{"id":854,"date":"2026-07-17T01:48:41","date_gmt":"2026-07-16T17:48:41","guid":{"rendered":"https:\/\/blog.itsmygo.uk\/2026\/07\/17\/%e8%aa%8d%e8%ad%98-lmcache%ef%bc%9a%e7%82%ba%e4%bb%80%e9%ba%bc-llm-%e6%8e%a8%e8%ab%96%e9%9c%80%e8%a6%81-kv-cache-%e9%87%8d%e7%94%a8\/"},"modified":"2026-08-05T10:03:15","modified_gmt":"2026-08-05T02:03:15","slug":"%e8%aa%8d%e8%ad%98-lmcache%ef%bc%9a%e7%82%ba%e4%bb%80%e9%ba%bc-llm-%e6%8e%a8%e8%ab%96%e9%9c%80%e8%a6%81-kv-cache-%e9%87%8d%e7%94%a8","status":"publish","type":"post","link":"https:\/\/blog.itsmygo.uk\/wordpress\/2026\/07\/17\/%e8%aa%8d%e8%ad%98-lmcache%ef%bc%9a%e7%82%ba%e4%bb%80%e9%ba%bc-llm-%e6%8e%a8%e8%ab%96%e9%9c%80%e8%a6%81-kv-cache-%e9%87%8d%e7%94%a8\/","title":{"rendered":"\u3010LMCache \u5165\u9580\u5230\u5be6\u6230\u3011#01 \u8a8d\u8b58 LMCache\uff1a\u70ba\u4ec0\u9ebc LLM \u63a8\u8ad6\u9700\u8981 KV Cache \u91cd\u7528"},"content":{"rendered":"\n<div id=\"quiz-a3b8642d\">\n<style>\n#quiz-a3b8642d .question {\n        background: white; border-radius: 8px; padding: 20px; margin: 20px 0;\n        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);\n      }#quiz-a3b8642d .question h3 { margin-top: 0; color: #333; }#quiz-a3b8642d .options { list-style: none; padding: 0; }#quiz-a3b8642d .options li {\n        padding: 12px 15px; margin: 8px 0; border: 2px solid #ddd;\n        border-radius: 6px; cursor: pointer; transition: all 0.2s;\n      }#quiz-a3b8642d .options li:hover:not(.disabled) { border-color: #4caf50; background: #f0fff0; }#quiz-a3b8642d .options li.correct { border-color: #4caf50; background: #e8f5e9; }#quiz-a3b8642d .options li.wrong { border-color: #f44336; background: #ffebee; }#quiz-a3b8642d .options li.disabled { cursor: default; opacity: 0.7; }#quiz-a3b8642d .options li.show-answer { border-color: #4caf50; background: #e8f5e9; }#quiz-a3b8642d .feedback { margin-top: 15px; padding: 12px; border-radius: 6px; display: none; }#quiz-a3b8642d .feedback.correct { background: #e8f5e9; color: #2e7d32; display: block; }#quiz-a3b8642d .feedback.wrong { background: #ffebee; color: #c62828; display: block; }#quiz-a3b8642d .score {\n        text-align: center; font-size: 1.5em; padding: 20px;\n        background: white; border-radius: 8px; margin-top: 20px;\n      }#quiz-a3b8642d .code-block {\n        background: #1e1e1e; color: #d4d4d4; padding: 14px; border-radius: 6px;\n        font-family: \"Monaco\", \"Consolas\", \"Courier New\", monospace;\n        font-size: 0.9em; overflow-x: auto; margin: 12px 0; white-space: pre-wrap;\n      }\n<\/style>\n<h1>\u6e2c\u9a57\uff1a\u8a8d\u8b58 LMCache<\/h1>\n    <p>\u5171 5 \u984c\uff0c\u9ede\u9078\u7b54\u6848\u5f8c\u6703\u7acb\u5373\u986f\u793a\u7d50\u679c<\/p>\n\n    <div class=\"question\" id=\"q1\">\n      <h3>1. \u5728 LLM \u63a8\u8ad6\u4e2d\uff0c\u70ba\u4ec0\u9ebc prefill \u968e\u6bb5\u88ab\u5f62\u5bb9\u70ba\u300c\u6602\u8cb4\u300d\uff1f<\/h3>\n      <ul class=\"options\">\n        <li onclick=\"checkAnswer(1, 'A', 'B')\">A. \u5b83\u6703\u53cd\u8986\u57f7\u884c\u5f88\u591a\u6b21\uff0c\u6bcf\u6b21\u90fd\u5410\u4e00\u500b token<\/li>\n        <li onclick=\"checkAnswer(1, 'B', 'B')\">B. \u5b83\u8981\u628a\u6574\u6bb5\u8f38\u5165\u7684\u6bcf\u500b token \u90fd\u7b97\u4e00\u904d\uff0c\u6210\u672c\u8207\u8f38\u5165\u9577\u5ea6\u6210\u6b63\u6bd4<\/li>\n        <li onclick=\"checkAnswer(1, 'C', 'B')\">C. \u5b83\u9700\u8981\u5b58\u53d6\u9060\u7aef\u8cc7\u6599\u5eab\uff0c\u7db2\u8def\u5ef6\u9072\u5f88\u9ad8<\/li>\n        <li onclick=\"checkAnswer(1, 'D', 'B')\">D. \u5b83\u53ea\u5728\u751f\u6210\u6700\u5f8c\u4e00\u500b token \u6642\u624d\u57f7\u884c<\/li>\n      <\/ul>\n      <div class=\"feedback\" id=\"fb1\"><\/div>\n    <\/div>\n\n    <div class=\"question\" id=\"q2\">\n      <h3>2. KV Cache \u6700\u8cbc\u5207\u7684\u767d\u8a71\u7406\u89e3\u662f\u4ec0\u9ebc\uff1f<\/h3>\n      <ul class=\"options\">\n        <li onclick=\"checkAnswer(2, 'A', 'C')\">A. \u4f7f\u7528\u8005\u8f38\u5165\u7684\u539f\u59cb\u6587\u5b57\u5099\u4efd<\/li>\n        <li onclick=\"checkAnswer(2, 'B', 'C')\">B. \u6a21\u578b\u6700\u7d42\u751f\u6210\u7684\u56de\u7b54\u5167\u5bb9<\/li>\n        <li onclick=\"checkAnswer(2, 'C', 'C')\">C. \u6a21\u578b\u8b80\u904e\u9019\u6bb5\u6587\u5b57\u5f8c\u7522\u751f\u7684\u300c\u8a18\u61b6\u300d\uff08\u6bcf\u500b token \u7684 Key\/Value\uff09<\/li>\n        <li onclick=\"checkAnswer(2, 'D', 'C')\">D. GPU \u7684\u6eab\u5ea6\u8207\u4f7f\u7528\u7387\u76e3\u63a7\u8cc7\u6599<\/li>\n      <\/ul>\n      <div class=\"feedback\" id=\"fb2\"><\/div>\n    <\/div>\n\n    <div class=\"question\" id=\"q3\">\n      <h3>3. LMCache \u7684\u6838\u5fc3\u50f9\u503c\u53ef\u4ee5\u7528\u54ea\u53e5\u8a71\u6982\u62ec\uff1f<\/h3>\n      <ul class=\"options\">\n        <li onclick=\"checkAnswer(3, 'A', 'A')\">A. \u628a\u91cd\u8907\u524d\u7db4\u7684\u300c\u91cd\u7b97\u300d\u8b8a\u6210\u300c\u8f09\u5165\u300d<\/li>\n        <li onclick=\"checkAnswer(3, 'B', 'A')\">B. \u8b93\u6a21\u578b\u751f\u6210\u7684\u56de\u7b54\u66f4\u6e96\u78ba<\/li>\n        <li onclick=\"checkAnswer(3, 'C', 'A')\">C. \u58d3\u7e2e\u6a21\u578b\u6b0a\u91cd\u4ee5\u7bc0\u7701\u986f\u5b58<\/li>\n        <li onclick=\"checkAnswer(3, 'D', 'A')\">D. \u81ea\u52d5\u628a\u9577 prompt \u7e2e\u77ed\u6210\u77ed prompt<\/li>\n      <\/ul>\n      <div class=\"feedback\" id=\"fb3\"><\/div>\n    <\/div>\n\n    <div class=\"question\" id=\"q4\">\n      <h3>4. \u4e0b\u5217\u54ea\u500b\u5834\u666f\u300c\u6700\u4e0d\u9069\u5408\u300d\u7528 LMCache \u4f86\u7701\u7b97\u529b\uff1f<\/h3>\n      <ul class=\"options\">\n        <li onclick=\"checkAnswer(4, 'A', 'D')\">A. \u5171\u7528\u540c\u4e00\u6bb5\u9577 system prompt \u7684\u7dda\u4e0a\u5ba2\u670d<\/li>\n        <li onclick=\"checkAnswer(4, 'B', 'D')\">B. \u91dd\u5c0d\u540c\u4e00\u4efd\u9577\u6587\u4ef6\u53cd\u8986\u554f\u7b54<\/li>\n        <li onclick=\"checkAnswer(4, 'C', 'D')\">C. \u5e36\u8457\u5b8c\u6574\u6b77\u53f2\u7684\u591a\u8f2a\u5c0d\u8a71<\/li>\n        <li onclick=\"checkAnswer(4, 'D', 'D')\">D. \u7ffb\u8b6f\u4e00\u5806\u5f7c\u6b64\u7121\u95dc\u3001\u524d\u7db4\u5404\u4e0d\u76f8\u540c\u7684\u77ed\u53e5<\/li>\n      <\/ul>\n      <div class=\"feedback\" id=\"fb4\"><\/div>\n    <\/div>\n\n    <div class=\"question\" id=\"q5\">\n      <h3>5. \u95dc\u65bc LMCache \u8207 vLLM \u5167\u5efa prefix caching \u7684\u95dc\u4fc2\uff0c\u54ea\u500b\u8aaa\u6cd5\u6b63\u78ba\uff1f<\/h3>\n      <ul class=\"options\">\n        <li onclick=\"checkAnswer(5, 'A', 'C')\">A. LMCache \u662f\u7528\u4f86\u53d6\u4ee3 vLLM \u7684\u7368\u7acb\u63a8\u8ad6\u5f15\u64ce<\/li>\n        <li onclick=\"checkAnswer(5, 'B', 'C')\">B. \u5169\u8005\u529f\u80fd\u5b8c\u5168\u76f8\u540c\uff0c\u53ea\u80fd\u4e8c\u9078\u4e00<\/li>\n        <li onclick=\"checkAnswer(5, 'C', 'C')\">C. \u4e92\u88dc\uff1aprefix caching \u662f\u5f15\u64ce\u5167\u55ae\u6a5f\u5feb\u53d6\uff0cLMCache \u662f\u5916\u5c64\u8de8\u5c64\u7d1a\u3001\u53ef\u8de8\u7bc0\u9ede\u7684 KV \u5132\u5b58<\/li>\n        <li onclick=\"checkAnswer(5, 'D', 'C')\">D. LMCache \u53ea\u80fd\u5b58\u5728 GPU \u8a18\u61b6\u9ad4\uff0c\u5bb9\u91cf\u6bd4 prefix caching \u66f4\u5c0f<\/li>\n      <\/ul>\n      <div class=\"feedback\" id=\"fb5\"><\/div>\n    <\/div>\n\n    <div class=\"score\" id=\"score\" style=\"display:none;\"><\/div>\n<script>\n\n      let answered = 0;\n      let correct = 0;\n      const total = 5;\n      const explanations = {\n        1: \"Prefill \u8981\u628a\u6574\u6bb5\u8f38\u5165\u7684\u6bcf\u500b token \u90fd\u7b97\u4e00\u904d\u7522\u751f KV Cache\uff0c\u6210\u672c\u8207\u8f38\u5165\u9577\u5ea6\u6210\u6b63\u6bd4\uff0c\u4e14\u662f\u4e00\u6b21\u6027\u5927\u7b46\u958b\u92b7\uff0c\u4e5f\u6c7a\u5b9a\u4e86 TTFT\u3002A \u63cf\u8ff0\u7684\u662f decode \u968e\u6bb5\u3002\",\n        2: \"KV Cache \u662f\u6ce8\u610f\u529b\u6a5f\u5236\u4e2d\u6bcf\u500b token \u7684 Key\/Value \u5feb\u53d6\uff0c\u53ef\u7406\u89e3\u70ba\u300c\u6a21\u578b\u8b80\u904e\u9019\u6bb5\u6587\u5b57\u5f8c\u7684\u8a18\u61b6\u300d\uff0c\u8b93\u5f8c\u7e8c\u751f\u6210\u4e0d\u7528\u91cd\u8b80\u6574\u6bb5\u8f38\u5165\u3002\",\n        3: \"LMCache \u628a\u76f8\u540c\u524d\u7db4\u7b97\u904e\u7684 KV Cache \u5b58\u8d77\u4f86\u3001\u4e0b\u6b21\u76f4\u63a5\u8f09\u5165\uff0c\u7b49\u65bc\u628a\u300c\u91cd\u7b97 prefill\u300d\u8b8a\u6210\u300c\u8f09\u5165\u300d\uff0c\u85c9\u6b64\u7701\u7b97\u529b\u3001\u964d TTFT\u3002\",\n        4: \"LMCache \u7684\u6548\u76ca\u5efa\u7acb\u5728\u300c\u91cd\u8907\u524d\u7db4\u300d\u4e0a\u3002\u7ffb\u8b6f\u4e92\u4e0d\u76f8\u95dc\u7684\u77ed\u53e5\u524d\u7db4\u5404\u4e0d\u76f8\u540c\uff0c\u5feb\u53d6\u547d\u4e2d\u7387\u6975\u4f4e\uff0c\u6548\u76ca\u8da8\u8fd1\u65bc\u96f6\uff0c\u751a\u81f3\u6709\u67e5\u627e\u958b\u92b7\u3002\",\n        5: \"\u5169\u8005\u662f\u4e92\u88dc\u800c\u975e\u53d6\u4ee3\u3002vLLM \u7684 prefix caching \u53ea\u5728\u55ae\u6a5f GPU \u8a18\u61b6\u9ad4\u5167\u3001\u6613\u88ab\u64e0\u6389\uff1bLMCache \u628a KV Cache \u5f80 CPU\u3001\u78c1\u789f\u3001\u9060\u7aef\u5ef6\u4f38\uff0c\u5bb9\u91cf\u66f4\u5927\u4e14\u53ef\u8de8\u7bc0\u9ede\u5171\u4eab\u3002\",\n      };\n\n      function checkAnswer(qNum, selected, correctAns) {\n        const question = document.getElementById(\"q\" + qNum);\n        if (question.classList.contains(\"answered\")) return;\n        question.classList.add(\"answered\");\n        answered++;\n        const options = question.querySelectorAll(\".options li\");\n        options.forEach((opt) => {\n          opt.classList.add(\"disabled\");\n          if (opt.textContent.startsWith(correctAns + \".\")) {\n            opt.classList.add(\"show-answer\");\n          }\n        });\n        const feedback = document.getElementById(\"fb\" + qNum);\n        if (selected === correctAns) {\n          correct++;\n          feedback.className = \"feedback correct\";\n          feedback.innerHTML = \"\u2713 \u6b63\u78ba\uff01\" + explanations[qNum];\n        } else {\n          feedback.className = \"feedback wrong\";\n          feedback.innerHTML = \"\u2717 \u932f\u8aa4\u3002\u6b63\u78ba\u7b54\u6848\u662f \" + correctAns + \"\u3002\" + explanations[qNum];\n          options.forEach((opt) => {\n            if (opt.textContent.startsWith(selected + \".\")) {\n              opt.classList.add(\"wrong\");\n            }\n          });\n        }\n        if (answered === total) {\n          const scoreDiv = document.getElementById(\"score\");\n          scoreDiv.style.display = \"block\";\n          scoreDiv.innerHTML =\n            \"\u6e2c\u9a57\u5b8c\u6210\uff01\u5f97\u5206\uff1a\" + correct + \" \/ \" + total +\n            (correct === total ? \" \ud83c\udf89 \u5168\u5c0d\uff01\"\n              : correct >= Math.ceil(total * 0.6) ? \" \ud83d\udc4d \u4e0d\u932f\uff01\"\n              : \" \ud83d\udcda \u518d\u8907\u7fd2\u4e00\u4e0b\u5427\");\n        }\n      }\n    \n<\/script>\n<\/div>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u3010LMCache \u5165\u9580\u5230\u5be6\u6230\u3011\u7cfb\u5217 #01\uff0c\u5171 4 \u7bc7<br>\u96e3\u5ea6\uff1aL2-\u9032\u968e\u3000\uff5c\u3000\u524d\u7f6e\u77e5\u8b58\uff1a\u5c0d LLM \u63a8\u8ad6\u3001Transformer\u3001vLLM \u6709\u57fa\u672c\u8a8d\u8b58\u5373\u53ef<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u53e5\u8a71\u8aaa\u660e<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">LMCache \u662f\u4e00\u500b\u300c\u628a LLM \u7b97\u904e\u7684\u4e2d\u9593\u7d50\u679c\uff08KV Cache\uff09\u5b58\u8d77\u4f86\u3001\u4e0b\u6b21\u76f4\u63a5\u8f09\u5165\u300d\u7684\u5feb\u53d6\u5c64\uff0c\u8b93\u91cd\u8907\u7684\u524d\u7db4\uff08system prompt\u3001RAG \u6587\u4ef6\u3001\u591a\u8f2a\u5c0d\u8a71\u6b77\u53f2\uff09\u4e0d\u7528\u6bcf\u6b21\u90fd\u91cd\u65b0\u7b97\u4e00\u904d\uff0c\u85c9\u6b64\u964d\u4f4e\u9996 token \u5ef6\u9072\uff08TTFT\uff09\u4e26\u7701\u4e0b GPU \u7b97\u529b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9019\u7bc7\u662f\u7cfb\u5217\u958b\u7bc7\uff0c\u76ee\u6a19\u4e0d\u662f\u6559\u4f60\u600e\u9ebc\u88dd\u3001\u600e\u9ebc\u8abf\u53c3\uff0c\u800c\u662f\u5148\u8b93\u4f60<strong>\u770b\u61c2\u5b83\u5728\u89e3\u6c7a\u4ec0\u9ebc\u554f\u984c<\/strong>\u2014\u2014\u9019\u6a23\u5f8c\u9762\u5e7e\u7bc7\u8ac7\u8a2d\u5b9a\u3001\u8ac7\u6548\u80fd\u6642\uff0c\u4f60\u624d\u77e5\u9053\u6bcf\u500b\u6578\u5b57\u662f\u5728\u7701\u4ec0\u9ebc\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5148\u641e\u61c2\uff1a\u4e00\u6b21 LLM \u63a8\u8ad6\u5176\u5be6\u5206\u5169\u6bb5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7576\u4f60\u9001\u4e00\u6bb5 prompt \u7d66\u6a21\u578b\u3001\u8981\u5b83\u63a5\u8457\u5f80\u4e0b\u5beb\uff0c\u6a21\u578b\u5167\u90e8\u5176\u5be6\u8dd1\u4e86\u5169\u500b\u968e\u6bb5\uff0c\u6210\u672c\u5dee\u5f88\u591a\u3002<\/p>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-1\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\">\u4f60\u7684\u8f38\u5165\uff1a <span class=\"hljs-string\">\"\u8acb\u6839\u64da\u4ee5\u4e0b\u6587\u4ef6\u56de\u7b54\u554f\u984c\uff1a&lt;8000 \u5b57\u7684\u6587\u4ef6&gt; \u554f\u984c\u662f...\"<\/span>\n                    \u2502\n        \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n        \u25bc                       \u25bc\n   &#91;<span class=\"hljs-number\">1<\/span>] Prefill \u968e\u6bb5          &#91;<span class=\"hljs-number\">2<\/span>] Decode \u968e\u6bb5\n   \u628a\u6574\u6bb5\u8f38\u5165\u4e00\u6b21\u8b80\u9032\u53bb        \u4e00\u500b\u4e00\u500b token \u5f80\u5916\u5410\n   \u7b97\u51fa\u6bcf\u500b token \u7684 KV       <span class=\"hljs-string\">\"\u6839\"<\/span> <span class=\"hljs-string\">\"\u64da\"<\/span> <span class=\"hljs-string\">\"\u6587\"<\/span> <span class=\"hljs-string\">\"\u4ef6\"<\/span> ...\n   \u2192 \u6602\u8cb4\u3001\u7b97\u529b\u5bc6\u96c6            \u2192 \u76f8\u5c0d\u4fbf\u5b9c\uff0c\u4f46\u8981\u8dd1\u5f88\u591a\u6b21\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-1\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u9019\u5728\u5e79\u561b\uff1f\u5169\u968e\u6bb5\u767d\u8a71\u7ffb\u8b6f<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li><strong>Prefill\uff08\u9810\u586b\uff09<\/strong>\uff1a\u6a21\u578b\u628a\u4f60\u300c\u8f38\u5165\u7684\u6bcf\u4e00\u500b token\u300d\u90fd\u7b97\u4e00\u904d\uff0c\u7522\u751f\u4e00\u4efd\u53eb\u505a <strong>KV Cache<\/strong> \u7684\u4e2d\u9593\u8cc7\u6599\u3002\u8f38\u5165\u8d8a\u9577\uff0c\u9019\u6b65\u8d8a\u8cb4\u2014\u20148000 \u5b57\u7684\u6587\u4ef6\uff0c\u5c31\u662f 8000 \u591a\u500b token \u5168\u90e8\u8981\u7b97\u3002<\/li>\n\n\n<li><strong>Decode\uff08\u89e3\u78bc\uff09<\/strong>\uff1a\u6a21\u578b\u958b\u59cb\u4e00\u500b token\u3001\u4e00\u500b token \u5f80\u5916\u751f\u6210\u56de\u7b54\u3002\u6bcf\u751f\u4e00\u500b\u65b0 token\uff0c\u53ea\u8981\u770b\u524d\u9762\u5b58\u597d\u7684 KV Cache \u5c31\u597d\uff0c\u4e0d\u7528\u91cd\u7b97\u6574\u6bb5\u8f38\u5165\u3002<\/li>\n\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u95dc\u9375\u76f4\u89ba\uff1a<strong>prefill \u7684\u6210\u672c\u8ddf\u300c\u8f38\u5165\u9577\u5ea6\u300d\u6210\u6b63\u6bd4\uff0c\u800c\u4e14\u662f\u4e00\u6b21\u6027\u7684\u5927\u7b46\u958b\u92b7\u3002<\/strong> \u4f60\u7684\u56de\u7b54\u9084\u6c92\u958b\u59cb\u5410\u7b2c\u4e00\u500b\u5b57\u4e4b\u524d\uff0cGPU \u5df2\u7d93\u5728 prefill \u9019\u6b65\u5fd9\u4e86\u534a\u5929\u2014\u2014\u9019\u6bb5\u6642\u9593\u5c31\u662f\u4f7f\u7528\u8005\u611f\u53d7\u5230\u7684\u300c\u9996 token \u5ef6\u9072\uff08TTFT\uff0cTime To First Token\uff09\u300d\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">KV Cache \u5230\u5e95\u662f\u4ec0\u9ebc\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Transformer \u7684\u6ce8\u610f\u529b\u6a5f\u5236\uff08attention\uff09\u5728\u7b97\u6bcf\u500b token \u6642\uff0c\u9700\u8981\u53c3\u8003\u524d\u9762\u6240\u6709 token \u7684\u5169\u4efd\u5411\u91cf\uff1a<strong>Key\uff08K\uff09<\/strong> \u548c <strong>Value\uff08V\uff09<\/strong>\u3002<\/p>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\"><span><code class=\"hljs\">                \u4f60\u60f3\u751f\u6210\u4e0b\u4e00\u500b token \u6642\n                      \u2502\n   \u8981\u56de\u982d\u770b\u524d\u9762\u6bcf\u500b token \u7684 K \u548c V \u2500\u2500\u2510\n                                     \u2502\n        \u5982\u679c\u6bcf\u6b21\u90fd\u91cd\u7b97 \u2192 \u8d85\u7d1a\u6d6a\u8cbb     \u2502\n        \u6240\u4ee5\u7b97\u4e00\u6b21\u5c31\u300c\u5feb\u53d6\u300d\u8d77\u4f86 \u2500\u2500\u2500\u2500\u2500\u2500\u2518\n              \u9019\u4efd\u5feb\u53d6 = KV Cache\n<\/code><\/span><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u7528\u4e00\u53e5\u8a71\u7ffb\u8b6f\uff1a<strong>KV Cache \u5c31\u662f\u300c\u6a21\u578b\u8b80\u904e\u9019\u6bb5\u6587\u5b57\u5f8c\u7684\u8a18\u61b6\u300d\u3002<\/strong> \u6709\u4e86\u5b83\uff0c\u6a21\u578b\u63a5\u8457\u751f\u6210\u6642\u4e0d\u7528\u628a\u6574\u6bb5\u8f38\u5165\u91cd\u8b80\u4e00\u904d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u91cd\u9ede\u4f86\u4e86\u2014\u2014<strong>\u9019\u4efd\u300c\u8a18\u61b6\u300d\u662f\u53ef\u4ee5\u88ab\u91cd\u8907\u4f7f\u7528\u7684<\/strong>\u3002\u5982\u679c\u5169\u500b\u4e0d\u540c\u7684\u8acb\u6c42\uff0c\u958b\u982d\u90fd\u662f\u540c\u4e00\u6bb5\u6587\u5b57\uff08\u4f8b\u5982\u540c\u4e00\u4efd system prompt\u3001\u540c\u4e00\u4efd RAG \u6587\u4ef6\uff09\uff0c\u90a3\u5b83\u5011\u7b97\u51fa\u4f86\u7684 KV Cache \u524d\u7db4\u5176\u5be6\u4e00\u6a21\u4e00\u6a23\u3002\u65e2\u7136\u4e00\u6a23\uff0c\u4f55\u5fc5\u7b97\u5169\u6b21\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9019\u5c31\u662f LMCache \u7684\u5207\u5165\u9ede\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">LMCache \u60f3\u89e3\u6c7a\u7684\u6838\u5fc3\u554f\u984c\uff1a\u91cd\u8907\u7684 prefill<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6c92\u6709\u5feb\u53d6\u91cd\u7528\u6642\uff0c\u5178\u578b\u7684\u6d6a\u8cbb\u9577\u9019\u6a23\uff1a<\/p>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-2\" data-shcb-language-name=\"CSS\" data-shcb-language-slug=\"css\"><span><code class=\"hljs language-css\">\u8acb\u6c42 <span class=\"hljs-selector-tag\">A<\/span>\uff1a <span class=\"hljs-selector-attr\">&#91;system prompt 2000 tokens]<\/span> + <span class=\"hljs-selector-attr\">&#91;\u4f7f\u7528\u8005\u554f\u984c]<\/span>\n         \u2514\u2500 <span class=\"hljs-selector-tag\">prefill<\/span> \u5168\u90e8 2000+ <span class=\"hljs-selector-tag\">tokens<\/span> \u2500\u2518   \u2190 \u7b97\u4e00\u6b21\n\n\u8acb\u6c42 <span class=\"hljs-selector-tag\">B<\/span>\uff1a <span class=\"hljs-selector-attr\">&#91;system prompt 2000 tokens]<\/span> + <span class=\"hljs-selector-attr\">&#91;\u53e6\u4e00\u500b\u554f\u984c]<\/span>\n         \u2514\u2500 <span class=\"hljs-selector-tag\">prefill<\/span> \u5168\u90e8 2000+ <span class=\"hljs-selector-tag\">tokens<\/span> \u2500\u2518   \u2190 \u53c8\u7b97\u4e00\u6b21\uff08\u4e00\u6a21\u4e00\u6a23\u7684\u524d\u7db4\uff01\uff09\n\n\u8acb\u6c42 <span class=\"hljs-selector-tag\">C<\/span>\uff1a <span class=\"hljs-selector-attr\">&#91;system prompt 2000 tokens]<\/span> + <span class=\"hljs-selector-attr\">&#91;\u7b2c\u4e09\u500b\u554f\u984c]<\/span>\n         \u2514\u2500 <span class=\"hljs-selector-tag\">prefill<\/span> \u5168\u90e8 2000+ <span class=\"hljs-selector-tag\">tokens<\/span> \u2500\u2518   \u2190 \u518d\u7b97\u4e00\u6b21...\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-2\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">CSS<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">css<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u90a3 2000 \u500b token \u7684 system prompt\uff0cKV Cache \u6bcf\u6b21\u90fd\u9577\u5f97\u4e00\u6a23\uff0c\u537b\u88ab GPU \u91cd\u7b97\u4e86 N \u6b21\u3002\u6709\u4e86 LMCache\uff1a<\/p>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\"><span><code class=\"hljs\">\u8acb\u6c42 A\uff1a prefill system prompt \u2192 \u628a KV Cache \u5b58\u8d77\u4f86\n\u8acb\u6c42 B\uff1a \u76f4\u63a5\u8f09\u5165\u5b58\u597d\u7684 KV Cache\uff08\u8df3\u904e prefill\uff09\u2192 \u53ea\u7b97\u65b0\u554f\u984c\n\u8acb\u6c42 C\uff1a \u76f4\u63a5\u8f09\u5165\u5b58\u597d\u7684 KV Cache\uff08\u8df3\u904e prefill\uff09\u2192 \u53ea\u7b97\u65b0\u554f\u984c\n<\/code><\/span><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u300c\u91cd\u7b97\u300d\u8b8a\u6210\u300c\u8f09\u5165\u300d<\/strong>\u2014\u2014\u9019\u5c31\u662f LMCache \u4e00\u53e5\u8a71\u80fd\u8b1b\u5b8c\u7684\u6838\u5fc3\u50f9\u503c\u3002\u8f09\u5165\u4e00\u4efd\u5b58\u597d\u7684 KV Cache\uff0c\u901a\u5e38\u6bd4\u91cd\u65b0 prefill \u5feb\u5f97\u591a\uff0c\u4e5f\u4e0d\u5403 GPU \u7b97\u529b\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5178\u578b\u53d7\u76ca\u5834\u666f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0d\u662f\u6240\u6709\u60c5\u6cc1\u90fd\u9700\u8981 LMCache\u3002\u5b83\u767c\u63ee\u50f9\u503c\u7684\u524d\u63d0\u662f\uff1a<strong>\u8acb\u6c42\u4e4b\u9593\u6709\u5927\u91cf\u91cd\u8907\u7684\u524d\u7db4<\/strong>\u3002\u4ee5\u4e0b\u56db\u7a2e\u5834\u666f\u525b\u597d\u90fd\u7b26\u5408\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table>\n<thead>\n<tr>\n<th>\u5834\u666f<\/th>\n<th>\u70ba\u4ec0\u9ebc\u53d7\u76ca<\/th>\n<th>\u91cd\u8907\u7684\u524d\u7db4\u662f\u4ec0\u9ebc<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>RAG\uff08\u6aa2\u7d22\u589e\u5f37\u751f\u6210\uff09<\/strong><\/td>\n<td>\u5f88\u591a\u554f\u984c\u67e5\u5230\u540c\u4e00\u6279\u6587\u4ef6<\/td>\n<td>\u585e\u9032 prompt \u7684\u90a3\u4efd\u6587\u4ef6\u5167\u5bb9<\/td>\n<\/tr>\n<tr>\n<td><strong>\u591a\u8f2a\u5c0d\u8a71<\/strong><\/td>\n<td>\u6bcf\u8f2a\u90fd\u8981\u5e36\u4e0a\u5b8c\u6574\u6b77\u53f2<\/td>\n<td>\u524d\u9762\u5e7e\u8f2a\u7684\u5c0d\u8a71\u7d00\u9304<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5171\u7528 system prompt<\/strong><\/td>\n<td>\u540c\u4e00\u500b\u61c9\u7528\u6240\u6709\u8acb\u6c42\u5171\u7528<\/td>\n<td>\u90a3\u6bb5\u9577\u9577\u7684\u89d2\u8272\u8a2d\u5b9a\uff0f\u898f\u5247<\/td>\n<\/tr>\n<tr>\n<td><strong>\u9577\u6587\u4ef6\u554f\u7b54<\/strong><\/td>\n<td>\u91dd\u5c0d\u540c\u4e00\u4efd\u9577\u6587\u4ef6\u554f\u5f88\u591a\u6b21<\/td>\n<td>\u6574\u4efd\u9577\u6587\u4ef6<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u500b\u76f4\u89ba\u5224\u65b7\u6cd5\uff1a<strong>\u5982\u679c\u4f60\u7684 prompt \u6709\u4e00\u5927\u6bb5\u662f\u300c\u6bcf\u6b21\u90fd\u4e00\u6a23\u3001\u53ea\u6709\u7d50\u5c3e\u5728\u8b8a\u300d\uff0c\u90a3 LMCache \u5c31\u6709\u5f97\u7701\u3002<\/strong> \u53cd\u4e4b\uff0c\u5982\u679c\u6bcf\u500b\u8acb\u6c42\u5f9e\u982d\u5230\u5c3e\u90fd\u4e0d\u4e00\u6a23\uff08\u4f8b\u5982\u7ffb\u8b6f\u4e00\u5806\u4e92\u4e0d\u76f8\u95dc\u7684\u77ed\u53e5\uff09\uff0c\u91cd\u7528\u7387\u4f4e\uff0c\u6548\u76ca\u5c31\u6709\u9650\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">LMCache \u5728\u63a8\u8ad6\u5806\u758a\u7684\u54ea\u4e00\u5c64\uff1f\u8ddf vLLM \u4ec0\u9ebc\u95dc\u4fc2\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u9019\u662f\u6700\u591a\u4eba\u641e\u6df7\u7684\u5730\u65b9\uff0c\u503c\u5f97\u8b1b\u6e05\u695a\u3002<\/p>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\"><span><code class=\"hljs\">   \u4f7f\u7528\u8005\u8acb\u6c42\n       \u2502\n       \u25bc\n \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n \u2502   vLLM\uff08\u63a8\u8ad6\u5f15\u64ce\uff09        \u2502  \u2190 \u8ca0\u8cac\u5be6\u969b\u8dd1\u6a21\u578b\u3001\u751f\u6210 token\n \u2502                         \u2502\n \u2502  \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510  \u2502\n \u2502  \u2502 prefix caching     \u2502  \u2502  \u2190 vLLM \u5167\u5efa\uff1a\u540c\u4e00\u53f0\u6a5f\u5668\u3001\n \u2502  \u2502\uff08\u5f15\u64ce\u5167\u3001\u55ae\u6a5f\uff09     \u2502  \u2502     GPU \u8a18\u61b6\u9ad4\u5167\u7684\u524d\u7db4\u91cd\u7528\n \u2502  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518  \u2502\n \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n             \u2502 \u639b\u4e0a\n             \u25bc\n \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n \u2502   LMCache\uff08KV \u5132\u5b58\u5c64\uff09    \u2502  \u2190 \u628a KV Cache \u5b58\u5230\u66f4\u5927\u3001\n \u2502  GPU\u2192CPU \u8a18\u61b6\u9ad4\u2192\u78c1\u789f\u2192\u9060\u7aef \u2502     \u66f4\u9060\u7684\u5730\u65b9\uff0c\u9084\u80fd\u8de8\u7bc0\u9ede\u5171\u4eab\n \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n<\/code><\/span><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u95dc\u9375\u5340\u5206\uff1avLLM \u5167\u5efa\u7684 prefix caching vs. LMCache<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">vLLM \u81ea\u5df1\u5c31\u6709 <strong>prefix caching<\/strong>\uff1a\u5b83\u6703\u628a\u6700\u8fd1\u7b97\u904e\u7684\u524d\u7db4 KV Cache \u7559\u5728 GPU \u8a18\u61b6\u9ad4\u88e1\uff0c\u540c\u4e00\u53f0\u6a5f\u5668\u4e0a\u9047\u5230\u76f8\u540c\u524d\u7db4\u5c31\u91cd\u7528\u3002\u9019\u5f88\u597d\u7528\uff0c\u4f46\u6709\u5169\u500b\u5929\u82b1\u677f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n\n<li><strong>\u53ea\u5728 GPU \u8a18\u61b6\u9ad4\u88e1<\/strong>\uff1aGPU \u986f\u5b58\u5f88\u8cb4\u5f88\u6709\u9650\uff0c\u5b58\u4e0d\u4e86\u591a\u5c11\uff0c\u4e00\u6eff\u5c31\u88ab\u64e0\u6389\uff08evict\uff09\u3002<\/li>\n\n\n<li><strong>\u53ea\u5728\u55ae\u4e00\u5f15\u64ce\u5167<\/strong>\uff1a\u63db\u4e00\u53f0\u6a5f\u5668\u3001\u63db\u4e00\u500b vLLM \u5be6\u4f8b\uff0c\u5feb\u53d6\u5c31\u7528\u4e0d\u5230\u4e86\u3002<\/li>\n\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>LMCache \u88dc\u7684\u6b63\u662f\u9019\u5169\u584a<\/strong>\uff1a\u5b83\u628a KV Cache \u5f80\u5916\u5ef6\u4f38\u5132\u5b58\u2014\u2014\u5f9e GPU \u8a18\u61b6\u9ad4\uff0c\u4e00\u8def\u53ef\u4ee5\u653e\u5230 CPU \u8a18\u61b6\u9ad4\u3001\u672c\u5730\u78c1\u789f\u3001\u751a\u81f3\u9060\u7aef\u5171\u4eab\u5132\u5b58\u3002\u65bc\u662f\u5feb\u53d6\u80fd\u5b58\u5f97\u66f4\u591a\u3001\u6d3b\u5f97\u66f4\u4e45\uff0c\u9084\u80fd<strong>\u8de8\u7bc0\u9ede\u5171\u4eab<\/strong>\uff08A \u6a5f\u5668\u7b97\u904e\u7684\u524d\u7db4\uff0cB \u6a5f\u5668\u4e5f\u80fd\u76f4\u63a5\u8f09\u5165\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u53e5\u8a71\u7e3d\u7d50\u5169\u8005\u95dc\u4fc2\uff1a<strong>\u4e0d\u662f\u4e8c\u9078\u4e00\uff0c\u800c\u662f\u4e92\u88dc\u3002<\/strong> vLLM \u7684 prefix caching \u662f\u5f15\u64ce\u5167\u7684\u7b2c\u4e00\u5c64\u5feb\u53d6\uff0cLMCache \u662f\u5b83\u5916\u9762\u66f4\u5927\u3001\u66f4\u6301\u4e45\u3001\u53ef\u8de8\u6a5f\u5171\u4eab\u7684\u7b2c\u4e8c\u5c64 KV \u5132\u5b58\u3002\u5be6\u52d9\u4e0a LMCache \u662f\u300c\u639b\u300d\u5728 vLLM \u4e0a\u4e00\u8d77\u7528\u7684\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u6548\u76ca\u6982\u89c0\uff1a\u5230\u5e95\u80fd\u7701\u591a\u5c11\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5148\u5efa\u7acb\u91cf\u7d1a\u6982\u5ff5\uff0c\u5177\u9ad4\u6578\u5b57\u5f8c\u9762\u5e7e\u7bc7\u6703\u5be6\u6e2c\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li><strong>TTFT \u4e0b\u964d<\/strong>\uff1a\u547d\u4e2d\u5feb\u53d6\u6642\uff0c\u7701\u6389\u4e86\u6574\u6bb5\u524d\u7db4\u7684 prefill\u3002\u524d\u7db4\u8d8a\u9577\u3001\u4f54\u6bd4\u8d8a\u9ad8\uff0c\u9996 token \u5ef6\u9072\u6539\u5584\u8d8a\u660e\u986f\u2014\u2014\u9577 context \u5834\u666f\u4e0b\u5e38\u898b\u6578\u500d\u7684\u52a0\u901f\u3002<\/li>\n\n\n<li><strong>GPU \u7b97\u529b\u7bc0\u7701<\/strong>\uff1a\u88ab\u8df3\u904e\u7684 prefill \u5c31\u662f\u7701\u4e0b\u7684\u6d6e\u9ede\u904b\u7b97\u3002\u91cd\u8907\u524d\u7db4\u8d8a\u591a\u7684\u670d\u52d9\uff08\u4f8b\u5982\u5171\u7528 system prompt \u7684\u7dda\u4e0a\u5ba2\u670d\uff09\uff0c\u6574\u9ad4 GPU \u7528\u91cf\u4e0b\u964d\u8d8a\u986f\u8457\u3002<\/li>\n\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f46\u52d9\u5fc5\u8a18\u4f4f\u4e00\u500b\u524d\u63d0\uff1a<strong>\u9019\u4e9b\u6548\u76ca\u90fd\u5efa\u7acb\u5728\u300c\u5feb\u53d6\u547d\u4e2d\u300d\u4e0a\u3002<\/strong> \u6c92\u547d\u4e2d\uff08\u524d\u7db4\u6bcf\u6b21\u90fd\u4e0d\u540c\uff09\uff0cLMCache \u4e0d\u4f46\u5e6b\u4e0d\u4e0a\u5fd9\uff0c\u8f09\u5165\uff0f\u67e5\u627e\u9084\u53ef\u80fd\u5e36\u4f86\u4e00\u9ede\u9ede\u984d\u5916\u958b\u92b7\u3002\u6240\u4ee5\u300c\u4f60\u7684\u6d41\u91cf\u5230\u5e95\u6709\u591a\u5c11\u91cd\u8907\u524d\u7db4\u300d\uff0c\u624d\u662f\u6c7a\u5b9a LMCache \u503c\u4e0d\u503c\u5f97\u7684\u771f\u6b63\u8b8a\u6578\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udea9 \u7d05\u65d7\uff1a\u770b\u5230\u9019\u4e9b\u8aaa\u6cd5\u8981\u8b66\u89ba<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7576 AI \u6216\u67d0\u7bc7\u6587\u7ae0\u8ddf\u4f60\u4ecb\u7d39 LMCache \u6642\uff0c\u4ee5\u4e0b\u5e7e\u7a2e\u8b1b\u6cd5\u8981\u6253\u554f\u865f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>\ud83d\udea9 <strong>\u300c\u88dd\u4e86 LMCache \u4e00\u5b9a\u8b8a\u5feb\u300d<\/strong>\uff1a\u4e0d\u5c0d\u3002\u6c92\u6709\u91cd\u8907\u524d\u7db4\u3001\u5feb\u53d6\u547d\u4e2d\u7387\u4f4e\u7684\u6642\u5019\uff0c\u6548\u76ca\u8da8\u8fd1\u65bc\u96f6\uff0c\u751a\u81f3\u56e0\u70ba\u67e5\u627e\u958b\u92b7\u5c0f\u8f38\u3002\u5148\u554f\u300c\u6211\u7684\u8acb\u6c42\u524d\u7db4\u91cd\u8907\u55ce\uff1f\u300d<\/li>\n\n\n<li>\ud83d\udea9 <strong>\u300cLMCache \u53ef\u4ee5\u53d6\u4ee3 vLLM\u300d<\/strong>\uff1a\u641e\u932f\u5c64\u7d1a\u4e86\u3002LMCache \u662f KV \u5132\u5b58\u5c64\uff0c\u4e0d\u81ea\u5df1\u8dd1\u6a21\u578b\uff1b\u5b83\u662f\u639b\u5728 vLLM \u9019\u985e\u5f15\u64ce\u4e0a\u7528\u7684\uff0c\u4e0d\u662f\u66ff\u4ee3\u54c1\u3002<\/li>\n\n\n<li>\ud83d\udea9 <strong>\u300cKV Cache \u91cd\u7528\u6703\u5f71\u97ff\u56de\u7b54\u6b63\u78ba\u6027\u300d<\/strong>\uff1a\u53ea\u8981\u524d\u7db4 token <strong>\u5b8c\u5168\u76f8\u540c<\/strong>\uff0c\u8f09\u5165\u7684 KV Cache \u5728\u6578\u5b78\u4e0a\u7b49\u50f9\u65bc\u91cd\u7b97\uff0c\u7d50\u679c\u4e00\u81f4\u3002\u8981\u8b66\u89ba\u7684\u662f\u53cd\u4f8b\u2014\u2014\u5982\u679c\u524d\u7db4\u5176\u5be6\u4e0d\u5b8c\u5168\u4e00\u6a23\u537b\u786c\u547d\u4e2d\uff0c\u90a3\u624d\u6703\u51fa\u554f\u984c\uff08\u9019\u662f\u8a2d\u5b9a\u5c64\u9762\u7684\u5751\uff0c\u5f8c\u9762\u7bc7\u7ae0\u8ac7\uff09\u3002<\/li>\n\n\n<li>\ud83d\udea9 <strong>\u300c\u5feb\u53d6\u5b58\u8d8a\u591a\u8d8a\u597d\u300d<\/strong>\uff1a\u5b58\u5230\u78c1\u789f\u6216\u9060\u7aef\u96d6\u7136\u5bb9\u91cf\u5927\uff0c\u4f46\u8f09\u5165\u4e5f\u8981\u6642\u9593\u3002\u7576\u300c\u8f09\u5165 KV\u300d\u6bd4\u300c\u76f4\u63a5\u91cd\u7b97 prefill\u300d\u9084\u6162\u6642\uff0c\u5feb\u53d6\u53cd\u800c\u62d6\u5f8c\u817f\u3002\u7701\u4e0d\u7701\uff0c\u8981\u770b\u524d\u7db4\u9577\u5ea6\u8207\u5132\u5b58\u5c64\u7d1a\u7684\u6b0a\u8861\u3002<\/li>\n\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Vibe Coder \u9a57\u6536\u6aa2\u67e5\u9ede<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u8b80\u5b8c\u9019\u7bc7\uff0c\u4f60\u61c9\u8a72\u80fd\u56de\u7b54\u4e0b\u9762\u5e7e\u500b\u554f\u984c\u3002\u505a\u4e0d\u5230\u5c31\u56de\u53bb\u91cd\u8b80\u5c0d\u61c9\u6bb5\u843d\uff0c\u6216\u76f4\u63a5\u628a\u554f\u984c\u8cbc\u7d66 AI \u554f\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>\u2705 \u7528\u4e00\u53e5\u8a71\u8aaa\u51fa <strong>prefill \u548c decode \u5dee\u5728\u54ea\u3001\u54ea\u500b\u8cb4<\/strong>\uff08\u63d0\u793a\uff1aprefill \u4e00\u6b21\u6027\u3001\u8ddf\u8f38\u5165\u9577\u5ea6\u6210\u6b63\u6bd4\u3001\u6c7a\u5b9a TTFT\uff09\u3002<\/li>\n\n\n<li>\u2705 \u89e3\u91cb <strong>KV Cache \u70ba\u4ec0\u9ebc\u53ef\u4ee5\u88ab\u8de8\u8acb\u6c42\u91cd\u7528<\/strong>\uff08\u63d0\u793a\uff1a\u76f8\u540c\u524d\u7db4 token \u7b97\u51fa\u4f86\u7684 K\/V \u4e00\u6a23\uff09\u3002<\/li>\n\n\n<li>\u2705 \u8b1b\u6e05\u695a <strong>vLLM prefix caching \u548c LMCache \u7684\u5206\u5de5<\/strong>\uff08\u63d0\u793a\uff1a\u5f15\u64ce\u5167\u55ae\u6a5f vs. \u8de8\u5c64\u7d1a\u8de8\u7bc0\u9ede\u7684\u5132\u5b58\uff09\u3002<\/li>\n\n\n<li>\u2705 \u5224\u65b7\u4e00\u500b\u5834\u666f<strong>\u9069\u4e0d\u9069\u5408<\/strong>\u7528 LMCache\uff08\u63d0\u793a\uff1a\u554f\u524d\u7db4\u91cd\u8907\u7387\u9ad8\u4e0d\u9ad8\uff09\u3002<\/li>\n\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u81ea\u6211\u6aa2\u6e2c\u5c0f\u60c5\u5883\uff1a\u5047\u8a2d\u4f60\u5728\u505a\u4e00\u500b\u300c\u5ba2\u670d\u6a5f\u5668\u4eba\u300d\uff0c\u6bcf\u500b\u8acb\u6c42\u90fd\u5e36\u8457\u540c\u4e00\u6bb5 3000 \u5b57\u7684\u516c\u53f8\u653f\u7b56\u7576 system prompt\u3002\u9019\u9069\u5408 LMCache \u55ce\uff1f\uff08\u7b54\u6848\uff1a\u975e\u5e38\u9069\u5408\uff0c\u56e0\u70ba\u90a3 3000 \u5b57\u7684\u524d\u7db4\u6bcf\u6b21\u90fd\u4e00\u6a23\uff0c\u91cd\u7528\u7387\u6975\u9ad8\u3002\uff09<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u770b\u4e0d\u61c2\u5c31\u9019\u6a23\u554f AI<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u628a\u4e0d\u78ba\u5b9a\u7684\u5730\u65b9\u76f4\u63a5\u4e1f\u7d66 AI\uff0c\u9019\u5e7e\u53e5\u53ef\u4ee5\u8907\u88fd\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u300c\u7528\u6700\u767d\u8a71\u89e3\u91cb\uff0cLLM \u63a8\u8ad6\u88e1\u7684 prefill \u548c decode \u5dee\u5728\u54ea\uff1f\u70ba\u4ec0\u9ebc prefill \u6bd4\u8f03\u8cb4\uff1f\u6211\u662f\u521d\u5b78\u8005\u3002\u300d<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u300cvLLM \u5167\u5efa\u7684 prefix caching \u548c LMCache \u6709\u4ec0\u9ebc\u4e0d\u540c\uff1f\u70ba\u4ec0\u9ebc\u8aaa\u5b83\u5011\u662f\u4e92\u88dc\u800c\u4e0d\u662f\u4e8c\u9078\u4e00\uff1f\u300d<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u300c\u6211\u7684\u670d\u52d9\u6bcf\u500b\u8acb\u6c42 prompt \u958b\u982d\u90fd\u4e00\u6a23\u3001\u53ea\u6709\u7d50\u5c3e\u554f\u984c\u4e0d\u540c\uff0c\u7528 KV Cache \u91cd\u7528\u80fd\u7701\u591a\u5c11\uff1f\u5e6b\u6211\u5224\u65b7\u503c\u4e0d\u503c\u5f97\u3002\u300d<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5c0f\u7d50\u8207\u4e0b\u4e00\u7bc7<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u9019\u7bc7\u4f60\u5efa\u7acb\u4e86\u4e09\u500b\u6838\u5fc3\u8a8d\u77e5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n\n<li><strong>\u63a8\u8ad6\u5206\u5169\u6bb5<\/strong>\uff1aprefill \u6602\u8cb4\u4e14\u6c7a\u5b9a TTFT\uff0cdecode \u76f8\u5c0d\u4fbf\u5b9c\uff1bKV Cache \u662f prefill \u7684\u7522\u7269\u3002<\/li>\n\n\n<li><strong>LMCache \u7684\u50f9\u503c<\/strong>\uff1a\u628a\u91cd\u8907\u524d\u7db4\u7684\u300c\u91cd\u7b97\u300d\u8b8a\u6210\u300c\u8f09\u5165\u300d\uff0c\u6838\u5fc3\u53d7\u76ca\u5834\u666f\u662f RAG\u3001\u591a\u8f2a\u5c0d\u8a71\u3001\u5171\u7528 system prompt\u3001\u9577\u6587\u4ef6\u554f\u7b54\u3002<\/li>\n\n\n<li><strong>\u5b83\u7684\u5b9a\u4f4d<\/strong>\uff1a\u4e0d\u662f\u53d6\u4ee3 vLLM\uff0c\u800c\u662f\u639b\u5728\u4e0a\u9762\u3001\u88dc\u8db3\u5f15\u64ce\u5167 prefix caching \u300c\u55ae\u6a5f\u3001\u6613\u88ab\u64e0\u6389\u300d\u9650\u5236\u7684\u8de8\u5c64\u7d1a\uff0f\u8de8\u7bc0\u9ede KV \u5132\u5b58\u5c64\u3002<\/li>\n\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u4e00\u7bc7\uff08#02\uff09\u6211\u5011\u6703\u5be6\u969b\u628a LMCache \u639b\u5230 vLLM \u4e0a\u8dd1\u8d77\u4f86\uff0c\u770b\u5b83\u7684\u8a2d\u5b9a\u9577\u4ec0\u9ebc\u6a23\u3001\u5feb\u53d6\u5b58\u5230\u54ea\u88e1\uff0c\u4e26\u7528\u771f\u5be6\u8acb\u6c42\u9a57\u8b49\u547d\u4e2d\u524d\u5f8c\u7684 TTFT \u5dee\u7570\u3002<\/p>\n\n\n\n<div id=\"quiz-d130b043\">\n<style>\n#quiz-d130b043 .badge {\n        display: inline-block; padding: 4px 10px; border-radius: 12px;\n        font-size: 0.75em; font-weight: bold; margin-left: 8px;\n      }#quiz-d130b043 .badge.scenario { background: #ebf8ff; color: #2b6cb0; }#quiz-d130b043 .badge.debug { background: #fef3c7; color: #92400e; }#quiz-d130b043 .question-adv {\n        background: white; border-radius: 10px; padding: 24px; margin: 20px 0;\n        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08); border-left: 4px solid #ed8936;\n      }#quiz-d130b043 .question-adv h3 { margin-top: 0; color: #2d3748; }#quiz-d130b043 .code-block {\n        background: #1e1e1e; color: #d4d4d4; padding: 14px; border-radius: 6px;\n        font-family: \"Menlo\", \"Monaco\", \"Courier New\", monospace;\n        font-size: 0.9em; overflow-x: auto; margin: 12px 0; white-space: pre-wrap;\n      }#quiz-d130b043 .options-adv { list-style: none; padding: 0; }#quiz-d130b043 .options-adv li {\n        padding: 14px 16px; margin: 10px 0; border: 2px solid #e2e8f0;\n        border-radius: 8px; cursor: pointer; transition: all 0.2s;\n      }#quiz-d130b043 .options-adv li:hover:not(.disabled) { border-color: #ed8936; background: #fffaf0; }#quiz-d130b043 .options-adv li.disabled { cursor: default; opacity: 0.7; }#quiz-d130b043 .options-adv li.show-answer { border-color: #48bb78; background: #f0fff4; }#quiz-d130b043 .options-adv li.wrong { border-color: #fc8181; background: #fff5f5; }#quiz-d130b043 .feedback-adv {\n        margin-top: 16px; padding: 14px; border-radius: 8px; display: none; line-height: 1.6;\n      }#quiz-d130b043 .feedback-adv.correct { background: #f0fff4; color: #276749; display: block; }#quiz-d130b043 .feedback-adv.wrong { background: #fff5f5; color: #c53030; display: block; }#quiz-d130b043 .feedback-adv \n      .score-adv {\n        text-align: center; font-size: 1.4em; padding: 24px; background: white;\n        border-radius: 10px; margin-top: 24px; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);\n      }#quiz-d130b043 .intro { background: #ebf8ff; padding: 16px; border-radius: 8px; margin-bottom: 20px; color: #2c5282; }\n<\/style>\n<h1>\u9032\u968e\u6e2c\u9a57\uff1a\u8a8d\u8b58 LMCache<\/h1>\n    <div class=\"intro\">\n      <strong>\u6e2c\u9a57\u76ee\u6a19\uff1a<\/strong>\u9a57\u8b49\u4f60\u662f\u5426\u80fd\u5728\u5be6\u969b\u60c5\u5883\u4e2d\u61c9\u7528\u6240\u5b78\u3002<br \/>\n      \u5171 5 \u984c\uff0c\u5305\u542b\u60c5\u5883\u984c\u8207\u932f\u8aa4\u8a3a\u65b7\u984c\u3002\n    <\/div>\n\n    <div class=\"question-adv\" id=\"qAdv1\">\n      <h3>1. \u60c5\u5883\u5224\u65b7 <span class=\"badge scenario\">\u60c5\u5883\u984c<\/span><\/h3>\n      <div class=\"code-block\">\u4f60\u5728\u505a\u4e00\u500b\u7dda\u4e0a\u5ba2\u670d\u6a5f\u5668\u4eba\uff1a\u6bcf\u500b\u8acb\u6c42\u90fd\u5e36\u8457\u540c\u4e00\u6bb5 3000 \u5b57\u7684\u516c\u53f8\u653f\u7b56\u7576 system prompt\uff0c\u5f8c\u9762\u624d\u63a5\u4f7f\u7528\u8005\u7576\u4e0b\u7684\u554f\u984c\u3002\u4f60\u60f3\u964d\u4f4e\u4f7f\u7528\u8005\u7b49\u5f85\u7b2c\u4e00\u500b\u5b57\u7684\u6642\u9593\uff08TTFT\uff09\u4e26\u7701 GPU\u3002\u61c9\u8a72\u512a\u5148\u8a55\u4f30\u54ea\u500b\u65b9\u5411\uff1f<\/div>\n      <ul class=\"options-adv\">\n        <li onclick=\"checkAnswerAdv(1, 'A', 'B')\">A. \u63db\u66f4\u5927\u7684\u6a21\u578b\uff0c\u8b93\u5b83\u4e00\u6b21\u7b97\u5b8c\u66f4\u5feb<\/li>\n        <li onclick=\"checkAnswerAdv(1, 'B', 'B')\">B. \u5c0e\u5165 KV Cache \u91cd\u7528\uff08\u5982 LMCache\uff09\uff0c\u628a\u90a3\u6bb5 3000 \u5b57\u524d\u7db4\u5b58\u8d77\u4f86\u91cd\u8907\u8f09\u5165<\/li>\n        <li onclick=\"checkAnswerAdv(1, 'C', 'B')\">C. \u628a system prompt \u6bcf\u6b21\u96a8\u6a5f\u6253\u4e82\u9806\u5e8f\uff0c\u589e\u52a0\u591a\u6a23\u6027<\/li>\n        <li onclick=\"checkAnswerAdv(1, 'D', 'B')\">D. \u95dc\u6389 decode \u968e\u6bb5\u4ee5\u7bc0\u7701\u6642\u9593<\/li>\n      <\/ul>\n      <div class=\"feedback-adv\" id=\"fbAdv1\"><\/div>\n    <\/div>\n\n    <div class=\"question-adv\" id=\"qAdv2\">\n      <h3>2. \u9078\u578b\u6c7a\u7b56 <span class=\"badge scenario\">\u60c5\u5883\u984c<\/span><\/h3>\n      <div class=\"code-block\">\u4f60\u7684 RAG \u670d\u52d9\u76ee\u524d\u8dd1\u5728\u55ae\u4e00 vLLM \u5be6\u4f8b\u4e0a\uff0c\u5df2\u7d93\u958b\u4e86 vLLM \u5167\u5efa prefix caching\u3002\u4f46\u6d41\u91cf\u6210\u9577\u5f8c\u4f60\u64f4\u6210\u591a\u53f0\u6a5f\u5668\uff0c\u767c\u73fe\u540c\u4e00\u4efd\u71b1\u9580\u6587\u4ef6\u7684\u524d\u7db4\u5728\u4e0d\u540c\u6a5f\u5668\u4e0a\u9084\u662f\u5404\u81ea\u91cd\u7b97\u3002\u6700\u5408\u9069\u7684\u4e0b\u4e00\u6b65\u662f\uff1f<\/div>\n      <ul class=\"options-adv\">\n        <li onclick=\"checkAnswerAdv(2, 'A', 'C')\">A. \u95dc\u6389 prefix caching\uff0c\u56e0\u70ba\u5b83\u6c92\u7528<\/li>\n        <li onclick=\"checkAnswerAdv(2, 'B', 'C')\">B. \u628a\u6240\u6709\u6d41\u91cf\u585e\u56de\u55ae\u4e00\u6a5f\u5668\uff0c\u653e\u68c4\u6c34\u5e73\u64f4\u5c55<\/li>\n        <li onclick=\"checkAnswerAdv(2, 'C', 'C')\">C. \u5728 vLLM \u4e0a\u639b LMCache\uff0c\u7528\u53ef\u8de8\u7bc0\u9ede\u5171\u4eab\u7684 KV \u5132\u5b58\u8b93\u591a\u53f0\u6a5f\u5668\u5171\u7528\u524d\u7db4\u5feb\u53d6<\/li>\n        <li onclick=\"checkAnswerAdv(2, 'D', 'C')\">D. \u6539\u7528\u66f4\u77ed\u7684\u6587\u4ef6\uff0c\u8b93\u524d\u7db4\u4e0d\u91cd\u8981<\/li>\n      <\/ul>\n      <div class=\"feedback-adv\" id=\"fbAdv2\"><\/div>\n    <\/div>\n\n    <div class=\"question-adv\" id=\"qAdv3\">\n      <h3>3. \u6548\u76ca\u8a55\u4f30 <span class=\"badge scenario\">\u60c5\u5883\u984c<\/span><\/h3>\n      <div class=\"code-block\">\u540c\u4e8b\u8aaa\uff1a\u300c\u6211\u5011\u7684\u6279\u6b21\u4efb\u52d9\u662f\u628a\u4e00\u842c\u53e5\u5f7c\u6b64\u5b8c\u5168\u7121\u95dc\u7684\u77ed\u53e5\u5404\u81ea\u7ffb\u6210\u82f1\u6587\uff0c\u6bcf\u53e5 prompt \u5f9e\u982d\u5230\u5c3e\u90fd\u4e0d\u540c\u3002\u88dd LMCache \u61c9\u8a72\u80fd\u5927\u5e45\u52a0\u901f\u5427\uff1f\u300d\u4f60\u8a72\u600e\u9ebc\u56de\u61c9\u6700\u6e96\u78ba\uff1f<\/div>\n      <ul class=\"options-adv\">\n        <li onclick=\"checkAnswerAdv(3, 'A', 'A')\">A. \u9019\u7a2e\u524d\u7db4\u91cd\u8907\u7387\u6975\u4f4e\u7684\u5834\u666f\uff0cLMCache \u6548\u76ca\u8da8\u8fd1\u65bc\u96f6\uff0c\u751a\u81f3\u6709\u67e5\u627e\u958b\u92b7\uff0c\u5148\u5225\u6025\u8457\u88dd<\/li>\n        <li onclick=\"checkAnswerAdv(3, 'B', 'A')\">B. \u4e00\u5b9a\u6703\u5feb\u5f88\u591a\uff0c\u56e0\u70ba LMCache \u5c0d\u6240\u6709\u63a8\u8ad6\u90fd\u6709\u6548<\/li>\n        <li onclick=\"checkAnswerAdv(3, 'C', 'A')\">C. \u6703\u5f71\u97ff\u7ffb\u8b6f\u6b63\u78ba\u6027\uff0c\u6240\u4ee5\u4e0d\u80fd\u88dd<\/li>\n        <li onclick=\"checkAnswerAdv(3, 'D', 'A')\">D. \u53ea\u8981\u8f38\u5165\u5920\u77ed\uff0cLMCache \u5c31\u80fd\u81ea\u52d5\u751f\u6210\u5feb\u53d6\u547d\u4e2d<\/li>\n      <\/ul>\n      <div class=\"feedback-adv\" id=\"fbAdv3\"><\/div>\n    <\/div>\n\n    <div class=\"question-adv\" id=\"qAdv4\">\n      <h3>4. \u89c0\u5ff5\u8a3a\u65b7 <span class=\"badge debug\">\u932f\u8aa4\u8a3a\u65b7<\/span><\/h3>\n      <div class=\"code-block\">\u67d0\u4efd\u6280\u8853\u6587\u6848\u5beb\u9053\uff1a\n\u300cLMCache \u662f\u65b0\u4e00\u4ee3\u63a8\u8ad6\u5f15\u64ce\uff0c\u53ef\u4ee5\u5b8c\u5168\u53d6\u4ee3 vLLM\uff0c\n \u81ea\u5df1\u8dd1\u6a21\u578b\u3001\u81ea\u5df1\u751f\u6210 token\uff0c\u6548\u80fd\u66f4\u9ad8\u3002\u300d\n\n\u9019\u6bb5\u63cf\u8ff0\u54ea\u88e1\u6709\u554f\u984c\uff1f<\/div>\n      <ul class=\"options-adv\">\n        <li onclick=\"checkAnswerAdv(4, 'A', 'B')\">A. \u6c92\u554f\u984c\uff0cLMCache \u672c\u4f86\u5c31\u662f\u7368\u7acb\u5f15\u64ce<\/li>\n        <li onclick=\"checkAnswerAdv(4, 'B', 'B')\">B. \u641e\u932f\u5c64\u7d1a\uff1aLMCache \u662f KV \u5132\u5b58\u5c64\uff0c\u4e0d\u81ea\u5df1\u8dd1\u6a21\u578b\uff0c\u662f\u639b\u5728 vLLM \u9019\u985e\u5f15\u64ce\u4e0a\u7528\u7684\uff0c\u4e0d\u662f\u66ff\u4ee3\u54c1<\/li>\n        <li onclick=\"checkAnswerAdv(4, 'C', 'B')\">C. \u554f\u984c\u53ea\u5728\u65bc\u300c\u6548\u80fd\u66f4\u9ad8\u300d\u9019\u53e5\u8a87\u5927\uff0c\u5176\u4ed6\u90fd\u5c0d<\/li>\n        <li onclick=\"checkAnswerAdv(4, 'D', 'B')\">D. LMCache \u5176\u5be6\u6bd4 vLLM \u6162\uff0c\u6240\u4ee5\u4e0d\u8a72\u53d6\u4ee3<\/li>\n      <\/ul>\n      <div class=\"feedback-adv\" id=\"fbAdv4\"><\/div>\n    <\/div>\n\n    <div class=\"question-adv\" id=\"qAdv5\">\n      <h3>5. \u6548\u80fd\u53cd\u5e38\u8a3a\u65b7 <span class=\"badge debug\">\u932f\u8aa4\u8a3a\u65b7<\/span><\/h3>\n      <div class=\"code-block\">\u5718\u968a\u628a KV Cache \u5168\u90e8\u8a2d\u5b9a\u5b58\u5230\u300c\u9060\u7aef\u5171\u4eab\u5132\u5b58\u300d\u4ee5\u8ffd\u6c42\u6700\u5927\u5bb9\u91cf\uff0c\n\u7d50\u679c\u5c0d\u300c\u53ea\u6709\u5e7e\u767e token \u77ed\u524d\u7db4\u300d\u7684\u8acb\u6c42\uff0c\u91cf\u6e2c\u5230\u7684 TTFT \u53cd\u800c\u6bd4\u4e0d\u7528\u5feb\u53d6\u6642\u9084\u9ad8\u3002\n\n\u6700\u53ef\u80fd\u7684\u539f\u56e0\u662f\uff1f<\/div>\n      <ul class=\"options-adv\">\n        <li onclick=\"checkAnswerAdv(5, 'A', 'C')\">A. \u9060\u7aef\u5132\u5b58\u58de\u4e86\uff0c\u8cc7\u6599\u907a\u5931<\/li>\n        <li onclick=\"checkAnswerAdv(5, 'B', 'C')\">B. KV Cache \u91cd\u7528\u4e00\u5b9a\u6703\u964d\u4f4e\u6b63\u78ba\u6027\u9023\u5e36\u62d6\u6162\u901f\u5ea6<\/li>\n        <li onclick=\"checkAnswerAdv(5, 'C', 'C')\">C. \u524d\u7db4\u5f88\u77ed\u6642\uff0c\u5f9e\u9060\u7aef\u300c\u8f09\u5165 KV\u300d\u6bd4\u76f4\u63a5\u91cd\u7b97 prefill \u9084\u6162\uff0c\u5feb\u53d6\u53cd\u800c\u62d6\u5f8c\u817f<\/li>\n        <li onclick=\"checkAnswerAdv(5, 'D', 'C')\">D. \u56e0\u70ba\u6c92\u6709\u540c\u6642\u958b\u555f decode \u968e\u6bb5<\/li>\n      <\/ul>\n      <div class=\"feedback-adv\" id=\"fbAdv5\"><\/div>\n    <\/div>\n\n    <div class=\"score-adv\" id=\"scoreAdv\" style=\"display:none;\"><\/div>\n<script>\n\n      let answeredAdv = 0;\n      let correctAdv = 0;\n      const totalAdv = 5;\n      const explanationsAdv = {\n        1: \"3000 \u5b57\u7684 system prompt \u6bcf\u6b21\u90fd\u4e00\u6a23\uff0c\u662f\u5178\u578b\u9ad8\u91cd\u7528\u524d\u7db4\u3002\u628a\u5b83\u7684 KV Cache \u5b58\u8d77\u4f86\u91cd\u8907\u8f09\u5165\uff0c\u80fd\u8df3\u904e\u5927\u6bb5 prefill\uff0c\u76f4\u63a5\u6539\u5584 TTFT \u4e26\u7701 GPU\u3002\u63db\u5927\u6a21\u578b\u3001\u6253\u4e82\u9806\u5e8f\u3001\u95dc\u6389 decode \u90fd\u4e0d\u5c0d\u75c7\u3002\",\n        2: \"vLLM prefix caching \u53ea\u5728\u55ae\u6a5f GPU \u8a18\u61b6\u9ad4\u5167\uff0c\u8de8\u6a5f\u5668\u5c31\u7528\u4e0d\u5230\u3002LMCache \u63d0\u4f9b\u8de8\u5c64\u7d1a\u3001\u53ef\u8de8\u7bc0\u9ede\u5171\u4eab\u7684 KV \u5132\u5b58\uff0c\u6b63\u597d\u8b93\u591a\u53f0\u6a5f\u5668\u5171\u7528\u540c\u4e00\u4efd\u71b1\u9580\u6587\u4ef6\u7684\u524d\u7db4\u5feb\u53d6\uff0c\u662f\u4e92\u88dc\u800c\u975e\u53d6\u4ee3\u3002\",\n        3: \"LMCache 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\u7684\u6642\u9593\u53ef\u80fd\u8d85\u904e\u76f4\u63a5\u91cd\u7b97 prefill\uff0c\u5feb\u53d6\u53cd\u800c\u8b8a\u6162\u3002\u8981\u4f9d\u524d\u7db4\u9577\u5ea6\u8207\u5132\u5b58\u5c64\u7d1a\u505a\u6b0a\u8861\uff0c\u77ed\u524d\u7db4\u672a\u5fc5\u503c\u5f97\u8d70\u9060\u7aef\u3002\",\n      };\n\n      function checkAnswerAdv(qNum, selected, correctAns) {\n        const question = document.getElementById(\"qAdv\" + qNum);\n        if (question.classList.contains(\"answered\")) return;\n        question.classList.add(\"answered\");\n        answeredAdv++;\n        const options = question.querySelectorAll(\".options-adv li\");\n        options.forEach((opt) => {\n          opt.classList.add(\"disabled\");\n          if (opt.textContent.startsWith(correctAns + \".\")) {\n            opt.classList.add(\"show-answer\");\n          }\n        });\n        const feedback = document.getElementById(\"fbAdv\" + qNum);\n        if (selected === correctAns) {\n          correctAdv++;\n          feedback.className = \"feedback-adv correct\";\n          feedback.innerHTML = \"\u2713 \u6b63\u78ba\uff01\" + explanationsAdv[qNum];\n        } else {\n          feedback.className = \"feedback-adv wrong\";\n          feedback.innerHTML = \"\u2717 \u932f\u8aa4\u3002\u6b63\u78ba\u7b54\u6848\u662f \" + correctAns + \"\u3002\" + explanationsAdv[qNum];\n          options.forEach((opt) => {\n            if (opt.textContent.startsWith(selected + \".\")) {\n              opt.classList.add(\"wrong\");\n            }\n          });\n        }\n        if (answeredAdv === totalAdv) {\n          const scoreDiv = document.getElementById(\"scoreAdv\");\n          scoreDiv.style.display = \"block\";\n          let msg = \"\";\n          if (correctAdv === totalAdv) msg = \"\ud83c\udfaf \u5b8c\u7f8e\uff01\u4f60\u5df2\u7d93\u6e96\u5099\u597d\u5be6\u6230\u4e86\uff01\";\n          else if (correctAdv >= Math.ceil(totalAdv * 0.8)) msg = \"\ud83d\udcaa 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[&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rolpb_likes":0,"footnotes":""},"categories":[908],"tags":[863,860,870,909,847],"class_list":["post-854","post","type-post","status-publish","format-standard","hentry","category-lmcache","tag-kv-cache","tag-llm","tag-lmcache","tag-ttft","tag-vllm"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":7}},"_links":{"self":[{"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/posts\/854","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/comments?post=854"}],"version-history":[{"count":1,"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/posts\/854\/revisions"}],"predecessor-version":[{"id":866,"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/posts\/854\/revisions\/866"}],"wp:attachment":[{"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/media?parent=854"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/categories?post=854"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/tags?post=854"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}