{"id":1662,"date":"2025-02-18T09:49:15","date_gmt":"2025-02-18T09:49:15","guid":{"rendered":"http:\/\/www.recologypower.com:9080\/?p=1662"},"modified":"2025-02-18T09:49:16","modified_gmt":"2025-02-18T09:49:16","slug":"%e3%80%90linux%e3%80%91%e8%b0%83%e5%ba%a6%e7%ad%96%e7%95%a5%e5%92%8c%e4%bc%98%e5%85%88%e7%ba%a7","status":"publish","type":"post","link":"http:\/\/www.recologypower.com:9080\/?p=1662","title":{"rendered":"\u3010Linux\u3011\u8c03\u5ea6\u7b56\u7565\u548c\u4f18\u5148\u7ea7"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u80cc\u666f<\/h2>\n\n\n\n<p>\u5728Linux\u4e2d\uff0c\u7ebf\u7a0b\u662f\u4e00\u79cd\u8f7b\u91cf\u7ea7\u7684\u6267\u884c\u5355\u5143\uff0c\u53ef\u4ee5\u5728\u8fdb\u7a0b\u5185\u72ec\u7acb\u8fd0\u884c\u3002\u7ebf\u7a0b\u53ef\u4ee5\u5206\u4e3a\u666e\u901a\u7ebf\u7a0b\u548c\u5b9e\u65f6\u7ebf\u7a0b\uff0c\u5b83\u4eec\u4e4b\u95f4\u7684\u533a\u522b\u5728\u4e8e\u5176\u8c03\u5ea6\u548c\u4f18\u5148\u7ea7\u8bbe\u7f6e\u3002<\/p>\n\n\n\n<p>\u2003\u2003SCHED_OTHER\uff0c\u666e\u901a\u7684\u8c03\u5ea6\uff08\u975e\u5b9e\u65f6\u7ebf\u7a0b\uff09\uff0c\u5e94\u7528\u5c42\u8bbe\u7f6e\u4f18\u5148\u7ea70\uff0c\u8c03\u5ea6\u5668\u603b\u4f1a\u7ed9\u6b64\u7c7b\u7ebf\u7a0b\u5206\u914d\u4e00\u5b9a\u7684CPU\u8d44\u6e90\uff0c\u53ea\u4e0d\u8fc7\u662f\u88ab\u5206\u914d\u5230\u7684\u9891\u6b21\u548c\u65f6\u95f4\u7247\u957f\u5ea6\u8f83\u5c11\u3002\u6bcf1s\u4e2d\u5b9e\u65f6\u7ebf\u7a0b\u548c\u666e\u901a\u7ebf\u7a0b\u7684\u65f6\u95f4\u6bd4\u4f8b\u662f95 \uff1a5\u3002<\/p>\n\n\n\n<p>\u2003\u2003\u666e\u901a\u7ebf\u7a0b\u6ca1\u6709\u56fa\u5b9a\u7684\u54cd\u5e94\u65f6\u95f4\u8981\u6c42\uff0c\u5b83\u4eec\u7684\u4f18\u5148\u7ea7\u7531\u7cfb\u7edf\u52a8\u6001\u8c03\u6574\u3002Linux\u4f7f\u7528CFS\u8c03\u5ea6\u5668\u6765\u7ba1\u7406\u666e\u901a\u7ebf\u7a0b\u3002CFS\u8c03\u5ea6\u5668\u91c7\u7528\u4e00\u79cd\u79f0\u4e3a\u7ea2\u9ed1\u6811\u7684\u6570\u636e\u7ed3\u6784\u6765\u7ef4\u62a4\u7ebf\u7a0b\u7684\u4f18\u5148\u7ea7\u3002\u6bcf\u4e2a\u7ebf\u7a0b\u90fd\u6709\u4e00\u4e2avruntime\u503c\uff0c\u5b83\u8868\u793a\u7ebf\u7a0b\u5728\u8fd0\u884c\u961f\u5217\u4e2d\u6d88\u8017\u7684\u865a\u62df\u65f6\u95f4\u3002CFS\u8c03\u5ea6\u5668\u4f1a\u6839\u636e\u7ebf\u7a0b\u7684vruntime\u503c\u6765\u786e\u5b9a\u8fd0\u884c\u7684\u987a\u5e8f\u3002\u4f18\u5148\u7ea7\u8f83\u9ad8\u7684\u7ebf\u7a0bvruntime\u503c\u8f83\u5c0f\uff0c\u56e0\u6b64\u80fd\u591f\u66f4\u65e9\u5730\u83b7\u5f97CPU\u7684\u65f6\u95f4\u7247\u3002<\/p>\n\n\n\n<p>\u2003\u2003\u9002\u7528\u573a\u666f\uff1a\u5b9e\u65f6\u6027\u8981\u6c42\u4e0d\u9ad8\uff0c\u4f46\u8981\u6c42\u5fc5\u987b\u80fd\u88ab\u6267\u884c\u7684\u7ebf\u7a0b\u3002<\/p>\n\n\n\n<p>\u2003\u2003SCHED_FIFO\uff0c\u62a2\u5360\u5f0f\u8c03\u5ea6\uff08\u5b9e\u65f6\u7ebf\u7a0b\uff09\uff0c\u5b9e\u65f6\u5148\u884c\uff0c\u5e94\u7528\u5c42\u8bbe\u7f6e\u4f18\u5148\u7ea71-99\uff0c\u540c\u4e00\u4f18\u5148\u7ea7\u7684\u591a\u4e2a\u7ebf\u7a0b\u4e2d\uff0c\u4e00\u65e6\u67d0\u4e2a\u62a2\u5360\u5f0f\u7ebf\u7a0b\u83b7\u53d6CPU\uff0c\u9664\u975e\u88ab\u66f4\u9ad8\u4f18\u5148\u7ea7\u7ebf\u7a0b\u62a2\u5360\uff08\u6bd4\u5982\u5728\u975e\u5b9e\u65f6\u7ebf\u7a0b\u4e2d\u521b\u5efa\u4e00\u4e2a\u66f4\u9ad8\u4f18\u5148\u7ea7\u7684\u5b9e\u65f6\u7ebf\u7a0b\uff09\uff0c\u6216\u8be5\u7ebf\u7a0b\u4e3b\u52a8\u8ba9\u51faCPU\u8d44\u6e90\uff0c\u5426\u5219\u8be5\u7ebf\u7a0b\u5c06\u4f1a\u4e00\u76f4\u5360\u7528CPU\uff08\u4f46\u603b\u4f1a\u5206\u914d\u4e00\u70b9\u8d44\u6e90\u7ed9SCHED_OTHER\u975e\u5b9e\u65f6\u7ebf\u7a0b\uff09\u3002<\/p>\n\n\n\n<p>\u2003\u2003\u9002\u7528\u573a\u666f\uff1a\u5b9e\u65f6\u6027\u8981\u6c42\u9ad8\uff0c\u4e0d\u5e0c\u671b\u88ab\u9891\u7e41\u6253\u65ad\u7684\u4efb\u52a1\u3002<\/p>\n\n\n\n<p>\u2003\u2003SCHED_RR\uff0c\u8f6e\u8be2\u5f0f\u8c03\u5ea6\uff08\u5b9e\u65f6\u7ebf\u7a0b\uff09\uff0c\u5b9e\u65f6\u5faa\u73af\uff0c\u8bbe\u7f6e\u4f18\u5148\u7ea71-99\uff0c\u4ee5\u5faa\u73af\u65b9\u5f0f\u8fd0\u884c\uff0c\u6bcf\u4e2a\u7ebf\u7a0b\u90fd\u6709\u4e00\u4e2a\u65f6\u95f4\u7247\u6765\u6267\u884c\u4efb\u52a1\uff0c\u65f6\u95f4\u7247\u8017\u5c3d\u540e\uff0c\u8be5\u7ebf\u7a0b\u5c06\u88ab\u653e\u5165\u961f\u5217\u7684\u672b\u5c3e\uff0c\u800c\u8f83\u4f4e\u4f18\u5148\u7ea7\u7684\u7ebf\u7a0b\u6709\u673a\u4f1a\u6267\u884c\u3002<\/p>\n\n\n\n<p>\u2003\u2003\u9002\u7528\u573a\u666f\uff1a\u5b9e\u65f6\u6027\u8981\u6c42\u9ad8\uff0c\u5141\u8bb8\u88ab\u9891\u7e41\u6253\u65ad\u7684\u4efb\u52a1\u3002<\/p>\n\n\n\n<p>\u2003\u2003\u5728Linux\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528sched_setscheduler\u51fd\u6570\u3002\u8fd9\u4e2a\u51fd\u6570\u5141\u8bb8\u6211\u4eec\u9009\u62e9\u666e\u901a\u7ebf\u7a0b\u6216\u5b9e\u65f6\u7ebf\u7a0b\u3002\u5bf9\u4e8e\u666e\u901a\u7ebf\u7a0b\uff0c\u53ef\u4ee5\u4f7f\u7528nice\u51fd\u6570\u6765\u52a8\u6001\u8c03\u6574\u4f18\u5148\u7ea7\u3002\u5bf9\u4e8e\u5b9e\u65f6\u7ebf\u7a0b\uff0c\u53ef\u4ee5\u4f7f\u7528sched_setscheduler\u51fd\u6570\u6765\u8bbe\u7f6e\u5176\u7c7b\u578b\u548c\u4f18\u5148\u7ea7\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"409\" src=\"http:\/\/www.recologypower.com:9080\/wp-content\/uploads\/2025\/02\/image-1024x409.png\" alt=\"\" class=\"wp-image-1663\" srcset=\"http:\/\/www.recologypower.com:9080\/wp-content\/uploads\/2025\/02\/image-1024x409.png 1024w, http:\/\/www.recologypower.com:9080\/wp-content\/uploads\/2025\/02\/image-300x120.png 300w, http:\/\/www.recologypower.com:9080\/wp-content\/uploads\/2025\/02\/image-768x307.png 768w, http:\/\/www.recologypower.com:9080\/wp-content\/uploads\/2025\/02\/image-600x240.png 600w, http:\/\/www.recologypower.com:9080\/wp-content\/uploads\/2025\/02\/image.png 1089w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u2003\u2003\u5173\u4e8e\u4f18\u5148\u7ea7\u9ad8\u4f4e\u548c\u6570\u503c\u5927\u5c0f\u7684\u5173\u7cfb\uff0c\u5728\u5e94\u7528\u5c42\u548c\u5185\u6838\u4e2d\u4e8c\u8005\u662f\u76f8\u53cd\u7684\u3002<\/p>\n\n\n\n<p>\u2003\u2003\u8bbe\u7f6e\u7ebf\u7a0b\u7684\u4f18\u5148\u7ea7\u9700\u8981\u8c28\u614e\uff0c\u56e0\u4e3a\u8fc7\u9ad8\u7684\u4f18\u5148\u7ea7\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u8d44\u6e90\u7684\u8fc7\u5ea6\u5360\u7528\uff0c\u4ece\u800c\u5f71\u54cd\u5176\u4ed6\u7ebf\u7a0b\u548c\u8fdb\u7a0b\u7684\u6b63\u5e38\u8fd0\u884c\u3002\u53e6\u5916\uff0c\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u53ea\u6709\u5177\u6709\u8db3\u591f\u6743\u9650\u7684\u7528\u6237\u624d\u80fd\u8bbe\u7f6e\u8f83\u9ad8\u7684\u5b9e\u65f6\u7ebf\u7a0b\u4f18\u5148\u7ea7\u3002<\/p>\n\n\n\n<p>\u2003\u2003\u603b\u7ed3\u8d77\u6765\uff0cLinux\u4e2d\u7684\u7ebf\u7a0b\u5206\u4e3a\u666e\u901a\u7ebf\u7a0b\u548c\u5b9e\u65f6\u7ebf\u7a0b\u3002\u666e\u901a\u7ebf\u7a0b\u7684\u4f18\u5148\u7ea7\u7531\u7cfb\u7edf\u52a8\u6001\u8c03\u6574\uff0c\u800c\u5b9e\u65f6\u7ebf\u7a0b\u7684\u4f18\u5148\u7ea7\u7531\u7528\u6237\u663e\u5f0f\u8bbe\u7f6e\u3002\u901a\u8fc7\u5408\u7406\u5730\u8bbe\u7f6e\u7ebf\u7a0b\u7684\u4f18\u5148\u7ea7\uff0c\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u54cd\u5e94\u65f6\u95f4\u3002\u7136\u800c\uff0c\u8bbe\u7f6e\u7ebf\u7a0b\u7684\u4f18\u5148\u7ea7\u9700\u8981\u614e\u91cd\u8003\u8651\uff0c\u4ee5\u907f\u514d\u5f71\u54cd\u5176\u4ed6\u7ebf\u7a0b\u548c\u8fdb\u7a0b\u7684\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u65b9\u6cd5<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    pthread_t pis_task;\r\n    pthread_attr_t attr;\r\n    struct sched_param sched_param;\n\/\/ \u521d\u59cb\u5316\u7ebf\u7a0b\u5c5e\u6027\r\n    pthread_attr_init(&amp;attr);\r\n\r\n    \/\/ \u8bbe\u7f6e\u7ebf\u7a0b\u4e3a\u5b9e\u65f6\u7ebf\u7a0b\r\n    pthread_attr_setinheritsched(&amp;attr, PTHREAD_EXPLICIT_SCHED);\r\n    pthread_attr_setschedpolicy(&amp;attr, SCHED_FIFO);\r\n\r\n    \/\/ \u8bbe\u7f6e\u7ebf\u7a0b\u4f18\u5148\u7ea7\r\n    sched_param.sched_priority = THREAD_PRIORITY;\r\n    pthread_attr_setschedparam(&amp;attr, &amp;sched_param);\r\n\r\n    pthread_create(&amp;pis_task, &amp;attr, PrtMgr_Decode_Task, (void *)&amp;PrintMgr_Init_colorId);\r\n    pthread_setname_np(pis_task, \"name\");<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<div class=\"slide-text-bg2\">\n<h3>\u4e00\u3001\u80cc\u666f \u5728Linux\u4e2d\uff0c\u7ebf\u7a0b\u662f\u4e00\u79cd\u8f7b\u91cf<\/h3>\n<\/div>\n<div class=\"flex-btn-div\"><a href=\"http:\/\/www.recologypower.com:9080\/?p=1662\" class=\"btn1 flex-btn\">\u9605\u8bfb\u66f4\u591a<\/a><\/div>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[110],"tags":[],"_links":{"self":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts\/1662"}],"collection":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1662"}],"version-history":[{"count":1,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts\/1662\/revisions"}],"predecessor-version":[{"id":1664,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts\/1662\/revisions\/1664"}],"wp:attachment":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1662"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1662"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1662"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}