LINUX：检查当前进程内存占用的C代码

两种办法都可以，结果一样：

#include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <string.h> #define PROCESS_STATM "/proc/self/statm" #define PROCESS_STATUS "/proc/self/status" void get_memory1(int* info) { FILE *file = fopen(PROCESS_STATM, "r"); if (!file) { WY_LOG_INFO("Failed to open %s", PROCESS_STATM); return; } long size, resident, share, text, lib, data, dt; if (fscanf(file, "%ld %ld %ld %ld %ld %ld %ld", &size, &resident, &share, &text, &lib, &data, &dt) != 7) { fclose(file); return; } fclose(file); long page_size = sysconf(_SC_PAGESIZE)/1024; // 通常为4096字节 //物理内存(RSS), KB info[0] = resident * page_size; //虚拟内存, KB info[1] = size * page_size; //共享内存, KB info[2] = share * page_size; } void get_memory2(int* info) { FILE *file = fopen(PROCESS_STATUS, "r"); if (!file) return; char line[128]; while (fgets(line, sizeof(line), file)) { if (strncmp(line, "VmRSS:", 6) == 0) { // 物理内存 //物理内存 info[0] = atoi(line + 6); } else if (strncmp(line, "VmSize:", 7) == 0) { // 虚拟内存 //虚拟内存 info[1] = atoi(line + 7); } } fclose(file); }