Hi everyone, im having a problem in getting the memory usage of my program. I want to know how much memory was used (in bytes or kb ) in this function:
eg:
int test(int a , int b)
{
// Start
while ( a != b ) {
//..
//..
//..
b++;
// end
}
}
Is it possible to get the memory usage from Start to End as shown in the code.
I heard about GetProcessMemoryInfo() but i dont know how to use it. Help please? Anyone?
Thanks :)
Getting the memory usage
The way I've seen most games do it is to keep track of it yourself. That is, you replace malloc/new/etc with your own versions which increment counters as well as performing an allocation.
If you didn't want to do custom allocation, you could use GetProcessMemoryInfo as you said.
Example:
Not sure if that suits your purpose, but it should get the total working set size of your process
Example:
#include <iostream>#include "windows.h"#include "Psapi.h"using namespace std;int getTotalMemory() { PROCESS_MEMORY_COUNTERS mem; GetProcessMemoryInfo(GetCurrentProcess(), &mem, sizeof(mem)); return mem.WorkingSetSize;}int main() { int startMemory = getTotalMemory(); char* bytes = new char[12345678]; // Allocate some memory int endMemory = getTotalMemory(); cout << "Memory used = " << endMemory - startMemory;}/* Compiled with: cl <file> /link PsApi.lib */Not sure if that suits your purpose, but it should get the total working set size of your process
Author
Thanks you guys for ur help..:D
btw Xtal, what is the unit of measurement? is it in bytes or kb or something?
btw Xtal, what is the unit of measurement? is it in bytes or kb or something?
Author
Thx Plerion.
btw
i have an error
>>error LNK2019: unresolved external symbol _GetProcessMemoryInfo@12 referenced in function "int __cdecl getTotalMemory(void)" (?getTotalMemory@@YAHXZ)
>>fatal error LNK1120: 1 unresolved externals
im using MSVS2008
btw
i have an error
>>error LNK2019: unresolved external symbol _GetProcessMemoryInfo@12 referenced in function "int __cdecl getTotalMemory(void)" (?getTotalMemory@@YAHXZ)
>>fatal error LNK1120: 1 unresolved externals
im using MSVS2008
Quote:Original post by podferio
btw Xtal, what is the unit of measurement? is it in bytes or kb or something?
PROCESS_MEMORY_COUNTERS gives values in bytes.
Author
Already linked the Psapi.lib but i still got the same error. Any more suggestions? :)
Quote:Original post by podferio
Already linked the Psapi.lib but i still got the same error. Any more suggestions? :)
Looks like you need to link kernel.lib on windows 7, are you using windows 7? If not, what method did you use to link psapi.lib? If all else fails perhaps try a rebuild instead of just a regular build.
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