measure_memory.cpp

#include <bits/stdc++.h>
using namespace std;
#include <stdio.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/types.h>
#include <stdlib.h>
#include <unistd.h>

#define MAX_STRING 128

int takeuti(unsigned long x, unsigned long y, unsigned long z)
{
	if (x <= y) {
		return z;
	}
	return takeuti(takeuti(x-1, y, z), takeuti(y-1, z, x), takeuti(z-1, x, y));
}

void use_system(void)
{
	char command[MAX_STRING];

	sprintf(command, "grep VmHWM /proc/%d/status", getpid());
	system(command);
}

void f(vector<int> *v, int n)
{
  for (int i = 0; i < n; ++i)
  {
		v->push_back(i);
	}
}

int main()
{
	vector<int> *v = new vector<int>;

	struct rusage usage0;
	struct rusage usage1;

	getrusage(RUSAGE_SELF, &usage0);
	f(v, 1000000);
	getrusage(RUSAGE_SELF, &usage1);

	printf("%ld\n", getpagesize());
	//printf("%ld\n", usage0.ru_ixrss);
	printf("%ld\n", usage1.ru_maxrss);
	//printf("%ld\n", usage1.ru_ixrss);

	//if (usage1.ru_utime.tv_usec < usage0.ru_utime.tv_usec) {
	//	printf("%d.%d\n", usage1.ru_utime.tv_sec - usage0.ru_utime.tv_sec - 1, 1000000 + usage1.ru_utime.tv_usec - usage0.ru_utime.tv_usec);
	//}
	//else {
	//	printf("%d.%d\n", usage1.ru_utime.tv_sec - usage0.ru_utime.tv_sec, usage1.ru_utime.tv_usec - usage0.ru_utime.tv_usec);
	//}

	free(v);
	
	return 0;
}