{"id":63211,"date":"2025-04-29T15:05:18","date_gmt":"2025-04-29T07:05:18","guid":{"rendered":"https:\/\/fwq.ai\/blog\/63211\/"},"modified":"2025-04-29T15:05:18","modified_gmt":"2025-04-29T07:05:18","slug":"%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3linux%e4%b8%ad%e7%9a%84%e8%bf%9b%e7%a8%8b%e4%bc%98%e5%85%88%e7%ba%a7-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/63211\/","title":{"rendered":"\u6df1\u5165\u7406\u89e3Linux\u4e2d\u7684\u8fdb\u7a0b\u4f18\u5148\u7ea7"},"content":{"rendered":"

\"\u6df1\u5165\u7406\u89e3Linux\u4e2d\u7684\u8fdb\u7a0b\u4f18\u5148\u7ea7\u63d2\u56fe\"<\/p>\n

\u6df1\u5165\u7406\u89e3Linux\u4e2d\u7684\u8fdb\u7a0b\u4f18\u5148\u7ea7\uff0c\u9700\u8981\u5177\u4f53\u4ee3\u7801\u793a\u4f8b<\/p>\n

\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u662f\u975e\u5e38\u91cd\u8981\u7684\u4e00\u4e2a\u6982\u5ff5\u3002\u901a\u8fc7\u5408\u7406\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63a7\u5236\u7cfb\u7edf\u8d44\u6e90\u7684\u5206\u914d\uff0c\u63d0\u9ad8\u7cfb\u7edf\u7684\u6027\u80fd\u8868\u73b0\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8Linux\u4e2d\u7684\u8fdb\u7a0b\u4f18\u5148\u7ea7\u6982\u5ff5\uff0c\u5e76\u901a\u8fc7\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u8fdb\u884c\u6f14\u793a\u548c\u5b9e\u8df5\u3002<\/p>\n

\u4e00\u3001Linux\u4e2d\u7684\u8fdb\u7a0b\u4f18\u5148\u7ea7\u6982\u5ff5<\/p>\n

\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u8303\u56f4\u662f-20\u523019\uff0c\u5176\u4e2d-20\u4ee3\u8868\u6700\u9ad8\u4f18\u5148\u7ea7\uff0c19\u4ee3\u8868\u6700\u4f4e\u4f18\u5148\u7ea7\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6240\u6709\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u5747\u4e3a0\u3002\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u51b3\u5b9a\u4e86\u5176\u5728\u7cfb\u7edf\u4e2d\u83b7\u5f97CPU\u65f6\u95f4\u7247\u7684\u5927\u5c0f\uff0c\u4f18\u5148\u7ea7\u8d8a\u9ad8\u7684\u8fdb\u7a0b\u76f8\u5bf9\u6765\u8bf4\u4f1a\u83b7\u5f97\u66f4\u591a\u7684CPU\u65f6\u95f4\u3002<\/p>\n

Linux\u5185\u6838\u901a\u8fc7\u8c03\u5ea6\u7b97\u6cd5\u6765\u51b3\u5b9a\u54ea\u4e2a\u8fdb\u7a0b\u83b7\u5f97CPU\u65f6\u95f4\uff0c\u5e76\u4e14\u53ef\u4ee5\u6839\u636e\u7cfb\u7edf\u8d1f\u8f7d\u548c\u6027\u80fd\u9700\u6c42\u52a8\u6001\u5730\u8c03\u6574\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u3002\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u53ef\u4ee5\u901a\u8fc7nice\u503c\u6765\u8bbe\u7f6e\uff0cnice\u503c\u8d8a\u4f4e\u4ee3\u8868\u4f18\u5148\u7ea7\u8d8a\u9ad8\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002<\/p>\n

\u4e8c\u3001\u8fdb\u7a0b\u4f18\u5148\u7ea7\u7684\u5177\u4f53\u8bbe\u7f6e\u548c\u83b7\u53d6<\/p>\n

\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528nice\u547d\u4ee4\u6765\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u5c06\u8fdb\u7a0b\u7684nice\u503c\u8bbe\u7f6e\u4e3a-10\uff1a<\/p>\n

$ nice -n -10 .\/my_program<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u6b64\u65f6\uff0c\u8fdb\u7a0bmy_program\u7684\u4f18\u5148\u7ea7\u5c06\u4f1a\u63d0\u9ad8\uff0c\u83b7\u5f97\u66f4\u591a\u7684CPU\u65f6\u95f4\u3002\u9664\u4e86\u901a\u8fc7nice\u547d\u4ee4\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u7cfb\u7edf\u8c03\u7528sched_setscheduler\u6765\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u8c03\u5ea6\u7b56\u7565\u548c\u4f18\u5148\u7ea7\u3002<\/p>\n
\u5728C\u8bed\u8a00\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528sched_setscheduler\u7cfb\u7edf\u8c03\u7528\u6765\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u8c03\u5ea6\u53c2\u6570\uff0c\u5177\u4f53\u4ee3\u7801\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
#include <stdio.h>\n#include <sched.h>\n\nint main() {\n    struct sched_param param;\n    param.sched_priority = 10; \/\/ \u8bbe\u7f6e\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u4e3a10\n\n    if(sched_setscheduler(0, SCHED_FIFO, &amp;param) <p>\u8be5\u7a0b\u5e8f\u901a\u8fc7\u8c03\u7528sched_setscheduler\u51fd\u6570\u5c06\u8fdb\u7a0b\u7684\u8c03\u5ea6\u7b56\u7565\u8bbe\u7f6e\u4e3aSCHED_FIFO\uff08\u5148\u8fdb\u5148\u51fa\uff09\u5e76\u5c06\u4f18\u5148\u7ea7\u8bbe\u7f6e\u4e3a10\u3002\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7a0b\u5e8f\u5c06\u4f1a\u4e00\u76f4\u6267\u884c\u4e00\u4e2a\u65e0\u9650\u5faa\u73af\uff0c\u76f4\u5230\u88ab\u624b\u52a8\u7ec8\u6b62\u3002<\/p>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u4ee3\u7801\u793a\u4f8b\uff0c\u6211\u4eec\u53ef\u4ee5\u4e86\u89e3\u5982\u4f55\u5728C\u8bed\u8a00\u4e2d\u8bbe\u7f6eLinux\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff0c\u5e76\u4e14\u8fdb\u4e00\u6b65\u7406\u89e3\u8fdb\u7a0b\u4f18\u5148\u7ea7\u5bf9\u7cfb\u7edf\u6027\u80fd\u7684\u5f71\u54cd\u3002\u5408\u7406\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u5bf9\u4e8e\u63d0\u9ad8\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u54cd\u5e94\u901f\u5ea6\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<p>\u4e09\u3001\u603b\u7ed3<\/p>\n<p>\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u662f\u4e00\u4e2a\u53ef\u4ee5\u901a\u8fc7nice\u503c\u8bbe\u7f6e\u7684\u91cd\u8981\u6982\u5ff5\uff0c\u5b83\u51b3\u5b9a\u4e86\u8fdb\u7a0b\u5728\u7cfb\u7edf\u4e2d\u83b7\u5f97CPU\u65f6\u95f4\u7684\u591a\u5c11\u3002\u901a\u8fc7\u8bbe\u7f6e\u5408\u9002\u7684\u4f18\u5148\u7ea7\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63a7\u5236\u7cfb\u7edf\u8d44\u6e90\u7684\u5206\u914d\uff0c\u63d0\u9ad8\u7cfb\u7edf\u7684\u6027\u80fd\u8868\u73b0\u3002<\/p>\n<p>\u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\u548c\u4ee3\u7801\u793a\u4f8b\uff0c\u5e0c\u671b\u8bfb\u8005\u80fd\u591f\u6df1\u5165\u7406\u89e3Linux\u4e2d\u7684\u8fdb\u7a0b\u4f18\u5148\u7ea7\uff0c\u5e76\u4e14\u80fd\u591f\u6839\u636e\u5b9e\u9645\u9700\u6c42\u7075\u6d3b\u5730\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff0c\u4ee5\u8fbe\u5230\u6700\u4f73\u7684\u7cfb\u7edf\u6027\u80fd\u548c\u54cd\u5e94\u901f\u5ea6\u3002<\/p>\n<p>\u53c2\u8003\u8d44\u6599\uff1a<\/p>\n<ul>\n<li>Linux man pages<\/li>\n<li>Linux Advanced Programming by Mark Mitchell, Jeffrey Oldham, and Alex Samuel<\/li>\n<\/ul><\/sched.h><\/stdio.h><\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u6df1\u5165\u7406\u89e3Linux\u4e2d\u7684\u8fdb\u7a0b\u4f18\u5148\u7ea7\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8FDCServers\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
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param.sched_priority = 10; \/\/ \u8bbe\u7f6e\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u4e3a10 if(sched_setscheduler(0, SCHED_FIFO, &amp;param) <p>\u8be5\u7a0b\u5e8f\u901a\u8fc7\u8c03\u7528sched_setscheduler\u51fd\u6570\u5c06\u8fdb\u7a0b\u7684\u8c03\u5ea6\u7b56\u7565\u8bbe\u7f6e\u4e3aSCHED_FIFO\uff08\u5148\u8fdb\u5148\u51fa\uff09\u5e76\u5c06\u4f18\u5148\u7ea7\u8bbe\u7f6e\u4e3a10\u3002\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7a0b\u5e8f\u5c06\u4f1a\u4e00\u76f4\u6267\u884c\u4e00\u4e2a\u65e0\u9650\u5faa\u73af\uff0c\u76f4\u5230\u88ab\u624b\u52a8\u7ec8\u6b62\u3002<\/p> <p>\u901a\u8fc7\u4ee5\u4e0a\u4ee3\u7801\u793a\u4f8b\uff0c\u6211\u4eec\u53ef\u4ee5\u4e86\u89e3\u5982\u4f55\u5728C\u8bed\u8a00\u4e2d\u8bbe\u7f6eLinux\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff0c\u5e76\u4e14\u8fdb\u4e00\u6b65\u7406\u89e3\u8fdb\u7a0b\u4f18\u5148\u7ea7\u5bf9\u7cfb\u7edf\u6027\u80fd\u7684\u5f71\u54cd\u3002\u5408\u7406\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u5bf9\u4e8e\u63d0\u9ad8\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u54cd\u5e94\u901f\u5ea6\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p> <p>\u4e09\u3001\u603b\u7ed3<\/p> <p>\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u662f\u4e00\u4e2a\u53ef\u4ee5\u901a\u8fc7nice\u503c\u8bbe\u7f6e\u7684\u91cd\u8981\u6982\u5ff5\uff0c\u5b83\u51b3\u5b9a\u4e86\u8fdb\u7a0b\u5728\u7cfb\u7edf\u4e2d\u83b7\u5f97CPU\u65f6\u95f4\u7684\u591a\u5c11\u3002\u901a\u8fc7\u8bbe\u7f6e\u5408\u9002\u7684\u4f18\u5148\u7ea7\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63a7\u5236\u7cfb\u7edf\u8d44\u6e90\u7684\u5206\u914d\uff0c\u63d0\u9ad8\u7cfb\u7edf\u7684\u6027\u80fd\u8868\u73b0\u3002<\/p> <p>\u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\u548c\u4ee3\u7801\u793a\u4f8b\uff0c\u5e0c\u671b\u8bfb\u8005\u80fd\u591f\u6df1\u5165\u7406\u89e3Linux\u4e2d\u7684\u8fdb\u7a0b\u4f18\u5148\u7ea7\uff0c\u5e76\u4e14\u80fd\u591f\u6839\u636e\u5b9e\u9645\u9700\u6c42\u7075\u6d3b\u5730\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff0c\u4ee5\u8fbe\u5230\u6700\u4f73\u7684\u7cfb\u7edf\u6027\u80fd\u548c\u54cd\u5e94\u901f\u5ea6\u3002<\/p> <p>\u53c2\u8003\u8d44\u6599\uff1a<\/p> <ul> <li>Linux man pages<\/li> <li>Linux Advanced Programming by Mark Mitchell, Jeffrey Oldham, and Alex Samuel<\/li> <\/ul><\/sched.h><\/stdio.h> […]<\/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-63211","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/63211","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=63211"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/63211\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=63211"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=63211"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=63211"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}