{"id":33595,"date":"2026-10-14T10:00:00","date_gmt":"2026-10-14T02:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=33595"},"modified":"2026-10-15T09:28:01","modified_gmt":"2026-10-15T01:28:01","slug":"vps-overselling-cpu-truth","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/guides\/vps-overselling-cpu-truth\/","title":{"rendered":"VPS \u9009\u8d2d \u8d85\u552e \u5171\u4eab\u6838 \u72ec\u4eab\u8d44\u6e90\uff1a\u907f\u5751\u6307\u5357\u4e0e\u771f\u5b9e\u5dee\u5f02"},"content":{"rendered":"<p><!--more--><\/p>\n<p>\u5f88\u591a\u7ad9\u957f\u7b2c\u4e00\u6b21\u4e70 <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\u90fd\u4f1a\u9047\u5230\u540c\u4e00\u4e2a\u56f0\u60d1\uff1a\u4e24\u53f0\u914d\u7f6e\u90fd\u5199\u7740&#8221;2 \u6838 4G&#8221;\uff0c\u4ef7\u683c\u5dee\u4e86\u4e24\u4e09\u500d\uff0c\u6027\u80fd\u5dee\u8ddd\u751a\u81f3\u8fbe\u5230 5 \u500d\u4ee5\u4e0a\u3002\u95ee\u9898\u5f80\u5f80\u4e0d\u5728\u914d\u7f6e\u8868\uff0c\u800c\u5728\u4f60\u770b\u4e0d\u5230\u7684\u5730\u65b9\u2014\u2014\u8d85\u552e\u6bd4\u4f8b\u548c\u8d44\u6e90\u5206\u914d\u65b9\u5f0f\u3002\u8fd9\u7bc7\u6587\u7ae0\u4f1a\u5e2e\u52a9\u4f60\u641e\u6e05\u695a\u8d85\u552e\u3001\u5171\u4eab\u6838\u4e0e\u72ec\u4eab\u8d44\u6e90\u7684\u771f\u5b9e\u5dee\u5f02\uff0c\u6559\u4f60\u7528\u51e0\u6761\u547d\u4ee4\u9a8c\u8bc1\u4e00\u53f0 VPS \u7684\u771f\u5b9e\u7b97\u529b\uff0c\u907f\u514d\u82b1\u4e86\u72ec\u4eab\u7684\u94b1\u3001\u4e70\u5230\u5171\u4eab\u7684\u4f53\u9a8c\u3002<\/p>\n<p>\u8981\u770b\u61c2\u8fd9\u7c7b\u95ee\u9898\uff0c\u5148\u5f97\u7406\u89e3 VPS \u7684\u5e95\u5c42\u903b\u8f91\uff1a\u4e00\u53f0<a href=\"https:\/\/cn.hostease.com\/dedicated-server\/\">\u7269\u7406\u670d\u52a1\u5668<\/a>\u901a\u8fc7\u865a\u62df\u5316\u88ab\u5207\u6210\u591a\u53f0\u865a\u62df\u673a\uff0cCPU\u3001\u5185\u5b58\u3001\u78c1\u76d8\u5176\u5b9e\u90fd\u6765\u81ea\u540c\u4e00\u53f0\u7269\u7406\u673a\u3002\u5382\u5546\u600e\u4e48\u5207\u3001\u5207\u591a\u8584\uff0c\u76f4\u63a5\u51b3\u5b9a\u4f60\u5b9e\u9645\u80fd\u7528\u5230\u591a\u5c11\u7b97\u529b\u3002\u4e0b\u9762\u6309&#8221;\u8d85\u552e\u662f\u4ec0\u4e48\u3001\u5171\u4eab\u6838\u600e\u4e48\u8fd0\u4f5c\u3001\u72ec\u4eab\u8d44\u6e90\u8d35\u5728\u54ea\u3001\u5982\u4f55\u5b9e\u6d4b\u9a8c\u8bc1&#8221;\u8fd9\u6761\u4e3b\u7ebf\u9010\u5c42\u62c6\u5f00\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/vps-overselling-cpu-truth-cover.webp\" alt=\"VPS \u670d\u52a1\u5668\u673a\u7bb1\u4e2d\u4e00\u679a\u5904\u7406\u5668\u6a21\u5757\u5411\u591a\u4e2a\u865a\u62df\u673a\u5206\u914d\u8d44\u6e90\u7684\u5c01\u9762\u63d2\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u8d85\u552e\u662f\u600e\u4e48\u53d1\u751f\u7684<\/h2>\n<p>\u8d85\u552e\uff08overselling\uff09\u6307\u5382\u5546\u628a\u540c\u4e00\u4efd\u7269\u7406\u8d44\u6e90\u627f\u8bfa\u7ed9\u8d85\u8fc7\u5b83\u5b9e\u9645\u5bb9\u91cf\u7684\u7528\u6237\u3002\u4e3e\u4f8b\u6765\u8bf4\uff0c\u4e00\u53f0\u7269\u7406\u673a\u6709 32 \u6838 CPU \u548c 64GB \u5185\u5b58\uff0c\u5982\u679c\u4e25\u683c\u6309 1:1 \u5206\u914d\uff0c\u6700\u591a\u5356 32 \u4e2a&#8221;2 \u6838 2G&#8221;\u7684\u5957\u9910\uff1b\u4f46\u5982\u679c\u6309 1:4 \u8d85\u552e\uff0c\u5c31\u80fd\u5356\u51fa 128 \u4efd\u3002\u53ea\u8981\u8fd9 128 \u4e2a\u7528\u6237\u4e0d\u540c\u65f6\u9ad8\u5cf0\u8fd0\u884c\uff0c\u5927\u90e8\u5206\u65f6\u95f4\u5927\u5bb6\u76f8\u5b89\u65e0\u4e8b\u2014\u2014\u8fd9\u5c31\u662f\u4f4e\u4ef7 VPS \u80fd\u628a\u4ef7\u683c\u538b\u5230\u6bcf\u5e74\u51e0\u5341\u5143\u7684\u6839\u672c\u539f\u56e0\u3002<\/p>\n<p>\u8d85\u552e\u672c\u8eab\u4e0d\u662f\u9a97\u5c40\uff0c\u800c\u662f\u4e00\u79cd\u7edf\u8ba1\u5b66\u7ecf\u8425\u7b56\u7565\uff0c\u98de\u673a\u7968\u3001\u9152\u5e97\u623f\u95f4\u90fd\u5728\u7528\u540c\u6837\u7684\u903b\u8f91\u3002\u95ee\u9898\u5728\u4e8e\u8d85\u552e\u6bd4\u4f8b\u5b8c\u5168\u4e0d\u900f\u660e\uff1a\u540c\u6837\u662f&#8221;2 \u6838&#8221;\uff0c\u6709\u7684\u5382\u5546\u8d85\u552e 2 \u500d\uff0c\u6709\u7684\u6562\u8d85\u552e 8 \u500d\u3002\u540e\u8005\u5728\u65e5\u5e38\u7a7a\u95f2\u65f6\u8dd1\u5206\u770b\u4e0d\u51fa\u5dee\u522b\uff0c\u4e00\u65e6\u4f60\u8dd1\u6570\u636e\u5e93\u5907\u4efd\u3001\u7f16\u8bd1\u4efb\u52a1\u6216\u906d\u9047\u6d41\u91cf\u9ad8\u5cf0\uff0c\u6027\u80fd\u5c31\u4f1a\u65ad\u5d16\u5f0f\u4e0b\u8dcc\u3002\u5224\u65ad\u4e00\u53f0 VPS \u662f\u5426\u4e25\u91cd\u8d85\u552e\uff0c\u6700\u76f4\u63a5\u7684\u6307\u6807\u662f CPU steal time\uff08CPU \u88ab\u5bbf\u4e3b\u673a\u5360\u7528\u7684\u65f6\u95f4\u6bd4\u4f8b\uff09\uff1a\u5728\u7ec8\u7aef\u6267\u884c <code>top<\/code> \u547d\u4ee4\uff0c\u770b <code>st<\/code> \u90a3\u4e00\u5217\uff0c\u957f\u671f\u8d85\u8fc7 5% \u5c31\u8bf4\u660e\u90bb\u5c45\u8d1f\u8f7d\u7ecf\u5e38\u6324\u538b\u5230\u4f60\uff0c\u8d85\u8fc7 10% \u57fa\u672c\u53ef\u4ee5\u5224\u5b9a\u8d85\u552e\u6bd4\u4f8b\u8fc7\u9ad8\u3002<\/p>\n<h2>\u5171\u4eab\u6838\u4e0e\u72ec\u4eab\u6838\u7684\u771f\u5b9e\u5dee\u522b<\/h2>\n<p>\u5f04\u6e05\u8d85\u552e\u540e\uff0c\u518d\u770b\u8425\u9500\u672f\u8bed\u91cc\u7684&#8221;\u5171\u4eab\u6838&#8221;\u548c&#8221;\u72ec\u4eab\u6838&#8221;\u3002\u5171\u4eab\u6838\uff08\u5373\u591a\u4eba\u5206\u644a\u540c\u4e00\u7269\u7406\u6838\u5fc3\uff09\u610f\u5473\u7740\u4f60\u7684 vCPU \u53ea\u662f\u7269\u7406 CPU \u4e0a\u7684\u4e00\u4e2a\u65f6\u95f4\u7247\u914d\u989d\uff0c\u865a\u62df\u673a\u76d1\u63a7\u5668\uff08Hypervisor\uff09\u6309\u8c03\u5ea6\u7b56\u7565\u628a\u771f\u5b9e\u7b97\u529b\u8f6e\u6d41\u5206\u7ed9\u591a\u53f0\u865a\u62df\u673a\uff1b\u72ec\u4eab\u6838\uff08\u5373\u72ec\u5360\u7269\u7406\u6838\u5fc3\uff09\u5219\u662f\u628a\u7269\u7406\u6838\u5fc3\u6216\u8d85\u7ebf\u7a0b\u6574\u4e2a\u7ed1\u5b9a\u7ed9\u4f60\uff0c\u4e0d\u53d7\u90bb\u5c45\u8d1f\u8f7d\u5f71\u54cd\u3002\u4e24\u8005\u7684\u4ef7\u683c\u5dee\u901a\u5e38\u5728 2-4 \u500d\uff0c\u4f46\u5b9e\u9645\u53ef\u7528\u7b97\u529b\u7684\u5dee\u8ddd\u5728\u9ad8\u5cf0\u671f\u53ef\u80fd\u8d85\u8fc7 5 \u500d\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/vps-overselling-cpu-truth-comparison.webp\" alt=\"\u8d85\u552e\u5171\u4eab\u5904\u7406\u5668\u4e0e\u72ec\u4eab\u5904\u7406\u5668\u7684\u5de6\u53f3\u5bf9\u6bd4\u63d2\u56fe\" loading=\"lazy\" \/><\/p>\n<p>\u5171\u4eab\u6838\u5e76\u975e\u4e0d\u80fd\u7528\uff0c\u5173\u952e\u770b\u4e1a\u52a1\u5f62\u6001\u3002\u4e0b\u9762\u8fd9\u51e0\u7c7b\u573a\u666f\u7684\u5dee\u5f02\u6700\u660e\u663e\uff1a<\/p>\n<ul>\n<li>\u8f7b\u91cf\u535a\u5ba2\u3001\u9759\u6001\u7ad9\u3001\u65e5\u5747 PV \u4f4e\u4e8e 5000 \u7684\u5c55\u793a\u7ad9\uff1aCPU \u957f\u671f\u5229\u7528\u7387\u4f4e\u4e8e 10%\uff0c\u5171\u4eab\u6838\u5b8c\u5168\u591f\u7528\uff0c\u6ca1\u5fc5\u8981\u4e3a\u72ec\u4eab\u4ed8\u8d39\u3002<\/li>\n<li>WordPress\u3001\u7535\u5546\u7b49 PHP \u52a8\u6001\u7ad9\uff1a\u5e76\u53d1\u8bf7\u6c42\u4f1a\u77ac\u95f4\u62c9\u9ad8 CPU\uff0c\u5171\u4eab\u6838\u5728\u9ad8\u5cf0\u671f\u5bb9\u6613\u51fa\u73b0 TTFB\uff08\u9996\u5b57\u8282\u65f6\u95f4\uff09\u4ece 200ms \u6da8\u5230 2s \u7684\u60c5\u51b5\uff0c\u5efa\u8bae\u81f3\u5c11\u9009\u5e26\u7a81\u53d1\u4fdd\u969c\u7684\u65b9\u6848\u3002<\/li>\n<li>\u6570\u636e\u5e93\u3001Redis\u3001\u7f16\u8bd1\u6784\u5efa\u7c7b\u8d1f\u8f7d\uff1a\u5bf9 CPU \u5ef6\u8fdf\u654f\u611f\uff0cCPU steal \u6bcf\u9ad8 1% \u90fd\u76f4\u63a5\u62d6\u6162\u54cd\u5e94\uff0c\u8fd9\u7c7b\u4e1a\u52a1\u5e94\u76f4\u63a5\u4e0a\u72ec\u4eab\u6838\u3002<\/li>\n<\/ul>\n<h2>\u4e09\u7ec4\u5b9e\u6d4b\u6570\u636e\uff1a\u540c\u6837 2 \u6838 4G\uff0c\u5dee\u8ddd\u6709\u591a\u5927<\/h2>\n<p>\u5149\u8bb2\u6982\u5ff5\u4e0d\u591f\u76f4\u89c2\uff0c\u6211\u4eec\u770b\u4e00\u7ec4\u5178\u578b\u7684\u5bf9\u6bd4\u6d4b\u8bd5\uff08\u540c\u4e00\u6d4b\u8bd5\u811a\u672c\uff0c<code>sysbench cpu --threads=2 --time=30<\/code> \u8dd1 30 \u79d2\u53d6\u4e8b\u4ef6\u6570\uff0c\u6570\u503c\u8d8a\u9ad8\u7b97\u529b\u8d8a\u5f3a\uff09\uff1a<\/p>\n<table>\n<tr>\n<th>\u673a\u578b\u7c7b\u578b<\/th>\n<th>CPU steal \u5747\u503c<\/th>\n<th>sysbench \u4e8b\u4ef6\u6570<\/th>\n<th>\u9ad8\u5cf0\u671f TTFB<\/th>\n<\/tr>\n<tr>\n<td>\u91cd\u5ea6\u8d85\u552e\u5171\u4eab\u6838<\/td>\n<td>8%-15%<\/td>\n<td>\u7ea6 9000<\/td>\n<td>1800ms \u4ee5\u4e0a<\/td>\n<\/tr>\n<tr>\n<td>\u8f7b\u5ea6\u8d85\u552e\u5171\u4eab\u6838<\/td>\n<td>1%-4%<\/td>\n<td>\u7ea6 21000<\/td>\n<td>400-600ms<\/td>\n<\/tr>\n<tr>\n<td>\u72ec\u4eab\u6838<\/td>\n<td>\u63a5\u8fd1 0%<\/td>\n<td>\u7ea6 28000<\/td>\n<td>250ms \u4ee5\u5185<\/td>\n<\/tr>\n<\/table>\n<p>\u540c\u6837\u6807\u79f0 2 \u6838\uff0c\u91cd\u5ea6\u8d85\u552e\u673a\u578b\u7684\u5b9e\u6d4b\u7b97\u529b\u53ea\u6709\u72ec\u4eab\u6838\u7684\u4e09\u5206\u4e4b\u4e00\u5de6\u53f3\u3002\u66f4\u9690\u853d\u7684\u662f&#8221;\u7a81\u53d1\u6027\u80fd&#8221;\u9677\u9631\uff1a\u90e8\u5206\u4f4e\u4ef7\u673a\u578b\u91c7\u7528\u79ef\u5206\u5236 CPU\uff08\u7c7b\u4f3c\u5927\u578b\u4e91\u670d\u52a1\u5668\uff08\u5373\u6309\u9700\u5206\u914d\u7684\u96c6\u7fa4\u5316\u6258\u7ba1\u8d44\u6e90\uff09\u5e73\u53f0\u7684\u79ef\u5206\u7a81\u53d1\u6a21\u5f0f\uff09\uff0c\u65b0\u673a\u524d\u51e0\u5c0f\u65f6\u8dd1\u5206\u5f88\u6f02\u4eae\uff0c\u79ef\u5206\u8017\u5c3d\u540e\u88ab\u9650\u5236\u5230 20%-30% \u7684\u57fa\u7840\u9891\u7387\u3002\u9a8c\u8bc1\u65b9\u6cd5\u662f\u8dd1\u4e00\u4e2a\u6301\u7eed\u538b\u529b\u6d4b\u8bd5\uff1a\u6267\u884c <code>yes &gt; \/dev\/null &amp;<\/code> \u8fde\u7eed\u538b 30 \u5206\u949f\u540e\u518d\u770b <code>top<\/code> \u91cc\u7684 steal \u503c\u548c\u5b9e\u9645\u4e3b\u9891\uff08<code>grep MHz \/proc\/cpuinfo<\/code>\uff09\uff0c\u5982\u679c\u9891\u7387\u660e\u663e\u4e0b\u964d\u6216 steal \u98d9\u5347\uff0c\u8bf4\u660e\u8fd9\u7c7b\u9650\u5236\u786e\u5b9e\u5b58\u5728\u3002<\/p>\n<p>\u78c1\u76d8 I\/O \u662f\u53e6\u4e00\u4e2a\u5bb9\u6613\u88ab\u8d85\u552e\u7684\u7ef4\u5ea6\u3002\u7528 <code>fio --name=test --rw=randread --bs=4k --size=1G --time_based --runtime=30<\/code> \u5b9e\u6d4b\u968f\u673a\u8bfb\u5199\uff0c\u5065\u5eb7\u503c\u5e94\u5728 100MB\/s \u548c 5000 IOPS \u4ee5\u4e0a\uff1b\u5927\u91cf\u5ec9\u4ef7 VPS \u5b9e\u6d4b\u53ea\u6709 20-40MB\/s\uff0c\u56e0\u4e3a\u4e00\u5757\u7269\u7406\u76d8\u540e\u9762\u6302\u7740\u51e0\u5341\u4e2a\u79df\u6237\u3002\u5185\u5b58\u8d85\u552e\u76f8\u5bf9\u5c11\u89c1\uff0c\u4f46 <code>free -m<\/code> \u91cc buff\/cache \u5f02\u5e38\u9ad8\u3001<code>dmesg<\/code> \u9891\u7e41\u51fa\u73b0 OOM \u8bb0\u5f55\u7684\u673a\u5668\uff0c\u901a\u5e38\u8bf4\u660e\u5bbf\u4e3b\u673a\u5185\u5b58\u5df2\u7ecf\u5403\u7d27\u3002<\/p>\n<h2>\u8d85\u552e\u9677\u9631\u7684\u4e09\u4e2a\u5178\u578b\u4fe1\u53f7<\/h2>\n<p>\u5b9e\u9645\u8fd0\u8425\u4e2d\uff0c\u8d85\u552e\u95ee\u9898\u5f88\u5c11\u4e00\u4e0a\u7ebf\u5c31\u7206\u53d1\uff0c\u800c\u662f\u4ee5\u5bb9\u6613\u8bef\u5224\u7684\u4fe1\u53f7\u9010\u6b65\u663e\u73b0\u3002\u7b2c\u4e00\u4e2a\u4fe1\u53f7\u662f&#8221;\u5b9a\u65f6\u53d8\u6162&#8221;\uff1a\u7f51\u7ad9\u6bcf\u5929\u56fa\u5b9a\u65f6\u6bb5\uff08\u901a\u5e38\u662f\u665a\u9ad8\u5cf0\uff09\u54cd\u5e94\u53d8\u6162\uff0c\u91cd\u542f\u65e0\u6539\u5584\uff0c\u8fc7\u4e86\u65f6\u6bb5\u53c8\u81ea\u52a8\u6062\u590d\u3002\u8fd9\u662f\u5178\u578b\u7684\u90bb\u5c45\u8d1f\u8f7d\u6324\u538b\u2014\u2014\u5927\u91cf\u7528\u6237\u7684\u5b9a\u65f6\u4efb\u52a1\u548c\u8bbf\u95ee\u96c6\u4e2d\u5728\u540c\u4e00\u65f6\u6bb5\uff0c\u5bbf\u4e3b\u673a\u8c03\u5ea6\u961f\u5217\u6392\u6ee1\uff0c\u4f60\u7684\u65f6\u95f4\u7247\u88ab\u53cd\u590d\u62a2\u5360\u3002\u9047\u5230\u8fd9\u79cd\u89c4\u5f8b\u6027\u52a3\u5316\uff0c\u5148\u67e5 steal \u66f2\u7ebf\uff0c\u4e0d\u8981\u6025\u7740\u5347\u7ea7\u7a0b\u5e8f\u3002<\/p>\n<p>\u7b2c\u4e8c\u4e2a\u4fe1\u53f7\u662f&#8221;\u65e5\u5fd7\u91cc\u9891\u7e41\u51fa\u73b0\u8f6f\u9501&#8221;\u3002\u6267\u884c <code>dmesg | grep -i \"hung|blocked\"<\/code>\uff0c\u770b\u5230 <code>task blocked for more than 120 seconds<\/code> \u8fd9\u7c7b\u8bb0\u5f55\uff0c\u8bf4\u660e\u78c1\u76d8 I\/O \u6216 CPU \u8c03\u5ea6\u5ef6\u8fdf\u5df2\u4e25\u91cd\u5230\u5185\u6838\u544a\u8b66\u3002\u5f88\u591a\u8fd0\u7ef4\u8bef\u4ee5\u4e3a\u662f\u5e94\u7528 bug\uff0c\u5b9e\u9645\u4e0a\u5728\u91cd\u5ea6\u8d85\u552e\u7684\u5bbf\u4e3b\u673a\u4e0a\uff0c\u8fd9\u7c7b\u65e5\u5fd7\u51e0\u4e4e\u5fc5\u7136\u4f34\u968f\u9ad8 steal \u548c\u4f4e IOPS \u540c\u65f6\u51fa\u73b0\u3002<\/p>\n<p>\u7b2c\u4e09\u4e2a\u4fe1\u53f7\u662f&#8221;CPU \u7528\u91cf\u4e0d\u9ad8\u4f46\u8d1f\u8f7d\u5f88\u9ad8&#8221;\u3002\u5229\u7528\u7387\u8861\u91cf CPU \u5fd9\u4e0d\u5fd9\uff0c\u8d1f\u8f7d\u8861\u91cf\u6709\u591a\u5c11\u4efb\u52a1\u5728\u6392\u961f\u7b49 CPU\u3002\u5982\u679c <code>top<\/code> \u663e\u793a\u7528\u6237\u6001\u5360\u7528\u53ea\u6709 30%\uff0c\u4f46 load average \u662f\u6838\u6570\u7684\u4e24\u500d\uff0c\u8bf4\u660e\u5927\u91cf\u65f6\u95f4\u82b1\u5728\u7b49\u5f85\u8c03\u5ea6\u4e0a\u2014\u2014\u8fd9\u6b63\u662f\u865a\u62df\u5316\u5c42\u628a\u4f60\u7684\u65f6\u95f4\u7247\u5206\u7ed9\u522b\u4eba\u7684\u76f4\u63a5\u8bc1\u636e\u3002\u4e09\u4e2a\u4fe1\u53f7\u51fa\u73b0\u4efb\u610f\u4e24\u4e2a\uff0c\u5c31\u4e0d\u503c\u5f97\u518d\u6392\u67e5\u5e94\u7528\u5c42\uff0c\u76f4\u63a5\u6362\u673a\u5668\u662f\u6210\u672c\u6700\u4f4e\u7684\u89e3\u6cd5\u3002<\/p>\n<h2>\u4e0d\u540c\u9884\u7b97\u4e0b\u7684\u9009\u62e9\u7b56\u7565<\/h2>\n<p>\u7406\u89e3\u4e86\u539f\u7406\u548c\u9a8c\u8bc1\u65b9\u6cd5\uff0c\u6700\u540e\u843d\u5230\u94b1\u7684\u95ee\u9898\u4e0a\u3002\u9884\u7b97\u6bcf\u5e74 200 \u5143\u4ee5\u5185\u7684\u4e2a\u4eba\u9879\u76ee\uff0c\u9009\u8f7b\u5ea6\u8d85\u552e\u7684\u5171\u4eab\u6838\u5373\u53ef\uff0c\u8dd1\u5b8c\u9a8c\u8bc1\u6e05\u5355\u786e\u8ba4\u5408\u683c\u5c31\u80fd\u653e\u5fc3\u7528\uff1b\u9884\u7b97 500-1500 \u5143\u7684\u5916\u8d38\u7ad9\u6216\u5c0f\u578b\u7535\u5546\uff0c\u5efa\u8bae\u9009\u660e\u786e\u6807\u6ce8&#8221;\u4e0d\u8d85\u552e&#8221;\u6216&#8221;\u72ec\u4eab&#8221;\u7684\u65b9\u6848\uff0c\u8fd9\u4e00\u6863\u6ea2\u4ef7\u4e70\u7684\u662f\u9ad8\u5cf0\u671f\u7684\u786e\u5b9a\u6027\uff1b\u6570\u636e\u5e93\u548c SaaS \u4e1a\u52a1\u7684\u5e95\u7ebf\u662f\u72ec\u4eab\u6838\u52a0\u72ec\u7acb\u6570\u636e\u5e93\u5b9e\u4f8b\uff0c\u4e0d\u8981\u8ba9\u5e94\u7528\u548c\u6570\u636e\u5e93\u5728\u540c\u4e00\u53f0\u5171\u4eab\u6838\u673a\u5668\u91cc\u4e92\u76f8\u4e89\u62a2\u3002<\/p>\n<h2>\u8d2d\u4e70\u524d\u540e\u7684\u9a8c\u8bc1\u6e05\u5355<\/h2>\n<p>\u4e0e\u5176\u76f8\u4fe1\u5ba3\u4f20\u9875\uff0c\u4e0d\u5982\u7528\u4e00\u6761\u56fa\u5b9a\u7684\u9a8c\u8bc1\u6d41\u7a0b\u628a\u98ce\u9669\u524d\u7f6e\u3002\u8d2d\u4e70\u524d\u53ef\u4ee5\u5148\u67e5\u53e3\u7891\u548c\u9000\u8d39\u653f\u7b56\uff0c\u8d2d\u4e70\u540e 48 \u5c0f\u65f6\u5185\uff08\u5927\u90e8\u5206\u5382\u5546\u652f\u6301\u65e0\u7406\u7531\u9000\u6b3e\uff09\u5b8c\u6210\u4e0b\u9762\u8fd9\u7ec4\u5b9e\u6d4b\uff1a<\/p>\n<ul>\n<li>\u90e8\u7f72\u540e\u7acb\u523b\u6267\u884c <code>top<\/code> \u89c2\u5bdf 10 \u5206\u949f\uff1aCPU steal \u957f\u671f\u5927\u4e8e 5% \u5c31\u7533\u8bf7\u9000\u6b3e\uff0c\u4e0d\u8981\u7b49\u4e1a\u52a1\u4e0a\u7ebf\u540e\u518d\u6298\u817e\u3002<\/li>\n<li>\u8dd1\u4e00\u6b21 <code>sysbench cpu<\/code> \u548c <code>fio<\/code> \u968f\u673a\u8bfb\u5199\uff0c\u628a\u7ed3\u679c\u4e0e\u540c\u4ef7\u4f4d\u673a\u578b\u7684\u516c\u5f00\u6d4b\u8bc4\u5bf9\u6bd4\uff0c\u504f\u5dee\u8d85\u8fc7 40% \u5c31\u503c\u5f97\u8b66\u60d5\u3002<\/li>\n<li>\u7528 <code>dd if=\/dev\/zero of=test bs=1M count=1024 oflag=direct<\/code> \u770b\u78c1\u76d8\u987a\u5e8f\u5199\u5165\u901f\u5ea6\uff0c\u4f4e\u4e8e 80MB\/s \u7684\u673a\u5668\u8dd1\u6570\u636e\u5e93\u4f1a\u5f88\u96be\u53d7\u3002<\/li>\n<li>\u5728\u4e1a\u52a1\u9ad8\u5cf0\u65f6\u6bb5\uff08\u665a 8-11 \u70b9\uff09\u91cd\u590d\u6d4b\u4e00\u6b21 steal \u548c TTFB\uff0c\u8d85\u552e\u95ee\u9898\u51e0\u4e4e\u53ea\u5728\u8fd9\u4e2a\u7a97\u53e3\u66b4\u9732\u3002<\/li>\n<li>\u8fde\u7eed\u89c2\u5bdf 3 \u5929 <code>uptime<\/code> \u8d1f\u8f7d\u5747\u503c\uff0c\u5982\u679c\u7a7a\u8f7d\u72b6\u6001\u4e0b load average \u5c31\u8d85\u8fc7\u6838\u6570\u7684\u4e00\u534a\uff0c\u8bf4\u660e\u90bb\u5c45\u8d1f\u8f7d\u5df2\u7ecf\u5e38\u6001\u5316\u6324\u538b\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u7ec4\u68c0\u67e5\u4e0d\u9700\u8981\u989d\u5916\u4ed8\u8d39\u5de5\u5177\uff0c\u5168\u90e8\u57fa\u4e8e\u7cfb\u7edf\u81ea\u5e26\u547d\u4ee4\u3002\u673a\u5668\u4e0a\u7ebf\u540e\u7684\u65e5\u5e38\u76ef\u9632\u4e5f\u6709\u73b0\u6210\u65b9\u6cd5\uff0c\u53ef\u7ee7\u7eed\u9605\u8bfb <a href=\"https:\/\/cn.hostease.com\/blog\/guides\/node-exporter-vps-alerting\/\">VPS \u76d1\u63a7\u544a\u8b66\u4e0e\u8282\u70b9\u90e8\u7f72\u5b9e\u6218<\/a>\uff0c\u628a steal \u503c\u7eb3\u5165\u957f\u671f\u76d1\u63a7\uff0c\u8d85\u552e\u52a3\u5316\u4f1a\u5728\u7b2c\u4e00\u65f6\u95f4\u66b4\u9732\u3002<\/p>\n<p>\u5982\u679c\u4f60\u5728\u9009\u8d2d\u9636\u6bb5\u5c31\u503e\u5411\u7a33\u59a5\uff0c\u53ef\u4ee5\u53c2\u8003\u6211\u4eec\u4e4b\u524d\u6574\u7406\u7684 <a href=\"https:\/\/cn.hostease.com\/blog\/comparisons\/vps-server-decision-framework\/\">VPS \u4e0e\u4e91\u670d\u52a1\u5668\u9009\u8d2d\u51b3\u7b56\u6846\u67b6<\/a>\uff0c\u5b83\u628a\u914d\u989d\u3001\u7ebf\u8def\u548c\u7a33\u5b9a\u6027\u6307\u6807\u62c6\u6210\u4e86\u53ef\u91cf\u5316\u7684\u6253\u5206\u9879\u3002\u6b63\u89c4\u670d\u52a1\u5546\u7684\u505a\u6cd5\u662f\u628a\u8d85\u552e\u6bd4\u4f8b\u63a7\u5236\u5728\u5c0f\u8303\u56f4\u5185\u5e76\u63d0\u4f9b\u660e\u786e\u7684\u8d44\u6e90\u4fdd\u969c\u6761\u6b3e\uff0c\u4f8b\u5982 Hostease \u7684 <a href=\"https:\/\/cn.hostease.com\/vps\/\">VPS \u4e3b\u673a<\/a>\u65b9\u6848\u5728\u5957\u9910\u9875\u660e\u786e\u6807\u6ce8\u4e86\u6838\u6570\u5206\u914d\u65b9\u5f0f\u4e0e\u5e26\u5bbd\uff08\u5373\u670d\u52a1\u5668\u5bf9\u5916\u7684\u6570\u636e\u4f20\u8f93\u5bb9\u91cf\uff09\u7c7b\u578b\uff0c\u8fd9\u7c7b&#8221;\u628a\u8d44\u6e90\u53e3\u5f84\u5199\u6e05\u695a&#8221;\u7684\u5382\u5546\uff0c\u8e29\u5751\u6982\u7387\u8fdc\u4f4e\u4e8e\u53ea\u5f3a\u8c03\u4ef7\u683c\u4fbf\u5b9c\u7684\u6e20\u9053\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/vps-overselling-cpu-truth-monitoring.webp\" alt=\"\u663e\u793a\u5668\u4e0a\u7684\u8d1f\u8f7d\u66f2\u7ebf\u8fdb\u5165\u6a59\u8272\u544a\u8b66\u533a\u95f4\u7684\u6982\u5ff5\u63d2\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u628a\u8d44\u6e90\u53e3\u5f84\u5f53\u6210\u9009\u8d2d\u7684\u7b2c\u4e00\u6307\u6807<\/h2>\n<p>\u56de\u5934\u770b\u5f00\u7bc7\u7684\u95ee\u9898\uff1a\u540c\u6837&#8221;2 \u6838 4G&#8221;\u7684\u673a\u5668\u4e3a\u4ec0\u4e48\u5dee\u51e0\u500d\u2014\u2014\u7b54\u6848\u5df2\u7ecf\u6e05\u695a\u4e86\uff0c\u914d\u7f6e\u8868\u4e0a\u7684\u6570\u5b57\u53ea\u662f\u914d\u989d\u4e0a\u9650\uff0c\u771f\u5b9e\u4f53\u9a8c\u53d6\u51b3\u4e8e\u8d85\u552e\u6bd4\u4f8b\u548c\u8c03\u5ea6\u65b9\u5f0f\u3002\u9009\u8d2d\u65f6\u5efa\u8bae\u6309\u8fd9\u4e2a\u987a\u5e8f\u505a\u51b3\u7b56\uff1a\u5148\u7528 <code>top<\/code> \u7684 steal \u503c\u548c\u5b9e\u6d4b\u8dd1\u5206\u786e\u8ba4\u8d44\u6e90\u53e3\u5f84\uff0c\u518d\u5bf9\u6bd4\u4ef7\u683c\uff1b\u800c\u4e0d\u662f\u5148\u770b\u4ef7\u683c\u4fbf\u5b9c\uff0c\u4e0a\u7ebf\u540e\u88ab\u6162\u67e5\u8be2\u548c\u9ad8 TTFB \u62d6\u7740\u6392\u969c\u3002\u9047\u5230\u6301\u7eed\u9ad8\u4e8e 5% \u7684 CPU steal\u3001\u9ad8\u5cf0\u671f TTFB \u7ffb\u500d\u3001\u78c1\u76d8 IOPS \u8fdc\u4f4e\u4e8e\u6807\u79f0\u503c\u8fd9\u4e09\u79cd\u4fe1\u53f7\u4e2d\u7684\u4efb\u610f\u4e00\u79cd\uff0c\u5c31\u5e94\u8be5\u8003\u8651\u8fc1\u79fb\u3002<\/p>\n<p>\u603b\u7ed3\u4e00\u4e0b actionable \u7684\u5efa\u8bae\uff1a\u8f7b\u91cf\u7ad9\u70b9\u9009\u53e3\u7891\u53ef\u9760\u3001\u8f7b\u5ea6\u8d85\u552e\u7684\u5171\u4eab\u6838\u65b9\u6848\u5c31\u80fd\u7701\u94b1\uff1b\u6570\u636e\u5e93\u3001\u7535\u5546\u548c API \u670d\u52a1\u628a\u72ec\u4eab\u6838\u5f53\u6210\u786c\u6027\u8981\u6c42\uff1b\u65e0\u8bba\u54ea\u7c7b\u4e1a\u52a1\uff0c\u90fd\u5728\u9000\u6b3e\u671f\u5185\u5b8c\u6210 sysbench\u3001fio \u548c\u9ad8\u5cf0\u671f steal \u4e09\u9879\u5b9e\u6d4b\uff0c\u628a&#8221;\u8d85\u552e\u98ce\u9669&#8221;\u4ece\u4e0a\u7ebf\u540e\u7684\u4e8b\u6545\u53d8\u6210\u4e0a\u7ebf\u524d\u7684\u7b5b\u9009\u6761\u4ef6\u3002\u5982\u679c\u4f60\u9700\u8981\u4e00\u53f0\u8d44\u6e90\u53e3\u5f84\u900f\u660e\u7684\u8d77\u70b9\uff0cHostease \u7684 VPS \u65b9\u6848\u548c <a href=\"https:\/\/cn.hostease.com\/blog\/guides\/overseas-hosting-risk-checklist\/\">\u670d\u52a1\u5668\u9009\u8d2d\u907f\u5751\u6e05\u5355<\/a>\u53ef\u4ee5\u4f5c\u4e3a\u4ea4\u53c9\u53c2\u8003\uff0c\u5148\u9a8c\u8bc1\u3001\u518d\u4ed8\u8d39\uff0c\u6c38\u8fdc\u662f\u6700\u7701\u94b1\u7684\u8def\u5f84\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u8bc6\u522b VPS \u8d85\u552e\u548c\u5171\u4eab\u6838\u9677\u9631\uff1f\u672c\u6587\u7528\u5b9e\u6d4b\u547d\u4ee4\u548c\u771f\u5b9e\u6570\u636e\u8bb2\u89e3\u8d85\u552e\u3001\u5171\u4eab\u6838\u4e0e\u72ec\u4eab\u8d44\u6e90\u7684\u5dee\u5f02\uff0c\u5e2e\u52a9\u4f60\u907f\u5f00\u4f4e\u4ef7 VPS 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