{"id":43474,"date":"2025-06-12T15:28:42","date_gmt":"2025-06-12T07:28:42","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/43474.html"},"modified":"2025-06-12T15:28:42","modified_gmt":"2025-06-12T07:28:42","slug":"%e5%b0%8f%e7%b1%b3%e7%8e%84%e6%88%92o1%e6%9e%b6%e6%9e%84%e6%b7%b1%e5%ba%a6%e8%a7%a3%e6%9e%90%ef%bc%88%e4%ba%8c%ef%bc%89%ef%bc%9a%e5%a4%9a%e6%a0%b8%e4%bb%bb%e5%8a%a1%e8%b0%83%e5%ba%a6%e7%ad%96%e7%95%a5","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/43474.html","title":{"rendered":"\u5c0f\u7c73\u7384\u6212O1\u67b6\u6784\u6df1\u5ea6\u89e3\u6790\uff08\u4e8c\uff09\uff1a\u591a\u6838\u4efb\u52a1\u8c03\u5ea6\u7b56\u7565\u8be6\u89e3"},"content":{"rendered":"<p>\u4e0a\u7bc7\u6587\u7ae0\u4e2d&#xff0c;\u5c31\u63d0\u5230\u4e86\u5c0f\u7c73\u7384\u6212O1\u7684\u591a\u6838\u4efb\u52a1\u8c03\u5ea6\u7b56\u7565&#xff0c;\u4f46\u8bb2\u5f97\u4e0d\u591f\u8be6\u7ec6&#xff0c;\u5c24\u5176\u662f\u5bf9\u4e8e\u5b8c\u5168\u516c\u5e73\u8c03\u5ea6\u5668\u548c\u80fd\u6548\u611f\u77e5\u8c03\u5ea6&#xff0c;\u8fd9\u6b21\u6211\u4eec\u5c31\u6df1\u5ea6\u5256\u6790\u4e00\u4e0b\u8fd9\u4e24\u79cd\u8c03\u5ea6\u7b56\u7565\u3002 <\/p>\n<h4>\u76ee\u5f55<\/h4>\n<ul>\n<li>1. \u5b8c\u5168\u516c\u5e73\u8c03\u5ea6\u5668&#xff08;CFS&#xff09;<\/li>\n<li>\n<ul>\n<li>1.1 \u5b8c\u5168\u516c\u5e73\u8c03\u5ea6\u57fa\u672c\u539f\u7406<\/li>\n<li>1.2 \u5b8c\u5168\u516c\u5e73\u8c03\u5ea6\u57fa\u672c\u6d41\u7a0b<\/li>\n<li>1.3 \u5b8c\u5168\u516c\u5e73\u8c03\u5ea6\u4e2d\u7684\u8d1f\u8f7d\u5747\u8861<\/li>\n<li>\n<ul>\n<li>1.3.1 \u8d1f\u8f7d\u5747\u8861\u539f\u7406\u4e0e\u89e6\u53d1\u673a\u5236<\/li>\n<li>1.3.2 \u8d1f\u8f7d\u5747\u8861\u4e2d\u7684\u4efb\u52a1\u8fc1\u79fb\u673a\u5236<\/li>\n<li>1.3.3 \u8d1f\u8f7d\u5747\u8861\u7684\u7279\u70b9\u4e0e\u610f\u4e49<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>2. \u80fd\u6548\u611f\u77e5\u8c03\u5ea6&#xff08;EAS&#xff09;<\/li>\n<li>\n<ul>\n<li>2.1 \u6838\u5fc3\u76ee\u6807\u4e0e\u6280\u672f\u80cc\u666f<\/li>\n<li>\n<ul>\n<li>2.1.1 &#x1f6a9;\u6838\u5fc3\u76ee\u6807<\/li>\n<li>2.1.2 &#x1f4ab;\u6280\u672f\u80cc\u666f<\/li>\n<\/ul>\n<\/li>\n<li>2.2 \u57fa\u672c\u539f\u7406<\/li>\n<li>\n<ul>\n<li>2.2.1 \u80fd\u91cf\u5efa\u6a21<\/li>\n<li>2.2.2 \u4efb\u52a1\u653e\u7f6e\u51b3\u7b56<\/li>\n<li>2.2.3 \u9891\u7387\u9009\u62e9<\/li>\n<li>2.2.4 \u5524\u9192\u51b3\u7b56<\/li>\n<li>2.2.5 \u8d1f\u8f7d\u5747\u8861<\/li>\n<\/ul>\n<\/li>\n<li>2.3 \u80fd\u6548\u5ea6\u91cf<\/li>\n<li>\n<ul>\n<li>2.3.1 \u80fd\u6548\u8ba1\u7b97<\/li>\n<li>2.3.1 \u80fd\u6548\u8ba1\u7b97\u4e2d\u7684\u5ef6\u8fdf\u60e9\u7f5a<\/li>\n<li>\n<ul>\n<li>\u6838\u5fc3\u601d\u60f3&#xff1a;\u65f6\u95f4\u4ef7\u503c\u91cf\u5316<\/li>\n<\/ul>\n<\/li>\n<li>2.3.3 \u80fd\u6548\u5ea6\u91cf\u7684\u5b9e\u9645\u6848\u4f8b<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>3. \u5b8c\u5168\u516c\u5e73\u8c03\u5ea6 VS \u80fd\u6548\u611f\u77e5\u8c03\u5ea6<\/li>\n<li>4. \u540e\u8bb0<\/li>\n<\/ul>\n<h2>1. \u5b8c\u5168\u516c\u5e73\u8c03\u5ea6\u5668&#xff08;CFS&#xff09;<\/h2>\n<p>\u5b8c\u5168\u516c\u5e73\u8c03\u5ea6\u5668(Completely Fair Scheduler, CFS)\u662fLinux\u5185\u6838\u4e2d\u7684\u4e00\u79cd\u8fdb\u7a0b\u8c03\u5ea6\u7b97\u6cd5&#xff0c;\u5b83\u901a\u8fc7<font color=\"FF0000\">\u7ea2\u9ed1\u6811<\/font>\u6570\u636e\u7ed3\u6784\u6765\u5b9e\u73b0\u516c\u5e73\u7684CPU\u65f6\u95f4\u5206\u914d\u3002<\/p>\n<h3>1.1 \u5b8c\u5168\u516c\u5e73\u8c03\u5ea6\u57fa\u672c\u539f\u7406<\/h3>\n<p>CFS\u7684\u6838\u5fc3\u601d\u60f3\u662f&#xff1a;\u7ed9\u6240\u6709\u53ef\u8fd0\u884c\u8fdb\u7a0b\u63d0\u4f9b\u516c\u5e73\u7684CPU\u65f6\u95f4\u4efd\u989d\u3002\u5b83\u4e0d\u50cf\u4f20\u7edf\u8c03\u5ea6\u5668\u90a3\u6837\u4f7f\u7528\u65f6\u95f4\u7247\u7684\u6982\u5ff5&#xff0c;\u800c\u662f\u57fa\u4e8e\u4ee5\u4e0b\u539f\u5219&#xff1a;<\/p>\n<li>\u865a\u62df\u8fd0\u884c\u65f6\u95f4(vruntime)&#xff1a;\u8bb0\u5f55\u6bcf\u4e2a\u8fdb\u7a0b\u5df2\u7ecf\u83b7\u5f97\u7684CPU\u65f6\u95f4&#xff0c;CFS\u603b\u662f\u9009\u62e9vruntime\u6700\u5c0f\u7684\u8fdb\u7a0b\u8fd0\u884c\u3002<\/li>\n<li>\u6743\u91cd(nice\u503c)&#xff1a;\u4e0d\u540c\u4f18\u5148\u7ea7\u7684\u8fdb\u7a0b\u83b7\u5f97\u4e0d\u540c\u7684CPU\u65f6\u95f4\u6743\u91cd\u3002<\/li>\n<li>\u7ea2\u9ed1\u6811&#xff1a;\u7528\u4e8e\u9ad8\u6548\u5730\u627e\u5230vruntime\u6700\u5c0f\u7684\u8fdb\u7a0b\u3002<\/li>\n<p>\u5728\u591a\u6838\u7cfb\u7edf\u4e2d&#xff0c;\u6bcf\u4e2aCPU\u6838\u5fc3\u90fd\u6709\u81ea\u5df1\u7684\u8fd0\u884c\u961f\u5217(run queue)&#xff0c;\u5305\u542b\u81ea\u5df1\u7684\u7ea2\u9ed1\u6811\u548c\u8c03\u5ea6\u72b6\u6001\u3002\u8fd9\u6837\u53ef\u4ee5\u51cf\u5c11\u6838\u5fc3\u95f4\u7684\u7ade\u4e89&#xff0c;\u63d0\u9ad8\u5e76\u884c\u6548\u7387\u3002<\/p>\n<p>\u4e3a\u4ec0\u4e48\u8981\u4f7f\u7528\u7ea2\u9ed1\u6811&#xff1f;<\/p>\n<p>CFS\u4f7f\u7528\u7ea2\u9ed1\u6811\u662f\u56e0\u4e3a&#xff1a;<\/p>\n<li>\u9ad8\u6548\u67e5\u627e&#xff1a;\u603b\u80fd\u4ee5O(log n)\u65f6\u95f4\u627e\u5230vruntime\u6700\u5c0f\u7684\u8fdb\u7a0b(\u6700\u5de6\u4fa7\u8282\u70b9)<\/li>\n<li>\u5e73\u8861\u6027\u597d&#xff1a;\u7ea2\u9ed1\u6811\u662f\u81ea\u5e73\u8861\u7684&#xff0c;\u63d2\u5165\u5220\u9664\u64cd\u4f5c\u540e\u80fd\u4fdd\u6301\u8f83\u597d\u7684\u5e73\u8861<\/li>\n<li>\u9002\u5408\u9891\u7e41\u66f4\u65b0&#xff1a;\u8fdb\u7a0b\u7684vruntime\u7ecf\u5e38\u53d8\u5316&#xff0c;\u9700\u8981\u9ad8\u6548\u5730\u91cd\u65b0\u63d2\u5165<\/li>\n<p>\u865a\u62df\u8fd0\u884c\u65f6\u95f4&#xff08;vruntime&#xff09;\u7684\u8ba1\u7b97(\u6ce8\u610f\u8fd9\u91cc\u662fdelta\u503c&#xff0c;\u4e5f\u5c31\u662f\u6bcf\u6b21\u53e0\u52a0\u7684\u865a\u62df\u8fd0\u884c\u65f6\u95f4)<\/p>\n<p>delta_vruntime <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span>delta_exec <span class=\"token operator\">*<\/span> NICE_0_LOAD<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> <span class=\"token punctuation\">(<\/span>task_weight <span class=\"token operator\">*<\/span> <span class=\"token punctuation\">(<\/span>cpu_capacity <span class=\"token operator\">\/<\/span> max_capacity<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u8fd9\u6837\u4e00\u6765,\u5b9e\u65f6\u7684\u865a\u62df\u8fd0\u884c\u65f6\u95f4\u662f\u8fd9\u6837\u7684<\/p>\n<p>vruntime <span class=\"token operator\">&#043;&#061;<\/span> delta_vruntime<\/p>\n<p>\u5176\u4e2d&#xff0c;NICE_0_LOAD\u662f\u57fa\u51c6\u6743\u91cd&#xff08;\u9ed8\u8ba4\u503c\u4e3a 1024&#xff09;\u3002 delta_exec&#xff1a;\u4efb\u52a1\u5b9e\u9645\u8fd0\u884c\u7684\u65f6\u95f4&#xff08;\u7269\u7406\u65f6\u95f4&#xff0c;\u5355\u4f4dns&#xff09;\u3002 cpu_capacity&#xff1a; \u5f53\u524dCPU\u6838\u5fc3\u7684\u8ba1\u7b97\u80fd\u529b\u3002 max_capacity&#xff1a;\u7cfb\u7edf\u4e2d\u6700\u5f3a\u6838\u5fc3\u7684\u5bb9\u91cf&#xff08;\u901a\u5e38\u4e3a 1024&#xff09;\u3002 \u6743\u91cdtask_weight\u662f\u901a\u8fc7nice\u503c\u8f6c\u5316\u800c\u6765&#xff1a; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250612072837-684a81a50c930.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"200\" \/> \u4f8b\u5982&#xff0c;nice \u503c\u4e3a &#8211; 10 \u7684\u8fdb\u7a0b\u6743\u91cd\u7ea6\u4e3a 9548&#xff0c;\u800c nice \u503c\u4e3a 19 \u7684\u8fdb\u7a0b\u6743\u91cd\u4ec5\u4e3a 15\u3002<font color=\"0000FF\">\u6743\u91cd\u8d8a\u9ad8&#xff0c;vruntime \u589e\u957f\u8d8a\u6162&#xff0c;\u8fdb\u7a0b\u83b7\u5f97\u7684 CPU \u65f6\u95f4\u8d8a\u591a<\/font>\u3002<\/p>\n<p>\u5728\u5b9e\u9645\u7684\u5f00\u53d1\u4e2d&#xff0c;\u8fd9\u79cd\u975e\u7ebf\u6027\u8fd0\u7b97\u76f8\u5bf9\u6765\u8bf4\u662f\u5f88\u6d88\u8017\u8ba1\u7b97\u8d44\u6e90\u7684&#xff0c;\u4e00\u822c\u90fd\u4f1a\u5c06\u8fd9\u79cd\u6620\u5c04\u4fdd\u5b58\u5230\u4e00\u4e2a\u6570\u7ec4\u4e2d&#xff0c;\u968f\u7528\u968f\u53d6\u3002<\/p>\n<p><span class=\"token comment\">\/\/ include\/linux\/sched\/prio.h<\/span><br \/>\n<span class=\"token keyword\">static<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">int<\/span> prio_to_weight<span class=\"token punctuation\">[<\/span><span class=\"token number\">40<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/* -20 *\/<\/span>     <span class=\"token number\">88761<\/span><span class=\"token punctuation\">,<\/span>     <span class=\"token number\">71755<\/span><span class=\"token punctuation\">,<\/span>     <span class=\"token number\">56483<\/span><span class=\"token punctuation\">,<\/span>     <span class=\"token number\">46273<\/span><span class=\"token punctuation\">,<\/span>     <span class=\"token number\">36291<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token comment\">\/* -15 *\/<\/span>     <span class=\"token number\">29154<\/span><span class=\"token punctuation\">,<\/span>     <span class=\"token number\">23254<\/span><span class=\"token punctuation\">,<\/span>     <span class=\"token number\">18705<\/span><span class=\"token punctuation\">,<\/span>     <span class=\"token number\">14949<\/span><span class=\"token punctuation\">,<\/span>     <span class=\"token number\">11916<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token comment\">\/* -10 *\/<\/span>      <span class=\"token number\">9548<\/span><span class=\"token punctuation\">,<\/span>      <span class=\"token number\">7620<\/span><span class=\"token punctuation\">,<\/span>      <span class=\"token number\">6100<\/span><span class=\"token punctuation\">,<\/span>      <span class=\"token number\">4904<\/span><span class=\"token punctuation\">,<\/span>      <span class=\"token number\">3906<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token comment\">\/*  -5 *\/<\/span>      <span class=\"token number\">3121<\/span><span class=\"token punctuation\">,<\/span>      <span class=\"token number\">2501<\/span><span class=\"token punctuation\">,<\/span>      <span class=\"token number\">1991<\/span><span class=\"token punctuation\">,<\/span>      <span class=\"token number\">1586<\/span><span class=\"token punctuation\">,<\/span>      <span class=\"token number\">1277<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token comment\">\/*   0 *\/<\/span>      <span class=\"token number\">1024<\/span><span class=\"token punctuation\">,<\/span>       <span class=\"token number\">820<\/span><span class=\"token punctuation\">,<\/span>       <span class=\"token number\">655<\/span><span class=\"token punctuation\">,<\/span>       <span class=\"token number\">526<\/span><span class=\"token punctuation\">,<\/span>       <span class=\"token number\">423<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token comment\">\/*   5 *\/<\/span>       <span class=\"token number\">335<\/span><span class=\"token punctuation\">,<\/span>       <span class=\"token number\">272<\/span><span class=\"token punctuation\">,<\/span>       <span class=\"token number\">215<\/span><span class=\"token punctuation\">,<\/span>       <span class=\"token number\">172<\/span><span class=\"token punctuation\">,<\/span>       <span class=\"token number\">137<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token comment\">\/*  10 *\/<\/span>       <span class=\"token number\">110<\/span><span class=\"token punctuation\">,<\/span>        <span class=\"token number\">87<\/span><span class=\"token punctuation\">,<\/span>        <span class=\"token number\">70<\/span><span class=\"token punctuation\">,<\/span>        <span class=\"token number\">56<\/span><span class=\"token punctuation\">,<\/span>        <span class=\"token number\">45<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token comment\">\/*  15 *\/<\/span>        <span class=\"token number\">36<\/span><span class=\"token punctuation\">,<\/span>        <span class=\"token number\">29<\/span><span class=\"token punctuation\">,<\/span>        <span class=\"token number\">23<\/span><span class=\"token punctuation\">,<\/span>        <span class=\"token number\">18<\/span><span class=\"token punctuation\">,<\/span>        <span class=\"token number\">15<\/span><span class=\"token punctuation\">,<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>CFS\u7ef4\u62a4\u4e00\u4e2a\u7ea2\u9ed1\u6811&#xff08;cfs_rq&#xff09;&#xff0c;\u6309 vruntime \u5347\u5e8f\u6392\u5217\u6240\u6709\u53ef\u8fd0\u884c\u8fdb\u7a0b\u3002\u6bcf\u6b21\u8c03\u5ea6\u65f6&#xff0c;\u9009\u62e9 vruntime\u6700\u5c0f\u7684\u8fdb\u7a0b\u8fd0\u884c&#xff0c;\u786e\u4fdd \u201c\u9965\u997f\u201d \u8fdb\u7a0b\u4f18\u5148\u83b7\u5f97\u8d44\u6e90\u3002\u4f8b\u5982&#xff0c;\u82e5\u8fdb\u7a0b A \u7684 vruntime \u4e3a 10ms&#xff0c;\u8fdb\u7a0b B \u4e3a 20ms&#xff0c;\u5219 A \u4f1a\u4f18\u5148\u88ab\u8c03\u5ea6\u3002<\/p>\n<p>\u90a3\u4e48&#xff0c;<font size=\"4\" color=\"0000FF\">\u6743\u91cd\u662f\u6839\u636enice\u503c\u6765\u7684&#xff0c;\u90a3\u4e48nice\u503c\u53c8\u662f\u54ea\u91cc\u6765\u7684<\/font>&#xff1f;<\/p>\n<p>nice \u503c\u7684\u5b8c\u6574\u751f\u547d\u5468\u671f\u5e94\u8be5\u662f\u8fd9\u6837\u7684&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u521d\u59cb\u8d4b\u503c&#xff1a; \u7528\u6237\u663e\u5f0f\u6307\u5b9a&#xff08;nice\/renice&#xff09;\u6216\u7ee7\u627f\u7236\u8fdb\u7a0b\u503c\u3002 \u7cfb\u7edf\u6839\u636e\u8fdb\u7a0b\u7c7b\u578b\u8bbe\u7f6e\u9ed8\u8ba4\u503c&#xff08;\u5982\u4ea4\u4e92\u5f0f\u8fdb\u7a0b\u4e3a &#8211; 5&#xff0c;\u6279\u5904\u7406\u4e3a 10&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>\u5185\u6838\u5904\u7406&#xff1a; \u901a\u8fc7set_load_weight()\u5c06 nice \u503c\u8f6c\u6362\u4e3a\u6743\u91cd&#xff08;\u5f71\u54cdvruntime\u589e\u957f\u901f\u5ea6&#xff09;\u3002 \u5c06 nice \u503c\u6620\u5c04\u4e3a\u9759\u6001\u4f18\u5148\u7ea7&#xff08;static_prio &#061; 120 &#043; nice\u00d72&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>\u52a8\u6001\u8c03\u6574&#xff1a; \u7528\u6237\u901a\u8fc7setpriority()\u7cfb\u7edf\u8c03\u7528\u4fee\u6539 nice \u503c\u3002 \u5185\u6838\u6839\u636e\u8fdb\u7a0b\u884c\u4e3a\u81ea\u52a8\u5fae\u8c03&#xff08;\u901a\u8fc7update_curr()\u63a5\u53e3&#xff09;\u5982 I\/O \u5bc6\u96c6\u578b\u8fdb\u7a0b\u4f18\u5148\u7ea7\u63d0\u5347\u3002<\/p>\n<\/li>\n<li>\n<p>\u8c03\u5ea6\u51b3\u7b56&#xff1a; \u5b9e\u65f6\u8fdb\u7a0b&#xff08;SCHED_FIFO\/SCHED_RR&#xff09;\u4f18\u5148\u4e8e\u666e\u901a\u8fdb\u7a0b&#xff08;SCHED_NORMAL&#xff09;\u3002 \u666e\u901a\u8fdb\u7a0b\u5728 CFS \u961f\u5217\u4e2d\u6309vruntime\u6392\u5e8f&#xff0c;\u6743\u91cd\u9ad8\u7684\u8fdb\u7a0b&#xff08;nice \u503c\u4f4e&#xff09;\u4f18\u5148\u8c03\u5ea6\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u4e25\u683c\u610f\u4e49\u4e0a\u6765\u8bf4&#xff0c;\u5185\u6838\u5e76\u672a\u4fee\u6539\u4efb\u52a1\u7684nice\u503c&#xff0c;\u800c\u662f\u76f4\u63a5\u4fee\u6539\u4e86\u4efb\u52a1\u7684\u4f18\u5148\u7ea7\u3002\u4ece\u8fd9\u70b9\u6765\u8bf4&#xff0c;nice\u503c\u662f\u4eba\u4e3a\u8bbe\u5b9a\u7684\u3002<\/p>\n<h3>1.2 \u5b8c\u5168\u516c\u5e73\u8c03\u5ea6\u57fa\u672c\u6d41\u7a0b<\/h3>\n<p>\u7384\u6212O1\u5171\u670910\u4e2a\u6838&#xff0c;\u8fd9\u6837\u8bb2\u8d77\u6765\u4f1a\u975e\u5e38\u590d\u6742&#xff0c;\u4e3a\u65b9\u4fbf\u7406\u89e3&#xff0c;\u6211\u4eec\u7b80\u5316\u6574\u4e2a\u67b6\u6784&#xff0c;\u57fa\u672c\u539f\u7406\u662f\u4e0d\u53d8\u7684\u3002<\/p>\n<p>\u6211\u4eec\u6a21\u62df\u4e00\u4e2a\u5177\u67092\u4e2a\u5927\u6838&#xff08;\u9ad8\u6027\u80fd&#xff09;\u548c2\u4e2a\u5c0f\u6838&#xff08;\u8282\u80fd&#xff09;\u7684ARM\u67b6\u6784\u7cfb\u7edf&#xff0c;\u57fa\u672c\u914d\u7f6e\u5982\u4e0b&#xff1a;<\/p>\n<p>\u5927\u6838&#xff1a;\u8ba1\u7b97\u80fd\u529b\u4e3a1024&#xff0c;\u8c03\u5ea6\u961f\u5217\u4e3arq_big0\u548crq_big1 \u5c0f\u6838&#xff1a;\u8ba1\u7b97\u80fd\u529b\u4e3a512&#xff0c;\u8c03\u5ea6\u961f\u5217\u4e3arq_little0\u548crq_little1 \u4efb\u52a1\u96c6&#xff1a;6\u4e2a\u4efb\u52a1&#xff08;T1-T6&#xff09;&#xff0c;\u521d\u59cbvruntime&#061;0&#xff0c;\u6743\u91cd\u5982\u4e0b&#xff1a;<\/p>\n<p>T1(nice&#061;0), T2(nice&#061;0), T3(nice&#061;0), T4(nice&#061;0) T5(nice&#061;0), T6(nice&#061;0),<\/p>\n<p>\u8fd96\u4e2a\u4efb\u52a1\u7684\u7c7b\u578b\u5206\u522b\u5982\u4e0b&#xff1a;<\/p>\n<p>T1, T2&#xff1a;CPU\u5bc6\u96c6\u578b&#xff08;\u6301\u7eed\u8fd0\u884c&#xff09; T3, T4&#xff1a;I\/O\u5bc6\u96c6\u578b&#xff08;\u9891\u7e41\u7761\u7720&#xff09; T5, T6&#xff1a;\u540e\u53f0\u4efb\u52a1&#xff08;\u4f4e\u4f18\u5148\u7ea7&#xff09; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250612072837-684a81a517abb.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"400\" \/><\/p>\n<p>\u521d\u59cb\u4efb\u52a1\u5206\u914d&#xff08;\u5047\u8bbe\u6ca1\u6709\u4efb\u52a1\u4eb2\u548c\u6027\u9650\u5236&#xff09;<\/p>\n<p>\u5404\u4e2a\u6838\u5fc3\u7ef4\u62a4\u7684\u7ea2\u9ed1\u6811\u5982\u4e0b&#xff1a;<\/p>\n<p>\u4e3a\u4e86\u4fbf\u4e8e\u7406\u89e3&#xff0c;\u6211\u5728\u5373\u5c06\u5904\u7406\u7684\u4efb\u52a1\u4e0a\u65b9\u52a0\u4e0a\u4e86\u4e00\u4e2a\u89e3\u5f00\u9501\u7684\u6807\u5fd7&#xff1a; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250612072837-684a81a5590c3.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"450\" \/> 5ns\u540e<\/p>\n<p>\u5927\u68380&#xff1a;\u9009\u62e9T1(0)\u8fd0\u884c \u2192 vruntime &#043;&#061; 5 \u2192 T1(5) \u5927\u68381&#xff1a;\u9009\u62e9T3(0)\u8fd0\u884c \u2192 vruntime &#043;&#061; 5 \u2192 T3(5) \u5c0f\u68380&#xff1a;\u9009\u62e9T5(0)\u8fd0\u884c \u2192 vruntime &#043;&#061; 10 \u2192 T5(10) \u5c0f\u68381&#xff1a;\u9009\u62e9T6(0)\u8fd0\u884c \u2192 vruntime &#043;&#061; 10 \u2192 T6(10) \u6b64\u65f6\u7684\u7ea2\u9ed1\u6811\u53d8\u6210\u4e86\u8fd9\u6837&#xff1a; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250612072837-684a81a5a1d3d.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"450\" \/> 10ns\u540e<\/p>\n<p>\u5927\u68380&#xff1a;\u9009\u62e9T2(0)\u8fd0\u884c \u2192 vruntime &#043;&#061; 5 \u2192 T2(5) \u5927\u68381&#xff1a;\u9009\u62e9T4(0)\u8fd0\u884c \u2192 vruntime &#043;&#061; 5 \u2192 T4(5) \u5c0f\u68380&#xff1a;\u9009\u62e9T5(10)\u8fd0\u884c \u2192 vruntime &#043;&#061; 10 \u2192 T5(20) \u5c0f\u68381&#xff1a;\u9009\u62e9T6(10)\u8fd0\u884c \u2192 vruntime &#043;&#061; 10 \u2192 T6(20)<\/p>\n<p>T3, T4\u662fI\/O\u5bc6\u96c6\u578b\u4efb\u52a1&#xff0c;\u4f1a\u51fa\u73b0\u9891\u7e41\u7684\u7761\u7720\u73b0\u8c61&#xff0c;\u90a3\u4e48\u6211\u4eec\u5047\u5b9aT3(5)\u6b64\u65f6\u53d1\u751f\u4e86\u7761\u7720&#xff0c;\u6b64\u65f6\u5c06\u5176\u4ece\u7ea2\u9ed1\u6811\u4e2d\u79fb\u9664&#xff0c;\u76f4\u81f3\u4e0b\u6b21\u5524\u9192\u3002<\/p>\n<p>\u6b64\u65f6\u7684\u7ea2\u9ed1\u6811\u53d8\u6210\u4e86\u8fd9\u6837&#xff1a; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250612072837-684a81a5c4f5d.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"450\" \/><\/p>\n<p>15ns\u540e&#xff08;\u8d1f\u8f7d\u5747\u8861\u8fc1\u79fb&#xff09;<\/p>\n<p>\u6b64\u65f6&#xff0c;\u7531\u4e8eT5\u4efb\u52a1\u7684vruntime\u4e3a30&#xff0c;\u89e6\u53d1\u4e86\u8d1f\u8f7d\u5747\u8861&#xff0c;\u56e0\u6b64\u4ece\u5c0f\u68380\u8fc1\u79fb\u5230\u5927\u68380\u4e2d\u53bb\u5904\u7406\u3002 \u540c\u6837\u5730&#xff0c;T6\u4efb\u52a1\u7684vruntime\u4e3a30&#xff0c;\u89e6\u53d1\u4e86\u8d1f\u8f7d\u5747\u8861&#xff0c;\u56e0\u6b64\u4ece\u5c0f\u68381\u8fc1\u79fb\u5230\u5927\u68381\u4e2d\u53bb\u5904\u7406\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250612072838-684a81a60cff2.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"450\" \/> 20ns\u540e&#xff08;T3\u4efb\u52a1\u5524\u9192&#xff09;<\/p>\n<p>\u5047\u8bbe\u6b64\u65f6\u4efb\u52a1T3\u88ab\u91cd\u65b0\u5524\u9192&#xff0c;\u4ee5\u524d\u662f\u5728\u5927\u68381\u4e2d\u5904\u7406&#xff0c;\u73b0\u5728\u6211\u4eec\u4ecd\u7136\u4ea4\u7531\u5b83\u8fdb\u884c\u5904\u7406\u3002\u540c\u65f6\u65b0\u8fdb\u6765\u4e86\u9700\u8981\u5904\u7406\u7684\u65b0\u4efb\u52a1T7(0)&#xff0c;\u5f53\u524d\u4e24\u4e2a\u5c0f\u6838\u662f\u7a7a\u95f2\u7684&#xff0c;\u6211\u4eec\u5c06\u5176\u653e\u5728\u5c0f\u68380\u4e2d\u8fdb\u884c\u5904\u7406\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250612072838-684a81a62f9e4.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"450\" \/> 25ns\u540e<\/p>\n<p>\u7ee7\u7eed\u6267\u884c\u5f53\u524d\u9700\u8981\u6267\u884c\u7684\u4efb\u52a1\u5373\u53ef<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250612072838-684a81a66d35b.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"450\" \/><\/p>\n<h3>1.3 \u5b8c\u5168\u516c\u5e73\u8c03\u5ea6\u4e2d\u7684\u8d1f\u8f7d\u5747\u8861<\/h3>\n<p>\u5728 CFS \u8c03\u5ea6\u5668\u4e2d&#xff0c;\u8d1f\u8f7d\u5747\u8861\u89e6\u53d1\u4e0e\u4efb\u52a1\u8fc1\u79fb\u7684\u6838\u5fc3\u903b\u8f91\u4e0evruntime&#xff08;\u865a\u62df\u8fd0\u884c\u65f6\u95f4&#xff09;\u548c\u5904\u7406\u5668\u80fd\u529b\u7684\u52a8\u6001\u5173\u7cfb\u5bc6\u5207\u76f8\u5173\u3002\u4ee5\u4e0b\u4ece\u539f\u7406\u3001\u8fc1\u79fb\u673a\u5236\u548c\u7279\u70b9\u4e09\u65b9\u9762\u8be6\u7ec6\u89e3\u91ca&#xff1a;<\/p>\n<h4>1.3.1 \u8d1f\u8f7d\u5747\u8861\u539f\u7406\u4e0e\u89e6\u53d1\u673a\u5236<\/h4>\n<p>vruntime \u662f CFS \u8861\u91cf\u4efb\u52a1 \u201c\u516c\u5e73\u6027\u201d \u7684\u5173\u952e\u6307\u6807&#xff0c;\u8ba1\u7b97\u516c\u5f0f\u4e3a&#xff1a;<\/p>\n<p>vruntime <span class=\"token operator\">&#061;<\/span> \u5b9e\u9645\u8fd0\u884c\u65f6\u95f4 \u00d7 <span class=\"token punctuation\">(<\/span>NICE\u503c\u5bf9\u5e94\u7684\u6743\u91cd \/ \u7cfb\u7edf\u57fa\u51c6\u6743\u91cd<span class=\"token punctuation\">)<\/span><\/p>\n<p>\u4f46\u5728\u591a\u6838\u5fc3\u573a\u666f\u4e0b&#xff0c;\u8fd8\u9700\u8003\u8651\u5904\u7406\u5668\u80fd\u529b\u7684\u5f71\u54cd&#xff1a; \u5904\u7406\u80fd\u529b\u5f3a\u7684\u6838\u5fc3&#xff08;\u5982\u5927\u6838&#xff09;\u5728\u76f8\u540c\u7269\u7406\u65f6\u95f4\u5185&#xff0c;\u4efb\u52a1\u7684 vruntime \u589e\u957f\u66f4\u6162&#xff08;\u56e0\u4e3a\u7b49\u6548\u4e8e \u201c\u65f6\u95f4\u88ab\u538b\u7f29\u201d&#xff09;&#xff1b; \u5904\u7406\u80fd\u529b\u5f31\u7684\u6838\u5fc3&#xff08;\u5982\u5c0f\u6838&#xff09;\u5728\u76f8\u540c\u7269\u7406\u65f6\u95f4\u5185&#xff0c;\u4efb\u52a1\u7684 vruntime \u589e\u957f\u66f4\u5feb\u3002<\/p>\n<p>\u5047\u8bbe\u5927\u6838\u5904\u7406\u80fd\u529b\u662f\u5c0f\u6838\u7684 2 \u500d&#xff08;\u5982\u9898\u76ee\u4e2d\u8bbe\u5b9a&#xff09;&#xff0c;\u5219&#xff1a; \u5927\u6838\u4e0a\u8fd0\u884c 1ms&#xff0c;\u7b49\u6548\u4e8e\u5c0f\u6838\u4e0a\u8fd0\u884c 2ms&#xff1b; \u5927\u6838\u4e0a\u4efb\u52a1\u7684 vruntime \u589e\u957f\u901f\u5ea6\u662f\u5c0f\u6838\u7684 1\/2\u3002<\/p>\n<p>\u7ed3\u6784\u4e0d\u540c\u7684\u6838\u5fc3&#xff0c;\u5904\u7406\u6548\u7387\u4e5f\u4f1a\u6709\u6240\u4e0d\u540c&#xff0c;\u8fd9\u6837\u7ecf\u8fc7\u76f8\u540c\u7684\u65f6\u95f4&#xff0c;\u4e0d\u540c\u6838\u5fc3\u4e2d\u7684\u4efb\u52a1\u5c31\u597d\u50cf\u88ab\u201c\u533a\u522b\u5bf9\u5f85\u201d\u4e86&#xff0c;\u6240\u4ee5\u5f53\u5dee\u8ddd\u592a\u5927\u7684\u65f6\u5019&#xff0c;\u5c31\u9700\u8981\u4ece\u5c0f\u6838\u8fc1\u79fb\u5230\u5927\u6838&#xff0c;\u8fdb\u884c\u4e00\u5b9a\u7684\u8865\u507f\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250612072838-684a81a6a40a7.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"260\" \/><\/p>\n<h4>1.3.2 \u8d1f\u8f7d\u5747\u8861\u4e2d\u7684\u4efb\u52a1\u8fc1\u79fb\u673a\u5236<\/h4>\n<p>\u4efb\u52a1\u9009\u62e9 \u4f18\u5148\u8fc1\u79fb\u5c0f\u6838\u7ea2\u9ed1\u6811\u4e2dvruntime \u6700\u9ad8\u7684\u4efb\u52a1&#xff0c;\u56e0\u4e3a\u5b83\u6700\u9700\u8981\u66f4\u591a CPU \u8d44\u6e90\u6765\u964d\u4f4e vruntime\u3002<\/p>\n<p>\u6743\u91cd\u6821\u51c6<\/p>\n<p><font size=\"4\" color=\"0000FF\">\u5728\u4e0a\u8ff0\u7684\u4f8b\u5b50\u4e2d&#xff0c;\u4e3a\u4e86\u65b9\u4fbf\u7406\u89e3&#xff0c;\u5728\u5c06T5\u8fc1\u79fb\u5230\u5927\u6838\u540e&#xff0c;\u5e76\u6ca1\u6709\u8fdb\u884c\u201c\u65f6\u95f4\u6821\u51c6\u201d&#xff0c;\u8fd9\u6837\u4f1a\u5bfc\u81f4\u4e00\u4e2a\u95ee\u9898&#xff0c;\u5c31\u662fT5\u53ef\u80fd\u4f1a\u5728\u8f83\u957f\u65f6\u95f4\u5185\u5f97\u4e0d\u5230\u5904\u7406\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981\u518d\u4efb\u52a1\u8fc1\u79fb\u540e\u8fdb\u884c\u65f6\u95f4\u6821\u51c6&#xff0c;\u4e5f\u5c31\u662f\u4e0e\u5927\u6838\u4e2d\u539f\u6709\u7684\u4efb\u52a1\u628a\u65f6\u95f4\u7ebf\u62c9\u5e73<\/font>\u3002<\/p>\n<p>\u6743\u91cd\u6bd4\u4f8b\u6821\u51c6\u7684\u516c\u5f0f\u7a0d\u5fae\u590d\u6742\u4e00\u4e9b&#xff1a;<\/p>\n<p>\u6821\u51c6\u6bd4\u4f8b <span class=\"token operator\">&#061;<\/span> src_weight <span class=\"token operator\">\/<\/span> dst_weight <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">512<\/span><span class=\"token operator\">\/<\/span><span class=\"token number\">1024<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0.5<\/span><br \/>\nT5\u6821\u51c6\u540evruntime <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">30<\/span> <span class=\"token operator\">&#8211;<\/span> src_min<span class=\"token punctuation\">)<\/span> \u00d7 <span class=\"token number\">0.5<\/span> <span class=\"token operator\">&#043;<\/span> dst_min<br \/>\n               \u2248 <span class=\"token number\">15<\/span> <span class=\"token operator\">&#043;<\/span> dst_min  &#xff08;\u5047\u8bbemin_vruntime\u5dee\u5f02\u53ef\u5ffd\u7565&#xff09;<\/p>\n<p>\u5927\u6982\u76f8\u5f53\u4e8e\u5c06T5\u7684vruntime \u51cf\u5c11\u5230\u4e86\u539f\u6765\u7684\u4e00\u534a&#xff0c;\u4e5f\u5c31\u662f15\u3002<\/p>\n<p>\u63d2\u5165\u5927\u6838\u7ea2\u9ed1\u6811<\/p>\n<p>\u7136\u540e\u6839\u636evruntime\u5927\u5c0f&#xff0c;\u5c06\u5176\u63d2\u5165\u5927\u6838\u7684\u7ea2\u9ed1\u6811\u4e2d\u5373\u53ef\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250612072839-684a81a7cddb8.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"450\" \/><\/p>\n<h4>1.3.3 \u8d1f\u8f7d\u5747\u8861\u7684\u7279\u70b9\u4e0e\u610f\u4e49<\/h4>\n<ul>\n<li>\u6821\u51c6\u5373\u516c\u5e73&#xff1a;vruntime\u8f6c\u6362\u4e0d\u662f\u7b80\u5355\u7684\u6570\u503c\u642c\u8fd0&#xff0c;\u800c\u662f\u901a\u8fc7\u6743\u91cd\u6bd4\u4f8b\u8fdb\u884c\u65f6\u95f4\u7ef4\u5ea6\u8f6c\u6362<\/li>\n<li>\u672a\u8fd0\u884c\u5374\u63a5\u8fd1&#xff1a;\u56e0\u6821\u51c6\u516c\u5f0f\u4e3b\u52a8\u7f29\u653evruntime\u503c&#xff0c;\u4f7f\u8fc1\u79fb\u540e\u4efb\u52a1\u7acb\u5373\u9002\u914d\u65b0CPU\u7684\u65f6\u95f4\u4f53\u7cfb<\/li>\n<li>\u77ed\u671f\u727a\u7272\u6362\u957f\u671f\u6536\u76ca&#xff1a;\u77ed\u6682\u7b49\u5f85\u540e&#xff0c;\u4efb\u52a1\u5c06\u5728\u9ad8\u7b97\u529bCPU\u4e0a\u66f4\u9ad8\u6548\u5730\u8ffd\u8d76\u8fdb\u5ea6<\/li>\n<\/ul>\n<p>\u8fd9\u79cd\u8bbe\u8ba1\u786e\u4fdd\u4e86 \u8de8\u5f02\u6784CPU\u7684\u5168\u5c40\u516c\u5e73\u6027&#xff0c;\u5373\u4f7f\u8fc1\u79fb\u521d\u671f\u6709\u8c03\u5ea6\u5ef6\u8fdf&#xff0c;\u957f\u671f\u770b\u4ecd\u662f\u6700\u4f18\u7b56\u7565\u3002<\/p>\n<hr \/>\n<h2>2. \u80fd\u6548\u611f\u77e5\u8c03\u5ea6&#xff08;EAS&#xff09;<\/h2>\n<p>\u5b8c\u5168\u516c\u5e73\u548c\u80fd\u6548\u611f\u77e5\u8fd9\u4e24\u79cd\u8c03\u5ea6\u5668\u7b56\u7565\u4ee3\u8868\u4e86\u73b0\u4ee3\u64cd\u4f5c\u7cfb\u7edf&#xff08;\u5c24\u5176\u662fLinux\u5185\u6838&#xff09;\u5728\u5904\u7406\u4efb\u52a1\u65f6\u8ffd\u6c42\u7684\u4e0d\u540c\u6838\u5fc3\u76ee\u6807&#xff1a;\u4e00\u4e2a\u662f\u516c\u5e73\u6027\u4f18\u5148&#xff0c;\u53e6\u4e00\u4e2a\u662f\u80fd\u6548\u4f18\u5148\u3002<\/p>\n<h3>2.1 \u6838\u5fc3\u76ee\u6807\u4e0e\u6280\u672f\u80cc\u666f<\/h3>\n<h4>2.1.1 &#x1f6a9;\u6838\u5fc3\u76ee\u6807<\/h4>\n<ul>\n<li>\u5728\u4fdd\u8bc1\u7cfb\u7edf\u6027\u80fd\u548c\u54cd\u5e94\u6027\u7684\u524d\u63d0\u4e0b&#xff0c;\u6700\u5c0f\u5316\u6574\u4e2a\u7cfb\u7edf\u7684\u80fd\u91cf\u6d88\u8017\u3002<\/li>\n<li>\u5229\u7528\u73b0\u4ee3\u5904\u7406\u5668\u7684\u5f02\u6784\u591a\u6838\u67b6\u6784\u548c\u52a8\u6001\u7535\u538b\u9891\u7387\u8c03\u8282\u6280\u672f\u6765\u8282\u7701\u529f\u8017\u3002<\/li>\n<\/ul>\n<h4>2.1.2 &#x1f4ab;\u6280\u672f\u80cc\u666f<\/h4>\n<p>\u5f02\u6784\u591a\u6838\u7cfb\u7edf&#xff1a; \u73b0\u4ee3\u79fb\u52a8\u8bbe\u5907CPU\u901a\u5e38\u5305\u542b\u4e0d\u540c\u7c7b\u578b\u7684\u5185\u6838&#xff1a;<\/p>\n<p>\u201c\u5927\u6838\u201d&#xff1a; \u9ad8\u6027\u80fd\u6838\u5fc3&#xff0c;\u9891\u7387\u9ad8&#xff0c;\u5355\u7ebf\u7a0b\u6027\u80fd\u5f3a&#xff0c;\u4f46\u529f\u8017\u4e5f\u9ad8&#xff08;\u5c24\u5176\u662f\u9ad8\u9891\u65f6\u529f\u8017\u589e\u957f\u975e\u7ebf\u6027&#xff09;\u3002 \u201c\u5c0f\u6838\u201d&#xff1a; \u9ad8\u80fd\u6548\u6838\u5fc3&#xff0c;\u9891\u7387\u8f83\u4f4e&#xff0c;\u6027\u80fd\u8f83\u5f31&#xff0c;\u4f46\u5355\u4f4d\u6027\u80fd\u529f\u8017\u975e\u5e38\u4f4e&#xff0c;\u7a7a\u95f2\u529f\u8017\u4e5f\u6781\u4f4e\u3002<\/p>\n<p>\u52a8\u6001\u7535\u538b\u9891\u7387\u8c03\u8282&#xff1a; CPU\u53ef\u4ee5\u6839\u636e\u8d1f\u8f7d\u52a8\u6001\u8c03\u6574\u5de5\u4f5c\u7535\u538b\u548c\u9891\u7387\u3002\u4f4e\u9891\u4f4e\u538b\u65f6\u529f\u8017\u663e\u8457\u4f4e\u4e8e\u9ad8\u9891\u9ad8\u538b\u3002<\/p>\n<p>CPU \u7a7a\u95f2\u72b6\u6001&#xff1a; CPU\u6838\u5fc3\u53ef\u4ee5\u8fdb\u5165\u4e0d\u540c\u7684\u4f11\u7720\u72b6\u6001&#xff0c;\u5173\u95ed\u90e8\u5206\u6216\u5168\u90e8\u7535\u8def\u4ee5\u8282\u7701\u529f\u8017&#xff0c;\u4f46\u5524\u9192\u9700\u8981\u65f6\u95f4\u548c\u80fd\u91cf\u3002&#xff08;\u4ece\u4e0a\u7bc7\u6587\u7ae0\u6211\u4eec\u53ef\u4ee5\u77e5\u9053&#xff0c;\u5c0f\u7c73\u7384\u6212O1\u7684CPU\u6838\u5fc3&#xff0c;\u5e76\u975e\u6bcf\u4e2a\u90fd\u53ef\u4ee5\u8fdb\u5165\u7761\u7720\u72b6\u6001&#xff0c;\u5bf9\u4e8e\u529f\u8017\u5c0f\u4e14\u9700\u8981\u5904\u7406\u201c\u65e5\u5e38\u201d\u4e8b\u52a1\u7684A520\u6838\u5fc3\u6765\u8bf4&#xff0c;\u5c31\u65e0\u9700\u7761\u7720&#xff09;\u3002<\/p>\n<h3>2.2 \u57fa\u672c\u539f\u7406<\/h3>\n<h4>2.2.1 \u80fd\u91cf\u5efa\u6a21<\/h4>\n<p>EAS\u7684\u6838\u5fc3\u662f\u5efa\u7acb\u4e00\u4e2a\u7cfb\u7edf\u80fd\u91cf\u6a21\u578b\u3002\u8fd9\u4e2a\u6a21\u578b\u63cf\u8ff0\u4e86&#xff1a;<\/p>\n<p>\u4e0d\u540cCPU\u6838\u5fc3\u5728\u4e0d\u540c\u5de5\u4f5c\u9891\u7387\u4e0b\u6267\u884c\u4efb\u52a1\u65f6\u7684\u529f\u8017\u3002 \u4e0d\u540cCPU\u6838\u5fc3\u5728\u4e0d\u540c\u5de5\u4f5c\u9891\u7387\u4e0b\u6267\u884c\u4efb\u52a1\u7684\u6027\u80fd\/\u80fd\u529b\u3002 \u6838\u5fc3\u5728\u4e0d\u540c\u4f11\u7720\u72b6\u6001\u4e0b\u7684\u529f\u8017\u548c\u8fdb\u5165\/\u9000\u51fa\u8be5\u72b6\u6001\u7684\u5ef6\u8fdf\u4e0e\u80fd\u8017\u3002<\/p>\n<p>\u4ee5\u4e0b\u56fe\u4e3a\u4f8b&#xff0c;\u5c31\u662f\u67d0CPU\u6838\u5fc3\u7684\u9891\u7387-\u529f\u8017\u66f2\u7ebf\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250612072840-684a81a81655c.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"400\" \/> \u8fd9\u6837\u5c31\u540c\u65f6\u6db5\u76d6\u4e86CPU\u7684\u6682\u6001\u4e0e\u7a33\u6001\u6027\u80fd\u3002<\/p>\n<h4>2.2.2 \u4efb\u52a1\u653e\u7f6e\u51b3\u7b56<\/h4>\n<p><font size=\"4\" color=\"0000FF\">\u5f53\u6709\u65b0\u4efb\u52a1\u5524\u9192\u6216\u9700\u8981\u8fc1\u79fb\u65f6&#xff0c;EAS \u4e0d\u4ec5\u4ec5\u770b\u54ea\u4e2aCPU\u6700\u7a7a\u95f2&#xff0c;\u800c\u662f\u9884\u6d4b\u5c06\u4efb\u52a1\u653e\u5728\u54ea\u4e2aCPU\u6838\u5fc3\u4e0a\u8fd0\u884c&#xff0c;\u4ee5\u53ca\u8be5\u6838\u5fc3\u8fd0\u884c\u5728\u4ec0\u4e48\u9891\u7387\u4e0b&#xff0c;\u80fd\u4f7f\u5b8c\u6210\u8be5\u4efb\u52a1\u6240\u9700\u7684\u201c\u80fd\u91cf\u5ef6\u8fdf\u79ef\u201d\u6700\u5c0f\u5316\u6216\u6ee1\u8db3\u6027\u80fd\u7ea6\u675f\u4e0b\u7684\u80fd\u8017\u6700\u4f4e\u3002<\/font>\u4ece\u8fd9\u70b9\u5c31\u53ef\u4ee5\u770b\u51fa\u6765&#xff0c;\u80fd\u6548\u611f\u77e5\u8c03\u5ea6\u660e\u663e\u8981\u66f4\u52a0\u590d\u6742&#xff0c;\u4e14\u66f4\u52a0\u9002\u7528\u4e8e\u624b\u673a\u5904\u7406\u5668&#xff0c;\u6bd5\u7adf\u5bf9\u4e8e\u79fb\u52a8\u8bbe\u5907\u6765\u8bf4&#xff0c;\u7eed\u822a\u80fd\u529b&#x1f697;\u76f4\u63a5\u51b3\u5b9a\u4e86\u4f7f\u7528\u611f\u53d7\u3002<\/p>\n<p>\u2714\ufe0f\u504f\u597d\u5c0f\u6838&#xff1a; \u5bf9\u4e8e\u8f7b\u91cf\u7ea7\u3001\u540e\u53f0\u6216\u4e0d\u7d27\u6025\u7684\u4efb\u52a1&#xff0c;EAS \u4f1a\u4f18\u5148\u5c06\u5176\u8c03\u5ea6\u5230\u80fd\u6548\u6838\u5fc3\u4e0a\u8fd0\u884c\u3002\u56e0\u4e3a\u8fd9\u4e9b\u4efb\u52a1\u5728\u5c0f\u6838\u4e0a\u5c31\u80fd\u6ee1\u8db3\u6027\u80fd\u8981\u6c42&#xff0c;\u4e14\u529f\u8017\u8fdc\u4f4e\u4e8e\u5728\u5927\u6838\u4e0a\u8fd0\u884c\u3002<\/p>\n<p>\u2714\ufe0f\u9002\u65f6\u7528\u5927\u6838&#xff1a; \u5bf9\u4e8e\u8ba1\u7b97\u5bc6\u96c6\u578b\u3001\u5bf9\u5ef6\u8fdf\u654f\u611f\u6216\u9700\u8981\u9ad8\u541e\u5410\u91cf\u7684\u4efb\u52a1&#xff0c;EAS \u4f1a\u5c06\u5176\u8c03\u5ea6\u5230\u6027\u80fd\u6838\u5fc3\u4e0a\u8fd0\u884c&#xff0c;\u4ee5\u786e\u4fdd\u6027\u80fd\u8fbe\u6807\u3002\u540c\u65f6&#xff0c;\u5b83\u4f1a\u5c3d\u91cf\u8ba9\u5927\u6838\u8fd0\u884c\u5728\u80fd\u6ee1\u8db3\u4efb\u52a1\u9700\u6c42\u7684\u6700\u4f4e\u5fc5\u8981\u9891\u7387\u4e0a\u3002<\/p>\n<p>\u2714\ufe0f\u96c6\u7fa4\u611f\u77e5&#xff1a; \u8003\u8651\u5230CPU\u62d3\u6251&#xff08;\u5982\u54ea\u4e9b\u6838\u5fc3\u5171\u4eabL2\u7f13\u5b58\u3001\u7535\u6e90\u57df&#xff09;\u3002\u5c06\u76f8\u5173\u8054\u7684\u4efb\u52a1\u8c03\u5ea6\u5230\u5171\u4eab\u7f13\u5b58\u7684\u96c6\u7fa4\u5185\u6838\u5fc3\u4e0a\u8fd0\u884c&#xff0c;\u53ef\u4ee5\u51cf\u5c11\u7f13\u5b58\u5931\u6548&#xff0c;\u63d0\u9ad8\u6027\u80fd\u5e76\u95f4\u63a5\u8282\u80fd\u3002\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8de8\u96c6\u7fa4\u8fc1\u79fb\u3002<\/p>\n<h4>2.2.3 \u9891\u7387\u9009\u62e9<\/h4>\n<p>EAS \u4e0e schedutil CPU\u9891\u7387\u8c03\u63a7\u5668\u6df1\u5ea6\u96c6\u6210&#xff08;\u8fd9\u90e8\u5206\u5185\u5bb9\u4e5f\u975e\u5e38\u591a&#xff0c;\u540e\u9762\u6709\u65f6\u95f4\u53ef\u4ee5\u5355\u72ec\u5199\u4e00\u7bc7&#x1f4aa;&#xff09;\u3002<\/p>\n<p>\u4f20\u7edf\u7684\u8c03\u63a7\u5668\u53ef\u80fd\u53ea\u6839\u636e\u5355\u4e2aCPU\u7684\u5229\u7528\u7387\u8c03\u9891\u3002schedutil\u7ed3\u5408EAS\u7684\u80fd\u91cf\u6a21\u578b\u4fe1\u606f&#xff0c;\u505a\u51fa\u66f4\u5168\u5c40\u3001\u66f4\u7b26\u5408\u80fd\u6548\u76ee\u6807\u7684\u9891\u7387\u51b3\u7b56\u3002<\/p>\n<p>\u4f8b\u5982&#xff0c;\u5982\u679c\u4e00\u4e2a\u4efb\u52a1\u5728\u5c0f\u6838\u4e0a\u8fd0\u884c\u9700\u898180%\u7684\u5229\u7528\u7387\u624d\u80fd\u6ee1\u8db3\u8981\u6c42&#xff0c;\u800c\u5728\u5927\u6838\u4e0a\u53ea\u970020%\u7684\u5229\u7528\u7387&#xff0c;EAS \u7ed3\u5408 schedutil \u53ef\u80fd\u4f1a\u9009\u62e9\u5c06\u5176\u653e\u5728\u5927\u6838\u4e0a\u8fd0\u884c\u5728\u8f83\u4f4e\u9891\u7387&#xff0c;\u56e0\u4e3a\u8fd9\u6bd4\u8ba9\u5c0f\u6838\u8dd1\u6ee1\u9891\u66f4\u7701\u7535&#xff08;\u56e0\u4e3a\u5927\u6838\u4f4e\u9891\u7684\u5355\u4f4d\u6027\u80fd\u529f\u8017\u53ef\u80fd\u4f4e\u4e8e\u5c0f\u6838\u9ad8\u9891&#xff09;\u3002<\/p>\n<h4>2.2.4 \u5524\u9192\u51b3\u7b56<\/h4>\n<p>\u5f53\u4efb\u52a1\u4ece\u7761\u7720\u4e2d\u88ab\u5524\u9192\u65f6&#xff0c;EAS \u4f1a\u8bc4\u4f30&#xff1a;<\/p>\n<p>\u54ea\u4e2aCPU\u6838\u5fc3\u6700\u9002\u5408\u8fd0\u884c\u5b83&#xff08;\u8003\u8651\u80fd\u6548\u6a21\u578b\u3001\u4eb2\u548c\u6027\u3001\u7f13\u5b58\u70ed\u5ea6&#xff09;\u3002 \u5524\u9192\u8be5\u6838\u5fc3&#xff08;\u5982\u679c\u76ee\u6807\u6838\u5fc3\u5728\u4f11\u7720&#xff09;\u7684\u80fd\u8017\u5f00\u9500\u662f\u5426\u503c\u5f97\u3002 \u53ef\u80fd\u9009\u62e9\u5524\u9192\u4e00\u4e2a\u7a7a\u95f2\u7684\u5c0f\u6838\u6765\u8fd0\u884c\u8f7b\u91cf\u4efb\u52a1&#xff0c;\u800c\u4e0d\u662f\u5524\u9192\u4e00\u4e2a\u4f11\u7720\u7684\u5927\u6838\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250612072840-684a81a82bdb1.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>2.2.5 \u8d1f\u8f7d\u5747\u8861<\/h4>\n<p>\u4f20\u7edf\u7684\u8d1f\u8f7d\u5747\u8861\u4e3b\u8981\u8ffd\u6c42\u5404CPU\u6838\u5fc3\u7684\u8d1f\u8f7d\u5747\u5300\u3002EAS\u7684\u8d1f\u8f7d\u5747\u8861\u66f4\u6ce8\u91cd\u80fd\u6548\u5747\u8861\u3002<\/p>\n<p>\u5b83\u53ef\u80fd\u5141\u8bb8\u5c0f\u6838\u96c6\u7fa4\u8d1f\u8f7d\u8f83\u9ad8&#xff08;\u56e0\u4e3a\u5b83\u4eec\u5728\u8d1f\u8f7d\u4e0b\u7684\u80fd\u6548\u4f9d\u7136\u597d&#xff09;&#xff0c;\u800c\u8ba9\u5927\u6838\u96c6\u7fa4\u4fdd\u6301\u8f83\u4f4e\u8d1f\u8f7d\u751a\u81f3\u90e8\u5206\u6838\u5fc3\u4f11\u7720&#xff0c;\u53ea\u8981\u6574\u4f53\u7cfb\u7edf\u6027\u80fd\u548c\u54cd\u5e94\u6027\u8fbe\u6807\u3002<\/p>\n<p>\u8fc1\u79fb\u4efb\u52a1\u65f6&#xff0c;\u4f18\u5148\u8003\u8651\u8fc1\u79fb\u5230\u80fd\u6548\u66f4\u9ad8\u7684\u6838\u5fc3\u96c6\u7fa4&#xff0c;\u5e76\u8bc4\u4f30\u8fc1\u79fb\u5e26\u6765\u7684\u80fd\u8017\u6536\u76ca\u662f\u5426\u5927\u4e8e\u8fc1\u79fb\u64cd\u4f5c\u672c\u8eab\u7684\u80fd\u8017\u5f00\u9500\u3002<\/p>\n<h3>2.3 \u80fd\u6548\u5ea6\u91cf<\/h3>\n<h4>2.3.1 \u80fd\u6548\u8ba1\u7b97<\/h4>\n<p>\u80fd\u6548\u611f\u77e5\u8c03\u5ea6\u7684\u91cd\u8981\u4f9d\u636e&#xff0c;\u5c31\u662fCPU\u80fd\u8017&#xff0c;CPU\u80fd\u8017\u53ef\u6839\u636e\u4e0b\u9762\u7684\u516c\u5f0f\u8fdb\u884c\u8ba1\u7b97&#xff1a; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250612072840-684a81a86ed75.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"400\" \/> \u7a33\u6001\u8fd0\u884c\u80fd\u8017&#xff1a;\u8fd9\u4e2a\u5f00\u5934\u5c31\u63d0\u5230\u4e86&#xff0c;\u76f4\u63a5\u4ece\u66f2\u7ebf\u5c31\u53ef\u4ee5\u5f97\u5230\u3002 \u5524\u9192\u80fd\u8017&#xff1a;\u540c\u6837\u53ef\u4ee5\u901a\u8fc7\u66f2\u7ebf\u5f97\u5230\u3002 \u5ef6\u8fdf\u60e9\u7f5a&#xff1a;\u7528\u4e8e\u8861\u91cf\u56e0\u5ef6\u8fdf\u6ee1\u8db3\u4efb\u52a1\u9700\u6c42\u800c\u5bfc\u81f4\u7684\u7528\u6237\u4f53\u9a8c\u635f\u5931\u6216\u7cfb\u7edf\u6548\u7387\u4e0b\u964d\u3002\u5176\u672c\u8d28\u662f\u5c06\u201c\u65f6\u95f4\u654f\u611f\u5ea6\u201d\u8f6c\u5316\u4e3a\u53ef\u8ba1\u7b97\u7684\u80fd\u8017\u7b49\u4ef7\u91cf&#xff0c;\u4f7f\u8c03\u5ea6\u5668\u80fd\u5728\u6027\u80fd\u4e0e\u80fd\u6548\u95f4\u505a\u51fa\u6570\u5b66\u4e0a\u7684\u6700\u4f18\u51b3\u7b56\u3002<\/p>\n<h4>2.3.1 \u80fd\u6548\u8ba1\u7b97\u4e2d\u7684\u5ef6\u8fdf\u60e9\u7f5a<\/h4>\n<h5>\u6838\u5fc3\u601d\u60f3&#xff1a;\u65f6\u95f4\u4ef7\u503c\u91cf\u5316<\/h5>\n<p>\u82e5\u4e3a\u7701\u7535\u800c\u5ef6\u8fdf\u5904\u7406\u7528\u6237\u4ea4\u4e92&#xff08;\u5982\u70b9\u51fb\u54cd\u5e94&#xff09;&#xff0c;\u4f1a\u5bfc\u81f4\u5361\u987f&#xff0c;\u4f20\u7edf\u8c03\u5ea6\u5668\u65e0\u6cd5\u91cf\u5316\u201c\u5361\u987f\u201d\u7684\u6210\u672c\u3002\u5ef6\u8fdf\u60e9\u7f5a\u5c06\u5ef6\u8fdf\u65f6\u95f4\u6620\u5c04\u4e3a\u865a\u62df\u201c\u80fd\u8017\u60e9\u7f5a\u503c\u201d&#xff0c;\u4e0e\u5176\u4ed6\u80fd\u8017&#xff08;\u5982CPU\u529f\u8017&#xff09;\u7edf\u4e00\u91cf\u7eb2\u6bd4\u8f83\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250612072840-684a81a879e38.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"400\" \/> \u8fd9\u4e2a\u516c\u5f0f\u4e0e\u4e0a\u9762\u7684\u516c\u5f0f\u51e0\u4e4e\u662f\u4e00\u6837\u7684&#xff0c;\u53ea\u662f\u591a\u4e86\u4e2a\u5ef6\u8fdf\u60e9\u7f5a\u7684\u654f\u611f\u56e0\u5b50\u03b1\u3002 \u516c\u5f0f\u6211\u4eec\u77e5\u9053\u4e86&#xff0c;\u90a3\u4e48\u5ef6\u8fdf\u60e9\u7f5a\u5230\u5e95\u662f\u600e\u4e48\u7b97\u51fa\u6765\u7684\u5462&#xff1f; \u5ef6\u8fdf\u60e9\u7f5a\u603b\u5171\u67093\u79cd\u5ea6\u91cf\u65b9\u6cd5&#xff0c;\u5206\u522b\u662f&#xff1a;<\/p>\n<li>\u57fa\u4e8e\u4efb\u52a1\u7c7b\u578b\u7684\u5206\u7c7b\u5ea6\u91cf<\/li>\n<p>\u5f88\u7b80\u5355&#xff0c;\u5c31\u662f\u6839\u636e\u4e0d\u540c\u7684\u4efb\u52a1\u7c7b\u578b&#xff0c;\u4f7f\u7528\u4e0d\u540c\u7684\u60e9\u7f5a\u51fd\u6570&#xff0c;\u53ef\u4ee5\u770b\u5230\u7528\u6237\u4ea4\u4e92\u7684\u60e9\u7f5a\u51fd\u6570\u662f\u975e\u7ebf\u6027\u7684&#xff0c;\u8d85\u8fc7\u9608\u503ct max\u540e\u8fd0\u7b97\u7ed3\u679c\u4f1a\u6307\u6570\u4e0a\u5347\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250612072840-684a81a88434e.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<li>\u57fa\u4e8e\u786c\u4ef6\u4e8b\u4ef6\u7684\u52a8\u6001\u5ea6\u91cf<\/li>\n<p>\u57fa\u4e8e\u786c\u4ef6\u4e8b\u4ef6\u7684\u52a8\u6001\u5ea6\u91cf&#xff0c;\u6307\u7684\u662f\u7528\u6027\u80fd\u76d1\u6d4b\u5355\u5143&#xff08;PMU&#xff09;\u63d0\u4f9b\u7684\u6570\u636e\u8ba1\u7b97\u5ef6\u8fdf\u60e9\u7f5a&#xff0c;\u5ef6\u8fdf\u4e00\u822c\u4f1a\u6709\u4e24\u79cd\u6765\u6e90&#xff0c;\u5206\u522b\u662f<font size=\"4\" color=\"0000FF\">L2\u7f13\u5b58\u672a\u547d\u4e2d<\/font>\u548c<font size=\"4\" color=\"0000FF\">\u524d\u7aef\u505c\u987f<\/font>&#xff0c;\u5f53\u7136&#xff0c;\u8fd9\u4e2a\u524d\u7aef\u6307\u7684\u662fCPU\u6d41\u6c34\u7ebf\u7684\u524d\u7aef&#xff0c;\u524d\u7aef\u8d1f\u8d23\u83b7\u53d6\u548c\u89e3\u7801\u5c06\u8981\u6267\u884c\u7684\u6307\u4ee4\u3002\u57fa\u4e8e\u786c\u4ef6\u4e8b\u4ef6\u7684\u52a8\u6001\u5ea6\u91cf\u516c\u5f0f\u5982\u4e0b&#xff1a; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250612072840-684a81a8b144d.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"600\" \/> \u4ece\u4e0a\u9762\u7684\u516c\u5f0f\u4e5f\u53ef\u4ee5\u770b\u51fa\u6765&#xff0c;\u60e9\u7f5a\u6765\u81ea\u7f13\u5b58\u672a\u547d\u4e2d\u548c\u5206\u652f\u9884\u6d4b\u5931\u8d25&#xff0c;\u6bd5\u7adf\u5206\u652f\u9884\u6d4b\u5931\u8d25\u662f\u5bfc\u81f4\u524d\u7aef\u505c\u987f\u7684\u4e00\u4e2a\u91cd\u8981\u539f\u56e0&#xff08;\u5173\u4e8e\u5206\u652f\u9884\u6d4b\u6211\u4eec\u4f1a\u5728\u4e0b\u7bc7\u6587\u7ae0\u4e2d\u8be6\u7ec6\u8bb2\u89e3&#xff09;\u56e0\u6b64\u516c\u5f0f\u4e2d\u5e76\u672a\u5c06\u5176\u4ed6\u524d\u7aef\u505c\u987f\u7684\u56e0\u7d20\u5305\u542b\u8fdb\u53bb\u3002<\/p>\n<p>\u81f3\u4e8e\u5c0f\u7c73\u7384\u6212O1\u8fd9\u6b3eSOC\u5230\u5e95\u7528\u7684\u54ea\u79cd\u5ea6\u91cf\u65b9\u6cd5&#xff0c;\u4ece\u6211\u7684\u89d2\u5ea6\u6765\u8bf4&#xff0c;\u81f3\u5c11\u7528\u4e86\u5176\u4e2d\u4e00\u79cd\u3002\u800c\u4e14\u5f88\u660e\u663e&#xff0c;\u8fd92\u79cd\u65b9\u6cd5\u4e0d\u4f1a\u5b8c\u5168\u72ec\u7acb\u5f00\u6765&#xff0c;\u786c\u4ef6\u4e0e\u8f6f\u4ef6\u662f\u534f\u540c\u4f5c\u7528\u7684\u3002<\/p>\n<h4>2.3.3 \u80fd\u6548\u5ea6\u91cf\u7684\u5b9e\u9645\u6848\u4f8b<\/h4>\n<p>\u5047\u8bbe\u6709\u4e2a\u7528\u6237\u70b9\u51fb\u56fe\u6807\u542f\u52a8APP\u8fd9\u6837\u4e00\u4e2a\u573a\u666f&#xff0c;\u5f88\u660e\u663e\u662f\u5bf9\u5ef6\u8fdf\u975e\u5e38\u654f\u611f\u7684\u4e00\u4e2a\u4efb\u52a1\u3002\u57fa\u672c\u5c5e\u6027\u914d\u7f6e\u5982\u4e0b&#xff1a; \u7c7b\u578b&#xff1a;\u6700\u9ad8\u5ef6\u8fdf\u654f\u611f\u7ea7&#x1f4c8; \u6700\u5927\u5bb9\u5fcd\u5ef6\u8fdf&#xff1a;80ms \u6743\u91cd\u7cfb\u6570:Kui&#061;12<\/p>\n<p>\u51b3\u7b56\u9009\u9879&#xff1a; 1\ufe0f\u20e3\u5524\u9192\u5c0f\u6838&#xff08;\u5524\u9192\u5ef6\u8fdf 20ms&#xff0c;\u8fd0\u884c\u8017\u65f6 60ms \u2192 \u603b\u5ef6\u8fdf 80ms&#xff09;\u3002 \u5b9e\u9645\u80fd\u8017&#xff1a;\u5c0f\u6838\u5524\u9192(5mJ) &#043; \u8fd0\u884c(1.2GHz\u00d760ms&#061;8mJ) &#061; 13mJ \u5ef6\u8fdf\u60e9\u7f5a&#xff1a;<font size=\"5\">P<\/font>latency&#061;12*(80-80)^2 &#061; 0 \u603b\u6210\u672c&#xff1a;13mJ 2\ufe0f\u20e3\u5524\u9192\u5927\u6838&#xff08;\u5524\u9192\u5ef6\u8fdf 50ms&#xff0c;\u8fd0\u884c\u8017\u65f6 30ms \u2192 \u603b\u5ef6\u8fdf 80ms&#xff09;\u3002 \u5b9e\u9645\u80fd\u8017&#xff1a;\u5927\u6838\u5524\u9192(20mJ) &#043; \u8fd0\u884c(2.0GHz\u00d730ms&#061;25mJ) &#061; 45mJ \u5ef6\u8fdf\u60e9\u7f5a&#xff1a;\u540c\u6837\u662f0 \u603b\u6210\u672c&#xff1a;45mJ 3\ufe0f\u20e3\u7b49\u5f85\u5c0f\u6838\u7a7a\u95f2&#xff08;\u9884\u8ba1\u5ef6\u8fdf 150ms&#xff09;\u3002 \u5b9e\u9645\u80fd\u8017&#xff1a;\u5c0f\u6838\u5524\u9192(0mJ) &#043; \u8fd0\u884c(1.2GHz\u00d760ms&#061;8mJ) &#061; 8mJ \u5ef6\u8fdf\u60e9\u7f5a&#xff1a;<font size=\"5\">P<\/font>latency&#061;12*(150-80)^2 &#061; 58800mJ \u603b\u6210\u672c&#xff1a;\u8fbe\u5230\u4e86\u60ca\u4eba\u768458808mJ&#x1f4a5;<\/p>\n<p>\u6240\u4ee5\u6700\u7ec8\u9009\u62e9\u65b9\u68481\u8fdb\u884c\u4efb\u52a1\u8c03\u5ea6\u3002<\/p>\n<h2>3. \u5b8c\u5168\u516c\u5e73\u8c03\u5ea6 VS 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