfo::usedSystemMem(){
return std::numeric_limits<double>::quiet_NaN();
}
double MemoryInfo::freeSystemMem(){
return std::numeric_limits<double>::quiet_NaN();
}
double MemoryInfo::systemMem(){
return std::numeric_limits<double>::quiet_NaN();
}
#endif
} // namespace sys
#endif // SYS_MEMORYINFO_HXX
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