{"id":3249,"date":"2026-10-24T10:30:00","date_gmt":"2026-10-24T02:30:00","guid":{"rendered":"https:\/\/www.ygcloud.com\/knowledge\/?p=3249"},"modified":"2026-10-26T16:26:55","modified_gmt":"2026-10-26T08:26:55","slug":"vps-overselling-detection","status":"publish","type":"post","link":"https:\/\/www.ygcloud.com\/knowledge\/3249\/","title":{"rendered":"VPS \u8d85\u552e\u662f\u4ec0\u4e48\uff1f\u600e\u4e48\u5224\u65ad\u4e00\u53f0\u4fbf\u5b9c VPS \u6709\u6ca1\u6709\u8d85\u552e"},"content":{"rendered":"<p>\u5148\u8bf4\u7ed3\u8bba\uff1aVPS \u8d85\u552e\u662f\u884c\u4e1a\u5e38\u6001\uff0c\u51e0\u4e4e\u6240\u6709\u5171\u4eab\u578b\u4ea7\u54c1\u90fd\u5728\u8d85\u552e\uff0c\u5173\u952e\u4e0d\u662f\u201c\u6709\u6ca1\u6709\u8d85\u201d\uff0c\u800c\u662f\u201c\u8d85\u4e86\u4e4b\u540e\u6709\u6ca1\u6709\u5f71\u54cd\u5230\u4f60\u201d\u3002\u5224\u65ad\u65b9\u6cd5\u4e5f\u4e0d\u795e\u79d8\uff1a\u770b CPU steal\u3001\u5185\u5b58 swap\u3001\u78c1\u76d8 await \u548c\u4e0d\u540c\u65f6\u6bb5\u7684\u7f51\u7edc\uff0c\u56db\u9879\u91cc\u6709\u4e24\u9879\u6301\u7eed\u5f02\u5e38\uff0c\u8fd9\u53f0\u673a\u5668\u5c31\u4e0d\u9002\u5408\u653e\u751f\u4ea7\u3002<\/p>\n<p>\u5f88\u591a\u4eba\u5224\u65ad\u8d85\u552e\u53ea\u770b\u201c\u51e0\u6838\u51e0 G\u201d\uff0c\u8fd9\u6070\u6070\u662f\u6700\u5bb9\u6613\u88ab\u5305\u88c5\u7684\u90e8\u5206\u3002vCPU \u662f\u65f6\u95f4\u7247\uff0c\u4e0d\u662f\u7269\u7406\u6838\u5fc3\uff1b\u5185\u5b58\u53ef\u4ee5 overcommit\uff1b\u78c1\u76d8\u53ef\u4ee5 thin provisioning\uff1b\u5e26\u5bbd\u53ef\u4ee5\u5171\u4eab\u3002\u4e0b\u9762\u6309\u201c\u8d85\u552e\u5230\u5e95\u662f\u4ec0\u4e48 \u2192 \u56db\u79cd\u68c0\u6d4b\u65b9\u6cd5 \u2192 \u4e70\u524d\u600e\u4e48\u95ee\u201d\u8bb2\u6e05\u695a\u3002<\/p>\n<h2 id=\"\u8d85\u552e\u5230\u5e95\u662f\u4ec0\u4e48\">\u8d85\u552e\u5230\u5e95\u662f\u4ec0\u4e48<\/h2>\n<p>\u5bbf\u4e3b\u673a\u8d44\u6e90\u6709\u9650\uff0c\u670d\u52a1\u5546\u628a\u540c\u4e00\u4efd\u7269\u7406\u8d44\u6e90\u5356\u7ed9\u591a\u4e2a\u7528\u6237\uff0c\u5c31\u662f\u8d85\u552e\u3002\u5e38\u89c1\u7684\u6709\u56db\u5c42\uff1a<\/p>\n<ul>\n<li><strong>CPU \u8d85\u5206<\/strong>\uff1a\u4f60\u4e70\u5230\u7684\u662f vCPU \u65f6\u95f4\u7247\uff0c\u5bbf\u4e3b\u673a\u4e0a\u6240\u6709\u865a\u62df\u673a\u7684 vCPU \u603b\u6570\u53ef\u4ee5\u8d85\u8fc7\u7269\u7406\u6838\u5fc3\u6570\u3002\u7a7a\u95f2\u65f6\u4f60\u8dd1\u5f97\u5f88\u5feb\uff0c\u90bb\u5c45\u5fd9\u65f6\u4f60\u5c31\u5f97\u6392\u961f\u3002<\/li>\n<li><strong>\u5185\u5b58 overcommit<\/strong>\uff1a\u5bbf\u4e3b\u673a\u5206\u914d\u7684\u865a\u62df\u5185\u5b58\u53ef\u4ee5\u8d85\u8fc7\u7269\u7406\u5185\u5b58\uff0c\u9760 ballooning\u3001KSM \u548c swap \u515c\u5e95\u3002\u5185\u5b58\u538b\u529b\u5927\u65f6\uff0c\u4f60\u7684\u8fdb\u7a0b\u4f1a\u88ab\u6362\u51fa\u751a\u81f3 OOM\u3002<\/li>\n<li><strong>\u78c1\u76d8 thin provisioning<\/strong>\uff1a\u6807\u79f0\u78c1\u76d8\u5171\u4eab\u540c\u4e00\u7ec4 SSD\uff0cIOPS \u548c\u541e\u5410\u6309\u7b56\u7565\u9650\u901f\uff1b\u90bb\u5c45\u8dd1\u5927 IO \u65f6\uff0c\u4f60\u7684\u5ef6\u8fdf\u4f1a\u6296\u3002<\/li>\n<li><strong>\u5e26\u5bbd\u5171\u4eab<\/strong>\uff1a\u6807\u79f0 100Mbps \u5f80\u5f80\u662f\u5171\u4eab\u4e0a\u884c\uff0c\u7a7a\u95f2\u65f6\u80fd\u8dd1\u6ee1\uff0c\u9ad8\u5cf0\u65f6\u5927\u5bb6\u5206\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u56db\u5c42\u91cc\uff0c\u9002\u5ea6\u7684 CPU \u8d85\u5206\u548c\u5e26\u5bbd\u5171\u4eab\u53ef\u4ee5\u63a5\u53d7\uff0c\u56e0\u4e3a\u5b83\u4eec\u5229\u7528\u7684\u662f\u7a7a\u95f2\u8d44\u6e90\uff1b\u6301\u7eed\u7684\u5185\u5b58\u538b\u529b\u548c\u78c1\u76d8 IO \u4e89\u62a2\u4e0d\u80fd\u63a5\u53d7\uff0c\u56e0\u4e3a\u5b83\u4eec\u4f1a\u76f4\u63a5\u62d6\u57ae\u4e1a\u52a1\u3002<\/p>\n<h2 id=\"\u65b9\u6cd5\u4e00\u770b\u770b-cpu-steal\">\u65b9\u6cd5\u4e00\uff1a\u770b CPU steal<\/h2>\n<p>\u8fd9\u662f\u6700\u76f4\u63a5\u7684\u6307\u6807\u3002Linux \u91cc <code>steal<\/code> \u8868\u793a\u865a\u62df\u673a\u60f3\u7528 CPU\u3001\u4f46\u7269\u7406 CPU \u88ab\u5bbf\u4e3b\u673a\u6216\u522b\u7684\u865a\u62df\u673a\u5360\u7740\uff0c\u53ea\u80fd\u7b49\u7684\u65f6\u95f4\u5360\u6bd4\u3002<\/p>\n<pre><code>top\n# \u770b %Cpu(s) \u884c\u91cc\u7684 st\uff08steal\uff09\nvmstat 1 5\n# \u770b st \u5217\nsar -u 1 5<\/code><\/pre>\n<p>\u5224\u65ad\u6807\u51c6\uff1a\u5076\u53d1 1% \u5230 2% \u5f88\u6b63\u5e38\uff1b\u6301\u7eed 5% \u4ee5\u4e0a\u8bf4\u660e\u90bb\u5c45\u5728\u62a2\uff1b\u6301\u7eed 10% \u4ee5\u4e0a\uff0c\u4f60\u7684\u5ef6\u8fdf\u654f\u611f\u578b\u4e1a\u52a1\u57fa\u672c\u6ca1\u6cd5\u8dd1\u3002\u6ce8\u610f\u8981\u5728\u4e1a\u52a1\u9ad8\u5cf0\u548c\u4f4e\u8c37\u5206\u522b\u770b\uff0c\u53ea\u770b\u67d0\u4e00\u5206\u949f\u6ca1\u6709\u610f\u4e49\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img width=\"1280\" height=\"720\" src=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/2fc2932d25f1b66.jpg\" alt=\"CPU \u82af\u7247\u88ab\u5207\u6210\u591a\u4e2a\u53d1\u5149\u65f6\u95f4\u7247\u7531\u5bb9\u5668\u5171\u4eab\" class=\"wp-image-3246\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/2fc2932d25f1b66.jpg 1280w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/2fc2932d25f1b66-300x169.jpg 300w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/2fc2932d25f1b66-1024x576.jpg 1024w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/2fc2932d25f1b66-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption>vCPU \u662f\u65f6\u95f4\u7247\uff0c\u4e0d\u662f\u7269\u7406\u6838\u5fc3\uff1bsteal \u5c31\u662f\u6392\u961f\u7b49\u5f85\u7684\u65f6\u95f4\u3002<\/figcaption><\/figure>\n<h2 id=\"\u65b9\u6cd5\u4e8c\u770b\u5185\u5b58\u548c-swap\">\u65b9\u6cd5\u4e8c\uff1a\u770b\u5185\u5b58\u548c swap<\/h2>\n<pre><code>free -m\nvmstat 1 5\n# \u770b si\/so\uff0c\u6301\u7eed\u975e 0 \u8bf4\u660e\u5728\u6362\u9875\ndmesg | grep -i -E 'oom|killed process'<\/code><\/pre>\n<p>\u5982\u679c\u673a\u5668\u6ca1\u8dd1\u4ec0\u4e48\u5927\u7a0b\u5e8f\uff0c\u5185\u5b58\u5374\u957f\u671f\u63a5\u8fd1\u6ee1\u3001swap \u6301\u7eed\u8bfb\u5199\uff0c\u6216\u8005 dmesg \u91cc\u6709 OOM \u8bb0\u5f55\uff0c\u8bf4\u660e\u5185\u5b58\u88ab\u8d85\u552e\u538b\u5230\u4e86\u3002\u53e6\u4e00\u79cd\u60c5\u51b5\u662f\u201c\u6807\u79f0 2G\uff0c\u5b9e\u9645\u53ef\u7528 1.7G\u201d\uff0c\u90a3\u662f\u7cfb\u7edf\u4fdd\u7559\u548c\u865a\u62df\u5316\u5f00\u9500\uff0c\u4e0d\u4e00\u5b9a\u662f\u8d85\u552e\uff0c\u4f46\u4e70\u4e4b\u524d\u8981\u95ee\u6e05\u695a\u3002<\/p>\n<h2 id=\"\u65b9\u6cd5\u4e09\u770b\u78c1\u76d8-io\">\u65b9\u6cd5\u4e09\uff1a\u770b\u78c1\u76d8 IO<\/h2>\n<pre><code>iostat -x 1 5\n# \u91cd\u70b9\u770b %util\u3001await\u3001r_await\u3001w_await\nfio --name=randrw --filename=test --size=1G --bs=4k \\\n  --iodepth=64 --ioengine=libaio --direct=1 --rw=randrw --rwmixread=75<\/code><\/pre>\n<p>SSD \u4e0a <code>await<\/code> \u957f\u671f\u9ad8\u4e8e 20ms\u3001<code>%util<\/code> \u8d34\u7740 100%\uff0c\u8bf4\u660e IO \u5df2\u7ecf\u5728\u6392\u961f\u3002\u66f4\u9690\u853d\u7684\u662f\u201c\u5e73\u65f6\u5f88\u5feb\u3001\u6574\u70b9\u5f88\u6162\u201d\uff0c\u90a3\u662f\u90bb\u5c45\u7684\u5907\u4efd\u6216\u8dd1\u6279\u4efb\u52a1\u3002\u6d4b IO \u8981\u6d4b\u4e09\u6b21\uff1a\u4e0b\u5348\u3001\u665a\u9ad8\u5cf0\u3001\u51cc\u6668\uff0c\u770b\u65b9\u5dee\u6bd4\u770b\u5355\u6b21\u6570\u503c\u66f4\u6709\u7528\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img width=\"1280\" height=\"720\" src=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/fb45b49f5a7ca3c.jpg\" alt=\"\u78c1\u76d8\u76d8\u7247\u4e0a\u6392\u7740\u7b49\u5f85\u5904\u7406\u7684\u8bf7\u6c42\u961f\u5217\" class=\"wp-image-3247\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/fb45b49f5a7ca3c.jpg 1280w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/fb45b49f5a7ca3c-300x169.jpg 300w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/fb45b49f5a7ca3c-1024x576.jpg 1024w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/fb45b49f5a7ca3c-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption>SSD \u4e0a await \u957f\u671f\u9ad8\u4e8e 20ms\uff0c\u8bf4\u660e IO \u5df2\u7ecf\u5728\u6392\u961f\u3002<\/figcaption><\/figure>\n<h2 id=\"\u65b9\u6cd5\u56db\u770b\u7f51\u7edc\">\u65b9\u6cd5\u56db\uff1a\u770b\u7f51\u7edc<\/h2>\n<pre><code>iperf3 -c \u5bf9\u7aefIP -t 30 -P 4\nping -c 100 \u5bf9\u7aefIP\nmtr -rwc 100 \u5bf9\u7aefIP<\/code><\/pre>\n<p>\u6807\u79f0 100Mbps \u7684\u673a\u5668\uff0c\u51cc\u6668\u80fd\u8dd1\u5230 95Mbps\u3001\u665a\u9ad8\u5cf0\u53ea\u6709 40Mbps\uff0c\u5c31\u662f\u5178\u578b\u7684\u5171\u4eab\u5e26\u5bbd\u4e89\u62a2\u3002\u518d\u770b\u4e22\u5305\u548c\u6296\u52a8\uff1a\u5e73\u5747\u5ef6\u8fdf\u4f4e\u4f46 p95 \u5f88\u9ad8\uff0c\u8bf4\u660e\u6392\u961f\u4e25\u91cd\u3002\u6d4b\u901f\u8981\u9009\u540c\u533a\u57df\u7684\u5bf9\u7aef\uff0c\u8de8\u6d32\u6d4b\u8bd5\u8bf4\u660e\u4e0d\u4e86\u5bbf\u4e3b\u673a\u7684\u95ee\u9898\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img width=\"1280\" height=\"720\" src=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/47cc7c1760f132a.jpg\" alt=\"\u591a\u4e2a\u5bb9\u5668\u7ade\u4e89\u540c\u4e00\u6839\u5171\u4eab\u7f51\u7edc\u7ba1\u9053\" class=\"wp-image-3248\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/47cc7c1760f132a.jpg 1280w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/47cc7c1760f132a-300x169.jpg 300w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/47cc7c1760f132a-1024x576.jpg 1024w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/47cc7c1760f132a-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption>\u6807\u79f0\u5e26\u5bbd\u662f\u5171\u4eab\u4e0a\u9650\uff0c\u665a\u9ad8\u5cf0\u80fd\u8dd1\u5230\u591a\u5c11\u624d\u662f\u771f\u5b9e\u4f53\u9a8c\u3002<\/figcaption><\/figure>\n<h2 id=\"\u65b9\u6cd5\u4e94\u770b\u6027\u80fd\u4e00\u81f4\u6027\">\u65b9\u6cd5\u4e94\uff1a\u770b\u6027\u80fd\u4e00\u81f4\u6027<\/h2>\n<p>\u540c\u4e00\u4e2a benchmark \u5728\u4e0d\u540c\u65f6\u6bb5\u8dd1\u4e09\u6b21\uff0c\u5982\u679c\u7ed3\u679c\u5dee\u8ddd\u8d85\u8fc7 30%\uff0c\u8bf4\u660e\u8fd9\u53f0\u673a\u5668\u7684\u6027\u80fd\u4e0d\u7a33\u5b9a\u3002\u7a33\u5b9a\u7684\u673a\u5668\u4e0d\u662f\u201c\u8dd1\u5206\u6700\u9ad8\u201d\uff0c\u800c\u662f\u201c\u6bcf\u6b21\u8dd1\u5206\u90fd\u5dee\u4e0d\u591a\u201d\u3002\u5bf9\u751f\u4ea7\u6765\u8bf4\uff0c\u53ef\u9884\u6d4b\u6027\u6bd4\u5cf0\u503c\u66f4\u91cd\u8981\u3002<\/p>\n<h2 id=\"\u54ea\u4e9b\u8d85\u552e\u53ef\u4ee5\u63a5\u53d7\">\u54ea\u4e9b\u8d85\u552e\u53ef\u4ee5\u63a5\u53d7<\/h2>\n<ul>\n<li>CPU \u7a7a\u95f2\u65f6\u80fd\u7ed9\u5230\u5168\u989d\u6027\u80fd\uff0c\u9ad8\u5cf0\u65f6 steal \u4e0d\u8d85\u8fc7 5%<\/li>\n<li>\u5185\u5b58\u4e0d\u88ab\u8feb swap\uff0c\u6ca1\u6709 OOM<\/li>\n<li>\u78c1\u76d8 IOPS \u6709\u660e\u786e\u4e0a\u9650\uff0c\u5ef6\u8fdf\u7a33\u5b9a\uff0c\u4e0d\u957f\u65f6\u95f4\u6392\u961f<\/li>\n<li>\u5e26\u5bbd\u662f\u5171\u4eab\u7684\uff0c\u4f46\u6807\u79f0\u503c\u548c\u5b9e\u9645\u503c\u5dee\u8ddd\u5728\u53ef\u89e3\u91ca\u8303\u56f4\u5185<\/li>\n<\/ul>\n<p>\u53cd\u8fc7\u6765\uff0c\u6301\u7eed steal\u3001\u9891\u7e41 swap\u3001IO \u5ef6\u8fdf\u6296\u52a8\u3001\u665a\u9ad8\u5cf0\u5e26\u5bbd\u8170\u65a9\uff0c\u8fd9\u56db\u79cd\u51fa\u73b0\u4efb\u4f55\u4e00\u79cd\uff0c\u90fd\u4e0d\u9002\u5408\u653e\u6570\u636e\u5e93\u3001API \u7f51\u5173\u3001\u5b9e\u65f6\u4e1a\u52a1\u3002<\/p>\n<h2 id=\"\u4e70\u524d\u600e\u4e48\u95ee\u600e\u4e48\u9009\">\u4e70\u524d\u600e\u4e48\u95ee\u3001\u600e\u4e48\u9009<\/h2>\n<ol>\n<li>\u95ee CPU \u578b\u53f7\u548c\u4ee3\u9645\uff0c\u4e0d\u8981\u53ea\u95ee\u6838\u6570\u3002\u540c\u6837\u662f 4 \u6838\uff0c\u51e0\u4ee3\u4e4b\u524d\u7684 Xeon \u548c\u65b0\u7684 EPYC \u5dee\u5f88\u591a\u3002<\/li>\n<li>\u95ee vCPU \u662f\u72ec\u4eab\u8fd8\u662f\u5171\u4eab\uff0c\u6709\u6ca1\u6709 CPU \u5360\u7528\u4e0a\u9650\u6216\u79ef\u5206\u5236\u3002<\/li>\n<li>\u95ee\u5185\u5b58\u662f\u5426\u53ef\u7a81\u53d1\u3001\u662f\u5426\u4fdd\u8bc1\uff0c\u78c1\u76d8\u662f\u672c\u5730 SSD \u8fd8\u662f\u7f51\u7edc\u5b58\u50a8\uff0cIOPS \u4e0a\u9650\u591a\u5c11\u3002<\/li>\n<li>\u95ee\u5e26\u5bbd\u662f\u72ec\u4eab\u8fd8\u662f\u5171\u4eab\uff0c\u8d85\u6d41\u91cf\u600e\u4e48\u8ba1\u8d39\uff0c\u665a\u9ad8\u5cf0\u6709\u6ca1\u6709\u4fdd\u8bc1\u3002<\/li>\n<li>\u7528\u9000\u6b3e\u7a97\u53e3\u505a\u9a8c\u6536\uff1a\u90e8\u7f72\u771f\u5b9e\u4e1a\u52a1\uff0c\u8dd1 3 \u5929\uff0c\u6309\u4e0a\u9762\u7684\u56db\u9879\u6307\u6807\u8bb0\u5f55\u3002<\/li>\n<\/ol>\n<p>\u5982\u679c\u9884\u7b97\u654f\u611f\uff0c\u53ef\u4ee5\u5148\u6309\u5c0f\u65f6\u5f00\u4e00\u53f0\u6d4b\u8bd5\uff0c\u786e\u8ba4\u6027\u80fd\u7a33\u5b9a\u518d\u8f6c\u957f\u671f\u3002<a href=\"https:\/\/www.ygcloud.com\/vps\/hong-kong-cn2-vps\">\u8424\u5149\u4e91\u9999\u6e2f CN2 VPS<\/a> \u652f\u6301\u6309\u5c0f\u65f6\u8ba1\u8d39\uff0c\u9002\u5408\u5148\u505a 3 \u5929\u7a33\u5b9a\u6027\u9a8c\u6536\u3002<\/p>\n<h2 id=\"\u5e38\u89c1\u95ee\u9898-faq\">\u5e38\u89c1\u95ee\u9898 FAQ<\/h2>\n<p><strong>Q1\uff1a\u8d85\u552e\u4e00\u5b9a\u662f\u574f\u4e8b\u5417\uff1f<\/strong><\/p>\n<p>\u4e0d\u662f\u3002\u9002\u5ea6\u8d85\u552e\u80fd\u8ba9\u4ef7\u683c\u964d\u4e0b\u6765\uff0c\u53ea\u8981\u4e0d\u5f71\u54cd\u4f60\u7684\u5b9e\u9645\u6027\u80fd\u3002\u5173\u952e\u662f\u53ef\u9884\u6d4b\uff0c\u800c\u4e0d\u662f\u7edd\u5bf9\u4e0d\u8d85\u3002<\/p>\n<p><strong>Q2\uff1asteal \u591a\u5c11\u7b97\u6b63\u5e38\uff1f<\/strong><\/p>\n<p>\u5076\u53d1 1% \u5230 2% \u6b63\u5e38\uff0c\u6301\u7eed 5% \u4ee5\u4e0a\u8981\u8b66\u60d5\uff0c10% \u4ee5\u4e0a\u4e0d\u9002\u5408\u5ef6\u8fdf\u654f\u611f\u4e1a\u52a1\u3002\u770b\u6301\u7eed\u65f6\u95f4\u548c\u9ad8\u5cf0\u65f6\u6bb5\u3002<\/p>\n<p><strong>Q3\uff1a\u8dd1\u5206\u9ad8\u5c31\u4ee3\u8868\u4e0d\u8d85\u552e\u5417\uff1f<\/strong><\/p>\n<p>\u4e0d\u4ee3\u8868\u3002\u8dd1\u5206\u53ea\u53cd\u6620\u90a3\u4e00\u523b\u7684\u8d44\u6e90\u60c5\u51b5\u3002\u8981\u770b\u4e0d\u540c\u65f6\u6bb5\u7684\u4e09\u6b21\u7ed3\u679c\u662f\u5426\u7a33\u5b9a\uff0c\u4ee5\u53ca steal\u3001IO \u7b49\u5f85\u8fd9\u4e9b\u8fc7\u7a0b\u6307\u6807\u3002<\/p>\n<p><strong>Q4\uff1a\u4fbf\u5b9c VPS \u4e00\u5b9a\u8d85\u552e\u5417\uff1f<\/strong><\/p>\n<p>\u5927\u6982\u7387\u6709\u8d85\u552e\uff0c\u4f46\u4fbf\u5b9c\u4e0d\u7b49\u4e8e\u4e0d\u80fd\u7528\u3002\u8f7b\u91cf\u7ad9\u70b9\u3001\u6d4b\u8bd5\u73af\u5883\u3001\u79bb\u7ebf\u4efb\u52a1\u5bf9\u6296\u52a8\u4e0d\u654f\u611f\uff0c\u6027\u4ef7\u6bd4\u53ef\u80fd\u5f88\u9ad8\uff1b\u6570\u636e\u5e93\u548c\u5b9e\u65f6\u4e1a\u52a1\u8981\u66f4\u8c28\u614e\u3002<\/p>\n<p><strong>Q5\uff1a\u600e\u4e48\u5feb\u901f\u5224\u65ad\u4e00\u53f0\u673a\u5668\u80fd\u4e0d\u80fd\u653e\u751f\u4ea7\uff1f<\/strong><\/p>\n<p>\u90e8\u7f72\u771f\u5b9e\u4e1a\u52a1\uff0c\u89c2\u5bdf 72 \u5c0f\u65f6\uff1asteal\u3001swap\u3001IO await\u3001\u665a\u9ad8\u5cf0\u5e26\u5bbd\u3002\u56db\u9879\u90fd\u7a33\u5b9a\uff0c\u518d\u8003\u8651\u957f\u671f\u3002<\/p>\n<h2 id=\"\u53c2\u8003\u6765\u6e90\">\u53c2\u8003\u6765\u6e90<\/h2>\n<ul>\n<li><a href=\"https:\/\/man7.org\/linux\/man-pages\/man1\/top.1.html\">Linux man-pages\uff1atop\uff08\u542b steal \u8bf4\u660e\uff09<\/a><\/li>\n<li><a href=\"https:\/\/man7.org\/linux\/man-pages\/man1\/iostat.1.html\">Linux man-pages\uff1aiostat<\/a><\/li>\n<li><a href=\"https:\/\/fio.readthedocs.io\/en\/latest\/\">fio \u6587\u6863<\/a><\/li>\n<\/ul>\n<h2 id=\"\u603b\u7ed3\">\u603b\u7ed3<\/h2>\n<p>\u5224\u65ad VPS \u8d85\u552e\uff0c\u522b\u53ea\u770b\u6838\u6570\u548c\u4ef7\u683c\u3002\u770b steal\u3001swap\u3001IO await\u3001\u4e0d\u540c\u65f6\u6bb5\u5e26\u5bbd\uff0c\u518d\u8dd1\u4e09\u6b21\u4e00\u81f4\u6027\u6d4b\u8bd5\u3002\u9002\u5ea6\u7684\u8d85\u552e\u53ef\u4ee5\u63a5\u53d7\uff0c\u6301\u7eed\u7684\u8d44\u6e90\u4e89\u62a2\u4e0d\u80fd\u3002\u4e70\u4e4b\u524d\u95ee\u6e05\u695a\uff0c\u4e70\u4e4b\u540e\u7528\u771f\u5b9e\u4e1a\u52a1\u9a8c\u6536 72 \u5c0f\u65f6\uff0c\u6bd4\u4efb\u4f55\u8bc4\u6d4b\u90fd\u53ef\u9760\u3002<\/p>\n<p>\u9700\u8981\u4e00\u53f0\u673a\u5668\u505a 3 \u5929\u7a33\u5b9a\u6027\u9a8c\u6536\uff0c\u53ef\u4ee5\u6309\u5c0f\u65f6\u5f00\u4e00\u53f0<a href=\"https:\/\/www.ygcloud.com\/vps\/hong-kong-cn2-vps\">\u8424\u5149\u4e91\u9999\u6e2f CN2 VPS<\/a>\uff0c\u6d4b\u5b8c\u518d\u51b3\u5b9a\u662f\u5426\u8f6c\u957f\u671f\u3002<\/p>\n<h2 id=\"\u76f8\u5173\u63a8\u8350\">\u76f8\u5173\u63a8\u8350<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/1951\/\">Docker \u90e8\u7f72\u5e94\u7528\u9700\u8981\u591a\u5927 VPS \u914d\u7f6e\uff1f<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/1342\/\">\u670d\u52a1\u5668\u8d8a\u6765\u8d8a\u5361\u600e\u4e48\u529e\uff1f\u4ec0\u4e48\u65f6\u5019\u8be5\u5347\u914d<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/1761\/\">\u6d4b\u901f\u62a5\u544a\u600e\u4e48\u8bfb\uff1a\u4ece\u5ef6\u8fdf\u3001\u4e22\u5305\u5230\u8def\u7531\u7684\u57fa\u7840\u5224\u65ad<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/854\/\">\u6309\u5c0f\u65f6\u8fd8\u662f\u6309\u6708\u4e70 VPS\uff1f\u8ba1\u8d39\u65b9\u5f0f\u4e0e\u603b\u6210\u672c\u8ba1\u7b97<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/348\/\">VPS \u662f\u4ec0\u4e48\uff1f\u7528\u9014\u3001\u4f18\u7f3a\u70b9\u53ca\u4e0e\u4e91\u670d\u52a1\u5668\u7684\u533a\u522b<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u5148\u8bf4\u7ed3\u8bba\uff1aVPS \u8d85\u552e\u662f\u884c\u4e1a\u5e38\u6001\uff0c\u51e0\u4e4e\u6240\u6709\u5171\u4eab\u578b\u4ea7\u54c1\u90fd\u5728\u8d85\u552e\uff0c\u5173\u952e\u4e0d\u662f\u201c\u6709\u6ca1\u6709\u8d85\u201d\uff0c\u800c\u662f\u201c\u8d85\u4e86\u4e4b\u540e\u6709\u6ca1\u6709\u5f71\u54cd\u5230\u4f60\u201d\u3002\u5224\u65ad\u65b9\u6cd5\u4e5f\u4e0d\u795e\u79d8\uff1a\u770b CPU steal\u3001\u5185\u5b58 swap\u3001\u78c1\u76d8 await \u548c\u4e0d\u540c\u65f6\u6bb5\u7684\u7f51\u7edc\uff0c\u56db\u9879\u91cc\u6709\u4e24\u9879\u6301\u7eed\u5f02\u5e38\uff0c\u8fd9\u53f0\u673a\u5668&#8230;<\/p>\n","protected":false},"author":1,"featured_media":3245,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[43,105],"topic":[],"class_list":["post-3249","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vps","tag-vps","tag-server-sizing"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>VPS \u8d85\u552e\u662f\u4ec0\u4e48\uff1a\u600e\u4e48\u5224\u65ad\u4fbf\u5b9c VPS \u6709\u6ca1\u6709\u8d85\u552e<\/title>\n<meta name=\"description\" content=\"VPS \u8d85\u552e\u662f\u884c\u4e1a\u5e38\u6001\uff0c\u5173\u952e\u770b\u6709\u6ca1\u6709\u5f71\u54cd\u6027\u80fd\u3002\u7528 CPU steal\u3001\u5185\u5b58 swap\u3001\u78c1\u76d8 await \u548c\u4e0d\u540c\u65f6\u6bb5\u5e26\u5bbd\u56db\u9879\u6307\u6807\uff0c\u5224\u65ad\u4e00\u53f0\u4fbf\u5b9c VPS \u80fd\u4e0d\u80fd\u653e\u751f\u4ea7\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ygcloud.com\/knowledge\/3249\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"VPS \u8d85\u552e\u662f\u4ec0\u4e48\uff1a\u600e\u4e48\u5224\u65ad\u4fbf\u5b9c VPS \u6709\u6ca1\u6709\u8d85\u552e\" \/>\n<meta property=\"og:description\" content=\"VPS \u8d85\u552e\u662f\u884c\u4e1a\u5e38\u6001\uff0c\u5173\u952e\u770b\u6709\u6ca1\u6709\u5f71\u54cd\u6027\u80fd\u3002\u7528 CPU steal\u3001\u5185\u5b58 swap\u3001\u78c1\u76d8 await \u548c\u4e0d\u540c\u65f6\u6bb5\u5e26\u5bbd\u56db\u9879\u6307\u6807\uff0c\u5224\u65ad\u4e00\u53f0\u4fbf\u5b9c VPS \u80fd\u4e0d\u80fd\u653e\u751f\u4ea7\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ygcloud.com\/knowledge\/3249\/\" \/>\n<meta property=\"og:site_name\" content=\"VPS\u77e5\u8bc6\u5206\u4eab\u7ad9\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-24T02:30:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-26T08:26:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/88174685ead2cee.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1600\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"\u6d77\u5916VPS\u63a8\u8350\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6d77\u5916VPS\u63a8\u8350\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.ygcloud.com\\\/knowledge\\\/3249\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.ygcloud.com\\\/knowledge\\\/3249\\\/\"},\"author\":{\"name\":\"\u6d77\u5916VPS\u63a8\u8350\",\"@id\":\"https:\\\/\\\/www.ygcloud.com\\\/knowledge\\\/#\\\/schema\\\/person\\\/601f21f360aeefaddbdfd0f14953d704\"},\"headline\":\"VPS \u8d85\u552e\u662f\u4ec0\u4e48\uff1f\u600e\u4e48\u5224\u65ad\u4e00\u53f0\u4fbf\u5b9c VPS 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