{"id":1773,"date":"2025-10-25T22:19:25","date_gmt":"2025-10-25T14:19:25","guid":{"rendered":"https:\/\/www.dataz8.com\/?p=1773"},"modified":"2025-10-25T23:28:17","modified_gmt":"2025-10-25T15:28:17","slug":"%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%b3%bb%e7%bb%9f%e8%b4%9f%e8%bd%bd%e8%bf%87%e9%ab%98%e5%92%8c%e7%a3%81%e7%9b%98io%e7%88%86%e6%bb%a1%e5%88%86%e6%9e%90%e4%bb%a5%e5%8f%8a%e8%a7%a3%e5%86%b3","status":"publish","type":"post","link":"https:\/\/www.dataz8.com\/?p=1773","title":{"rendered":"\u670d\u52a1\u5668\u7cfb\u7edf\u8d1f\u8f7d\u8fc7\u9ad8\u548c\u78c1\u76d8IO\u7206\u6ee1\u5206\u6790\u4ee5\u53ca\u89e3\u51b3"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.dataz8.com\/?p=1773\/#1_%E4%BA%8B%E4%BB%B6%E7%AE%80%E8%BF%B0\" >1. \u4e8b\u4ef6\u7b80\u8ff0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.dataz8.com\/?p=1773\/#2_%E9%97%AE%E9%A2%98%E5%88%86%E6%9E%90\" >2. \u95ee\u9898\u5206\u6790<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.dataz8.com\/?p=1773\/#21_CPU%E6%80%BB%E4%BD%93%E7%8A%B6%E6%80%81%EF%BC%88avg-cpu%EF%BC%89\" >2.1 CPU\u603b\u4f53\u72b6\u6001\uff08avg-cpu\uff09<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.dataz8.com\/?p=1773\/#22_%E7%A3%81%E7%9B%98IO%E6%80%A7%E8%83%BD\" >2.2 \u78c1\u76d8I\/O\u6027\u80fd<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.dataz8.com\/?p=1773\/#23_%E7%B3%BB%E7%BB%9F%E8%B4%9F%E8%BD%BD%EF%BC%88top%EF%BC%89\" >2.3 \u7cfb\u7edf\u8d1f\u8f7d\uff08top\uff09<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.dataz8.com\/?p=1773\/#24_%E5%88%86%E6%9E%90%E6%80%BB%E7%BB%93\" >2.4 \u5206\u6790\u603b\u7ed3<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.dataz8.com\/?p=1773\/#3_%E8%A7%A3%E5%86%B3%E9%97%AE%E9%A2%98\" >3. \u89e3\u51b3\u95ee\u9898<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.dataz8.com\/?p=1773\/#4_%E5%8F%82%E6%95%B0%E5%90%AB%E4%B9%89\" >4. \u53c2\u6570\u542b\u4e49<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.dataz8.com\/?p=1773\/#41_iostat%E8%BE%93%E5%87%BA\" >4.1 iostat\u8f93\u51fa<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.dataz8.com\/?p=1773\/#411_avg-cpu%E8%AF%A5%E8%A1%8C%E8%BE%93%E5%87%BA%E5%90%AB%E4%B9%89\" >4.1.1 avg-cpu\u8be5\u884c\u8f93\u51fa\u542b\u4e49<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.dataz8.com\/?p=1773\/#412_Device%E8%AF%A5%E8%A1%8C%E8%BE%93%E5%87%BA%E5%90%AB%E4%B9%89\" >4.1.2 Device\u8be5\u884c\u8f93\u51fa\u542b\u4e49<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.dataz8.com\/?p=1773\/#42_top%E8%BE%93%E5%87%BA\" >4.2 top\u8f93\u51fa<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_%E4%BA%8B%E4%BB%B6%E7%AE%80%E8%BF%B0\"><\/span>1. \u4e8b\u4ef6\u7b80\u8ff0<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6709\u4e00\u53f0\u670d\u52a1\u5668\uff0c\u53d1\u73b0\u957f\u65f6\u95f4\u7cfb\u7edf\u8d1f\u8f7d\u5f88\u9ad8\uff0c\u4e14\u7cfb\u7edf\u8d1f\u8f7d\u6ca1\u80fd\u964d\u4e0b\u6765\uff0c\u4f7f\u7528<code>top<\/code>\u8fdb\u884c\u67e5\u770b<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><pre class=\"shiki light-plus\" style=\"background-color: #FFFFFF\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #795E26\">top<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">-<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #098658\">14<\/span><span style=\"color: #A31515\">:46:15<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">up<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #098658\">481<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">days,<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #098658\">18<\/span><span style=\"color: #A31515\">:18,<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #098658\">1<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">user,<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">load<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">average:<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #098658\">61.45<\/span><span style=\"color: #A31515\">,<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #098658\">58.41<\/span><span style=\"color: #A31515\">,<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #098658\">45.99<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u67e5\u770b\u8fd9\u53f0\u670d\u52a1\u5668\u8fdb\u7a0b\uff0c\u8be5\u53f0\u670d\u52a1\u5668\u642d\u5efa\u4e86oracle\uff0c\u53d1\u73b0\u6709\u8f83\u591a\u8fd0\u884c\u8fdb\u7a0b\u662f\u6570\u636e\u5e93\u7684\uff0c\u56e0\u662f\u6d4b\u8bd5\u6570\u636e\u5e93\uff0c\u6240\u4ee5\u91cd\u542f\u6570\u636e\u5e93\u6253\u7b97\u91ca\u653e\u8fd0\u884c\u8fdb\u7a0b\uff0c\u4f46\u91cd\u542f\u8fc7\u7a0b\u4e2d\uff0c\u53d1\u73b0\u6570\u636e\u5e93\u542f\u4e0d\u8d77\u6765\uff0c\u5904\u4e8eunhealthy\u72b6\u6001\uff0c\u4e14\u53cd\u5e94\u5f88\u6162\uff0c\u9042\u67e5\u770b\u78c1\u76d8IO\u4f7f\u7528\u60c5\u51b5\uff0c\u4f7f\u7528<code>iostat -x 2<\/code>\u8fdb\u884c\u67e5\u770b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"179\" src=\"https:\/\/www.dataz8.com\/wp-content\/uploads\/2025\/10\/1-1024x179.png?v=1761404482\" alt=\"\" class=\"wp-image-1778\" srcset=\"https:\/\/www.dataz8.com\/wp-content\/uploads\/2025\/10\/1-1024x179.png?v=1761404482 1024w, https:\/\/www.dataz8.com\/wp-content\/uploads\/2025\/10\/1-300x52.png?v=1761404482 300w, https:\/\/www.dataz8.com\/wp-content\/uploads\/2025\/10\/1-768x134.png?v=1761404482 768w, https:\/\/www.dataz8.com\/wp-content\/uploads\/2025\/10\/1.png?v=1761404482 1227w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u73b0\u78c1\u76d8sdb\u4ee5\u53ca\u903b\u8f91\u5377dm-2\u78c1\u76d8I\/O\u5229\u7528\u7387\u5df2\u7ecf100%\uff0c\u5df2\u7ecf\u7206\u6ee1\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_%E9%97%AE%E9%A2%98%E5%88%86%E6%9E%90\"><\/span>2. \u95ee\u9898\u5206\u6790<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u622a\u56fe\u53ef\u4ee5\u770b\u5230\u5173\u952e\u6027\u80fd\u6307\u6807\u5982\u4e0b\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"21_CPU%E6%80%BB%E4%BD%93%E7%8A%B6%E6%80%81%EF%BC%88avg-cpu%EF%BC%89\"><\/span>2.1 CPU\u603b\u4f53\u72b6\u6001\uff08avg-cpu\uff09<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6307\u6807<\/th><th>\u6570\u503c<\/th><th>\u542b\u4e49<\/th><\/tr><\/thead><tbody><tr><td>%user<\/td><td>1.64%<\/td><td>\u7528\u6237\u6001 CPU \u5360\u7528\u4f4e<\/td><\/tr><tr><td>%system<\/td><td>0.75%<\/td><td>\u7edf\u6001 CPU \u5360\u7528\u4f4e<\/td><\/tr><tr><td>%iowait<\/td><td><strong>46.92%<\/strong><\/td><td>\u26a0\ufe0f \u975e\u5e38\u9ad8\uff0c\u8868\u793a\u5927\u91cf CPU \u5728\u7b49\u5f85\u78c1\u76d8 I\/O \u5b8c\u6210<\/td><\/tr><tr><td>%idle<\/td><td>50.69%<\/td><td>CPU \u6709\u7a7a\u95f2\uff0c\u4f46\u88ab I\/O \u963b\u585e\u4e25\u91cd<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8bf4\u660e\uff1aCPU \u5e76\u4e0d\u662f\u74f6\u9888<\/strong>\uff0c\u4f46\u51e0\u4e4e\u4e00\u534a\u7684 CPU \u65f6\u95f4\u90fd\u5728\u7b49\u5f85\u78c1\u76d8 I\/O\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"22_%E7%A3%81%E7%9B%98IO%E6%80%A7%E8%83%BD\"><\/span>2.2 \u78c1\u76d8I\/O\u6027\u80fd<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u8bbe\u5907\u884c\u53ef\u4ee5\u770b\u5230\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u8bbe\u5907<\/th><th>r\/s<\/th><th>w\/s<\/th><th>await(ms)<\/th><th>svctm(ms)<\/th><th>%util<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td><strong>sdb<\/strong><\/td><td>49<\/td><td>14<\/td><td><strong>49.76<\/strong><\/td><td>15.87<\/td><td><strong>100%<\/strong><\/td><td>\u5df2\u6253\u6ee1\uff0c\u8bfb\u5199\u90fd\u6709\uff0cI\/O \u961f\u5217\u4e25\u91cd<\/td><\/tr><tr><td><strong>dm-2<\/strong><\/td><td>66<\/td><td>10<\/td><td><strong>41.30<\/strong><\/td><td>13.16<\/td><td><strong>100%<\/strong><\/td><td>\u903b\u8f91\u5377\uff0c\u540c\u6837\u88ab\u6253\u6ee1<\/td><\/tr><tr><td>\u5176\u4ed6\u8bbe\u5907<\/td><td>0<\/td><td>0<\/td><td>0<\/td><td>0<\/td><td>0<\/td><td>\u7a7a\u95f2<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u770b\u51fa\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>sdb<\/code>\u4e0e<code>dm-2<\/code>\uff08\u903b\u8f91\u5377\uff09\u78c1\u76d8I\/O\u5df2100%\u5229\u7528\u7387\uff1b<\/li>\n\n\n\n<li><code>await<\/code>\u572840~50ms\uff0c\u5c5e\u4e8e\u975e\u5e38\u9ad8\u7684\u5ef6\u8fdf\uff1b<\/li>\n\n\n\n<li>\u7cfb\u7edfload average\u8d85\u9ad8\uff0861+\uff09\uff0c\u4e3b\u8981\u7531I\/O\u963b\u585e\u53bf\u57ce\u5bfc\u81f4\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"23_%E7%B3%BB%E7%BB%9F%E8%B4%9F%E8%BD%BD%EF%BC%88top%EF%BC%89\"><\/span>2.3 \u7cfb\u7edf\u8d1f\u8f7d\uff08top\uff09<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">load average: 61.45, 58.41, 45.99<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7cfb\u7edf\u8d1f\u8f7d\u8fdc\u9ad8\u4e8e CPU \u6838\u5fc3\u6570\uff0c\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5927\u91cf\u8fdb\u7a0b\u5728\u7b49\u5f85I\/O\uff1b<\/li>\n\n\n\n<li>\u5e76\u975eCPU\u8ba1\u7b97\u95ee\u9898\uff0c\u800c\u662f<strong>\u78c1\u76d8\u74f6\u9888\u5bfc\u81f4\u4efb\u52a1\u6392\u961f<\/strong>\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"24_%E5%88%86%E6%9E%90%E6%80%BB%E7%BB%93\"><\/span>2.4 \u5206\u6790\u603b\u7ed3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5355\u5757\u78c1\u76d8\uff08sdb\uff09\u548c\u903b\u8f91\u5377\uff08dm-2\uff09\u88ab\u8fc7\u5ea6\u4f7f\u7528<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u53ef\u80fd\u662f\u6570\u636e\u5e93\u3001\u65e5\u5fd7\u6216\u7f13\u5b58\u76ee\u5f55\u96c6\u4e2d\u5728\u540c\u4e00\u78c1\u76d8\uff1b<\/li>\n\n\n\n<li>\u6216NFS\u3001\u865a\u62df\u673a\u955c\u50cf\u7b49I\/O\u5bc6\u96c6\u578b\u4efb\u52a1\u8fc7\u8f7d\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>I\/O\u8c03\u5ea6\u5ef6\u8fdf\u9ad8<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>await<\/code>\u63a5\u8fd150ms\uff0c\u8bf4\u660eI\/O\u961f\u5217\u4e25\u91cd\u79ef\u538b\uff1b<\/li>\n\n\n\n<li><code>avgpu-sz<\/code>\u224812\uff0c\u8868\u793a\u5e73\u5747\u961f\u5217\u957f\u5ea6\u8fc7\u957f\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u53ef\u80fd\u7684\u6587\u4ef6\u7cfb\u7edf\u788e\u7247\u6216\u4e0d\u5408\u7406\u6302\u8f7d<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u662fext4\/xfs\u957f\u65f6\u95f4\u8fd0\u884c\u672a\u4f18\u5316\uff0c\u788e\u7247\u548c\u65e5\u5fd7\u5199\u5165\u53ef\u80fd\u9020\u6210\u5ef6\u8fdf\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5e95\u5c42\u8d44\u6e90\u6c60\u8d44\u6e90\u7d27\u5f20<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u56e0\u8be5\u53f0\u670d\u52a1\u5668\u662f\u865a\u62df\u673a\uff0c\u5177\u4f53\u8d44\u6e90\u6765\u6e90\u4e8e\u5e95\u5c42\u8d44\u6e90\u6c60\uff0c\u6709\u53ef\u80fd\u5e95\u5c42\u8d44\u6e90\u6c60\u88ab\u5176\u4ed6\u865a\u62df\u673a\u8fc7\u5ea6\u4f7f\u7528\uff0c\u6324\u5360\u4e86\u8be5\u53f0\u670d\u52a1\u5668\u7684\u8d44\u6e90\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_%E8%A7%A3%E5%86%B3%E9%97%AE%E9%A2%98\"><\/span>3. \u89e3\u51b3\u95ee\u9898<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6839\u636e\u4ee5\u4e0a\u5206\u6790\uff0c\u8fdb\u884c\u9010\u4e00\u6392\u67e5\uff0c\u6700\u7ec8\u627e\u5230\u95ee\u9898\u6839\u6e90\uff1a\u5e95\u5c42\u8d44\u6e90\u6c60I\/O\u88ab\u67d0\u53f0\u865a\u62df\u673a\u5360\u7528\u4e8675%\u4ee5\u4e0a\uff0c\u5bfc\u81f4\u5e95\u5c42I\/O\u5728\u5206\u914d\u7ed9\u5176\u4ed6\u865a\u62df\u673a\u65f6\u4e0d\u591f\u7528\u4e86\uff0c\u901a\u8fc7\u91ca\u653e\u67d0\u53f0\u865a\u62df\u673a\u6b63\u5728\u4f7f\u7528\u7684\u670d\u52a1\u8d44\u6e90\uff0c\u4ece\u800c\u91ca\u653e\u51fa\u5360\u7528\u7684I\/O\uff0c\u78c1\u76d8I\/O\u91ca\u653e\u51fa\u6765\u540e\uff0c\u8be5\u53f0\u670d\u52a1\u5668\u6062\u590d\u6b63\u5e38\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"337\" data-src=\"https:\/\/www.dataz8.com\/wp-content\/uploads\/2025\/10\/2-1-1-1024x337.png?v=1761406044\" alt=\"\" class=\"wp-image-1785 lazyload\" data-srcset=\"https:\/\/www.dataz8.com\/wp-content\/uploads\/2025\/10\/2-1-1-1024x337.png?v=1761406044 1024w, https:\/\/www.dataz8.com\/wp-content\/uploads\/2025\/10\/2-1-1-300x99.png?v=1761406044 300w, https:\/\/www.dataz8.com\/wp-content\/uploads\/2025\/10\/2-1-1-768x252.png?v=1761406044 768w, https:\/\/www.dataz8.com\/wp-content\/uploads\/2025\/10\/2-1-1-1536x505.png?v=1761406044 1536w, https:\/\/www.dataz8.com\/wp-content\/uploads\/2025\/10\/2-1-1-2048x673.png?v=1761406044 2048w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/337;\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_%E5%8F%82%E6%95%B0%E5%90%AB%E4%B9%89\"><\/span>4. \u53c2\u6570\u542b\u4e49<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"41_iostat%E8%BE%93%E5%87%BA\"><\/span>4.1 iostat\u8f93\u51fa<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"411_avg-cpu%E8%AF%A5%E8%A1%8C%E8%BE%93%E5%87%BA%E5%90%AB%E4%B9%89\"><\/span>4.1.1 avg-cpu\u8be5\u884c\u8f93\u51fa\u542b\u4e49<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u662f\u7cfb\u7edf\u6027\u80fd\u76d1\u63a7\u4e2d\u6700\u91cd\u8981\u7684\u4e00\u884c\u4e4b\u4e00\uff0c\u5982\u622a\u56fe\u4e2d\u90e8\u5206\uff1a<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><pre class=\"shiki light-plus\" style=\"background-color: #FFFFFF\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #795E26\">avg-cpu:<\/span><span style=\"color: #000000\">  <\/span><span style=\"color: #A31515\">%user<\/span><span style=\"color: #000000\">  <\/span><span style=\"color: #A31515\">%nice<\/span><span style=\"color: #000000\">  <\/span><span style=\"color: #A31515\">%system<\/span><span style=\"color: #000000\">  <\/span><span style=\"color: #A31515\">%iowait<\/span><span style=\"color: #000000\">  <\/span><span style=\"color: #A31515\">%steal<\/span><span style=\"color: #000000\">  <\/span><span style=\"color: #A31515\">%idle<\/span><\/span>\n<span class=\"line\"><span style=\"color: #000000\">           <\/span><span style=\"color: #795E26\">1.64<\/span><span style=\"color: #000000\">   <\/span><span style=\"color: #098658\">0.00<\/span><span style=\"color: #000000\">     <\/span><span style=\"color: #098658\">0.75<\/span><span style=\"color: #000000\">     <\/span><span style=\"color: #098658\">46.92<\/span><span style=\"color: #000000\">    <\/span><span style=\"color: #098658\">0.00<\/span><span style=\"color: #000000\">   <\/span><span style=\"color: #098658\">50.69<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e00\u884c\u901a\u5e38\u6765\u81ea <code>iostat<\/code>\uff08\u6216 <code>sar -u<\/code>\uff09\u8f93\u51fa\uff0c\u663e\u793a\u7684\u662f <strong>CPU \u5404\u79cd\u4f7f\u7528\u72b6\u6001\u7684\u5e73\u5747\u5206\u5e03<\/strong>\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5b57\u6bb5\u542b\u4e49\u603b\u89c8<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5b57\u6bb5<\/th><th>\u542b\u4e49<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>%user<\/td><td>\u7528\u6237\u6001CPU\u5360\u7528\u7387<\/td><td>\u6267\u884c\u7528\u6237\u8fdb\u7a0b\uff08\u975e\u5185\u6838\uff09\u65f6\u6d88\u8017\u7684CPU\u6bd4\u4f8b<\/td><\/tr><tr><td>%nice<\/td><td>\u8c03\u6574\u4f18\u5148\u7ea7\u540e\u7684\u7528\u6237\u6001CPU\u5360\u7528\u7387<\/td><td>\u6267\u884c\u88ab\u201cnice\u201d\u8c03\u6574\u8fc7\u4f18\u5148\u7ea7\u7684\u8fdb\u7a0b\u6240\u5360\u7528\u7684CPU<\/td><\/tr><tr><td>%system<\/td><td>\u5185\u6838CPU\u5360\u7528\u7387<\/td><td>\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u6267\u884c\u4efb\u52a1\uff08\u5982\u7cfb\u7edf\u8c03\u7528\u3001\u9a71\u52a8\u3001IO\u8c03\u5ea6\uff09\u5360\u7528\u7684CPU\u6bd4\u4f8b<\/td><\/tr><tr><td>%iowait<\/td><td>\u7b49\u5f85I\/O\u5b8c\u6210\u7684CPU\u65f6\u95f4\u6bd4\u4f8b<\/td><td>CPU\u5904\u4e8e\u7b49\u5f85\u78c1\u76d8\/\u7f51\u7edcI\/O\u54cd\u5e94\u7684\u72b6\u6001<\/td><\/tr><tr><td>%steal<\/td><td>\u865a\u62df\u5316\u201c\u88ab\u76d7\u7528\u201dCPU\u65f6\u95f4<\/td><td>\u865a\u62df\u673a\u4e2d\uff0c\u5bbf\u4e3b\u673a\u5206\u914d\u7ed9\u5176\u4ed6\u865a\u673a\u7684CPU\u65f6\u95f4\uff08\u865a\u62df\u673a\u51e0\u4e4e\u4e3a0\uff09<\/td><\/tr><tr><td>%idle<\/td><td>\u7a7a\u95f2CPU\u65f6\u95f4\u6bd4\u4f8b<\/td><td>CPU\u65e0\u4efb\u52a1\u6267\u884c\u3001\u5b8c\u5168\u7a7a\u95f2\u7684\u65f6\u95f4\u767e\u5206\u6bd4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u539f\u7406\u8bf4\u660e\uff08CPU\u72b6\u6001\u6765\u6e90\uff09<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7cfb\u7edf\u5185\u6838\u7edf\u8ba1\u6bcf\u4e2aCPU\u5728\u4e0d\u540c\u72b6\u6001\u4e0b\u7684\u7d2f\u8ba1\u65f6\u95f4\uff0c\u4e3b\u8981\u6709\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>user\uff1a\u7528\u6237\u4ee3\u7801\u6267\u884c\uff1b<\/li>\n\n\n\n<li>system\uff1a\u5185\u6838\u4ee3\u7801\u6267\u884c\uff1b<\/li>\n\n\n\n<li>iowait\uff1aCPU\u7a7a\u95f2\u4f46\u6709I\/O\u7b49\u5f85\uff1b<\/li>\n\n\n\n<li>idle\uff1aCPU\u771f\u6b63\u7a7a\u95f2\uff1b<\/li>\n\n\n\n<li>nice\uff1a\u5e26\u4f18\u5148\u7ea7\u8c03\u6574\u7684\u7528\u6237\u4efb\u52a1\uff1b<\/li>\n\n\n\n<li>steal\uff1a\u865a\u62df\u5316\u88ab\u62a2\u5360\u7684CPU\u65f6\u95f4\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><code>iostat<\/code> \u6216 <code>sar<\/code> \u4f1a\u5728\u4e00\u6bb5\u65f6\u95f4\u91c7\u6837\u540e\u8f93\u51fa\u6bcf\u79cd\u72b6\u6001\u7684\u5360\u6bd4\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u622a\u56fe\u4e2d\u7684\u5b9e\u9645\u6570\u503c\u5206\u6790<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6307\u6807<\/th><th>\u6570\u503c<\/th><\/tr><\/thead><tbody><tr><td>%user = 1.64%<\/td><td>\u7528\u6237\u6001\u8d1f\u8f7d\u6781\u4f4e\uff0c\u8bf4\u660e\u5e94\u7528\u8ba1\u7b97\u538b\u529b\u4e0d\u5927<\/td><\/tr><tr><td>%system = 0.75%<\/td><td>\u7cfb\u7edf\u8c03\u7528\u3001\u5185\u6838\u64cd\u4f5c\u5f88\u5c11<\/td><\/tr><tr><td><strong>%iowait = 46.92%<\/strong> \u26a0\ufe0f<\/td><td><strong>\u975e\u5e38\u9ad8\uff01<\/strong> \u8868\u793aCPU\u8fd1\u4e00\u534a\u65f6\u95f4\u90fd\u5728\u7b49\u5f85\u78c1\u76d8I\/O\u5b8c\u6210<\/td><\/tr><tr><td>%idle = 50.69%<\/td><td>\u4e00\u534a\u65f6\u95f4CPU\u771f\u6b63\u7a7a\u95f2\uff0c\u4f46\u56e0\u4e3aI\/O\u7b49\u5f85\uff0c\u65e0\u6cd5\u5145\u5206\u5229\u7528<\/td><\/tr><tr><td>%nice = 0.00%<\/td><td>\u4f7f\u7528 <code>nice<\/code> \u8c03\u6574\u7684\u8fdb\u7a0b<\/td><\/tr><tr><td>%steal = 0.00%<\/td><td>\u865a\u62df\u673a CPU \u5f97\u5230\u4e86\u5b8c\u5168\u8c03\u5ea6\uff0c\u6ca1\u6709\u88ab\u5bbf\u4e3b\u673a\u62a2\u8d70\u65f6\u95f4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5173\u952e\u6307\u6807\u89e3\u91ca\u91cd\u70b9<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\uff09 <code>%user<\/code> + <code>%system<\/code><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee3\u8868 CPU \u771f\u6b63\u201c\u5e72\u6d3b\u201d\u7684\u65f6\u95f4\u6bd4\u4f8b\uff08\u6267\u884c\u5e94\u7528 + \u5185\u6838\uff09\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6b63\u5e38\u670d\u52a1\u5668\u8d1f\u8f7d\uff1a10% ~ 70%\uff1b<\/li>\n\n\n\n<li>\u5982\u679c\u63a5\u8fd1 100%\uff0cCPU\u662f\u74f6\u9888\uff1b<\/li>\n\n\n\n<li>\u8fd9\u91cc\u53ea\u6709 2.39%\uff0cCPU \u5f88\u95f2\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">2\uff09 <code>%iowait<\/code><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8868\u793aCPU\u7a7a\u95f2\u4f46\u88abI\/O\u963b\u585e\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6b63\u5e38\uff1a0~5%\uff1b<\/li>\n\n\n\n<li>\u4e2d\u7b49\uff1a5~15%\uff1b<\/li>\n\n\n\n<li>\u8d85\u9ad8\uff1a&gt;20%\uff08\u4e25\u91cdI\/O\u74f6\u9888\uff09\uff1b<\/li>\n\n\n\n<li>\u8fd9\u91cc\u662f <strong>46.92% \u2192 \u6781\u9ad8\uff01<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bf4\u660e\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">CPU\u5927\u90e8\u5206\u65f6\u95f4\u5728\u7b49\u78c1\u76d8\u54cd\u5e94\uff08\u4f8b\u5982\u6570\u636e\u5e93\u8bfb\u5199\u3001\u65e5\u5fd7\u5199\u5165\u3001NFS\u3001\u865a\u62df\u78c1\u76d8\u5ef6\u8fdf\u7b49\uff09\u3002<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">3\uff09<code>%idle<\/code><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CPU\u771f\u6b63\u7a7a\u95f2\u7684\u6bd4\u4f8b\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c <code>%idle<\/code> \u5f88\u4f4e (&lt;10%) \u4e14 <code>%user\/%system<\/code> \u9ad8 \u2192 CPU\u8ba1\u7b97\u538b\u529b\u5927\uff1b<\/li>\n\n\n\n<li>\u5982\u679c <code>%idle<\/code> \u9ad8\u4f46 <code>%iowait<\/code> \u4e5f\u9ad8 \u2192 <strong>CPU\u672c\u8eab\u95f2\u7740\uff0c\u4f46\u88abI\/O\u62d6\u6162<\/strong>\uff1b<\/li>\n\n\n\n<li>\u8fd9\u91cc\u60c5\u51b5\uff1a<code>idle 50.69% + iowait 46.92%<\/code> \u5178\u578b\u7684 <strong>I\/O\u74f6\u9888\u5bfc\u81f4CPU\u7a7a\u7b49<\/strong>\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">4\uff09 <code>%steal<\/code><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u662f\u865a\u62df\u673a\u4e0a\u8fd0\u884c\uff08\u5982 KVM\u3001VMware\uff09\uff0c\u8be5\u503c &gt;0 \u8868\u793a\u5bbf\u4e3b\u673aCPU\u8d44\u6e90\u88ab\u5176\u4ed6\u865a\u673a\u62a2\u5360\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b9e\u673a\u901a\u5e38\u4e3a 0\uff1b<\/li>\n\n\n\n<li>\u82e5 &gt;10%\uff0c\u8bf4\u660e\u865a\u62df\u5316\u5c42\u7ade\u4e89\u4e25\u91cd\uff1b<\/li>\n\n\n\n<li>\u8fd9\u91cc\u662f 0 \u2192 \u65e0\u865a\u62df\u5316\u95ee\u9898\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5982\u4f55\u5feb\u901f\u5224\u65ad\u74f6\u9888\u7c7b\u578b<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u573a\u666f<\/th><th>\u5178\u578b\u7279\u5f81<\/th><th>\u7ed3\u8bba<\/th><\/tr><\/thead><tbody><tr><td><code>%user<\/code> \u9ad8<\/td><td>\u5e94\u7528\u8ba1\u7b97\u5bc6\u96c6\u578b<\/td><td>CPU\u74f6\u9888<\/td><\/tr><tr><td><code>%system<\/code> \u9ad8<\/td><td>\u5185\u6838\u8c03\u5ea6\u6216\u7cfb\u7edf\u8c03\u7528\u9891\u7e41<\/td><td>\u53ef\u80fd\u662f\u7f51\u7edc\/\u5185\u6838\u8c03\u7528\u74f6\u9888<\/td><\/tr><tr><td><code>%iowait<\/code> \u9ad8<\/td><td>CPU\u7a7a\u7b49\u78c1\u76d8I\/O<\/td><td>\u78c1\u76d8\u6216\u5b58\u50a8\u74f6\u9888<\/td><\/tr><tr><td><code>%idle<\/code> \u9ad8\u4f46\u7cfb\u7edf\u6162<\/td><td>\u5927\u91cfI\/O\u7b49\u5f85<\/td><td>I\/O\u5ef6\u8fdf\u9ad8\u5bfc\u81f4\u5e94\u7528\u54cd\u5e94\u6162<\/td><\/tr><tr><td><code>%steal<\/code> \u9ad8<\/td><td>\u865a\u62df\u5316CPU\u7ade\u4e89<\/td><td>\u5bbf\u4e3b\u673a\u8d44\u6e90\u4e0d\u8db3<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u547d\u4ee4\u8865\u5145<\/strong><\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><pre class=\"shiki light-plus\" style=\"background-color: #FFFFFF\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #008000\"># 1. \u5b9e\u65f6\u67e5\u770bCPU\u5404\u72b6\u6001\u5206\u5e03<\/span><\/span>\n<span class=\"line\"><span style=\"color: #795E26\">mpstat<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #098658\">1<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #008000\"># 2. \u67e5\u770b\u5177\u4f53\u8fdb\u7a0b\u7684I\/O\u7b49\u5f85\u60c5\u51b5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #795E26\">pidstat<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #0000FF\">-d<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #098658\">1<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #008000\"># 3. \u67e5\u770b\u8c01\u5bfc\u81f4\u9ad8 iowait<\/span><\/span>\n<span class=\"line\"><span style=\"color: #795E26\">iotop<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #0000FF\">-aoP<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"412_Device%E8%AF%A5%E8%A1%8C%E8%BE%93%E5%87%BA%E5%90%AB%E4%B9%89\"><\/span>4.1.2 Device\u8be5\u884c\u8f93\u51fa\u542b\u4e49<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><code>Device<\/code> \u8fd9\u4e00\u884c\u662f <code>iostat -x<\/code> \u547d\u4ee4\uff08\u6216\u7c7b\u4f3c\u5de5\u5177\u5982 <code>sar -d<\/code>\uff09\u8f93\u51fa\u7684\u6838\u5fc3\u90e8\u5206\uff0c\u7528\u6765\u5c55\u793a\u5404\u4e2a\u78c1\u76d8\u6216\u903b\u8f91\u5377\u7684\u8be6\u7ec6 I\/O \u6027\u80fd\u6307\u6807<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><pre class=\"shiki light-plus\" style=\"background-color: #FFFFFF\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #795E26\">Device:<\/span><span style=\"color: #000000\">    <\/span><span style=\"color: #A31515\">rrqm\/s<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">wrqm\/s<\/span><span style=\"color: #000000\">  <\/span><span style=\"color: #A31515\">r\/s<\/span><span style=\"color: #000000\">  <\/span><span style=\"color: #A31515\">w\/s<\/span><span style=\"color: #000000\">   <\/span><span style=\"color: #A31515\">rkB\/s<\/span><span style=\"color: #000000\">  <\/span><span style=\"color: #A31515\">wkB\/s<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">avgrq-sz<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">avgqu-sz<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">await<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">r_await<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">w_await<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">svctm<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">%util<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5b57\u6bb5\u8be6\u89e3<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5b57\u6bb5<\/th><th>\u542b\u4e49<\/th><th>\u89e3\u91ca\u8bf4\u660e<\/th><th>\u5173\u952e\u5224\u65ad<\/th><\/tr><\/thead><tbody><tr><td>Device<\/td><td>\u8bbe\u5907\u540d\u79f0<\/td><td>\u5982 <code>sda<\/code>, <code>sdb<\/code>, <code>dm-0<\/code>\uff08\u903b\u8f91\u5377\uff09\u7b49<\/td><td>\u7528\u4e8e\u533a\u5206\u4e0d\u540c\u7269\u7406\/\u903b\u8f91\u8bbe\u5907<\/td><\/tr><tr><td>rrqm\/s<\/td><td>\u6bcf\u79d2\u5408\u5e76\u7684\u8bfb\u8bf7\u6c42\u6570<\/td><td>\u5f53\u591a\u4e2a\u76f8\u90bb\u7684\u8bfb\u8bf7\u6c42\u88ab\u5185\u6838\u5408\u5e76\u4e3a\u4e00\u4e2a\u65f6\u8ba1\u6570<\/td><td>\u9ad8\u503c\u8868\u793a\u8bfb\u8bf7\u6c42\u8f83\u96c6\u4e2d<\/td><\/tr><tr><td>wrqm\/s<\/td><td>\u6bcf\u79d2\u5408\u5e76\u7684\u5199\u8bf7\u6c42\u6570<\/td><td>\u540c\u4e0a\uff0c\u7528\u4e8e\u5199\u64cd\u4f5c<\/td><td>\u9ad8\u503c\u8868\u793a\u5199\u8bf7\u6c42\u8f83\u96c6\u4e2d<\/td><\/tr><tr><td>r\/s<\/td><td>\u6bcf\u79d2\u53d1\u9001\u5230\u8bbe\u5907\u7684\u8bfb\u8bf7\u6c42\u6570<\/td><td>\u6bcf\u79d2\u78c1\u76d8\u8bfb I\/O \u6b21\u6570\uff08IOPS\uff09<\/td><td>\u8d8a\u9ad8\u8bf4\u660e\u8bfb\u8d1f\u8f7d\u91cd<\/td><\/tr><tr><td>w\/s<\/td><td>\u6bcf\u79d2\u53d1\u9001\u5230\u8bbe\u5907\u7684\u5199\u8bf7\u6c42\u6570<\/td><td>\u6bcf\u79d2\u78c1\u76d8\u5199 I\/O \u6b21\u6570<\/td><td>\u8d8a\u9ad8\u8bf4\u660e\u5199\u8d1f\u8f7d\u91cd<\/td><\/tr><tr><td>rkB\/s<\/td><td>\u6bcf\u79d2\u8bfb\u51fa\u7684\u6570\u636e\u91cf\uff08KB\uff09<\/td><td>\u8868\u793a\u8bfb\u541e\u5410\u91cf<\/td><td>\u53cd\u6620\u8bfb\u901f\u7387\uff08KB\/s\uff09<\/td><\/tr><tr><td>wkB\/s<\/td><td>\u6bcf\u79d2\u5199\u5165\u7684\u6570\u636e\u91cf\uff08KB\uff09<\/td><td>\u8868\u793a\u5199\u541e\u5410\u91cf<\/td><td>\u53cd\u6620\u5199\u901f\u7387\uff08KB\/s\uff09<\/td><\/tr><tr><td>avgrq-sz<\/td><td>\u5e73\u5747\u6bcf\u4e2aI\/O\u8bf7\u6c42\u7684\u5927\u5c0f\uff08\u6247\u533a\u6570\u6216KB\uff09<\/td><td>\u8bf7\u6c42\u8d8a\u5927\uff0c\u8868\u793a\u987a\u5e8fI\/O\uff1b\u8d8a\u5c0f\u8868\u793a\u968f\u673aI\/O<\/td><td>\u5c0f\u503c=\u968f\u673aI\/O\uff0c\u591a\u4e3a\u6570\u636e\u5e93\u7c7b\u578b\u8d1f\u8f7d<\/td><\/tr><tr><td>avgqu-sz<\/td><td>\u5e73\u5747\u8bf7\u6c42\u961f\u5217\u957f\u5ea6<\/td><td>\u8868\u793a\u78c1\u76d8\u4e0a\u7b49\u5f85\u5904\u7406\u7684I\/O\u8bf7\u6c42\u6570<\/td><td>&gt;1 \u8868\u793aI\/O\u6392\u961f\u4e25\u91cd<\/td><\/tr><tr><td>await<\/td><td>\u6bcf\u4e2aI\/O\u5e73\u5747\u7b49\u5f85\u65f6\u95f4\uff08ms\uff09<\/td><td>\u5305\u62ec\u6392\u961f\u65f6\u95f4 + \u670d\u52a1\u65f6\u95f4<\/td><td>&gt;20ms \u8bf4\u660e\u78c1\u76d8\u5ef6\u8fdf\u660e\u663e<\/td><\/tr><tr><td>r_await<\/td><td>\u8bfb\u8bf7\u6c42\u5e73\u5747\u7b49\u5f85\u65f6\u95f4\uff08ms\uff09<\/td><td>\u5355\u72ec\u7684\u8bfb\u8bf7\u6c42\u54cd\u5e94\u5ef6\u8fdf<\/td><td>\u5bf9\u8bfb\u64cd\u4f5c\u5206\u6790\u6709\u7528<\/td><\/tr><tr><td>w_await<\/td><td>\u5199\u8bf7\u6c42\u5e73\u5747\u7b49\u5f85\u65f6\u95f4\uff08ms\uff09<\/td><td>\u5355\u72ec\u7684\u5199\u8bf7\u6c42\u54cd\u5e94\u5ef6\u8fdf<\/td><td>\u5bf9\u5199\u64cd\u4f5c\u5206\u6790\u6709\u7528<\/td><\/tr><tr><td>svctm<\/td><td>\u5e73\u5747\u670d\u52a1\u65f6\u95f4\uff08ms\uff09<\/td><td>\u6bcf\u4e2aI\/O\u5b8c\u6210\u6240\u9700\u65f6\u95f4\uff0c\u4e0d\u542b\u6392\u961f<\/td><td>\u2248 <code>await<\/code> \u8868\u793a\u961f\u5217\u4e0d\u957f\uff1b\u8fdc\u5c0f\u4e8e <code>await<\/code> \u8868\u793a\u6392\u961f\u4e25\u91cd<\/td><\/tr><tr><td>%util<\/td><td>\u8bbe\u5907\u5229\u7528\u7387<\/td><td>\u8868\u793a\u8be5\u8bbe\u5907\u6bcf\u79d2\u4e2d\u6709\u591a\u5c11\u65f6\u95f4\u5728\u5fd9<\/td><td>\u63a5\u8fd1100%\u8bf4\u660e\u78c1\u76d8\u5df2\u6ee1\u8f7d<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4e3e\u4f8b\u8bf4\u660e<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Device: rrqm\/s wrqm\/s r\/s w\/s rkB\/s wkB\/s avgrq-sz avgqu-sz await r_await w_await svctm %util<br>sdb 6.00 0.00 49 14 2208 80.00 72.63 11.95 49.76 48.59 53.86 15.87 100.00<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u6790\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6307\u6807<\/th><th>\u503c<\/th><\/tr><\/thead><tbody><tr><td><strong>r\/s=49, w\/s=14<\/strong><\/td><td>\u6bcf\u79d2\u8bfb49\u6b21\uff0c\u519914\u6b21<\/td><\/tr><tr><td><strong>rkB\/s=2208<\/strong><\/td><td>\u6bcf\u79d2\u8bfb2.2MB\u6570\u636e<\/td><\/tr><tr><td><strong>wkB\/s=80<\/strong><\/td><td>\u6bcf\u79d2\u519980KB\u6570\u636e\uff08\u8bfb\u8fdc\u591a\u4e8e\u5199\uff09<\/td><\/tr><tr><td><strong>avgrq-sz=72.63<\/strong><\/td><td>\u6bcf\u6b21I\/O\u8bf7\u6c42\u7ea672KB\uff08\u4e2d\u7b49\u504f\u5c0f\uff0c\u7565\u968f\u673a\uff09<\/td><\/tr><tr><td><strong>avgqu-sz=11.95<\/strong><\/td><td>\u5e73\u5747\u670912\u4e2a\u8bf7\u6c42\u5728\u6392\u961f\uff08\u975e\u5e38\u9ad8\uff09<\/td><\/tr><tr><td><strong>await=49.76ms<\/strong><\/td><td>\u5e73\u5747\u6bcf\u4e2aI\/O\u9700\u7b49\u5f85\u7ea650ms\uff08\u5f88\u6162\uff09<\/td><\/tr><tr><td><strong>svctm=15.87ms<\/strong><\/td><td>\u771f\u6b63\u670d\u52a1\u65f6\u95f4\u7ea615ms\uff0c\u8bf4\u660e\u8fd8\u6709\u7ea635ms\u5728\u6392\u961f<\/td><\/tr><tr><td><strong>%util=100%<\/strong><\/td><td>\u78c1\u76d8100%\u5fd9\u788c\uff0c\u74f6\u9888\u660e\u663e<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5173\u952e\u6307\u6807\u5224\u65ad<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6307\u6807<\/th><th>\u6b63\u5e38\u8303\u56f4<\/th><th>\u5f02\u5e38\u5224\u65ad<\/th><\/tr><\/thead><tbody><tr><td><code>%util<\/code><\/td><td>&lt; 70%<\/td><td>\u226590% \u2192 \u78c1\u76d8\u8fc7\u8f7d<\/td><\/tr><tr><td><code>await<\/code><\/td><td>&lt; 10ms\uff08SSD\uff09&lt; 30ms\uff08HDD\uff09<\/td><td>&gt; 50ms \u2192 \u4e25\u91cd\u5ef6\u8fdf<\/td><\/tr><tr><td><code>avgqu-sz<\/code><\/td><td>&lt; 1<\/td><td>&gt; 2 \u2192 \u6709\u660e\u663e\u6392\u961f<\/td><\/tr><tr><td><code>avgrq-sz<\/code><\/td><td>128KB+ \u2192 \u987a\u5e8fI\/O<\/td><td>&lt; 64KB \u2192 \u968f\u673aI\/O\uff0c\u591a\u7ebf\u7a0b\u6570\u636e\u5e93\u6216\u865a\u62df\u5316\u8d1f\u8f7d<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8f85\u52a9\u7406\u89e3\u5173\u7cfb\u56fe<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"257\" height=\"402\" data-src=\"https:\/\/www.dataz8.com\/wp-content\/uploads\/2025\/10\/iostat-device\u8f85\u52a9\u7406\u89e3\u5173\u7cfb.png?v=1761405362\" alt=\"\" class=\"wp-image-1783 lazyload\" data-srcset=\"https:\/\/www.dataz8.com\/wp-content\/uploads\/2025\/10\/iostat-device\u8f85\u52a9\u7406\u89e3\u5173\u7cfb.png?v=1761405362 257w, https:\/\/www.dataz8.com\/wp-content\/uploads\/2025\/10\/iostat-device\u8f85\u52a9\u7406\u89e3\u5173\u7cfb-192x300.png?v=1761405362 192w\" data-sizes=\"(max-width: 257px) 100vw, 257px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 257px; --smush-placeholder-aspect-ratio: 257\/402;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5c0f\u7ed3<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5206\u7c7b<\/th><th>\u5b57\u6bb5<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u8bf7\u6c42\u901f\u7387<\/td><td>r\/s, w\/s<\/td><td>\u6bcf\u79d2\u8bfb\u5199\u6b21\u6570<\/td><\/tr><tr><td>\u541e\u5410\u91cf<\/td><td>rkB\/s, wkB\/s<\/td><td>\u6bcf\u79d2\u4f20\u8f93\u6570\u636e\u91cf<\/td><\/tr><tr><td>\u8bf7\u6c42\u7279\u6027<\/td><td>avgrq-sz<\/td><td>\u6bcf\u6b21I\/O\u5927\u5c0f\uff08\u987a\u5e8f or \u968f\u673a\uff09<\/td><\/tr><tr><td>\u6392\u961f\u60c5\u51b5<\/td><td>avgqu-sz<\/td><td>\u5e73\u5747\u7b49\u5f85\u961f\u5217\u957f\u5ea6<\/td><\/tr><tr><td>\u5ef6\u8fdf<\/td><td>await, r_await, w_await<\/td><td>\u5e73\u5747I\/O\u54cd\u5e94\u65f6\u95f4<\/td><\/tr><tr><td>\u8bbe\u5907\u5fd9\u788c\u5ea6<\/td><td>%util<\/td><td>\u78c1\u76d8\u4f7f\u7528\u7387\uff08\u63a5\u8fd1100%\u8868\u793a\u74f6\u9888\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"42_top%E8%BE%93%E5%87%BA\"><\/span>4.2 top\u8f93\u51fa<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>top<\/code> \u547d\u4ee4\u7684\u7b2c\u4e00\u884c\uff08\u7cfb\u7edf\u603b\u4f53\u72b6\u6001\uff09\u662f\u7cfb\u7edf\u6027\u80fd\u5206\u6790\u4e2d\u6700\u6838\u5fc3\u7684\u4e00\u884c \uff1a<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><pre class=\"shiki light-plus\" style=\"background-color: #FFFFFF\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #795E26\">top<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">-<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #098658\">14<\/span><span style=\"color: #A31515\">:46:15<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">up<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #098658\">481<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">days,<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #098658\">18<\/span><span style=\"color: #A31515\">:18,<\/span><span style=\"color: #000000\">  <\/span><span style=\"color: #098658\">1<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">user,<\/span><span style=\"color: #000000\">  <\/span><span style=\"color: #A31515\">load<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">average:<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #098658\">61.45<\/span><span style=\"color: #A31515\">,<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #098658\">58.41<\/span><span style=\"color: #A31515\">,<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #098658\">45.99<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u683c\u5f0f\u8bf4\u660e<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><code>top<\/code>\u7b2c\u4e00\u884c\u7684\u5178\u578b\u683c\u5f0f\u4e3a\uff1a<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><pre class=\"shiki light-plus\" style=\"background-color: #FFFFFF\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #795E26\">top<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">-<\/span><span style=\"color: #000000\"> &lt;<\/span><span style=\"color: #A31515\">\u65f6<\/span><span style=\"color: #000000\">\u95f4&gt; <\/span><span style=\"color: #A31515\">up<\/span><span style=\"color: #000000\"> &lt;<\/span><span style=\"color: #A31515\">\u8fd0\u884c\u65f6<\/span><span style=\"color: #000000\">\u957f&gt;<\/span><span style=\"color: #A31515\">,<\/span><span style=\"color: #000000\"> &lt;<\/span><span style=\"color: #A31515\">\u767b\u5f55\u7528\u6237<\/span><span style=\"color: #000000\">\u6570&gt; <\/span><span style=\"color: #A31515\">users,<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">load<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">average:<\/span><span style=\"color: #000000\"> &lt;<\/span><span style=\"color: #A31515\">1\u5206<\/span><span style=\"color: #000000\">\u949f&gt;<\/span><span style=\"color: #A31515\">,<\/span><span style=\"color: #000000\"> &lt;<\/span><span style=\"color: #A31515\">5\u5206<\/span><span style=\"color: #000000\">\u949f&gt;<\/span><span style=\"color: #A31515\">,<\/span><span style=\"color: #000000\"> &lt;<\/span><span style=\"color: #A31515\">15\u5206<\/span><span style=\"color: #000000\">\u949f&gt;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5b57\u6bb5\u8be6\u89e3<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5b57\u6bb5<\/th><th>\u793a\u4f8b\u503c<\/th><th>\u542b\u4e49<\/th><\/tr><\/thead><tbody><tr><td><strong>top &#8211; 14:46:15<\/strong><\/td><td>\u5f53\u524d\u7cfb\u7edf\u65f6\u95f4<\/td><td>\u8868\u793a <code>top<\/code> \u8f93\u51fa\u65f6\u7684\u7cfb\u7edf\u672c\u5730\u65f6\u95f4<\/td><\/tr><tr><td><strong>up 481 days, 18:18<\/strong><\/td><td>\u7cfb\u7edf\u5df2\u8fd0\u884c481\u592918\u5c0f\u65f618\u5206<\/td><td>\u8868\u793a\u7cfb\u7edf\u81ea\u4e0a\u6b21\u91cd\u542f\u4ee5\u6765\u7684\u6301\u7eed\u8fd0\u884c\u65f6\u95f4\uff08uptime\uff09<\/td><\/tr><tr><td><strong>1 user<\/strong><\/td><td>\u5f53\u524d\u767b\u5f55\u7cfb\u7edf\u7684\u7528\u6237\u6570<\/td><td>\u4e00\u822c\u5305\u62ec\u7ec8\u7aef\u6216SSH\u767b\u5f55\u7684\u4f1a\u8bdd\u6570<\/td><\/tr><tr><td><strong>load average: 61.45, 58.41, 45.99<\/strong><\/td><td>\u7cfb\u7edf\u8d1f\u8f7d\u5747\u503c<\/td><td>\u5206\u522b\u8868\u793a\u8fc7\u53bb <strong>1\u5206\u949f\u30015\u5206\u949f\u300115\u5206\u949f<\/strong> \u7684\u5e73\u5747\u8d1f\u8f7d<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u91cd\u70b9\uff1a<code>load average<\/code>\u542b\u4e49\u8be6\u89e3<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u662f\u6700\u5173\u952e\u7684\u90e8\u5206\u4e4b\u4e00\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\uff09\u542b\u4e49<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><code>load average<\/code> \u8868\u793a <strong>\u5904\u4e8e\u201c\u53ef\u8fd0\u884c\u201d\u6216\u201c\u4e0d\u53ef\u4e2d\u65ad\uff08D\u72b6\u6001\uff09\u201d\u72b6\u6001\u7684\u8fdb\u7a0b\u5e73\u5747\u6570<\/strong>\u3002 \u7b80\u5355\u6765\u8bf4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b83\u53cd\u6620\u4e86\u7cfb\u7edf\u4efb\u52a1\u961f\u5217\u7684\u62e5\u5835\u7a0b\u5ea6\uff1b<\/li>\n\n\n\n<li>\u5305\u62ec\u6b63\u5728\u8fd0\u884c\u7684\u4efb\u52a1 + \u6b63\u5728\u7b49\u5f85 CPU \u6216 I\/O \u7684\u4efb\u52a1\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u26a0\ufe0f \u6ce8\u610f\uff1a\u5b83<strong>\u4e0d\u662f CPU \u4f7f\u7528\u7387<\/strong>\uff0c\u800c\u662f\u201c\u6392\u961f\u957f\u5ea6\u201d\u3002<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">2\uff09\u5224\u65ad\u6807\u51c6\uff08\u4e0eCPU\u6838\u5fc3\u6570\u76f8\u5173\uff09<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>CPU\u6838\u5fc3\u6570<\/th><th>\u5408\u7406\u8d1f\u8f7d\u4e0a\u9650<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>1\u6838<\/td><td>\u22481.0<\/td><td>\u8868\u793a\u521a\u597d\u6ee1\u8d1f\u8377\u8fd0\u884c<\/td><\/tr><tr><td>4\u6838<\/td><td>\u22484.0<\/td><td>\u8d85\u8fc74\u8868\u793a\u6392\u961f\u4e86<\/td><\/tr><tr><td>8\u6838<\/td><td>\u22488.0<\/td><td>\u8d85\u8fc78\u8868\u793a\u7cfb\u7edf\u7e41\u5fd9<\/td><\/tr><tr><td>32\u6838<\/td><td>\u224832.0<\/td><td>\u8d85\u8fc732\u8bf4\u660e\u5b58\u5728I\/O\u7b49\u5f85\u6216\u7ebf\u7a0b\u62e5\u5835<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u6b64\u8981\u7ed3\u5408CPU\u6838\u5fc3\u6570\u8fdb\u884c\u5206\u6790\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3\uff09\u8be5\u622a\u56fe\u4e0a\u60c5\u51b5\uff1a<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><pre class=\"shiki light-plus\" style=\"background-color: #FFFFFF\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #795E26\">load<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #A31515\">average:<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #098658\">61.45<\/span><span style=\"color: #A31515\">,<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #098658\">58.41<\/span><span style=\"color: #A31515\">,<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #098658\">45.99<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u8868\u793a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8fc7\u53bb1\u5206\u949f\u5e73\u5747\u6709 <strong>61.45\u4e2a\u4efb\u52a1<\/strong> \u540c\u65f6\u5728\u8fd0\u884c\u6216\u7b49\u5f85\uff1b<\/li>\n\n\n\n<li>\u8fc7\u53bb5\u5206\u949f\u7ea658\uff1b<\/li>\n\n\n\n<li>\u8fc7\u53bb15\u5206\u949f\u7ea646\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ed3\u8bba\uff1a\u7cfb\u7edf\u957f\u65f6\u95f4\u5904\u4e8e\u4e25\u91cd\u8fc7\u8f7d\u72b6\u6001<\/strong> \u2014 \u5373\u5927\u91cf\u4efb\u52a1\u5728\u7b49\u5f85\u8d44\u6e90\uff08CPU\u6216I\/O\uff09\u3002 \u7ed3\u5408\u524d\u9762\u53d1\u7684 <code>iostat<\/code> \u622a\u56fe\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><code>%iowait<\/code> \u9ad8\u8fbe 46.9%\uff0c\u78c1\u76d8 <code>sdb<\/code> \u5229\u7528\u7387 100%\u3002<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u6240\u4ee5\u6b64\u65f6\u7684\u9ad8 <code>load average<\/code> \u662f\u7531 <strong>\u78c1\u76d8 I\/O \u5835\u585e<\/strong> \u5f15\u8d77\u7684\uff0c\u800c\u975e CPU \u9971\u548c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u6574\u4f53\u89e3\u91ca\u603b\u7ed3<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5b57\u6bb5<\/th><th>\u542b\u4e49<\/th><th>\u5f53\u524d\u60c5\u51b5<\/th><\/tr><\/thead><tbody><tr><td>\u65f6\u95f4 (<code>14:46:15<\/code>)<\/td><td>\u5f53\u524d\u7cfb\u7edf\u65f6\u95f4<\/td><td>\u6b63\u5e38<\/td><\/tr><tr><td>up (<code>481 days, 18:18<\/code>)<\/td><td>\u7cfb\u7edf\u8fd0\u884c\u65f6\u957f<\/td><td>\u7cfb\u7edf\u975e\u5e38\u7a33\u5b9a\uff08\u8fd11.5\u5e74\u672a\u91cd\u542f\uff09<\/td><\/tr><tr><td>user (<code>1 user<\/code>)<\/td><td>\u767b\u5f55\u7528\u6237\u6570<\/td><td>\u6b63\u5e38<\/td><\/tr><tr><td>load average (<code>61.45, 58.41, 45.99<\/code>)<\/td><td>\u7cfb\u7edf\u8d1f\u8f7d\u5e73\u5747\u503c<\/td><td>\u26a0\ufe0f \u6781\u9ad8\uff0c\u7cfb\u7edf\u963b\u585e\u4e25\u91cd<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5ef6\u4f38\u5206\u6790\uff1aload\u9ad8\u7684\u539f\u56e0\u5206\u7c7b<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u539f\u56e0\u7c7b\u578b<\/th><th>\u5178\u578b\u8868\u73b0<\/th><th>\u9a8c\u8bc1\u547d\u4ee4<\/th><\/tr><\/thead><tbody><tr><td><strong>CPU\u8fc7\u8f7d<\/strong><\/td><td><code>%us<\/code> \u548c <code>%sy<\/code> \u9ad8<\/td><td><code>top<\/code>\u3001<code>mpstat<\/code><\/td><\/tr><tr><td><strong>I\/O\u7b49\u5f85\u8fc7\u591a<\/strong><\/td><td><code>%wa<\/code> \u9ad8\uff0c<code>iostat<\/code> %util\u2248100%<\/td><td><code>iostat -x 1<\/code><\/td><\/tr><tr><td><strong>\u5185\u5b58\u4e0d\u8db3<\/strong><\/td><td>\u5927\u91cfswap\uff0cload\u7f13\u6162\u4e0a\u5347<\/td><td><code>vmstat 1<\/code><\/td><\/tr><tr><td><strong>\u50f5\u5c38\u6216\u963b\u585e\u7ebf\u7a0b<\/strong><\/td><td>\u8fdb\u7a0bD\u72b6\u6001\uff08\u4e0d\u53ef\u4e2d\u65ad\uff09\u591a<\/td><td><code>ps -eo pid,ppid,stat,cmd |grep ' Z'<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>1. \u4e8b\u4ef6\u7b80\u8ff0 \u6709\u4e00\u53f0\u670d\u52a1\u5668\uff0c\u53d1\u73b0\u957f\u65f6\u95f4\u7cfb\u7edf\u8d1f\u8f7d\u5f88\u9ad8\uff0c\u4e14\u7cfb\u7edf &#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_zb_attr":"","zolo_post_video_link":"","footnotes":""},"categories":[12],"tags":[],"series":[],"class_list":["post-1773","post","type-post","status-publish","format-standard","hentry","category-12"],"_links":{"self":[{"href":"https:\/\/www.dataz8.com\/index.php?rest_route=\/wp\/v2\/posts\/1773","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dataz8.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dataz8.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dataz8.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dataz8.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1773"}],"version-history":[{"count":6,"href":"https:\/\/www.dataz8.com\/index.php?rest_route=\/wp\/v2\/posts\/1773\/revisions"}],"predecessor-version":[{"id":1787,"href":"https:\/\/www.dataz8.com\/index.php?rest_route=\/wp\/v2\/posts\/1773\/revisions\/1787"}],"wp:attachment":[{"href":"https:\/\/www.dataz8.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1773"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dataz8.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1773"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dataz8.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1773"},{"taxonomy":"series","embeddable":true,"href":"https:\/\/www.dataz8.com\/index.php?rest_route=%2Fwp%2Fv2%2Fseries&post=1773"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}