{"id":51603,"date":"2024-12-03T09:55:32","date_gmt":"2024-12-03T01:55:32","guid":{"rendered":"https:\/\/fwq.ai\/blog\/51603\/"},"modified":"2024-12-03T09:55:32","modified_gmt":"2024-12-03T01:55:32","slug":"linux%e7%b3%bb%e7%bb%9f%e6%80%a7%e8%83%bd%e5%8f%97%e8%bf%9b%e7%a8%8b%e4%bc%98%e5%85%88%e7%ba%a7%e7%9a%84%e5%bd%b1%e5%93%8d","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/51603\/","title":{"rendered":"Linux\u7cfb\u7edf\u6027\u80fd\u53d7\u8fdb\u7a0b\u4f18\u5148\u7ea7\u7684\u5f71\u54cd"},"content":{"rendered":"

<\/b> <\/p>\n

Linux\u7cfb\u7edf\u6027\u80fd\u53d7\u8fdb\u7a0b\u4f18\u5148\u7ea7\u7684\u5f71\u54cd<\/h1>\n

\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300aLinux\u7cfb\u7edf\u6027\u80fd\u53d7\u8fdb\u7a0b\u4f18\u5148\u7ea7\u7684\u5f71\u54cd\u300b\uff0c\u8986\u76d6\u4e86\u6587\u7ae0\u7684\u5e38\u89c1\u57fa\u7840\u77e5\u8bc6\uff0c\u5176\u5b9e\u4e00\u4e2a\u8bed\u8a00\u7684\u5168\u90e8\u77e5\u8bc6\u70b9\u4e00\u7bc7\u6587\u7ae0\u662f\u4e0d\u53ef\u80fd\u8bf4\u5b8c\u7684\uff0c\u4f46\u5e0c\u671b\u901a\u8fc7\u8fd9\u4e9b\u95ee\u9898\uff0c\u8ba9\u8bfb\u8005\u5bf9\u81ea\u5df1\u7684\u638c\u63e1\u7a0b\u5ea6\u6709\u4e00\u5b9a\u7684\u8ba4\u8bc6(B \u6570)\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u66f4\u597d\u7684\u638c\u63e1\u5b83\u3002<\/p>\n

\u8fdb\u7a0b\u4f18\u5148\u7ea7\u5bf9Linux\u7cfb\u7edf\u6027\u80fd\u7684\u5f71\u54cd<\/p>\n

\u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e2d\uff0c\u8fdb\u7a0b\u7684\u8c03\u5ea6\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u95ee\u9898\uff0c\u800c\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u5219\u662f\u5f71\u54cd\u8fdb\u7a0b\u8c03\u5ea6\u7684\u5173\u952e\u56e0\u7d20\u4e4b\u4e00\u3002Linux\u7cfb\u7edf\u4e2d\uff0c\u8fdb\u7a0b\u53ef\u4ee5\u5206\u4e3a\u5b9e\u65f6\u8fdb\u7a0b\u548c\u666e\u901a\u8fdb\u7a0b\uff0c\u800c\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u5219\u662f\u51b3\u5b9a\u7cfb\u7edf\u8c03\u5ea6\u7a0b\u5e8f\u5982\u4f55\u5b89\u6392\u8fdb\u7a0b\u6267\u884c\u7684\u4e00\u4e2a\u91cd\u8981\u53c2\u6570\u3002<\/p>\n

\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u7528\u4e00\u4e2a\u6570\u503c\u8868\u793a\uff0c\u8303\u56f4\u4e00\u822c\u4e3a-20\uff08\u6700\u9ad8\u4f18\u5148\u7ea7\uff09\u523019\uff08\u6700\u4f4e\u4f18\u5148\u7ea7\uff09\u3002\u6570\u503c\u8d8a\u5c0f\uff0c\u8868\u793a\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u8d8a\u9ad8\uff0c\u7cfb\u7edf\u4f1a\u66f4\u9891\u7e41\u5730\u8c03\u5ea6\u8fd9\u4e9b\u8fdb\u7a0b\u6267\u884c\u3002<\/p>\n

\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u5bf9Linux\u7cfb\u7edf\u6027\u80fd\u7684\u5f71\u54cd\u4e3b\u8981\u4f53\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n

    \n
  1. \u54cd\u5e94\u65f6\u95f4
    \u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u9ad8\uff0c\u7cfb\u7edf\u8c03\u5ea6\u7a0b\u5e8f\u66f4\u503e\u5411\u4e8e\u8ba9\u8fd9\u4e9b\u8fdb\u7a0b\u83b7\u5f97CPU\u65f6\u95f4\u7247\uff0c\u4ece\u800c\u66f4\u5feb\u5730\u54cd\u5e94\u7528\u6237\u64cd\u4f5c\u3002\u56e0\u6b64\uff0c\u5728\u4e00\u4e9b\u9700\u8981\u5feb\u901f\u54cd\u5e94\u7684\u5e94\u7528\u573a\u666f\u4e0b\uff0c\u63d0\u9ad8\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u53ef\u4ee5\u660e\u663e\u5730\u6539\u5584\u7cfb\u7edf\u7684\u54cd\u5e94\u901f\u5ea6\u3002<\/li>\n
  2. \u7cfb\u7edf\u541e\u5410\u91cf
    \u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u9ad8\uff0c\u4f1a\u66f4\u9891\u7e41\u5730\u88ab\u7cfb\u7edf\u8c03\u5ea6\u7a0b\u5e8f\u6267\u884c\uff0c\u56e0\u6b64\u7cfb\u7edf\u53ef\u80fd\u4f1a\u66f4\u591a\u5730\u82b1\u8d39\u5728\u9ad8\u4f18\u5148\u7ea7\u8fdb\u7a0b\u4e0a\uff0c\u4ece\u800c\u964d\u4f4e\u7cfb\u7edf\u6574\u4f53\u7684\u541e\u5410\u91cf\u3002\u5728\u4e00\u4e9b\u9700\u8981\u5927\u91cf\u8ba1\u7b97\u4efb\u52a1\u7684\u573a\u666f\u4e0b\uff0c\u8fc7\u591a\u5730\u63d0\u9ad8\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u541e\u5410\u91cf\u4e0b\u964d\u3002<\/li>\n
  3. \u7cfb\u7edf\u7a33\u5b9a\u6027
    \u8fc7\u591a\u5730\u63d0\u9ad8\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u5176\u4ed6\u8fdb\u7a0b\u5f97\u4e0d\u5230\u5145\u5206\u7684CPU\u65f6\u95f4\u7247\uff0c\u751a\u81f3\u51fa\u73b0\u201c\u9965\u997f\u201d\u73b0\u8c61\uff0c\u4ece\u800c\u5f71\u54cd\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u3002\u56e0\u6b64\uff0c\u5408\u7406\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u662f\u7ef4\u6301\u7cfb\u7edf\u7a33\u5b9a\u6027\u7684\u91cd\u8981\u56e0\u7d20\u4e4b\u4e00\u3002<\/li>\n<\/ol>\n

    \u4e0b\u9762\u901a\u8fc7\u4e00\u4e2a\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u6765\u5c55\u793a\u8fdb\u7a0b\u4f18\u5148\u7ea7\u5bf9Linux\u7cfb\u7edf\u6027\u80fd\u7684\u5f71\u54cd\uff1a<\/p>\n

    #include <stdio.h>\n#include <unistd.h>\n\nint main() {\n    int i;\n    pid_t pid;\n\n    pid = fork();\n\n    if (pid < 0) {\n        fprintf(stderr, \"Fork failed\n\");\n        return 1;\n    } else if (pid == 0) {\n        \/\/ \u5b50\u8fdb\u7a0b\n        nice(10); \/\/ \u63d0\u9ad8\u5b50\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\n        for (i = 0; i < 5; i++) {\n            printf(\"\u5b50\u8fdb\u7a0b\u6b63\u5728\u8fd0\u884c\n\");\n            sleep(1);\n        }\n    } else {\n        \/\/ \u7236\u8fdb\u7a0b\n        for (i = 0; i < 5; i++) {\n            printf(\"\u7236\u8fdb\u7a0b\u6b63\u5728\u8fd0\u884c\n\");\n            sleep(1);\n        }\n    }\n\n    return 0;\n}<\/pre>\n
    \u5728\u8fd9\u4e2a\u4ee3\u7801\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u5b50\u8fdb\u7a0b\uff0c\u5728\u5b50\u8fdb\u7a0b\u4e2d\u901a\u8fc7nice(10)<\/code>\u51fd\u6570\u63d0\u9ad8\u4e86\u5b50\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u3002\u901a\u8fc7\u8fd0\u884c\u8fd9\u6bb5\u4ee3\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u89c2\u5bdf\u5230\u5b50\u8fdb\u7a0b\u4f1a\u66f4\u9891\u7e41\u5730\u6267\u884c\uff0c\u56e0\u4e3a\u5176\u4f18\u5148\u7ea7\u66f4\u9ad8\uff0c\u4ece\u800c\u5f71\u54cd\u4e86\u7cfb\u7edf\u7684\u6027\u80fd\u8868\u73b0\u3002<\/p>\n
    \u901a\u8fc7\u5408\u7406\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u8c03\u6574\u7cfb\u7edf\u7684\u6027\u80fd\u8868\u73b0\uff0c\u63d0\u9ad8\u7cfb\u7edf\u7684\u54cd\u5e94\u901f\u5ea6\u6216\u7cfb\u7edf\u541e\u5410\u91cf\uff0c\u540c\u65f6\u4e5f\u9700\u8981\u6ce8\u610f\u5728\u63d0\u9ad8\u4f18\u5148\u7ea7\u7684\u540c\u65f6\u8981\u907f\u514d\u5bf9\u7cfb\u7edf\u7a33\u5b9a\u6027\u9020\u6210\u5f71\u54cd\u3002<\/p>\n
    \u8fdb\u7a0b\u4f18\u5148\u7ea7\u5bf9Linux\u7cfb\u7edf\u6027\u80fd\u7684\u5f71\u54cd\u662f\u4e00\u4e2a\u590d\u6742\u7684\u95ee\u9898\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u6765\u5408\u7406\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff0c\u4ee5\u8fbe\u5230\u6700\u4f73\u7684\u7cfb\u7edf\u6027\u80fd\u8868\u73b0\u3002<\/p>\n
    \u672c\u7bc7\u5173\u4e8e\u300aLinux\u7cfb\u7edf\u6027\u80fd\u53d7\u8fdb\u7a0b\u4f18\u5148\u7ea7\u7684\u5f71\u54cd\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/p>\n
    \n
    <\/dt>\n
    \n   Golang \u4e2d\u51fa\u73b0”\u6253\u5f00\u6587\u4ef6\u8fc7\u591a”\u9519\u8bef\uff0c\u5b9e\u9645\u4e0a\u672a\u6253\u5f00\u4efb\u4f55\u6587\u4ef6\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
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pid_t pid; pid = fork(); if (pid < 0) { fprintf(stderr, “Fork failed “); return 1; } else if (pid == 0) { \/\/ \u5b50\u8fdb\u7a0b nice(10); \/\/ \u63d0\u9ad8\u5b50\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7 for (i = 0; i < 5; […]<\/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-51603","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/51603","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=51603"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/51603\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=51603"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=51603"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=51603"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}