{"id":17716,"date":"2024-11-18T14:38:01","date_gmt":"2024-11-18T06:38:01","guid":{"rendered":"https:\/\/fwq.ai\/blog\/17716\/"},"modified":"2024-11-18T14:38:01","modified_gmt":"2024-11-18T06:38:01","slug":"linux%e8%bf%9b%e7%a8%8b%e4%bc%98%e5%85%88%e7%ba%a7%e8%b0%83%e6%95%b4%e6%96%b9%e6%b3%95%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/17716\/","title":{"rendered":"Linux\u8fdb\u7a0b\u4f18\u5148\u7ea7\u8c03\u6574\u65b9\u6cd5\u8be6\u89e3"},"content":{"rendered":"

\"Linux\u8fdb\u7a0b\u4f18\u5148\u7ea7\u8c03\u6574\u65b9\u6cd5\u8be6\u89e3\u63d2\u56fe\"<\/p>\n

Linux\u8fdb\u7a0b\u4f18\u5148\u7ea7\u8c03\u6574\u65b9\u6cd5\u8be6\u89e3<\/p>\n

\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u51b3\u5b9a\u4e86\u5176\u5728\u7cfb\u7edf\u4e2d\u7684\u6267\u884c\u987a\u5e8f\u548c\u8d44\u6e90\u5206\u914d\u60c5\u51b5\u3002\u5408\u7406\u8c03\u6574\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u6548\u7387\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdLinux\u4e2d\u5982\u4f55\u8c03\u6574\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u4e00\u3001\u8fdb\u7a0b\u4f18\u5148\u7ea7\u6982\u8ff0<\/p>\n

\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u6bcf\u4e2a\u8fdb\u7a0b\u90fd\u6709\u4e00\u4e2a\u4e0e\u4e4b\u76f8\u5173\u8054\u7684\u4f18\u5148\u7ea7\u3002\u4f18\u5148\u7ea7\u7684\u8303\u56f4\u4e00\u822c\u662f-20\u523019\uff0c\u5176\u4e2d-20\u8868\u793a\u6700\u9ad8\u4f18\u5148\u7ea7\uff0c19\u8868\u793a\u6700\u4f4e\u4f18\u5148\u7ea7\u3002\u8f83\u9ad8\u4f18\u5148\u7ea7\u7684\u8fdb\u7a0b\u4f1a\u66f4\u9891\u7e41\u5730\u83b7\u5f97CPU\u8d44\u6e90\uff0c\u4ece\u800c\u66f4\u5feb\u5730\u6267\u884c\u5b8c\u6210\u4efb\u52a1\u3002<\/p>\n

\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528nice\u547d\u4ee4\u548crenice\u547d\u4ee4\u5206\u522b\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u9759\u6001\u4f18\u5148\u7ea7\u548c\u52a8\u6001\u4f18\u5148\u7ea7\u3002\u9759\u6001\u4f18\u5148\u7ea7\u662f\u8fdb\u7a0b\u521b\u5efa\u65f6\u786e\u5b9a\u7684\uff0c\u4e0d\u4f1a\u53d1\u751f\u53d8\u5316\uff1b\u800c\u52a8\u6001\u4f18\u5148\u7ea7\u53ef\u4ee5\u6839\u636e\u7cfb\u7edf\u8d1f\u8f7d\u60c5\u51b5\u8fdb\u884c\u52a8\u6001\u8c03\u6574\u3002<\/p>\n

\u4e8c\u3001\u8fdb\u7a0b\u4f18\u5148\u7ea7\u8c03\u6574\u65b9\u6cd5<\/p>\n

    \n
  1. \u4f7f\u7528nice\u547d\u4ee4\u8bbe\u7f6e\u9759\u6001\u4f18\u5148\u7ea7<\/li>\n<\/ol>\n

    nice\u547d\u4ee4\u7528\u4e8e\u8bbe\u5b9a\u8fdb\u7a0b\u7684\u9759\u6001\u4f18\u5148\u7ea7\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n

    nice -n  <\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u5176\u4e2d\uff0c-n\u540e\u9762\u8ddf\u7740\u7684\u6570\u5b57\u5373\u4e3a\u8981\u8bbe\u7f6e\u7684\u4f18\u5148\u7ea7\u503c\uff0c\u53d6\u503c\u8303\u56f4\u4e3a-20\u523019\uff0c\u547d\u4ee4\u4e3a\u8981\u6267\u884c\u7684\u7a0b\u5e8f\u6216\u811a\u672c\u3002<\/p>\n
    \u6bd4\u5982\uff0c\u5c06\u4e00\u4e2a\u7a0b\u5e8f\u7684\u9759\u6001\u4f18\u5148\u7ea7\u8bbe\u7f6e\u4e3a5\uff1a<\/p>\n
    nice -n 5 .\/my_program<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \n
    1. \u4f7f\u7528renice\u547d\u4ee4\u8c03\u6574\u52a8\u6001\u4f18\u5148\u7ea7<\/li>\n<\/ol>\n
      renice\u547d\u4ee4\u7528\u4e8e\u8c03\u6574\u5df2\u7ecf\u8fd0\u884c\u4e2d\u8fdb\u7a0b\u7684\u52a8\u6001\u4f18\u5148\u7ea7\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
      renice -n  -p <\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \u5176\u4e2d\uff0c-n\u540e\u9762\u8ddf\u7740\u7684\u6570\u5b57\u5373\u4e3a\u8981\u8bbe\u7f6e\u7684\u4f18\u5148\u7ea7\u503c\uff0c\u53d6\u503c\u8303\u56f4\u4e3a-20\u523019\uff0c-p\u540e\u9762\u8ddf\u7740\u7684\u662f\u8fdb\u7a0b\u7684ID\u4fe1\u606f\u3002<\/p>\n
      \u4f8b\u5982\uff0c\u5c06\u8fdb\u7a0bID\u4e3a1234\u7684\u8fdb\u7a0b\u7684\u52a8\u6001\u4f18\u5148\u7ea7\u8c03\u6574\u4e3a10\uff1a<\/p>\n
      renice -n 10 -p 1234<\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236    \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
        \n
      1. \u4f7f\u7528top\u547d\u4ee4\u67e5\u770b\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7<\/li>\n<\/ol>\n
        \u901a\u8fc7top\u547d\u4ee4\u53ef\u4ee5\u67e5\u770b\u7cfb\u7edf\u4e2d\u8fd0\u884c\u4e2d\u8fdb\u7a0b\u7684\u4fe1\u606f\uff0c\u5305\u62ec\u8fdb\u7a0b\u7684PID\u3001\u4f18\u5148\u7ea7\u7b49\u3002\u53ef\u4ee5\u4f7f\u7528top\u547d\u4ee4\u627e\u5230\u8981\u8c03\u6574\u4f18\u5148\u7ea7\u7684\u8fdb\u7a0b\u7684PID\uff0c\u7136\u540e\u4f7f\u7528renice\u547d\u4ee4\u8fdb\u884c\u8c03\u6574\u3002<\/p>\n
        \u4e09\u3001\u5b9e\u4f8b\u64cd\u4f5c<\/p>\n
        \u4e0b\u9762\u4ee5\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u6765\u8bf4\u660e\u5982\u4f55\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u3002\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u811a\u672c\u6587\u4ef6test.sh\uff0c\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n
        #!\/bin\/bash\necho \"Hello, World!\"<\/pre>\n
          \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
          \n
        1. \u9996\u5148\uff0c\u4f7f\u7528nice\u547d\u4ee4\u8bbe\u5b9a\u811a\u672c\u6587\u4ef6\u7684\u9759\u6001\u4f18\u5148\u7ea7\uff1a<\/li>\n<\/ol>\n
          nice -n 5 .\/test.sh<\/pre>\n
            \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
          \u8fd9\u6837\u811a\u672c\u6587\u4ef6test.sh\u4f1a\u4ee5\u4f18\u5148\u7ea75\u7684\u9759\u6001\u4f18\u5148\u7ea7\u6765\u6267\u884c\u3002<\/p>\n
            \n
          1. \u4f7f\u7528top\u547d\u4ee4\u67e5\u770b\u811a\u672c\u6587\u4ef6\u7684PID\uff1a<\/li>\n<\/ol>\n
            top<\/pre>\n
              \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
            \u901a\u8fc7top\u547d\u4ee4\u627e\u5230test.sh\u7684PID\uff0c\u5047\u8bbe\u4e3a1234\u3002<\/p>\n
              \n
            1. \u4f7f\u7528renice\u547d\u4ee4\u8c03\u6574test.sh\u7684\u52a8\u6001\u4f18\u5148\u7ea7\u4e3a10\uff1a<\/li>\n<\/ol>\n
              renice -n 10 -p 1234<\/pre>\n
                \u767b\u5f55\u540e\u590d\u5236    \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
              \u8fd9\u6837\uff0ctest.sh\u8fdb\u7a0b\u7684\u52a8\u6001\u4f18\u5148\u7ea7\u5c06\u88ab\u8c03\u6574\u4e3a10\u3002<\/p>\n
              \u56db\u3001\u603b\u7ed3<\/p>\n
              \u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\uff0c\u6211\u4eec\u4e86\u89e3\u4e86\u5728Linux\u7cfb\u7edf\u4e2d\u5982\u4f55\u8c03\u6574\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u3002\u5408\u7406\u5730\u8bbe\u5b9a\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u54cd\u5e94\u901f\u5ea6\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u6839\u636e\u7cfb\u7edf\u7684\u8d1f\u8f7d\u60c5\u51b5\u548c\u4efb\u52a1\u7684\u91cd\u8981\u6027\u6765\u7075\u6d3b\u8c03\u6574\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff0c\u4ee5\u8fbe\u5230\u66f4\u597d\u7684\u8fd0\u884c\u6548\u679c\u3002<\/p>\n
              \u5e0c\u671b\u672c\u6587\u7684\u5185\u5bb9\u80fd\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3Linux\u8fdb\u7a0b\u4f18\u5148\u7ea7\u8c03\u6574\u65b9\u6cd5\uff0c\u5e76\u80fd\u591f\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7075\u6d3b\u8fd0\u7528\u3002<\/p>\n
              \u4ee5\u4e0a\u5c31\u662fLinux\u8fdb\u7a0b\u4f18\u5148\u7ea7\u8c03\u6574\u65b9\u6cd5\u8be6\u89e3\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":"
              Linux\u8fdb\u7a0b\u4f18\u5148\u7ea7\u8c03\u6574\u65b9\u6cd5\u8be6\u89e3 \u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u51b3\u5b9a\u4e86\u5176\u5728\u7cfb\u7edf\u4e2d\u7684\u6267\u884c\u987a\u5e8f\u548c\u8d44\u6e90\u5206\u914d\u60c5\u51b5\u3002\u5408\u7406\u8c03\u6574\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u6548\u7387\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdLinux\u4e2d\u5982\u4f55\u8c03\u6574\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002 \u4e00\u3001\u8fdb\u7a0b\u4f18\u5148\u7ea7\u6982\u8ff0 \u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u6bcf\u4e2a\u8fdb\u7a0b\u90fd\u6709\u4e00\u4e2a\u4e0e\u4e4b\u76f8\u5173\u8054\u7684\u4f18\u5148\u7ea7\u3002\u4f18\u5148\u7ea7\u7684\u8303\u56f4\u4e00\u822c\u662f-20\u523019\uff0c\u5176\u4e2d-20\u8868\u793a\u6700\u9ad8\u4f18\u5148\u7ea7\uff0c19\u8868\u793a\u6700\u4f4e\u4f18\u5148\u7ea7\u3002\u8f83\u9ad8\u4f18\u5148\u7ea7\u7684\u8fdb\u7a0b\u4f1a\u66f4\u9891\u7e41\u5730\u83b7\u5f97CPU\u8d44\u6e90\uff0c\u4ece\u800c\u66f4\u5feb\u5730\u6267\u884c\u5b8c\u6210\u4efb\u52a1\u3002 \u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528nice\u547d\u4ee4\u548crenice\u547d\u4ee4\u5206\u522b\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u9759\u6001\u4f18\u5148\u7ea7\u548c\u52a8\u6001\u4f18\u5148\u7ea7\u3002\u9759\u6001\u4f18\u5148\u7ea7\u662f\u8fdb\u7a0b\u521b\u5efa\u65f6\u786e\u5b9a\u7684\uff0c\u4e0d\u4f1a\u53d1\u751f\u53d8\u5316\uff1b\u800c\u52a8\u6001\u4f18\u5148\u7ea7\u53ef\u4ee5\u6839\u636e\u7cfb\u7edf\u8d1f\u8f7d\u60c5\u51b5\u8fdb\u884c\u52a8\u6001\u8c03\u6574\u3002 \u4e8c\u3001\u8fdb\u7a0b\u4f18\u5148\u7ea7\u8c03\u6574\u65b9\u6cd5 \u4f7f\u7528nice\u547d\u4ee4\u8bbe\u7f6e\u9759\u6001\u4f18\u5148\u7ea7 nice\u547d\u4ee4\u7528\u4e8e\u8bbe\u5b9a\u8fdb\u7a0b\u7684\u9759\u6001\u4f18\u5148\u7ea7\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a nice -n \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff0c-n\u540e\u9762\u8ddf\u7740\u7684\u6570\u5b57\u5373\u4e3a\u8981\u8bbe\u7f6e\u7684\u4f18\u5148\u7ea7\u503c\uff0c\u53d6\u503c\u8303\u56f4\u4e3a-20\u523019\uff0c\u547d\u4ee4\u4e3a\u8981\u6267\u884c\u7684\u7a0b\u5e8f\u6216\u811a\u672c\u3002 \u6bd4\u5982\uff0c\u5c06\u4e00\u4e2a\u7a0b\u5e8f\u7684\u9759\u6001\u4f18\u5148\u7ea7\u8bbe\u7f6e\u4e3a5\uff1a nice -n 5 .\/my_program \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528renice\u547d\u4ee4\u8c03\u6574\u52a8\u6001\u4f18\u5148\u7ea7 renice\u547d\u4ee4\u7528\u4e8e\u8c03\u6574\u5df2\u7ecf\u8fd0\u884c\u4e2d\u8fdb\u7a0b\u7684\u52a8\u6001\u4f18\u5148\u7ea7\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a renice -n -p \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff0c-n\u540e\u9762\u8ddf\u7740\u7684\u6570\u5b57\u5373\u4e3a\u8981\u8bbe\u7f6e\u7684\u4f18\u5148\u7ea7\u503c\uff0c\u53d6\u503c\u8303\u56f4\u4e3a-20\u523019\uff0c-p\u540e\u9762\u8ddf\u7740\u7684\u662f\u8fdb\u7a0b\u7684ID\u4fe1\u606f\u3002 \u4f8b\u5982\uff0c\u5c06\u8fdb\u7a0bID\u4e3a1234\u7684\u8fdb\u7a0b\u7684\u52a8\u6001\u4f18\u5148\u7ea7\u8c03\u6574\u4e3a10\uff1a renice -n 10 -p 1234 \u767b\u5f55\u540e\u590d\u5236 \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528top\u547d\u4ee4\u67e5\u770b\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7 \u901a\u8fc7top\u547d\u4ee4\u53ef\u4ee5\u67e5\u770b\u7cfb\u7edf\u4e2d\u8fd0\u884c\u4e2d\u8fdb\u7a0b\u7684\u4fe1\u606f\uff0c\u5305\u62ec\u8fdb\u7a0b\u7684PID\u3001\u4f18\u5148\u7ea7\u7b49\u3002\u53ef\u4ee5\u4f7f\u7528top\u547d\u4ee4\u627e\u5230\u8981\u8c03\u6574\u4f18\u5148\u7ea7\u7684\u8fdb\u7a0b\u7684PID\uff0c\u7136\u540e\u4f7f\u7528renice\u547d\u4ee4\u8fdb\u884c\u8c03\u6574\u3002 \u4e09\u3001\u5b9e\u4f8b\u64cd\u4f5c \u4e0b\u9762\u4ee5\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u6765\u8bf4\u660e\u5982\u4f55\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u3002\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u811a\u672c\u6587\u4ef6test.sh\uff0c\u5185\u5bb9\u5982\u4e0b\uff1a #!\/bin\/bash echo “Hello, World!” \u767b\u5f55\u540e\u590d\u5236 \u9996\u5148\uff0c\u4f7f\u7528nice\u547d\u4ee4\u8bbe\u5b9a\u811a\u672c\u6587\u4ef6\u7684\u9759\u6001\u4f18\u5148\u7ea7\uff1a nice -n 5 .\/test.sh \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u6837\u811a\u672c\u6587\u4ef6test.sh\u4f1a\u4ee5\u4f18\u5148\u7ea75\u7684\u9759\u6001\u4f18\u5148\u7ea7\u6765\u6267\u884c\u3002 \u4f7f\u7528top\u547d\u4ee4\u67e5\u770b\u811a\u672c\u6587\u4ef6\u7684PID\uff1a top \u767b\u5f55\u540e\u590d\u5236 \u901a\u8fc7top\u547d\u4ee4\u627e\u5230test.sh\u7684PID\uff0c\u5047\u8bbe\u4e3a1234\u3002 \u4f7f\u7528renice\u547d\u4ee4\u8c03\u6574test.sh\u7684\u52a8\u6001\u4f18\u5148\u7ea7\u4e3a10\uff1a renice 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