{"id":3341,"date":"2026-10-28T14:00:00","date_gmt":"2026-10-28T06:00:00","guid":{"rendered":"https:\/\/www.ygcloud.com\/knowledge\/?p=3341"},"modified":"2026-10-28T15:35:48","modified_gmt":"2026-10-28T07:35:48","slug":"cloud-server-cpu-100-troubleshooting","status":"publish","type":"post","link":"https:\/\/www.ygcloud.com\/knowledge\/3341\/","title":{"rendered":"\u4e91\u670d\u52a1\u5668 CPU 100% \u6392\u67e5\uff1a7 \u6b65\u5b9a\u4f4d\u5230\u6162\u67e5\u8be2"},"content":{"rendered":"<p>\u5148\u8bf4\u7ed3\u8bba\uff1aCPU 100% \u53ea\u662f\u75c7\u72b6\uff0c\u5148\u5206\u6e05\u662f\u7528\u6237\u6001\u7b97\u5f97\u592a\u591a\u3001\u7cfb\u7edf\u6001\u5728\u5fd9\u3001IO \u7b49\u5f85\uff0c\u8fd8\u662f\u88ab\u5bbf\u4e3b\u673a\u5077\u8d70\u4e86\uff08steal\uff09\u3002\u518d\u770b\u662f\u54ea\u4e2a\u8fdb\u7a0b\u3001\u54ea\u4e2a\u7ebf\u7a0b\u3001\u54ea\u6761 SQL \u6216\u54ea\u4e2a\u5916\u90e8\u4f9d\u8d56\uff0c\u6700\u540e\u624d\u51b3\u5b9a\u9650\u6d41\u3001\u964d\u7ea7\u3001\u6269\u5bb9\u8fd8\u662f\u4fee\u4ee3\u7801\u3002\u4e0a\u6765\u5c31\u91cd\u542f\uff0c\u901a\u5e38\u53ea\u80fd\u597d\u5341\u5206\u949f\u3002<\/p>\n<p>\u5148\u770b\u56db\u4e2a\u6570\uff0c\u522b\u6025\u7740\u7ffb\u65e5\u5fd7\uff1a<\/p>\n<ul>\n<li><strong>us<\/strong>\uff1a\u7528\u6237\u6001\u5360\u7528\uff0c\u4e1a\u52a1\u4ee3\u7801\u3001PHP\u3001Java\u3001Python \u5728\u7b97<\/li>\n<li><strong>sy<\/strong>\uff1a\u7cfb\u7edf\u6001\u5360\u7528\uff0c\u9891\u7e41\u7cfb\u7edf\u8c03\u7528\u3001\u7f51\u7edc\u5305\u3001\u4e0a\u4e0b\u6587\u5207\u6362<\/li>\n<li><strong>wa<\/strong>\uff1aIO \u7b49\u5f85\uff0c\u78c1\u76d8\u6216\u7f51\u7edc\u5b58\u50a8\u6162<\/li>\n<li><strong>st<\/strong>\uff1asteal\uff0c\u5bbf\u4e3b\u673a\u628a CPU \u5206\u7ed9\u4e86\u522b\u4eba\uff0c\u865a\u62df\u673a\u5728\u6392\u961f<\/li>\n<\/ul>\n<p>\u56db\u4e2a\u6570\u7684\u7ec4\u5408\uff0c\u57fa\u672c\u80fd\u5224\u65ad\u65b9\u5411\u3002\u4e0b\u9762\u6309\u201c\u5b9a\u4f4d\u8fdb\u7a0b \u2192 \u5b9a\u4f4d\u7ebf\u7a0b \u2192 \u770b\u4e1a\u52a1 \u2192 \u5e94\u6025 \u2192 \u957f\u671f\u4f18\u5316\u201d\u8bb2\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img width=\"1280\" height=\"720\" src=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/974734e89ba45d5.jpg\" alt=\"\u8fdb\u7a0b\u6811\u4e2d\u4e00\u4e2a\u7ea2\u8272\u9ad8\u8d1f\u8f7d\u8fdb\u7a0b\u8282\u70b9\" class=\"wp-image-3338\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/974734e89ba45d5.jpg 1280w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/974734e89ba45d5-300x169.jpg 300w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/974734e89ba45d5-1024x576.jpg 1024w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/974734e89ba45d5-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption>\u5148\u627e\u8fdb\u7a0b\uff0c\u518d\u770b\u7ebf\u7a0b\u6808\uff1b\u964c\u751f\u8fdb\u7a0b\u8981\u6309\u5165\u4fb5\u6392\u67e5\u5904\u7406\u3002<\/figcaption><\/figure>\n<h2 id=\"\u7b2c\u4e00\u6b65\u770b\u6574\u4f53\">\u7b2c\u4e00\u6b65\uff1a\u770b\u6574\u4f53<\/h2>\n<pre><code>top\n# \u770b %Cpu(s) \u884c\u7684 us\/sy\/wa\/st\nuptime\n# load average \u548c CPU \u6838\u6570\u5bf9\u6bd4\nvmstat 1 5\n# r \u5217\uff08\u8fd0\u884c\u961f\u5217\uff09\u3001wa\u3001st<\/code><\/pre>\n<p>load average \u9ad8\u4e8e\u6838\u6570\u4e0d\u4e00\u5b9a\u6709\u95ee\u9898\uff0c\u8981\u770b r \u961f\u5217\u548c wa\u3002\u5982\u679c wa \u9ad8\uff0cCPU \u5176\u5b9e\u5728\u7b49\u78c1\u76d8\uff1b\u5982\u679c st \u9ad8\uff0c\u8bf4\u660e\u90bb\u5c45\u5728\u62a2\uff0c\u5148\u627e\u670d\u52a1\u5546\uff0c\u4e0d\u662f\u4f60\u4ee3\u7801\u7684\u95ee\u9898\u3002<\/p>\n<h2 id=\"\u7b2c\u4e8c\u6b65\u627e\u8fdb\u7a0b\">\u7b2c\u4e8c\u6b65\uff1a\u627e\u8fdb\u7a0b<\/h2>\n<pre><code>ps aux --sort=-%cpu | head -20\npidstat -u 1 5\n# \u770b\u662f\u54ea\u4e2a\u8fdb\u7a0b\u6301\u7eed\u5403 CPU<\/code><\/pre>\n<p>\u627e\u5230\u8fdb\u7a0b\u540e\uff0c\u5148\u786e\u8ba4\u5b83\u662f\u4e0d\u662f\u4f60\u8ba4\u8bc6\u7684\uff1a\u8def\u5f84\u3001\u542f\u52a8\u53c2\u6570\u3001\u542f\u52a8\u7528\u6237\u3001\u6700\u8fd1\u6709\u6ca1\u6709\u53d1\u5e03\u3002\u964c\u751f\u8fdb\u7a0b\u3001\u8def\u5f84\u5728 <code>\/tmp<\/code> \u6216 <code>\/dev\/shm<\/code>\u3001\u540d\u5b57\u4f2a\u88c5\u6210\u7cfb\u7edf\u8fdb\u7a0b\uff0c\u8981\u6309\u5165\u4fb5\u6392\u67e5\u5904\u7406\u3002<\/p>\n<h2 id=\"\u7b2c\u4e09\u6b65\u770b\u7ebf\u7a0b\u548c\u8c03\u7528\u6808\">\u7b2c\u4e09\u6b65\uff1a\u770b\u7ebf\u7a0b\u548c\u8c03\u7528\u6808<\/h2>\n<pre><code>top -H -p &lt;pid&gt;\n# \u627e\u5230\u6700\u70ed\u7684\u7ebf\u7a0b ID\uff0c\u8f6c\u6210\u5341\u516d\u8fdb\u5236\nprintf '%x\\n' &lt;tid&gt;\n\n# Java\njstack &lt;pid&gt; &gt; \/tmp\/threads.txt\n# PHP-FPM \u770b slow log \u548c status\n# Node \u770b event loop lag \u548c CPU profile\n# \u901a\u7528\nperf top -p &lt;pid&gt;<\/code><\/pre>\n<p>Java \u7ebf\u7a0b\u6808\u91cc\u5927\u91cf\u7ebf\u7a0b\u5361\u5728\u540c\u4e00\u6bb5\u4ee3\u7801\uff0c\u901a\u5e38\u662f\u6b7b\u5faa\u73af\u3001\u9501\u7ade\u4e89\u6216\u6b63\u5219\u56de\u6eaf\uff1bPHP-FPM \u770b slow log \u91cc\u53cd\u590d\u51fa\u73b0\u7684\u811a\u672c\uff1bNode \u5355\u7ebf\u7a0b\u88ab\u540c\u6b65\u8ba1\u7b97\u963b\u585e\uff0cevent loop lag \u4f1a\u98d9\u5347\u3002<\/p>\n<h2 id=\"\u7b2c\u56db\u6b65\u533a\u5206\u6b63\u5e38\u9ad8\u5cf0\u548c\u5f02\u5e38\">\u7b2c\u56db\u6b65\uff1a\u533a\u5206\u6b63\u5e38\u9ad8\u5cf0\u548c\u5f02\u5e38<\/h2>\n<ul>\n<li><strong>QPS \u662f\u5426\u540c\u6b65\u4e0a\u6da8<\/strong>\uff1a\u6da8\u4e86\u4e14\u54cd\u5e94\u6b63\u5e38\uff0c\u662f\u5bb9\u91cf\u95ee\u9898\uff1b\u6ca1\u6da8\u4f46 CPU \u9ad8\uff0c\u662f\u4ee3\u7801\u6216\u4f9d\u8d56\u95ee\u9898<\/li>\n<li><strong>\u6162\u67e5\u8be2\u662f\u5426\u589e\u52a0<\/strong>\uff1a\u6570\u636e\u5e93\u6162\u4f1a\u62d6\u9ad8\u5e94\u7528 CPU\uff08\u91cd\u8bd5\u3001\u5e8f\u5217\u5316\u3001\u65e5\u5fd7\uff09<\/li>\n<li><strong>\u5916\u90e8 API \u662f\u5426\u53d8\u6162<\/strong>\uff1a\u8d85\u65f6\u91cd\u8bd5\u4f1a\u653e\u5927 CPU \u548c\u8fde\u63a5\u6570<\/li>\n<li><strong>\u7f13\u5b58\u662f\u5426\u5931\u6548<\/strong>\uff1a\u7f13\u5b58\u51fb\u7a7f\u4f1a\u8ba9\u8bf7\u6c42\u5168\u90e8\u843d\u5230\u6570\u636e\u5e93\u548c\u5e94\u7528<\/li>\n<\/ul>\n<pre><code># MySQL\nSHOW FULL PROCESSLIST;\nSHOW ENGINE INNODB STATUS;\n# Redis\nSLOWLOG GET 20<\/code><\/pre>\n<figure class=\"wp-block-image size-full\"><img width=\"1280\" height=\"720\" src=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/3fed4e303655b7a.jpg\" alt=\"\u4e00\u6761\u53d1\u5149\u7684\u6570\u636e\u5e93\u67e5\u8be2\u5361\u5728\u961f\u5217\u4e2d\" class=\"wp-image-3339\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/3fed4e303655b7a.jpg 1280w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/3fed4e303655b7a-300x169.jpg 300w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/3fed4e303655b7a-1024x576.jpg 1024w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/3fed4e303655b7a-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption>CPU \u9ad8\u4e0d\u4e00\u5b9a\u662f\u7b97\u5f97\u591a\uff0c\u4e5f\u53ef\u80fd\u662f\u5728\u7b49\u6162\u67e5\u8be2\u548c\u91cd\u8bd5\u3002<\/figcaption><\/figure>\n<h2 id=\"\u7b2c\u4e94\u6b65\u5e38\u89c1\u539f\u56e0\">\u7b2c\u4e94\u6b65\uff1a\u5e38\u89c1\u539f\u56e0<\/h2>\n<ol>\n<li><strong>\u6b7b\u5faa\u73af\/\u6b63\u5219\u56de\u6eaf<\/strong>\uff1a\u67d0\u4e2a\u8f93\u5165\u89e6\u53d1\uff0cCPU \u5355\u6838\u8dd1\u6ee1<\/li>\n<li><strong>\u6162 SQL<\/strong>\uff1a\u6ca1\u7d22\u5f15\u3001\u5168\u8868\u626b\u63cf\u3001\u6392\u5e8f\u4e34\u65f6\u8868<\/li>\n<li><strong>\u7f13\u5b58\u51fb\u7a7f<\/strong>\uff1a\u70ed\u70b9 key \u8fc7\u671f\uff0c\u8bf7\u6c42\u5168\u6253\u5230\u6570\u636e\u5e93<\/li>\n<li><strong>\u5916\u90e8\u4f9d\u8d56\u91cd\u8bd5<\/strong>\uff1a\u8d85\u65f6\u540e\u65e0\u9650\u91cd\u8bd5\uff0c\u96ea\u5d29<\/li>\n<li><strong>\u5b9a\u65f6\u4efb\u52a1\/\u5907\u4efd<\/strong>\uff1a\u538b\u7f29\u3001\u5bfc\u51fa\u3001\u5168\u91cf\u540c\u6b65\u5728\u9ad8\u5cf0\u671f\u8dd1<\/li>\n<li><strong>\u6316\u77ff\/\u6076\u610f\u811a\u672c<\/strong>\uff1a\u964c\u751f\u8fdb\u7a0b\u6301\u7eed\u5403\u6ee1\uff0c\u4f34\u968f\u5f02\u5e38\u5916\u8054<\/li>\n<li><strong>\u8d85\u552e\/\u90bb\u5c45<\/strong>\uff1asteal \u9ad8\uff0c\u673a\u5668\u672c\u8eab\u6ca1\u95ee\u9898<\/li>\n<\/ol>\n<h2 id=\"\u7b2c\u516d\u6b65\u5e94\u6025\u5904\u7406\">\u7b2c\u516d\u6b65\uff1a\u5e94\u6025\u5904\u7406<\/h2>\n<ol>\n<li>\u5148\u9650\u6d41\u6216\u964d\u7ea7\u975e\u6838\u5fc3\u63a5\u53e3\uff0c\u4fdd\u4f4f\u6838\u5fc3\u94fe\u8def<\/li>\n<li>\u91cd\u542f\u5355\u4e2a worker \u6216 FPM pool\uff0c\u4e0d\u8981\u76f4\u63a5 reboot<\/li>\n<li>\u628a\u5b9a\u65f6\u4efb\u52a1\u3001\u5907\u4efd\u3001\u5bfc\u51fa\u632a\u5230\u4f4e\u5cf0<\/li>\n<li>\u6269\u5bb9\u6216\u52a0\u526f\u672c\uff0c\u6ce8\u610f\u6570\u636e\u5e93\u8fde\u63a5\u6570\u4e0a\u9650<\/li>\n<li>\u4fdd\u7559\u73b0\u573a\uff1atop\u3001\u7ebf\u7a0b\u6808\u3001\u6162\u65e5\u5fd7\u3001\u9519\u8bef\u65e5\u5fd7<\/li>\n<\/ol>\n<p>\u987a\u5e8f\u662f\u201c\u5148\u6b62\u635f\uff0c\u518d\u5b9a\u4f4d\u201d\u3002\u91cd\u542f\u53ea\u80fd\u4e89\u53d6\u65f6\u95f4\uff0c\u6839\u56e0\u4e0d\u89e3\u51b3\u8fd8\u4f1a\u590d\u53d1\u3002<\/p>\n<h2 id=\"\u7b2c\u4e03\u6b65\u957f\u671f\u4f18\u5316\">\u7b2c\u4e03\u6b65\uff1a\u957f\u671f\u4f18\u5316<\/h2>\n<ul>\n<li>\u6162\u67e5\u8be2\u6cbb\u7406\uff1a\u52a0\u7d22\u5f15\u3001\u62c6\u5206\u5927\u67e5\u8be2\u3001\u907f\u514d N+1<\/li>\n<li>\u7f13\u5b58\u5206\u5c42\uff1aCDN\u3001\u9875\u9762\u3001\u5bf9\u8c61\u3001\u6570\u636e\u5e93<\/li>\n<li>\u5f02\u6b65\u5316\uff1a\u628a\u5bfc\u51fa\u3001\u56fe\u7247\u3001AI \u8c03\u7528\u653e\u961f\u5217<\/li>\n<li>\u9650\u6d41\u548c\u7194\u65ad\uff1a\u6309\u63a5\u53e3\u8bbe\u9608\u503c\uff0c\u5916\u90e8\u8c03\u7528\u8bbe\u77ed\u8d85\u65f6<\/li>\n<li>\u5bb9\u91cf\u89c4\u5212\uff1a\u6309\u5cf0\u503c QPS \u548c\u5355\u673a\u62d0\u70b9\u6269\u5bb9<\/li>\n<li>\u76d1\u63a7\uff1aCPU\u3001load\u3001wa\u3001st\u3001\u6162\u67e5\u8be2\u30015xx \u4e00\u8d77\u770b<\/li>\n<\/ul>\n<figure class=\"wp-block-image size-full\"><img width=\"1280\" height=\"720\" src=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/4ec10f79b6079b5.jpg\" alt=\"\u8d1f\u8f7d\u5747\u8861\u540e\u9762\u7684\u591a\u4e2a\u670d\u52a1\u5668\u8282\u70b9\uff0c\u5176\u4e2d\u4e00\u4e2a\u8fc7\u70ed\" class=\"wp-image-3340\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/4ec10f79b6079b5.jpg 1280w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/4ec10f79b6079b5-300x169.jpg 300w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/4ec10f79b6079b5-1024x576.jpg 1024w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/4ec10f79b6079b5-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption>\u6269\u5bb9\u524d\u5148\u786e\u8ba4\u74f6\u9888\u662f\u5355\u673a\u70ed\u70b9\u8fd8\u662f\u6574\u4f53\u5bb9\u91cf\u3002<\/figcaption><\/figure>\n<p>\u8fd8\u6709\u4e00\u79cd\u60c5\u51b5\uff1aCPU \u9ad8\u4f46\u4e1a\u52a1\u770b\u8d77\u6765\u6b63\u5e38\u3002\u5148\u770b\u662f\u4e0d\u662f\u76d1\u63a7 agent\u3001\u65e5\u5fd7\u91c7\u96c6\u3001\u5907\u4efd\u538b\u7f29\u3001\u75c5\u6bd2\u626b\u63cf\u5728\u8dd1\uff1b\u8fd9\u4e9b\u4efb\u52a1\u901a\u5e38\u5728\u51cc\u6668\u6216\u6574\u70b9\u89e6\u53d1\uff0c\u5bb9\u6613\u548c\u4e1a\u52a1\u9ad8\u5cf0\u91cd\u53e0\u3002\u628a\u5b83\u4eec\u632a\u5230\u4f4e\u5cf0\uff0c\u6216\u8005\u9650\u5236 CPU \u548c IO \u4f18\u5148\u7ea7\uff0c\u5f80\u5f80\u6bd4\u6269\u5bb9\u6709\u6548\u3002<\/p>\n<p>\u53e6\u5916\uff0cCPU 100% \u4e0d\u7b49\u4e8e\u7528\u6237\u4f53\u9a8c\u4e00\u5b9a\u5dee\u3002\u5982\u679c\u8bf7\u6c42\u961f\u5217\u6ca1\u5806\u79ef\u3001p95 \u6b63\u5e38\uff0c\u8bf4\u660e\u673a\u5668\u5728\u6ee1\u8d1f\u8377\u4f46\u8fd8\u80fd\u670d\u52a1\uff1b\u8fd9\u65f6\u5019\u8981\u505a\u7684\u662f\u52a0\u4f59\u91cf\uff0c\u800c\u4e0d\u662f\u614c\u7740\u91cd\u542f\u3002\u770b r \u961f\u5217\u3001p95 \u548c\u9519\u8bef\u7387\uff0c\u6bd4\u770b\u5355\u4e2a CPU \u6570\u5b57\u53ef\u9760\u3002<\/p>\n<p>\u8fd8\u6709\u4e00\u79cd\u5e38\u89c1\u8bef\u5224\uff1a\u628a\u201cCPU 100%\u201d\u5f53\u6210\u201cCPU \u4e0d\u591f\u201d\u3002\u5982\u679c\u5355\u6838\u88ab\u6253\u6ee1\u3001\u5176\u4ed6\u6838\u7a7a\u95f2\uff0c\u95ee\u9898\u5728\u5355\u7ebf\u7a0b\u4ee3\u7801\u6216\u9501\uff0c\u4e0d\u5728\u6838\u6570\uff1b\u8fd9\u65f6\u5019\u52a0\u6838\u6ca1\u7528\uff0c\u8981\u505a\u7684\u662f\u628a\u4efb\u52a1\u62c6\u5e76\u884c\u6216\u4f18\u5316\u7b97\u6cd5\u3002\u53cd\u8fc7\u6765\uff0c\u6240\u6709\u6838\u90fd\u6ee1\u4e14 QPS \u540c\u6b65\u4e0a\u6da8\uff0c\u624d\u662f\u771f\u7684\u5bb9\u91cf\u4e0d\u591f\u3002<\/p>\n<p>\u65e5\u5fd7\u548c\u76d1\u63a7\u81ea\u5df1\u4e5f\u4f1a\u5403 CPU\u3002\u8bbf\u95ee\u65e5\u5fd7\u592a\u5927\u3001\u65e5\u5fd7\u91c7\u96c6 agent \u9891\u7e41\u5237\u76d8\u3001\u76d1\u63a7\u6bcf\u79d2\u6293\u4e00\u6b21\u5168\u91cf\u6307\u6807\uff0c\u90fd\u4f1a\u5728\u9ad8\u5cf0\u671f\u653e\u5927\u5f00\u9500\u3002\u628a\u91c7\u6837\u9891\u7387\u548c\u65e5\u5fd7\u7ea7\u522b\u8c03\u4f4e\uff0c\u5f80\u5f80\u80fd\u56de\u6536\u4e00\u90e8\u5206 CPU\u3002<\/p>\n<p>\u6700\u540e\u63d0\u9192\u4e00\u53e5\uff1a\u6392\u67e5\u524d\u5148\u8bb0\u5f55\u65f6\u95f4\u70b9\u548c\u6570\u503c\uff0c\u522b\u4e00\u8fb9\u67e5\u4e00\u8fb9\u5fd8\uff0c\u4e8b\u540e\u590d\u76d8\u6ca1\u6709\u57fa\u7ebf\u3002<\/p>\n<h2 id=\"\u5e38\u89c1\u95ee\u9898-faq\">\u5e38\u89c1\u95ee\u9898 FAQ<\/h2>\n<p><strong>Q1\uff1aCPU 100% \u4e00\u5b9a\u8981\u91cd\u542f\u5417\uff1f<\/strong><\/p>\n<p>\u4e0d\u4e00\u5b9a\u3002\u5148\u770b\u662f\u54ea\u4e2a\u8fdb\u7a0b\u3001\u54ea\u4e2a\u7ebf\u7a0b\u3002\u91cd\u542f\u53ea\u80fd\u77ed\u6682\u6062\u590d\uff0c\u6b7b\u5faa\u73af\u548c\u6162 SQL \u8fd8\u4f1a\u518d\u6765\u3002<\/p>\n<p><strong>Q2\uff1aload \u9ad8\u4f46 CPU \u4e0d\u9ad8\uff0c\u662f\u4ec0\u4e48\u539f\u56e0\uff1f<\/strong><\/p>\n<p>\u591a\u534a\u662f IO \u7b49\u5f85\u6216\u5927\u91cf\u4e0d\u53ef\u4e2d\u65ad\u8fdb\u7a0b\u3002\u770b wa\u3001iostat \u548c\u78c1\u76d8\u5ef6\u8fdf\uff0c\u4e0d\u8981\u53ea\u76ef CPU\u3002<\/p>\n<p><strong>Q3\uff1asteal \u9ad8\u600e\u4e48\u529e\uff1f<\/strong><\/p>\n<p>\u8bf4\u660e\u5bbf\u4e3b\u673a\u8d44\u6e90\u4e89\u62a2\u3002\u5148\u8bb0\u5f55\u65f6\u6bb5\u548c\u6570\u503c\uff0c\u627e\u670d\u52a1\u5546\u786e\u8ba4\uff1b\u957f\u671f\u8dd1\u751f\u4ea7\u5efa\u8bae\u6362\u72ec\u4eab\u6216\u4f4e\u8d85\u552e\u7684\u673a\u578b\u3002<\/p>\n<p><strong>Q4\uff1aPHP-FPM \u5360\u6ee1 CPU \u600e\u4e48\u67e5\uff1f<\/strong><\/p>\n<p>\u5f00 slow log \u548c status\uff0c\u770b\u54ea\u4e2a\u811a\u672c\u6162\u3001\u54ea\u4e2a\u63a5\u53e3\u6253\u6ee1\uff1b\u518d\u7ed3\u5408 Nginx \u8bbf\u95ee\u65e5\u5fd7\u5b9a\u4f4d\u8bf7\u6c42\u3002<\/p>\n<p><strong>Q5\uff1a\u8981\u4e0d\u8981\u76f4\u63a5\u5347\u914d\uff1f<\/strong><\/p>\n<p>\u5982\u679c\u662f\u5bb9\u91cf\u95ee\u9898\uff0c\u5347\u914d\u6709\u6548\uff1b\u5982\u679c\u662f\u4ee3\u7801\u6b7b\u5faa\u73af\u6216\u6162\u67e5\u8be2\uff0c\u5347\u914d\u53ea\u662f\u628a\u95ee\u9898\u63a8\u8fdf\u3002\u5148\u5b9a\u4f4d\u518d\u51b3\u5b9a\u3002<\/p>\n<h2 id=\"\u603b\u7ed3\">\u603b\u7ed3<\/h2>\n<p>CPU 100% \u7684\u6392\u67e5\u987a\u5e8f\u662f\uff1a\u770b us\/sy\/wa\/st \u2192 \u627e\u8fdb\u7a0b \u2192 \u770b\u7ebf\u7a0b\u6808 \u2192 \u5bf9\u7167 QPS \u548c\u6162\u67e5\u8be2 \u2192 \u5e94\u6025\u6b62\u635f \u2192 \u957f\u671f\u4f18\u5316\u3002\u5148\u5206\u6e05\u662f\u7b97\u5f97\u591a\u3001\u7b49\u5f97\u4e45\uff0c\u8fd8\u662f\u88ab\u90bb\u5c45\u62a2\uff0c\u518d\u51b3\u5b9a\u52a8\u54ea\u91cc\u3002<\/p>\n<p>\u5982\u679c\u6392\u67e5\u4e0b\u6765\u662f\u673a\u5668\u5bb9\u91cf\u6216\u8d85\u552e\u95ee\u9898\uff0c\u53ef\u4ee5\u6309\u5c0f\u65f6\u5f00\u4e00\u53f0<a href=\"https:\/\/www.ygcloud.com\/vps\/hong-kong-cn2-vps\">\u8424\u5149\u4e91\u9999\u6e2f CN2 VPS<\/a> \u505a\u5bf9\u7167\u6d4b\u8bd5\uff0c\u786e\u8ba4\u74f6\u9888\u518d\u51b3\u5b9a\u957f\u671f\u914d\u7f6e\u3002<\/p>\n<h2 id=\"\u76f8\u5173\u63a8\u8350\">\u76f8\u5173\u63a8\u8350<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/3231\/\">\u7f51\u7ad9 502 \u9519\u8bef\u600e\u4e48\u6392\u67e5\uff1fNginx\u3001PHP-FPM \u4e0e\u540e\u7aef\u8d85\u65f6<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/3249\/\">VPS \u8d85\u552e\u662f\u4ec0\u4e48\uff1f\u600e\u4e48\u5224\u65ad\u4fbf\u5b9c VPS \u6709\u6ca1\u6709\u8d85\u552e<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/3279\/\">VPS \u7684 CPU \u578b\u53f7\u600e\u4e48\u770b\uff1fEPYC\u3001Xeon \u4e0e\u5171\u4eab\u6838<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/1874\/\">\u8bbf\u95ee\u6ce2\u52a8\u65f6\uff0c\u5148\u505a\u7f13\u5b58\u8fd8\u662f\u5148\u505a\u9650\u6d41<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/3243\/\">\u7f51\u7ad9\u88ab DDoS \u653b\u51fb\u600e\u4e48\u529e\uff1fCC \u653b\u51fb\u3001\u6e05\u6d17\u4e0e\u6b62\u635f 6 \u6b65<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u5148\u8bf4\u7ed3\u8bba\uff1aCPU 100% \u53ea\u662f\u75c7\u72b6\uff0c\u5148\u5206\u6e05\u662f\u7528\u6237\u6001\u7b97\u5f97\u592a\u591a\u3001\u7cfb\u7edf\u6001\u5728\u5fd9\u3001IO \u7b49\u5f85\uff0c\u8fd8\u662f\u88ab\u5bbf\u4e3b\u673a\u5077\u8d70\u4e86\uff08steal\uff09\u3002\u518d\u770b\u662f\u54ea\u4e2a\u8fdb\u7a0b\u3001\u54ea\u4e2a\u7ebf\u7a0b\u3001\u54ea\u6761 SQL \u6216\u54ea\u4e2a\u5916\u90e8\u4f9d\u8d56\uff0c\u6700\u540e\u624d\u51b3\u5b9a\u9650\u6d41\u3001\u964d\u7ea7\u3001\u6269\u5bb9\u8fd8\u662f\u4fee\u4ee3\u7801\u3002\u4e0a\u6765\u5c31\u91cd\u542f\uff0c\u901a\u5e38\u53ea\u80fd\u597d\u5341\u5206&#8230;<\/p>\n","protected":false},"author":1,"featured_media":3337,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[43,46],"topic":[],"class_list":["post-3341","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-100","tag-vps"],"yoast_head":"<!-- This site is optimized with the Yoast SEO 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property=\"og:description\" content=\"CPU 100% \u5148\u770b us\u3001sy\u3001wa\u3001st\uff0c\u518d\u5b9a\u4f4d\u8fdb\u7a0b\u548c\u7ebf\u7a0b\uff0c\u6700\u540e\u67e5\u6162\u67e5\u8be2\u548c\u5916\u90e8\u4f9d\u8d56\u3002\u7ed9\u51fa\u6392\u67e5\u547d\u4ee4\u3001\u5e94\u6025\u987a\u5e8f\u548c\u957f\u671f\u4f18\u5316\u6e05\u5355\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ygcloud.com\/knowledge\/3341\/\" \/>\n<meta property=\"og:site_name\" content=\"VPS\u77e5\u8bc6\u5206\u4eab\u7ad9\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-28T06:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-28T07:35:48+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/5670f0be50534f1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1600\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"\u6d77\u5916VPS\u63a8\u8350\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6d77\u5916VPS\u63a8\u8350\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.ygcloud.com\\\/knowledge\\\/3341\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.ygcloud.com\\\/knowledge\\\/3341\\\/\"},\"author\":{\"name\":\"\u6d77\u5916VPS\u63a8\u8350\",\"@id\":\"https:\\\/\\\/www.ygcloud.com\\\/knowledge\\\/#\\\/schema\\\/person\\\/601f21f360aeefaddbdfd0f14953d704\"},\"headline\":\"\u4e91\u670d\u52a1\u5668 CPU 100% \u6392\u67e5\uff1a7 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