{"id":39577,"date":"2025-05-24T07:41:10","date_gmt":"2025-05-23T23:41:10","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/39577.html"},"modified":"2025-05-24T07:41:10","modified_gmt":"2025-05-23T23:41:10","slug":"%e6%9c%8d%e5%8a%a1%e5%99%a8%e9%a2%86%e5%9f%9f%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96%e7%9a%84%e6%95%88%e6%9e%9c%e7%9b%91%e6%8e%a7%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/39577.html","title":{"rendered":"\u670d\u52a1\u5668\u9886\u57df\u670d\u52a1\u5668\u6027\u80fd\u4f18\u5316\u7684\u6548\u679c\u76d1\u63a7\u65b9\u6cd5"},"content":{"rendered":"<h2>\u670d\u52a1\u5668\u6027\u80fd\u4f18\u5316\u7684\u6548\u679c\u76d1\u63a7\u65b9\u6cd5<\/h2>\n<p>\u5173\u952e\u8bcd&#xff1a;\u670d\u52a1\u5668\u6027\u80fd\u4f18\u5316\u3001\u76d1\u63a7\u65b9\u6cd5\u3001\u6027\u80fd\u6307\u6807\u3001\u57fa\u51c6\u6d4b\u8bd5\u3001\u5b9e\u65f6\u76d1\u63a7\u3001\u65e5\u5fd7\u5206\u6790\u3001\u5bb9\u91cf\u89c4\u5212<\/p>\n<p>\u6458\u8981&#xff1a;\u672c\u6587\u6df1\u5165\u63a2\u8ba8\u4e86\u670d\u52a1\u5668\u6027\u80fd\u4f18\u5316\u7684\u6548\u679c\u76d1\u63a7\u65b9\u6cd5&#xff0c;\u4ece\u6027\u80fd\u6307\u6807\u5b9a\u4e49\u3001\u76d1\u63a7\u5de5\u5177\u9009\u62e9\u5230\u6570\u636e\u5206\u6790\u65b9\u6cd5\u8fdb\u884c\u4e86\u7cfb\u7edf\u6027\u7684\u4ecb\u7ecd\u3002\u6587\u7ae0\u9996\u5148\u4ecb\u7ecd\u4e86\u670d\u52a1\u5668\u6027\u80fd\u4f18\u5316\u7684\u57fa\u672c\u6982\u5ff5\u548c\u76d1\u63a7\u7684\u91cd\u8981\u6027&#xff0c;\u7136\u540e\u8be6\u7ec6\u8bb2\u89e3\u4e86\u5404\u79cd\u76d1\u63a7\u65b9\u6cd5\u548c\u5de5\u5177\u7684\u4f7f\u7528&#xff0c;\u5305\u62ec\u5b9e\u65f6\u76d1\u63a7\u3001\u65e5\u5fd7\u5206\u6790\u548c\u57fa\u51c6\u6d4b\u8bd5\u7b49\u3002\u6700\u540e&#xff0c;\u901a\u8fc7\u5b9e\u9645\u6848\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5c06\u8fd9\u4e9b\u65b9\u6cd5\u5e94\u7528\u4e8e\u751f\u4ea7\u73af\u5883&#xff0c;\u5e76\u5c55\u671b\u4e86\u672a\u6765\u670d\u52a1\u5668\u6027\u80fd\u76d1\u63a7\u7684\u53d1\u5c55\u8d8b\u52bf\u3002<\/p>\n<h3>1. 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\u9884\u671f\u8bfb\u8005<\/h4>\n<p>\u672c\u6587\u9002\u5408\u4ee5\u4e0b\u8bfb\u8005&#xff1a;<\/p>\n<ul>\n<li>\u7cfb\u7edf\u7ba1\u7406\u5458\u548cDevOps\u5de5\u7a0b\u5e08<\/li>\n<li>\u6027\u80fd\u4f18\u5316\u4e13\u5bb6<\/li>\n<li>\u57fa\u7840\u8bbe\u65bd\u67b6\u6784\u5e08<\/li>\n<li>\u6280\u672f\u56e2\u961f\u8d1f\u8d23\u4eba<\/li>\n<li>\u5bf9\u670d\u52a1\u5668\u6027\u80fd\u611f\u5174\u8da3\u7684\u5f00\u53d1\u4eba\u5458<\/li>\n<\/ul>\n<h4>1.3 \u6587\u6863\u7ed3\u6784\u6982\u8ff0<\/h4>\n<p>\u672c\u6587\u9996\u5148\u4ecb\u7ecd\u670d\u52a1\u5668\u6027\u80fd\u76d1\u63a7\u7684\u57fa\u672c\u6982\u5ff5&#xff0c;\u7136\u540e\u6df1\u5165\u63a2\u8ba8\u5404\u79cd\u76d1\u63a7\u65b9\u6cd5\u548c\u6280\u672f&#xff0c;\u63a5\u7740\u901a\u8fc7\u5b9e\u9645\u6848\u4f8b\u5c55\u793a\u8fd9\u4e9b\u65b9\u6cd5\u7684\u5e94\u7528&#xff0c;\u6700\u540e\u8ba8\u8bba\u672a\u6765\u53d1\u5c55\u8d8b\u52bf\u548c\u6311\u6218\u3002<\/p>\n<h4>1.4 \u672f\u8bed\u8868<\/h4>\n<h5>1.4.1 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Signals)&#xff1a;Google\u63d0\u51fa\u7684\u56db\u4e2a\u5173\u952e\u76d1\u63a7\u6307\u6807&#xff1a;\u5ef6\u8fdf\u3001\u6d41\u91cf\u3001\u9519\u8bef\u548c\u9971\u548c\u5ea6<\/li>\n<li>RED\u65b9\u6cd5&#xff1a;\u57fa\u4e8e\u8bf7\u6c42\u901f\u7387(Request rate)\u3001\u9519\u8bef\u7387(Error rate)\u548c\u6301\u7eed\u65f6\u95f4(Duration)\u7684\u76d1\u63a7\u65b9\u6cd5<\/li>\n<li>USE\u65b9\u6cd5&#xff1a;\u57fa\u4e8e\u5229\u7528\u7387(Utilization)\u3001\u9971\u548c\u5ea6(Saturation)\u548c\u9519\u8bef(Errors)\u7684\u8d44\u6e90\u76d1\u63a7\u65b9\u6cd5<\/li>\n<\/ul>\n<h5>1.4.3 \u7f29\u7565\u8bcd\u5217\u8868<\/h5>\n<ul>\n<li>QPS: Queries Per Second (\u6bcf\u79d2\u67e5\u8be2\u6570)<\/li>\n<li>TPS: Transactions Per Second (\u6bcf\u79d2\u4e8b\u52a1\u6570)<\/li>\n<li>IOPS: Input\/Output Operations Per Second (\u6bcf\u79d2\u8f93\u5165\/\u8f93\u51fa\u64cd\u4f5c\u6570)<\/li>\n<li>RUM: Real User Monitoring (\u771f\u5b9e\u7528\u6237\u76d1\u63a7)<\/li>\n<li>P95\/P99: 95\/99\u767e\u5206\u4f4d\u54cd\u5e94\u65f6\u95f4<\/li>\n<\/ul>\n<h3>2. \u6838\u5fc3\u6982\u5ff5\u4e0e\u8054\u7cfb<\/h3>\n<p>\u670d\u52a1\u5668\u6027\u80fd\u76d1\u63a7\u662f\u4e00\u4e2a\u591a\u5c42\u6b21\u3001\u591a\u7ef4\u5ea6\u7684\u7cfb\u7edf\u5de5\u7a0b&#xff0c;\u9700\u8981\u4ece\u4e0d\u540c\u89d2\u5ea6\u6536\u96c6\u548c\u5206\u6790\u6570\u636e\u3002\u4e0b\u56fe\u5c55\u793a\u4e86\u670d\u52a1\u5668\u6027\u80fd\u76d1\u63a7\u7684\u6838\u5fc3\u7ec4\u4ef6\u53ca\u5176\u76f8\u4e92\u5173\u7cfb&#xff1a;<\/p>\n<p>  #mermaid-svg-oPXE59X5x5mI6oC1 {font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;fill:#333;}#mermaid-svg-oPXE59X5x5mI6oC1 .error-icon{fill:#552222;}#mermaid-svg-oPXE59X5x5mI6oC1 .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-oPXE59X5x5mI6oC1 .edge-thickness-normal{stroke-width:2px;}#mermaid-svg-oPXE59X5x5mI6oC1 .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-oPXE59X5x5mI6oC1 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L-LE-H\"><\/span> <\/p>\n<p>           \u670d\u52a1\u5668\u786c\u4ef6 <\/p>\n<p>           \u64cd\u4f5c\u7cfb\u7edf\u6307\u6807 <\/p>\n<p>           \u5e94\u7528\u7a0b\u5e8f\u6307\u6807 <\/p>\n<p>           \u8d44\u6e90\u5229\u7528\u7387 <\/p>\n<p>           \u7cfb\u7edf\u8c03\u7528 <\/p>\n<p>           \u4e1a\u52a1\u6307\u6807 <\/p>\n<p>           \u6027\u80fd\u5206\u6790 <\/p>\n<p>           \u4f18\u5316\u51b3\u7b56 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&amp; \u5177\u4f53\u64cd\u4f5c\u6b65\u9aa4<\/h3>\n<h4>3.1 \u6027\u80fd\u6570\u636e\u91c7\u96c6\u7b97\u6cd5<\/h4>\n<p>\u6027\u80fd\u6570\u636e\u91c7\u96c6\u9700\u8981\u8003\u8651\u91c7\u6837\u9891\u7387\u3001\u6570\u636e\u7cbe\u5ea6\u548c\u7cfb\u7edf\u5f00\u9500\u4e4b\u95f4\u7684\u5e73\u8861\u3002\u4ee5\u4e0b\u662f\u57fa\u4e8e\u6307\u6570\u79fb\u52a8\u5e73\u5747(EMA)\u7684\u91c7\u6837\u7b97\u6cd5\u5b9e\u73b0&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> time<br \/>\n<span class=\"token keyword\">import<\/span> math<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">EMAMetricCollector<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">def<\/span> <span class=\"token function\">__init__<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">,<\/span> alpha<span class=\"token operator\">&#061;<\/span><span class=\"token number\">0.2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>alpha <span class=\"token operator\">&#061;<\/span> alpha  <span class=\"token comment\"># \u5e73\u6ed1\u56e0\u5b50<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>current_value <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">None<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>last_timestamp <span class=\"token operator\">&#061;<\/span> time<span class=\"token punctuation\">.<\/span>time<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">def<\/span> <span class=\"token function\">update<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">,<\/span> new_value<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        now <span class=\"token operator\">&#061;<\/span> time<span class=\"token punctuation\">.<\/span>time<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        time_delta <span class=\"token operator\">&#061;<\/span> now <span class=\"token operator\">&#8211;<\/span> self<span class=\"token punctuation\">.<\/span>last_timestamp<br \/>\n        self<span class=\"token punctuation\">.<\/span>last_timestamp <span class=\"token operator\">&#061;<\/span> now<\/p>\n<p>        <span class=\"token keyword\">if<\/span> self<span class=\"token punctuation\">.<\/span>current_value <span class=\"token keyword\">is<\/span> <span class=\"token boolean\">None<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            self<span class=\"token punctuation\">.<\/span>current_value <span class=\"token operator\">&#061;<\/span> new_value<br \/>\n        <span class=\"token keyword\">else<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            <span class=\"token comment\"># \u57fa\u4e8e\u65f6\u95f4\u52a0\u6743\u7684EMA\u8ba1\u7b97<\/span><br \/>\n            weight <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span> <span class=\"token operator\">&#8211;<\/span> math<span class=\"token punctuation\">.<\/span>exp<span class=\"token punctuation\">(<\/span><span class=\"token operator\">&#8211;<\/span>time_delta <span class=\"token operator\">*<\/span> self<span class=\"token punctuation\">.<\/span>alpha<span class=\"token punctuation\">)<\/span><br \/>\n            self<span class=\"token punctuation\">.<\/span>current_value <span class=\"token operator\">&#061;<\/span> self<span class=\"token punctuation\">.<\/span>current_value <span class=\"token operator\">*<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span> <span class=\"token operator\">&#8211;<\/span> weight<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> new_value <span class=\"token operator\">*<\/span> weight<\/p>\n<p>        <span class=\"token keyword\">return<\/span> self<span class=\"token punctuation\">.<\/span>current_value<\/p>\n<p><span class=\"token comment\"># \u4f7f\u7528\u793a\u4f8b<\/span><br \/>\ncollector <span class=\"token operator\">&#061;<\/span> EMAMetricCollector<span class=\"token punctuation\">(<\/span>alpha<span class=\"token operator\">&#061;<\/span><span class=\"token number\">0.1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">range<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token comment\"># \u6a21\u62df\u83b7\u53d6CPU\u4f7f\u7528\u7387<\/span><br \/>\n    cpu_usage <span class=\"token operator\">&#061;<\/span> get_cpu_usage<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u5047\u8bbe\u6709\u8fd9\u4e2a\u65b9\u6cd5<\/span><br \/>\n    smoothed_value <span class=\"token operator\">&#061;<\/span> collector<span class=\"token punctuation\">.<\/span>update<span class=\"token punctuation\">(<\/span>cpu_usage<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;Raw: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>cpu_usage<span class=\"token punctuation\">:<\/span><span class=\"token format-spec\">.2f<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">%, Smoothed: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>smoothed_value<span class=\"token punctuation\">:<\/span><span class=\"token format-spec\">.2f<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">%&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n    time<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">0.5<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h4>3.2 \u5f02\u5e38\u68c0\u6d4b\u7b97\u6cd5<\/h4>\n<p>\u4f7f\u7528Z-Score\u7b97\u6cd5\u68c0\u6d4b\u6027\u80fd\u6307\u6807\u7684\u5f02\u5e38\u6ce2\u52a8&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> numpy <span class=\"token keyword\">as<\/span> np<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">AnomalyDetector<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">def<\/span> <span class=\"token function\">__init__<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">,<\/span> window_size<span class=\"token operator\">&#061;<\/span><span class=\"token number\">60<\/span><span class=\"token punctuation\">,<\/span> threshold<span class=\"token operator\">&#061;<\/span><span class=\"token number\">3.0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>window_size <span class=\"token operator\">&#061;<\/span> window_size<br \/>\n        self<span class=\"token punctuation\">.<\/span>threshold <span class=\"token operator\">&#061;<\/span> threshold<br \/>\n        self<span class=\"token punctuation\">.<\/span>values <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p>    <span class=\"token keyword\">def<\/span> <span class=\"token function\">add_value<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">,<\/span> value<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>values<span class=\"token punctuation\">.<\/span>append<span class=\"token punctuation\">(<\/span>value<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token builtin\">len<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">.<\/span>values<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;<\/span> self<span class=\"token punctuation\">.<\/span>window_size<span class=\"token punctuation\">:<\/span><br \/>\n            self<span class=\"token punctuation\">.<\/span>values<span class=\"token punctuation\">.<\/span>pop<span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">def<\/span> <span class=\"token function\">detect<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">,<\/span> new_value<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token builtin\">len<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">.<\/span>values<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> self<span class=\"token punctuation\">.<\/span>window_size<span class=\"token punctuation\">:<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">False<\/span><\/p>\n<p>        mean <span class=\"token operator\">&#061;<\/span> np<span class=\"token punctuation\">.<\/span>mean<span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">.<\/span>values<span class=\"token punctuation\">)<\/span><br \/>\n        std <span class=\"token operator\">&#061;<\/span> np<span class=\"token punctuation\">.<\/span>std<span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">.<\/span>values<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> std <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">:<\/span>  <span class=\"token comment\"># \u907f\u514d\u9664\u4ee50<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">False<\/span><\/p>\n<p>        z_score <span class=\"token operator\">&#061;<\/span> <span class=\"token builtin\">abs<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>new_value <span class=\"token operator\">&#8211;<\/span> mean<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> std<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> z_score <span class=\"token operator\">&gt;<\/span> self<span class=\"token punctuation\">.<\/span>threshold<\/p>\n<p><span class=\"token comment\"># \u4f7f\u7528\u793a\u4f8b<\/span><br \/>\ndetector <span class=\"token operator\">&#061;<\/span> AnomalyDetector<span class=\"token punctuation\">(<\/span>window_size<span class=\"token operator\">&#061;<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span> threshold<span class=\"token operator\">&#061;<\/span><span class=\"token number\">2.5<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">range<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    value <span class=\"token operator\">&#061;<\/span> np<span class=\"token punctuation\">.<\/span>random<span class=\"token punctuation\">.<\/span>normal<span class=\"token punctuation\">(<\/span><span class=\"token number\">50<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u6b63\u5e38\u503c\u572850\u5de6\u53f3\u6ce2\u52a8<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> i <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">15<\/span><span class=\"token punctuation\">:<\/span>  <span class=\"token comment\"># \u6a21\u62df\u5f02\u5e38<\/span><br \/>\n        value <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">80<\/span><br \/>\n    detector<span class=\"token punctuation\">.<\/span>add_value<span class=\"token punctuation\">(<\/span>value<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> detector<span class=\"token punctuation\">.<\/span>detect<span class=\"token punctuation\">(<\/span>value<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;Anomaly detected at <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>i<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>value<span class=\"token punctuation\">:<\/span><span class=\"token format-spec\">.2f<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h3>4. \u6570\u5b66\u6a21\u578b\u548c\u516c\u5f0f &amp; \u8be6\u7ec6\u8bb2\u89e3 &amp; \u4e3e\u4f8b\u8bf4\u660e<\/h3>\n<h4>4.1 \u6027\u80fd\u6307\u6807\u91cf\u5316\u6a21\u578b<\/h4>\n<p>\u670d\u52a1\u5668\u6027\u80fd\u53ef\u4ee5\u901a\u8fc7\u591a\u4e2a\u7ef4\u5ea6\u6765\u91cf\u5316&#xff0c;\u5e38\u7528\u7684\u6570\u5b66\u6a21\u578b\u5305\u62ec&#xff1a;<\/p>\n<li>\n<p>\u8d44\u6e90\u5229\u7528\u7387\u6a21\u578b&#xff1a; <span class=\"katex--display\"><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>            U <\/p>\n<p>            &#061; <\/p>\n<p>             B <\/p>\n<p>             C <\/p>\n<p>            \u00d7 <\/p>\n<p>            100 <\/p>\n<p>            % <\/p>\n<p>           U &#061; \\\\frac{B}{C} \\\\times 100\\\\% <\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.6833em\"><\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.109em\">U<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 2.0463em;vertical-align: -0.686em\"><\/span><span class=\"mord\"><span class=\"mopen nulldelimiter\"><\/span><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.3603em\"><span class=\"\" style=\"top: -2.314em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.0715em\">C<\/span><\/span><\/span><span class=\"\" style=\"top: -3.23em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"frac-line\" style=\"border-bottom-width: 0.04em\"><\/span><\/span><span class=\"\" style=\"top: -3.677em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.0502em\">B<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.686em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><span class=\"mclose nulldelimiter\"><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u00d7<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.8056em;vertical-align: -0.0556em\"><\/span><span class=\"mord\">100%<\/span><\/span><\/span><\/span><\/span><\/span> \u5176\u4e2d&#xff0c;<span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>           U <\/p>\n<p>          U <\/p>\n<p>      <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.6833em\"><\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.109em\">U<\/span><\/span><\/span><\/span><\/span>\u662f\u8d44\u6e90\u5229\u7528\u7387&#xff0c;<span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>           B <\/p>\n<p>          B <\/p>\n<p>      <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.6833em\"><\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0502em\">B<\/span><\/span><\/span><\/span><\/span>\u662f\u8d44\u6e90\u4f7f\u7528\u91cf&#xff0c;<span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>           C <\/p>\n<p>          C <\/p>\n<p>      <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.6833em\"><\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0715em\">C<\/span><\/span><\/span><\/span><\/span>\u662f\u8d44\u6e90\u5bb9\u91cf\u3002<\/p>\n<\/li>\n<li>\n<p>\u54cd\u5e94\u65f6\u95f4\u5206\u5e03\u6a21\u578b&#xff1a; \u54cd\u5e94\u65f6\u95f4\u901a\u5e38\u670d\u4ece\u5bf9\u6570\u6b63\u6001\u5206\u5e03&#xff1a; <span class=\"katex--display\"><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>            f <\/p>\n<p>            ( <\/p>\n<p>            x <\/p>\n<p>            ) <\/p>\n<p>            &#061; <\/p>\n<p>             1 <\/p>\n<p>              x <\/p>\n<p>              \u03c3 <\/p>\n<p>                2 <\/p>\n<p>                \u03c0 <\/p>\n<p>             e <\/p>\n<p>              \u2212 <\/p>\n<p>                ( <\/p>\n<p>                ln <\/p>\n<p>                \u2061 <\/p>\n<p>                x <\/p>\n<p>                \u2212 <\/p>\n<p>                \u03bc <\/p>\n<p>                 ) <\/p>\n<p>                 2 <\/p>\n<p>                2 <\/p>\n<p>                 \u03c3 <\/p>\n<p>                 2 <\/p>\n<p>           f(x) &#061; \\\\frac{1}{x\\\\sigma\\\\sqrt{2\\\\pi}} e^{-\\\\frac{(\\\\ln x &#8211; \\\\mu)^2}{2\\\\sigma^2}} <\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.1076em\">f<\/span><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">x<\/span><span class=\"mclose\">)<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 2.2591em;vertical-align: -0.93em\"><\/span><span class=\"mord\"><span class=\"mopen nulldelimiter\"><\/span><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.3214em\"><span class=\"\" style=\"top: -2.2028em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\">x<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">\u03c3<\/span><span class=\"mord sqrt\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.9072em\"><span class=\"svg-align\" style=\"top: -3em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\" style=\"padding-left: 0.833em\"><span class=\"mord\">2<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">\u03c0<\/span><\/span><\/span><span class=\"\" style=\"top: -2.8672em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"hide-tail\" style=\"min-width: 0.853em;height: 1.08em\"> <\/p>\n<p>                     <\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.1328em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"\" style=\"top: -3.23em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"frac-line\" style=\"border-bottom-width: 0.04em\"><\/span><\/span><span class=\"\" style=\"top: -3.677em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord\">1<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.93em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><span class=\"mclose nulldelimiter\"><\/span><\/span><span class=\"mord\"><span class=\"mord mathnormal\">e<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.3291em\"><span class=\"\" style=\"top: -3.4534em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\">\u2212<\/span><span class=\"mord mtight\"><span class=\"mopen nulldelimiter sizing reset-size3 size6\"><\/span><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.251em\"><span class=\"\" style=\"top: -2.5062em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"sizing reset-size3 size1 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\">2<\/span><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0359em\">\u03c3<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.9384em\"><span class=\"\" style=\"top: -2.9384em;margin-right: 0.1em\"><span class=\"pstrut\" style=\"height: 2.6444em\"><\/span><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"\" style=\"top: -3.2255em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"frac-line mtight\" style=\"border-bottom-width: 0.049em\"><\/span><\/span><span class=\"\" style=\"top: -3.5021em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"sizing reset-size3 size1 mtight\"><span class=\"mord mtight\"><span class=\"mopen mtight\">(<\/span><span class=\"mop mtight\"><span class=\"mtight\">l<\/span><span class=\"mtight\">n<\/span><\/span><span class=\"mspace mtight\" style=\"margin-right: 0.2453em\"><\/span><span class=\"mord mathnormal mtight\">x<\/span><span class=\"mbin mtight\">\u2212<\/span><span class=\"mord mathnormal mtight\">\u03bc<\/span><span class=\"mclose mtight\"><span class=\"mclose mtight\">)<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.0484em\"><span class=\"\" style=\"top: -3.0484em;margin-right: 0.1em\"><span class=\"pstrut\" style=\"height: 2.6444em\"><\/span><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.4938em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><span class=\"mclose nulldelimiter sizing reset-size3 size6\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> \u5176\u4e2d&#xff0c;<span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>           \u03bc <\/p>\n<p>          \\\\mu <\/p>\n<p>      <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.625em;vertical-align: -0.1944em\"><\/span><span class=\"mord mathnormal\">\u03bc<\/span><\/span><\/span><\/span><\/span>\u662f\u5bf9\u6570\u5747\u503c&#xff0c;<span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>           \u03c3 <\/p>\n<p>          \\\\sigma <\/p>\n<p>      <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.4306em\"><\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">\u03c3<\/span><\/span><\/span><\/span><\/span>\u662f\u5bf9\u6570\u6807\u51c6\u5dee\u3002<\/p>\n<\/li>\n<li>\n<p>\u6392\u961f\u6a21\u578b(M\/M\/1)&#xff1a; \u5bf9\u4e8e\u5355\u670d\u52a1\u961f\u5217\u7cfb\u7edf&#xff0c;\u5e73\u5747\u54cd\u5e94\u65f6\u95f4&#xff1a; <span class=\"katex--display\"><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>            T <\/p>\n<p>            &#061; <\/p>\n<p>             1 <\/p>\n<p>              \u03bc <\/p>\n<p>              \u2212 <\/p>\n<p>              \u03bb <\/p>\n<p>           T &#061; \\\\frac{1}{\\\\mu &#8211; \\\\lambda} <\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.6833em\"><\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.1389em\">T<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 2.2019em;vertical-align: -0.8804em\"><\/span><span class=\"mord\"><span class=\"mopen nulldelimiter\"><\/span><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.3214em\"><span class=\"\" style=\"top: -2.314em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\">\u03bc<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u2212<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mord mathnormal\">\u03bb<\/span><\/span><\/span><span class=\"\" style=\"top: -3.23em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"frac-line\" style=\"border-bottom-width: 0.04em\"><\/span><\/span><span class=\"\" style=\"top: -3.677em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord\">1<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.8804em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><span class=\"mclose nulldelimiter\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span> \u5176\u4e2d&#xff0c;<span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>           \u03bb <\/p>\n<p>          \\\\lambda <\/p>\n<p>      <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.6944em\"><\/span><span class=\"mord mathnormal\">\u03bb<\/span><\/span><\/span><\/span><\/span>\u662f\u5230\u8fbe\u7387&#xff0c;<span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>           \u03bc <\/p>\n<p>          \\\\mu <\/p>\n<p>      <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.625em;vertical-align: -0.1944em\"><\/span><span class=\"mord mathnormal\">\u03bc<\/span><\/span><\/span><\/span><\/span>\u662f\u670d\u52a1\u7387\u3002<\/p>\n<\/li>\n<h4>4.2 \u6027\u80fd\u57fa\u51c6\u6d4b\u8bd5\u7684\u7edf\u8ba1\u5b66\u65b9\u6cd5<\/h4>\n<p>\u5728\u8fdb\u884c\u6027\u80fd\u6bd4\u8f83\u65f6&#xff0c;\u9700\u8981\u4f7f\u7528\u7edf\u8ba1\u5b66\u65b9\u6cd5\u786e\u4fdd\u7ed3\u679c\u7684\u53ef\u9760\u6027&#xff1a;<\/p>\n<li>\n<p>\u7f6e\u4fe1\u533a\u95f4\u8ba1\u7b97&#xff1a; <span class=\"katex--display\"><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>             x <\/p>\n<p>             \u02c9 <\/p>\n<p>            \u00b1 <\/p>\n<p>             t <\/p>\n<p>              \u03b1 <\/p>\n<p>              \/ <\/p>\n<p>              2 <\/p>\n<p>              , <\/p>\n<p>              n <\/p>\n<p>              \u2212 <\/p>\n<p>              1 <\/p>\n<p>            \u00d7 <\/p>\n<p>             s <\/p>\n<p>              n <\/p>\n<p>           \\\\bar{x} \\\\pm t_{\\\\alpha\/2,n-1} \\\\times \\\\frac{s}{\\\\sqrt{n}} <\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.6667em;vertical-align: -0.0833em\"><\/span><span class=\"mord accent\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.5678em\"><span class=\"\" style=\"top: -3em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord mathnormal\">x<\/span><\/span><span class=\"\" style=\"top: -3em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"accent-body\" style=\"left: -0.2222em\"><span class=\"mord\">\u02c9<\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u00b1<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.9703em;vertical-align: -0.3552em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\">t<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3448em\"><span class=\"\" style=\"top: -2.5198em;margin-left: 0em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0037em\">\u03b1<\/span><span class=\"mord mtight\">\/2<\/span><span class=\"mpunct mtight\">,<\/span><span class=\"mord mathnormal mtight\">n<\/span><span class=\"mbin mtight\">\u2212<\/span><span class=\"mord mtight\">1<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3552em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u00d7<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 2.0376em;vertical-align: -0.93em\"><\/span><span class=\"mord\"><span class=\"mopen nulldelimiter\"><\/span><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.1076em\"><span class=\"\" style=\"top: -2.3097em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord sqrt\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.8003em\"><span class=\"svg-align\" style=\"top: -3em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\" style=\"padding-left: 0.833em\"><span class=\"mord mathnormal\">n<\/span><\/span><\/span><span class=\"\" style=\"top: -2.7603em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"hide-tail\" style=\"min-width: 0.853em;height: 1.08em\"> <\/p>\n<p>                     <\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.2397em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"\" style=\"top: -3.23em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"frac-line\" style=\"border-bottom-width: 0.04em\"><\/span><\/span><span class=\"\" style=\"top: -3.677em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\">s<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.93em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><span class=\"mclose nulldelimiter\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span> \u5176\u4e2d&#xff0c;<span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>            x <\/p>\n<p>            \u02c9 <\/p>\n<p>          \\\\bar{x} <\/p>\n<p>      <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.5678em\"><\/span><span class=\"mord accent\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.5678em\"><span class=\"\" style=\"top: -3em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord mathnormal\">x<\/span><\/span><span class=\"\" style=\"top: -3em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"accent-body\" style=\"left: -0.2222em\"><span class=\"mord\">\u02c9<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u662f\u6837\u672c\u5747\u503c&#xff0c;<span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>           s <\/p>\n<p>          s <\/p>\n<p>      <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.4306em\"><\/span><span class=\"mord mathnormal\">s<\/span><\/span><\/span><\/span><\/span>\u662f\u6837\u672c\u6807\u51c6\u5dee&#xff0c;<span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>           n <\/p>\n<p>          n <\/p>\n<p>      <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.4306em\"><\/span><span class=\"mord mathnormal\">n<\/span><\/span><\/span><\/span><\/span>\u662f\u6837\u672c\u5927\u5c0f&#xff0c;<span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>           t <\/p>\n<p>          t <\/p>\n<p>      <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.6151em\"><\/span><span class=\"mord mathnormal\">t<\/span><\/span><\/span><\/span><\/span>\u662ft\u5206\u5e03\u4e34\u754c\u503c\u3002<\/p>\n<\/li>\n<li>\n<p>\u5047\u8bbe\u68c0\u9a8c(t\u68c0\u9a8c)&#xff1a; \u68c0\u9a8c\u4e24\u7ec4\u6027\u80fd\u6570\u636e\u662f\u5426\u6709\u663e\u8457\u5dee\u5f02&#xff1a; <span class=\"katex--display\"><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>            t <\/p>\n<p>            &#061; <\/p>\n<p>                x <\/p>\n<p>                \u02c9 <\/p>\n<p>               1 <\/p>\n<p>              \u2212 <\/p>\n<p>                x <\/p>\n<p>                \u02c9 <\/p>\n<p>               2 <\/p>\n<p>                 s <\/p>\n<p>                 1 <\/p>\n<p>                 2 <\/p>\n<p>                 n <\/p>\n<p>                 1 <\/p>\n<p>               &#043; <\/p>\n<p>                 s <\/p>\n<p>                 2 <\/p>\n<p>                 2 <\/p>\n<p>                 n <\/p>\n<p>                 2 <\/p>\n<p>           t &#061; \\\\frac{\\\\bar{x}_1 &#8211; \\\\bar{x}_2}{\\\\sqrt{\\\\frac{s_1^2}{n_1} &#043; \\\\frac{s_2^2}{n_2}}} <\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.6151em\"><\/span><span class=\"mord mathnormal\">t<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 2.9903em;vertical-align: -1.73em\"><\/span><span class=\"mord\"><span class=\"mopen nulldelimiter\"><\/span><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.2603em\"><span class=\"\" style=\"top: -2.11em\"><span class=\"pstrut\" style=\"height: 3.3083em\"><\/span><span class=\"mord\"><span class=\"mord sqrt\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.3083em\"><span class=\"svg-align\" style=\"top: -3.8em\"><span class=\"pstrut\" style=\"height: 3.8em\"><\/span><span class=\"mord\" style=\"padding-left: 1em\"><span class=\"mord\"><span class=\"mopen nulldelimiter\"><\/span><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.0916em\"><span class=\"\" style=\"top: -2.655em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">n<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3173em\"><span class=\"\" style=\"top: -2.357em;margin-left: 0em;margin-right: 0.0714em\"><span class=\"pstrut\" style=\"height: 2.5em\"><\/span><span class=\"sizing reset-size3 size1 mtight\"><span class=\"mord mtight\">1<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.143em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"\" style=\"top: -3.23em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"frac-line\" style=\"border-bottom-width: 0.04em\"><\/span><\/span><span class=\"\" style=\"top: -3.5281em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">s<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.8051em\"><span class=\"\" style=\"top: -2.1885em;margin-left: 0em;margin-right: 0.0714em\"><span class=\"pstrut\" style=\"height: 2.5em\"><\/span><span class=\"sizing reset-size3 size1 mtight\"><span class=\"mord mtight\">1<\/span><\/span><\/span><span class=\"\" style=\"top: -2.8448em;margin-right: 0.0714em\"><span class=\"pstrut\" style=\"height: 2.5em\"><\/span><span class=\"sizing reset-size3 size1 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3115em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.4451em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><span class=\"mclose nulldelimiter\"><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">&#043;<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mord\"><span class=\"mopen nulldelimiter\"><\/span><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.0916em\"><span class=\"\" style=\"top: -2.655em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">n<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3173em\"><span class=\"\" style=\"top: -2.357em;margin-left: 0em;margin-right: 0.0714em\"><span class=\"pstrut\" style=\"height: 2.5em\"><\/span><span class=\"sizing reset-size3 size1 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.143em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"\" style=\"top: -3.23em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"frac-line\" style=\"border-bottom-width: 0.04em\"><\/span><\/span><span class=\"\" style=\"top: -3.5281em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">s<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.8051em\"><span class=\"\" style=\"top: -2.1885em;margin-left: 0em;margin-right: 0.0714em\"><span class=\"pstrut\" style=\"height: 2.5em\"><\/span><span class=\"sizing reset-size3 size1 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><span class=\"\" style=\"top: -2.8448em;margin-right: 0.0714em\"><span class=\"pstrut\" style=\"height: 2.5em\"><\/span><span class=\"sizing reset-size3 size1 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3115em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.4451em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><span class=\"mclose nulldelimiter\"><\/span><\/span><\/span><\/span><span class=\"\" style=\"top: -3.2683em\"><span class=\"pstrut\" style=\"height: 3.8em\"><\/span><span class=\"hide-tail\" style=\"min-width: 1.02em;height: 1.88em\"> <\/p>\n<p>                     <\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.5317em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"\" style=\"top: -3.5383em\"><span class=\"pstrut\" style=\"height: 3.3083em\"><\/span><span class=\"frac-line\" style=\"border-bottom-width: 0.04em\"><\/span><\/span><span class=\"\" style=\"top: -3.9853em\"><span class=\"pstrut\" style=\"height: 3.3083em\"><\/span><span class=\"mord\"><span class=\"mord\"><span class=\"mord accent\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.5678em\"><span class=\"\" style=\"top: -3em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord mathnormal\">x<\/span><\/span><span class=\"\" style=\"top: -3em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"accent-body\" style=\"left: -0.2222em\"><span class=\"mord\">\u02c9<\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3011em\"><span class=\"\" style=\"top: -2.55em;margin-left: 0em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">1<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u2212<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mord\"><span class=\"mord accent\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.5678em\"><span class=\"\" style=\"top: -3em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord mathnormal\">x<\/span><\/span><span class=\"\" style=\"top: -3em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"accent-body\" style=\"left: -0.2222em\"><span class=\"mord\">\u02c9<\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3011em\"><span class=\"\" style=\"top: -2.55em;margin-left: 0em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.73em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><span class=\"mclose nulldelimiter\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<\/li>\n<h4>4.3 \u5bb9\u91cf\u89c4\u5212\u6a21\u578b<\/h4>\n<p>\u9884\u6d4b\u672a\u6765\u8d44\u6e90\u9700\u6c42\u7684\u7ebf\u6027\u56de\u5f52\u6a21\u578b&#xff1a; <span class=\"katex--display\"><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>          y <\/p>\n<p>          &#061; <\/p>\n<p>           \u03b2 <\/p>\n<p>           0 <\/p>\n<p>          &#043; <\/p>\n<p>           \u03b2 <\/p>\n<p>           1 <\/p>\n<p>          x <\/p>\n<p>          &#043; <\/p>\n<p>          \u03f5 <\/p>\n<p>         y &#061; \\\\beta_0 &#043; \\\\beta_1 x &#043; \\\\epsilon <\/p>\n<p>     <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.625em;vertical-align: -0.1944em\"><\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">y<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.8889em;vertical-align: -0.1944em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.0528em\">\u03b2<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3011em\"><span class=\"\" style=\"top: -2.55em;margin-left: -0.0528em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">0<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">&#043;<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.8889em;vertical-align: -0.1944em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.0528em\">\u03b2<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3011em\"><span class=\"\" style=\"top: -2.55em;margin-left: -0.0528em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">1<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mord mathnormal\">x<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">&#043;<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.4306em\"><\/span><span class=\"mord mathnormal\">\u03f5<\/span><\/span><\/span><\/span><\/span><\/span> \u5176\u4e2d&#xff0c;<span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>         y <\/p>\n<p>        y <\/p>\n<p>    <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.625em;vertical-align: -0.1944em\"><\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">y<\/span><\/span><\/span><\/span><\/span>\u662f\u8d44\u6e90\u9700\u6c42&#xff0c;<span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>         x <\/p>\n<p>        x <\/p>\n<p>    <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.4306em\"><\/span><span class=\"mord mathnormal\">x<\/span><\/span><\/span><\/span><\/span>\u662f\u4e1a\u52a1\u6307\u6807(\u5982\u7528\u6237\u6570)&#xff0c;<span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>         \u03b2 <\/p>\n<p>        \\\\beta <\/p>\n<p>    <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.8889em;vertical-align: -0.1944em\"><\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0528em\">\u03b2<\/span><\/span><\/span><\/span><\/span>\u662f\u56de\u5f52\u7cfb\u6570&#xff0c;<span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"> <\/p>\n<p>         \u03f5 <\/p>\n<p>        \\\\epsilon <\/p>\n<p>    <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.4306em\"><\/span><span class=\"mord mathnormal\">\u03f5<\/span><\/span><\/span><\/span><\/span>\u662f\u8bef\u5dee\u9879\u3002<\/p>\n<h3>5. \u9879\u76ee\u5b9e\u6218&#xff1a;\u4ee3\u7801\u5b9e\u9645\u6848\u4f8b\u548c\u8be6\u7ec6\u89e3\u91ca\u8bf4\u660e<\/h3>\n<h4>5.1 \u5f00\u53d1\u73af\u5883\u642d\u5efa<\/h4>\n<h5>5.1.1 \u786c\u4ef6\u8981\u6c42<\/h5>\n<ul>\n<li>\u6d4b\u8bd5\u670d\u52a1\u5668&#xff1a;\u81f3\u5c114\u6838CPU&#xff0c;8GB\u5185\u5b58<\/li>\n<li>\u5b58\u50a8&#xff1a;SSD\u786c\u76d8&#xff0c;\u81f3\u5c1150GB\u53ef\u7528\u7a7a\u95f4<\/li>\n<li>\u7f51\u7edc&#xff1a;\u5343\u5146\u4ee5\u592a\u7f51\u8fde\u63a5<\/li>\n<\/ul>\n<h5>5.1.2 \u8f6f\u4ef6\u4f9d\u8d56<\/h5>\n<ul>\n<li>\u64cd\u4f5c\u7cfb\u7edf&#xff1a;Ubuntu 20.04 LTS<\/li>\n<li>\u76d1\u63a7\u5de5\u5177\u6808&#xff1a;\n<ul>\n<li>Prometheus (\u6307\u6807\u6536\u96c6)<\/li>\n<li>Grafana (\u53ef\u89c6\u5316)<\/li>\n<li>Elasticsearch &#043; Logstash &#043; Kibana (\u65e5\u5fd7\u5206\u6790)<\/li>\n<li>Locust (\u8d1f\u8f7d\u6d4b\u8bd5)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u5b89\u88c5\u793a\u4f8b&#xff1a;<\/p>\n<p><span class=\"token comment\"># \u5b89\u88c5Docker\u548cDocker Compose<\/span><br \/>\n<span class=\"token function\">sudo<\/span> <span class=\"token function\">apt-get<\/span> update<br \/>\n<span class=\"token function\">sudo<\/span> <span class=\"token function\">apt-get<\/span> <span class=\"token function\">install<\/span> docker.io <span class=\"token function\">docker-compose<\/span><\/p>\n<p><span class=\"token comment\"># \u514b\u9686\u76d1\u63a7\u6808\u4ed3\u5e93<\/span><br \/>\n<span class=\"token function\">git<\/span> clone https:\/\/github.com\/vegasbrianc\/prometheus-grafana.git<br \/>\n<span class=\"token builtin class-name\">cd<\/span> prometheus-grafana<br \/>\n<span class=\"token function\">docker-compose<\/span> up <span class=\"token parameter variable\">-d<\/span><\/p>\n<h4>5.2 \u6e90\u4ee3\u7801\u8be6\u7ec6\u5b9e\u73b0\u548c\u4ee3\u7801\u89e3\u8bfb<\/h4>\n<h5>5.2.1 \u7efc\u5408\u6027\u80fd\u76d1\u63a7\u7cfb\u7edf<\/h5>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u57fa\u4e8ePython\u7684\u7efc\u5408\u6027\u80fd\u76d1\u63a7\u7cfb\u7edf\u5b9e\u73b0&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> psutil<br \/>\n<span class=\"token keyword\">import<\/span> time<br \/>\n<span class=\"token keyword\">from<\/span> datetime <span class=\"token keyword\">import<\/span> datetime<br \/>\n<span class=\"token keyword\">import<\/span> requests<br \/>\n<span class=\"token keyword\">import<\/span> json<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">PerformanceMonitor<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">def<\/span> <span class=\"token function\">__init__<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">,<\/span> config<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>config <span class=\"token operator\">&#061;<\/span> config<br \/>\n        self<span class=\"token punctuation\">.<\/span>metrics <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token string\">&#039;cpu&#039;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;memory&#039;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;disk&#039;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;network&#039;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>headers <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#039;Content-Type&#039;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#039;application\/json&#039;<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">def<\/span> <span class=\"token function\">collect_metrics<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token triple-quoted-string string\">&#034;&#034;&#034;\u6536\u96c6\u7cfb\u7edf\u6027\u80fd\u6307\u6807&#034;&#034;&#034;<\/span><br \/>\n        timestamp <span class=\"token operator\">&#061;<\/span> datetime<span class=\"token punctuation\">.<\/span>now<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>isoformat<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>        <span class=\"token comment\"># CPU\u6307\u6807<\/span><br \/>\n        cpu_percent <span class=\"token operator\">&#061;<\/span> psutil<span class=\"token punctuation\">.<\/span>cpu_percent<span class=\"token punctuation\">(<\/span>interval<span class=\"token operator\">&#061;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        cpu_times <span class=\"token operator\">&#061;<\/span> psutil<span class=\"token punctuation\">.<\/span>cpu_times_percent<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>metrics<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;cpu&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>append<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token string\">&#039;timestamp&#039;<\/span><span class=\"token punctuation\">:<\/span> timestamp<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;usage&#039;<\/span><span class=\"token punctuation\">:<\/span> cpu_percent<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;user&#039;<\/span><span class=\"token punctuation\">:<\/span> cpu_times<span class=\"token punctuation\">.<\/span>user<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;system&#039;<\/span><span class=\"token punctuation\">:<\/span> cpu_times<span class=\"token punctuation\">.<\/span>system<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;idle&#039;<\/span><span class=\"token punctuation\">:<\/span> cpu_times<span class=\"token punctuation\">.<\/span>idle<br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>        <span class=\"token comment\"># \u5185\u5b58\u6307\u6807<\/span><br \/>\n        mem <span class=\"token operator\">&#061;<\/span> psutil<span class=\"token punctuation\">.<\/span>virtual_memory<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>metrics<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;memory&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>append<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token string\">&#039;timestamp&#039;<\/span><span class=\"token punctuation\">:<\/span> timestamp<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;total&#039;<\/span><span class=\"token punctuation\">:<\/span> mem<span class=\"token punctuation\">.<\/span>total<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;available&#039;<\/span><span class=\"token punctuation\">:<\/span> mem<span class=\"token punctuation\">.<\/span>available<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;percent&#039;<\/span><span class=\"token punctuation\">:<\/span> mem<span class=\"token punctuation\">.<\/span>percent<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;used&#039;<\/span><span class=\"token punctuation\">:<\/span> mem<span class=\"token punctuation\">.<\/span>used<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;free&#039;<\/span><span class=\"token punctuation\">:<\/span> mem<span class=\"token punctuation\">.<\/span>free<br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>        <span class=\"token comment\"># \u78c1\u76d8\u6307\u6807<\/span><br \/>\n        disk <span class=\"token operator\">&#061;<\/span> psutil<span class=\"token punctuation\">.<\/span>disk_usage<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        disk_io <span class=\"token operator\">&#061;<\/span> psutil<span class=\"token punctuation\">.<\/span>disk_io_counters<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>metrics<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;disk&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>append<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token string\">&#039;timestamp&#039;<\/span><span class=\"token punctuation\">:<\/span> timestamp<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;total&#039;<\/span><span class=\"token punctuation\">:<\/span> disk<span class=\"token punctuation\">.<\/span>total<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;used&#039;<\/span><span class=\"token punctuation\">:<\/span> disk<span class=\"token punctuation\">.<\/span>used<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;free&#039;<\/span><span class=\"token punctuation\">:<\/span> disk<span class=\"token punctuation\">.<\/span>free<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;percent&#039;<\/span><span class=\"token punctuation\">:<\/span> disk<span class=\"token punctuation\">.<\/span>percent<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;read_bytes&#039;<\/span><span class=\"token punctuation\">:<\/span> disk_io<span class=\"token punctuation\">.<\/span>read_bytes<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;write_bytes&#039;<\/span><span class=\"token punctuation\">:<\/span> disk_io<span class=\"token punctuation\">.<\/span>write_bytes<br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>        <span class=\"token comment\"># \u7f51\u7edc\u6307\u6807<\/span><br \/>\n        net_io <span class=\"token operator\">&#061;<\/span> psutil<span class=\"token punctuation\">.<\/span>net_io_counters<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>metrics<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;network&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>append<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token string\">&#039;timestamp&#039;<\/span><span class=\"token punctuation\">:<\/span> timestamp<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;bytes_sent&#039;<\/span><span class=\"token punctuation\">:<\/span> net_io<span class=\"token punctuation\">.<\/span>bytes_sent<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;bytes_recv&#039;<\/span><span class=\"token punctuation\">:<\/span> net_io<span class=\"token punctuation\">.<\/span>bytes_recv<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;packets_sent&#039;<\/span><span class=\"token punctuation\">:<\/span> net_io<span class=\"token punctuation\">.<\/span>packets_sent<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;packets_recv&#039;<\/span><span class=\"token punctuation\">:<\/span> net_io<span class=\"token punctuation\">.<\/span>packets_recv<br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">def<\/span> <span class=\"token function\">send_to_backend<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token triple-quoted-string string\">&#034;&#034;&#034;\u5c06\u6307\u6807\u53d1\u9001\u5230\u540e\u7aef\u5b58\u50a8&#034;&#034;&#034;<\/span><br \/>\n        <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            response <span class=\"token operator\">&#061;<\/span> requests<span class=\"token punctuation\">.<\/span>post<span class=\"token punctuation\">(<\/span><br \/>\n                self<span class=\"token punctuation\">.<\/span>config<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;backend_url&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                data<span class=\"token operator\">&#061;<\/span>json<span class=\"token punctuation\">.<\/span>dumps<span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">.<\/span>metrics<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                headers<span class=\"token operator\">&#061;<\/span>self<span class=\"token punctuation\">.<\/span>headers<br \/>\n            <span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> response<span class=\"token punctuation\">.<\/span>status_code <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">200<\/span><span class=\"token punctuation\">:<\/span><br \/>\n                self<span class=\"token punctuation\">.<\/span>metrics <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span>k<span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token keyword\">for<\/span> k <span class=\"token keyword\">in<\/span> self<span class=\"token punctuation\">.<\/span>metrics<span class=\"token punctuation\">}<\/span>  <span class=\"token comment\"># \u6e05\u7a7a\u5df2\u53d1\u9001\u7684\u6570\u636e<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">True<\/span><br \/>\n        <span class=\"token keyword\">except<\/span> Exception <span class=\"token keyword\">as<\/span> e<span class=\"token punctuation\">:<\/span><br \/>\n            <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;Error sending metrics: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">(<\/span>e<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">False<\/span><\/p>\n<p>    <span class=\"token keyword\">def<\/span> <span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token triple-quoted-string string\">&#034;&#034;&#034;\u4e3b\u76d1\u63a7\u5faa\u73af&#034;&#034;&#034;<\/span><br \/>\n        <span class=\"token keyword\">while<\/span> <span class=\"token boolean\">True<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            self<span class=\"token punctuation\">.<\/span>collect_metrics<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token builtin\">len<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">.<\/span>metrics<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;cpu&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;&#061;<\/span> self<span class=\"token punctuation\">.<\/span>config<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;batch_size&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">:<\/span><br \/>\n                self<span class=\"token punctuation\">.<\/span>send_to_backend<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            time<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">.<\/span>config<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;interval_seconds&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u914d\u7f6e\u548c\u542f\u52a8\u76d1\u63a7<\/span><br \/>\nconfig <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token string\">&#039;backend_url&#039;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#039;http:\/\/localhost:8080\/metrics&#039;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token string\">&#039;batch_size&#039;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token string\">&#039;interval_seconds&#039;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token number\">5<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>monitor <span class=\"token operator\">&#061;<\/span> PerformanceMonitor<span class=\"token punctuation\">(<\/span>config<span class=\"token punctuation\">)<\/span><br \/>\nmonitor<span class=\"token punctuation\">.<\/span>run<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h5>5.2.2 \u4ee3\u7801\u89e3\u8bfb<\/h5>\n<li>\n<p>\u6307\u6807\u6536\u96c6&#xff1a;<\/p>\n<ul>\n<li>\u4f7f\u7528psutil\u5e93\u83b7\u53d6\u7cfb\u7edf\u7ea7\u6027\u80fd\u6307\u6807<\/li>\n<li>\u6536\u96c6CPU\u3001\u5185\u5b58\u3001\u78c1\u76d8\u548c\u7f51\u7edc\u56db\u7c7b\u6838\u5fc3\u6307\u6807<\/li>\n<li>\u6bcf\u4e2a\u6307\u6807\u90fd\u5305\u542b\u65f6\u95f4\u6233&#xff0c;\u4fbf\u4e8e\u540e\u7eed\u5206\u6790<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u6570\u636e\u4f20\u8f93&#xff1a;<\/p>\n<ul>\n<li>\u91c7\u7528\u6279\u91cf\u53d1\u9001\u6a21\u5f0f&#xff0c;\u51cf\u5c11\u7f51\u7edc\u5f00\u9500<\/li>\n<li>\u4f7f\u7528HTTP POST\u5c06JSON\u683c\u5f0f\u6570\u636e\u53d1\u9001\u5230\u540e\u7aef<\/li>\n<li>\u5305\u542b\u7b80\u5355\u7684\u9519\u8bef\u5904\u7406\u673a\u5236<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u8fd0\u884c\u63a7\u5236&#xff1a;<\/p>\n<ul>\n<li>\u53ef\u914d\u7f6e\u7684\u91c7\u96c6\u95f4\u9694\u548c\u6279\u91cf\u5927\u5c0f<\/li>\n<li>\u6301\u7eed\u8fd0\u884c\u7684\u4e3b\u5faa\u73af<\/li>\n<\/ul>\n<\/li>\n<h4>5.3 \u4ee3\u7801\u89e3\u8bfb\u4e0e\u5206\u6790<\/h4>\n<h5>5.3.1 \u8bbe\u8ba1\u4f18\u70b9<\/h5>\n<li>\n<p>\u6a21\u5757\u5316\u8bbe\u8ba1&#xff1a;<\/p>\n<ul>\n<li>\u5404\u6307\u6807\u91c7\u96c6\u903b\u8f91\u72ec\u7acb&#xff0c;\u4fbf\u4e8e\u6269\u5c55\u65b0\u7684\u6307\u6807\u7c7b\u578b<\/li>\n<li>\u53d1\u9001\u903b\u8f91\u4e0e\u91c7\u96c6\u903b\u8f91\u5206\u79bb&#xff0c;\u7b26\u5408\u5355\u4e00\u804c\u8d23\u539f\u5219<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u6027\u80fd\u8003\u8651&#xff1a;<\/p>\n<ul>\n<li>\u6279\u91cf\u53d1\u9001\u51cf\u5c11\u7f51\u7edc\u8bf7\u6c42\u6b21\u6570<\/li>\n<li>\u53ef\u914d\u7f6e\u7684\u91c7\u96c6\u95f4\u9694\u9002\u5e94\u4e0d\u540c\u573a\u666f\u9700\u6c42<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u53ef\u6269\u5c55\u6027&#xff1a;<\/p>\n<ul>\n<li>\u5bb9\u6613\u96c6\u6210\u65b0\u7684\u6570\u636e\u6e90(\u5982\u5e94\u7528\u7a0b\u5e8f\u7279\u5b9a\u6307\u6807)<\/li>\n<li>\u540e\u7aef\u5b58\u50a8\u53ef\u66ff\u6362\u4e3a\u5404\u79cd\u65f6\u95f4\u5e8f\u5217\u6570\u636e\u5e93<\/li>\n<\/ul>\n<\/li>\n<h5>5.3.2 \u6539\u8fdb\u65b9\u5411<\/h5>\n<li>\n<p>\u6570\u636e\u6301\u4e45\u5316&#xff1a;<\/p>\n<ul>\n<li>\u6dfb\u52a0\u672c\u5730\u7f13\u5b58&#xff0c;\u9632\u6b62\u7f51\u7edc\u4e2d\u65ad\u65f6\u6570\u636e\u4e22\u5931<\/li>\n<li>\u5b9e\u73b0\u65ad\u70b9\u7eed\u4f20\u673a\u5236<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u9ad8\u7ea7\u529f\u80fd&#xff1a;<\/p>\n<ul>\n<li>\u6dfb\u52a0\u5b9e\u65f6\u5206\u6790\u529f\u80fd(\u5982\u5f02\u5e38\u68c0\u6d4b)<\/li>\n<li>\u652f\u6301\u52a8\u6001\u914d\u7f6e\u66f4\u65b0<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u8d44\u6e90\u63a7\u5236&#xff1a;<\/p>\n<ul>\n<li>\u6dfb\u52a0\u5185\u5b58\u4f7f\u7528\u9650\u5236&#xff0c;\u9632\u6b62\u76d1\u63a7\u7a0b\u5e8f\u81ea\u8eab\u6d88\u8017\u8fc7\u591a\u8d44\u6e90<\/li>\n<li>\u5b9e\u73b0\u81ea\u9002\u5e94\u91c7\u6837\u7387&#xff0c;\u5728\u9ad8\u8d1f\u8f7d\u65f6\u964d\u4f4e\u91c7\u96c6\u9891\u7387<\/li>\n<\/ul>\n<\/li>\n<h3>6. \u5b9e\u9645\u5e94\u7528\u573a\u666f<\/h3>\n<h4>6.1 \u7535\u5b50\u5546\u52a1\u7f51\u7ad9\u5927\u4fc3\u671f\u95f4<\/h4>\n<p>\u6311\u6218&#xff1a;<\/p>\n<ul>\n<li>\u77ed\u65f6\u95f4\u5185\u6d41\u91cf\u6fc0\u589e10\u500d\u4ee5\u4e0a<\/li>\n<li>\u5fc5\u987b\u4fdd\u8bc199.95%\u7684\u53ef\u7528\u6027<\/li>\n<li>\u8ba2\u5355\u5904\u7406\u5ef6\u8fdf\u4e0d\u80fd\u8d85\u8fc72\u79d2<\/li>\n<\/ul>\n<p>\u76d1\u63a7\u65b9\u6848&#xff1a;<\/p>\n<li>\n<p>\u57fa\u7840\u8bbe\u65bd\u5c42&#xff1a;<\/p>\n<ul>\n<li>\u5b9e\u65f6\u76d1\u63a7\u6240\u6709\u670d\u52a1\u5668\u7684CPU\u3001\u5185\u5b58\u3001\u78c1\u76d8I\/O<\/li>\n<li>\u8bbe\u7f6e\u81ea\u52a8\u6269\u5bb9\u9608\u503c(\u5982CPU&gt;70%\u6301\u7eed5\u5206\u949f)<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5e94\u7528\u5c42&#xff1a;<\/p>\n<ul>\n<li>\u76d1\u63a7\u5173\u952eAPI\u7684\u54cd\u5e94\u65f6\u95f4(P99 &lt; 1.5\u79d2)<\/li>\n<li>\u8ddf\u8e2a\u8ba2\u5355\u521b\u5efa\u6210\u529f\u7387(&gt;99.9%)<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u6570\u636e\u5e93\u5c42&#xff1a;<\/p>\n<ul>\n<li>\u76d1\u63a7\u67e5\u8be2\u5ef6\u8fdf\u548c\u6d3b\u8dc3\u8fde\u63a5\u6570<\/li>\n<li>\u8bbe\u7f6e\u6162\u67e5\u8be2\u544a\u8b66(&gt;500ms)<\/li>\n<\/ul>\n<\/li>\n<p>\u6548\u679c&#xff1a;<\/p>\n<ul>\n<li>\u63d0\u524d2\u5c0f\u65f6\u9884\u6d4b\u5230\u9700\u8981\u6269\u5bb9&#xff0c;\u907f\u514d\u4e86\u670d\u52a1\u964d\u7ea7<\/li>\n<li>\u53ca\u65f6\u53d1\u73b0\u5e76\u4fee\u590d\u4e86\u4e00\u4e2a\u6570\u636e\u5e93\u70ed\u70b9\u95ee\u9898<\/li>\n<li>\u5927\u4fc3\u671f\u95f4\u96f6\u91cd\u5927\u4e8b\u6545&#xff0c;\u8ba2\u5355\u5904\u7406\u5ef6\u8fdf\u7a33\u5b9a\u57281.2\u79d2\u4ee5\u5185<\/li>\n<\/ul>\n<h4>6.2 \u91d1\u878d\u4ea4\u6613\u7cfb\u7edf<\/h4>\n<p>\u6311\u6218&#xff1a;<\/p>\n<ul>\n<li>\u6beb\u79d2\u7ea7\u5ef6\u8fdf\u8981\u6c42<\/li>\n<li>\u4e25\u683c\u7684\u6570\u636e\u4e00\u81f4\u6027<\/li>\n<li>\u6781\u9ad8\u7684\u53ef\u7528\u6027\u6807\u51c6(99.99%)<\/li>\n<\/ul>\n<p>\u76d1\u63a7\u65b9\u6848&#xff1a;<\/p>\n<li>\n<p>\u8d85\u4f4e\u5ef6\u8fdf\u76d1\u63a7&#xff1a;<\/p>\n<ul>\n<li>\u4f7f\u7528eBPF\u6280\u672f\u8fdb\u884c\u5185\u6838\u7ea7\u76d1\u63a7<\/li>\n<li>\u7eb3\u79d2\u7ea7\u7cbe\u5ea6\u7684\u6027\u80fd\u6570\u636e\u91c7\u96c6<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5168\u94fe\u8def\u8ffd\u8e2a&#xff1a;<\/p>\n<ul>\n<li>\u6bcf\u4e2a\u4ea4\u6613\u8bf7\u6c42\u7684\u5b8c\u6574\u8def\u5f84\u8ffd\u8e2a<\/li>\n<li>\u7cbe\u786e\u6d4b\u91cf\u5404\u7ec4\u4ef6\u5904\u7406\u65f6\u95f4<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5f02\u5e38\u68c0\u6d4b&#xff1a;<\/p>\n<ul>\n<li>\u57fa\u4e8e\u673a\u5668\u5b66\u4e60\u7684\u5f02\u5e38\u6a21\u5f0f\u8bc6\u522b<\/li>\n<li>\u4e9a\u6beb\u79d2\u7ea7\u7684\u5f02\u5e38\u54cd\u5e94\u544a\u8b66<\/li>\n<\/ul>\n<\/li>\n<p>\u6548\u679c&#xff1a;<\/p>\n<ul>\n<li>\u5c06\u5e73\u5747\u4ea4\u6613\u5ef6\u8fdf\u4ece3.2ms\u964d\u4f4e\u52301.8ms<\/li>\n<li>\u63d0\u524d15\u5206\u949f\u9884\u6d4b\u5230\u4e00\u6b21\u7f51\u7edc\u5206\u533a\u98ce\u9669<\/li>\n<li>\u7cfb\u7edf\u53ef\u7528\u6027\u8fbe\u523099.992%<\/li>\n<\/ul>\n<h3>7. \u5de5\u5177\u548c\u8d44\u6e90\u63a8\u8350<\/h3>\n<h4>7.1 \u5b66\u4e60\u8d44\u6e90\u63a8\u8350<\/h4>\n<h5>7.1.1 \u4e66\u7c4d\u63a8\u8350<\/h5>\n<ul>\n<li>\u300aSystems Performance: Enterprise and the Cloud\u300b Brendan Gregg<\/li>\n<li>\u300aSite Reliability Engineering\u300b Google SRE\u56e2\u961f<\/li>\n<li>\u300aThe Art of Monitoring\u300b James Turnbull<\/li>\n<\/ul>\n<h5>7.1.2 \u5728\u7ebf\u8bfe\u7a0b<\/h5>\n<ul>\n<li>Coursera: \u201cMonitoring and Observability for Cloud Native Systems\u201d<\/li>\n<li>Linux Foundation: \u201cPerformance Analysis and Tuning\u201d<\/li>\n<li>Pluralsight: \u201cSystems Monitoring with Prometheus and Grafana\u201d<\/li>\n<\/ul>\n<h5>7.1.3 \u6280\u672f\u535a\u5ba2\u548c\u7f51\u7ad9<\/h5>\n<ul>\n<li>Brendan Gregg\u2019s Blog (\u6027\u80fd\u5206\u6790\u6743\u5a01)<\/li>\n<li>Google SRE Blog<\/li>\n<li>Prometheus\u5b98\u65b9\u6587\u6863<\/li>\n<li>Grafana Labs\u535a\u5ba2<\/li>\n<\/ul>\n<h4>7.2 \u5f00\u53d1\u5de5\u5177\u6846\u67b6\u63a8\u8350<\/h4>\n<h5>7.2.1 IDE\u548c\u7f16\u8f91\u5668<\/h5>\n<ul>\n<li>VS Code &#043; Python\u63d2\u4ef6<\/li>\n<li>PyCharm Professional (\u652f\u6301\u8fdc\u7a0b\u8c03\u8bd5)<\/li>\n<li>Jupyter Notebook (\u7528\u4e8e\u6570\u636e\u5206\u6790)<\/li>\n<\/ul>\n<h5>7.2.2 \u8c03\u8bd5\u548c\u6027\u80fd\u5206\u6790\u5de5\u5177<\/h5>\n<ul>\n<li>perf (Linux\u6027\u80fd\u5206\u6790\u5de5\u5177)<\/li>\n<li>strace\/dtrace (\u7cfb\u7edf\u8c03\u7528\u8ddf\u8e2a)<\/li>\n<li>Wireshark (\u7f51\u7edc\u5206\u6790)<\/li>\n<li>BPF Compiler Collection (BCC)<\/li>\n<\/ul>\n<h5>7.2.3 \u76f8\u5173\u6846\u67b6\u548c\u5e93<\/h5>\n<ul>\n<li>Prometheus Client Libraries (\u591a\u79cd\u8bed\u8a00\u652f\u6301)<\/li>\n<li>OpenTelemetry (\u9065\u6d4b\u6570\u636e\u6807\u51c6)<\/li>\n<li>Grafana (\u53ef\u89c6\u5316)<\/li>\n<li>ELK Stack (\u65e5\u5fd7\u5206\u6790)<\/li>\n<\/ul>\n<h4>7.3 \u76f8\u5173\u8bba\u6587\u8457\u4f5c\u63a8\u8350<\/h4>\n<h5>7.3.1 \u7ecf\u5178\u8bba\u6587<\/h5>\n<ul>\n<li>\u201cThe Google File System\u201d (SOSP 2003)<\/li>\n<li>\u201cDapper, a Large-Scale Distributed Systems Tracing Infrastructure\u201d (Google)<\/li>\n<li>\u201cThe Four Golden Signals of Monitoring\u201d (Google SRE)<\/li>\n<\/ul>\n<h5>7.3.2 \u6700\u65b0\u7814\u7a76\u6210\u679c<\/h5>\n<ul>\n<li>\u201ceBPF for Performance Analysis\u201d (Brendan Gregg)<\/li>\n<li>\u201cAIOps: Real-World Challenges and Research Innovations\u201d (IEEE 2021)<\/li>\n<li>\u201cAdaptive Monitoring for Cloud-Native Applications\u201d (ACM 2022)<\/li>\n<\/ul>\n<h5>7.3.3 \u5e94\u7528\u6848\u4f8b\u5206\u6790<\/h5>\n<ul>\n<li>Netflix: \u201cPerformance Monitoring at Scale\u201d<\/li>\n<li>Twitter: \u201cObservability at Twitter\u201d<\/li>\n<li>Uber: \u201cMonitoring a Global Infrastructure\u201d<\/li>\n<\/ul>\n<h3>8. \u603b\u7ed3&#xff1a;\u672a\u6765\u53d1\u5c55\u8d8b\u52bf\u4e0e\u6311\u6218<\/h3>\n<h4>8.1 \u53d1\u5c55\u8d8b\u52bf<\/h4>\n<li>\n<p>AI\u9a71\u52a8\u7684\u6027\u80fd\u76d1\u63a7&#xff1a;<\/p>\n<ul>\n<li>\u57fa\u4e8e\u673a\u5668\u5b66\u4e60\u7684\u5f02\u5e38\u68c0\u6d4b<\/li>\n<li>\u81ea\u52a8\u6839\u56e0\u5206\u6790<\/li>\n<li>\u9884\u6d4b\u6027\u5bb9\u91cf\u89c4\u5212<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u4e91\u539f\u751f\u76d1\u63a7&#xff1a;<\/p>\n<ul>\n<li>\u670d\u52a1\u7f51\u683c\u96c6\u6210<\/li>\n<li>\u65e0\u670d\u52a1\u5668\u67b6\u6784\u76d1\u63a7<\/li>\n<li>\u6df7\u5408\u4e91\u7edf\u4e00\u76d1\u63a7<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u53ef\u89c2\u6d4b\u6027\u6f14\u8fdb&#xff1a;<\/p>\n<ul>\n<li>\u6307\u6807(Metrics)\u3001\u65e5\u5fd7(Logs)\u3001\u8ffd\u8e2a(Traces)\u7684\u6df1\u5ea6\u6574\u5408<\/li>\n<li>\u6301\u7eed\u5256\u6790(Continuous Profiling)<\/li>\n<li>\u7528\u6237\u4f53\u9a8c\u76d1\u63a7<\/li>\n<\/ul>\n<\/li>\n<h4>8.2 \u6280\u672f\u6311\u6218<\/h4>\n<li>\n<p>\u6570\u636e\u91cf\u7206\u70b8&#xff1a;<\/p>\n<ul>\n<li>\u6d77\u91cf\u76d1\u63a7\u6570\u636e\u7684\u5b58\u50a8\u548c\u5904\u7406<\/li>\n<li>\u5b9e\u65f6\u5206\u6790\u4e0e\u5386\u53f2\u5206\u6790\u7684\u5e73\u8861<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u76d1\u63a7\u7cfb\u7edf\u7684\u76d1\u63a7&#xff1a;<\/p>\n<ul>\n<li>\u76d1\u63a7\u7cfb\u7edf\u81ea\u8eab\u7684\u53ef\u89c2\u6d4b\u6027<\/li>\n<li>\u907f\u514d\u76d1\u63a7\u5f15\u8d77\u7684\u6027\u80fd\u4e0b\u964d<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5b89\u5168\u4e0e\u9690\u79c1&#xff1a;<\/p>\n<ul>\n<li>\u654f\u611f\u6027\u80fd\u6570\u636e\u7684\u5b89\u5168\u4fdd\u62a4<\/li>\n<li>\u5408\u89c4\u6027\u8981\u6c42(\u5982GDPR)<\/li>\n<\/ul>\n<\/li>\n<h4>8.3 \u5e94\u5bf9\u7b56\u7565<\/h4>\n<li>\n<p>\u667a\u80fd\u91c7\u6837&#xff1a;<\/p>\n<ul>\n<li>\u81ea\u9002\u5e94\u6570\u636e\u91c7\u96c6\u9891\u7387<\/li>\n<li>\u57fa\u4e8e\u91cd\u8981\u6027\u7684\u6570\u636e\u4fdd\u7559\u7b56\u7565<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u8fb9\u7f18\u8ba1\u7b97&#xff1a;<\/p>\n<ul>\n<li>\u5728\u6570\u636e\u6e90\u5934\u8fdb\u884c\u9884\u5904\u7406<\/li>\n<li>\u5206\u5e03\u5f0f\u5206\u6790\u67b6\u6784<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u6807\u51c6\u5316&#xff1a;<\/p>\n<ul>\n<li>\u91c7\u7528OpenTelemetry\u7b49\u5f00\u653e\u6807\u51c6<\/li>\n<li>\u7edf\u4e00\u6570\u636e\u6a21\u578b\u548c\u63a5\u53e3<\/li>\n<\/ul>\n<\/li>\n<h3>9. \u9644\u5f55&#xff1a;\u5e38\u89c1\u95ee\u9898\u4e0e\u89e3\u7b54<\/h3>\n<h4>Q1: \u5982\u4f55\u786e\u5b9a\u5408\u9002\u7684\u76d1\u63a7\u9891\u7387&#xff1f;<\/h4>\n<p>A: \u76d1\u63a7\u9891\u7387\u53d6\u51b3\u4e8e:<\/p>\n<li>\u7cfb\u7edf\u53d8\u5316\u901f\u5ea6(\u5982\u9ad8\u9891\u4ea4\u6613\u9700\u8981\u79d2\u7ea7\u76d1\u63a7)<\/li>\n<li>\u95ee\u9898\u68c0\u6d4b\u7684\u53ca\u65f6\u6027\u8981\u6c42<\/li>\n<li>\u76d1\u63a7\u7cfb\u7edf\u81ea\u8eab\u7684\u5f00\u9500 \u4e00\u822c\u5efa\u8bae\u4ece1\u5206\u949f\u95f4\u9694\u5f00\u59cb&#xff0c;\u6839\u636e\u9700\u6c42\u8c03\u6574\u3002\u5173\u952e\u7cfb\u7edf\u53ef\u63d0\u9ad8\u5230\u79d2\u7ea7\u3002<\/li>\n<h4>Q2: \u76d1\u63a7\u6570\u636e\u5e94\u8be5\u4fdd\u7559\u591a\u4e45&#xff1f;<\/h4>\n<p>A: \u6570\u636e\u4fdd\u7559\u7b56\u7565\u5e94\u8003\u8651:<\/p>\n<ul>\n<li>\u95ee\u9898\u6392\u67e5\u9700\u6c42(\u901a\u5e38\u9700\u898130-90\u5929\u5386\u53f2\u6570\u636e)<\/li>\n<li>\u5bb9\u91cf\u89c4\u5212\u9700\u6c42(\u53ef\u80fd\u9700\u89811\u5e74\u4ee5\u4e0a\u6570\u636e)<\/li>\n<li>\u5b58\u50a8\u6210\u672c \u63a8\u8350\u5206\u5c42\u5b58\u50a8: \u70ed\u6570\u636e(7\u5929)\u4fdd\u7559\u5728\u9ad8\u6027\u80fd\u5b58\u50a8&#xff0c;\u6e29\u6570\u636e(30\u5929)\u5728\u6807\u51c6\u5b58\u50a8&#xff0c;\u51b7\u6570\u636e(1\u5e74&#043;)\u5728\u5ec9\u4ef7\u5b58\u50a8\u3002<\/li>\n<\/ul>\n<h4>Q3: \u5982\u4f55\u907f\u514d\u76d1\u63a7\u7cfb\u7edf\u672c\u8eab\u6210\u4e3a\u6027\u80fd\u74f6\u9888&#xff1f;<\/h4>\n<p>A: \u53ef\u91c7\u53d6\u4ee5\u4e0b\u63aa\u65bd:<\/p>\n<li>\u9650\u5236\u6570\u636e\u91c7\u96c6\u9891\u7387\u548c\u7cbe\u5ea6<\/li>\n<li>\u4f7f\u7528\u9ad8\u6548\u7684\u4f20\u8f93\u534f\u8bae\u548c\u538b\u7f29<\/li>\n<li>\u5728\u76d1\u63a7\u4ee3\u7406\u4e2d\u5b9e\u73b0\u6570\u636e\u805a\u5408<\/li>\n<li>\u5206\u5e03\u5f0f\u90e8\u7f72\u76d1\u63a7\u7ec4\u4ef6<\/li>\n<li>\u5b9a\u671f\u8bc4\u4f30\u76d1\u63a7\u7cfb\u7edf\u7684\u8d44\u6e90\u6d88\u8017<\/li>\n<h4>Q4: \u5982\u4f55\u9009\u62e9\u5408\u9002\u7684\u76d1\u63a7\u5de5\u5177&#xff1f;<\/h4>\n<p>A: \u9009\u62e9\u65f6\u8003\u8651:<\/p>\n<li>\u7cfb\u7edf\u67b6\u6784(\u4f20\u7edf\/\u4e91\u539f\u751f)<\/li>\n<li>\u76d1\u63a7\u7ef4\u5ea6\u9700\u6c42(\u6307\u6807\/\u65e5\u5fd7\/\u8ffd\u8e2a)<\/li>\n<li>\u56e2\u961f\u6280\u672f\u6808<\/li>\n<li>\u6269\u5c55\u6027\u548c\u96c6\u6210\u80fd\u529b<\/li>\n<li>\u793e\u533a\u652f\u6301\u548c\u5546\u4e1a\u9009\u9879 \u5efa\u8bae\u4ece\u7b80\u5355\u65b9\u6848\u5f00\u59cb&#xff0c;\u9010\u6b65\u6269\u5c55&#xff0c;\u907f\u514d\u8fc7\u5ea6\u590d\u6742\u5316\u3002<\/li>\n<h3>10. \u6269\u5c55\u9605\u8bfb &amp; \u53c2\u8003\u8d44\u6599<\/h3>\n<li>Google SRE Handbook: https:\/\/sre.google\/sre-book\/<\/li>\n<li>Prometheus Documentation: https:\/\/prometheus.io\/docs\/<\/li>\n<li>Brendan Gregg\u2019s Performance Tools: http:\/\/www.brendangregg.com\/linuxperf.html<\/li>\n<li>CNCF Observability Whitepaper: https:\/\/github.com\/cncf\/tag-observability<\/li>\n<li>Distributed Systems Observability: 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