c++获取当前进程内存
#include <unistd.h>#include <iostream>
#include <string>
#include <cstdio>
#include <cstring>
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 = '\0';
i = atoi(p);
return i;
}
// 虚拟内存和物理内存，单位为kb
typedef struct {
uint32_t virtualMem;
uint32_t physicalMem;
} processMem_t;
processMem_t GetProcessMemory() {
FILE *file = fopen("/proc/self/status", "r");
char line;
processMem_t processMem;
while (fgets(line, 128, file) != NULL) {
if (strncmp(line, "VmSize:", 7) == 0) {
processMem.virtualMem = parseLine(line);
break;
}
if (strncmp(line, "VmRSS:", 6) == 0) {
processMem.physicalMem = parseLine(line);
break;
}
}
fclose(file);
return processMem;
}
int main(){
std::cout<<"physicalMem: "<< GetProcessMemory().physicalMem<<std::endl;
std::cout<<"virtualMem: "<< GetProcessMemory().virtualMem<<std::endl;
for (int i = 0; i < 1000000; ++i)
{
usleep(1);
int *p = new int(3);
std::cout << "p: " << *p << std::endl;
std::cout<<"physicalMem: "<< GetProcessMemory().physicalMem<<std::endl;
std::cout<<"virtualMem: "<< GetProcessMemory().virtualMem<<std::endl;
}
return 0;
}
文档来源：51CTO技术博客https://blog.51cto.com/u_14587161/2993546
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