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Home » U++ Library support » U++ Core » memory consumption of my application
memory consumption of my application [message #59856] Fri, 05 May 2023 18:15 Go to next message
BetoValle is currently offline  BetoValle
Messages: 203
Registered: September 2020
Location: Brasil Valinhos SP
Experienced Member
Hi,

is there a function that can tell how much my application is consuming?

Thanks
Re: memory consumption of my application [message #59858 is a reply to message #59856] Sat, 06 May 2023 00:57 Go to previous messageGo to next message
BetoValle is currently offline  BetoValle
Messages: 203
Registered: September 2020
Location: Brasil Valinhos SP
Experienced Member
In stackoverflow i have located this code but I don't know if it works on linux. My question is, is this the way to go? Or if there is a code already implemented in U++?


#include <windows.h>
#include <stdio.h>
#include <psapi.h>

void PrintMemoryInfo( DWORD processID )
{
    HANDLE hProcess;
    PROCESS_MEMORY_COUNTERS pmc;

    // Print the process identifier.

    printf( "\nProcess ID: %u\n", processID );

    // Print information about the memory usage of the process.

    hProcess = OpenProcess(  PROCESS_QUERY_INFORMATION |
                                    PROCESS_VM_READ,
                                    FALSE, processID );
    if (NULL == hProcess)
        return;

    if ( GetProcessMemoryInfo( hProcess, &pmc, sizeof(pmc)) )
    {
        printf( "\tPageFaultCount: 0x%08X\n", pmc.PageFaultCount );
        printf( "\tPeakWorkingSetSize: 0x%08X\n", 
                  pmc.PeakWorkingSetSize );
        printf( "\tWorkingSetSize: 0x%08X\n", pmc.WorkingSetSize );
        printf( "\tQuotaPeakPagedPoolUsage: 0x%08X\n", 
                  pmc.QuotaPeakPagedPoolUsage );
        printf( "\tQuotaPagedPoolUsage: 0x%08X\n", 
                  pmc.QuotaPagedPoolUsage );
        printf( "\tQuotaPeakNonPagedPoolUsage: 0x%08X\n", 
                  pmc.QuotaPeakNonPagedPoolUsage );
        printf( "\tQuotaNonPagedPoolUsage: 0x%08X\n", 
                  pmc.QuotaNonPagedPoolUsage );
        printf( "\tPagefileUsage: 0x%08X\n", pmc.PagefileUsage ); 
        printf( "\tPeakPagefileUsage: 0x%08X\n", 
                  pmc.PeakPagefileUsage );
    }

    CloseHandle( hProcess );
}

int main( )
{
    // Get the list of process identifiers.

    DWORD aProcesses[1024], cbNeeded, cProcesses;
    unsigned int i;

    if ( !EnumProcesses( aProcesses, sizeof(aProcesses), &cbNeeded ) )
        return 1;

    // Calculate how many process identifiers were returned.

    cProcesses = cbNeeded / sizeof(DWORD);

    // Print the memory usage for each process

    for ( i = 0; i < cProcesses; i++ )
        PrintMemoryInfo( aProcesses[i] );

    return 0;
}



Re: memory consumption of my application [message #59859 is a reply to message #59856] Sat, 06 May 2023 22:34 Go to previous messageGo to next message
BetoValle is currently offline  BetoValle
Messages: 203
Registered: September 2020
Location: Brasil Valinhos SP
Experienced Member
Hi,

I found these 2 codes for windows and linux. I think they are reasonable to have a base. On windows I did the test and the values don't match with the manager since they use different structure (as the note in the example). On linux the values are already close to the test application!


windows:

void defP(){
	    // Task Manager windows 10 uses VM_COUNTERS_EX2 similar structure is defined (in ntddk.h)
		MEMORYSTATUSEX memInfo;
		memInfo.dwLength = sizeof(MEMORYSTATUSEX);
		GlobalMemoryStatusEx(&memInfo);
		DWORDLONG totalVirtualMem = memInfo.ullTotalPageFile;
		
		DWORDLONG virtualMemUsed = memInfo.ullTotalPageFile - memInfo.ullAvailPageFile;
		
		PROCESS_MEMORY_COUNTERS_EX pmc;
		GetProcessMemoryInfo(GetCurrentProcess(), (PROCESS_MEMORY_COUNTERS*)&pmc, sizeof(pmc));
		SIZE_T virtualMemUsedByMe = pmc.PrivateUsage;
		
		DWORDLONG totalPhysMem = memInfo.ullTotalPhys;
		
		DWORDLONG physMemUsed = memInfo.ullTotalPhys - memInfo.ullAvailPhys;
		
		SIZE_T physMemUsedByMe = pmc.WorkingSetSize;
		
		SIZE_T  x=pmc.PagefileUsage;
		SIZE_T y=pmc.PrivateUsage;
		Cout() <<"m virtual usada-----> " << virtualMemUsedByMe/1024 << EOL;
		Cout() <<"m fisica usada-----> " << physMemUsed/1024/1024 << EOL;
		Cout() <<"total m  usada-----> " << totalPhysMem << EOL;
		Cout() <<"m privada usada-----> " << y/1024 << EOL;
			
}
 
CONSOLE_APP_MAIN
{
  SetLanguage("pt-br");
  SetDateFormat("%3:02d/%2:02d/%1:4d"); // format code in editor
  SetDateScan("dmy");
  
  defP();
  
}
 
linux:
#include <iostream>
#include <Core/Core.h>
#include <SysInfo/SysInfo.h>
 
using namespace Upp;
 
int parseLine(char* line){
    // This assumes that a digit will be found and the line ends in " Kb".
    int i = strlen(line);
    const char* p = line;
    while (*p <'0' || *p > '9') p++;
    line[i-3] = '\0';
    i = atoi(p);
    return i;
}
 
int getValue(){ //Note: this value is in KB!
    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 result;
}
 
CONSOLE_APP_MAIN 
{
	Cout() << "--> " << getValue() << EOL;
}
 
Re: memory consumption of my application [message #59870 is a reply to message #59859] Sun, 14 May 2023 10:34 Go to previous message
mirek is currently offline  mirek
Messages: 13986
Registered: November 2005
Ultimate Member
For U++ heap, you can use MemoryUsedKb, MemoryUseKbMax, MemoryProfile, or PeakMemoryProfile.

There is even MemoryProfileInfo function in CtrlLib that show it in Prompt.
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