{"id":313,"date":"2023-11-23T10:24:00","date_gmt":"2023-11-23T02:24:00","guid":{"rendered":"https:\/\/www.liaoxinghui.com\/?p=313"},"modified":"2023-11-23T10:24:01","modified_gmt":"2023-11-23T02:24:01","slug":"iostat","status":"publish","type":"post","link":"https:\/\/www.liaoxinghui.com\/?p=313","title":{"rendered":"\u5229\u7528iostat\u67e5\u770b\u670d\u52a1\u5668IO\u72b6\u51b5"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><code>iostat<\/code> \u662f\u4e00\u4e2a\u7528\u4e8e\u76d1\u6d4b\u7cfb\u7edf\u8f93\u5165\u8f93\u51fa\u8bbe\u5907\u548cCPU\u4f7f\u7528\u60c5\u51b5\u7684\u7edf\u8ba1\u5de5\u5177\u3002\u5b83\u662f\u5927\u591a\u6570\u7c7bUnix\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u7684\u6807\u51c6\u5de5\u5177\uff0c\u5305\u62ecLinux\u3002<code>iostat<\/code> \u53ef\u4ee5\u663e\u793a\u5173\u4e8e\u786c\u76d8\u3001\u5206\u533a\u3001NFS\u3001\u5149\u76d8\u7b49\u7684\u7edf\u8ba1\u4fe1\u606f\uff0c\u4ee5\u53caCPU\u7684\u4f7f\u7528\u60c5\u51b5\u3002<\/p>\n<p class=\"wp-block-paragraph\"><code>iostat<\/code> \u547d\u4ee4\u901a\u5e38\u7528\u4e8e\u68c0\u6d4b\u78c1\u76d8I\/O\u6027\u80fd\u95ee\u9898\u548cCPU\u6027\u80fd\u95ee\u9898\u3002\u901a\u8fc7\u5206\u6790<code>iostat<\/code>\u63d0\u4f9b\u7684\u6570\u636e\uff0c\u7ba1\u7406\u5458\u53ef\u4ee5\u4e86\u89e3\u7cfb\u7edf\u4e2d\u7684\u54ea\u4e9b\u90e8\u5206\u53ef\u80fd\u6210\u4e3a\u74f6\u9888\uff0c\u4ece\u800c\u91c7\u53d6\u76f8\u5e94\u7684\u4f18\u5316\u63aa\u65bd\u3002<\/p>\n<p class=\"wp-block-paragraph\">\u5728CentOS 7\u4e0a\u5b89\u88c5<code>iostat<\/code>\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528<code>yum<\/code>\u5305\u7ba1\u7406\u5668\uff0c\u56e0\u4e3a<code>iostat<\/code>\u5305\u542b\u5728<code>sysstat<\/code>\u5305\u4e2d\u3002\u8bf7\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u64cd\u4f5c\uff1a<\/p>\n<ol class=\"wp-block-list\">\n<li>\u6253\u5f00\u7ec8\u7aef\u3002<\/li>\n\n<li>\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\u6765\u5b89\u88c5<code>sysstat<\/code>\u5305\uff1a<\/li>\n<\/ol>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   sudo yum install sysstat<\/pre>\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u5982\u679c\u7cfb\u7edf\u63d0\u793a\u786e\u8ba4\u5b89\u88c5\uff0c\u8bf7\u6309<code>y<\/code>\u952e\u3002<\/li>\n\n<li>\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7\u8f93\u5165<code>iostat<\/code>\u6765\u8fd0\u884c\u5b83\u3002<\/li>\n<\/ol>\n<p class=\"wp-block-paragraph\">\u8bf7\u786e\u4fdd\u7528\u6237\u8d26\u6237\u6709\u4f7f\u7528<code>sudo<\/code>\u7684\u6743\u9650<\/p>\n<p class=\"wp-block-paragraph\"><\/p>\n<p class=\"wp-block-paragraph\"><code>iostat<\/code>\u547d\u4ee4\u63d0\u4f9b\u4e86\u591a\u79cd\u53c2\u6570\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u6839\u636e\u9700\u8981\u5b9a\u5236\u8f93\u51fa\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u53c2\u6570\uff1a<\/p>\n<ul class=\"wp-block-list\">\n<li><code>-c<\/code>\uff1a\u4ec5\u663e\u793aCPU\u4f7f\u7528\u60c5\u51b5\u7edf\u8ba1\u3002<\/li>\n\n<li><code>-d<\/code>\uff1a\u4ec5\u663e\u793a\u78c1\u76d8I\/O\u7edf\u8ba1\u3002<\/li>\n\n<li><code>-x<\/code>\uff1a\u663e\u793a\u6269\u5c55\u7684\u78c1\u76d8I\/O\u7edf\u8ba1\u3002<\/li>\n\n<li><code>-m<\/code>\uff1a\u4ee5MB\u4e3a\u5355\u4f4d\u663e\u793a\u6240\u6709\u7684\u5757\u8bbe\u5907\uff08\u78c1\u76d8\uff09\u7684I\/O\u7edf\u8ba1\u3002<\/li>\n\n<li><code>-p [\u8bbe\u5907]<\/code>\uff1a\u663e\u793a\u6307\u5b9a\u5206\u533a\u6216\u5168\u90e8\u5206\u533a\u7684\u7edf\u8ba1\u4fe1\u606f\u3002<\/li>\n\n<li><code>-t<\/code>\uff1a\u5728\u62a5\u544a\u4e2d\u5305\u542b\u65f6\u95f4\u6233\u4fe1\u606f\u3002<\/li>\n\n<li><code>-k<\/code>\uff1a\u4ee5\u5343\u5b57\u8282\u4e3a\u5355\u4f4d\u663e\u793a\u6570\u636e\uff0c\u800c\u4e0d\u662f\u9ed8\u8ba4\u7684\u6247\u533a\u3002<\/li>\n\n<li><code>-z<\/code>\uff1a\u7701\u7565\u6240\u6709\u4e3a\u96f6\u7684\u8f93\u51fa\u884c\uff0c\u53ea\u663e\u793a\u6d3b\u52a8\u7684\u8bbe\u5907\u3002<\/li>\n\n<li><code>-j ID<\/code>\uff1a\u663e\u793a\u6307\u5b9a\u7684\u78c1\u76d8\u7ec4\u7684\u7edf\u8ba1\u4fe1\u606f\uff0c\u4f8b\u5982<code>-j ID,sda<\/code>\u3002<\/li>\n<\/ul>\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u53ef\u4ee5\u7ec4\u5408\u4f7f\u7528\u8fd9\u4e9b\u53c2\u6570\u6765\u5b9a\u5236\u8f93\u51fa\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u6ee1\u8db3\u76d1\u63a7\u9700\u6c42\u3002\u4f8b\u5982\uff1a<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">iostat -dxmt 1 5<\/pre>\n<p class=\"wp-block-paragraph\">\u8fd9\u4e2a\u547d\u4ee4\u5c06\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u8be6\u7ec6\u7684\u78c1\u76d8I\/O\u7edf\u8ba1\u4fe1\u606f\uff08<code>-dx<\/code>\uff09\uff0c\u5305\u62ec\u65f6\u95f4\u6233\uff08<code>-t<\/code>\uff09\uff0c\u4ee5MB\u4e3a\u5355\u4f4d\uff08<code>-m<\/code>\uff09\uff0c\u6bcf1\u79d2\u66f4\u65b0\u4e00\u6b21\uff0c\u603b\u5171\u663e\u793a5\u6b21\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n<p class=\"wp-block-paragraph\"><\/p>\n<p class=\"wp-block-paragraph\"><\/p>\n<p class=\"wp-block-paragraph\"><\/p>\n<p class=\"wp-block-paragraph\">\u89e3\u91ca\u8f93\u51fa\u7ed3\u679c\u7684\u5173\u952e\u6307\u6807\u5305\u62ec\uff1a<\/p>\n<ul class=\"wp-block-list\">\n<li><strong>Device<\/strong>: \u8bbe\u5907\u540d\u79f0\uff0c\u4f8b\u5982<code>sda<\/code>\u6216<code>dm-0<\/code>\u3002<\/li>\n\n<li><strong>rrqm\/s<\/strong>: \u6bcf\u79d2\u5408\u5e76\u8bfb\u53d6\u8bf7\u6c42\u7684\u6570\u91cf\u3002<\/li>\n\n<li><strong>wrqm\/s<\/strong>: \u6bcf\u79d2\u5408\u5e76\u5199\u5165\u8bf7\u6c42\u7684\u6570\u91cf\u3002<\/li>\n\n<li><strong>r\/s<\/strong>: \u6bcf\u79d2\u5b8c\u6210\u7684\u8bfbI\/O\u64cd\u4f5c\u6570\u91cf\u3002<\/li>\n\n<li><strong>w\/s<\/strong>: \u6bcf\u79d2\u5b8c\u6210\u7684\u5199I\/O\u64cd\u4f5c\u6570\u91cf\u3002<\/li>\n\n<li><strong>rkB\/s<\/strong>: \u6bcf\u79d2\u4ece\u8bbe\u5907\u8bfb\u53d6\u7684\u6570\u636e\u91cf\uff08\u4ee5KB\u4e3a\u5355\u4f4d\uff09\u3002<\/li>\n\n<li><strong>wkB\/s<\/strong>: \u6bcf\u79d2\u5411\u8bbe\u5907\u5199\u5165\u7684\u6570\u636e\u91cf\uff08\u4ee5KB\u4e3a\u5355\u4f4d\uff09\u3002<\/li>\n\n<li><strong>avgrq-sz<\/strong>: \u5e73\u5747\u6bcf\u6b21I\/O\u64cd\u4f5c\u7684\u6570\u636e\u5927\u5c0f\uff08\u4ee5\u6247\u533a\u4e3a\u5355\u4f4d\uff09\u3002<\/li>\n\n<li><strong>avgqu-sz<\/strong>: \u5e73\u5747I\/O\u961f\u5217\u957f\u5ea6\u3002<\/li>\n\n<li><strong>await<\/strong>: \u5e73\u5747\u6bcf\u6b21I\/O\u64cd\u4f5c\u7684\u7b49\u5f85\u65f6\u95f4\uff08\u4ee5\u6beb\u79d2\u4e3a\u5355\u4f4d\uff09\u3002<\/li>\n\n<li><strong>r_await<\/strong>: \u5e73\u5747\u6bcf\u6b21\u8bfb\u64cd\u4f5c\u7684\u7b49\u5f85\u65f6\u95f4\uff08\u4ee5\u6beb\u79d2\u4e3a\u5355\u4f4d\uff09\u3002<\/li>\n\n<li><strong>w_await<\/strong>: \u5e73\u5747\u6bcf\u6b21\u5199\u64cd\u4f5c\u7684\u7b49\u5f85\u65f6\u95f4\uff08\u4ee5\u6beb\u79d2\u4e3a\u5355\u4f4d\uff09\u3002<\/li>\n\n<li><strong>svctm<\/strong>: \u5e73\u5747\u6bcf\u6b21I\/O\u64cd\u4f5c\u7684\u670d\u52a1\u65f6\u95f4\uff08\u4ee5\u6beb\u79d2\u4e3a\u5355\u4f4d\uff09\u3002<\/li>\n\n<li><strong>%util<\/strong>: \u8bbe\u5907\u7684\u5229\u7528\u7387\u767e\u5206\u6bd4\uff0c\u63a5\u8fd1100%\u610f\u5473\u7740\u8bbe\u5907\u63a5\u8fd1\u9971\u548c\u3002<\/li>\n<\/ul>\n<p class=\"wp-block-paragraph\">\u8bf7\u6ce8\u610f\uff0c<code>svctm<\/code>\u548c<code>%util<\/code>\u5b57\u6bb5\u5728\u591a\u6838\u5904\u7406\u5668\u7cfb\u7edf\u4e0a\u53ef\u80fd\u4e0d\u4f1a\u63d0\u4f9b\u51c6\u786e\u7684\u6307\u6807\uff0c\u56e0\u4e3a\u5b83\u4eec\u4e0d\u80fd\u5f88\u597d\u5730\u53cd\u6620\u5e76\u53d1\u64cd\u4f5c\u3002<\/p>\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u770b\u5230<code>%util<\/code>\u503c\u63a5\u8fd1\u6216\u7b49\u4e8e100%\uff0c\u8fd9\u901a\u5e38\u610f\u5473\u7740\u60a8\u7684\u78c1\u76d8\u5728\u6307\u5b9a\u7684\u65f6\u95f4\u95f4\u9694\u5185\u51e0\u4e4e\u4e00\u76f4\u5728\u5fd9\u788c,\u4f46\u5e76\u4e0d\u4ee3\u8868\u5df2\u5230\u8fbe\u6027\u80fd\u4e0a\u9650\u3002\u5982\u679c<code>await<\/code>\u503c\u5f88\u9ad8\uff0c\u8fd9\u53ef\u80fd\u8868\u660eI\/O\u8bf7\u6c42\u7b49\u5f85\u65f6\u95f4\u8fc7\u957f\uff0c\u53ef\u80fd\u662f\u7531\u4e8e\u78c1\u76d8\u8fc7\u4e8e\u7e41\u5fd9\u6216\u5b58\u5728I\/O\u6027\u80fd\u74f6\u9888\u3002<\/p>\n<p class=\"wp-block-paragraph\">\u4f7f\u7528<code>iostat<\/code>\u65f6\uff0c\u901a\u5e38\u9700\u8981\u6536\u96c6\u4e00\u6bb5\u65f6\u95f4\u7684\u6570\u636e\uff0c\u5e76\u5bf9\u7ed3\u679c\u8fdb\u884c\u957f\u671f\u5206\u6790\uff0c\u4ee5\u4fbf\u66f4\u51c6\u786e\u5730\u7406\u89e3\u7cfb\u7edf\u7684I\/O\u6027\u80fd\uff0c\u4e0b\u9762\u662f\u672c\u673a\u8fd0\u884c\u7684\u622a\u56fe<\/p>\n<figure class=\"wp-block-image size-large\"><figure id=\"attachment_mmd_314\" class=\"wp-block-image \"><img decoding=\"async\" width=\"1024\" height=\"651\" src=\"https:\/\/www.liaoxinghui.com\/wp-content\/uploads\/2023\/11\/image-2-1024x651.png\" class=\"attachment-1024x651 size-1024x651\" alt=\"\" loading=\"lazy\" \/><\/figure><\/figure>","protected":false},"excerpt":{"rendered":"<p>iostat \u662f\u4e00\u4e2a\u7528\u4e8e\u76d1\u6d4b\u7cfb\u7edf\u8f93\u5165\u8f93\u51fa\u8bbe\u5907\u548cCPU\u4f7f\u7528\u60c5\u51b5\u7684\u7edf\u8ba1\u5de5\u5177\u3002\u5b83\u662f\u5927\u591a\u6570\u7c7bUnix\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u7684\u6807\u51c6\u5de5\u5177\uff0c\u5305\u62ecLinux\u3002iost &hellip;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,10],"tags":[62,61],"class_list":["post-313","post","type-post","status-publish","format-standard","hentry","category-linux","category-10","tag-iostat","tag-iostatio"],"views":601,"_links":{"self":[{"href":"https:\/\/www.liaoxinghui.com\/index.php?rest_route=\/wp\/v2\/posts\/313","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.liaoxinghui.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.liaoxinghui.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.liaoxinghui.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.liaoxinghui.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=313"}],"version-history":[{"count":1,"href":"https:\/\/www.liaoxinghui.com\/index.php?rest_route=\/wp\/v2\/posts\/313\/revisions"}],"predecessor-version":[{"id":315,"href":"https:\/\/www.liaoxinghui.com\/index.php?rest_route=\/wp\/v2\/posts\/313\/revisions\/315"}],"wp:attachment":[{"href":"https:\/\/www.liaoxinghui.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=313"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.liaoxinghui.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=313"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.liaoxinghui.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=313"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}