{"id":33702,"date":"2026-11-09T16:00:00","date_gmt":"2026-11-09T08:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=33702"},"modified":"2026-10-29T21:42:02","modified_gmt":"2026-10-29T13:42:02","slug":"server-io-iostat-iotop","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/guides\/server-io-iostat-iotop\/","title":{"rendered":"\u670d\u52a1\u5668\u78c1\u76d8 IO \u76d1\u63a7\uff1aiostat \u4e0e iotop \u5b9a\u4f4d\u6162\u78c1\u76d8\u74f6\u9888"},"content":{"rendered":"<p>\u7f51\u7ad9\u660e\u660e CPU \u548c\u5185\u5b58\u90fd\u4e0d\u7d27\u5f20\uff0c\u9875\u9762\u5374\u65f6\u4e0d\u65f6\u5361\u4e0a\u51e0\u79d2\uff0c\u8fd9\u7c7b\u95ee\u9898\u5f88\u591a\u65f6\u5019\u4e0d\u662f\u7b97\u529b\u4e0d\u591f\uff0c\u800c\u662f\u78c1\u76d8\u8bfb\u5199\u6392\u961f\u4e86\u3002\u672c\u6587\u6559\u4f60\u5982\u4f55\u7528 iostat \u548c iotop \u4e24\u4e2a\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u4ece&#8221;\u78c1\u76d8\u6574\u4f53\u5fd9\u4e0d\u5fd9&#8221;\u548c&#8221;\u8c01\u5728\u75af\u72c2\u8bfb\u5199&#8221;\u4e24\u4e2a\u65b9\u5411\u5165\u624b\uff0c\u4e00\u6b65\u6b65\u5b9a\u4f4d\u670d\u52a1\u5668\u78c1\u76d8 IO \u74f6\u9888\uff0c\u5168\u6587\u547d\u4ee4\u90fd\u53ef\u76f4\u63a5\u590d\u5236\u6267\u884c\uff0c\u5e2e\u52a9\u4f60\u628a\u6392\u969c\u65f6\u95f4\u4ece\u51e0\u5c0f\u65f6\u538b\u7f29\u5230\u51e0\u5206\u949f\u3002<\/p>\n<h2>\u4e3a\u4ec0\u4e48\u78c1\u76d8 IO \u6162\u4f1a\u628a\u6574\u4e2a\u670d\u52a1\u5668\u62d6\u57ae<\/h2>\n<p>\u78c1\u76d8\u662f\u670d\u52a1\u5668\u91cc\u6700\u5bb9\u6613\u6210\u4e3a\u74f6\u9888\u7684\u90e8\u4ef6\u4e4b\u4e00\u3002CPU \u4e00\u6b21\u8ba1\u7b97\u53ea\u8981\u6beb\u79d2\u7ea7\uff0c\u5185\u5b58\u8bbf\u95ee\u66f4\u5feb\uff0c\u800c\u4e00\u5757\u673a\u68b0\u76d8\u7684\u968f\u673a\u8bfb\u5199\u5ef6\u8fdf\u53ef\u80fd\u5728 10 \u6beb\u79d2\u4ee5\u4e0a\uff0c\u666e\u901a SATA \u56fa\u6001\u76d8\u867d\u7136\u5feb\u5f88\u591a\uff0c\u4f46\u5728\u9ad8\u5e76\u53d1\u5199\u5165\u65f6\u540c\u6837\u4f1a\u6392\u961f\u3002\u8fd9\u4e5f\u662f\u4e3a\u4ec0\u4e48\u5f88\u591a\u7ad9\u957f\u628a\u7f51\u7ad9\u4ece\u5c0f\u578b <a href=\"https:\/\/cn.hostease.com\/vps\/\">VPS \u4e3b\u673a\uff08\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668\uff09<\/a>\u8fc1\u79fb\u5230\u66f4\u9ad8\u914d\u7f6e\u540e\uff0c\u5361\u987f\u95ee\u9898\u53cd\u800c\u96c6\u4e2d\u5728\u78c1\u76d8\u6307\u6807\u4e0a\u2014\u2014\u786c\u4ef6\u89c4\u683c\u53d8\u4e86\uff0c\u78c1\u76d8\u5c42\u9762\u7684\u6392\u67e5\u65b9\u6cd5\u5e76\u6ca1\u6709\u53d8\u3002<\/p>\n<p>\u4f60\u53ef\u4ee5\u8fd9\u6837\u7406\u89e3\uff1a\u8fdb\u7a0b\u6bcf\u6b21\u8bfb\u6587\u4ef6\u3001\u5199\u65e5\u5fd7\u3001\u67e5\u6570\u636e\u5e93\uff0c\u6700\u7ec8\u90fd\u8981\u843d\u5230\u78c1\u76d8\u4e0a\u3002\u5f53\u78c1\u76d8\u5fd9\u4e0d\u8fc7\u6765\u65f6\uff0c\u8bf7\u6c42\u5c31\u4f1a\u5728\u961f\u5217\u91cc\u7b49\u5f85\uff0c\u7b49\u5f85\u65f6\u95f4\u88ab\u5c42\u5c42\u653e\u5927\u2014\u2014\u6570\u636e\u5e93\u67e5\u8be2\u53d8\u6162\uff0cPHP \u8fdb\u7a0b\u7b49\u5f85\u6570\u636e\u5e93\uff0cWeb \u8bf7\u6c42\u5806\u79ef\uff0c\u7528\u6237\u770b\u5230\u7684\u5c31\u662f\u9875\u9762\u52a0\u8f7d\u8d8a\u6765\u8d8a\u6162\u3002\u8fd9\u65f6\u5019\u5982\u679c\u53ea\u5347\u7ea7 CPU \u6216\u52a0\u5185\u5b58\uff0c\u95ee\u9898\u4e0d\u4f1a\u6d88\u5931\uff0c\u94b1\u82b1\u5728\u4e86\u4e0d\u5bf9\u7684\u5730\u65b9\u3002<\/p>\n<p>\u6240\u4ee5\u9664\u4e86\u5347\u7ea7\u786c\u4ef6\uff0c\u65e5\u5e38\u7684\u78c1\u76d8 IO \u76d1\u63a7\u540c\u6837\u662f\u6bcf\u4e2a\u7ad9\u957f\u5e94\u8be5\u638c\u63e1\u7684\u6280\u80fd\u2014\u2014\u501f\u52a9\u5b83\u53ef\u4ee5\u5728\u7528\u6237\u6295\u8bc9\u4e4b\u524d\u5c31\u53d1\u73b0\u9690\u60a3\u3002\u6240\u4ee5\u5728\u52a8\u624b\u4f18\u5316\u4e4b\u524d\uff0c\u5148\u56de\u7b54\u4e24\u4e2a\u95ee\u9898\uff1a\u78c1\u76d8\u5230\u5e95\u5fd9\u5230\u4ec0\u4e48\u7a0b\u5ea6\uff1f\u662f\u54ea\u4e2a\u8fdb\u7a0b\u5728\u5927\u91cf\u8bfb\u5199\uff1fiostat \u56de\u7b54\u7b2c\u4e00\u4e2a\u95ee\u9898\uff0ciotop \u56de\u7b54\u7b2c\u4e8c\u4e2a\u95ee\u9898\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/server-io-iostat-iotop-cover.webp\" alt=\"\u670d\u52a1\u5668\u78c1\u76d8 IO \u76d1\u63a7\u5c01\u9762\u914d\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u7528 iostat \u770b\u78c1\u76d8\u6574\u4f53\u8d1f\u8f7d<\/h2>\n<p>iostat \u5c5e\u4e8e sysstat \u5de5\u5177\u5305\uff0c\u8d1f\u8d23\u4ece\u5757\u8bbe\u5907\u5c42\u9762\u7ed9\u51fa\u78c1\u76d8\u7684\u8bfb\u5199\u901f\u7387\u3001\u8bf7\u6c42\u961f\u5217\u957f\u5ea6\u548c\u5229\u7528\u7387\u3002\u5982\u679c\u4f60\u7684\u670d\u52a1\u5668\u4e0a\u8fd8\u6ca1\u6709\u8fd9\u4e2a\u547d\u4ee4\uff0c\u5148\u5b89\u88c5\u5b83\uff1a<\/p>\n<pre><code class=\"language-bash\"># Debian \/ Ubuntu\napt install sysstat\n\n# CentOS \/ AlmaLinux \/ Rocky Linux\nyum install sysstat\n<\/code><\/pre>\n<p>\u5b89\u88c5\u540e\u76f4\u63a5\u8fd0\u884c <code>iostat -xz 1<\/code>\uff0c\u5176\u4e2d <code>-x<\/code> \u8868\u793a\u8f93\u51fa\u6269\u5c55\u7edf\u8ba1\uff0c<code>-z<\/code> \u9690\u85cf\u7a7a\u95f2\u8bbe\u5907\uff0c<code>1<\/code> \u8868\u793a\u6bcf\u79d2\u5237\u65b0\u4e00\u6b21\u3002\u91cd\u70b9\u5173\u6ce8\u4e0b\u9762\u51e0\u5217\uff1a<\/p>\n<ul>\n<li><strong>%util<\/strong>\uff1a\u78c1\u76d8\u5904\u4e8e\u5fd9\u788c\u72b6\u6001\u7684\u65f6\u95f4\u767e\u5206\u6bd4\u3002\u6301\u7eed\u9ad8\u4e8e 80% \u8bf4\u660e\u78c1\u76d8\u63a5\u8fd1\u9971\u548c\uff0c\u662f\u5224\u65ad\u6162\u78c1\u76d8\u6700\u76f4\u63a5\u7684\u4fe1\u53f7<\/li>\n<li><strong>await<\/strong>\uff1a\u6bcf\u4e2a IO \u8bf7\u6c42\u7684\u5e73\u5747\u7b49\u5f85\u65f6\u95f4\uff08\u6beb\u79d2\uff09\u3002\u673a\u68b0\u76d8\u6b63\u5e38\u5e94\u5728 10ms \u4ee5\u5185\uff0c\u8d85\u8fc7 50ms \u8bf4\u660e\u8bf7\u6c42\u5728\u6392\u961f<\/li>\n<li><strong>r\/s \u4e0e w\/s<\/strong>\uff1a\u6bcf\u79d2\u8bfb\u8bf7\u6c42\u548c\u5199\u8bf7\u6c42\u6b21\u6570\uff0c\u7528\u6765\u5224\u65ad\u8d1f\u8f7d\u7c7b\u578b\u662f\u8bfb\u591a\u8fd8\u662f\u5199\u591a<\/li>\n<li><strong>aqu-sz<\/strong>\uff1a\u5e73\u5747\u961f\u5217\u957f\u5ea6\uff0c\u6301\u7eed\u5927\u4e8e 2 \u901a\u5e38\u610f\u5473\u7740\u78c1\u76d8\u5904\u7406\u80fd\u529b\u5df2\u7ecf\u8ddf\u4e0d\u4e0a\u8bf7\u6c42\u901f\u5ea6<\/li>\n<\/ul>\n<p>\u4e00\u4e2a\u5178\u578b\u7684\u9ad8\u8d1f\u8f7d\u8f93\u51fa\u662f\u8fd9\u6837\u7684\uff1a\u67d0\u5757\u76d8 <code>%util<\/code> \u957f\u671f\u8d34\u7740 100%\uff0c<code>await<\/code> \u4ece\u5e73\u65f6\u7684 3ms \u6da8\u5230 80ms\uff0c\u540c\u65f6 <code>w\/s<\/code> \u8fbe\u5230\u6bcf\u79d2 400 \u6b21\u3002\u8fd9\u65f6\u53ef\u4ee5\u57fa\u672c\u65ad\u5b9a\uff0c\u53d8\u6162\u7684\u6839\u6e90\u5c31\u5728\u8fd9\u5757\u76d8\u7684\u5199\u5165\u538b\u529b\u4e0a\u3002\u5982\u679c\u591a\u5757\u76d8\u91cc\u53ea\u6709\u4e00\u5757\u5f02\u5e38\uff0c\u8fd8\u8981\u7559\u610f\u662f\u4e0d\u662f\u65e5\u5fd7\u6216\u4e34\u65f6\u76ee\u5f55\u96c6\u4e2d\u5199\u5728\u4e86\u540c\u4e00\u5757\u76d8\u4e0a\u3002<\/p>\n<h2>\u7528 iotop \u627e\u51fa\u9ad8 IO \u8fdb\u7a0b<\/h2>\n<p>iostat \u544a\u8bc9\u4f60&#8221;\u78c1\u76d8\u5f88\u5fd9&#8221;\uff0c\u4f46\u5b9a\u4f4d\u95ee\u9898\u8fd8\u9700\u8981\u77e5\u9053&#8221;\u662f\u8c01\u628a\u5b83\u641e\u5fd9\u7684&#8221;\uff0c\u8fd9\u4e00\u6b65\u8981\u7528 iotop\u3002\u5b83\u662f\u57fa\u4e8e\u5185\u6838 IO \u8bb0\u8d26\u7684\u5de5\u5177\uff0c\u9700\u8981 root \u6743\u9650\u8fd0\u884c\uff1a<\/p>\n<pre><code class=\"language-bash\"># Debian \/ Ubuntu\napt install iotop\n\n# CentOS \/ AlmaLinux \/ Rocky Linux\nyum install iotop\n<\/code><\/pre>\n<p>\u8fd0\u884c <code>iotop -oP<\/code> \u6700\u6709\u5b9e\u7528\u4ef7\u503c\uff1a<code>-o<\/code> \u53ea\u663e\u793a\u5f53\u524d\u6709 IO \u6d3b\u52a8\u7684\u8fdb\u7a0b\uff0c<code>-P<\/code> \u6309\u8fdb\u7a0b\u800c\u4e0d\u662f\u7ebf\u7a0b\u805a\u5408\uff0c\u907f\u514d\u540c\u4e00\u4e2a\u670d\u52a1\u7684\u4e00\u5806\u7ebf\u7a0b\u5237\u5c4f\u3002\u6392\u969c\u65f6\u6211\u4eec\u5efa\u8bae\u7684\u89c2\u5bdf\u65b9\u5f0f\u662f\u76ef 30 \u79d2\u5de6\u53f3\uff0c\u8bb0\u5f55\u8bfb\u5199\u91cf\u6700\u5927\u7684\u524d\u51e0\u4e2a\u8fdb\u7a0b\uff0c\u901a\u5e38\u74f6\u9888\u8fdb\u7a0b\u4f1a\u7acb\u523b\u73b0\u5f62\u3002<\/p>\n<p>\u5b9e\u9645\u6392\u67e5\u4e2d\uff0c\u9ad8\u9891\u51fa\u73b0\u7684&#8221;\u5143\u51f6&#8221;\u4e3b\u8981\u6709\u8fd9\u51e0\u7c7b\uff1a<\/p>\n<ul>\n<li><strong>\u6570\u636e\u5e93\u8fdb\u7a0b<\/strong>\uff08\u5982 mysqld\uff09\uff1a\u6162\u67e5\u8be2\u3001\u4e34\u65f6\u8868\u843d\u76d8\u3001\u5907\u4efd\u4efb\u52a1\u90fd\u4f1a\u9020\u6210\u6301\u7eed\u9ad8\u5199\u5165\uff0c\u914d\u5957\u68c0\u67e5\u6162\u67e5\u8be2\u65e5\u5fd7\u5f80\u5f80\u80fd\u627e\u5230\u6839\u56e0<\/li>\n<li><strong>\u65e5\u5fd7\u5199\u5165<\/strong>\uff1a\u8c03\u8bd5\u7ea7\u522b\u65e5\u5fd7\u6216\u8bbf\u95ee\u65e5\u5fd7\u66b4\u6da8\uff0c\u6bcf\u5c0f\u65f6\u80fd\u5199\u6389\u51e0\u4e2a GB\uff0c\u53ef\u4ee5\u7528 <code>du -sh \/var\/log\/*<\/code> \u786e\u8ba4\u76ee\u5f55\u5927\u5c0f<\/li>\n<li><strong>\u5907\u4efd\u4e0e\u540c\u6b65\u4efb\u52a1<\/strong>\uff1a\u6253\u5305\u3001\u538b\u7f29\u3001rsync \u4efb\u52a1\u96c6\u4e2d\u5728\u4e1a\u52a1\u9ad8\u5cf0\u6267\u884c\uff0c\u628a\u767d\u5929\u5c31\u4e0d\u5bbd\u88d5\u7684\u78c1\u76d8\u5e26\u5bbd\uff08\u5355\u4f4d\u65f6\u95f4\u53ef\u4f20\u8f93\u7684\u6570\u636e\u91cf\uff09\u5403\u5149<\/li>\n<li><strong>swap \u4ea4\u6362<\/strong>\uff1a\u5185\u5b58\u4e0d\u8db3\u65f6\u7cfb\u7edf\u9891\u7e41\u6362\u9875\uff0ckswapd \u8fdb\u7a0b\u51fa\u73b0\u5728 iotop \u524d\u5217\uff0c\u8bf4\u660e\u771f\u6b63\u7684\u95ee\u9898\u662f\u5185\u5b58\u800c\u4e0d\u662f\u78c1\u76d8<\/li>\n<\/ul>\n<h2>\u4e00\u4e2a\u5b8c\u6574\u7684\u6392\u67e5\u6848\u4f8b<\/h2>\n<p>\u628a\u4e24\u4e2a\u5de5\u5177\u4e32\u8d77\u6765\u7528\u4e00\u904d\uff0c\u601d\u8def\u5c31\u6e05\u6670\u4e86\u3002\u5047\u8bbe\u67d0\u53f0\u8dd1 WordPress \u7684 <a href=\"https:\/\/cn.hostease.com\/vps\/\">VPS<\/a>\uff08<a href=\"https:\/\/cn.hostease.com\/vps\/\">\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668<\/a>\uff09\u767d\u5929\u9875\u9762\u54cd\u5e94\u4ece 800ms \u6da8\u5230 5 \u79d2\u4ee5\u4e0a\uff0cCPU \u4f7f\u7528\u7387\u4e0d\u5230 20%\uff0c\u5185\u5b58\u4e5f\u5145\u8db3\uff0c\u4ece\u73b0\u8c61\u770b\u662f&#8221;\u6ca1\u7406\u7531\u7684\u6162&#8221;\u3002\u6392\u67e5\u524d\u7684\u7b2c\u4e00\u6b65\uff0c\u662f\u5148\u786e\u8ba4\u78c1\u76d8\u5c42\u9762\u6709\u6ca1\u6709\u5f02\u5e38\uff0c\u907f\u514d\u4e00\u4e0a\u6765\u5c31\u8bef\u5224\u6210\u5e94\u7528\u95ee\u9898\u3002<\/p>\n<p>\u7b2c\u4e00\u6b65\u8fd0\u884c <code>iostat -xz 1<\/code>\uff0c\u53d1\u73b0 vdb \u8fd9\u5757\u76d8 <code>%util<\/code> \u957f\u671f\u5728 95% \u4ee5\u4e0a\uff0c<code>await<\/code> \u8fbe\u5230 60ms\uff0c\u800c\u7cfb\u7edf\u76d8 vda \u5404\u9879\u6307\u6807\u6b63\u5e38\u3002\u95ee\u9898\u8303\u56f4\u7f29\u5c0f\u5230\u6570\u636e\u76d8\u3002<\/p>\n<p>\u7b2c\u4e8c\u6b65\u8fd0\u884c <code>iotop -oP<\/code>\uff0c\u534a\u5206\u949f\u5185 mysqld \u7684\u5199\u5165\u901f\u5ea6\u7ef4\u6301\u5728\u6bcf\u79d2 8MB\uff0c\u6392\u5728\u6240\u6709\u8fdb\u7a0b\u4e4b\u9996\u3002\u767b\u5f55\u6570\u636e\u5e93\u67e5\u770b\u8fdb\u7a0b\u5217\u8868\uff0c\u53d1\u73b0\u4e00\u4e2a\u6bcf\u5929\u8fd9\u4e2a\u65f6\u6bb5\u8fd0\u884c\u7684\u7edf\u8ba1\u4efb\u52a1\u5728\u5168\u8868\u626b\u63cf\u5e76\u5199\u4e34\u65f6\u8868\u3002<\/p>\n<p>\u7b2c\u4e09\u6b65\u5bf9\u75c7\u5904\u7406\uff1a\u7ed9\u7edf\u8ba1\u4efb\u52a1\u6d89\u53ca\u7684\u8868\u8865\u4e0a\u7d22\u5f15\uff0c\u628a\u4efb\u52a1\u6267\u884c\u65f6\u95f4\u4ece\u9ad8\u5cf0\u671f\u632a\u5230\u51cc\u6668 3 \u70b9\u3002\u5904\u7406\u540e\u540c\u4e00\u65f6\u6bb5\u7684 <code>await<\/code> \u56de\u843d\u5230 4ms\uff0c<code>%util<\/code> \u964d\u5230 30% \u4ee5\u4e0b\uff0c\u9875\u9762\u54cd\u5e94\u6062\u590d\u5230 1 \u79d2\u5185\u3002\u9a8c\u8bc1\u65b9\u5f0f\u5f88\u7b80\u5355\uff1a\u5904\u7406\u540e\u7b2c\u4e8c\u5929\u518d\u6b21\u8fd0\u884c <code>iostat -xz 1<\/code> \u5bf9\u6bd4\u540c\u65f6\u6bb5\u6570\u636e\uff0c\u786e\u8ba4\u6307\u6807\u786e\u5b9e\u56de\u843d\uff0c\u800c\u4e0d\u662f\u78b0\u5de7\u4e1a\u52a1\u91cf\u5c11\u3002<\/p>\n<p>\u8fd9\u4e2a\u6848\u4f8b\u8bf4\u660e\u78c1\u76d8 IO \u6392\u67e5\u7684\u4ef7\u503c\u5728\u4e8e&#8221;\u627e\u51c6\u518d\u52a8\u624b&#8221;\u2014\u2014\u5982\u679c\u5f53\u65f6\u6ca1\u6709\u770b iotop\uff0c\u76f4\u63a5\u51ed\u611f\u89c9\u5347\u7ea7\u78c1\u76d8\u89c4\u683c\uff0c\u7edf\u8ba1\u4efb\u52a1\u7167\u6837\u4f1a\u5728\u9ad8\u5cf0\u671f\u5360\u7528\u5927\u91cf\u5e26\u5bbd\uff0c\u94b1\u82b1\u4e86\u6548\u679c\u6709\u9650\u3002\u7c7b\u4f3c\u7684\u601d\u8def\u4e5f\u9002\u7528\u4e8e<a href=\"https:\/\/cn.hostease.com\/blog\/guides\/ttfb-hosting-optimization\/\">\u7f51\u7ad9\u6027\u80fd\u4f18\u5316<\/a>\uff1a\u5148\u91cf\u5316\u74f6\u9888\uff0c\u518d\u51b3\u5b9a\u5728\u54ea\u91cc\u6295\u5165\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/server-io-troubleshooting.webp\" alt=\"\u670d\u52a1\u5668\u78c1\u76d8 IO \u6392\u67e5\u6d41\u7a0b\u914d\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u5e38\u89c1\u6162\u78c1\u76d8\u573a\u666f\u4e0e\u5904\u7406\u5efa\u8bae<\/h2>\n<p>\u5b9a\u4f4d\u5230\u74f6\u9888\u540e\uff0c\u5904\u7406\u65b9\u5f0f\u53d6\u51b3\u4e8e\u5177\u4f53\u539f\u56e0\u3002\u4e0b\u9762\u6309\u573a\u666f\u7ed9\u51fa\u53ef\u843d\u5730\u7684\u505a\u6cd5\uff0c\u6bcf\u4e00\u6761\u90fd\u6765\u81ea\u5b9e\u9645\u5de5\u5355\u4e2d\u53cd\u590d\u51fa\u73b0\u7684\u5178\u578b\u60c5\u51b5\uff1a<\/p>\n<ul>\n<li><strong>\u65e5\u5fd7\u5931\u63a7<\/strong>\uff1a\u5148\u6e05\u7406\u548c\u8f6e\u8f6c\uff0c\u914d\u7f6e logrotate \u9650\u5236\u5355\u65e5\u5fd7\u5927\u5c0f\uff0c\u518d\u628a\u5e94\u7528\u65e5\u5fd7\u7ea7\u522b\u4ece debug \u8c03\u56de info\uff0c\u901a\u5e38\u80fd\u51cf\u5c11\u4e00\u534a\u4ee5\u4e0a\u7684\u5199\u5165\u91cf<\/li>\n<li><strong>\u6570\u636e\u5e93\u5199\u5165\u538b\u529b\u5927<\/strong>\uff1a\u4f18\u5148\u4f18\u5316\u6162\u67e5\u8be2\u548c\u7d22\u5f15\uff0c\u5176\u6b21\u8003\u8651\u628a InnoDB \u7684\u5237\u76d8\u53c2\u6570\uff08\u5982 innodb_flush_log_at_trx_commit\uff09\u6309\u4e1a\u52a1\u5bb9\u5fcd\u5ea6\u8c03\u6574\uff0c\u6700\u540e\u624d\u662f\u5347\u7ea7\u5b58\u50a8<\/li>\n<li><strong>\u591a\u670d\u52a1\u4e89\u62a2\u540c\u4e00\u5757\u76d8<\/strong>\uff1a\u628a\u65e5\u5fd7\u3001\u6570\u636e\u5e93\u6570\u636e\u3001\u7f51\u7ad9\u6587\u4ef6\u5206\u76d8\u5b58\u653e\uff0c\u4f8b\u5982\u7cfb\u7edf\u76d8\u8dd1\u7cfb\u7edf\u3001\u6570\u636e\u76d8\u5355\u72ec\u7ed9\u6570\u636e\u5e93\uff0c\u907f\u514d\u4e92\u76f8\u62d6\u7d2f<\/li>\n<li><strong>\u786c\u4ef6\u672c\u8eab\u8001\u5316<\/strong>\uff1a\u673a\u68b0\u76d8\u8fde\u7eed\u9ad8 <code>await<\/code> \u4e14\u65e0\u5f02\u5e38\u8fdb\u7a0b\uff0c\u7528 <code>smartctl -a \/dev\/vdb<\/code> \u67e5\u770b\u5065\u5eb7\u72b6\u6001\uff0c\u51fa\u73b0\u91cd\u6620\u5c04\u6247\u533a\u589e\u957f\u5c31\u8be5\u8ba1\u5212\u6362\u76d8\u4e86<\/li>\n<\/ul>\n<p>\u4e0a\u9762\u8fd9\u4e9b\u573a\u666f\u591a\u6570\u53ef\u4ee5\u901a\u8fc7\u8c03\u6574\u914d\u7f6e\u89e3\u51b3\uff0c\u4f46\u5982\u679c\u6392\u67e5\u5230\u6700\u540e\u53d1\u73b0\u662f\u670d\u52a1\u5668\u672c\u8eab\u7684\u78c1\u76d8\u89c4\u683c\u8ddf\u4e0d\u4e0a\u4e1a\u52a1\u589e\u957f\u2014\u2014\u6bd4\u5982\u7f51\u7ad9\u6570\u636e\u91cf\u6da8\u5230\u51e0\u5341 GB \u540e\uff0c\u673a\u68b0\u76d8\u7684\u968f\u673a\u8bfb\u5199\u59cb\u7ec8\u8ddf\u4e0d\u4e0a\u6570\u636e\u5e93\u7684\u5199\u5165\u8282\u594f\u2014\u2014\u7ee7\u7eed\u5728\u8f6f\u4ef6\u5c42\u6253\u8f6c\u6536\u76ca\u5c31\u5f88\u6709\u9650\u4e86\u3002\u6362\u7528\u5168\u95ea\u5b58\u65b9\u6848\u4f1a\u6709\u660e\u663e\u6539\u5584\uff0cHostease \u7684<a href=\"https:\/\/cn.hostease.com\/dedicated-server\/\">\u72ec\u7acb\u670d\u52a1\u5668<\/a>\u91c7\u7528\u7eaf SSD \u5b58\u50a8\uff0c\u5bf9\u6570\u636e\u5e93\u7c7b\u5e94\u7528\u7684\u9ad8\u968f\u673a IO \u573a\u666f\u66f4\u53cb\u597d\uff0c\u53ef\u4ee5\u4f5c\u4e3a\u6269\u5bb9\u65f6\u7684\u5907\u9009\u4e4b\u4e00\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/server-io-comparison.webp\" alt=\"\u670d\u52a1\u5668\u78c1\u76d8\u8d1f\u8f7d\u5bf9\u6bd4\u914d\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u603b\u7ed3\uff1a\u628a IO \u6392\u67e5\u53d8\u6210\u56fa\u5b9a\u52a8\u4f5c<\/h2>\n<p>\u78c1\u76d8 IO \u74f6\u9888\u7684\u6838\u5fc3\u6392\u67e5\u8def\u5f84\u53ef\u4ee5\u538b\u7f29\u6210\u4e09\u53e5\u8bdd\uff1a\u5148\u7528 iostat \u786e\u8ba4\u78c1\u76d8\u662f\u5426\u9971\u548c\uff0c\u518d\u7528 iotop \u627e\u51fa\u5360\u7528 IO \u7684\u8fdb\u7a0b\uff0c\u6700\u540e\u9488\u5bf9\u8fdb\u7a0b\u7c7b\u578b\u5bf9\u75c7\u5904\u7406\u3002\u5efa\u8bae\u628a\u5b83\u56fa\u5316\u6210\u65e5\u5e38\u8fd0\u7ef4\u52a8\u4f5c\uff1a\u5728\u76d1\u63a7\u7cfb\u7edf\u4e2d\u5bf9 <code>%util<\/code> \u8bbe\u7f6e 85% \u7684\u544a\u8b66\u9608\u503c\uff0c\u6bcf\u5468\u68c0\u67e5\u4e00\u6b21 <code>\/var\/log<\/code> \u589e\u957f\u91cf\uff0c\u5907\u4efd\u4efb\u52a1\u7edf\u4e00\u5b89\u6392\u5230\u51cc\u6668\u4f4e\u5cf0\u65f6\u6bb5\u3002<\/p>\n<p>\u5982\u679c\u4f60\u9700\u8981\u4e00\u53f0\u78c1\u76d8\u6027\u80fd\u66f4\u624e\u5b9e\u7684\u670d\u52a1\u5668\u6765\u627f\u8f7d\u589e\u957f\u4e2d\u7684\u4e1a\u52a1\uff0c\u53ef\u4ee5\u8003\u8651\u4e86\u89e3\u4e00\u4e0b <a href=\"https:\/\/cn.hostease.com\/dedicated-server\/\">Hostease \u72ec\u7acb\u670d\u52a1\u5668<\/a>\uff0c\u5168 SSD \u5b58\u50a8\u642d\u914d\u4e2d\u6587\u6280\u672f\u652f\u6301\uff0c\u8fc1\u79fb\u6216\u6269\u5bb9\u8fc7\u7a0b\u4e2d\u9047\u5230\u95ee\u9898\u4e5f\u53ef\u4ee5\u76f4\u63a5\u8054\u7cfb\u6211\u4eec\u534f\u52a9\u6392\u67e5\u3002\u603b\u7ed3\u6210\u4e00\u53e5\u8bdd\uff1a\u5148\u5efa\u7acb\u78c1\u76d8 IO \u76d1\u63a7\u7684\u4e60\u60ef\uff0c\u518d\u51b3\u5b9a\u786c\u4ef6\u6295\u5165\u7684\u65b9\u5411\uff0c\u5f53\u78c1\u76d8\u4e0d\u518d\u6392\u961f\uff0c\u4f60\u5728\u5e94\u7528\u5c42\u505a\u7684\u6bcf\u4e00\u4e2a\u4f18\u5316\u624d\u80fd\u771f\u6b63\u5151\u73b0\u6210\u7528\u6237\u53ef\u611f\u77e5\u7684\u901f\u5ea6\u3002<\/p>\n<h2>\u5ef6\u4f38\u9605\u8bfb<\/h2>\n<ul>\n<li><a href=\"https:\/\/cn.hostease.com\/blog\/server\/\">\u670d\u52a1\u5668\u5206\u7c7b\u6587\u7ae0\u6c47\u603b<\/a>\uff1a\u66f4\u591a\u5173\u4e8e<a href=\"https:\/\/cn.hostease.com\/blog\/server\/\">\u670d\u52a1\u5668\u914d\u7f6e<\/a>\u4e0e\u6027\u80fd\u4f18\u5316\u7684\u5b9e\u6218\u5185\u5bb9<\/li>\n<li><a href=\"https:\/\/cn.hostease.com\/vps\/\">VPS \u4e3b\u673a\u65b9\u6848<\/a>\uff1a\u4e2d\u5c0f\u89c4\u6a21\u7ad9\u70b9\u7684\u9ad8\u6027\u4ef7\u6bd4\u9009\u62e9<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u6559\u4f60\u5982\u4f55\u7528 iostat \u67e5\u770b\u78c1\u76d8\u6574\u4f53\u8d1f\u8f7d\uff0c\u7528 iotop \u627e\u51fa\u9ad8 IO \u8fdb\u7a0b\uff0c\u4e00\u6b65\u6b65\u5b9a\u4f4d\u670d\u52a1\u5668\u78c1\u76d8\u74f6\u9888\uff0c\u5e76\u7ed9\u51fa\u5e38\u89c1\u6162\u76d8\u573a\u666f\u7684\u5904\u7406\u5efa\u8bae\u3002<\/p>\n","protected":false},"author":2,"featured_media":33699,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3822],"tags":[4699,5304,5305,4701,4346],"class_list":["post-33702","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guides","tag-iostat","tag-iotop","tag-5305","tag-4701","tag-io"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/server-io-iostat-iotop-cover.webp","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/33702","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/comments?post=33702"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/33702\/revisions"}],"predecessor-version":[{"id":33703,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/33702\/revisions\/33703"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media\/33699"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media?parent=33702"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/categories?post=33702"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/tags?post=33702"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}