{"id":10021132,"date":"2025-12-19T16:47:26","date_gmt":"2025-12-19T08:47:26","guid":{"rendered":"https:\/\/itmax.cn\/?p=10021132"},"modified":"2025-12-19T16:47:26","modified_gmt":"2025-12-19T08:47:26","slug":"%e9%98%bf%e9%87%8c%e4%ba%91-tair-%e5%9f%ba%e4%ba%8e-3fs-%e5%b7%a5%e7%a8%8b%e5%8c%96%e8%90%bd%e5%9c%b0-kvcache%ef%bc%9a%e4%bc%81%e4%b8%9a%e7%ba%a7%e9%83%a8%e7%bd%b2%e3%80%81%e9%ab%98%e5%8f%af%e7%94%a8","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10021132","title":{"rendered":"\u963f\u91cc\u4e91 Tair \u57fa\u4e8e 3FS \u5de5\u7a0b\u5316\u843d\u5730 KVCache\uff1a\u4f01\u4e1a\u7ea7\u90e8\u7f72\u3001\u9ad8\u53ef\u7528\u8fd0\u7ef4\u4e0e\u6027\u80fd\u8c03\u4f18\u5b9e\u8df5"},"content":{"rendered":"<blockquote>\n<h2>\u5bfc\u8bfb<\/h2>\n<p>\u63a5\u7740<a href=\"https:\/\/link.segmentfault.com\/?enc=Cx4fP0owaZCuPAlBRlwZRQ%3D%3D.ztlySuQNTrit4T%2BbD1OvDTSVa2Y9rPhAFO48zt92O7LzeLxbzQ%2BTvucX%2FAQ1XP%2BQ\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">\u4e0a\u4e00\u8282\u5185\u5bb9<\/a>\uff0c\u672c\u6587\u7cfb\u7edf\u4ecb\u7ecd\u4e86\u963f\u91cc\u4e91 Tair KVCache \u56e2\u961f\u4e0e\u670d\u52a1\u5668\u7814\u53d1\u5b58\u50a8\u8f6f\u786c\u4ef6\u7ed3\u5408\u56e2\u961f\u5bf9 3FS\uff08\u9ad8\u6027\u80fd KVCache \u5e95\u5ea7\uff09\u5f00\u5c55\u7684\u5168\u65b9\u4f4d\u5de5\u7a0b\u5316\u5347\u7ea7\u5b9e\u8df5\u3002<br \/>\u9762\u5411 AI \u5927\u6a21\u578b\u63a8\u7406\u4e2d\u9ad8\u541e\u5410\u3001\u4f4e\u5ef6\u8fdf\u3001\u5f3a\u7a33\u5b9a\u6027\u7684\u6838\u5fc3\u8bc9\u6c42\uff0c\u56e2\u961f\u4ece\u6027\u80fd\u8c03\u4f18\u3001\u4ea7\u54c1\u5316\u589e\u5f3a\u4e0e\u4e91\u539f\u751f\u7ba1\u7406\u4e09\u5927\u7ef4\u5ea6\u63a8\u8fdb\u6df1\u5ea6\u4f18\u5316\uff1a<br \/>\u5728\u6027\u80fd\u5c42\uff0c\u901a\u8fc7 RDMA \u6d41\u91cf\u5747\u8861\u4e0e\u5c0f I\/O \u53c2\u6570\u8c03\u4f18\uff0c\u5b9e\u73b0 4K \u968f\u673a\u8bfb IOPS \u63d0\u5347 150%\uff0c\u5e76\u96c6\u6210\u5168\u7528\u6237\u6001\u843d\u76d8\u5f15\u64ce\u4ee5\u964d\u4f4e\u8d44\u6e90\u5f00\u9500\uff1b<br \/>\u5728\u4ea7\u54c1\u5c42\uff0c\u89e3\u51b3 Mgmtd IP \u6f02\u79fb\u3001\u5b58\u50a8\u5206\u914d\u5931\u8861\u7b49\u5173\u952e\u7a33\u5b9a\u6027\u95ee\u9898\uff0c\u65b0\u589e GDR \u96f6\u62f7\u8d1d\u4e0e\u591a\u79df\u6237\u9694\u79bb\u673a\u5236\uff0c\u652f\u6301 HBM \u7f13\u5b58\u4e0e\u540e\u7aef\u5b58\u50a8\u7684\u7aef\u5230\u7aef\u9ad8\u6548\u534f\u540c\uff1b<br \/>\u5728\u8fd0\u7ef4\u5c42\uff0c\u57fa\u4e8e Kubernetes Operator \u6784\u5efa\u4e91\u539f\u751f\u7ba1\u63a7\u4f53\u7cfb\uff0c\u5b9e\u73b0\u4e00\u952e\u90e8\u7f72\u3001\u6545\u969c\u81ea\u6108\u3001\u5f39\u6027\u6269\u7f29\u5bb9\u4e0e\u591a\u96c6\u7fa4\u9694\u79bb\uff0c\u5e76\u914d\u5957\u53ef\u89c6\u5316\u76d1\u63a7\u5927\u76d8\uff0c\u663e\u8457\u964d\u4f4e AI \u57fa\u7840\u8bbe\u65bd\u7684\u8fd0\u7ef4\u590d\u6742\u5ea6\u4e0e\u4eba\u529b\u6210\u672c\u3002<br \/>\u672c\u5b9e\u8df5\u4e3a\u9ad8\u6027\u80fd KVCache \u5728\u4f01\u4e1a\u7ea7 AI \u573a\u666f\u4e2d\u7684\u89c4\u6a21\u5316\u843d\u5730\u63d0\u4f9b\u4e86\u53ef\u590d\u7528\u7684\u6280\u672f\u8303\u5f0f\u3002<br \/>\u672c\u7cfb\u5217\u6280\u672f\u6587\u7ae0\u5c06\u7cfb\u7edf\u6027\u62c6\u89e3\u9762\u5411\u667a\u80fd\u4f53\u63a8\u7406\u7684 KVCache \u6280\u672f\u6f14\u8fdb\u8def\u5f84\uff1a<\/p>\n<ol>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=gUVAiGLj20C9zYDmqDWdKw%3D%3D.pNZ0MnjdDpbPL%2BfInt4g1sLkc1nSvSOcs0jMj2bCLmNLtB0v6iUjKQ8%2BZ5LnwYFK\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">\u667a\u80fd\u4f53\u5f0f\u63a8\u7406\u5bf9 KVCache \u7684\u6311\u6218\u4e0e SGLang HiCache \u6280\u672f\u6df1\u5ea6\u5256\u6790<\/a><\/li>\n<li>\u672c\u6587 | 3FS-KVCache \u5de5\u7a0b\u5316\u843d\u5730\uff1a\u4f01\u4e1a\u7ea7\u90e8\u7f72\u3001\u9ad8\u53ef\u7528\u8fd0\u7ef4\u4e0e\u6027\u80fd\u8c03\u4f18\u5b9e\u8df5<\/li>\n<li>Hybrid Model Support\uff1aSGLang \u5bf9 Mamba-Transformer \u7b49\u6df7\u5408\u67b6\u6784\u6a21\u578b\u7684\u652f\u6301\u65b9\u6848<\/li>\n<li>Tair KVCache Manager\uff1a\u4f01\u4e1a\u7ea7\u5168\u5c40 KVCache \u7ba1\u7406\u670d\u52a1\u7684\u67b6\u6784\u8bbe\u8ba1\u4e0e\u5b9e\u73b0<\/li>\n<li>KVCache \u4eff\u771f\u5206\u6790\uff1a\u9ad8\u7cbe\u5ea6\u7684\u8ba1\u7b97\u548c\u7f13\u5b58\u6a21\u62df\u5de5\u4e1a\u7ea7\u5b9e\u8df5<\/li>\n<li>Hierarchical Sparse Attention\uff1a\u5206\u5c42\u7a00\u758f\u6ce8\u610f\u529b\u6846\u67b6\u4e0b\u7684 KV \u5206\u5c42\u7ba1\u7406\u4e0e\u6309\u9700\u52a0\u8f7d<\/li>\n<li>\u5c55\u671b\uff1aKVCache\u9a71\u52a8\u7684\u8f6f\u786c\u7ed3\u5408\u6f14\u8fdb<\/li>\n<\/ol>\n<p><strong>Tair KVCache \u4f5c\u4e3a\u963f\u91cc\u4e91\u6570\u636e\u5e93Tair\u4ea7\u54c1\u80fd\u529b\u7684\u5ef6\u4f38\uff0c\u672c\u8d28\u662f\u7f13\u5b58\u8303\u5f0f\u7684\u4e09\u6b21\u8dc3\u8fc1\uff1a<\/strong><br \/>\ud83d\udd39 \u4ece Redis \u7684 \u201c\u7f13\u5b58\u6570\u636e \u2192 \u51cf\u5c11 I\/O\u201d<br \/>\ud83d\udd39 \u5230 GPU KVCache \u7684 \u201c\u7f13\u5b58\u8ba1\u7b97\u4e2d\u95f4\u6001 \u2192 \u51cf\u5c11\u91cd\u590d\u8ba1\u7b97\u201d<br \/>\ud83d\udd39 \u518d\u5230 Tair KVCache \u7684 <strong>\u201c\u89c4\u6a21\u5316\u3001\u667a\u80fd\u5316\u7684\u6ce8\u610f\u529b\u72b6\u6001\u7ba1\u7406 \u2192 \u91cd\u6784\u5927\u6a21\u578b\u63a8\u7406\u6210\u672c\u6a21\u578b\u201d<\/strong> \u5b83\u6807\u5fd7\u7740\u7f13\u5b58\u6b63\u4ece\u8f85\u52a9\u7ec4\u4ef6\u5347\u7ea7\u4e3aAI \u57fa\u7840\u8bbe\u65bd\u5c42\u7684\u6838\u5fc3\u80fd\u529b\u2014\u2014\u8ba9\u201c\u72b6\u6001\u201d\u53ef\u5b58\u50a8\u3001\u53ef\u5171\u4eab\u3001\u53ef\u8c03\u5ea6\uff0c\u652f\u6491\u667a\u80fd\u4f53\u65f6\u4ee3\u7684\u89c4\u6a21\u5316\u63a8\u7406\u5e95\u5ea7\u3002<\/p>\n<\/blockquote>\n<h2>1.\u7b80\u4ecb<\/h2>\n<h3>1.1 KVCache \u7b80\u4ecb<\/h3>\n<p>\u5728\u5927\u8bed\u8a00\u6a21\u578b\u7684\u63a8\u7406\u9636\u6bb5\uff0c\u751f\u6210\u5f0f\u63a8\u7406\u672c\u8d28\u4e0a\u9075\u5faa\u81ea\u56de\u5f52\u8303\u5f0f\uff1a\u6a21\u578b\u6309\u987a\u5e8f\u9010\u4e2a\u8f93\u51fa token\uff0c\u6bcf\u4e00\u6b65\u7684\u9884\u6d4b\u90fd\u4f9d\u8d56\u4e8e\u6b64\u524d\u5df2\u751f\u6210\u7684\u6240\u6709\u5185\u5bb9\u3002\u8fd9\u79cd\u673a\u5236\u867d\u7136\u6709\u52a9\u4e8e\u7ef4\u6301\u8f93\u51fa\u7684\u8bed\u4e49\u4e00\u81f4\u6027\uff0c\u5374\u4e5f\u5f15\u5165\u4e86\u660e\u663e\u7684\u8ba1\u7b97\u5197\u4f59\u2014\u2014\u5c24\u5176\u662f\u5728\u6ce8\u610f\u529b\u673a\u5236\u4e2d\uff0cKey\uff08K\uff09\u548c Value\uff08V\uff09\u5411\u91cf\u7684\u91cd\u590d\u8ba1\u7b97\u6210\u4e3a\u6027\u80fd\u74f6\u9888\u3002<br \/>\u5177\u4f53\u6765\u8bf4\uff0c\u6bcf\u5f53\u751f\u6210\u4e00\u4e2a\u65b0\u7684 token \u65f6\uff0c\u6a21\u578b\u9700\u5c06\u5176\u5bf9\u5e94\u7684 Query\uff08Q\uff09\u4e0e\u6240\u6709\u5386\u53f2 token \u7684 K \u548c V \u8fdb\u884c\u70b9\u79ef\u64cd\u4f5c\uff0c\u4ee5\u8ba1\u7b97\u6ce8\u610f\u529b\u6743\u91cd\u5e76\u805a\u5408\u4e0a\u4e0b\u6587\u4fe1\u606f\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u5386\u53f2 token \u7684 K \u548c V \u5728\u540e\u7eed\u751f\u6210\u6b65\u9aa4\u4e2d\u59cb\u7ec8\u4fdd\u6301\u4e0d\u53d8\u3002\u82e5\u5728\u6bcf\u6b21\u89e3\u7801\u65f6\u90fd\u91cd\u65b0\u8ba1\u7b97\u8fd9\u4e9b\u4e0d\u53d8\u7684\u5411\u91cf\uff0c\u5c06\u5bfc\u81f4\u5927\u91cf\u65e0\u6548\u8ba1\u7b97\u3002<br \/>\u4e3a\u5e94\u5bf9\u8fd9\u4e00\u95ee\u9898\uff0c\u4e1a\u754c\u666e\u904d\u91c7\u7528 KVCache \u6280\u672f\uff1a\u5373\u5728\u9996\u6b21\u751f\u6210\u6bcf\u4e2a token \u65f6\uff0c\u5c06\u5176 K \u548c V \u5411\u91cf\u7f13\u5b58\u8d77\u6765\uff0c\u5e76\u5728\u540e\u7eed\u81ea\u56de\u5f52\u8fc7\u7a0b\u4e2d\u76f4\u63a5\u590d\u7528\uff0c\u4ece\u800c\u8df3\u8fc7\u91cd\u590d\u7684\u524d\u5411\u8ba1\u7b97\u3002\u8fd9\u9879\u4f18\u5316\u5927\u5e45\u51cf\u5c11\u4e86\u63a8\u7406\u5ef6\u8fdf\uff0c\u663e\u8457\u63d0\u5347\u4e86\u541e\u5410\u80fd\u529b\uff0c\u5df2\u6210\u4e3a\u73b0\u4ee3\u5927\u8bed\u8a00\u6a21\u578b\u5b9e\u73b0\u9ad8\u6548\u6d41\u5f0f\u751f\u6210\u7684\u6838\u5fc3\u624b\u6bb5\u4e4b\u4e00\u3002<\/p>\n<h3>1.2 L3 KVCache \u9700\u6c42\u548c\u9009\u578b<\/h3>\n<p>\u968f\u7740\u5927\u8bed\u8a00\u6a21\u578b\uff08LLM\uff09\u63a8\u7406\u573a\u666f\u5411\u957f\u4e0a\u4e0b\u6587\u3001\u9ad8\u5e76\u53d1\u3001\u4f4e\u5ef6\u8fdf\u65b9\u5411\u5feb\u901f\u6f14\u8fdb\uff0c\u5c24\u5176\u5728\u591a\u8f6e\u5bf9\u8bdd\u3001RAG\uff08\u68c0\u7d22\u589e\u5f3a\u751f\u6210\uff09\u7b49\u5178\u578b\u5e94\u7528\u4e2d\uff0c\u6a21\u578b\u9700\u9891\u7e41\u8bbf\u95ee\u6d77\u91cf\u5386\u53f2\u4e0a\u4e0b\u6587\u6216\u5916\u90e8\u77e5\u8bc6\uff0c\u56e0\u6b64\u5bf9\u4e8e\u6269\u5c55KVCache \u7684\u5b58\u50a8\u9009\u578b\u4e0a\u6211\u4eec\u770b\u5230\u4ee5\u4e0b\u7279\u70b9\uff1a<br \/><img loading=\"lazy\" decoding=\"async\" width=\"723\" height=\"195\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdnprp\" alt=\"image.png\" title=\"image.png\"><\/p>\n<p>L3 \u5c42 SSD KVCache \u5b58\u50a8\u65b9\u6848\u89e3\u51b3\u5171\u4eab\u5bb9\u91cf\u53ca\u6210\u672c\u4e0a\u7684\u95ee\u9898\uff0c\u4f46\u662f\u76ee\u524d\u5e38\u7528\u7684\u5206\u5e03\u5f0f\u6587\u4ef6\u5b58\u50a8\u90fd\u6709\u5176\u81ea\u8eab\u7684\u5c40\u9650\u6027\u3002\u4f20\u7edf\u7684\u95ed\u6e90\u89e3\u51b3\u65b9\u6848\u5982 GPFS \u867d\u7136\u6027\u80fd\u5f3a\u5927\uff0c\u4f46\u5176\u9ad8\u6602\u7684\u4f7f\u7528\u6210\u672c\u548c\u590d\u6742\u7684\u540e\u7eed\u7ef4\u62a4\u4f18\u5316\u5de5\u4f5c\u6210\u4e3a\u4f01\u4e1a\u90e8\u7f72\u7684\u4e3b\u8981\u963b\u788d\u3002\u800c\u4e3b\u6d41\u7684\u5f00\u6e90\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\u5e38\u805a\u7126\u4e8e\u901a\u7528\u5b58\u50a8\u7684\u573a\u666f\uff0c\u4f46\u5728 KVCache \u7684\u5e94\u7528\u573a\u666f\u4e0b\u4ecd\u5b58\u5728\u660e\u663e\u7684\u5c40\u9650\u6027\uff1a\u4ee5 Ceph \u4e3a\u4f8b\uff0c\u5176\u4f5c\u4e3a\u901a\u7528\u6587\u4ef6\u5b58\u50a8\u7cfb\u7edf\u88ab\u5e7f\u6cdb\u91c7\u7528\uff0c\u4f46\u5728 KVCache \u8fd9\u4e00\u7279\u6b8a\u573a\u666f\u4e2d\uff0c\u5176\u8bbe\u8ba1\u65e0\u6cd5\u6ee1\u8db3\u9ad8\u5e26\u5bbd\u548c\u4f4e\u5ef6\u8fdf\u7684\u6838\u5fc3\u6027\u80fd\u8981\u6c42\uff1bJuiceFS \u63d0\u4f9b\u4e86\u7075\u6d3b\u7684\u67b6\u6784\u8bbe\u8ba1\uff0c\u4f46\u5176\u548c\u540e\u7aef\u5bf9\u8c61\u5b58\u50a8\u4f9d\u8d56\u8fc7\u6df1\u4f7f\u5f97\u6027\u80fd\u53d7\u9650\uff0c\u9ad8\u8026\u5408\u5ea6\u4e5f\u589e\u52a0\u4e86\u7cfb\u7edf\u8fd0\u7ef4\u7684\u590d\u6742\u6027\u548c\u6f5c\u5728\u98ce\u9669\u3002<br \/>3FS \u4f5c\u4e3a DeepSeek \u5f00\u6e90\u7684\u9ad8\u6027\u80fd\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\uff0c\u51ed\u501f\u5176\u9ad8\u541e\u5410\u3001\u4f4e\u5ef6\u8fdf\u3001\u5927\u5bb9\u91cf\u5171\u4eab\u5b58\u50a8\u7279\u6027\uff0c\u4e3a AI \u8bad\u7ec3\u4e0e\u63a8\u7406\u63d0\u4f9b\u4e86\u6781\u5177\u7ade\u4e89\u529b\u7684\u5b58\u50a8\u5e95\u5ea7\u3002<\/p>\n<h3>1.3 3FS \u4ecb\u7ecd<\/h3>\n<p>3FS\uff08Fire-Flyer File System\uff09\u662f\u5f00\u6e90\u7684\u9ad8\u6027\u80fd\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\uff0c\u5b83\u5229\u7528 SSD \u548c RDMA \u7f51\u7edc\u6765\u63d0\u4f9b\u5171\u4eab\u5b58\u50a8\u5c42\u4ee5\u7b80\u5316\u5206\u5e03\u5f0f\u5e94\u7528\u7684\u5f00\u53d1\u30023FS \u65e8\u5728\u5e94\u5bf9\u4eba\u5de5\u667a\u80fd\u8bad\u7ec3\u548c\u63a8\u7406\u5de5\u4f5c\u8d1f\u8f7d\u7684\u6311\u6218\uff0c\u63d0\u4f9b\u6bd4\u57fa\u4e8e DRAM \u7684\u7f13\u5b58\u66f4\u5177\u6210\u672c\u6548\u76ca\u7684\u66ff\u4ee3\u65b9\u6848\uff0c\u5177\u5907\u9ad8\u541e\u5410\u91cf\u548c\u5927\u5bb9\u91cf\u7684\u7279\u6027\u3002<br \/>3FS \u6838\u5fc3\u7ec4\u4ef6\u5305\u542b Fuse\u3001Meta\u3001Mgmtd \u548c Storage\uff0c\u6240\u6709\u7ec4\u4ef6\u901a\u8fc7 RDMA \u7f51\u7edc\u8fde\u63a5\uff0c\u5404\u7ec4\u4ef6\u4e4b\u95f4\u7684\u4ea4\u4e92\u5173\u7cfb\u5982\u4e0b\u56fe\u6240\u793a\uff1a<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486329\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe1 3FS\u67b6\u6784\u56fe<br \/>\uff081\uff09Mgmtd\uff1a\u7ba1\u63a7\u670d\u52a1\uff0c\u91c7\u7528\u4e3b\u5907\u7b56\u7565\u4fdd\u8bc1\u81ea\u8eab\u9ad8\u53ef\u7528\uff0c\u5f53\u4e3b\u8282\u70b9\u5931\u6548\uff0c\u53e6\u4e00\u4e2a Mgmtd \u526f\u672c\u4f1a\u88ab\u9009\u4e3a\u65b0\u7684\u4e3b\u8282\u70b9\u3002Mgmtd \u7ba1\u7406\u96c6\u7fa4\u7684\u914d\u7f6e\uff0c\u6240\u6709 Meta \u7ec4\u4ef6\u3001Storage \u7ec4\u4ef6\u4ee5\u53ca Fuse \u5ba2\u6237\u7aef\u5747\u901a\u8fc7\u5468\u671f\u6027\u7684\u5fc3\u8df3\u673a\u5236\u7ef4\u6301\u5176\u5728\u7ebf\u72b6\u6001\uff0c\u540c\u65f6\uff0c\u5404\u7ec4\u4ef6\u4f1a\u5468\u671f\u6027\u5730\u4ece Mgmtd \u83b7\u53d6\u96c6\u7fa4\u7684\u6700\u65b0\u72b6\u6001\uff08\u5982\u96c6\u7fa4\u62d3\u6251\u3001ChainTable \u4fe1\u606f\u7b49\uff09\u3002<br \/>\uff082\uff09Meta\uff1a\u5143\u6570\u636e\u670d\u52a1\uff08\u5982 open\/close \u6587\u4ef6\uff09\uff0c\u5b9e\u73b0\u4e86\u6587\u4ef6\u7cfb\u7edf\u8bed\u4e49\u3002Meta \u662f\u65e0\u72b6\u6001\u670d\u52a1\uff0c\u5c06\u5143\u6570\u636e\u4fe1\u606f\u6301\u4e45\u5316\u5230\u4e8b\u52a1\u6027KV\u6570\u636e\u5e93 FoundationDB\uff0c\u652f\u6301\u591a\u4e2a Meta \u670d\u52a1\u6269\u5c55\uff0c\u5ba2\u6237\u7aef\u53ef\u4ee5\u8fde\u63a5\u5230\u4efb\u610f\u4e00\u4e2a\u5143\u6570\u636e\u670d\u52a1\uff0c\u540c\u65f6 Meta \u4f1a\u6839\u636e InodeId \u8f6c\u53d1\u8bf7\u6c42\u3002<br \/>\uff083\uff09Storage\uff1a\u5b58\u50a8\u670d\u52a1\u57fa\u4e8e\u672c\u5730\u6587\u4ef6\u7cfb\u7edf\u7ba1\u7406 SSD \u5b58\u50a8\u8d44\u6e90\uff0cStorage \u6240\u7ba1\u7406\u7684\u6bcf\u5757 SSD \u4e0a\uff0c\u4f1a\u88ab\u62bd\u8c61\u51fa\u82e5\u5e72\u4e2a\u903b\u8f91\u5b58\u50a8\u5355\u5143 Target\uff0c\u4e0d\u540c Storage \u7684 Target \u4e4b\u95f4\u7ec4\u6210\u4e00\u6761 Chain\uff0c\u526f\u672c\u4e4b\u95f4\u901a\u8fc7\u94fe\u5f0f\u590d\u5236\u534f\u8bae\uff08CRAQ\uff09\u6765\u786e\u4fdd\u5f3a\u4e00\u81f4\u6027\uff0c\u8bfb\u6587\u4ef6\u4f1a\u968f\u673a\u9009\u62e9 Chain \u4e0a\u7684\u4e00\u4e2a Target \u8bfb\u53d6\uff0c\u5199\u6587\u4ef6\u5219\u5199 Chain \u7684 Head Target\uff0c\u7136\u540e\u901a\u8fc7 CRAQ \u534f\u8bae\u94fe\u5f0f\u5199\u540c\u6b65\u526f\u672c\u6570\u636e\u3002CRAQ \u7684\u8fd9\u79cd\u201c\u5199\u5168\u90e8\u3001\u8bfb\u4efb\u4e00\u201d\u673a\u5236\u6709\u52a9\u4e8e\u5145\u5206\u53d1\u6325 SSD \u548c RDMA \u7f51\u7edc\u7684\u541e\u5410\u80fd\u529b\uff0c\u5c24\u5176\u5bf9\u8bfb\u5e26\u5bbd\u5341\u5206\u53cb\u597d\u3002<br \/>\uff084\uff09Client\uff1aFUSE \u662f Linux \u5185\u6838\u63d0\u4f9b\u7684\u4e00\u79cd\u7528\u6237\u6001\u6587\u4ef6\u7cfb\u7edf\u63a5\u53e3\uff0c\u5141\u8bb8\u7528\u6237\u901a\u8fc7\u6807\u51c6\u7684 POSIX \u6587\u4ef6\u64cd\u4f5c\u8bed\u4e49\u8bbf\u95ee\u975e\u5185\u6838\u5b9e\u73b0\u7684\u6587\u4ef6\u7cfb\u7edf\u30023FS \u901a\u8fc7 FUSE \u670d\u52a1\uff0c\u4f7f\u7528\u6237\u80fd\u591f\u4ee5\u719f\u6089\u7684\u6587\u4ef6\u7cfb\u7edf\u65b9\u5f0f\u900f\u660e\u5730\u64cd\u4f5c 3FS \u96c6\u7fa4\u4e2d\u7684\u6587\u4ef6\uff0c\u9002\u7528\u4e8e\u5927\u591a\u6570\u5bf9\u517c\u5bb9\u6027\u8981\u6c42\u8f83\u9ad8\u7684\u5e94\u7528\u573a\u666f\u3002<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486330\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>   \u56fe2 \u6587\u4ef6Chunk\u5206\u5e03       <br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486331\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe3 3FS\u5ba2\u6237\u7aef<br \/>\u6b64\u5916\uff0c3FS \u8fd8\u63d0\u4f9b\u4e86 USRBIO \u5ba2\u6237\u7aef\u63a5\u53e3\uff0c \u8be5\u63a5\u53e3\u662f\u4e00\u5957\u7528\u6237\u6001\u3001\u5f02\u6b65\u3001\u96f6\u62f7\u8d1d API\uff0c\u4f7f\u7528\u65f6\u9700\u8981\u4e1a\u52a1\u4ee3\u7801\u8fdb\u884c\u4e00\u5b9a\u7a0b\u5ea6\u7684\u9002\u914d\u548c\u4fee\u6539\u3002\u5176\u5143\u6570\u636e\u64cd\u4f5c\u4ecd\u7136\u4f9d\u8d56\u4e8e Fuse \uff0c\u4f46\u6bcf\u4e2a\u8bfb\u5199\u8bf7\u6c42\u53ef\u4ee5\u76f4\u63a5\u4ece\u7528\u6237\u8fdb\u7a0b\u53d1\u9001\u7ed9 FUSE Daemon\uff0c\u6d88\u9664\u4e86\u7cfb\u7edf\u8c03\u7528\u4e0a\u4e0b\u6587\u5207\u6362\u548c\u6570\u636e\u62f7\u8d1d\u5f00\u9500\uff0c\u5b9e\u73b0\u4e86\u66f4\u9ad8\u7684\u6027\u80fd\u3002<\/p>\n<h4>1.3.1 3FS \u5728 KVCache \u573a\u666f\u7684\u6838\u5fc3\u4f18\u52bf<\/h4>\n<p>3FS \u4f5c\u4e3a\u4e13\u4e3a\u5e76\u884c\u8ba1\u7b97\u73af\u5883\u8bbe\u8ba1\u7684\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\uff0c\u5728 KVCache \u573a\u666f\u4e2d\u7684\u4f18\u52bf\uff1a<br \/><strong>\u5bb9\u91cf\u548c\u6210\u672c<\/strong>\uff1a3FS \u5145\u5206\u8003\u8651\u5230 KVCache \u5bf9\u5927\u5bb9\u91cf\u5b58\u50a8\u7a7a\u95f4\u7684\u57fa\u672c\u9700\u6c42\uff0c\u5bf9\u5927\u91cf\u5b58\u50a8\u8282\u70b9\u4e0a\u7684SSD\u8d44\u6e90\u8fdb\u884c\u7edf\u4e00\u6c60\u5316\u7ba1\u7406\uff0c\u63d0\u4f9bPB\u7ea7\u7684\u5b58\u50a8\u6c60\uff0c\u6709\u6548\u652f\u6491\u5927\u89c4\u6a21\u6570\u636e\u5904\u7406\u9700\u6c42\uff0c\u540c\u65f6\u5728\u6027\u80fd\u548c\u6210\u672c\u4e4b\u95f4\u5b9e\u73b0\u4e86\u7406\u60f3\u7684\u5e73\u8861\u3002<br \/><strong>\u5bbd\u5e26\u548c\u5ef6\u8fdf<\/strong>\uff1a3FS \u91c7\u7528\u5168\u94fe\u8def\u7aef\u5230\u7aef\u7684 RDMA \u4f20\u8f93\uff0c\u4fdd\u8bc1\u6570\u636e\u4f20\u8f93\u7684\u9ad8\u5e26\u5bbd\u3001\u4f4e\u5ef6\u8fdf\uff0c\u540c\u65f6 USRBIO \u5ba2\u6237\u7aef\u96f6\u62f7\u8d1d\u673a\u5236\u4f18\u5316\u6570\u636e\u4f20\u8f93\u8def\u5f84\uff0c\u51cf\u5c11\u7528\u6237\u6001\u548c\u5185\u6838\u6001\u4e0a\u4e0b\u6587\u5207\u6362\u5f00\u9500\uff0c\u8fdb\u4e00\u6b65\u964d\u4f4e I\/O \u5ef6\u8fdf\u3002\u6839\u636e 3FS \u5b98\u65b9\u516c\u5e03\u7684\u6570\u636e\uff0c\u5728\u4e00\u4e2a\u5305\u542b 180 \u4e2a\u5b58\u50a8\u8282\u70b9\u7684\u96c6\u7fa4\u4e2d\uff0c\u8bfb\u5e26\u5bbd\u8fbe\u5230\u7ea6 6.6TiB\/s\u3002<br \/><strong>\u8bfb\u4f18\u5148\u7b56\u7565<\/strong>\uff1a\u8003\u8651\u5230 KVCache \u5178\u578b\u7684\u8bfb\u591a\u5199\u5c11\u8bbf\u95ee\u6a21\u5f0f\uff0c3FS \u5728\u8bbe\u8ba1\u65f6\u7279\u522b\u4f18\u5316\u4e86\u8bfb\u53d6\u8def\u5f84\u7684\u6548\u7387\u3002\u57fa\u4e8e Chain Replication with Apportioned Queries (CRAQ) \u534f\u8bae\uff0c\u8bfb\u64cd\u4f5c\u53ef\u968f\u673a\u9009\u62e9\u526f\u672c\uff0c\u5728\u9762\u5bf9\u5927\u89c4\u6a21\u8bfb\u53d6\u8bf7\u6c42\u65f6\u4ecd\u80fd\u4fdd\u6301\u5353\u8d8a\u7684\u6027\u80fd\u8868\u73b0\uff0c\u5145\u5206\u9002\u5e94\u4e86 KVCache \u573a\u666f\u4e2d\u8bfb\u53d6\u5bc6\u96c6\u578b\u7684\u5de5\u4f5c\u8d1f\u8f7d\u7279\u5f81\u3002<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486332\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe4 3FS\u5b98\u65b9\u6027\u80fd\u6570\u636e<\/p>\n<h4>1.3.2 \u5f00\u6e90 3FS \u7684\u5c40\u9650\u6027\u4e0e\u4f18\u5316\u6311\u6218<\/h4>\n<p>\u540c\u65f6\u5f00\u6e90\u7684 3FS \u6709\u4ee5\u4e0b\u4e0d\u8db3\uff1a<\/p>\n<ul>\n<li>\u591a\u7ec4\u4ef6\u534f\u540c\u590d\u6742\u6027\u95ee\u9898\uff1a\u5728\u4e91\u539f\u751f\u5f02\u6784\u73af\u5883\u4e2d\uff0c\u5728 GPU\/HBM \u8ba1\u7b97\u5355\u5143\u3001RDMA \u7f51\u7edc\u67b6\u6784\u4e0e NVMe \u5b58\u50a8\u4ecb\u8d28\u6784\u6210\u7684\u5f02\u6784\u4f53\u7cfb\u4e2d\uff0c\u7f3a\u4e4f\u7edf\u4e00\u7684\u8de8\u5c42\u534f\u540c\u673a\u5236\uff1bIP \u5730\u5740\u6f02\u79fb\u5f15\u53d1\u7ec4\u4ef6\u72b6\u6001\u4e0d\u4e00\u81f4\u95ee\u9898\uff0c\u5f62\u6210\u5206\u5e03\u5f0f\u5b64\u5c9b\u6548\u5e94\uff0c\u96be\u4ee5\u6ee1\u8db3\u9ad8\u5e76\u53d1AI\u63a8\u7406\u573a\u666f\u4e0b\u591a\u6a21\u578b\u5e76\u884c\u3001\u591a\u9636\u6bb5\u6d41\u6c34\u7ebf\u7684\u52a8\u6001\u5f39\u6027\u8c03\u5ea6\u9700\u6c42\u3002<\/li>\n<li>\u8d44\u6e90\u5229\u7528\u7387\u4f4e\u7b49\u95ee\u9898\uff0c<strong>I\/O\u4fa7<\/strong>\uff1a\u5c0f I\/O \u5bc6\u96c6\u578b\u8d1f\u8f7d\uff08\u5982 KVCache \u68c0\u7d22\u3001Attention \u7f13\u5b58\u843d\u76d8\uff09\u4e0b\u4f20\u7edf\u5185\u6838\u65c1\u8def\u65b9\u6848\u4ecd\u5b58\u5728 CPU \u7ed1\u6838\u7ade\u4e89\u4e0e\u5185\u5b58\u62f7\u8d1d\u74f6\u9888\uff0cHBM \u2192 DRAM \u2192 SSD \u591a\u7ea7\u843d\u76d8\u94fe\u8def\u5ef6\u8fdf\u9ad8\u3001\u5e26\u5bbd\u5229\u7528\u7387\u4e0d\u8db3 40%\uff1b<strong>\u8ba1\u7b97\u4fa7<\/strong>\uff1a\u7f3a\u4e4f GDR\uff08GPU Direct RDMA\uff09\u652f\u6301\u65f6\uff0c\u6570\u636e\u9700\u7ecf Host \u5185\u5b58\u4e2d\u8f6c\uff0cGPU \u663e\u5b58\u4e0e\u5b58\u50a8\u95f4\u5e26\u5bbd\u6d6a\u8d39\u663e\u8457\uff1b<strong>\u8c03\u5ea6\u4fa7<\/strong>\uff1a\u5b58\u50a8\u8d44\u6e90\u5206\u914d\u4e0d\u5408\u7406\uff0c\u968f\u7740\u96c6\u7fa4\u89c4\u6a21\u589e\u957f\uff0c\u5b58\u5728\u5b58\u50a8\u5bb9\u91cf\/\u5e26\u5bbd\u70ed\u70b9\u95ee\u9898\uff0c\u65e0\u6cd5\u968f\u6570\u636e\u91cf\u589e\u957f\u4fdd\u6301\u8d1f\u8f7d\u5747\u8861\u3002<\/li>\n<li><strong>\u4e91\u539f\u751f\u8fd0\u7ef4\u80fd\u529b\u8584\u5f31<\/strong>\uff1a\u90e8\u7f72\u4e0e\u751f\u547d\u5468\u671f\u7ba1\u7406\u4f9d\u8d56\u4eba\u5de5\u811a\u672c\uff0c\u7f3a\u4e4f\u58f0\u660e\u5f0f API \u4e0e\u72b6\u6001\u81ea\u7701\u80fd\u529b\uff1b\u6545\u969c\u6062\u590d\u4f9d\u8d56\u4eba\u5de5\u4ecb\u5165\uff08\u5982 Storage \u6545\u969c\u540e\u9700\u8981\u624b\u52a8\u91cd\u5efa\uff09\uff1b\u76d1\u63a7\u4f53\u7cfb\u7f3a\u5c11\u53ef\u89c6\u5316\u65b9\u6848\uff0c\u8fd0\u7ef4\u590d\u6742\u5e76\u96be\u4ee5\u6ee1\u8db3 SLO \u9a71\u52a8\u7684 AIOps \u9700\u6c42\u3002<\/li>\n<\/ul>\n<p>\u56e0\u6b64\uff0c<strong>\u963f\u91cc\u4e91 Tair \u56e2\u961f\u548c\u670d\u52a1\u5668\u7814\u53d1\u5b58\u50a8\u8f6f\u786c\u4ef6\u7ed3\u5408\u56e2\u961f<\/strong>\u4ee5 3FS \u4e3a\u57fa\u7840\uff0c\u901a\u8fc7\u7cfb\u7edf\u7ea7\u6539\u9020\u9002\u914d\u53ca\u4ea7\u54c1\u5316\u80fd\u529b\u63d0\u5347\uff0c\u4e3a Tair KVCache \u4ea7\u54c1\u63d0\u4f9b L3 \u7ea7 KVcache \u80fd\u529b\u5e76\u5f00\u6e90\u81f3 SGLang\u3001vLLM \u7b49\u63a8\u7406\u5f15\u64ce\u793e\u533a\u4e2d\u3002\u901a\u8fc7\u8be5\u65b9\u6848\u5b9e\u73b0\u4e86\u5168\u5c40 KVCache \u7684\u9ad8\u6548\u590d\u7528\uff0c\u5728\u964d\u4f4e\u663e\u5b58\u538b\u529b\u7684\u540c\u65f6\uff0c\u8fdb\u4e00\u6b65\u63d0\u5347\u63a8\u7406\u6548\u7387\u4e0e\u8d44\u6e90\u5229\u7528\u6c34\u5e73\u3002<\/p>\n<h2>2. 3FS \u8fdb\u5316\u4e4b\u8def<\/h2>\n<p>\u963f\u91cc\u4e91\u670d\u52a1\u5668\u7814\u53d1\u5b58\u50a8\u8f6f\u786c\u4ef6\u7ed3\u5408\u56e2\u961f\u4ece\u6027\u80fd\u8c03\u4f18\u3001\u4ea7\u54c1\u5316\u589e\u5f3a\u3001\u4e91\u539f\u751f\u5316\u7ba1\u7406\u7b49\u7ef4\u5ea6\u5bf9 3FS \u8fdb\u884c\u4e86\u7cfb\u7edf\u6027\u5347\u7ea7\uff1a<\/p>\n<ul>\n<li>\u6027\u80fd\u7a81\u7834\uff1a\u901a\u8fc7 RDMA \u6d41\u91cf\u5747\u8861\u4f18\u5316\u4e0e\u5c0f I\/O \u573a\u666f\u53c2\u6570\u8c03\u4f18\uff0c\u5c06 4K \u968f\u673a\u8bfb IOPS \u63d0\u5347 150%\uff0c\u5e76\u5f15\u5165 \u5168\u7528\u6237\u6001\u843d\u76d8\u5f15\u64ce\u8fdb\u4e00\u6b65\u964d\u4f4e\u8d44\u6e90\u6d88\u8017\uff1b<\/li>\n<li>\u4ea7\u54c1\u529b\u589e\u5f3a\uff1a\u653b\u514b Mgmtd IP \u6f02\u79fb\u3001\u5b58\u50a8\u5206\u914d\u4e0d\u5747\u7b49\u7a33\u5b9a\u6027\u95ee\u9898\uff0c\u65b0\u589e GDR \u96f6\u62f7\u8d1d\u4e0e\u591a\u79df\u9694\u79bb\u80fd\u529b\uff0c\u5b9e\u73b0 HBM \u5230\u5b58\u50a8\u7684\u7aef\u5230\u7aef\u9ad8\u6548\u534f\u540c\uff1b<\/li>\n<li>\u4e91\u539f\u751f\u7ba1\u7406\uff1a\u57fa\u4e8e Kubernetes Operator \u5b9e\u73b0\u4e00\u952e\u90e8\u7f72\u3001\u6545\u969c\u81ea\u6108\u3001\u591a\u96c6\u7fa4\u9694\u79bb\uff0c\u7ed3\u5408\u5f39\u6027\u6269\u5bb9\u4e0e\u76d1\u63a7\u5927\u76d8\uff0c\u663e\u8457\u964d\u4f4e AI \u57fa\u7840\u8bbe\u65bd\u7684\u8fd0\u7ef4\u95e8\u69db\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486333\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe5 3FS\u4ea7\u54c1\u56fe<\/p>\n<h3>2.1 \u6027\u80fd\u4f18\u5316<\/h3>\n<p>\u6211\u4eec\u4f7f\u7528\u7269\u7406\u5b58\u50a8\u670d\u52a1\u5668\u5bf9 3FS \u8fdb\u884c\u4e86\u672c\u5730\u90e8\u7f72\u9a8c\u8bc1\u548c\u6027\u80fd\u8c03\u4f18\uff0c\u5b9e\u9a8c\u73af\u5883\u7684\u5173\u952e\u786c\u4ef6\u914d\u7f6e\u53ca\u96c6\u7fa4\u62d3\u6251\u7ed3\u6784\u6982\u89c8\u5982\u4e0b\uff1a<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486334\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<h4>\uff081\uff09\u5927 I\/O \u573a\u666f\u4e0b\u7684 RDMA \u7f51\u7edc\u914d\u7f6e\u4e0e I\/O \u5e76\u53d1\u914d\u7f6e\u8c03\u4f18<\/h4>\n<p>3FS \u5728\u5927\u5757 I\/O \u8bfb\u5e26\u5bbd\u65b9\u9762\u8868\u73b0\u4f18\u5f02\uff0c\u4f46\u968f\u7740\u5ba2\u6237\u7aef\u6570\u91cf\u589e\u52a0\uff0c\u603b\u8bfb\u5e26\u5bbd\u672a\u7ebf\u6027\u589e\u957f\uff0c\u53cd\u800c\u56e0\u5ba2\u6237\u7aef\u95f4 I\/O \u5e72\u6270\u800c\u4e0b\u964d\u3002\u8fdb\u4e00\u6b65\u5206\u6790\u53d1\u73b0 RDMA \u7f51\u7edc\u6d41\u91cf\u5206\u5e03\u4e25\u91cd\u4e0d\u5747\uff0c\u90e8\u5206\u7f51\u5361\u5229\u7528\u7387\u4f4e\u4e8e 40%\uff0c\u800c\u53e6\u4e00\u4e9b\u5df2\u63a5\u8fd1 100% \u9971\u548c\uff0c\u4e3b\u8981\u539f\u56e0\u662f RDMA \u961f\u5217\u5bf9\uff08QP\uff09\u6570\u91cf\u4e0d\u8db3\u3002\u901a\u8fc7\u8c03\u6574\u76f8\u5173\u7684 QP \u914d\u7f6e\u53c2\u6570\uff0c\u7f51\u5361\u7aef\u53e3\u6d41\u91cf\u5747\u8861\u5206\u5e03\uff0c\u603b\u8bfb\u5e26\u5bbd\u968f\u5ba2\u6237\u7aef\u6570\u7ebf\u6027\u63d0\u5347\uff0c 3FS \u5728\u5927\u89c4\u6a21\u5206\u5e03\u5f0f\u573a\u666f\u4e0b\u7684\u826f\u597d\u53ef\u6269\u5c55\u6027\u3002<br \/>\u9488\u5bf9\u5199\u5e26\u5bbd\u7684\u74f6\u9888\uff0c\u589e\u52a0\u4e86 I\/O \u94fe\u8def\u4e0a\u7684\u5e76\u53d1\u914d\u7f6e\uff0c\u5728\u4e0a\u8ff0\u4f18\u5316\u540e\uff0c\u5355 USRBIO \u5ba2\u6237\u7aef\u5bf9 4M I\/O \u7684\u8bfb\u5199\u5e26\u5bbd\u4ece\u4e4b\u524d\u7684 29.5GB\/s\u30015312MB\/s \u63d0\u5347\u5230 40.2GB\/s\u300131.4GB\/s\u3002<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486335\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<h4>\uff082\uff09\u5c0f I\/O \u573a\u666f\u4e0b\u7684\u53c2\u6570\u8c03\u4f18\u53ca\u843d\u76d8\u5f15\u64ce\u5347\u7ea7<\/h4>\n<p>\u5728\u6027\u80fd\u6d4b\u8bd5\u4e2d\uff0c3FS \u7684\u5c0f\u5757\uff084K~64K\uff09\u968f\u673a\u8bfb IOPS \u8f83\u4f4e\uff0c\u5355\u4e2a Storage \u8282\u70b9\u7684 4K \u968f\u673a\u8bfb IOPS \u4ec5200K \u5de6\u53f3\uff0c\u7ecf\u5206\u6790\u786e\u8ba4\uff0c\u6027\u80fd\u74f6\u9888\u4e3b\u8981\u6e90\u4e8e\u5728\u5c0f I\/O \u8bfb\u573a\u666f\u4e0b Storage \u7684\u76d1\u542c\u7ebf\u7a0b\u8d44\u6e90\u8017\u5c3d\u3002\u9488\u5bf9\u8fd9\u4e00\u95ee\u9898\uff0c\u6211\u4eec\u5bf9 Storage \u7ec4\u4ef6\u7684\u591a\u9879\u53c2\u6570\u8fdb\u884c\u4e86\u8c03\u4f18\uff0c\u5305\u62ec\u76d1\u542c\u7ebf\u7a0b\u6570\u3001I\/O \u5de5\u4f5c\u7ebf\u7a0b\u6570\u3001\u961f\u5217\u6df1\u5ea6\u7b49\u3002\u7ecf\u8fc7\u4f18\u5316\u914d\u7f6e\uff0c\u5728\u76f8\u540c\u6d4b\u8bd5\u6761\u4ef6\u4e0b\uff0c4K \u968f\u673a\u8bfb IOPS \u63d0\u5347\u81f3\u7ea6 500K\uff0c\u6027\u80fd\u63d0\u5347\u7ea6 150%\u3002<br \/>\u57fa\u4e8e\u4e0a\u8ff0\u4f18\u5316\uff0c\u8003\u8651\u5230\u5757\u5b58\u50a8\u76f8\u6bd4\u6587\u4ef6\u5b58\u50a8\u5728\u968f\u673a\u5c0f I\/O \u573a\u666f\u66f4\u5177\u4f18\u52bf\uff0c\u6211\u4eec\u4ee5\u5168\u7528\u6237\u6001\u5b58\u50a8\u5f15\u64ce\u66ff\u6362\u539f\u6709\u7684\u672c\u5730\u6587\u4ef6\u7cfb\u7edf\u4f5c\u4e3a 3FS \u7684\u843d\u76d8\u5f15\u64ce\uff08\u5982\u4e0b\u56fe\u6240\u793a\uff09\u3002\u6d4b\u8bd5\u7ed3\u679c\u663e\u793a\uff0c\u5728\u4e0a\u8ff0\u53c2\u6570\u8c03\u4f18\u7684\u57fa\u7840\u4e0a\uff0c\u4f7f\u7528\u5168\u7528\u6237\u6001\u5b58\u50a8\u5f15\u64ce\u540e\uff0c\u7cfb\u7edf\u8d44\u6e90\u6d88\u8017\u660e\u663e\u964d\u4f4e\uff1aCPU\u4f7f\u7528\u7387\u4e0b\u964d\u7ea6 27%\u3002<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486336\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe6 \u5168\u7528\u6237\u6001\u5b58\u50a8\u5f15\u64ce<\/p>\n<h3>2.2 \u529f\u80fd\u6269\u5c55<\/h3>\n<p>\u968f\u7740 3FS \u5728\u4e0d\u540c\u73af\u5883\u4e0b\u7684\u89c4\u6a21\u5316\u5e94\u7528\uff0c\u5176\u5728\u96c6\u7fa4\u7a33\u5b9a\u6027\u3001\u5b58\u50a8\u8d44\u6e90\u5229\u7528\u7387\u53ca\u6027\u80fd\u8868\u73b0\u65b9\u9762\u9762\u4e34\u591a\u91cd\u6311\u6218\u3002\u4e3a\u653b\u514b\u8fd9\u4e9b\u6280\u672f\u96be\u5173\uff0c\u6211\u4eec\u4ece\u591a\u7ef4\u5ea6\u5bf9 3FS \u8fdb\u884c\u7cfb\u7edf\u6027\u589e\u5f3a\uff1a<\/p>\n<ul>\n<li>\u9ad8\u53ef\u7528\u67b6\u6784\u52a0\u56fa\uff1a\u901a\u8fc7 DNS \u89e3\u8026\u4e0e\u591a\u7f51\u5361\u63a2\u6d4b\u673a\u5236\uff0c\u5b9e\u73b0 Mgmtd \u670d\u52a1\u7684\u65e0\u7f1d\u5207\u4e3b\u4e0e\u8de8\u96c6\u7fa4\u5bb9\u9519\uff1b<\/li>\n<li>\u5b58\u50a8\u8d44\u6e90\u7cbe\u7ec6\u5316\u7ba1\u7406\uff1a\u91cd\u6784 ChainTable \u751f\u6210\u89c4\u5219\u4e0e\u6587\u4ef6\u7684 Chain \u5206\u914d\u7b56\u7565\uff0c\u6d88\u9664\u5bb9\u91cf\u5206\u914d\u4e0d\u5747\u4e0e\u8d44\u6e90\u6d6a\u8d39\uff1b<\/li>\n<li>\u7aef\u5230\u7aef\u6027\u80fd\u7a81\u7834\uff1a\u4f7f\u80fd GPU Direct RDMA\uff08GDR\uff09\u6280\u672f\uff0c\u6d88\u9664 HBM \u5230\u5185\u5b58\u7684\u5197\u4f59\u62f7\u8d1d\uff1b<\/li>\n<li>\u5b89\u5168\u4e0e\u6269\u5c55\u6027\u5347\u7ea7\uff1a\u5f15\u5165\u591a\u79df\u6237\u9694\u79bb\u80fd\u529b\uff0c\u652f\u6301\u79df\u6237\u7ea7\u8bbf\u95ee\u63a7\u5236\u4e0e\u6570\u636e\u7269\u7406\u9694\u79bb\u3002<\/li>\n<\/ul>\n<h4>\uff081\uff09Mgmtd IP \u53d8\u5316\u5bfc\u81f4\u96c6\u7fa4\u4e0d\u53ef\u7528<\/h4>\n<p>Mgmtd \u7ec4\u4ef6\u8d1f\u8d23\u7ef4\u62a4 3FS \u96c6\u7fa4\u7684\u5168\u5c40\u62d3\u6251\u4fe1\u606f\u548c\u5404\u7ec4\u4ef6\u7684\u72b6\u6001\uff0c\u4e00\u65e6\u5176\u4ed6\u7ec4\u4ef6\u65e0\u6cd5\u8fde\u63a5\u5230 Mgmtd Primary \u670d\u52a1\uff0c\u5c31\u65e0\u6cd5\u83b7\u53d6\u6700\u65b0\u7684\u96c6\u7fa4\u72b6\u6001\uff0c\u4ece\u800c\u5bfc\u81f4\u6574\u4e2a 3FS \u96c6\u7fa4\u5904\u4e8e\u4e0d\u53ef\u7528\u72b6\u6001\u3002<br \/>\u4e3a\u4e86\u7b80\u5316 3FS \u7684\u90e8\u7f72\u6d41\u7a0b\uff0c\u6211\u4eec\u91c7\u7528\u4e86\u5bb9\u5668\u5316\u90e8\u7f72\u65b9\u5f0f\u3002\u7136\u800c\uff0c\u5728\u5b9e\u9645\u8fd0\u884c\u4e2d\uff0c\u5f53 Mgmtd Pod \u56e0\u8fdb\u7a0bOOM\u3001Pod \u88ab\u9a71\u9010\u6216\u8282\u70b9\u4e0b\u7ebf\u7b49\u539f\u56e0\u53d1\u751f\u91cd\u542f\u6216\u8fc1\u79fb\u65f6\uff0c\u5176\u5bf9\u5916\u66b4\u9732\u7684 IP \u5730\u5740\u4f1a\u53d1\u751f\u53d8\u5316\uff0c\u5bfc\u81f4\u5176\u4ed6\u7ec4\u4ef6\u65e0\u6cd5\u91cd\u65b0\u5efa\u7acb\u4e0e Mgmtd \u7684\u8fde\u63a5\uff0c\u8fdb\u800c\u5f71\u54cd\u96c6\u7fa4\u7a33\u5b9a\u6027\u3002<br \/>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\uff0c\u6211\u4eec\u5728 Mgmtd Client \u4e2d\u5f15\u5165\u4e86 DNS \u89e3\u6790\u673a\u5236\uff0c\u901a\u8fc7\u4f7f\u7528 DNS \u540d\u79f0\u66ff\u4ee3\u786c\u7f16\u7801\u7684 Mgmtd IP \u5730\u5740\u5217\u8868\uff0c\u5b9e\u73b0\u5bf9 Mgmtd \u670d\u52a1\u7684\u9ad8\u53ef\u7528\u8bbf\u95ee\u3002\u5728 Kubernetes \u73af\u5883\u4e2d\uff0c\u6211\u4eec\u57fa\u4e8e Headless Service \u5b9e\u73b0\u8be5\u673a\u5236\uff0c\u4f7f\u5f97\u5373\u4f7f Mgmtd Pod \u53d1\u751f\u53d8\u66f4\uff0c\u5176\u4ed6\u7ec4\u4ef6\u4e5f\u80fd\u901a\u8fc7\u56fa\u5b9a\u89c4\u5219\u7684 DNS \u540d\u79f0\u81ea\u52a8\u53d1\u73b0\u5e76\u91cd\u65b0\u8fde\u63a5\u5230\u5f53\u524d\u7684\u4e3b\u8282\u70b9\uff0c\u4ece\u800c\u63d0\u5347\u7cfb\u7edf\u7684\u5bb9\u9519\u80fd\u529b\u4e0e\u53ef\u7528\u6027\u3002<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486337\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe7 DNS \u89e3\u6790\u673a\u5236<\/p>\n<h4>\uff082\uff09\u6587\u4ef6\u5bb9\u91cf\u5206\u914d\u4e0d\u5747\u5300\uff0c\u65e0\u6cd5\u5145\u5206\u5229\u7528\u540e\u7aef\u5b58\u50a8\u7a7a\u95f4<\/h4>\n<p>3FS \u521b\u5efa\u6587\u4ef6\u65f6\uff0c\u4f1a\u6309\u7167\u5faa\u73af\u7684\u65b9\u5f0f\u4e3a\u6587\u4ef6\u5206\u914d ChainTable \u4e2d\u8fde\u7eed stripe size \u6570\u76ee\u7684 Chain\uff0c\u5b9e\u73b0Chain \u7ef4\u5ea6\u7684\u201c\u8d1f\u8f7d\u5747\u8861\u201d\uff0c\u7136\u800c ChainTable \u9ed8\u8ba4\u7684\u751f\u6210\u89c4\u5219\u4f1a\u5c06\u5404\u4e2a\u8282\u70b9\u4e0a\u76f8\u540c disk index \u7684\u76d8\u6392\u5e03\u5728\u540c\u4e00\u6761 Chain \u4e0a\uff0c\u4e14\u8fd9\u4e9b\u76f8\u540c\u76d8\u4f4d\u7684 Chain \u5728 ChainTable \u4e2d\u76f8\u90bb\u3002\u5f53 stripe size \u8f83\u5c0f\uff0cTarget \u6570\u76ee\u8f83\u591a\u65f6\uff0c\u4f1a\u51fa\u73b0\u6587\u4ef6\u53ea\u80fd\u4f7f\u7528\u5c11\u90e8\u5206\u76d8\u5bb9\u91cf\u7684\u60c5\u51b5\uff0c\u5bfc\u81f4\u5355\u6587\u4ef6\u7684\u5bb9\u91cf\u4e0a\u9650\u5b58\u5728\u74f6\u9888\uff0c\u65e0\u6cd5\u5b8c\u5168\u5229\u7528\u6240\u6709\u5b58\u50a8\u8282\u70b9\u7684\u7a7a\u95f4\u3002<br \/>\u4e3a\u6b64\uff0c\u6211\u4eec\u5bf9 ChainTable \u521b\u5efa\u7684\u5206\u914d\u7b56\u7565\u8fdb\u884c\u4e86\u4f18\u5316\uff0c\u5728\u751f\u6210 ChainTable \u7684\u65f6\u5019\u968f\u673a\u6253\u6563\u5404\u4e2a\u5b58\u50a8\u8282\u70b9\u4e0a\u7684 Target \u6392\u5e03\uff0c\u5e76\u8bbe\u7f6e\u6ee1\u8db3\u4e0a\u8ff0\u6761\u4ef6\u7684\u6700\u5c0f stripe size\uff0c\u4f7f\u6bcf\u4e2a 3FS \u6587\u4ef6\u80fd\u591f\u5145\u5206\u5229\u7528\u540e\u7aef\u5b58\u50a8\u7a7a\u95f4\u3002<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486338\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe8 ChainTable\u751f\u6210\u89c4\u5219\u4f18\u5316<\/p>\n<h4>\uff083\uff09\u6269\u5bb9\u65f6\u5b58\u50a8\u7a7a\u95f4\u4f7f\u7528\u4e0d\u5747\u8861\uff0c\u5bfc\u81f4\u90e8\u5206\u6587\u4ef6\u4e0d\u53ef\u7528<\/h4>\n<p>\u5728 3FS \u6269\u5bb9\u8fc7\u7a0b\u4e2d\uff0c\u7531\u4e8e\u6587\u4ef6\u521b\u5efa\u65f6\u968f\u673a\u9009\u62e9 Chain \u5217\u8868\uff0c\u5bfc\u81f4\u6269\u5bb9\u524d\u7684 SSD \u4f7f\u7528\u7387\u8fc7\u9ad8\uff0c\u800c\u6269\u5bb9\u540e\u7684 SSD \u5b58\u50a8\u7a7a\u95f4\u4f7f\u7528\u7387\u4f4e\uff0c\u5bfc\u81f4\u90e8\u5206\u6587\u4ef6\u521b\u5efa\u540e\u7531\u4e8e\u540e\u7aef\u5b58\u50a8\u5360\u6ee1\u800c\u65e0\u6cd5\u5199\u5165\u6570\u636e\u3002<br \/>\u9488\u5bf9\u6b64\u95ee\u9898\uff0c\u6211\u4eec\u8c03\u6574\u4e86\u6587\u4ef6\u5206\u5e03\u7b97\u6cd5\uff0c\u91c7\u7528\u4e86\u57fa\u4e8e\u5b58\u50a8\u4f7f\u7528\u91cf\u4e3a\u4f18\u5148\u7ea7\u7684\u5206\u914d\u7b56\u7565\uff0c\u5b9e\u73b0\u4e86\u66f4\u5747\u5300\u7684\u5b58\u50a8\u8d1f\u8f7d\u5747\u8861\uff0c\u786e\u4fdd\u6269\u5bb9\u540e\u65b0\u521b\u5efa\u7684\u6587\u4ef6\u80fd\u591f\u4f18\u5148\u5206\u914d\u4f7f\u7528\u7387\u66f4\u4f4e\u7684\u5b58\u50a8\u8282\u70b9\uff0c\u6b63\u5e38\u8bfb\u5199\u3002<\/p>\n<h4>\uff084\uff09\u591a\u7f51\u5361\u73af\u5883\u4e0b Mgmtd Primary \u6545\u969c\u540e\uff0c\u7ec4\u4ef6\u65e0\u6cd5\u6b63\u5e38\u8fde\u63a5\u65b0\u7684 Primary \u8282\u70b9<\/h4>\n<p>\u5728\u591a\u7f51\u5361\u73af\u5883\u4e0b\uff0c\u5f53 Mgmtd Primary \u8282\u70b9\u6545\u969c\u5bfc\u81f4\u5207\u4e3b\u65f6\uff0c\u5bf9\u4e8e\u65b0\u9009\u4e3e\u7684 Mgmtd Primary \u8282\u70b9\uff0c\u5176\u4f59\u7ec4\u4ef6\u59cb\u7ec8\u65e0\u6cd5\u6b63\u5e38\u8fde\u63a5\u5230\u65b0\u7684 Mgmtd Primary \u8282\u70b9\uff0c\u5bfc\u81f4\u6574\u4e2a\u96c6\u7fa4\u5904\u4e8e\u4e0d\u53ef\u7528\u72b6\u6001\u3002<br \/>\u7ecf\u8fc7\u5b9a\u4f4d\uff0c\u6211\u4eec\u53d1\u73b0\u5728 Mgmtd \u5207\u4e3b\u540e\uff0c\u5176\u4f59\u7ec4\u4ef6\u4f1a\u5c1d\u8bd5\u5bf9\u65e7Primary\u8282\u70b9\u7684\u591a\u4e2a\u7f51\u5361\u8fdb\u884c\u63a2\u6d4b\uff0c\u4f46\u4ec5\u4f1a\u91cd\u8bd5\u4e00\u6b21\uff0c\u5bfc\u81f4\u9677\u5165\u5bf9\u65e7 Primary \u63a2\u6d4b\u7684\u5faa\u73af\uff0c\u59cb\u7ec8\u65e0\u6cd5\u65e0\u6cd5\u63a2\u6d4b\u65b0\u7684 Mgmtd Primary\u3002\u57fa\u4e8e\u4e0a\u8ff0\u5206\u6790\uff0c\u6211\u4eec\u589e\u52a0\u4e86\u91cd\u8bd5\u548c\u63a2\u6d4b\u673a\u5236\uff0c\u4f7f\u5f97\u5176\u4ed6\u7ec4\u4ef6\u80fd\u6b63\u5e38\u63a2\u6d4b\u5230\u65b0\u7684 Primary \u8282\u70b9\uff0c\u4fdd\u8bc1\u4e86\u96c6\u7fa4\u7684\u53ef\u7528\u6027\u3002<\/p>\n<h4>\uff085\uff09\u8282\u70b9\u6545\u969c\u65f6 IO \u5f52\u96f6<\/h4>\n<p>\u591a\u526f\u672c\u60c5\u51b5\u4e0b\uff0c\u5355\u4e2a Storage \u8282\u70b9\u6545\u969c\u540e\uff0c\u51fa\u73b0 I\/O \u5f52\u96f6 60s\uff0c\u6700\u540e\u51fa\u73b0\u51fa\u73b0 I\/O ERROR\uff1bI\/O\u7684\u5199\u5165\u662f\u6309\u7167 Target \u987a\u5e8f\u9010\u6b21\u5199\u5165 Storage\uff0c\u5199\u5b8c\u6240\u6709\u8fd4\u56de\u6210\u529f\uff0c\u5982\u679c\u67d0\u4e2a Storage \u8282\u70b9\u53d1\u751f\u6545\u969c\uff0c\u5219\u4f1a\u4e0d\u505c\u91cd\u8bd5\uff0c\u6b64\u65f6 I\/O \u5f52\u96f6\uff0c\u5f53\u8fbe\u5230\u91cd\u8bd5\u4e0a\u9650\u65f6\uff0c\u5219\u4f1a\u4e0a\u62a5 I\/O ERROR\uff1b<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486339\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe9 \u63a2\u6d3bstorage<br \/>Fuse \u53d1\u73b0\u5355\u4e2a I\/O \u8d85\u65f6\u540e\uff0c\u5411 Mgmtd \u53d1\u8d77\u63a2\u6d4b\u8bf7\u6c42\uff0cMgmtd \u5c06\u5bf9\u6545\u969c\u7684 Storage \u8282\u70b9\u8fdb\u884c\u5b58\u6d3b\u63a2\u6d4b\u3002\u5982\u679c\u786e\u8ba4 Storage \u8282\u70b9\u5df2\u5931\u6d3b\uff0c\u5219\u4fee\u6539Mgmtd\u4e2d\u7f13\u5b58\u7684\u8def\u7531\u4fe1\u606f\uff0c\u628a\u5931\u6d3b Storage \u5bf9\u5e94\u7684 Target \u72b6\u6001\u66f4\u65b0\u4e3a OFFLINE\uff0c\u5e76\u5c06\u5176\u6301\u4e45\u5316\u81f3 FDB \u4e2d\u3002\u4e4b\u540e\u5c06\u66f4\u65b0\u7684\u8def\u7531\u4fe1\u606f\u4ee5\u5e7f\u64ad\u7684\u65b9\u5f0f\u63a8\u9001\u7ed9\u5404\u4e2a\u8282\u70b9\uff0c\u5e76\u628a\u63a2\u6d4b\u7ed3\u679c\u8fd4\u56de\u81f3 Fuse\uff0cFuse \u5c06\u6839\u636e\u4fee\u590d\u540e\u7684 I\/O \u8def\u5f84\u8fdb\u884c I\/O \u91cd\u8bd5\u3002<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486340\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe10 \u6545\u969c\u4fee\u590d\u540eI\/O\u8def\u5f84<\/p>\n<h4>\uff086\uff09GPU Direct RDMA\uff08GDR\uff09\u4f7f\u80fd<\/h4>\n<p>KVCache \u6570\u636e\u4f1a\u5728\u8ba1\u7b97\u5b8c\u6210\u540e\u7f13\u5b58\u5728 HBM \u4e2d\uff0c\u5c06 KVCache \u6570\u636e\u5199\u5165 3FS \u9700\u8981\u5148\u5c06 HBM \u4e2d\u7684\u6570\u636e\u62f7\u8d1d\u5230\u5185\u5b58\u4e2d\uff0c\u7136\u540e\u518d\u8c03\u7528 USRBIO \u6216\u8005 POSIX \u63a5\u53e3\u5c06\u6570\u636e\u5199\u5165 3FS \u4e2d\u3002HBM \u5230\u5185\u5b58\u7684\u62f7\u8d1d\u5f80\u5f80\u4f1a\u6210\u4e3a\u94fe\u8def\u4e0a\u7684\u74f6\u9888\uff0c\u9700\u8981\u5c06\u5185\u5b58 pin \u4f4f\u548c\u4f7f\u7528\u4e13\u7528 kernel \u6765\u89e3\u51b3\uff0c\u8fd9\u65e0\u7591\u4ea7\u751f\u4e86 GPU \u548c CPU \u7684\u989d\u5916\u5f00\u9500\u3002<br \/>\u56e0\u6b64\uff0c\u6211\u4eec\u57283FS USRBIO\u63a5\u53e3\u4e2d\u4f7f\u80fd\u4e86 3FS \u7684 GDR \u80fd\u529b\uff0c\u6d88\u9664\u4e86\u591a\u4f59\u7684\u5185\u5b58\u62f7\u8d1d\uff0c\u964d\u4f4e\u4e86 GPU \u548cCPU \u7684\u5f00\u9500\u3002\u5982\u4e0a\u6240\u8ff0\uff0c\u4f7f\u7528 3FS USRBIO \u7684\u7528\u6237\u8fdb\u7a0b\u4f1a\u548c 3FS Fuse Daemon \u5171\u4eab\u4e24\u4e2a\u5185\u5b58\u6587\u4ef6\uff0ciov\u548cior\u3002\u5176\u4e2d\uff0ciov \u7528\u4e8e\u4fdd\u5b58\u6570\u636e\u5757\uff0cior \u7528\u4e8e\u4fdd\u5b58\u547d\u4ee4\u5757\u3002\u6211\u4eec\u5c06 iov \u4e2d\u4fdd\u5b58\u7684\u6570\u636e\u5757\u7531\u771f\u5b9e\u7684\u6570\u636e\u4fee\u6539\u4e3aHBM \u7684 IPC \u5730\u5740\uff0c\u4ece\u800c\u4f7f\u5f97 3FS Fuse Daemon \u4e5f\u53ef\u4ee5\u8bfb\u5199\u540c\u4e00\u5757 HBM \u7269\u7406\u5730\u5740\u3002<br \/>\u53e6\u5916\uff0c\u7531\u4e8e IBVerbs \u63a5\u53e3\u7684\u9650\u5236\uff0c\u6211\u4eec\u8fd8\u9700\u8981\u5c06\u7528\u6237\u8fdb\u7a0b\u4fa7\u7684 PD \u548c MR \u7b49 IB Context \u4e5f\u5171\u4eab\u7ed9 3FS Fuse Daemon\uff0c\u6574\u4f53\u5b9e\u73b0\u4e86 3FS GDR \u80fd\u529b\u7684\u652f\u6301\u3002<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486341\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe11 3FS GDR\u6570\u636e\u4ea4\u4e92\u8bbe\u8ba1<\/p>\n<h4>\uff087\uff09\u591a\u79df\u9694\u79bb<\/h4>\n<p>\u63d0\u4f9b\u79df\u6237\u6743\u9650\u7ba1\u7406\u80fd\u529b\uff0c\u652f\u6301\u8bbf\u95ee\u63a7\u5236\u9694\u79bb\uff0c\u79df\u6237\u4ec5\u53ef\u8bbf\u95ee\/\u663e\u793a\/\u4fee\u6539\u672c\u79df\u6237\u6587\u4ef6\uff0cMeta \u548c I\/O \u8bbf\u95ee\u8def\u5f84\u589e\u52a0\u79df\u6237\u8bbf\u95ee\u9274\u6743\uff0c\u7981\u6b62\u975e\u6cd5\u8bbf\u95ee\u3002<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486342\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe12 3FS \u591a\u79df\u9694\u79bb<\/p>\n<h3>2.3 \u4e91\u539f\u751f\u5316\u96c6\u7fa4\u7ba1\u7406<\/h3>\n<p>3FS \u5f00\u6e90\u540e\u53d7\u5230\u4e1a\u754c\u5e7f\u6cdb\u5173\u6ce8\uff0c\u5176\u4f18\u8d8a\u7684\u6027\u80fd\u548c\u9ad8\u53ef\u7528\u6027\u5438\u5f15\u4e86\u5927\u91cf AI \u521d\u521b\u4f01\u4e1a\u7684\u773c\u5149\u3002\u4f46\u662f 3FS \u7531\u591a\u4e2a\u5173\u952e\u7ec4\u4ef6\u6784\u6210\uff0c\u7ec4\u4ef6\u4e4b\u95f4\u4f9d\u8d56\u5173\u7cfb\u590d\u6742\uff0c\u4f20\u7edf\u90e8\u7f72\u65b9\u5f0f\u9700\u8981\u624b\u52a8\u914d\u7f6e\u5404\u7ec4\u4ef6\u72b6\u6001\u3001\u534f\u8c03\u7ec4\u4ef6\u901a\u4fe1\uff0c\u6545\u969c\u573a\u666f\u9ad8\u5ea6\u4f9d\u8d56\u4eba\u5de5\u5e72\u9884\u8fdb\u884c\u6062\u590d\uff0c\u5bfc\u81f4\u90e8\u7f72\u6d41\u7a0b\u590d\u6742\u3001\u7ef4\u62a4\u6210\u672c\u9ad8\u3001\u7cfb\u7edf\u7a33\u5b9a\u6027\u96be\u4ee5\u4fdd\u969c\u3002\u5982\u4f55\u5e2e\u52a9\u8fd9\u4e9b\u4f01\u4e1a\u66f4\u9ad8\u6548\u5730\u90e8\u7f72\u3001\u7ba1\u7406\u548c\u7ef4\u62a4 3FS\uff0c\u662f\u6211\u4eec\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u7684\u6838\u5fc3\u8003\u91cf\u3002<br \/>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\uff0c\u6211\u4eec\u5f00\u6e90\u4e86kvc-3fs-operator (<a href=\"https:\/\/link.segmentfault.com\/?enc=rvKE3LJX1TOppthSjGwL6Q%3D%3D.gm48Y%2Fgrc1IlxVgxkxCQxrfBLYijQAsfz%2F2%2B5hxUl9USTWa8gT9lB%2BysAhOiBQd2\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">https:\/\/github.com\/aliyun\/kvc-3fs-operator<\/a>) \u9879\u76ee\uff0c\u652f\u6301\u5ba2\u6237\u7269\u7406\u673a\u81ea\u5efa K8s\u96c6\u7fa4\/\u963f\u91cc\u4e91ACK\/ASI \u7b49\u591a\u79cd\u73af\u5883\u7684\u7075\u6d3b\u90e8\u7f72\u30023FS Operator \u57fa\u4e8e Kubernetes \u5bb9\u5668\u7f16\u6392\u7cfb\u7edf\uff0c\u63d0\u4f9b\u58f0\u660e\u5f0fAPI\u548c\u81ea\u52a8\u5316\u8fd0\u7ef4\u80fd\u529b\uff0c\u5b9e\u73b0\u4e86 3FS \u7684\u4e00\u952e\u90e8\u7f72\u3001\u6545\u969c\u81ea\u6108\u7b49\u80fd\u529b\uff0c\u663e\u8457\u63d0\u5347\u4e86\u90e8\u7f72\u6548\u7387\u548c\u7cfb\u7edf\u7a33\u5b9a\u6027\u3002<\/p>\n<h4>\uff081\uff09\u652f\u6301\u96c6\u7fa4\u4e00\u952e\u5feb\u901f\u62c9\u8d77\u80fd\u529b\uff0c\u5305\u62ec Clickhouse\/Monitor\/FDB\/Meta\/Mgmtd\/Storage \u7ec4\u4ef6<\/h4>\n<p>Kubernetes Operator \u662f\u57fa\u4e8e Kubernetes \u7684\u4e00\u79cd\u6269\u5c55\u6a21\u5f0f\uff0c\u901a\u8fc7\u7ed3\u5408\u81ea\u5b9a\u4e49\u8d44\u6e90\u5b9a\u4e49\uff08CRD\uff09\u4e0e\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\uff08Controller\uff09\uff0c\u5b9e\u73b0\u4e86\u5bf9\u590d\u6742\u5e94\u7528\u7cfb\u7edf\u7684\u81ea\u52a8\u5316\u90e8\u7f72\u4e0e\u751f\u547d\u5468\u671f\u7ba1\u7406\u3002<br \/>\u5728 3FS Operator \u4e2d\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a ThreeFsCluster \u7684 CRD \u8d44\u6e90\uff0c\u7528\u4e8e\u63cf\u8ff0 3FS \u96c6\u7fa4\u7684\u914d\u7f6e\u548c\u671f\u671b\u72b6\u6001\u3002Operator \u901a\u8fc7\u76d1\u542c\u8be5 CRD \u7684\u53d8\u66f4\u4e8b\u4ef6\uff0c\u9a71\u52a8\u63a7\u5236\u5faa\u73af\uff08Reconcile Loop\uff09\uff0c\u6301\u7eed\u5bf9\u6bd4\u5f53\u524d\u96c6\u7fa4\u72b6\u6001\u4e0e\u76ee\u6807\u72b6\u6001\u4e4b\u95f4\u7684\u5dee\u5f02\uff0c\u5e76\u81ea\u52a8\u6267\u884c\u76f8\u5e94\u7684\u64cd\u4f5c\uff08\u5982\u521b\u5efaWorkload\u3001\u8c03\u6574\u914d\u7f6e\u3001\u5904\u7406\u6545\u969c\u7b49\uff09\uff0c\u4ee5\u786e\u4fdd\u7cfb\u7edf\u59cb\u7ec8\u8fd0\u884c\u5728\u7528\u6237\u6240\u671f\u671b\u7684\u72b6\u6001\u4e0b\u3002<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486343\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe13 3FS Operator\u539f\u7406<\/p>\n<h4>\uff082\uff09\u57fa\u4e8e Webhook \u673a\u5236\uff0c\u5b9e\u73b0 Fuse Sidecar \u52a8\u6001\u6ce8\u5165\u4e1a\u52a1 Pod\uff0c\u5bf9\u7528\u6237\u5b8c\u5168\u900f\u660e<\/h4>\n<p>Kubernetes Webhook \u662f\u4e00\u79cd\u901a\u8fc7 HTTP \u63a5\u53e3\u4e0e Kubernetes ApiServer \u4ea4\u4e92\u7684\u673a\u5236\uff0c\u5141\u8bb8\u7528\u6237\u5728\u96c6\u7fa4\u4e2d\u5b9e\u73b0\u81ea\u5b9a\u4e49\u7684\u51c6\u5165\u63a7\u5236\uff08Admission Control\uff09\u6216\u5176\u4ed6\u81ea\u52a8\u5316\u64cd\u4f5c\u3002<br \/>\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u5728 3FS Operator \u4e2d\u6ce8\u518c\u4e86\u4e00\u4e2a Mutating Admission Webhook\uff08\u53d8\u66f4\u578b\uff09 \u670d\u52a1\u3002\u5f53\u7528\u6237\u521b\u5efa\u5e26\u6709\u6307\u5b9a\u6807\u7b7e\u7684 Pod \u65f6\uff0c\u8be5 Webhook \u4f1a\u88ab\u89e6\u53d1\u4f5c\u4e3a Hook \u8c03\u7528\uff0c\u81ea\u52a8\u5411 Pod \u6ce8\u5165\u4e00\u4e2a 3FS Fuse \u5bb9\u5668\u4f5c\u4e3a Sidecar\u3002<br \/>\u540c\u65f6\uff0c\u57fa\u4e8e\u5bb9\u5668\u6302\u8f7d\u5377\u7684\u53cc\u5411\u4f20\u64ad\u673a\u5236\uff0cSidecar \u5bb9\u5668\u4e2d\u7684 3FS \u6302\u8f7d\u8def\u5f84\u4f1a\u88ab\u4f20\u64ad\u5230\u4e1a\u52a1\u5bb9\u5668\u4e2d\u3002\u6574\u4e2a\u6ce8\u5165\u548c\u6302\u8f7d\u8fc7\u7a0b\u5bf9\u7528\u6237\u5b8c\u5168\u900f\u660e\u3002Pod \u542f\u52a8\u540e\uff0c\u7528\u6237\u5373\u53ef\u5728\u5176\u914d\u7f6e\u7684\u76ee\u5f55\u4e2d\u76f4\u63a5\u4f7f\u7528 3FS \u5b58\u50a8\uff0c\u65e0\u9700\u989d\u5916\u914d\u7f6e\u6216\u4fee\u6539\u5e94\u7528\u4ee3\u7801\u3002<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486344\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe14 3FS Fuse\u52a8\u6001\u6ce8\u5165\u539f\u7406<\/p>\n<h4>\uff083\uff09FDB\/Mgmtd\/Meta\/Storage\u6545\u969c\u81ea\u6108\u80fd\u529b<\/h4>\n<p>3FS Operator \u4f1a\u6301\u7eed\u76d1\u63a7\u5404\u7ec4\u4ef6\u7684\u72b6\u6001\u4fe1\u606f\u3002\u5f53\u68c0\u6d4b\u5230\u67d0\u4e2a\u7ec4\u4ef6\u53d1\u751f\u6545\u969c\u65f6\uff0c\u4f1a\u8bb0\u5f55\u5176\u9996\u6b21\u6545\u969c\u65f6\u95f4\uff0c\u5e76\u5728\u6545\u969c\u6301\u7eed\u65f6\u95f4\u8fbe\u5230\u7528\u6237\u9884\u8bbe\u7684\u9608\u503c\u540e\uff0c\u5224\u5b9a\u8be5\u7ec4\u4ef6\u5931\u6548\u3002\u6b64\u65f6\uff0cOperator \u5c06\u542f\u52a8\u4e00\u4e2a\u65b0\u7684\u526f\u672c\u66ff\u6362\u6545\u969c\u526f\u672c\uff0c\u5b9e\u73b0\u7cfb\u7edf\u7684\u81ea\u52a8\u6062\u590d\u548c\u9ad8\u53ef\u7528\u4fdd\u969c\u3002<\/p>\n<h4>\uff084\uff09\u96c6\u7fa4\u5b58\u50a8\u5f39\u6027\u6269\u5bb9\u80fd\u529b<\/h4>\n<p>3FS Operator \u652f\u6301\u5b58\u50a8\u5f39\u6027\u6269\u5bb9\u80fd\u529b\uff0c\u5141\u8bb8\u7528\u6237\u6839\u636e\u4e1a\u52a1\u8d1f\u8f7d\u53d8\u5316\uff0c\u6309\u9700\u5b9a\u4e49\u6269\u5bb9\u6b65\u957f\u5e76\u52a8\u6001\u6269\u5c55\u5b58\u50a8\u5bb9\u91cf\u3002\u7ed3\u5408\u6211\u4eec\u5bf9 3FS \u6587\u4ef6\u521b\u5efa\u65f6\u6570\u636e\u5206\u5e03\u89c4\u5219\u7684\u4f18\u5316\u6539\u9020\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5c06\u6570\u636e\u5747\u8861\u5206\u5e03\u81f3\u65b0\u52a0\u5165\u7684\u8282\u70b9\u4e0a\u3002<\/p>\n<h4>\uff085\uff09\u96c6\u7fa4\u6eda\u52a8\u5347\u7ea7<\/h4>\n<p>\u901a\u8fc7\u66f4\u65b0\u5404\u7ec4\u4ef6\u7684\u955c\u50cf\u4fe1\u606f\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5bf9 3FS \u96c6\u7fa4\u7684\u6eda\u52a8\u5347\u7ea7\u3002Operator \u6309\u7167\u7ec4\u4ef6\u7ef4\u5ea6\uff0c\u4ee5\u5355\u4e2a\u8fdb\u7a0b\u4e3a\u7c92\u5ea6\u9010\u6b65\u66ff\u6362\u65e7\u7248\u672c\u955c\u50cf\uff0c\u786e\u4fdd\u5728\u5347\u7ea7\u8fc7\u7a0b\u4e2d\u59cb\u7ec8\u4fdd\u7559\u8db3\u591f\u7684\u53ef\u7528\u526f\u672c\u3002\u8fd9\u79cd\u65b9\u5f0f\u6709\u6548\u964d\u4f4e\u4e86\u5347\u7ea7\u8fc7\u7a0b\u5bf9\u96c6\u7fa4\u6574\u4f53\u53ef\u7528\u6027\u7684\u5f71\u54cd\uff0c\u63d0\u5347\u4e86\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u548c\u8fd0\u7ef4\u6548\u7387\u3002<\/p>\n<h4>\uff086\uff09\u591a\u5b9e\u4f8b\u652f\u6301<\/h4>\n<p>\u652f\u6301\u5728\u540c\u4e00 Kubernetes \u96c6\u7fa4\u4e2d\u90e8\u7f72\u591a\u5957 3FS \u96c6\u7fa4\uff0c\u7ed3\u5408\u963f\u91cc\u4e91\u7f51\u7edc\u9694\u79bb\u80fd\u529b\uff08\u5982 VPC \u5b50\u7f51\u5212\u5206\u3001\u5b89\u5168\u7ec4\u7b56\u7565\u7b49\uff09\u5b9e\u73b0\u96c6\u7fa4\u95f4\u9694\u79bb\uff0c\u63d0\u5347\u8d44\u6e90\u5229\u7528\u7387\u5e76\u964d\u4f4e\u57fa\u7840\u8bbe\u65bd\u6210\u672c\uff0c\u786e\u4fdd\u4e0d\u540c\u4e1a\u52a1\u573a\u666f\u4e0b\u7684\u6570\u636e\u5b89\u5168\u6027\u4e0e\u670d\u52a1\u9694\u79bb\u6027\u3002\u7cfb\u7edf\u9884\u7f6e\u4e8c\u7ea7\u5907\u7528\u8282\u70b9\u6c60\uff0c\u53ef\u52a8\u6001\u652f\u6301\u6545\u969c\u66ff\u6362\u53ca\u6269\u5bb9\u9700\u6c42\uff0c\u4fdd\u969c\u670d\u52a1\u7684\u9ad8\u53ef\u7528\u6027\u3002\u6b64\u5916\uff0c\u7528\u6237\u53ef\u901a\u8fc7 ECS\u3001ACK\u3001ASI \u7b49\u73af\u5883\u81ea\u52a8\u5316\u90e8\u7f72 3FS \u5ba2\u6237\u7aef\uff0c\u5b9e\u73b0\u8de8\u96c6\u7fa4\u6570\u636e\u8bbf\u95ee\u4e0e\u8d44\u6e90\u8c03\u5ea6\u3002<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486345\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe15 3FS \u591a\u5b9e\u4f8b\u90e8\u7f72\u5f62\u6001<\/p>\n<h4>\uff087\uff09\u76d1\u63a7\u5927\u76d8\u63a5\u5165<\/h4>\n<p>3FS \u91c7\u7528\u00a0ClickHouse\u00a0\u4f5c\u4e3a\u65f6\u5e8f\u6570\u636e\u5e93\uff0c\u5b58\u50a8\u91c7\u96c6\u7684\u76d1\u63a7\u6307\u6807\u3002\u901a\u8fc7 Grafana \u7684 ClickHouse \u63d2\u4ef6\uff0c\u6211\u4eec\u6784\u5efa\u4e86\u7edf\u4e00\u7684\u53ef\u89c6\u5316\u76d1\u63a7\u5927\u76d8\uff0c\u5b9e\u73b0\u5bf9\u7ba1\u63a7\u7ec4\u4ef6\u4e0e\u6570\u636e\u94fe\u8def\u7ec4\u4ef6\u7684\u5173\u952e\u6027\u80fd\u6307\u6807\u7684\u96c6\u4e2d\u5c55\u793a\uff0c\u57fa\u4e8eI\/O\u5206\u6bb5\u65f6\u5ef6\u9ad8\u6548\u5b9a\u4f4d\u7cfb\u7edf\u7684\u6027\u80fd\u74f6\u9888\u3002<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486346\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe16 3FS\u76d1\u63a7\u5927\u76d8<\/p>\n<h2>3. \u6784\u5efa\u9ad8\u6548 KVCache \u5b58\u50a8\u901a\u8def\uff1a3FS \u96c6\u6210\u5b9e\u8df5<\/h2>\n<h3>3.1 \u63a8\u7406\u5f15\u64ce\u96c6\u6210 3FS<\/h3>\n<h4>\uff081\uff093FS USRBIO\u6027\u80fd\u4f18\u5316<\/h4>\n<p>\u5728 SGLang \u4e0e 3FS USRBIO \u7684\u5bf9\u63a5\u9a8c\u8bc1\u9636\u6bb5\uff0c\u521d\u671f\u6d4b\u8bd5\u4e2d\u56e0\u5ba2\u6237\u7aef\u5e76\u53d1\u5ea6\u4e0d\u8db3\uff08\u5355\u7ebf\u7a0b\u8bf7\u6c42\uff09\u4e14 I\/O \u63d0\u4ea4\u7c92\u5ea6\u8f83\u5c0f\uff0c\u5bfc\u81f4\u8bfb\u5199\u5e26\u5bbd\u4ec5\u6709 ~200MB\/s\uff0c\u8fdc\u4f4e\u4e8e EGS \u73af\u5883 160Gb\/s \u7684\u5e26\u5bbd\u4e0a\u9650\u3002\u4e3a\u7a81\u7834\u8fd9\u4e00\u74f6\u9888\uff0c\u6211\u4eec\u91c7\u53d6\u4e86\u4ee5\u4e0b\u4f18\u5316\u7b56\u7565\uff1a<\/p>\n<ol>\n<li>\u591a\u7ebf\u7a0b\u5e76\u884c\u5316\u6539\u9020\uff1a\u63d0\u9ad8\u5ba2\u6237\u7aef\u5e76\u53d1\u6570\uff0c\u6bcf\u4e2a\u7ebf\u7a0b\u72ec\u7acb\u7ef4\u62a4\u79c1\u6709 IOR\/IOV\u7ed3\u6784\uff0c\u907f\u514d\u7ebf\u7a0b\u95f4\u7ade\u4e89\uff1b<\/li>\n<li>I\/O \u805a\u5408\u4f18\u5316\uff1a\u589e\u5927 Page Size \u805a\u5408 I\/O\uff0c\u540c\u65f6\u589e\u5927 I\/O \u961f\u5217\u6df1\u5ea6\uff0c\u901a\u8fc7\u6279\u91cf\u63d0\u4ea4\u673a\u5236\u63d0\u5347 RDMA \u7f51\u7edc\u5e26\u5bbd\u5229\u7528\u7387\uff1b<\/li>\n<\/ol>\n<p>\u7ecf\u8fc7\u4e0a\u8ff0\u4f18\u5316\uff0cSGlang \u7684\u8bfb\u5199\u5e26\u5bbd\u6210\u529f\u8fbe\u5230\u7f51\u7edc\u7406\u8bba\u4e0a\u9650 ~ 20GB\/s\uff0c\u8f83\u539f\u59cb\u65b9\u6848\u663e\u8457\u63d0\u5347\uff0c\u5145\u5206\u9a8c\u8bc1\u4e86 3FS USRBIO \u63a5\u5165\u65b9\u6848\u7684\u6280\u672f\u53ef\u884c\u6027\u548c\u6709\u6548\u6027\u3002<\/p>\n<h4>\uff082\uff093FS \u63a5\u5165 SGlang\/vLLM \u65b9\u6848<\/h4>\n<p>\u5f53\u524d\uff0c\u6211\u4eec\u5728 SGLang \u793e\u533a &#038; vLLM \u5b8c\u6210\u4e86 3FS KVStore \u7684\u96c6\u6210\uff0c\u5177\u4f53\u8bbe\u8ba1\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>3FS Hicache Backend &#038;&#038; V1 Connector\uff1a\u57fa\u4e8e 3FS \u7684\u5b58\u50a8\u540e\u7aef\u8fde\u63a5\u5668\uff0c\u4f9d\u6258 libusrbio \u9ad8\u6027\u80fd I\/O \u5e93\uff0c\u5b9e\u73b0\u5bf9 3FS \u5b58\u50a8\u7cfb\u7edf\u7684\u9ad8\u541e\u5410\u3001\u4f4e\u5ef6\u8fdf\u8bbf\u95ee<\/li>\n<li>Global Metadata Manager\uff1a\u63d0\u4f9b\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\uff08FS\uff09\u7684\u5143\u6570\u636e\u7edf\u4e00\u7ba1\u7406\u670d\u52a1\uff0c\u5177\u5907\u9ad8\u6548\u7684\u5143\u6570\u636e\u7ec4\u7ec7\u3001\u67e5\u8be2\u4e0e\u534f\u8c03\u80fd\u529b\uff0c\u4e3a\u5168\u5c40 KVCache \u63d0\u4f9b\u4e00\u81f4\u6027\u7ba1\u7406<\/li>\n<li>3FS Global Storage\uff1a3FS \u9ad8\u6027\u80fd\u5206\u5e03\u5f0f\u5b58\u50a8\u5f15\u64ce<\/li>\n<\/ul>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486347\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe17 \u63a8\u7406\u5f15\u64ce\u63a5\u51653FS\u793a\u610f\u56fe<\/p>\n<h4>\uff083\uff093FS \u63a5\u5165\u63a8\u7406\u6846\u67b6\u6027\u80fd\u8868\u73b0<\/h4>\n<p>\u6211\u4eec\u6d4b\u8bd5\u4e86 SGLang \u5728\u4e00\u4e2a\u957f\u4e0a\u4e0b\u6587 QA \u573a\u666f\u6570\u636e\u96c6\u7684\u6027\u80fd\u8868\u73b0\uff1a<\/p>\n<ul>\n<li>\u6570\u636e\u96c6\uff1aLoogle Dataset\uff0c\u5305\u542b\u8fd1 100 \u7ec4 system prompts\uff0c 21KB \u524d\u7f00\u300120 queries\/per group<\/li>\n<li>\u6d4b\u8bd5\u6a21\u578b\uff1aDeepSeek R1\uff0cH20-3e * 8\u5361<\/li>\n<li>\u6d4b\u8bd5\u573a\u666f\uff1al1\u3001l1 + l2 host\u3001l1 + l2 + l3 3fs\u30013fs \u51b7\u542f\u52a8\u52a0\u901f<\/li>\n<li>\n<p>\u6027\u80fd\u63d0\u5347\uff1a<\/p>\n<ul>\n<li>L3 Vs L1:  TTFT \u76f8\u6bd4 L1 \u4e0b\u964d 78%\uff0c\u63a8\u7406\u541e\u5410\u63d0\u5347 520%<\/li>\n<li>L3 \u52a9\u529b\u51b7\u542f\u52a8\uff1aTTFT \u76f8\u6bd4\u51b7\u542f\u52a8\u91cd\u7b97\u4e0b\u964d 84%\uff0c\u63a8\u7406\u541e\u5410\u76f8\u6bd4\u51b7\u542f\u52a8\u91cd\u7b97\u63d0\u5347 830%<\/li>\n<\/ul>\n<\/li>\n<li>\u8be6\u60c5\u53ef\u53c2\u8003\uff1a<a href=\"https:\/\/link.segmentfault.com\/?enc=6oBE0flMBBsR5kqPS2tRcw%3D%3D.gn0WfF%2BhaDIwS4BAIQLjzBNGgjo64eyP0GBufJMXnRK2NUxQyc6QkQj7LzONkBe2dSSaPnMG8Ra8iO2HCT9RCg%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">https:\/\/lmsys.org\/blog\/2025-09-10-sglang-hicache\/<\/a><\/li>\n<\/ul>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486348\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe18 SGlang\u63a5\u51653FS\u6027\u80fd\u6570\u636e<\/p>\n<h3>3.2 Tair KVCache Manager \u96c6\u6210 3FS<\/h3>\n<p>Tair KVCache Manager\uff08\u4ee5\u4e0b\u7b80\u79f0 KVCM\uff09\u662f\u963f\u91cc\u7814\u53d1\u7684\u5168\u5c40\u5916\u90e8 KVCache \u7ba1\u7406\u7ec4\u4ef6\uff0c\u65e8\u5728\u4e3a\u63a8\u7406\u670d\u52a1\u63d0\u4f9b\u9ad8\u6548\u3001\u53ef\u9760\u7684 KVCache \u7ba1\u7406\u670d\u52a1\u3002<br \/>KVCM \u57fa\u4e8e HTTP\/gRPC \u534f\u8bae\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\u63a5\u53e3\uff0c\u652f\u6301\u63a5\u5165\u5305\u62ec 3FS \u5728\u5185\u7684\u591a\u79cd\u5b58\u50a8\u7cfb\u7edf\uff08\u5982 KV \u5b58\u50a8\u3001\u6587\u4ef6\u7cfb\u7edf\u3001\u5185\u5b58\u6c60\u3001\u5757\u5b58\u50a8\u7b49\uff09\uff0c\u5e76\u901a\u8fc7\u7edf\u4e00\u7684\u63a5\u53e3\u5c42\u5bf9\u5f02\u6784\u5b58\u50a8\u7cfb\u7edf\u8fdb\u884c\u62bd\u8c61\u548c\u5c01\u88c5\uff0c\u663e\u8457\u964d\u4f4e\u4e86\u4e0d\u540c\u5b58\u50a8\u4ecb\u8d28\u63a5\u5165\u7684\u590d\u6742\u5ea6\u4e0e\u5f00\u53d1\u6210\u672c\u3002<br \/>KVCM \u5728\u7cfb\u7edf\u67b6\u6784\u4e2d\u626e\u6f14\u5173\u952e\u89d2\u8272\uff0c\u5176\u4e0e\u63a8\u7406\u670d\u52a1\u30013FS \u7b49\u7ec4\u4ef6\u7684\u4ea4\u4e92\u5173\u7cfb\u5982\u4e0b\u56fe\u6240\u793a\uff0cKVCM \u5b9e\u73b0\u4e86 KVCache \u4e0e 3FS \u6587\u4ef6\u6570\u636e\u7269\u7406\u4f4d\u7f6e\u7684\u52a8\u6001\u6620\u5c04\uff0c\u63a8\u7406\u670d\u52a1\u901a\u8fc7 KVCM \u7684\u7edf\u4e00\u63a5\u53e3\u8bbf\u95ee KVCache \u6570\u636e\u7684\u5b58\u653e\u4f4d\u7f6e\u5e76\u901a\u8fc7\u6302\u8f7d\u7684 3FS Fuse \u670d\u52a1\u8bbf\u95ee\u6570\u636e\uff0c\u51cf\u5c11\u5176\u76f4\u63a5\u7ba1\u7406\u5e95\u5c42\u5b58\u50a8\u7cfb\u7edf\u7684\u590d\u6742\u6027\u3002<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486349\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe19 KVCM\u63a5\u51653FS\u793a\u610f\u56fe<br \/>\u5728 KVCM \u4e0e 3FS Backend \u7684\u5bf9\u63a5\u4e2d\uff0cKVCM \u5bf9 3FS \u6587\u4ef6\u7684\u64cd\u4f5c\u4f9d\u8d56\u4e8e 3FS Fuse \u7684\u6302\u8f7d\uff0c\u4e14\u5f3a\u4f9d\u8d56 RDMA \u73af\u5883\u3002\u7136\u800c\uff0c\u5728\u8de8\u96c6\u7fa4\u90e8\u7f72\u573a\u666f\u4e0b\uff0c\u8fd9\u79cd\u5f3a\u8026\u5408\u5173\u7cfb\u663e\u8457\u9650\u5236\u4e86 KVCM \u90e8\u7f72\u7684\u7075\u6d3b\u6027\u548c\u6269\u5c55\u6027\u3002\u4e0e\u6b64\u540c\u65f6\uff0c\u4f20\u7edf\u57fa\u4e8e\u6d77\u91cf\u5c0f\u6587\u4ef6\u7684\u5206\u914d\u65b9\u5f0f\u867d\u6613\u4e8e\u5b9e\u73b0\uff0c\u4f46\u9891\u7e41\u7684\u5143\u6570\u636e\u64cd\u4f5c\u5bfc\u81f4\u540e\u7aef\u5143\u6570\u636e\u670d\u52a1\u8bbf\u95ee\u538b\u529b\u52a0\u5927\uff0c\u8fdb\u800c\u5f15\u53d1\u7cfb\u7edf\u541e\u5410\u80fd\u529b\u4e0b\u964d\u4e0e\u6027\u80fd\u74f6\u9888\u3002\u4e3a\u6b64\uff0c\u6211\u4eec\u9488\u5bf9\u4e0a\u8ff0\u6311\u6218\u63d0\u51fa\u4e86\u4ee5\u4e0b\u4f18\u5316\u65b9\u6848\uff1a<\/p>\n<h4>\uff081\uff09KVCM \u4e0e 3FS Fuse \u89e3\u8026\u8bbe\u8ba1<\/h4>\n<p>\u4e3a\u63d0\u5347 KVCM \u5728\u975e RDMA \u73af\u5883\u4e2d\u90e8\u7f72\u7684\u7075\u6d3b\u6027\uff0c\u6211\u4eec\u5728 3FS Operator \u4e2d\u5f15\u5165\u4e86\u8f7b\u91cf\u7ea7\u7684\u00a03FS Master \u7ec4\u4ef6\u3002\u8be5\u7ec4\u4ef6\u662f\u65e0\u72b6\u6001\u670d\u52a1\uff0c\u91c7\u7528\u591a\u5b9e\u4f8b\u90e8\u7f72\u6a21\u5f0f\uff0c\u901a\u8fc7 HTTP \u63a5\u53e3\u5bf9\u5916\u63d0\u4f9b POSIX \u517c\u5bb9\u7684 create\/delete \u7b49\u57fa\u7840\u8bed\u4e49\uff0c\u6709\u6548\u89e3\u8026\u4e86 KVCM \u4e0e 3FS Fuse \u7684\u4f9d\u8d56\u5173\u7cfb\u3002<\/p>\n<h4>\uff082\uff093FS \u5143\u6570\u636e\u4f18\u5316\u7b56\u7565<\/h4>\n<p>\u4e3a\u964d\u4f4e 3FS \u5143\u6570\u636e\u64cd\u4f5c\u7684\u5f00\u9500\uff0c\u6211\u4eec\u91c7\u7528\u5927\u6587\u4ef6 + \u652f\u6301\u591a\u79cd Block Size \u7684 Slab \u7ec6\u7c92\u5ea6\u5206\u914d\u5668\u7b56\u7565\uff1a\u5ba2\u6237\u7aef\u4ec5\u9700\u6253\u5f00\u5c11\u91cf\u5927\u6587\u4ef6\u5e76\u7f13\u5b58\u6587\u4ef6\u4fe1\u606f\uff0c\u907f\u514d\u9891\u7e41\u8bbf\u95ee\u540e\u7aef\u5b58\u50a8\u7684\u5143\u6570\u636e\u670d\u52a1\uff1b\u901a\u8fc7 Slab \u5206\u914d\u5668\u5b9e\u73b0\u7ec6\u7c92\u5ea6\u5185\u5b58\u7ba1\u7406\uff0c\u51cf\u5c11\u6587\u4ef6\u521b\u5efa\/\u5220\u9664\u64cd\u4f5c\u7684\u9891\u7387\uff0c\u964d\u4f4e\u5bf9\u540e\u7aef\u5b58\u50a8\u5143\u6570\u636e\u670d\u52a1\u7684\u538b\u529b\uff0c\u63d0\u5347\u7cfb\u7edf\u6574\u4f53\u541e\u5410\u80fd\u529b\u3002<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486350\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe20 KVCM 3FS Allocator\u8bbe\u8ba1<br \/>\u5173\u4e8e KVCM \u7684\u66f4\u591a\u8bbe\u8ba1\u7ec6\u8282\u3001\u4f7f\u7528\u573a\u666f\u53ca\u914d\u7f6e\u6307\u5357\uff0c\u5c06\u5728\u540e\u7eed\u6280\u672f\u6587\u7ae0\u4e2d\u8be6\u7ec6\u5c55\u5f00\u3002<\/p>\n<h2>4. Future Work<\/h2>\n<h3>4.1 3FS\u4ea7\u54c1\u5316\u80fd\u529b\u6301\u7eed\u5efa\u8bbe<\/h3>\n<p>\u5c55\u671b\u672a\u6765\uff0c3FS \u5c06\u59cb\u7ec8\u4ee5 KVCache \u4e3a\u6838\u5fc3\u7684\u9ad8\u6027\u80fd\u5b58\u50a8\u9700\u6c42\u4e3a\u5bfc\u5411\uff0c\u5728\u591a\u4e2a\u6280\u672f\u7ef4\u5ea6\u6301\u7eed\u6df1\u5316\u521b\u65b0\u3002\u7cfb\u7edf\u5c06\u4ece\u667a\u80fd\u5316\u8fd0\u7ef4\u7ba1\u7406\u3001\u4f01\u4e1a\u7ea7\u591a\u79df\u6237\u5b89\u5168\u3001KV\u8bed\u4e49\u539f\u751f\u652f\u6301\u3001\u6781\u81f4\u9ad8\u53ef\u7528\u4fdd\u969c\u4ee5\u53ca\u8f6f\u786c\u534f\u540c\u4f18\u5316\u7b49\u5173\u952e\u9886\u57df\u5165\u624b\uff0c\u6784\u5efa\u4e13\u4e3a KVCache \u573a\u666f\u91cf\u8eab\u5b9a\u5236\u7684\u6280\u672f\u4f53\u7cfb\u3002<br \/>\uff081\uff09<strong>\u6301\u7eed\u589e\u5f3a 3FS Operator \u7684 CRD \u914d\u7f6e\u80fd\u529b\u4e0e\u90e8\u7f72\u7075\u6d3b\u6027<\/strong>\uff1a\u901a\u8fc7\u589e\u5f3a 3FS Operator \u7684\u81ea\u5b9a\u4e49\u8d44\u6e90\u5b9a\u4e49\u7684\u914d\u7f6e\u80fd\u529b\uff0c\u7cfb\u7edf\u5c06\u5177\u5907\u66f4\u4e3a\u7cbe\u7ec6\u5316\u7684\u8d44\u6e90\u914d\u7f6e\u548c\u7ba1\u7406\u529f\u80fd\uff0c\u80fd\u591f\u6839\u636e\u4e0d\u540c\u7684\u4e1a\u52a1\u8d1f\u8f7d\u7279\u5f81\u548c\u6027\u80fd\u8981\u6c42\u8fdb\u884c\u667a\u80fd\u5316\u8c03\u6574\u3002\u540c\u65f6\uff0c\u6269\u5c55 3FS Operator \u7684\u80fd\u529b\u8fb9\u754c\uff0c\u4f7f\u5176\u80fd\u591f\u5728\u66f4\u4e30\u5bcc\u7684\u4e1a\u52a1\u573a\u666f\u4e2d\u66f4\u7075\u6d3b\u5730\u652f\u6301\u5ba2\u6237\u81ea\u5b9a\u4e49\u90e8\u7f72\u9700\u6c42\u3002<br \/>\uff082\uff09<strong>QoS<\/strong>\uff1a\u6784\u5efa\u5b8c\u5584\u7684\u591a\u79df\u6237\u652f\u6301\u4f53\u7cfb\uff0c\u7ed3\u5408\u73b0\u6709\u7684\u7528\u6237\u9274\u6743\u673a\u5236\uff0c\u5f15\u5165 QoS \u4fdd\u969c\u673a\u5236\uff0c\u80fd\u591f\u6839\u636e\u79df\u6237\u7684\u4e1a\u52a1\u4f18\u5148\u7ea7\u548c\u8d44\u6e90\u914d\u989d\u8fdb\u884c\u52a8\u6001\u8d44\u6e90\u8c03\u5ea6\u548c\u6027\u80fd\u4fdd\u969c\uff0c\u907f\u514d\u79df\u6237\u95f4\u7684\u8d44\u6e90\u4e89\u7528\u548c\u6027\u80fd\u5e72\u6270\uff0c\u4e3a\u4e91\u539f\u751f\u73af\u5883\u4e0b\u7684\u5171\u4eab\u5b58\u50a8\u9700\u6c42\u63d0\u4f9b\u4f01\u4e1a\u7ea7\u7684\u5b89\u5168\u6027\u548c\u7a33\u5b9a\u6027\u4fdd\u969c\u3002<br \/>\uff083\uff09<strong>\u5ba2\u6237\u7aef\u5f62\u6001\u5347\u7ea7\u4e0e KV \u8bed\u4e49\u539f\u751f\u652f\u6301<\/strong>\uff1a\u5bf9\u73b0\u6709\u5ba2\u6237\u7aef\u67b6\u6784\u8fdb\u884c\u5168\u9762\u5347\u7ea7\uff0c\u539f\u751f\u652f\u6301\u952e\u503c\uff08KV\uff09\u8bed\u4e49\u64cd\u4f5c\u3002\u901a\u8fc7\u63d0\u4f9b\u7b80\u6d01\u9ad8\u6548\u7684 KV API \u63a5\u53e3\uff0c\u964d\u4f4e\u5e94\u7528\u5f00\u53d1\u7684\u590d\u6742\u6027\uff0c\u4e3a\u6784\u5efa\u9ad8\u6027\u80fd\u7684 KVCache \u7cfb\u7edf\u63d0\u4f9b\u66f4\u52a0\u4fbf\u6377\u7684\u6280\u672f\u57fa\u7840\u3002<br \/>\uff084\uff09<strong>\u4ea7\u54c1\u529b\u6301\u7eed\u5f3a\u5316\u4e0e\u6545\u969c\u81ea\u6108\u80fd\u529b\u63d0\u5347<\/strong>\uff1a\u6301\u7eed\u52a0\u5f3a 3FS \u7684\u4ea7\u54c1\u529b\uff0c\u901a\u8fc7\u5f15\u5165\u52a8\u6001\u526f\u672c\u8fc1\u79fb\u91cd\u6784\u7b49\u673a\u5236\uff0c\u8fdb\u4e00\u6b65\u964d\u4f4e\u6545\u969c\u573a\u666f\u4e0b\u5bf9\u4e0a\u5c42\u4e1a\u52a1\u53ef\u7528\u6027\u7684\u5f71\u54cd\uff0c\u6700\u5927\u7a0b\u5ea6\u5730\u4fdd\u969c\u4e1a\u52a1\u8fde\u7eed\u6027\uff0c\u4e3a\u5173\u952e\u4e1a\u52a1\u573a\u666f\u63d0\u4f9b\u4f01\u4e1a\u7ea7\u7684\u9ad8\u53ef\u7528\u6027\u4fdd\u969c\u3002<br \/>\uff085\uff09<strong>\u843d\u76d8\u5f15\u64ce\u4f18\u5316\u4e0e\u786c\u4ef6\u534f\u540c\u6df1\u5ea6\u878d\u5408<\/strong>\uff1a\u6301\u7eed\u4f18\u5316 3FS \u843d\u76d8\u5f15\u64ce\u7684\u6027\u80fd\u8868\u73b0\uff0c\u6df1\u5ea6\u7ed3\u5408\u963f\u91cc\u4e91\u670d\u52a1\u5668\u81ea\u7814\u7684 AliFlash SSD \u548c AliSCM \u7b49\u65b0\u578b\u5b58\u50a8\u786c\u4ef6\u7684\u7279\u6027\u548c\u4f18\u52bf\u3002\u901a\u8fc7\u8f6f\u786c\u534f\u540c\u7684\u6df1\u5ea6\u4f18\u5316\uff0c\u5145\u5206\u53d1\u6325\u65b0\u578b\u786c\u4ef6\u7684\u6027\u80fd\u6f5c\u529b\uff0c\u63d0\u4f9b\u8f6f\u786c\u4ef6\u7ed3\u5408\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u4e3a\u7528\u6237\u63d0\u4f9b\u6781\u81f4\u7684\u5b58\u50a8\u6027\u80fd\u4f53\u9a8c\u3002<\/p>\n<h3>4.2 \u670d\u52a1\u5668\u786c\u4ef6\u80fd\u529b\u6301\u7eed\u5347\u7ea7<\/h3>\n<p>\u968f\u7740AI\u5e94\u7528\u573a\u666f\u7684\u591a\u6837\u5316\u4e0e\u590d\u6742\u5316\u9700\u6c42\u6301\u7eed\u589e\u957f\uff0c\u963f\u91cc\u4e91\u670d\u52a1\u5668\u56e2\u961f\u81ea\u7814\u7684 AI SSD \u53ca\u78d0\u4e45\u5b58\u50a8\u670d\u52a1\u5668\u5e73\u53f0\u5c06\u6301\u7eed\u8fed\u4ee3\u4f18\u5316\uff0c\u4ee5\u7cbe\u51c6\u9002\u914dAI\u4e1a\u52a1\u7684\u52a8\u6001\u9700\u6c42\u3002\u6211\u4eec\u81f4\u529b\u4e8e\u4e3aAI\u63a8\u7406\u573a\u666f\u6253\u9020\u4ee5 KVCache \u4e3a\u6838\u5fc3\u7684\u4e00\u4f53\u5316\u7aef\u5230\u7aef\u57fa\u7840\u8bbe\u65bd\uff0c\u901a\u8fc7\u8f6f\u786c\u534f\u540c\u7684\u6df1\u5ea6\u4f18\u5316\uff0c\u6784\u5efa\u9ad8\u6548\u3001\u667a\u80fd\u7684AI\u6280\u672f\u5e95\u5ea7\u3002<br \/>\uff081\uff09<strong>\u5b58\u50a8\u786c\u4ef6\u4f18\u5316<\/strong>\uff1a\u5339\u914d GPU \u7b97\u529b\uff0c\u8ba1\u7b97\u7f51\u7edc\u5e26\u5bbd\uff0c\u5b58\u50a8\u63d0\u4f9b\u9ad8\u4f4e\u5ef6\u8fdf\uff0c\u9ad8 IOPS\uff0c\u9ad8\u5e26\u5bbd\u80fd\u529b\u7684 AI SSD<br \/>\uff082\uff09<strong>\u8ba1\u7b97\u5b58\u50a8\u4f18\u5316<\/strong>\uff1aGPU \u76f4\u901a\u5b58\u50a8\u5b58\u50a8\u964d\u4f4e\u5ef6\u8fdf\uff0c\u6d88\u9664\u5185\u5b58\u5899\u5f71\u54cd\uff0c\u5b58\u50a8KV\u63a5\u5165\u6a21\u5f0f\u4f18\u5316<br \/>\uff083\uff09<strong>\u5b58\u50a8\u7cfb\u7edf\u4f18\u5316<\/strong>\uff1a\u4ee5 KVCache \u7ba1\u7406\u7cfb\u7edf\u4e3a\u4e2d\u5fc3\u6570\u636e placement \u7b56\u7565\uff0c\u63d0\u4f9b\u4e13\u5c5e\u5b58\u50a8\u5f15\u64ce\uff0c\u964d\u4f4e\u6587\u4ef6\u7cfb\u7edf\u5f00\u9500<br \/>\uff084\uff09<strong>\u589e\u503c\u80fd\u529b\u4f18\u5316<\/strong>\uff1a\u6570\u636e\u538b\u7f29\uff0c\u5206\u5c42\u6dd8\u6c70\uff0c\u6570\u636e\u611f\u77e5\u53ca\u4efb\u52a1\u8c03\u5ea6\uff0c\u4efb\u52a1\u961f\u5217\u9884\u53d6\uff0c\u70ed\u6570\u636epin\/unpin\u7b49\u80fd\u529b\u52a0\u5f3a<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047486351\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56fe21 \u9762\u5411KVCache\u7684\u7aef\u5230\u7aef\u65b9\u6848<\/p>\n<h2>5. \u4e86\u89e3\u66f4\u591a<\/h2>\n<p>\u6b22\u8fce\u641c\u7d22\u9489\u9489\u7fa4\u53f7\uff1a109765011301\u5165\u7fa4\u4e0e\u6280\u672f\u4e13\u5bb6\u4ea4\u6d41\uff01<\/p>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000047486483\">https:\/\/segmentfault.com\/a\/1190000047486483<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5bfc\u8bfb \u63a5\u7740\u4e0a\u4e00\u8282\u5185\u5bb9\uff0c\u672c\u6587\u7cfb\u7edf\u4ecb\u7ecd\u4e86\u963f\u91cc\u4e91 Tair KVCache \u56e2\u961f\u4e0e\u670d\u52a1\u5668\u7814\u53d1\u5b58\u50a8\u8f6f\u786c\u4ef6\u7ed3\u5408\u56e2\u961f\u5bf9 3 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10021132","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10021132","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10021132"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10021132\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10021132"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10021132"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10021132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}