{"id":208464,"date":"2025-09-29T17:25:35","date_gmt":"2025-09-29T09:25:35","guid":{"rendered":"https:\/\/www.server.hk\/blog\/208464\/"},"modified":"2025-09-29T17:25:36","modified_gmt":"2025-09-29T09:25:36","slug":"vps-15","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/208464\/","title":{"rendered":"\u9999\u6e2fVPS\u865a\u62df\u5316\u4f18\u5316\uff1a\u5168\u9762\u63d0\u5347\u8d44\u6e90\u5229\u7528\u7387\u7684\u5b9e\u6218\u7b56\u7565"},"content":{"rendered":"<p>\u5728\u4e9a\u592a\u7f51\u7edc\u67a2\u7ebd\u7684\u80cc\u666f\u4e0b\uff0c\u9999\u6e2fVPS\u6210\u4e3a\u4e86\u8bb8\u591a\u7ad9\u957f\u3001\u4f01\u4e1a\u548c\u5f00\u53d1\u8005\u8fdb\u884c\u7f51\u7ad9\u6258\u7ba1\u3001\u5e94\u7528\u90e8\u7f72\u548c\u8fb9\u7f18\u52a0\u901f\u7684\u9996\u9009\u3002\u8981\u5728\u6709\u9650\u7684\u786c\u4ef6\u548c\u7f51\u7edc\u8d44\u6e90\u4e0a\u5b9e\u73b0\u9ad8\u6027\u80fd\u4e0e\u9ad8\u53ef\u7528\uff0c\u5e76\u975e\u4ec5\u9760\u66f4\u5f3a\u7684CPU\u6216\u66f4\u591a\u5185\u5b58\u5373\u53ef\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u9762\u5411\u9999\u6e2fVPS\u7684\u865a\u62df\u5316\u4f18\u5316\u5b9e\u6218\u7b56\u7565\uff0c\u6db5\u76d6\u5e95\u5c42\u539f\u7406\u3001\u5178\u578b\u5e94\u7528\u573a\u666f\u3001\u4e0e\u5176\u4ed6\u5730\u533a\uff08\u5982\u7f8e\u56fdVPS\u3001\u7f8e\u56fd\u670d\u52a1\u5668\uff09\u7684\u4f18\u52bf\u5bf9\u6bd4\uff0c\u4ee5\u53ca\u5b9e\u9645\u9009\u8d2d\u4e0e\u90e8\u7f72\u5efa\u8bae\uff0c\u5e2e\u52a9\u8bfb\u8005\u5168\u9762\u63d0\u5347\u8d44\u6e90\u5229\u7528\u7387\u4e0e\u670d\u52a1\u8d28\u91cf\u3002<\/p>\n<h2>\u865a\u62df\u5316\u57fa\u672c\u539f\u7406\u4e0e\u5e38\u89c1\u6280\u672f\u6808<\/h2>\n<p>\u8981\u5bf9\u9999\u6e2fVPS\u8fdb\u884c\u6709\u6548\u4f18\u5316\uff0c\u9996\u5148\u9700\u8981\u7406\u89e3\u865a\u62df\u5316\u7684\u57fa\u672c\u539f\u7406\u548c\u4e3b\u6d41\u5b9e\u73b0\uff1a<\/p>\n<ul>\n<li><b>\u5168\u865a\u62df\u5316\uff08KVM\/VMware\uff09<\/b>\uff1a\u901a\u8fc7\u786c\u4ef6\u8f85\u52a9\u865a\u62df\u5316\uff08Intel VT-x\/AMD-V\uff09\u8fd0\u884c\u5b8c\u6574\u64cd\u4f5c\u7cfb\u7edf\uff0c\u9694\u79bb\u6027\u5f3a\uff0c\u9002\u5408\u9700\u8981\u5185\u6838\u7ea7\u9694\u79bb\u7684\u5de5\u4f5c\u8d1f\u8f7d\u3002<\/li>\n<li><b>\u5bb9\u5668\u5316\uff08LXC\u3001Docker\u3001Kubernetes\uff09<\/b>\uff1a\u5171\u4eab\u5bbf\u4e3b\u673a\u5185\u6838\u3001\u8f7b\u91cf\u5316\u542f\u52a8\uff0c\u9002\u5408\u5fae\u670d\u52a1\u548c\u9ad8\u5bc6\u5ea6\u90e8\u7f72\u3002<\/li>\n<li><b>\u8f7b\u91cf\u865a\u62df\u5316\uff08OpenVZ\/virtio\uff09<\/b>\uff1a\u4ecb\u4e8e\u5bb9\u5668\u4e0e\u5168\u865a\u62df\u5316\u4e4b\u95f4\uff0c\u8d44\u6e90\u5206\u914d\u66f4\u7075\u6d3b\uff0cI\/O 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\u4f18\u5316<\/h3>\n<p>\u5b58\u50a8\u901a\u5e38\u662fVPS\u6027\u80fd\u74f6\u9888\u96c6\u4e2d\u5730\u3002\u4f18\u5316\u8981\u70b9\uff1a<\/p>\n<ul>\n<li><b>\u9009\u62e9\u5408\u9002\u7684\u955c\u50cf\u683c\u5f0f<\/b>\uff1a\u5bf9\u4e8e\u9891\u7e41\u5199\u5165\u7684\u5de5\u4f5c\u8d1f\u8f7d\u4f18\u5148\u4f7f\u7528raw\u683c\u5f0f\u51cf\u5c11\u8f6c\u6362\u5f00\u9500\uff0c\u800cqcow2\u9002\u5408\u5feb\u7167\u4e0e\u6574\u5907\u73af\u5883\u3002<\/li>\n<li><b>Virtio \u9a71\u52a8\u4e0evhost<\/b>\uff1a\u542f\u7528virtio\u548cvhost-net\u53ef\u4ee5\u663e\u8457\u63d0\u5347\u7f51\u7edc\u4e0e\u78c1\u76d8I\/O\u6027\u80fd\uff0c\u964d\u4f4eCPU\u5360\u7528\u3002<\/li>\n<li><b>I\/O \u8c03\u5ea6\u5668\u4e0e\u6587\u4ef6\u7cfb\u7edf\u8c03\u4f18<\/b>\uff1a\u5bf9SSD\/NVMe\u91c7\u7528noop\u6216deadline\u8c03\u5ea6\u5668\uff0c\u6587\u4ef6\u7cfb\u7edf\u5c42\u9762\u7981\u7528atime\uff08noatime\uff09\uff0c\u5408\u7406\u8bbe\u7f6ecommit\/flush\u7b56\u7565\u3002<\/li>\n<li><b>\u7f13\u5b58\u7b56\u7565<\/b>\uff1a\u4f7f\u7528\u5185\u5b58\u7f13\u5b58\uff08Redis\u3001memcached\uff09\u3001\u9a71\u52a8\u7ea7\u7f13\u5b58\u6216L2ARC\uff08ZFS\uff09\u6765\u964d\u4f4e\u7269\u7406\u76d8I\/O\u8d1f\u8f7d\u3002\u5bf9\u4e8e\u5199\u5bc6\u96c6\u578b\u6570\u636e\u5e93\uff0c\u8003\u8651\u5c06\u4e8b\u52a1\u65e5\u5fd7\u653e\u5230\u66f4\u5feb\u7684\u5b58\u50a8\u6216\u4f7f\u7528\u72ec\u7acb\u7684SSD\u3002<\/li>\n<li><b>\u5e76\u53d1IO\u4e0eio_uring<\/b>\uff1a\u5bf9\u652f\u6301\u7684\u5185\u6838\u7248\u672c\u542f\u7528io_uring\u4ee5\u83b7\u5f97\u66f4\u4f4e\u5ef6\u8fdf\u548c\u66f4\u9ad8\u5e76\u53d1\u7684I\/O\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h3>\u7f51\u7edc\u4f18\u5316\u4e0e\u5ef6\u8fdf\u63a7\u5236<\/h3>\n<p>\u7f51\u7edc\u662f\u9999\u6e2fVPS\u7684\u4e00\u5927\u4f18\u52bf\uff08\u5730\u7406\u90bb\u8fd1\u4e2d\u56fd\u5927\u9646\u3001\u4e1c\u5357\u4e9a\uff09\uff0c\u4f46\u4e5f\u9700\u7cbe\u7ec6\u8c03\u4f18\uff1a<\/p>\n<ul>\n<li><b>\u542f\u7528\u5927MTU\/Jumbo Frames<\/b>\uff1a\u5728\u63a7\u5236\u8303\u56f4\u5185\u542f\u75289000 MTU\u53ef\u4ee5\u51cf\u5c11CPU\u5f00\u9500\u5e76\u63d0\u5347\u541e\u5410\u3002<\/li>\n<li><b>SR-IOV \u4e0e DPDK<\/b>\uff1a\u5bf9\u9ad8\u6027\u80fd\u7f51\u5361\u4e0e\u7279\u6b8a\u5e94\u7528\uff08\u9ad8\u9891\u4ea4\u6613\u3001\u5b9e\u65f6\u5a92\u4f53\uff09\u91c7\u7528SR-IOV\u6216DPDK\u76f4\u901a\u4ee5\u51cf\u5c11\u865a\u62df\u5316\u5f00\u9500\u3002<\/li>\n<li><b>TCP \u6808\u8c03\u4f18<\/b>\uff1a\u9488\u5bf9\u9ad8\u5e76\u53d1\u573a\u666f\u8c03\u6574TCP 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