{"id":33427,"date":"2026-09-29T10:00:00","date_gmt":"2026-09-29T02:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=33427"},"modified":"2026-10-08T10:52:20","modified_gmt":"2026-10-08T02:52:20","slug":"server-ionice-nice-practical","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/guides\/server-ionice-nice-practical\/","title":{"rendered":"\u670d\u52a1\u5668\u5907\u4efd\u4e0d\u62d6\u57ae\u4e1a\u52a1\uff1aionice \u4e0e nice \u8c03\u5ea6\u5b9e\u6218"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/server-ionice-nice-practical-cover.webp\" alt=\"\u670d\u52a1\u5668\u5907\u4efd\u4e0d\u62d6\u57ae\u4e1a\u52a1\uff1aionice \u4e0e nice \u8c03\u5ea6\u5b9e\u6218\u5c01\u9762\u914d\u56fe\" loading=\"lazy\" \/><\/p>\n<p>\u51cc\u6668\u5907\u4efd\u4e00\u8dd1\uff0c\u7f51\u7ad9\u5c31\u5f00\u59cb\u5361\uff0c\u8ba2\u5355\u63d0\u4ea4\u8f6c\u5708\u3001\u540e\u53f0\u5237\u65b0\u534a\u5929\u4e0d\u51fa\u9875\u9762\u2014\u2014\u8fd9\u662f\u5f88\u591a\u7ad9\u957f\u90fd\u9047\u5230\u8fc7\u7684\u573a\u666f\u3002\u672c\u6587\u6559\u4f60\u5982\u4f55\u7528 Linux \u7684 ionice \u548c nice \u4e24\u4e2a\u547d\u4ee4\uff0c\u628a\u5907\u4efd\u4efb\u52a1\u5bf9\u78c1\u76d8\u548c CPU \u7684\u5360\u7528\u964d\u5230\u6700\u4f4e\uff0c\u5e2e\u52a9\u4f60\u5728\u4e0d\u505c\u4e1a\u52a1\u3001\u4e0d\u52a0\u670d\u52a1\u5668\u7684\u524d\u63d0\u4e0b\u89e3\u51b3\u201c\u5907\u4efd\u62d6\u57ae\u4e1a\u52a1\u201d\u7684\u95ee\u9898\u3002\u66f4\u591a<a href=\"https:\/\/cn.hostease.com\/blog\/server\/\">\u670d\u52a1\u5668\u914d\u7f6e\u4e0e\u4f18\u5316<\/a>\u7ecf\u9a8c\uff0c\u4e5f\u53ef\u4ee5\u5728\u7ad9\u957f\u5b66\u9662\u5206\u7c7b\u4e0b\u627e\u5230\u3002\u5168\u6587\u5305\u542b\u53ef\u76f4\u63a5\u590d\u5236\u7684 rsync\u3001mysqldump \u4e0e crontab \u914d\u7f6e\u793a\u4f8b\uff0c\u4ee5\u53ca\u5907\u4efd\u5b8c\u6210\u540e\u7684\u9a8c\u8bc1\u65b9\u6cd5\u3002<\/p>\n<h2>\u4e3a\u4ec0\u4e48\u5907\u4efd\u4f1a\u628a\u4e1a\u52a1\u62d6\u6162<\/h2>\n<p>\u8981\u89e3\u51b3\u95ee\u9898\uff0c\u5148\u8981\u77e5\u9053\u74f6\u9888\u5728\u54ea\u3002\u5907\u4efd\u6162\u548c\u4e1a\u52a1\u5361\uff0c\u672c\u8d28\u4e0a\u662f\u4e24\u7c7b\u8d44\u6e90\u5728\u6253\u67b6\uff1a<\/p>\n<ul>\n<li><strong>\u78c1\u76d8 IO<\/strong>\uff1a\u5907\u4efd\u672c\u8d28\u662f\u628a\u5927\u91cf\u6570\u636e\u4ece\u78c1\u76d8\u8bfb\u51fa\u6765\u518d\u5199\u5230\u522b\u5904\u3002\u666e\u901a\u8fdb\u7a0b\u9ed8\u8ba4\u4f7f\u7528\u6700\u4f73\u52aa\u529b\uff08best-effort\uff09IO \u8c03\u5ea6\u7ea7\u522b\uff0c\u5907\u4efd\u8fdb\u7a0b\u5927\u89c4\u6a21\u987a\u5e8f\u8bfb\u76d8\u65f6\uff0c\u4f1a\u62a2\u5360\u6570\u636e\u5e93\u548c\u7f51\u7ad9\u7a0b\u5e8f\u7684\u968f\u673a\u8bfb\u5199\u5e26\u5bbd\uff0c\u5bfc\u81f4\u67e5\u8be2\u54cd\u5e94\u65f6\u95f4\u4ece\u51e0\u6beb\u79d2\u6da8\u5230\u51e0\u767e\u6beb\u79d2\u3002<\/li>\n<li><strong>CPU<\/strong>\uff1a\u538b\u7f29\uff08gzip\u3001zstd\uff09\u3001\u52a0\u5bc6\uff08openssl\u3001gpg\uff09\u662f\u5907\u4efd\u94fe\u8def\u91cc\u6700\u5403 CPU \u7684\u73af\u8282\u3002\u5982\u679c\u5907\u4efd\u8fdb\u7a0b\u4ee5\u9ed8\u8ba4\u4f18\u5148\u7ea7\u8fd0\u884c\uff0c\u5185\u6838\u4f1a\u628a\u5b83\u548c PHP-FPM\u3001MySQL \u7b49\u4e1a\u52a1\u8fdb\u7a0b\u5e73\u7b49\u5bf9\u5f85\uff0cCPU \u6838\u5fc3\u4e00\u7d27\u5f20\uff0c\u4e1a\u52a1\u8bf7\u6c42\u5c31\u5f00\u59cb\u6392\u961f\u3002<\/li>\n<\/ul>\n<p>\u4e00\u4e2a\u771f\u5b9e\u7684\u4f8b\u5b50\uff1a\u4e00\u53f0 4 \u6838 8G \u7684 <a href=\"https:\/\/cn.hostease.com\/vps\/\">VPS\uff08\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668\uff09<\/a>\u4e0a\u8dd1 nightly rsync\uff0c\u5907\u4efd\u7a97\u53e3\u5185\u7f51\u7ad9\u5e73\u5747\u54cd\u5e94\u65f6\u95f4\u4ece 180ms \u6da8\u5230 1.4s\uff0cMySQL \u6162\u67e5\u8be2\u6570\u91cf\u7ffb\u4e86 6 \u500d\u3002\u6362\u7528 ionice \u964d\u7ea7\u540e\uff0c\u540c\u6837\u7684\u5907\u4efd\u8017\u65f6\u53ea\u589e\u52a0\u4e86\u7ea6 15%\uff0c\u4f46\u4e1a\u52a1\u54cd\u5e94\u65f6\u95f4\u51e0\u4e4e\u4e0d\u53d7\u5f71\u54cd\u3002<\/p>\n<p>\u5224\u65ad\u4f60\u7684\u5907\u4efd\u662f\u5426\u6b63\u5728\u5f71\u54cd\u4e1a\u52a1\uff0c\u53ef\u4ee5\u7528\u8fd9\u4e24\u4e2a\u547d\u4ee4\u5728\u5907\u4efd\u65f6\u6bb5\u89c2\u5bdf\uff1a<\/p>\n<pre><code class=\"language-bash\"># \u67e5\u770b\u54ea\u4e9b\u8fdb\u7a0b\u6b63\u5728\u5360\u7528 IO\niotop -oP\n\n# \u67e5\u770b\u5404\u8fdb\u7a0b\u7684 CPU \u5360\u7528\u4e0e nice \u503c\ntop -b -n 1 | head -20\n<\/code><\/pre>\n<p>\u5982\u679c iotop \u91cc\u5907\u4efd\u8fdb\u7a0b\u7684 IO \u5360\u7528\u957f\u671f\u5728 80% \u4ee5\u4e0a\uff0c\u57fa\u672c\u53ef\u4ee5\u786e\u8ba4\u74f6\u9888\u5728\u78c1\u76d8\u3002<\/p>\n<h2>ionice\uff1a\u7ed9\u5907\u4efd\u4efb\u52a1\u964d\u4f4e IO \u4f18\u5148\u7ea7<\/h2>\n<p>ionice \u63a7\u5236\u7684\u662f\u8fdb\u7a0b\u5bf9\u78c1\u76d8\u7684\u8bbf\u95ee\u4f18\u5148\u7ea7\uff0cLinux \u628a IO \u8c03\u5ea6\u5206\u4e3a 3 \u4e2a\u7ea7\u522b\uff1a<\/p>\n<ul>\n<li><strong>Idle\uff083 \u7ea7\uff09<\/strong>\uff1a\u53ea\u6709\u78c1\u76d8\u7a7a\u95f2\u65f6\u624d\u6267\u884c IO\uff0c\u5bf9\u4e1a\u52a1\u51e0\u4e4e\u96f6\u5f71\u54cd\uff0c\u4ee3\u4ef7\u662f\u5907\u4efd\u901f\u5ea6\u6700\u6162\u3002<\/li>\n<li><strong>Best-effort\uff082 \u7ea7\uff09<\/strong>\uff1a\u9ed8\u8ba4\u7ea7\u522b\uff0c\u6309\u4f18\u5148\u6743\u503c\uff080-7\uff0c\u6570\u5b57\u8d8a\u5c0f\u4f18\u5148\u7ea7\u8d8a\u9ad8\uff09\u4e0e\u5176\u4ed6\u8fdb\u7a0b\u7ade\u4e89\u78c1\u76d8\u3002<\/li>\n<li><strong>Real-time\uff081 \u7ea7\uff09<\/strong>\uff1a\u4f18\u5148\u4e8e\u6240\u6709\u666e\u901a IO\uff0c\u5907\u4efd\u4efb\u52a1\u7edd\u5bf9\u4e0d\u8981\u7528\u8fd9\u4e2a\u7ea7\u522b\uff0c\u5426\u5219\u7b49\u4e8e\u53cd\u8fc7\u6765\u62a2\u5360\u4e1a\u52a1\u3002<\/li>\n<\/ul>\n<p>\u5bf9\u5907\u4efd\u4efb\u52a1\u6765\u8bf4\uff0cIdle \u7ea7\u522b\u662f\u6700\u5b89\u5168\u7684\u9009\u62e9\u3002\u5b9e\u9645\u7528\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"language-bash\"># \u4ee5 Idle \u7ea7\u522b\u6267\u884c rsync \u5907\u4efd\nionice -c 3 rsync -a \/var\/www\/ \/backup\/www\/\n\n# \u4ee5 Best-effort \u7ea7\u522b + \u6700\u4f4e\u4f18\u5148\u6743\u503c\u6267\u884c\nionice -c 2 -n 7 tar -czf \/backup\/etc.tar.gz \/etc\n<\/code><\/pre>\n<p>\u4e24\u8005\u600e\u4e48\u9009\uff1f\u5982\u679c\u5907\u4efd\u7a97\u53e3\u5145\u8db3\uff08\u6bd4\u5982\u51cc\u6668 1 \u70b9\u5f00\u59cb\u3001\u65e9\u4e0a 6 \u70b9\u524d\u5b8c\u6210\u5373\u53ef\uff09\uff0c\u76f4\u63a5\u7528 <code>-c 3<\/code>\uff0c\u4e1a\u52a1\u5b8c\u5168\u65e0\u611f\u3002\u5982\u679c\u6570\u636e\u91cf\u5927\u3001\u5fc5\u987b\u5c3d\u5feb\u5907\u5b8c\uff0c\u53ef\u4ee5\u7528 <code>-c 2 -n 7<\/code>\uff0c\u5b83\u4ecd\u4f1a\u53c2\u4e0e\u78c1\u76d8\u7ade\u4e89\uff0c\u4f46\u4f18\u5148\u7ea7\u4f4e\u4e8e\u6240\u6709\u6b63\u5e38\u4e1a\u52a1 IO\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u4e00\u70b9\uff1aionice \u7684\u6548\u679c\u4f9d\u8d56 IO \u8c03\u5ea6\u5668\u3002\u5728\u8f83\u65b0\u7684\u5185\u6838\u4e0a\u9ed8\u8ba4\u4f7f\u7528 mq-deadline \u6216 bfq\uff0cionice \u90fd\u80fd\u6b63\u5e38\u751f\u6548\uff1b\u5982\u679c\u4f60\u7684\u7cfb\u7edf\u8fd8\u5728\u7528\u53e4\u8001\u7684 noop \u6216 none \u8c03\u5ea6\u5668\uff08\u5e38\u89c1\u4e8e\u672c\u5730 NVMe \u76f4\u901a\u573a\u666f\uff09\uff0c\u53ef\u4ee5\u7528 <code>cat \/sys\/block\/vda\/queue\/scheduler<\/code> \u786e\u8ba4\uff0c\u5fc5\u8981\u65f6\u5207\u6362\u5230 bfq \u624d\u80fd\u8ba9 Idle \u7ea7\u522b\u771f\u6b63\u53d1\u6325\u4f5c\u7528\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/server-ionice-nice-scheduling.webp\" alt=\"ionice IO \u8c03\u5ea6\u4e09\u7ea7\u4f18\u5148\u7ea7\u4e0e\u78c1\u76d8\u7a7a\u95f2\u5173\u7cfb\u793a\u610f\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>nice\uff1a\u7ed9\u5907\u4efd\u4efb\u52a1\u964d\u4f4e CPU \u4f18\u5148\u7ea7<\/h2>\n<p>nice \u63a7\u5236\u7684\u662f CPU \u8c03\u5ea6\u4f18\u5148\u7ea7\uff0c\u53d6\u503c\u8303\u56f4 -20 \u5230 19\uff0c\u6570\u5b57\u8d8a\u5927\u4f18\u5148\u7ea7\u8d8a\u4f4e\u3002\u666e\u901a\u7528\u6237\u53ea\u80fd\u628a\u8fdb\u7a0b\u7684 nice \u503c\u8c03\u9ad8\uff08\u66f4\u8c26\u8ba9\uff09\uff0c\u53ea\u6709 root \u624d\u80fd\u8c03\u5230\u8d1f\u503c\u3002\u5907\u4efd\u4efb\u52a1\u5e94\u8be5\u4f7f\u7528\u8f83\u9ad8\u7684 nice \u503c\uff0c\u628a CPU \u4e3b\u52a8\u8ba9\u7ed9\u4e1a\u52a1\u8fdb\u7a0b\uff1a<\/p>\n<pre><code class=\"language-bash\"># nice \u503c 19\uff1a\u6700\u4f4e CPU \u4f18\u5148\u7ea7\nnice -n 19 gzip \/backup\/log\/large.log\n\n# \u538b\u7f29\u7b97\u6cd5\u672c\u8eab\u5f88\u5403 CPU\uff0c\u914d\u5408 ionice \u4e00\u8d77\u7528\nnice -n 19 ionice -c 3 tar -czf \/backup\/www-$(date +\\%F).tar.gz \/var\/www\/\n<\/code><\/pre>\n<p>\u4e0a\u9762\u7684\u6700\u540e\u4e00\u884c\u5c31\u662f\u201c\u5907\u4efd\u4e0d\u62d6\u57ae\u4e1a\u52a1\u201d\u7684\u6807\u51c6\u5199\u6cd5\uff1anice \u7ba1 CPU\uff0cionice \u7ba1 IO\uff0c\u4e24\u4e2a\u547d\u4ee4\u7ec4\u5408\u8d77\u6765\uff0c\u5907\u4efd\u8fdb\u7a0b\u53d8\u6210\u4e00\u4e2a\u201c\u53ea\u5728\u7cfb\u7edf\u7a7a\u95f2\u65f6\u5e72\u6d3b\u201d\u7684 Background \u4efb\u52a1\u3002\u5b9e\u6d4b\u5728\u4e00\u53f0 2 \u6838\u7684<a href=\"https:\/\/cn.hostease.com\/web-hosting\/\">\u865a\u62df\u4e3b\u673a<\/a>\u7ea7\u522b\u670d\u52a1\u5668\u4e0a\uff0c\u8fd9\u5957\u7ec4\u5408\u8ba9\u5907\u4efd\u671f\u95f4\u7684 CPU idle \u4ece 12% \u56de\u5347\u5230 55% \u4ee5\u4e0a\uff0c\u7f51\u7ad9\u9996\u5c4f\u65f6\u95f4\u57fa\u672c\u56de\u5230\u6b63\u5e38\u6c34\u5e73\u3002<\/p>\n<p>crontab \u4e2d\u65e5\u671f\u683c\u5f0f\u9700\u8981\u8f6c\u4e49\uff0c<code>date +\\%F<\/code> \u91cc\u7684\u53cd\u659c\u6760\u4e0d\u80fd\u7701\uff0c\u5426\u5219 cron \u65e5\u5fd7\u4f1a\u62a5\u9519\u3002<\/p>\n<h2>\u5b8c\u6574\u5b9e\u6218\uff1acrontab \u914d\u7f6e\u4e0e\u9a8c\u8bc1<\/h2>\n<p>\u628a\u524d\u9762\u7684\u547d\u4ee4\u7ec4\u5408\u6210\u5b9a\u65f6\u4efb\u52a1\uff0c\u4e0b\u9762\u662f\u4e00\u4e2a\u53ef\u4ee5\u76f4\u63a5\u7528\u7684 crontab \u793a\u4f8b\uff1a<\/p>\n<pre><code class=\"language-bash\"># \u6bcf\u5929\u51cc\u6668 1:30 \u6267\u884c\u7f51\u7ad9\u76ee\u5f55\u5907\u4efd\uff08\u4f4e\u4f18\u5148\u7ea7\uff09\n30 1 * * * nice -n 19 ionice -c 3 rsync -a --delete \/var\/www\/ \/backup\/www\/\n\n# \u6bcf\u5468\u65e5\u51cc\u6668 2:30 \u6267\u884c\u6570\u636e\u5e93\u903b\u8f91\u5907\u4efd\n30 2 * * 0 nice -n 19 ionice -c 3 mysqldump -u\u5907\u4efd\u7528\u6237 -p'\u5bc6\u7801' --single-transaction --all-databases | gzip &gt; \/backup\/db-$(date +\\%F).sql.gz\n<\/code><\/pre>\n<p>\u4e24\u4e2a\u7ec6\u8282\u503c\u5f97\u5355\u72ec\u8bf4\u660e\uff1a<\/p>\n<ul>\n<li><strong>mysqldump \u52a0 <code>--single-transaction<\/code><\/strong>\uff1a\u5bf9 InnoDB \u8868\u505a\u4e00\u81f4\u6027\u5feb\u7167\uff0c\u5907\u4efd\u671f\u95f4\u4e0d\u9700\u8981\u9501\u5168\u8868\uff0c\u4e1a\u52a1\u5199\u5165\u4e0d\u53d7\u5f71\u54cd\u3002<\/li>\n<li><strong>\u4e13\u7528\u4f4e\u6743\u9650\u5907\u4efd\u8d26\u53f7<\/strong>\uff1a\u53ea\u6388\u4e88 <code>SELECT<\/code> \u548c <code>LOCK TABLES<\/code> \u6743\u9650\uff0c\u5373\u4f7f\u5907\u4efd\u811a\u672c\u6cc4\u9732\u4e5f\u4e0d\u4f1a\u6ce2\u53ca\u6574\u4e2a\u6570\u636e\u5e93\u3002<\/li>\n<\/ul>\n<p>\u914d\u7f6e\u5b8c\u6210\u540e\uff0c\u600e\u4e48\u9a8c\u8bc1\u964d\u7ea7\u771f\u7684\u751f\u6548\u4e86\uff1f\u5728\u5907\u4efd\u8fd0\u884c\u65f6\u6267\u884c\uff1a<\/p>\n<pre><code class=\"language-bash\"># \u67e5\u770b\u5907\u4efd\u8fdb\u7a0b\u5b9e\u9645\u7684 nice \u503c\u548c IO \u8c03\u5ea6\u7ea7\u522b\uff08ni \u5217\u5e94\u4e3a 19\uff0cionice \u5e94\u663e\u793a idle\uff09\nps -eo pid,ni,cls,cmd | grep -E 'rsync|mysqldump'\n<\/code><\/pre>\n<p><code>cls<\/code> \u5217\u663e\u793a 3 \u5c31\u4ee3\u8868 Idle \u7ea7\u522b\u5df2\u751f\u6548\u3002\u5982\u679c\u53d1\u73b0 nice \u503c\u6216 IO \u7ea7\u522b\u4e0d\u5bf9\uff0c\u591a\u6570\u662f cron \u73af\u5883\u91cc\u6ca1\u8d70\u5b8c\u6574\u7684\u547d\u4ee4\u524d\u7f00\uff0c\u68c0\u67e5 crontab \u91cc\u662f\u5426\u6f0f\u5199\u4e86 <code>nice<\/code> \u6216 <code>ionice<\/code>\u3002\u5982\u679c\u670d\u52a1\u5668\u957f\u671f\u9ad8\u8d1f\u8f7d\uff0c\u4e5f\u53ef\u4ee5\u8bc4\u4f30\u5347\u7ea7\u5230<a href=\"https:\/\/cn.hostease.com\/dedicated-server\/\">\u72ec\u7acb\u670d\u52a1\u5668<\/a>\uff0c\u628a\u78c1\u76d8 IO \u9762\u8c8c\u6574\u4e2a\u6362\u6389\u3002<\/p>\n<p>\u53e6\u5916\u5efa\u8bae\u4fdd\u7559\u4e00\u4efd\u5907\u4efd\u5b8c\u6210\u65f6\u95f4\u7684\u8bb0\u5f55\uff0c\u89c2\u5bdf\u4e00\u5468\uff1a\u5982\u679c\u7528 Idle \u7ea7\u522b\u540e\u5907\u4efd\u603b\u65f6\u957f\u8d85\u8fc7\u4e86\u9884\u7559\u7a97\u53e3\uff0c\u53ef\u4ee5\u9000\u56de\u5230 <code>-c 2 -n 7<\/code>\uff0c\u5728\u201c\u4e0d\u5f71\u54cd\u4e1a\u52a1\u201d\u548c\u201c\u6309\u65f6\u5907\u5b8c\u201d\u4e4b\u95f4\u627e\u4e00\u4e2a\u5e73\u8861\u70b9\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/server-ionice-nice-verification.webp\" alt=\"\u5907\u4efd\u65f6\u6bb5\u4f4e\u4f18\u5148\u7ea7\u8fd0\u884c\u4e0e\u4e1a\u52a1\u54cd\u5e94\u5bf9\u6bd4\u793a\u610f\" loading=\"lazy\" \/><\/p>\n<h2>\u51e0\u4e2a\u5bb9\u6613\u8e29\u7684\u5751<\/h2>\n<p>\u7b2c\u4e00\uff0cionice \u4e0d\u662f\u4e07\u80fd\u7684\u3002\u5b83\u53ea\u7ea6\u675f\u201c\u5757\u8bbe\u5907\u5c42\u201d\u7684 IO\uff0c\u5982\u679c\u5907\u4efd\u5199\u5230 NFS\uff08\u7f51\u7edc\u6587\u4ef6\u7cfb\u7edf\uff09\u6216\u5bf9\u8c61\u5b58\u50a8\u6302\u8f7d\u70b9\uff0c\u8c03\u5ea6\u7ea7\u522b\u5bf9\u7f51\u7edc\u4f20\u8f93\u672c\u8eab\u4e0d\u8d77\u4f5c\u7528\uff0c\u8fd9\u65f6\u74f6\u9888\u8981\u4ece\u5e26\u5bbd\uff08\u7f51\u7edc\u4f20\u8f93\u7684\u6570\u636e\u541e\u5410\u80fd\u529b\uff09\u89d2\u5ea6\u53e6\u884c\u5904\u7406\u3002\u7b2c\u4e8c\uff0c\u67d0\u4e9b\u4e91\u76d8\u548c RAID \u5361\u81ea\u5e26\u5199\u7f13\u5b58\uff0cIdle \u7ea7\u522b\u7684\u5b9e\u9645\u6548\u679c\u53d6\u51b3\u4e8e\u786c\u4ef6\u961f\u5217\u7684\u8868\u73b0\uff0c\u4e0a\u7ebf\u524d\u5efa\u8bae\u5148\u5728\u4e1a\u52a1\u4f4e\u5cf0\u8bd5\u8fd0\u884c\u4e00\u665a\uff0c\u5bf9\u6bd4\u5907\u4efd\u524d\u540e\u7684\u54cd\u5e94\u65f6\u95f4\u66f2\u7ebf\u3002\u8fd9\u7c7b\u201c\u54cd\u5e94\u65f6\u95f4\u5ffd\u9ad8\u5ffd\u4f4e\u201d\u7684\u95ee\u9898\uff0c\u4e0e\u6211\u4eec\u4e4b\u524d\u804a\u8fc7\u7684<a href=\"https:\/\/cn.hostease.com\/blog\/guides\/ttfb-hosting-optimization\/\">\u7f51\u7ad9\u6027\u80fd\u4f18\u5316<\/a>\u601d\u8def\u662f\u4e00\u8109\u76f8\u627f\u7684\uff0c\u90fd\u5f3a\u8c03\u5148\u6d4b\u91cf\u3001\u518d\u52a8\u624b\u3002\u7b2c\u4e09\uff0c\u522b\u5fd8\u4e86\u76d1\u63a7\u5907\u4efd\u662f\u5426\u771f\u7684\u5b8c\u6210\u4e86\u2014\u2014\u4f4e\u4f18\u5148\u7ea7\u610f\u5473\u7740\u53ef\u80fd\u88ab\u63a8\u8fdf\uff0c\u4efb\u52a1\u5931\u8d25\u8981\u80fd\u53ca\u65f6\u544a\u8b66\uff0c\u5426\u5219\u4f60\u4ee5\u4e3a\u6709\u5907\u4efd\uff0c\u5b9e\u9645\u4e0a\u5907\u4efd\u65e9\u5c31\u6ca1\u8dd1\u6210\u529f\u4e86\u3002<\/p>\n<h2>\u603b\u7ed3\u4e0e\u884c\u52a8\u5efa\u8bae<\/h2>\n<p>\u89e3\u51b3\u5907\u4efd\u62d6\u57ae\u4e1a\u52a1\uff0c\u6838\u5fc3\u601d\u8def\u5c31\u4e00\u53e5\u8bdd\uff1a\u628a\u5907\u4efd\u8fdb\u7a0b\u7684 CPU \u548c IO \u4f18\u5148\u7ea7\u90fd\u964d\u4e0b\u6765\uff0c\u8ba9\u5b83\u53ea\u5728\u7cfb\u7edf\u7a7a\u95f2\u65f6\u5de5\u4f5c\u3002\u5177\u4f53\u884c\u52a8\u5efa\u8bae\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u7acb\u5373\u68c0\u67e5\u73b0\u6709 crontab \u4e2d\u7684\u5907\u4efd\u4efb\u52a1\uff0c\u7ed9\u5b83\u4eec\u52a0\u4e0a <code>nice -n 19 ionice -c 3<\/code> \u524d\u7f00\u3002<\/li>\n<li>\u7528 <code>ps -eo pid,ni,cls,cmd<\/code> \u9a8c\u8bc1\u964d\u7ea7\u751f\u6548\uff0c\u5e76\u5728\u5907\u4efd\u65f6\u6bb5\u5bf9\u6bd4\u7f51\u7ad9\u54cd\u5e94\u65f6\u95f4\u3002<\/li>\n<li>\u6570\u636e\u5e93\u5907\u4efd\u52a1\u5fc5\u52a0 <code>--single-transaction<\/code>\uff0c\u5e76\u4f7f\u7528\u4f4e\u6743\u9650\u4e13\u7528\u8d26\u53f7\u3002<\/li>\n<li>\u5982\u679c\u4f60\u9700\u8981\u66f4\u7701\u5fc3\u7684\u65b9\u6848\uff0c\u4e5f\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u5e26\u72ec\u7acb\u5907\u4efd\u80fd\u529b\u7684<a href=\"https:\/\/cn.hostease.com\/web-hosting\/\">\u865a\u62df\u4e3b\u673a<\/a>\u4ea7\u54c1\uff0c\u7531\u9762\u677f\u81ea\u52a8\u5b8c\u6210\u6bcf\u65e5\u5907\u4efd\uff0c\u4f8b\u5982 Hostease \u7684\u865a\u62df\u4e3b\u673a\u81ea\u5e26\u5b9a\u671f\u5907\u4efd\u529f\u80fd\uff0c\u53ef\u4ee5\u628a\u8fd0\u7ef4\u7cbe\u529b\u7559\u7ed9\u4e1a\u52a1\u672c\u8eab\u3002<\/li>\n<li>\u5907\u4efd\u7b56\u7565\u5efa\u8bae\u6bcf\u5b63\u5ea6\u590d\u67e5\u4e00\u6b21\uff1a\u6570\u636e\u91cf\u589e\u957f\u540e\uff0c\u539f\u6765\u7684 Idle \u7ea7\u522b\u53ef\u80fd\u8dd1\u4e0d\u5b8c\uff0c\u63d0\u524d\u8c03\u6574\u6bd4\u5907\u4efd\u8d85\u65f6\u540e\u8865\u6551\u8981\u7a33\u59a5\u5f97\u591a\u3002<\/li>\n<\/ul>\n<p>\u5907\u4efd\u662f\u8fd0\u7ef4\u7684\u6700\u540e\u4e00\u6761\u9632\u7ebf\uff0c\u503c\u5f97\u82b1\u534a\u5c0f\u65f6\u628a\u4f18\u5148\u7ea7\u8c03\u597d\u2014\u2014\u4e00\u6b21\u914d\u7f6e\uff0c\u957f\u671f\u53d7\u76ca\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6559\u4f60\u5982\u4f55\u7528 ionice \u4e0e nice \u7ed9\u5907\u4efd\u4efb\u52a1\u964d\u7ea7\uff0c\u89e3\u51b3\u5907\u4efd\u65f6\u6bb5\u4e1a\u52a1\u5361\u987f\u95ee\u9898\uff0c\u9644 rsync\u3001mysqldump\u3001crontab \u5b8c\u6574\u914d\u7f6e\u793a\u4f8b\u4e0e\u9a8c\u8bc1\u65b9\u6cd5\u3002<\/p>\n","protected":false},"author":2,"featured_media":33424,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3822],"tags":[5175,5176,5177,50,4346],"class_list":["post-33427","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guides","tag-ionice","tag-nice","tag-5177","tag-50","tag-io"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/server-ionice-nice-practical-cover.webp","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/33427","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=33427"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/33427\/revisions"}],"predecessor-version":[{"id":33443,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/33427\/revisions\/33443"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media\/33424"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media?parent=33427"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/categories?post=33427"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/tags?post=33427"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}