{"id":17284,"date":"2024-11-18T17:43:38","date_gmt":"2024-11-18T09:43:38","guid":{"rendered":"https:\/\/fwq.ai\/blog\/17284\/"},"modified":"2024-11-18T17:43:38","modified_gmt":"2024-11-18T09:43:38","slug":"%e5%a6%82%e4%bd%95%e8%bf%9b%e8%a1%8clinux%e7%b3%bb%e7%bb%9f%e7%9a%84%e5%86%85%e5%ad%98%e7%ae%a1%e7%90%86%e5%92%8c%e6%80%a7%e8%83%bd%e8%b0%83%e4%bc%98","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/17284\/","title":{"rendered":"\u5982\u4f55\u8fdb\u884cLinux\u7cfb\u7edf\u7684\u5185\u5b58\u7ba1\u7406\u548c\u6027\u80fd\u8c03\u4f18"},"content":{"rendered":"

\"\u5982\u4f55\u8fdb\u884cLinux\u7cfb\u7edf\u7684\u5185\u5b58\u7ba1\u7406\u548c\u6027\u80fd\u8c03\u4f18\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u8fdb\u884cLinux\u7cfb\u7edf\u7684\u5185\u5b58\u7ba1\u7406\u548c\u6027\u80fd\u8c03\u4f18<\/p>\n

\u968f\u7740\u8ba1\u7b97\u673a\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\uff0cLinux\u64cd\u4f5c\u7cfb\u7edf\u5728\u670d\u52a1\u5668\u9886\u57df\u7684\u5e94\u7528\u8d8a\u6765\u8d8a\u5e7f\u6cdb\u3002\u800c\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u5185\u5b58\u7ba1\u7406\u548c\u6027\u80fd\u8c03\u4f18\u662f\u4fdd\u8bc1\u7cfb\u7edf\u6b63\u5e38\u8fd0\u884c\u548c\u9ad8\u6548\u5de5\u4f5c\u7684\u91cd\u8981\u73af\u8282\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u8fdb\u884cLinux\u7cfb\u7edf\u7684\u5185\u5b58\u7ba1\u7406\u548c\u6027\u80fd\u8c03\u4f18\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u4e00\u3001Linux\u7cfb\u7edf\u7684\u5185\u5b58\u7ba1\u7406<\/p>\n

\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u5185\u5b58\u7ba1\u7406\u662f\u64cd\u4f5c\u7cfb\u7edf\u7684\u6838\u5fc3\u529f\u80fd\u4e4b\u4e00\u3002\u5b83\u4e3b\u8981\u5305\u62ec\u5185\u5b58\u5206\u914d\u3001\u5185\u5b58\u56de\u6536\u548c\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\u76d1\u63a7\u7b49\u65b9\u9762\u3002\u4e0b\u9762\u4ee5\u5177\u4f53\u4ee3\u7801\u793a\u4f8b\u7684\u5f62\u5f0f\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u89c1\u7684\u5185\u5b58\u7ba1\u7406\u64cd\u4f5c\u3002<\/p>\n

    \n
  1. \u5185\u5b58\u5206\u914d<\/li>\n<\/ol>\n

    \u5185\u5b58\u5206\u914d\u662f\u6307\u64cd\u4f5c\u7cfb\u7edf\u5c06\u7269\u7406\u5185\u5b58\u5206\u914d\u7ed9\u5e94\u7528\u7a0b\u5e8f\u4f7f\u7528\u3002Linux\u7cfb\u7edf\u63d0\u4f9b\u4e86\u591a\u79cd\u5185\u5b58\u5206\u914d\u51fd\u6570\uff0c\u5982malloc()\u3001calloc()\u3001realloc()\u7b49\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528malloc()\u51fd\u6570\u6765\u5206\u914d\u4e00\u5757\u5185\u5b58\uff1a<\/p>\n

    #include <stdio.h>\n#include <stdlib.h>\n\nint main() {\n  int size = 100;\n  int *ptr = malloc(sizeof(int) * size);\n  \n  if(ptr == NULL) {\n    printf(\"\u5185\u5b58\u5206\u914d\u5931\u8d25\uff01\n\");\n    return -1;\n  }\n  \n  printf(\"\u5185\u5b58\u5206\u914d\u6210\u529f\uff01\n\");\n  \n  \/\/ \u4f7f\u7528ptr\u8fdb\u884c\u5185\u5b58\u64cd\u4f5c\n  \n  free(ptr);  \/\/ \u91ca\u653e\u5185\u5b58\n  \n  return 0;\n}<\/stdlib.h><\/stdio.h><\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \n
    1. \u5185\u5b58\u56de\u6536<\/li>\n<\/ol>\n
      \u5185\u5b58\u56de\u6536\u662f\u6307\u64cd\u4f5c\u7cfb\u7edf\u5c06\u4e0d\u518d\u9700\u8981\u7684\u5185\u5b58\u91ca\u653e\uff0c\u4ee5\u4fbf\u518d\u6b21\u5206\u914d\u7ed9\u5176\u4ed6\u5e94\u7528\u7a0b\u5e8f\u4f7f\u7528\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u4f7f\u7528free()\u51fd\u6570\u6765\u56de\u6536\u5185\u5b58\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528free()\u51fd\u6570\u91ca\u653e\u4e4b\u524d\u5206\u914d\u7684\u5185\u5b58\uff1a<\/p>\n
      #include <stdio.h>\n#include <stdlib.h>\n\nint main() {\n  int size = 100;\n  int *ptr = malloc(sizeof(int) * size);\n  \n  if(ptr == NULL) {\n    printf(\"\u5185\u5b58\u5206\u914d\u5931\u8d25\uff01\n\");\n    return -1;\n  }\n  \n  printf(\"\u5185\u5b58\u5206\u914d\u6210\u529f\uff01\n\");\n  \n  \/\/ \u4f7f\u7528ptr\u8fdb\u884c\u5185\u5b58\u64cd\u4f5c\n  \n  free(ptr);  \/\/ \u91ca\u653e\u5185\u5b58\n  \n  printf(\"\u5185\u5b58\u91ca\u653e\u6210\u529f\uff01\n\");\n  \n  return 0;\n}<\/stdlib.h><\/stdio.h><\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
        \n
      1. \u5185\u5b58\u4f7f\u7528\u60c5\u51b5\u76d1\u63a7<\/li>\n<\/ol>\n
        \u5185\u5b58\u4f7f\u7528\u60c5\u51b5\u76d1\u63a7\u662f\u6307\u5b9e\u65f6\u76d1\u63a7\u7cfb\u7edf\u4e2d\u7684\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff0c\u4ee5\u4fbf\u53ca\u65f6\u8c03\u6574\u5185\u5b58\u5206\u914d\u7b56\u7565\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177top\u6216\u8005\u901a\u8fc7\/proc\u6587\u4ef6\u7cfb\u7edf\u6765\u76d1\u63a7\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u901a\u8fc7\/proc\u6587\u4ef6\u7cfb\u7edf\u8bfb\u53d6\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff1a<\/p>\n
        #include <stdio.h>\n\nint main() {\n  FILE *file = fopen(\"\/proc\/meminfo\", \"r\");\n  \n  if(file == NULL) {\n    printf(\"\u6253\u5f00\/proc\/meminfo\u6587\u4ef6\u5931\u8d25\uff01\n\");\n    return -1;\n  }\n  \n  char line[100];\n  \n  \/\/ \u9010\u884c\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\n  while(fgets(line, sizeof(line), file)) {\n    printf(\"%s\", line);  \/\/ \u8f93\u51fa\u6bcf\u4e00\u884c\u5185\u5bb9\n  }\n  \n  fclose(file);\n  \n  return 0;\n}<\/stdio.h><\/pre>\n
          \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
        \u4e8c\u3001Linux\u7cfb\u7edf\u7684\u6027\u80fd\u8c03\u4f18<\/p>\n
        \u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u6027\u80fd\u8c03\u4f18\u662f\u4e3a\u4e86\u63d0\u9ad8\u7cfb\u7edf\u7684\u54cd\u5e94\u901f\u5ea6\u548c\u5904\u7406\u80fd\u529b\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u6ee1\u8db3\u5e94\u7528\u9700\u6c42\u3002\u4e0b\u9762\u4ee5\u5177\u4f53\u4ee3\u7801\u793a\u4f8b\u7684\u5f62\u5f0f\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u89c1\u7684\u6027\u80fd\u8c03\u4f18\u64cd\u4f5c\u3002<\/p>\n
          \n
        1. \u4f18\u5316\u6587\u4ef6\u7cfb\u7edf<\/li>\n<\/ol>\n
          \u6587\u4ef6\u7cfb\u7edf\u7684\u6027\u80fd\u5bf9\u4e8e\u7cfb\u7edf\u7684\u6574\u4f53\u6027\u80fd\u5177\u6709\u91cd\u8981\u5f71\u54cd\u3002Linux\u7cfb\u7edf\u63d0\u4f9b\u4e86\u4e00\u4e9b\u53c2\u6570\u53ef\u4f9b\u8c03\u4f18\uff0c\u5982\u6587\u4ef6\u7cfb\u7edf\u7684\u8bfb\u5199\u7f13\u5b58\u548c\u65e5\u5fd7\u65b9\u5f0f\u7b49\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528tune2fs\u547d\u4ee4\u8c03\u6574\u6587\u4ef6\u7cfb\u7edf\u7684\u53c2\u6570\uff1a<\/p>\n
          # \u8c03\u6574\u6587\u4ef6\u7cfb\u7edf\u7684\u8bfb\u5199\u7f13\u5b58\ntune2fs -o journal_data_writeback \/dev\/sda1\n\n# \u8c03\u6574\u6587\u4ef6\u7cfb\u7edf\u7684\u65e5\u5fd7\u65b9\u5f0f\ntune2fs -o journal_dev \/dev\/sda1<\/pre>\n
            \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
            \n
          1. \u4f18\u5316\u7f51\u7edc\u914d\u7f6e<\/li>\n<\/ol>\n
            \u7f51\u7edc\u914d\u7f6e\u5bf9\u4e8e\u7cfb\u7edf\u7684\u6027\u80fd\u4e5f\u6709\u5f88\u5927\u5f71\u54cd\u3002Linux\u7cfb\u7edf\u63d0\u4f9b\u4e86\u4e00\u4e9b\u53c2\u6570\u53ef\u4f9b\u8c03\u4f18\uff0c\u5982\u7f51\u5361\u7684\u63a5\u6536\u7f13\u51b2\u533a\u5927\u5c0f\u548c\u53d1\u9001\u961f\u5217\u5927\u5c0f\u7b49\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528ifconfig\u547d\u4ee4\u8c03\u6574\u7f51\u5361\u7684\u63a5\u6536\u7f13\u51b2\u533a\u5927\u5c0f\uff1a<\/p>\n
            # \u8c03\u6574\u7f51\u5361\u7684\u63a5\u6536\u7f13\u51b2\u533a\u5927\u5c0f\nifconfig eth0 rxqueuelen 1000<\/pre>\n
              \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
              \n
            1. \u4f18\u5316\u8fdb\u7a0b\u8c03\u5ea6<\/li>\n<\/ol>\n
              \u8fdb\u7a0b\u8c03\u5ea6\u5bf9\u4e8e\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u54cd\u5e94\u901f\u5ea6\u81f3\u5173\u91cd\u8981\u3002Linux\u7cfb\u7edf\u63d0\u4f9b\u4e86\u4e00\u4e9b\u53c2\u6570\u53ef\u4f9b\u8c03\u4f18\uff0c\u5982\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u548c\u8c03\u5ea6\u7b56\u7565\u7b49\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528nice\u547d\u4ee4\u8c03\u6574\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff1a<\/p>\n
              # \u8c03\u6574\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\nnice -n -10 .\/program<\/pre>\n
                \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
              \u603b\u7ed3\uff1a<\/p>\n
              \u672c\u6587\u4ecb\u7ecd\u4e86\u5982\u4f55\u8fdb\u884cLinux\u7cfb\u7edf\u7684\u5185\u5b58\u7ba1\u7406\u548c\u6027\u80fd\u8c03\u4f18\uff0c\u5e76\u63d0\u4f9b\u4e86\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002\u901a\u8fc7\u5408\u7406\u7684\u5185\u5b58\u7ba1\u7406\u548c\u9002\u5f53\u7684\u6027\u80fd\u8c03\u4f18\uff0c\u53ef\u4ee5\u63d0\u9ad8Linux\u7cfb\u7edf\u7684\u6548\u7387\u548c\u7a33\u5b9a\u6027\uff0c\u4ece\u800c\u66f4\u597d\u5730\u6ee1\u8db3\u5e94\u7528\u9700\u6c42\u3002\u7136\u800c\uff0c\u7531\u4e8e\u4e0d\u540c\u7cfb\u7edf\u73af\u5883\u7684\u5dee\u5f02\u548c\u5e94\u7528\u573a\u666f\u7684\u591a\u6837\u6027\uff0c\u5177\u4f53\u7684\u5185\u5b58\u7ba1\u7406\u548c\u6027\u80fd\u8c03\u4f18\u64cd\u4f5c\u53ef\u80fd\u4f1a\u6709\u6240\u4e0d\u540c\uff0c\u9700\u8981\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8fdb\u884c\u8c03\u6574\u548c\u4f18\u5316\u3002<\/p>\n
              \u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u8fdb\u884cLinux\u7cfb\u7edf\u7684\u5185\u5b58\u7ba1\u7406\u548c\u6027\u80fd\u8c03\u4f18\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
              \u5982\u4f55\u8fdb\u884cLinux\u7cfb\u7edf\u7684\u5185\u5b58\u7ba1\u7406\u548c\u6027\u80fd\u8c03\u4f18 \u968f\u7740\u8ba1\u7b97\u673a\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\uff0cLinux\u64cd\u4f5c\u7cfb\u7edf\u5728\u670d\u52a1\u5668\u9886\u57df\u7684\u5e94\u7528\u8d8a\u6765\u8d8a\u5e7f\u6cdb\u3002\u800c\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u5185\u5b58\u7ba1\u7406\u548c\u6027\u80fd\u8c03\u4f18\u662f\u4fdd\u8bc1\u7cfb\u7edf\u6b63\u5e38\u8fd0\u884c\u548c\u9ad8\u6548\u5de5\u4f5c\u7684\u91cd\u8981\u73af\u8282\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u8fdb\u884cLinux\u7cfb\u7edf\u7684\u5185\u5b58\u7ba1\u7406\u548c\u6027\u80fd\u8c03\u4f18\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002 \u4e00\u3001Linux\u7cfb\u7edf\u7684\u5185\u5b58\u7ba1\u7406 \u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u5185\u5b58\u7ba1\u7406\u662f\u64cd\u4f5c\u7cfb\u7edf\u7684\u6838\u5fc3\u529f\u80fd\u4e4b\u4e00\u3002\u5b83\u4e3b\u8981\u5305\u62ec\u5185\u5b58\u5206\u914d\u3001\u5185\u5b58\u56de\u6536\u548c\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\u76d1\u63a7\u7b49\u65b9\u9762\u3002\u4e0b\u9762\u4ee5\u5177\u4f53\u4ee3\u7801\u793a\u4f8b\u7684\u5f62\u5f0f\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u89c1\u7684\u5185\u5b58\u7ba1\u7406\u64cd\u4f5c\u3002 \u5185\u5b58\u5206\u914d \u5185\u5b58\u5206\u914d\u662f\u6307\u64cd\u4f5c\u7cfb\u7edf\u5c06\u7269\u7406\u5185\u5b58\u5206\u914d\u7ed9\u5e94\u7528\u7a0b\u5e8f\u4f7f\u7528\u3002Linux\u7cfb\u7edf\u63d0\u4f9b\u4e86\u591a\u79cd\u5185\u5b58\u5206\u914d\u51fd\u6570\uff0c\u5982malloc()\u3001calloc()\u3001realloc()\u7b49\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528malloc()\u51fd\u6570\u6765\u5206\u914d\u4e00\u5757\u5185\u5b58\uff1a #include <stdio.h> #include <stdlib.h> int main() { int size = 100; int *ptr = malloc(sizeof(int) * size); if(ptr == NULL) { printf(“\u5185\u5b58\u5206\u914d\u5931\u8d25\uff01 “); return -1; } printf(“\u5185\u5b58\u5206\u914d\u6210\u529f\uff01 “); \/\/ \u4f7f\u7528ptr\u8fdb\u884c\u5185\u5b58\u64cd\u4f5c free(ptr); \/\/ \u91ca\u653e\u5185\u5b58 return 0; }<\/stdlib.h><\/stdio.h> \u767b\u5f55\u540e\u590d\u5236 \u5185\u5b58\u56de\u6536 \u5185\u5b58\u56de\u6536\u662f\u6307\u64cd\u4f5c\u7cfb\u7edf\u5c06\u4e0d\u518d\u9700\u8981\u7684\u5185\u5b58\u91ca\u653e\uff0c\u4ee5\u4fbf\u518d\u6b21\u5206\u914d\u7ed9\u5176\u4ed6\u5e94\u7528\u7a0b\u5e8f\u4f7f\u7528\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u4f7f\u7528free()\u51fd\u6570\u6765\u56de\u6536\u5185\u5b58\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528free()\u51fd\u6570\u91ca\u653e\u4e4b\u524d\u5206\u914d\u7684\u5185\u5b58\uff1a #include <stdio.h> #include <stdlib.h> int main() { int size = […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-17284","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/17284","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=17284"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/17284\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=17284"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=17284"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=17284"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}