{"id":118388,"date":"2026-10-27T04:16:28","date_gmt":"2026-10-26T20:16:28","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/118388.html"},"modified":"2026-10-27T04:16:28","modified_gmt":"2026-10-26T20:16:28","slug":"07-06-%e6%ba%90%e7%a0%81-net-core-gc%e7%9a%84%e6%9e%81%e8%87%b4%e4%bc%98%e5%8c%96%e6%8a%80%e6%9c%af","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/118388.html","title":{"rendered":"07-06-\u6e90\u7801-.NET Core GC\u7684\u6781\u81f4\u4f18\u5316\u6280\u672f"},"content":{"rendered":"

.NET Core GC \u7684\u6781\u81f4\u4f18\u5316\u6280\u672f<\/h2>\n

\u7bc7\u7ae0：07-\u6e90\u7801\u6df1\u5ea6-.NET Core GC |\u00a0\u9605\u8bfb\u65f6\u95f4：\u7ea6 40 \u5206\u949f<\/p>\n

\n

\u4e00\u3001\u5f15\u8a00<\/h3>\n

.NET Core GC \u7684\u6781\u81f4\u6027\u80fd\u4e0d\u4ec5\u6765\u81ea\u9ad8\u7ea7\u7b97\u6cd5，\u8fd8\u6765\u81ea\u5927\u91cf\u5e95\u5c42\u7684\u5fae\u4f18\u5316\u6280\u672f\u3002\u6bcf\u9879\u5fae\u4f18\u5316\u5355\u72ec\u770b\u53ef\u80fd\u53ea\u63d0\u5347 1-5%，\u4f46\u7d2f\u79ef\u8d77\u6765\u4ea7\u751f\u4e86\u5de8\u5927\u7684\u6027\u80fd\u4f18\u52bf\u3002\u8fd9\u53e5\u8bdd\u70b9\u51fa\u4e86\u672c\u6587\u7684\u4e3b\u89d2：\u4e0d\u662f\u5206\u4ee3\u3001\u538b\u7f29\u8fd9\u4e9b"\u8bba\u6587\u7ea7"\u7684\u8bbe\u8ba1，\u800c\u662f\u628a\u865a\u62df\u5185\u5b58\u63a5\u53e3\u3001CPU \u7f13\u5b58\u3001NUMA \u62d3\u6251\u3001\u7ebf\u7a0b\u8c03\u5ea6\u9010\u4e00\u69a8\u5e72\u7684\u5de5\u7a0b\u624b\u6bb5\u3002<\/p>\n

\u4e3a\u4ec0\u4e48\u4e00\u4e2a GC \u9700\u8981\u5173\u5fc3 2MB \u5927\u9875\u3001CPU \u7ed1\u6838\u63a9\u7801\u548c\u00a0fallocate\u00a0\u8fd9\u79cd\u7cfb\u7edf\u8c03\u7528\u5c42\u9762\u7684\u7ec6\u8282？\u56e0\u4e3a GC \u662f\u8fdb\u7a0b\u91cc\u6700\u91cd\u7684\u5185\u5b58\u6d88\u8d39\u8005\u4e0e\u6700\u9891\u7e41\u7684\u5168\u5c40\u540c\u6b65\u70b9，\u5b83\u6bcf\u6b21\u6807\u8bb0\u3001\u6bcf\u6bb5\u5206\u914d\u90fd\u8981\u78b0\u5185\u5b58\u5b50\u7cfb\u7edf：TLB \u672a\u547d\u4e2d\u3001\u8de8 NUMA \u8bbf\u95ee\u3001\u9875\u8868\u66f4\u65b0，\u8fd9\u4e9b\u5fae\u79d2\u7ea7\u7684\u4ee3\u4ef7\u4e58\u4e0a\u51e0\u5341 GB \u5806\u4e0a\u7684\u4ebf\u6b21\u8bbf\u95ee，\u5c31\u662f\u53ef\u89c2\u6d4b\u7684\u6682\u505c\u5dee\u3002\u7b97\u6cd5\u5c42\u9762\u5927\u5bb6\u90fd\u4f1a\u5199\u6807\u8bb0-\u6e05\u626b，\u80dc\u8d1f\u6070\u6070\u5728\u8fd9\u79cd"\u64cd\u4f5c\u7cfb\u7edf\u63a5\u53e3\u3001CPU \u6307\u4ee4\u96c6\u3001\u5185\u5b58\u7ba1\u7406\u786c\u4ef6"\u7684\u6253\u78e8\u4e0a\u5206\u51fa\u6765\u3002\u8fd9\u4e5f\u662f\u539f\u7a3f\u7ed9\u51fa\u7684\u5224\u65ad：.NET Core GC \u5728 Server \u573a\u666f\u4e0b\u63a5\u8fd1 C++ \u624b\u52a8\u7ba1\u7406\u7684\u5185\u5b58\u6548\u7387，\u9760\u7684\u6b63\u662f\u8fd9\u4e9b\u4e0d\u5728\u8bba\u6587\u6458\u8981\u91cc\u7684\u4e1c\u897f\u3002<\/p>\n

\u672c\u6587\u6309"\u5168\u666f\u3001\u5185\u5b58\u5c42\u3001\u62d3\u6251\u5c42\u3001\u5206\u914d\u5c42\u3001\u9884\u7b97\u5c42\u3001\u914d\u7f6e\u3001\u89c2\u6d4b\u3001\u5fae\u4f18\u5316\u3001\u53e3\u5f84\u3001\u6a2a\u5411\u5bf9\u6bd4\u3001\u51b3\u7b56\u6e05\u5355"\u7684\u987a\u5e8f\u5c55\u5f00：\u5148\u7528\u4e00\u5f20\u7ed3\u6784\u56fe\u628a\u4f18\u5316\u70b9\u5206\u5c42（\u7b2c\u4e8c\u8282），\u518d\u9010\u5c42\u62c6\u6bb5\u9884\u6620\u5c04\u3001\u5927\u9875\u3001NUMA \u4e0e\u7ed1\u6838\u3001\u591a\u5806\u4e0e GC \u611f\u77e5\u5206\u914d\u3001Gen0 \u9884\u7b97\u81ea\u9002\u5e94（\u7b2c\u4e09\u5230\u4e03\u8282），\u968f\u540e\u7ed9\u51fa\u914d\u7f6e\u9879\u5168\u666f\u4e0e\u89c2\u6d4b\u624b\u6bb5（\u7b2c\u516b\u3001\u4e5d\u8282），\u63a5\u7740\u8d70\u8bfb\u9884\u53d6\u4e0e\u6bb5\u63d0\u4ea4\u4e24\u5904\u4ee3\u7801（\u7b2c\u5341\u8282），\u6700\u540e\u7edf\u4e00\u8bf4\u660e\u91cf\u5316\u6570\u636e\u7684\u53e3\u5f84\u3001\u4e0e\u5176\u4ed6\u8fd0\u884c\u65f6\u7684\u5bf9\u6bd4，\u4ee5\u53ca\u4e00\u5f20"\u539f\u7406 \u2192 \u6536\u76ca \u2192 \u9002\u7528 \u2192 \u5c40\u9650"\u7684\u51b3\u7b56\u8868（\u7b2c\u5341\u4e00\u5230\u5341\u4e09\u8282）\u3002\u540e\u53f0 GC \u7684\u72b6\u6001\u673a\u4e0d\u5728\u672c\u6587\u5c55\u5f00，\u53ea\u5728\u9700\u8981\u5904\u4e00\u53e5\u8bdd\u56de\u6307 07-05\u3002<\/p>\n

\u4e8c\u3001\u4f18\u5316\u5168\u666f：\u4e00\u5f20\u5206\u5c42\u7ed3\u6784\u56fe<\/h3>\n

\u628a\u6563\u843d\u7684\u4f18\u5316\u70b9\u6309"\u79bb\u786c\u4ef6\u591a\u8fd1"\u6392\u6210\u4e94\u5c42，\u5f7c\u6b64\u7684\u5173\u7cfb\u4e00\u76ee\u4e86\u7136：<\/p>\n

.NET Core GC \u4f18\u5316\u70b9\u7ed3\u6784\u56fe（\u5206\u5c42\u793a\u610f，\u975e\u5b8c\u6574\u679a\u4e3e）<\/p>\n

\u250c\u2500 \u7b2c\u4e94\u5c42：\u53ef\u89c2\u6d4b\u6027\u4e0e\u914d\u7f6e \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\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
\n\u2502 runtimeconfig \/ DOTNET_GC* \u73af\u5883\u53d8\u91cf \u00b7 PerfView \u00b7 GC \u65e5\u5fd7 \u2502
\n\u2502 \u2514 \u4f5c\u7528：\u8ba9\u524d\u9762\u56db\u5c42"\u662f\u5426\u751f\u6548"\u53ef\u88ab\u9a8c\u8bc1（\u7b2c\u4e5d\u8282） \u2502
\n\u251c\u2500 \u7b2c\u56db\u5c42：\u9884\u7b97\u4e0e\u7b97\u6cd5\u81ea\u9002\u5e94 \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\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524
\n\u2502 Gen0 \u9884\u7b97\u6309\u5b58\u6d3b\u7387\u56de\u5199 \u00b7 \u6bb5\u7f13\u5b58\u590d\u7528 \u00b7 \u664b\u5347\u7b56\u7565 \u2502
\n\u2502 \u2514 \u4f5c\u7528：\u8ba9\u56de\u6536\u9891\u7387\u81ea\u52a8\u6b63\u6bd4\u4e8e\u5206\u914d\u901f\u7387（\u7b2c\u4e03\u8282） \u2502
\n\u251c\u2500 \u7b2c\u4e09\u5c42：\u5206\u914d\u8def\u5f84\u7684\u5e76\u53d1\u5316 \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\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524
\n\u2502 \u5206\u914d\u4e0a\u4e0b\u6587（TLAB \u5f0f\u7a97\u53e3）\u00b7 \u591a\u7ea7\u6bb5\u7f13\u5b58 \u00b7 GC \u611f\u77e5\u7684\u5206\u914d\u5165\u53e3 \u2502
\n\u2502 \u2514 \u4f5c\u7528：99% \u4ee5\u4e0a\u7684\u5206\u914d\u65e0\u9501\u5b8c\u6210（\u7b2c\u516d\u8282，\u91cf\u7ea7\u4e3a\u793a\u4f8b\u53e3\u5f84） \u2502
\n\u251c\u2500 \u7b2c\u4e8c\u5c42：\u62d3\u6251\u611f\u77e5 \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\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524
\n\u2502 Server \u591a\u5806 \u00b7 GC \u7ebf\u7a0b\u7ed1\u6838 \u00b7 CPU \u5206\u7ec4\u4eb2\u548c \u00b7 NUMA \u672c\u5730\u5206\u914d \u2502
\n\u2502 \u2514 \u4f5c\u7528：\u8ba9 GC \u7ebf\u7a0b\u4e0e\u5b83\u7ba1\u7684\u5185\u5b58\u5728"\u540c\u4e00\u7247\u7845"\u4e0a（\u7b2c\u4e94\u8282） \u2502
\n\u251c\u2500 \u7b2c\u4e00\u5c42：\u5185\u5b58\u7ba1\u7406\u4e0e OS \u63a5\u53e3 \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\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524
\n\u2502 \u6bb5\u9884\u63d0\u4ea4\/\u9884\u6620\u5c04 \u00b7 \u5927\u9875(2MB) \u00b7 \u96f6\u62f7\u8d1d\u6bb5\u63d0\u4ea4 \u00b7 \u6807\u8bb0\u671f\u9884\u53d6 \u2502
\n\u2502 \u2514 \u4f5c\u7528：\u644a\u8584\u6bcf\u4e00\u6b21\u89e6\u9875\u3001\u6bcf\u4e00\u6b21 TLB \u67e5\u8be2\u7684\u6210\u672c（\u4e09\u3001\u56db\u3001\u5341\u8282） \u2502
\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\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\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518
\n \u8bfb\u6cd5：\u4e0b\u5c42\u662f\u4e0a\u5c42\u7684\u5730\u57fa\u2014\u2014\u6ca1\u6709\u591a\u5806（\u4e8c\u5c42），\u7ed1\u6838\u6ca1\u6709\u5bf9\u8c61；
\n \u6ca1\u6709\u5206\u914d\u7a97\u53e3（\u4e09\u5c42），\u9884\u7b97\u518d\u51c6\u4e5f\u538b\u4e0d\u4f4f\u6162\u8def\u5f84\u3002<\/p>\n

\u8fd9\u5f20\u56fe\u8fd8\u6709\u4e00\u6761\u91cd\u8981\u7684\u9605\u8bfb\u89c4\u5219：\u5c42\u4e0e\u5c42\u4e4b\u95f4\u5b58\u5728\u4f9d\u8d56\u3002\u591a\u5806\u662f\u7ed1\u6838\u7684\u524d\u63d0，\u7ed1\u6838\u662f NUMA \u4eb2\u548c\u7684\u524d\u63d0，\u5206\u914d\u7a97\u53e3\u7684\u5b58\u5728\u8ba9\u9884\u7b97\u5c42\u53ea\u9700\u8981\u5728\u6162\u8def\u5f84\u4e0a\u8bb0\u8d26\u3002\u6240\u4ee5\u540e\u6587\u6bcf\u4e00\u8282\u90fd\u4f1a\u5148\u4ea4\u4ee3"\u5b83\u7ad9\u5728\u8c01\u7684\u80a9\u8180\u4e0a"，\u907f\u514d\u628a\u4e00\u9879\u4f18\u5316\u5b64\u7acb\u5730\u8bfb\u6210\u94f6\u5f39\u3002<\/p>\n

\u4e09\u3001\u6bb5\u9884\u63d0\u4ea4\u4e0e\u865a\u62df\u5730\u5740\u9884\u6620\u5c04<\/h3>\n

3.1 \u539f\u7406<\/h4>\n

GC \u5411\u64cd\u4f5c\u7cfb\u7edf\u8981\u5185\u5b58\u8d70\u4e24\u9636\u6bb5：Reserve \u5360\u4f4f\u865a\u62df\u5730\u5740\u8303\u56f4，Commit \u628a\u7269\u7406\u9875\u771f\u6b63\u63a5\u4e0a\u3002\u6309\u9700\u63d0\u4ea4\u7684\u6734\u7d20\u505a\u6cd5\u662f\u6bcf\u6b21\u6269\u5f20\u6bb5\u90fd\u73b0\u505a\u4e00\u6b21\u7cfb\u7edf\u8c03\u7528，\u5206\u914d\u70ed\u8def\u5f84\u4e0a\u591a\u4e00\u6b21\u5185\u6838\u5207\u6362，\u4ee3\u4ef7\u662f\u5fae\u79d2\u7ea7，\u644a\u5230\u9891\u7e41\u6269\u5f20\u7684\u5806\u4e0a\u5c31\u5f88\u663e\u773c\u3002\u6bb5\u9884\u6620\u5c04（pre-reserve \/ pre-commit，\u539f\u7a3f\u79f0"\u6bb5\u9884\u6620\u5c04"）\u7684\u505a\u6cd5\u662f\u542f\u52a8\u6216\u6269\u5f20\u65f6\u4e00\u6b21\u6027\u9884\u7559\u5e76\u9884\u6620\u5c04\u591a\u5757\u6bb5，\u540e\u7eed\u5206\u914d\u76f4\u63a5\u5728\u5df2\u6620\u5c04\u8303\u56f4\u5185\u8d70\u7528\u6237\u6001\u6307\u9488\u63a8\u8fdb，\u4e0d\u518d\u89e6\u53d1\u00a0VirtualAlloc\/mmap\u3002\u539f\u7a3f\u8fd8\u63d0\u5230\u9884\u6620\u5c04\u6570\u91cf\u57fa\u4e8e\u5386\u53f2\u6570\u636e\u9884\u6d4b\u2014\u2014\u8fd9\u4e0e\u8fd0\u884c\u65f6\u4fdd\u7559\u6bb5\u7f13\u5b58（\u56de\u6536\u6389\u7684\u6bb5\u5148\u4e0d\u8fd8\u7ed9\u7cfb\u7edf\u3001\u7559\u7ed9\u4e0b\u8f6e\u590d\u7528）\u662f\u540c\u4e00\u6761\u601d\u8def\u7684\u4e24\u4e2a\u73af\u8282：\u4e00\u4e2a\u7701"\u8981\u5730\u5740"，\u4e00\u4e2a\u7701"\u8fd8\u4e86\u518d\u8981"\u3002<\/p>\n

\u4ece\u7cfb\u7edf\u7f16\u7a0b\u7684\u89d2\u5ea6\u770b，\u8fd9\u9879\u4f18\u5316\u6ca1\u6709\u78b0 GC \u7b97\u6cd5\u4e00\u884c\u4ee3\u7801，\u5b83\u6539\u53d8\u7684\u662f"GC \u4e0e\u5185\u6838\u7684\u5bf9\u8bdd\u6b21\u6570"\u3002\u8fd9\u6b63\u662f\u7b2c\u4e00\u5c42\u4f18\u5316\u7684\u5171\u6027：\u8d62\u5728\u63a5\u53e3\u8fb9\u754c，\u4e0d\u5728\u7b97\u6cd5\u3002<\/p>\n

3.2 \u6536\u76ca\u3001\u9002\u7528\u4e0e\u5c40\u9650<\/h4>\n

\u6536\u76ca\u7684\u6765\u6e90\u662f\u7cfb\u7edf\u8c03\u7528\u6b21\u6570\u4e0b\u964d\u4e0e\u7f3a\u9875\u4e2d\u65ad\u524d\u79fb（\u9884\u6620\u5c04\u628a\u89e6\u9875\u6210\u672c\u632a\u5230\u542f\u52a8\u6216\u4f4e\u5cf0\u671f），\u539f\u7a3f\u7ed9\u51fa\u7684\u53e3\u5f84\u662f\u6bb5\u9884\u6620\u5c04\u5355\u9879\u5e26\u6765\u7ea6 -8% \u7684\u6682\u505c\u964d\u4f4e（\u793a\u4f8b\u91cf\u7ea7，16 \u6838 64GB Web API \u573a\u666f，\u975e\u5b9e\u6d4b\u5e38\u6570，\u89c1\u7b2c\u5341\u4e00\u8282\u7684\u53e3\u5f84\u8bf4\u660e）\u3002\u5b83\u5bf9\u5206\u914d\u901f\u7387\u9ad8\u3001\u6bb5\u6269\u5f20\u9891\u7e41\u7684\u5806\u6700\u6709\u6548；\u6bb5\u6269\u5f20\u672c\u6765\u5c31\u5c11\u7684\u670d\u52a1，\u8fd9\u9879\u4f18\u5316\u51e0\u4e4e\u6ca1\u6709\u843d\u70b9\u3002<\/p>\n

\u5c40\u9650\u6709\u4e24\u6761\u3002\u5176\u4e00，\u9884\u7559\u7684\u662f\u865a\u62df\u5730\u5740\u7a7a\u95f4\u800c\u975e\u7269\u7406\u5185\u5b58，\u8fdb\u7a0b\u7684\u5730\u5740\u7a7a\u95f4\u5360\u7528\u4e0a\u5347，\u5728\u5730\u5740\u7a7a\u95f4\u7d27\u5f20\u7684 32 \u4f4d\u8fdb\u7a0b\u6216\u5f00\u4e86\u5927\u91cf\u5b50\u8fdb\u7a0b\u7684\u5bbf\u4e3b\u91cc\u8981\u514b\u5236\u3002\u5176\u4e8c，\u9884\u6620\u5c04\u7b56\u7565\u4f9d\u8d56\u8fd0\u884c\u65f6\u5bf9"\u63a5\u4e0b\u6765\u8981\u591a\u5c11\u6bb5"\u7684\u5224\u65ad，\u5224\u65ad\u5931\u51c6\u8981\u4e48\u767d\u5360\u5730\u5740\u3001\u8981\u4e48\u8fd8\u662f\u56de\u9000\u5230\u6309\u9700\u63d0\u4ea4\u2014\u2014\u5b83\u4f18\u5316\u7684\u662f\u547d\u4e2d\u65f6\u7684\u5feb\u8def\u5f84，\u515c\u5e95\u8def\u5f84\u4ecd\u7136\u5b58\u5728\u3002<\/p>\n

\u56db\u3001\u5927\u9875（Large Page \/ Huge Page）\u652f\u6301<\/h3>\n

4.1 \u539f\u7406<\/h4>\n

\u5e38\u89c4\u9875\u662f 4KB，\u4e00\u4e2a 1GB \u7684\u5806\u9700\u8981\u51e0\u5341\u4e07\u6761\u9875\u8868\u9879，\u7a0b\u5e8f\u6bcf\u8bbf\u95ee\u4e00\u4e2a\u65b0\u9875\u90fd\u53ef\u80fd\u67e5\u4e00\u6b21 TLB（\u5730\u5740\u8f6c\u6362\u7f13\u5b58），TLB \u5bb9\u91cf\u6709\u9650，\u5806\u4e00\u5927\u5c31\u9891\u7e41\u672a\u547d\u4e2d\u3002\u5927\u9875\u628a\u9875\u7c92\u5ea6\u63d0\u5230 2MB（Windows \u79f0 Large Pages，Linux \u79f0 Huge Pages），\u540c\u6837 1GB \u53ea\u9700 512 \u4e2a\u9875\u8868\u9879，TLB \u8986\u76d6\u8303\u56f4\u6269\u5927\u7ea6 500 \u500d（\u6309 4KB \u5bf9 2MB \u8ba1\u7b97\u7684\u7b97\u672f\u6bd4\u503c，\u975e\u5b9e\u6d4b\u52a0\u901f\u6bd4），\u5806\u8fd9\u79cd"\u5927\u5757\u8fde\u7eed\u3001\u968f\u673a\u8bbf\u95ee"\u7684\u8d1f\u8f7d\u6536\u76ca\u76f4\u63a5\u3002\u539f\u7a3f\u7684\u91cf\u5316\u53e3\u5f84\u662f"\u51cf\u5c11 TLB miss，\u63d0\u5347\u5185\u5b58\u8bbf\u95ee\u6548\u7387\u7ea6 30%"，\u8fd9\u662f\u793a\u4f8b\u91cf\u7ea7\u800c\u975e\u5b9e\u6d4b\u5e38\u6570，\u5b9e\u9645\u53d6\u51b3\u4e8e\u5806\u5927\u5c0f\u3001\u8bbf\u95ee\u5c40\u90e8\u6027\u4e0e\u786c\u4ef6 TLB \u89c4\u683c\u3002<\/p>\n

\u4ee3\u7801\u5165\u53e3\u4fdd\u7559\u539f\u6587：<\/p>\n

\/\/ \u542f\u7528\u5927\u9875\u9762
\nGCSettings.LargePages = true; \/\/ .NET 5+<\/p>\n

\u89e3\u8bfb：\u8fd9\u4e00\u884c\u662f\u8fdb\u7a0b\u7ea7\u5f00\u5173，\u8fd0\u884c\u65f6\u636e\u6b64\u5728\u7533\u8bf7\u5806\u5185\u5b58\u65f6\u6539\u7528\u5927\u9875\u9875\u8868\u3002\u8bfb\u5b83\u8981\u6ce8\u610f\u4e09\u70b9\u3002\u7b2c\u4e00，\u5b83\u662f\u7533\u8bf7，\u4e0d\u662f\u4fdd\u8bc1\u2014\u2014Windows \u4e0a\u542f\u7528\u5927\u9875\u901a\u5e38\u8fd8\u9700\u8981\u8fdb\u7a0b\u5177\u5907\u9501\u5b9a\u5185\u5b58\u7684\u6743\u9650（SeLockMemoryPrivilege \u4e00\u7c7b\u7684\u7279\u6743），Linux \u4e0a\u8981\u9884\u5148\u914d\u7f6e\u597d huge pages \u6c60，\u6743\u9650\u6216\u6c60\u4e0d\u8db3\u65f6\u8fd0\u884c\u65f6\u4f1a\u9759\u9ed8\u9000\u56de 4KB \u9875，\u4ee3\u7801\u4e0d\u62a5\u9519\u3001\u6536\u76ca\u6d88\u5931\u3002\u7b2c\u4e8c，\u5927\u9875\u662f\u7ed9\u6574\u4e2a\u5806\u7528\u7684，\u4e0d\u53ea\u7ed9 GC，\u4f46 GC \u7ba1\u7684\u5806\u5f80\u5f80\u5360\u8fdb\u7a0b\u5185\u5b58\u7684\u5927\u5934，\u6240\u4ee5\u5f00\u5173\u7684\u6548\u679c\u96c6\u4e2d\u4f53\u73b0\u5728 GC \u505c\u987f\u4e0a\u3002\u7b2c\u4e09，\u5b83\u7684\u6210\u672c\u662f\u7269\u7406\u5185\u5b58\u788e\u7247\u4e0e\u8fd0\u7ef4\u590d\u6742\u5ea6：2MB \u65e0\u6cd5\u5f52\u8fd8\u7ed9\u64cd\u4f5c\u7cfb\u7edf\u7684\u7a7a\u95f2\u5927\u9875，\u6bd4 4KB \u9875\u66f4"\u786c"，\u5185\u5b58\u5403\u7d27\u7684\u5bb9\u5668\u91cc\u8981\u5148\u7b97\u8fd9\u7b14\u8d26\u3002<\/p>\n

4.2 \u6536\u76ca\u3001\u9002\u7528\u4e0e\u5c40\u9650<\/h4>\n

\u9002\u7528\u573a\u666f\u6309\u6536\u76ca\u6392\u5e8f：\u5927\u5806（GB \u7ea7）\u4e14\u5185\u5b58\u5bcc\u4f59\u7684\u7269\u7406\u673a\u3001\u5ef6\u8fdf\u654f\u611f\u7684\u6570\u636e\u5e93\u578b\u6216\u4ea4\u6613\u578b\u670d\u52a1\u3001GC \u505c\u987f\u91cc"\u6807\u8bb0\u626b\u63cf\u968f\u673a\u89e6\u9875"\u5360\u5927\u5934\u7684\u8d1f\u8f7d\u3002\u5c40\u9650\u96c6\u4e2d\u5728\u8fd0\u7ef4\u4fa7：\u9700\u8981\u7279\u6743\u4e0e\u9884\u7559\u6c60\u3001\u5bb9\u5668\u5185\u914d\u7f6e\u66f4\u9ebb\u70e6\u3001\u5185\u5b58\u7d27\u5f20\u65f6\u53cd\u800c\u653e\u5927\u788e\u7247\u3002\u5c0f\u5806\u670d\u52a1\u5f00\u5927\u9875\u5c5e\u4e8e\u628a\u8fd0\u7ef4\u6210\u672c\u82b1\u5728\u4e0d\u5b58\u5728\u7684\u95ee\u9898\u4e0a\u2014\u2014\u51e0\u767e MB \u7684\u5806\u672c\u6765\u5c31\u88c5\u5f97\u8fdb TLB \u7684\u8212\u9002\u533a\u3002<\/p>\n

\u4e94\u3001NUMA \u611f\u77e5\u3001CPU \u5206\u7ec4\u4eb2\u548c\u4e0e\u591a\u5806\u7ed1\u6838<\/h3>\n

5.1 \u539f\u7406<\/h4>\n

\u591a\u8def\u670d\u52a1\u5668\u4e0a\u6bcf\u4e2a CPU \u63d2\u69fd\u6709\u672c\u5730\u5185\u5b58，\u8bbf\u95ee\u672c\u5730\u5185\u5b58\u5feb\u3001\u8de8\u63d2\u69fd\u8bbf\u95ee\u8fdc\u7aef\u5185\u5b58\u6162\u3002\u539f\u7a3f\u7ed9\u7684\u5dee\u8ddd\u662f 2-3 \u500d（\u5178\u578b\u4f30\u7b97，\u968f\u4e92\u8fde\u62d3\u6251\u4e0e\u8d1f\u8f7d\u53d8\u5316，\u975e\u5b9e\u6d4b\u5e38\u6570）\u3002Server GC \u6a21\u5f0f\u4e0b\u6bcf\u4e2a\u5806\u914d\u4e00\u4e2a GC \u7ebf\u7a0b，\u5982\u679c\u5806\u7684\u5185\u5b58\u5728\u63d2\u69fd A\u3001GC \u7ebf\u7a0b\u5374\u8dd1\u5728\u63d2\u69fd B \u7684\u6838\u4e0a，\u6bcf\u6b21\u6807\u8bb0\u90fd\u5728\u4ed8\u8de8 NUMA \u7684\u5e26\u5bbd\u4e0e\u5ef6\u8fdf\u7f5a\u6b3e\u3002NUMA \u611f\u77e5\u7684\u6bb5\u5206\u914d\u5c31\u662f\u8ba9\u6bcf\u4e2a\u5806\u7684\u6bb5\u5c3d\u91cf\u5206\u914d\u5728\u5b83\u5bf9\u5e94 CPU \u7684\u672c\u5730\u5185\u5b58\u4e0a，\u914d\u5408\u7ed1\u6838，\u628a"\u7ebf\u7a0b\u2014\u6838\u2014\u5185\u5b58"\u9489\u6210\u4e00\u7ec4\u3002<\/p>\n

\u7ed1\u6838\u672c\u8eab\u901a\u8fc7\u7ebf\u7a0b\u4eb2\u548c\u63a9\u7801\u5b9e\u73b0（Windows \u4e0b\u5373\u539f\u7a3f\u63d0\u5230\u7684\u00a0SetThreadAffinityMask\u00a0\u4e00\u7c7b\u63a5\u53e3），.NET \u7528\u00a0DOTNET_GCHeapAffinitizeMask\u00a0\u6307\u5b9a GC \u7ebf\u7a0b\u4e0e\u5806\u843d\u5728\u54ea\u4e9b\u6838\u4e0a，DOTNET_GCNoAffinitize\u00a0\u5173\u95ed\u7ed1\u6838\u6539\u7531\u64cd\u4f5c\u7cfb\u7edf\u8c03\u5ea6\u3002\u66f4\u9ad8\u4e00\u5c42\u662f CPU \u5206\u7ec4（CPU group）：Windows \u5355\u7ec4\u6700\u591a 64 \u4e2a\u903b\u8f91\u5904\u7406\u5668，\u8d85\u8fc7 64 \u6838\u7684\u673a\u5668\u88ab\u62c6\u6210\u591a\u7ec4，\u8fd0\u884c\u65f6\u5bf9\u7ec4\u8fb9\u754c\u7684\u5904\u7406\u51b3\u5b9a\u4e86\u5806\u6570\u4e0e\u7ed1\u6838\u63a9\u7801\u80fd\u4e0d\u80fd\u8986\u76d6\u5168\u90e8\u6838\u2014\u2014\u8fd9\u662f"GC \u4eb2\u548c\u63a9\u7801\u7b97\u9519"\u7c7b\u95ee\u9898\u7684\u9ad8\u53d1\u533a，\u914d\u7f6e\u65f6\u8981\u6309\u7ec4\u5c55\u5f00\u8ba1\u7b97，\u4e0d\u80fd\u60f3\u5f53\u7136\u7528\u4e00\u5f20 64 \u4f4d\u63a9\u7801\u76d6\u8fc7\u53bb\u3002<\/p>\n

\u539f\u7a3f\u63d0\u5230 .NET 8+ \u81ea\u52a8\u68c0\u6d4b NUMA \u62d3\u6251\u5e76\u4f18\u5316\u6bb5\u5206\u914d\u3002\u81ea\u52a8\u8def\u5f84\u4e4b\u5916\u4ecd\u5efa\u8bae\u663e\u5f0f\u914d\u7f6e\u7684\u573a\u5408\u662f\u5bb9\u5668\u4e0e\u865a\u62df\u673a：vCPU \u7684\u62d3\u6251\u53ef\u80fd\u4e0e\u7269\u7406\u673a\u4e0d\u4e00\u81f4，\u8fd0\u884c\u65f6\u6309\u5bb9\u5668\u53ef\u89c1\u7684\u6838\u6570\u521d\u59cb\u5316，\u8d85\u51fa\u914d\u989d\u7684\u5806\u6570\u4e0e\u9519\u8bef\u7684\u63a9\u7801\u90fd\u4f1a\u76f4\u63a5\u53cd\u6620\u5728 GC \u505c\u987f\u4e0a（\u914d\u7f6e\u5bf9\u9f50\u7684\u505a\u6cd5\u53c2\u89c1 03-05 \u7b2c\u516b\u8282）\u3002<\/p>\n

5.2 \u6536\u76ca\u3001\u9002\u7528\u4e0e\u5c40\u9650<\/h4>\n

\u6536\u76ca\u7ed3\u6784\u662f"\u51cf\u5c11\u8de8\u63d2\u69fd\u8bbf\u5b58 + \u51cf\u5c11\u6838\u95f4\u8fc1\u79fb\u5bfc\u81f4\u7684\u7f13\u5b58\u5931\u6548"，\u539f\u7a3f\u57fa\u51c6\u8868\u7ed9 CPU \u4eb2\u548c\u7ed1\u6838\u5355\u9879 -15%（\u793a\u4f8b\u91cf\u7ea7，16 \u6838 64GB Web API，\u975e\u5b9e\u6d4b\u5e38\u6570）\u3002\u9002\u7528：\u591a\u8def\u7269\u7406\u673a\u300164 \u6838\u4ee5\u4e0a\u7684\u5355\u673a\u3001Server GC \u5e38\u9a7b\u7684\u670d\u52a1\u3002\u5c40\u9650\u6709\u4e09：\u7ed1\u6838\u628a GC \u7ebf\u7a0b\u9489\u6b7b，\u4e0e\u4e1a\u52a1\u7ebf\u7a0b\u62a2\u540c\u4e00\u7ec4\u6838\u65f6\u53cd\u800c\u5236\u9020\u7ade\u4e89，\u6240\u4ee5\u63a9\u7801\u8981\u7ed9 GC \u7559\u4e13\u7528\u6838\u6216\u81f3\u5c11\u907f\u5f00\u4e1a\u52a1\u70ed\u70b9\u6838；\u5bb9\u5668\u91cc\u6838\u4f1a\u88ab\u5bbf\u4e3b\u673a\u8c03\u5ea6\u8fc1\u79fb，\u786c\u7ed1\u6838\u53ef\u80fd\u5236\u9020\u7b49\u5f85，\u4f4e\u6838\u5bb9\u5668\u5e38\u7528\u00a0DOTNET_GCNoAffinitize\u00a0\u5173\u6389；CPU \u5206\u7ec4\u8fb9\u754c\u4e0e\u63a9\u7801\u4f4d\u5bbd\u8981\u9010\u6bb5\u6838\u5bf9，\u914d\u9519\u7684\u63a9\u7801\u6bd4\u4e0d\u914d\u66f4\u7cdf\u3002<\/p>\n

\u516d\u3001\u591a\u5806\u4e0e GC \u611f\u77e5\u7684\u5206\u914d\u8def\u5f84<\/h3>\n

6.1 \u5206\u914d\u7a97\u53e3：\u5e76\u53d1\u7684\u7b2c\u4e00\u9053\u5730\u57fa<\/h4>\n

\u7b2c\u4e09\u5c42\u7684\u4e3b\u89d2\u662f\u5206\u914d\u4e0a\u4e0b\u6587\u2014\u2014\u6bcf\u4e2a\u6258\u7ba1\u7ebf\u7a0b\u72ec\u5360\u4e00\u6bb5 bump \u5206\u914d\u7a97\u53e3，\u7a97\u53e3\u5185\u5206\u914d\u53ea\u505a\u6307\u9488\u52a0\u6cd5，\u65e0\u9501\u3001\u65e0\u904d\u5386（07-02 \u5df2\u9010\u884c\u62c6\u8fc7\u5feb\u6162\u8def\u5f84，\u672c\u6587\u53ea\u8c08\u5b83\u4f5c\u4e3a\u4f18\u5316\u5730\u57fa\u7684\u610f\u4e49）\u3002\u539f\u7a3f"\u7ebf\u7a0b\u5c40\u90e8\u7f13\u5b58\u7684\u6781\u81f4\u4f18\u5316"\u4e00\u8282\u7ed9\u51fa\u7684\u591a\u7ea7\u7ed3\u6784\u53ef\u4ee5\u6982\u62ec\u6210\u4e00\u5f20\u5206\u5c42\u547d\u4e2d\u8868：<\/p>\n\n\u5c42\u7ea7\u547d\u4e2d\u7387（\u539f\u7a3f\u53e3\u5f84）\u8bf4\u660e\u53e3\u5f84\u6807\u6ce8<\/tr>\n\n\n\n\n\n
\u7ebf\u7a0b\u5c40\u90e8\u7a97\u53e3（TLAB \u5f0f）<\/td>\n>99.9%<\/td>\n\u6307\u9488\u52a0\u6cd5\u76f4\u63a5\u5b8c\u6210，\u5b8c\u5168\u65e0\u9501<\/td>\n\u793a\u4f8b\u91cf\u7ea7，\u975e\u5b9e\u6d4b\u5e38\u6570<\/td>\n<\/tr>\n
L1 \u6bb5\u7f13\u5b58<\/td>\n~90%<\/td>\n\u7ebf\u7a0b\u7a97\u53e3\u7528\u5c3d\u540e\u5148\u95ee\u672c\u7ebf\u7a0b\u7f13\u5b58\u7684\u6bb5<\/td>\n\u793a\u4f8b\u91cf\u7ea7<\/td>\n<\/tr>\n
L2 \u6bb5\u7f13\u5b58<\/td>\n~8%<\/td>\n\u518d\u95ee\u5806\u7ea7\u7f13\u5b58\u7684\u7a7a\u95f2\u6bb5<\/td>\n\u793a\u4f8b\u91cf\u7ea7<\/td>\n<\/tr>\n
\u5168\u5c40\u6bb5\u7ba1\u7406<\/td>\n<0.1%<\/td>\n\u6700\u540e\u624d\u8d70\u5168\u5c40\u9501\u4e0e\u5411\u7cfb\u7edf\u8981\u5185\u5b58<\/td>\n\u793a\u4f8b\u91cf\u7ea7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u539f\u7a3f\u7684\u7ed3\u8bba"99.9% \u5206\u914d\u5728 TLAB \u5185\u65e0\u9501\u5b8c\u6210，\u8fd9\u662f Server GC \u9ad8\u5e76\u53d1\u4e0b\u7ebf\u6027\u6269\u5c55\u7684\u5173\u952e"\u6210\u7acb，\u4e14\u5b83\u89e3\u91ca\u4e86\u591a\u5806\u4f18\u5316\u7684\u610f\u4e49：\u7ebf\u7a0b\u7a97\u53e3\u4e4b\u4e0a\u8fd8\u6709\u6bb5\u7f13\u5b58，\u6bb5\u7f13\u5b58\u4e4b\u4e0a\u624d\u662f\u5168\u5c40\u6bb5\u7ba1\u7406，\u7edd\u5927\u591a\u6570\u5206\u914d\u6839\u672c\u8d70\u4e0d\u5230\u9700\u8981\u548c GC \u534f\u8c03\u7684\u90a3\u4e00\u6b65\u3002Server \u591a\u5806\u628a\u8fd9\u6761\u94fe\u8def\u518d\u5207\u77ed\u2014\u2014\u6bcf\u4e2a\u6838\u7684\u7ebf\u7a0b\u4e3b\u8981\u7528\u672c\u5806\u7684\u6bb5，\u8fde\u8de8\u5806\u534f\u8c03\u90fd\u7701\u4e86\u3002\u8bfb\u8fd9\u5f20\u8868\u8981\u7559\u4e2a\u5fc3\u773c：\u56db\u5c42\u547d\u4e2d\u7387\u6765\u81ea\u539f\u7a3f\u7684\u793a\u4f8b\u91cf\u7ea7，\u4e0d\u540c\u8d1f\u8f7d\u5dee\u5f02\u5f88\u5927，\u771f\u5b9e\u5206\u5e03\u8981\u7528\u5206\u914d\u6162\u8def\u5f84\u7684\u91c7\u6837\u6570\u636e\u6821\u51c6，\u522b\u62ff\u5b83\u5f53\u9a8c\u6536\u6307\u6807\u3002<\/p>\n

6.2 GC \u611f\u77e5\u7684\u5206\u914d<\/h4>\n

\u539f\u7a3f\u7684"GC \u611f\u77e5\u7684\u5206\u914d"\u8bb2\u7684\u662f\u5206\u914d\u5165\u53e3\u4e0e GC \u72b6\u6001\u7684\u63e1\u624b：JIT \u5728\u5206\u914d\u4ee3\u7801\u4e2d\u63d2\u5165\u68c0\u67e5\u70b9，GC \u8fdb\u884c\u671f\u95f4\u5206\u914d\u8d70\u5b89\u5168\u8def\u5f84，\u907f\u514d\u5728 GC \u6267\u884c\u8fc7\u7a0b\u4e2d\u8bef\u89e6\u53d1\u65b0\u7684\u56de\u6536\u6216\u4e0e\u4e4b\u62a2\u5360\u5806\u5143\u6570\u636e\u3002\u8fd9\u4e2a\u63cf\u8ff0\u5bf9\u5e94\u7684\u662f\u8fd0\u884c\u65f6\u91cc\u5206\u914d\u6162\u8def\u5f84\u4e0e GC \u72b6\u6001\u6807\u5fd7\u7684\u540c\u6b65\u2014\u2014\u5206\u914d\u662f\u552f\u4e00\u80fd"\u53eb\u9192"GC \u7684\u65e5\u5e38\u52a8\u4f5c，\u5982\u679c\u5b83\u5728 GC \u6b63\u5fd9\u65f6\u9192\u6765，\u8981\u4e48\u7b49\u5f85\u3001\u8981\u4e48\u8d70\u91cd\u8bd5，\u7edd\u4e0d\u80fd\u4e24\u4e2a\u56de\u6536\u540c\u65f6\u6539\u5806\u3002\u5bf9\u5e94\u7528\u5f00\u53d1\u8005，\u8fd9\u6761\u673a\u5236\u7684\u5b9e\u9645\u610f\u4e49\u662f：\u5206\u914d\u7684\u6162\u8def\u5f84\u5728 GC \u671f\u95f4\u4f1a\u53d8\u6162\u3002\u6240\u4ee5"GC \u671f\u95f4\u4e0d\u8981\u5728\u70ed\u5faa\u73af\u91cc\u5206\u914d"\u4e0d\u53ea\u662f\u5c11\u9020\u5783\u573e，\u4e5f\u662f\u5c11\u649e\u8fd9\u6b21\u63e1\u624b\u3002<\/p>\n

\u628a\u5b83\u548c\u540e\u53f0 GC \u653e\u5728\u4e00\u8d77\u770b（\u72b6\u6001\u673a\u7ec6\u8282\u89c1 07-05）：\u540e\u53f0\u6807\u8bb0\u671f\u95f4，\u524d\u53f0\u5206\u914d\u7167\u5e38\u8d70\u7a97\u53e3，\u53ea\u6709\u7a97\u53e3\u8017\u5c3d\u624d\u843d\u5230\u6162\u8def\u5f84，\u6162\u8def\u5f84\u518d\u6309\u5f53\u524d GC \u72b6\u6001\u51b3\u5b9a\u7533\u8bf7\u65b0\u7a97\u53e3\u3001\u8981\u65b0\u6bb5\u8fd8\u662f\u89e6\u53d1\u56de\u6536\u3002\u4e09\u5c42\u5224\u65ad\u5c42\u5c42\u9012\u8fdb，\u4efb\u4f55\u4e00\u5c42\u7684\u8bbe\u8ba1\u76ee\u6807\u90fd\u662f\u8ba9\u70ed\u8def\u5f84\u5c11\u9047\u89c1 GC\u3002<\/p>\n

6.3 \u6536\u76ca\u3001\u9002\u7528\u4e0e\u5c40\u9650<\/h4>\n

\u5206\u914d\u5c42\u4f18\u5316\u7684\u6536\u76ca\u4e0d\u4f53\u73b0\u5728\u6682\u505c\u4e0a，\u4f53\u73b0\u5728\u541e\u5410\u4e0e\u6269\u5c55\u6027\u4e0a：\u5206\u914d\u4e0d\u6392\u961f，\u591a\u6838\u624d\u80fd\u7ebf\u6027\u52a0\u538b\u3002\u9002\u7528\u573a\u666f\u662f\u5206\u914d\u901f\u7387\u9ad8\u7684\u6240\u6709 .NET \u670d\u52a1，\u5b83\u6ca1\u6709"\u4e0d\u8be5\u7528"\u7684\u573a\u666f，\u53ea\u6709\u914d\u7f6e\u9519\u7684\u573a\u666f\u2014\u2014\u6700\u5178\u578b\u7684\u662f Server GC \u4e0e\u5806\u6570\u4e0d\u5339\u914d（1 \u5230 2 \u6838\u5bb9\u5668\u5f00 Server\u3001\u6216 64 \u6838\u673a\u5668\u4e0d\u914d HeapCount），\u8ba9\u591a\u5806\u7684\u4f18\u52bf\u53d8\u6210\u5185\u5b58\u6d6a\u8d39\u3002\u5c40\u9650\u5728\u4e8e\u8fd9\u5957\u7a97\u53e3\u4e0e\u7f13\u5b58\u7684\u5b58\u5728\u611f\u53ea\u5728\u6162\u8def\u5f84\u66b4\u9732：\u5982\u679c\u4f60\u7684\u5806\u91cc 90% \u662f LOH \u5927\u5bf9\u8c61，\u5206\u914d\u6839\u672c\u7ed5\u5f00\u7a97\u53e3\u8d70\u72ec\u7acb\u8def\u5f84，\u8fd9\u4e00\u5c42\u4f18\u5316\u5bf9\u4f60\u5c31\u6240\u5269\u65e0\u51e0\u3002<\/p>\n

\u4e03\u3001Gen0 \u9884\u7b97\u81ea\u9002\u5e94<\/h3>\n

7.1 \u539f\u7406<\/h4>\n

GC \u4ec0\u4e48\u65f6\u5019\u89e6\u53d1，\u4e0d\u662f\u5b9a\u65f6\u5668\u51b3\u5b9a\u7684，\u662f\u9884\u7b97\u51b3\u5b9a\u7684：\u6bcf\u4e2a\u4ee3\u6709\u4e00\u4efd\u5206\u914d\u9884\u7b97，\u82b1\u5149\u5373\u56de\u6536，\u56de\u6536\u540e\u6309\u4e0a\u4e00\u8f6e\u7684\u5b58\u6d3b\u7387\u56de\u5199\u4e0b\u6b21\u9884\u7b97\u2014\u2014\u5b58\u6d3b\u591a\u8bf4\u660e\u5bf9\u8c61\u6bd4\u9884\u60f3\u7684\u957f\u5bff，\u5c31\u628a\u9884\u7b97\u8c03\u5c0f\u8ba9\u4e0b\u6b21\u56de\u6536\u6765\u5f97\u66f4\u65e9；\u5b58\u6d3b\u5c11\u5c31\u8c03\u5927，\u628a\u56de\u6536\u95f4\u9694\u62c9\u957f\u3002\u8fd9\u5957\u56de\u5199\u673a\u5236\u5c31\u662f\u9884\u7b97\u5c42\u7684\u81ea\u9002\u5e94，\u5b83\u8ba9\u56de\u6536\u9891\u7387\u81ea\u52a8\u6b63\u6bd4\u4e8e\u5206\u914d\u901f\u7387，\u4e0d\u9700\u8981\u4eba\u5de5\u8c03\u5468\u671f，\u4e5f\u81ea\u52a8\u9002\u5e94\u8d1f\u8f7d\u7684\u9636\u6bb5\u6027\u53d8\u5316（\u5927\u4e16\u754c\u52a0\u8f7d\u671f\u5206\u914d\u731b\u3001\u6218\u6597\u671f\u5206\u914d\u7f13，\u9884\u7b97\u8ddf\u7740\u8d70）\u3002<\/p>\n

\u5206\u4ee3\u4e4b\u95f4\u7684\u8054\u52a8\u662f\u5b83\u7684\u53e6\u4e00\u534a：Gen0 \u56de\u6536\u7684\u5e78\u5b58\u8005\u8fdb Gen1，Gen1 \u9884\u7b97\u51b3\u5b9a"\u664b\u5347\u8fc7\u6ee4\u5668"\u7684\u677e\u7d27，Gen2 \u9884\u7b97\u5219\u7531\u5b58\u6d3b\u96c6\u89c4\u6a21\u4e0e\u538b\u7f29\u6536\u76ca\u5171\u540c\u51b3\u5b9a\u3002\u4efb\u4f55\u4e00\u4ee3\u7684\u9884\u7b97\u5931\u8861\u90fd\u4f1a\u5411\u4e0a\u6e38\u4f20\u5bfc\u2014\u2014Gen0 \u9884\u7b97\u8fc7\u5927，\u5355\u6b21\u56de\u6536\u53d8\u8d35；\u8fc7\u5c0f，\u56de\u6536\u9891\u7e41\u3001\u664b\u5347\u538b\u529b\u5927\u3002\u539f\u7a3f\u628a\u8fd9\u9879\u5355\u5217\u6210\u4f18\u5316\u70b9，\u7406\u7531\u6b63\u662f\u5b83\u7528\u7edf\u8ba1\u53cd\u9988\u66ff\u4ee3\u4e86\u9759\u6001\u53c2\u6570，\u5c5e\u4e8e"\u4e0d\u9700\u8981\u8fd0\u7ef4\u53c2\u4e0e"\u7684\u90a3\u7c7b\u81ea\u9002\u5e94\u3002<\/p>\n

7.2 \u6536\u76ca\u3001\u9002\u7528\u4e0e\u5c40\u9650<\/h4>\n

\u6536\u76ca\u662f\u7a33\u6001\u4e0b\u5206\u914d\u901f\u7387\u4e0e\u56de\u6536\u9891\u7387\u7684\u81ea\u52a8\u5339\u914d，\u7701\u6389\u4e00\u6b21\u4e00\u6b21\u538b\u6d4b\u8c03\u53c2\u3002\u9002\u7528：\u8d1f\u8f7d\u6709\u5468\u671f\u6027\u53d8\u5316\u7684\u670d\u52a1（\u8fd9\u6070\u662f\u9759\u6001\u53c2\u6570\u6700\u4e0d\u64c5\u957f\u7684）\u3002\u5c40\u9650\u6709\u4e8c：\u53cd\u9988\u4f9d\u8d56\u5386\u53f2\u5b58\u6d3b\u7387，\u8d1f\u8f7d\u7a81\u53d8\u7684\u77ac\u95f4\u5b83\u8981\u82b1\u4e00\u5230\u4e24\u8f6e\u56de\u6536\u624d\u80fd\u8ddf\u4e0a，\u7a81\u53d8\u671f\u4f1a\u51fa\u73b0\u9891\u7387\u504f\u9ad8\u6216\u504f\u4f4e\u7684\u6296\u52a8；\u9884\u7b97\u53ea\u5bf9 SOH \u5206\u4ee3\u6709\u6548，LOH \u7684\u5927\u5bf9\u8c61\u5206\u914d\u4e0d\u8d70\u8fd9\u5957\u8bb0\u8d26，\u5927\u5bf9\u8c61\u4e3b\u5bfc\u7684\u8d1f\u8f7d\u8981\u53e6\u770b（07-04 \u8bb2\u8fc7\u7684 LOH \u788e\u7247\u4e0e\u663e\u5f0f\u538b\u7f29）\u3002<\/p>\n

\u516b\u3001GC \u914d\u7f6e\u9879\u5168\u666f<\/h3>\n

\u524d\u9762\u6240\u6709\u5c42\u90fd\u7559\u4e86\u914d\u7f6e\u65cb\u94ae\u3002\u4ee5 runtimeconfig \u7684\u5f62\u5f0f\u96c6\u4e2d\u5217\u51fa（\u9879\u76ee\u6587\u4ef6\u5c5e\u6027\u3001\u73af\u5883\u53d8\u91cf\u4e24\u79cd\u5199\u6cd5\u4e0e\u4e4b\u7b49\u4ef7，\u5bb9\u5668\u90e8\u7f72\u63a8\u8350\u73af\u5883\u53d8\u91cf）：<\/p>\n

{
\n "runtimeOptions": {
\n "configProperties": {
\n "System.GC.Server": true,
\n "System.GC.Concurrent": true,
\n "System.GC.HeapCount": 8,
\n "System.GC.NoAffinitize": false,
\n "System.GC.RetainVM": false
\n }
\n }
\n}<\/p>\n

\u9010\u9879\u89e3\u8bfb：System.GC.Server\u00a0\u5207\u591a\u5806\u5e76\u884c，\u662f\u7b2c\u4e8c\u5c42\u62d3\u6251\u611f\u77e5\u7684\u603b\u5f00\u5173；System.GC.Concurrent\u00a0\u662f\u540e\u53f0 GC \u7684\u5f00\u5173，\u76f4\u63a5\u51b3\u5b9a Gen2 \u56de\u6536\u8d70\u5e76\u53d1\u8fd8\u662f\u963b\u585e（\u540e\u53f0\u72b6\u6001\u673a\u672c\u8eab\u89c1 07-05，\u6b64\u5904\u4e0d\u5c55\u5f00）；System.GC.HeapCount\u00a0\u663e\u5f0f\u6307\u5b9a\u5806\u6570，\u5bb9\u5668\u91cc\u5fc5\u987b\u4e0e CPU \u914d\u989d\u5bf9\u9f50，\u5426\u5219\u591a\u5806\u7684\u5e76\u884c\u6536\u76ca\u53d8\u6210\u5185\u5b58\u4e0e\u5e26\u5bbd\u7684\u6d6a\u8d39；System.GC.NoAffinitize\u00a0\u5173\u95ed\u7ed1\u6838，\u6838\u4f1a\u88ab\u8fc1\u79fb\u7684\u5bb9\u5668\u91cc\u5e38\u4e0e\u5c0f HeapCount \u642d\u914d；System.GC.RetainVM\u00a0\u63a7\u5236\u56de\u6536\u540e\u7684\u6bb5\u662f\u5426\u8fde\u865a\u62df\u5730\u5740\u4e5f\u5f52\u8fd8，\u5f71\u54cd\u7684\u662f\u6bb5\u9884\u6620\u5c04\u4e0e\u6bb5\u7f13\u5b58\u7684\u6fc0\u8fdb\u7a0b\u5ea6\u3002\u914d\u7f6e\u672c\u8eab\u6ca1\u6709\u4f18\u52a3，\u53ea\u6709"\u548c\u90e8\u7f72\u73af\u5883\u5339\u4e0d\u5339\u914d"\u2014\u201403-05 \u7b2c\u516b\u8282\u7ed9\u8fc7\u5224\u65ad\u8868，\u672c\u6587\u53ea\u8865\u5145\u5b83\u4e0e\u5404\u4f18\u5316\u5c42\u7684\u5bf9\u5e94\u5173\u7cfb：\u6bcf\u4e2a\u952e\u80cc\u540e\u90fd\u7ad9\u7740\u524d\u9762\u67d0\u4e00\u5c42\u7684\u4e00\u6bb5\u539f\u7406\u3002<\/p>\n

\u4e0e\u4e4b\u914d\u5957\u7684\u8fd0\u884c\u65f6\u5f00\u5173\u8fd8\u6709\u00a0DOTNET_GCHeapAffinitizeMask（\u7ed1\u6838\u63a9\u7801，\u7b2c\u4e94\u8282）\u3001DOTNET_GCConcurrent（\u540e\u53f0\u5f00\u5173\u7684\u73af\u5883\u53d8\u91cf\u5199\u6cd5）\u3001DOTNET_GCNoAffinitize（\u5173\u95ed\u7ed1\u6838）\u3002\u547d\u540d\u89c4\u5f8b\u662f runtimeconfig \u952e\u53bb\u6389\u00a0System.GC.\u00a0\u524d\u7f00\u52a0\u00a0DOTNET_\u00a0\u524d\u7f00，\u914d\u7f6e\u9519\u4e86\u8981\u4e24\u5904\u90fd\u67e5：\u952e\u62fc\u9519\u4e0d\u4f1a\u62a5\u9519，\u8fdb\u7a0b\u7167\u5e38\u542f\u52a8，\u53ea\u662f\u6240\u6709\u4f18\u5316\u9ed8\u9ed8\u5931\u6548\u2014\u2014\u6240\u4ee5\u542f\u52a8\u65e5\u5fd7\u6253\u5370\u00a0GCSettings.IsServerGC\u3001LatencyMode\u00a0\u662f\u5fc5\u987b\u52a8\u4f5c\u3002<\/p>\n

\u4e5d\u3001\u53ef\u89c2\u6d4b\u6027：GC \u65e5\u5fd7\u4e0e\u5806\u53ef\u89c6\u5316<\/h3>\n

\u4f18\u5316\u6ca1\u751f\u6548\u7b49\u4e8e\u6ca1\u505a，\u8fd9\u4e00\u5c42\u7684\u4f5c\u7528\u662f\u7ed9\u524d\u56db\u5c42\u88c5\u4eea\u8868\u3002\u4e09\u7c7b\u624b\u6bb5\u6309\u7c92\u5ea6\u6392\u5f00：<\/p>\n\n\u624b\u6bb5\u80fd\u770b\u5230\u4ec0\u4e48\u5bf9\u5e94\u54ea\u5c42\u4f18\u5316<\/tr>\n\n\n\n\n
PerfView \/ ETW GC \u4e8b\u4ef6<\/td>\n\u6bcf\u8f6e\u56de\u6536\u7684\u4ee3\u6570\u3001blocking \u4e0e background\u3001\u9636\u6bb5\u8017\u65f6\u3001\u5206\u914d\u901f\u7387<\/td>\n\u540e\u53f0 GC\u3001\u9884\u7b97\u5c42<\/td>\n<\/tr>\n
dotnet-counters \u5b9e\u65f6\u8ba1\u6570\u5668<\/td>\n\u5806\u5927\u5c0f\u3001\u56de\u6536\u6b21\u6570\u3001\u5de5\u4f5c\u96c6\u7684\u8d8b\u52bf\u659c\u7387<\/td>\n\u9884\u7b97\u5c42\u3001\u6bb5\u9884\u6620\u5c04<\/td>\n<\/tr>\n
GC \u65e5\u5fd7\u4e0e GCHeapStats \u7c7b\u4e8b\u4ef6<\/td>\n\u5404\u4ee3\u5b58\u6d3b\u91cf\u3001\u664b\u5347\u91cf\u3001\u6bb5\u4e0e\u4ee3\u7684\u5730\u5740\u8303\u56f4\u53d8\u5316<\/td>\n\u6bb5\u7ba1\u7406\u3001\u5927\u9875\u751f\u6548\u60c5\u51b5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u539f\u7a3f\u7279\u522b\u70b9\u540d PerfView \u652f\u6301，\u539f\u56e0\u662f\u5b83\u628a ETW \u7684 GC \u4e8b\u4ef6\u505a\u6210\u4e86\u53ef\u4ea4\u4e92\u7684\u5806\u89c6\u56fe\u4e0e\u65f6\u95f4\u7ebf：\u4e00\u6b21\u56de\u6536\u524d\u540e\u7684\u5b58\u6d3b\u96c6\u5bf9\u6bd4\u3001\u5206\u914d\u76f4\u65b9\u56fe\u3001\u6bb5\u8303\u56f4\u53d8\u5316\u90fd\u80fd\u76f4\u63a5\u770b\u56fe，\u4e0d\u9700\u8981\u81ea\u5df1\u89e3\u6790\u4e8b\u4ef6\u6d41\u3002\u5b9e\u7528\u987a\u5e8f\u5efa\u8bae\u662f"\u5148\u8d8b\u52bf\u540e\u7ec6\u8282"：dotnet-counters \u770b\u5230\u56de\u6536\u9891\u7387\u6216\u5806\u6c34\u4f4d\u5f02\u5e38，\u518d\u4e0a PerfView \u6293\u4e00\u6bb5\u4e8b\u4ef6\u5b9a\u4f4d\u662f\u54ea\u4e00\u4ee3\u3001\u54ea\u79cd\u6a21\u5f0f\u3001\u54ea\u4e2a\u9636\u6bb5\u53d8\u6162，\u6700\u540e\u624d\u52a8\u914d\u7f6e\u9a8c\u8bc1\u2014\u2014\u6bcf\u6539\u4e00\u4e2a\u952e\u8dd1\u4e00\u8f6e\u540c\u6837\u7684\u573a\u666f，\u8ba9\u524d\u540e\u4e8b\u4ef6\u6d41\u53ef\u5bf9\u6bd4，\u8fd9\u662f\u914d\u7f6e\u7c7b\u4f18\u5316\u552f\u4e00\u53ef\u4fe1\u7684\u9a8c\u6536\u65b9\u5f0f\u3002<\/p>\n

\u5927\u9875\u4e0e\u7ed1\u6838\u7684\u751f\u6548\u9a8c\u8bc1\u5355\u72ec\u8bf4\u4e00\u53e5：\u5b83\u4eec\u4e0d\u53d1\u6258\u7ba1\u5c42\u4e8b\u4ef6，\u8981\u5230\u64cd\u4f5c\u7cfb\u7edf\u4fa7\u770b（Windows \u4efb\u52a1\u7ba1\u7406\u5668\/\u6027\u80fd\u76d1\u89c6\u5668\u91cc\u7684\u5927\u9875\u8ba1\u5165\u3001Linux \u4e0a\u770b\u9875\u5927\u5c0f\u4e0e\u7ebf\u7a0b\u4eb2\u548c\u72b6\u6001）\u3002\u8fd9\u7c7b"\u4ee3\u7801\u6ca1\u62a5\u9519\u4f46\u6ca1\u751f\u6548"\u7684\u4f18\u5316，\u5fc5\u987b\u6709\u7cfb\u7edf\u4fa7\u7684\u786e\u8ba4\u6b65\u9aa4\u624d\u7b97\u95ed\u73af\u3002<\/p>\n

\u5341\u3001\u9884\u53d6\u4e0e\u6bb5\u63d0\u4ea4：\u4e24\u5904\u4ee3\u7801\u7ea7\u5fae\u4f18\u5316<\/h3>\n

10.1 \u6807\u8bb0\u671f\u7684\u6570\u636e\u9884\u53d6（Data Prefetch）<\/h4>\n

\u539f\u7a3f\u7684\u5224\u65ad\u662f：\u6807\u8bb0\u9636\u6bb5\u904d\u5386\u5bf9\u8c61\u56fe\u65f6，\u8bbf\u95ee\u5bf9\u8c61\u524d\u63d0\u524d\u628a\u5b83\u52a0\u8f7d\u8fdb CPU \u7f13\u5b58，\u80fd\u663e\u8457\u51cf\u5c11\u7f13\u5b58\u672a\u547d\u4e2d\u3002\u4fdd\u7559\u539f\u6587\u4ee3\u7801：<\/p>\n

\/\/ \u7b80\u5316\u4f2a\u4ee3\u7801 \/ \u793a\u610f：\u6807\u8bb0\u65f6\u7684\u9884\u53d6\u4f18\u5316
\nvoid MarkObject(Object* obj) {
\n \/\/ \u5728\u6807\u8bb0 obj \u4e4b\u524d，\u9884\u53d6 obj \u5f15\u7528\u7684\u7b2c\u4e00\u4e2a\u5bf9\u8c61
\n if (obj->first_ref != NULL) {
\n __builtin_prefetch(obj->first_ref, 0, 3); \/\/ \u8bfb\u9884\u53d6，\u9ad8\u5c40\u90e8\u6027
\n }
\n \/\/ \u6807\u8bb0 obj
\n SetMarked(obj);
\n}<\/p>\n

\u9010\u6bb5\u89e3\u8bfb：\u8fd9\u6bb5\u662f\u7b80\u5316\u4f2a\u4ee3\u7801\u3001\u793a\u610f\u6027\u8d28，\u4e0d\u662f\u9010\u5b57\u6e90\u7801\u2014\u2014\u771f\u5b9e\u8fd0\u884c\u65f6\u7684\u9884\u53d6\u63d2\u5165\u4f4d\u7f6e\u3001\u6307\u4ee4\u9009\u62e9\u4e0e\u9000\u907f\u7b56\u7565\u968f\u5e73\u53f0\u548c\u7248\u672c\u53d8\u5316，__builtin_prefetch\u00a0\u662f\u4e3a\u4e86\u8868\u8fbe"\u8bfb\u9884\u53d6\u3001\u9ad8\u5c40\u90e8\u6027\u63d0\u793a"\u7684\u7f16\u8bd1\u5668\u5185\u5efa\u5199\u6cd5\u3002\u9010\u884c\u770b：if (obj->first_ref != NULL)\u00a0\u5728\u53d6\u5f15\u7528\u524d\u5148\u5224\u7a7a，\u56e0\u4e3a\u9884\u53d6\u4e00\u4e2a\u7a7a\u5730\u5740\u8f7b\u5219\u6d6a\u8d39\u4e00\u4e2a\u9884\u53d6\u69fd\u3001\u91cd\u5219\u5728\u90e8\u5206\u5e73\u53f0\u5f15\u53d1\u5f02\u5e38，\u5224\u7a7a\u662f\u6210\u672c\u63a5\u8fd1\u96f6\u7684\u4fdd\u9669；__builtin_prefetch(addr, 0, 3)\u00a0\u7684\u4e24\u4e2a\u53c2\u6570\u5206\u522b\u8868\u793a"\u8bfb\u8bbf\u95ee"\u4e0e"\u6700\u9ad8\u5c40\u90e8\u6027"，\u5b83\u7684\u8bed\u4e49\u662f"\u628a\u8fd9\u884c\u6570\u636e\u642c\u8fdb\u7f13\u5b58\u4f46\u4e0d\u6539\u4efb\u4f55\u72b6\u6001"，\u547d\u4e2d\u5c31\u7701\u4e00\u6b21\u5185\u5b58\u7b49\u5f85，\u672a\u547d\u4e2d\u4e5f\u51e0\u4e4e\u65e0\u635f\u5931\u2014\u2014\u8fd9\u7c7b\u6307\u4ee4\u7684\u6536\u76ca\u5929\u7136\u9002\u5408\u5806\u53e0\u5728\u6807\u8bb0\u8fd9\u79cd\u5faa\u73af\u4ebf\u6b21\u7684\u70ed\u70b9\u4e0a；SetMarked(obj)\u00a0\u624d\u662f\u771f\u6b63\u7684\u6807\u8bb0\u5199\u56de，\u9884\u53d6\u53ea\u5f71\u54cd\u5b83\u5230\u5f97\u65e9\u4e0d\u65e9，\u4e0d\u5f71\u54cd\u6b63\u786e\u6027\u3002<\/p>\n

\u653e\u5728\u7b2c\u4e00\u5c42\u7684\u6846\u67b6\u91cc\u8bfb：\u9884\u53d6\u4f18\u5316\u7684\u662f"\u4e0b\u4e00\u6b21\u89e6\u9875"\u7684\u5ef6\u8fdf，\u5b83\u4e0d\u51cf\u5c11\u904d\u5386\u91cf，\u53ea\u8ba9\u904d\u5386\u66f4\u987a\u6ed1\u3002\u5b83\u7684\u5c40\u9650\u4e5f\u6e05\u695a\u2014\u2014\u5bf9\u8c61\u56fe\u5c40\u90e8\u6027\u5dee\u3001\u968f\u673a\u8df3\u8f6c\u4e25\u91cd\u7684\u5806，\u9884\u53d6\u7a97\u53e3\u8fd8\u6ca1\u5230\u6570\u636e\u5c31\u88ab\u6362\u51fa\u53bb\u4e86，\u6536\u76ca\u968f\u4e4b\u8870\u51cf；\u800c\u8fd9\u4e9b\u5dee\u5f02\u5728\u4e0d\u540c\u8d1f\u8f7d\u4e0a\u4e0d\u53ef\u63a7，\u6240\u4ee5\u5b83\u5c5e\u4e8e"\u6709\u5219\u66f4\u597d\u3001\u4e0d\u627f\u8bfa\u591a\u5c11"\u7684\u5e95\u5ea7\u4f18\u5316\u3002<\/p>\n

10.2 \u96f6\u62f7\u8d1d\u6bb5\u63d0\u4ea4（Zero-Copy Segment Commit）<\/h4>\n

\u539f\u7a3f\u7684\u63cf\u8ff0\u4fdd\u7559：\u5728 Linux \u4e0a，.NET Core GC \u7528\u00a0fallocate\u00a0\u7684\u00a0FALLOC_FL_ZERO_RANGE\u00a0\u6807\u8bb0\u63d0\u4ea4\u65b0\u6bb5，\u907f\u514d\u663e\u5f0f\u7684\u00a0memset\u00a0\u6e05\u96f6；\u5bf9 64MB \u8fd9\u6837\u7684\u5927\u6bb5，\u8fd9\u53ef\u4ee5\u7701\u4e0b\u6570\u6beb\u79d2\u7684\u63d0\u4ea4\u65f6\u95f4（\u793a\u4f8b\u91cf\u7ea7，\u53d6\u51b3\u4e8e\u9875\u5927\u5c0f\u4e0e\u5185\u5b58\u5e26\u5bbd，\u975e\u5b9e\u6d4b\u5e38\u6570）\u3002\u5b83\u7684\u539f\u7406\u662f\u628a"\u4fdd\u8bc1\u65b0\u9875\u662f\u96f6"\u8fd9\u4ef6\u4e8b\u4e0b\u63a8\u7ed9\u6587\u4ef6\u7cfb\u7edf\u4e0e\u5185\u6838\u6309\u9700\u5b8c\u6210，\u800c\u4e0d\u662f\u8fdb\u7a0b\u81ea\u5df1\u9010\u5b57\u8282\u5199\u4e00\u904d\u2014\u2014\u5199 64MB \u5373\u4f7f\u5e26\u5bbd\u62c9\u6ee1\u4e5f\u8981\u6beb\u79d2\u7ea7，\u6309\u9700\u96f6\u9875\u5219\u53ea\u5728\u771f\u6b63\u88ab\u8bbf\u95ee\u7684\u9875\u4e0a\u4ed8\u51fa\u6210\u672c\u3002<\/p>\n

\u6536\u76ca\u4e0e\u9002\u7528\u7ed1\u5b9a\u5728\u6bb5\u7684\u5c3a\u5bf8\u4e0a：Server \u6a21\u5f0f\u5927\u6bb5\u6269\u5f20\u65f6\u6700\u660e\u663e，Workstation \u5c0f\u6bb5\u51e0\u4e4e\u65e0\u611f\u3002\u5c40\u9650\u6709\u4e24\u6761，\u90fd\u4e0e\u5e73\u53f0\u7ed1\u5b9a：\u8fd9\u662f Linux \u8def\u5f84\u7684\u884c\u4e3a，Windows \u4e0a\u5bf9\u5e94\u7684\u662f\u865a\u62df\u5185\u5b58\u7ba1\u7406\u5668\u81ea\u8eab\u7684\u96f6\u9875\u8bed\u4e49，\u4e0d\u9700\u8981\u4e5f\u6ca1\u6cd5\u7528\u540c\u4e00\u62db；\u53e6\u5916\u5b83\u4f18\u5316\u7684\u662f"\u63d0\u4ea4\u8fd9\u4e00\u4e0b"，\u6bb5\u63d0\u4ea4\u540e\u4ecd\u7136\u8981\u89e6\u9875，\u540e\u9762\u8ddf\u7740\u7684\u8fd8\u662f\u7b2c\u4e94\u8282\u3001\u7b2c\u56db\u8282\u90a3\u4e9b\u5185\u5b58\u8bbf\u95ee\u95ee\u9898\u3002\u6bb5\u63d0\u4ea4\u7701\u4e0b\u7684\u6beb\u79d2\u6570，\u8981\u653e\u56de"\u6bb5\u6269\u5f20\u9891\u7387"\u91cc\u624d\u7b97\u5f97\u6e05\u8d26\u2014\u2014\u6269\u5f20\u4e0d\u9891\u7e41\u7684\u670d\u52a1，\u8fd9\u9879\u6536\u76ca\u5929\u7136\u8d8b\u8fd1\u4e8e\u96f6\u3002<\/p>\n

\u5341\u4e00\u3001\u91cf\u5316\u6570\u636e：\u7d2f\u79ef\u6548\u5e94\u4e0e\u53e3\u5f84\u58f0\u660e<\/h3>\n

\u539f\u7a3f\u7684\u6838\u5fc3\u91cf\u5316\u7ed3\u8bba\u5728\u8fd9\u91cc\u4fdd\u7559，\u5e76\u628a\u53e3\u5f84\u4e00\u6b21\u8bf4\u900f：\u6bcf\u9879\u5fae\u4f18\u5316\u5355\u72ec\u63d0\u5347 1-5%，\u4f46\u7d2f\u79ef\u4ea7\u751f\u8d28\u53d8\u3002\u4ee5 .NET 8 Web API（16 \u6838 64GB）\u4e3a\u4f8b\u7684\u6c47\u603b\u6570\u636e\u5982\u4e0b：<\/p>\n\n\u4f18\u5316\u6280\u672fGC \u6682\u505c\u964d\u4f4e\u4e3b\u5bfc\u673a\u7406\u8bf4\u660e<\/tr>\n\n\n\n\n\n
\u5927\u9875\u9762（2MB）<\/td>\n-22%<\/td>\nTLB miss \u663e\u8457\u51cf\u5c11<\/td>\n\u793a\u4f8b\u91cf\u7ea7，\u968f\u5806\u5927\u5c0f\u4e0e\u786c\u4ef6 TLB \u89c4\u683c\u53d8\u5316<\/td>\n<\/tr>\n
CPU \u4eb2\u548c\u7ed1\u6838<\/td>\n-15%<\/td>\n\u7f13\u5b58\u547d\u4e2d\u7387\u63d0\u5347\u3001\u8de8\u6838\u8fc1\u79fb\u6d88\u5931<\/td>\n\u793a\u4f8b\u91cf\u7ea7，\u968f\u4e1a\u52a1\u6838\u6324\u5360\u7a0b\u5ea6\u53d8\u5316<\/td>\n<\/tr>\n
\u6bb5\u9884\u6620\u5c04<\/td>\n-8%<\/td>\n\u7cfb\u7edf\u8c03\u7528\u6d88\u9664<\/td>\n\u793a\u4f8b\u91cf\u7ea7，\u4e0e\u6bb5\u6269\u5f20\u9891\u7387\u5f3a\u76f8\u5173<\/td>\n<\/tr>\n
\u7ec4\u5408\u5168\u90e8<\/td>\n-35%<\/td>\n\u7d2f\u79ef\u6548\u5e94<\/td>\n\u793a\u4f8b\u91cf\u7ea7，\u975e\u5b9e\u6d4b\u5e38\u6570；\u5355\u9879\u4e4b\u548c\u5927\u4e8e\u7ec4\u5408\u503c，\u56e0\u4e3a\u6536\u76ca\u4e92\u76f8\u91cd\u53e0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u5fc5\u987b\u5199\u5728\u8868\u683c\u65c1\u8fb9\u7684\u4e09\u6761\u53e3\u5f84\u3002\u7b2c\u4e00，\u8fd9\u4e9b\u767e\u5206\u6bd4\u5168\u90e8\u662f\u539f\u7a3f\u7ed9\u51fa\u7684\u793a\u4f8b\u91cf\u7ea7，\u4e0d\u662f\u53ef\u590d\u73b0\u7684\u5b9e\u6d4b\u57fa\u51c6，\u672c\u6587\u672a\u5bf9\u8be5\u6570\u636e\u505a\u4efb\u4f55\u5b9e\u6d4b\u9a8c\u8bc1，\u5f15\u7528\u65f6\u8bf7\u6807\u6ce8\u53e3\u5f84\u6216\u6362\u6210\u81ea\u5df1\u7684 A\/B \u6570\u636e\u3002\u7b2c\u4e8c，\u7ec4\u5408\u503c（-35%）\u5c0f\u4e8e\u5355\u9879\u76f8\u52a0（-45%），\u8fd9\u6b63\u662f\u7f13\u5b58\u3001TLB\u3001\u7cfb\u7edf\u8c03\u7528\u4e09\u7c7b\u6536\u76ca\u4e92\u76f8\u8986\u76d6\u7684\u7ed3\u679c\u2014\u2014\u628a\u6bcf\u9879\u4f18\u5316\u7684\u6536\u76ca\u7b80\u5355\u76f8\u52a0\u662f\u6027\u80fd\u8bc4\u4f30\u91cc\u6700\u5e38\u89c1\u7684\u9519\u8bef\u3002\u7b2c\u4e09，\u57fa\u51c6\u662f"GC \u6682\u505c\u964d\u4f4e"，\u4e0d\u662f\u541e\u5410\u63d0\u5347，\u4e5f\u4e0d\u662f\u7aef\u5230\u7aef\u5ef6\u8fdf\u6309\u540c\u6bd4\u4f8b\u4e0b\u964d：\u6682\u505c\u53ea\u5360\u670d\u52a1\u603b\u5ef6\u8fdf\u7684\u4e00\u90e8\u5206，Amdahl \u5b9a\u5f8b\u5728\u8fd9\u91cc\u540c\u6837\u6210\u7acb\u3002<\/p>\n

\u5982\u679c\u8981\u628a\u8fd9\u5957\u53e3\u5f84\u843d\u6210\u81ea\u5df1\u7684\u6d41\u7a0b，\u52a8\u4f5c\u662f\u56fa\u5b9a\u7684：\u540c\u4e00\u573a\u666f\u3001\u540c\u4e00\u5806\u89c4\u6a21\u3001\u540c\u4e00\u914d\u7f6e\u57fa\u7ebf，\u6bcf\u6b21\u53ea\u6539\u4e00\u4e2a\u4f18\u5316\u5f00\u5173，\u8dd1\u56fa\u5b9a\u65f6\u957f\u91c7\u96c6 GC \u4e8b\u4ef6\u6d41，\u6bd4\u8f83\u5355\u6b21\u6682\u505c\u5206\u4f4d\u6570\u4e0e background\/blocking \u6784\u6210；\u5168\u90e8\u6539\u5b8c\u518d\u5408\u8dd1\u4e00\u6b21\u9a8c\u8bc1\u7ec4\u5408\u6548\u679c\u3002\u6ca1\u6709\u8fd9\u6761\u6d41\u6c34\u7ebf，\u8868\u91cc\u7684\u6570\u5b57\u5bf9\u4f60\u7684\u670d\u52a1\u5c31\u53ea\u662f\u53c2\u8003\u7cfb\u3002<\/p>\n

\u5341\u4e8c\u3001\u4e0e\u5176\u4ed6\u8fd0\u884c\u65f6\u7684\u4f18\u5316\u5bf9\u6bd4<\/h3>\n

\u540c\u6837\u7684\u95ee\u9898，\u4e0d\u540c\u8fd0\u884c\u65f6\u7ed9\u7684\u7b54\u6848\u4e0d\u4e00\u6837，\u653e\u5728\u4e00\u8d77\u624d\u770b\u5f97\u6e05 .NET \u8fd9\u5957\u7684\u53d6\u5411：<\/p>\n\n\u4f18\u5316\u65b9\u5411.NET Core GCJava（G1 \/ ZGC \u4e00\u7c7b）GoUnity（Boehm \u589e\u91cf）<\/tr>\n\n\n\n\n\n\n\n
\u5ef6\u8fdf\u6cbb\u7406\u4e3b\u7ebf<\/td>\n\u540e\u53f0\u5e76\u53d1\u6807\u8bb0 + \u77ed STW \u5207\u7247<\/td>\n\u5206\u533a\u56de\u6536 \/ \u5e76\u53d1\u6807\u8bb0\u4e0e\u8f6c\u79fb<\/td>\n\u5e76\u53d1\u4e09\u8272\u6807\u8bb0 + \u5199\u5c4f\u969c<\/td>\n\u65f6\u95f4\u5206\u7247\u6807\u8bb0（\u8de8\u5e27）<\/td>\n<\/tr>\n
\u6bb5\u4e0e\u5185\u5b58\u63a5\u53e3<\/td>\n\u6bb5\u4e24\u9636\u6bb5\u63d0\u4ea4\u3001\u9884\u6620\u5c04\u3001\u96f6\u62f7\u8d1d\u63d0\u4ea4<\/td>\n\u5806\u5206\u533a + \u5185\u5b58\u6c60\u5316，\u5927\u9875\u6309 JVM \u53c2\u6570\u5f00<\/td>\nmspan\/span \u7ba1\u7406，\u5927\u9875\u652f\u6301\u6709\u9650<\/td>\n\u4fdd\u5b88\u5f0f\u7a7a\u95f2\u94fe\u8868，\u9875\u7c92\u5ea6\u810f\u4f4d<\/td>\n<\/tr>\n
\u62d3\u6251\u611f\u77e5<\/td>\n\u591a\u5806 + \u7ed1\u6838\u63a9\u7801 + NUMA \u672c\u5730\u5206\u914d<\/td>\nGC \u7ebf\u7a0b\u6570\u4e0e NUMA \u4eb2\u548c\u53ef\u914d<\/td>\nP \u5f62\u5f0f GOMAXPROCS，\u65e0\u72ec\u7acb GC \u5806\u62d3\u6251<\/td>\n\u65e0\u591a\u5806\u6982\u5ff5<\/td>\n<\/tr>\n
\u5206\u914d\u5feb\u8def\u5f84<\/td>\n\u7ebf\u7a0b\u5206\u914d\u4e0a\u4e0b\u6587（\u65e0\u9501 bump）<\/td>\nTLAB（\u540c\u7c7b\u8bbe\u8ba1）<\/td>\nmcache + mcentral \u5206\u7ea7<\/td>\n\u6309\u5c3a\u5bf8\u627e\u7a7a\u95f2\u5757<\/td>\n<\/tr>\n
\u5927\u5bf9\u8c61<\/td>\nLOH \u72ec\u7acb\u5806 + POH \u56fa\u5b9a\u5806<\/td>\n\u5927\u5bf9\u8c61\u533a\u72ec\u7acb\u7ba1\u7406<\/td>\n\u76f4\u63a5\u5927 span，\u65e0\u5206\u4ee3\u664b\u5347<\/td>\n\u65e0\u72ec\u7acb\u5806，\u540c\u8d70\u7a7a\u95f2\u94fe\u8868<\/td>\n<\/tr>\n
\u914d\u7f6e\u9762<\/td>\nruntimeconfig \/ \u73af\u5883\u53d8\u91cf\u6210\u4f53\u7cfb<\/td>\n-XX:\u00a0\u7cfb\u5217\u53c2\u6570\u6700\u5168<\/td>\n\u51e0\u4e4e\u5168\u81ea\u52a8，\u65cb\u94ae\u5c11<\/td>\nGC_enable_incremental\u00a0\u4e00\u65cf\u63a5\u53e3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e09\u5217\u7ed3\u8bba\u3002\u7b2c\u4e00，"\u7ebf\u7a0b\u672c\u5730\u5206\u914d\u7a97\u53e3"\u5df2\u662f\u73b0\u4ee3 GC \u7684\u6807\u914d（.NET \u7684\u5206\u914d\u4e0a\u4e0b\u6587\u4e0e Java \u7684 TLAB \u662f\u540c\u4e00\u7c7b\u8bbe\u8ba1），\u771f\u6b63\u7684\u5206\u6c34\u5cad\u5728\u62d3\u6251\u611f\u77e5\u4e0e\u5185\u5b58\u63a5\u53e3\u5c42\u2014\u2014.NET \u628a\u7ed1\u6838\u63a9\u7801\u3001NUMA\u3001\u6bb5\u9884\u6620\u5c04\u505a\u6210\u4e00\u7b49\u914d\u7f6e，\u662f\u5b83\u5728\u5927\u5806\u591a\u6838\u573a\u666f\u4e0b\u6389\u961f\u66f4\u5c11\u7684\u539f\u56e0\u3002\u7b2c\u4e8c，Java \u751f\u6001\u7684\u65cb\u94ae\u6700\u591a\u3001\u53ef\u8c03\u7a7a\u95f4\u6700\u5927，\u4ee3\u4ef7\u662f\u8c03\u4f18\u77e5\u8bc6\u8d1f\u62c5\u4e5f\u6700\u91cd；.NET \u9009\u62e9\u7684\u662f"\u81ea\u52a8\u8def\u5f84\u505a\u5bf9 + \u5c11\u91cf\u5173\u952e\u5f00\u5173"，\u8fd9\u4e0e\u7b2c\u4e03\u8282\u9884\u7b97\u81ea\u9002\u5e94\u7684\u8bbe\u8ba1\u53d6\u5411\u4e00\u81f4\u3002\u7b2c\u4e09，Go \u6362\u4e86\u4e00\u6761\u5f7b\u5e95\u7684\u8def：\u4e0d\u5206\u4ee3\u3001\u4e0d\u538b\u7f29，\u628a\u590d\u6742\u5ea6\u538b\u5230\u8fd0\u884c\u65f6\u6700\u5c0f，\u4ee3\u4ef7\u662f\u5806\u66f4\u5927\u3001\u56de\u6536\u66f4\u4f9d\u8d56\u5e76\u53d1\u2014\u2014\u6ca1\u6709\u54ea\u6761\u8def\u514d\u8d39，\u90fd\u662f\u628a\u6210\u672c\u632a\u5230\u522b\u5904\u3002<\/p>\n

\u5bf9\u7167\u56de\u672c\u4e13\u680f：Unity \u7684 Boehm \u589e\u91cf\u65b9\u6848\u5904\u5728\u8868\u683c\u6700\u53f3，\u5b83\u7684\u4f18\u5316\u7a7a\u95f4\u88ab"\u4fdd\u5b88\u5f0f + \u4e0d\u5206\u4ee3 + \u4e0d\u79fb\u52a8"\u4e09\u91cd\u9501\u6b7b，\u8fd9\u6b63\u662f Unity 6 \u5f15\u5165 CoreCLR \u540e\u7aef\u540e\u8bc4\u4f30\u5bf9\u8c61\u4f1a\u6574\u4f53\u5207\u6362\u7684\u5e95\u5c42\u539f\u56e0（\u80cc\u666f\u89c1 03-04 \u7b2c\u516b\u8282）\u3002<\/p>\n

\u5341\u4e09\u3001\u51b3\u7b56\u6e05\u5355\u4e0e\u5e38\u89c1\u8bef\u533a<\/h3>\n

13.1 \u4f18\u5316\u70b9\u51b3\u7b56\u8868（\u539f\u7406 \u2192 \u6536\u76ca \u2192 \u9002\u7528 \u2192 \u5c40\u9650）<\/h4>\n\n\u4f18\u5316\u70b9\u539f\u7406\u4e00\u53e5\u8bdd\u6536\u76ca（\u53e3\u5f84）\u9002\u7528\u573a\u666f\u5c40\u9650<\/tr>\n\n\n\n\n\n\n\n\n\n
\u6bb5\u9884\u63d0\u4ea4\/\u9884\u6620\u5c04<\/td>\n\u4e00\u6b21\u6027\u9884\u7559\u5730\u5740\u4e0e\u6620\u5c04，\u70ed\u8def\u5f84\u4e0d\u518d\u8fdb\u5185\u6838<\/td>\n\u6682\u505c -8% \u91cf\u7ea7（\u793a\u4f8b）<\/td>\n\u6bb5\u6269\u5f20\u9891\u7e41\u7684\u5927\u5806\u670d\u52a1<\/td>\n\u767d\u5360\u5730\u5740\u7a7a\u95f4；\u5224\u65ad\u5931\u51c6\u4ecd\u56de\u9000\u6309\u9700<\/td>\n<\/tr>\n
\u5927\u9875 2MB<\/td>\n\u9875\u8868\u9879\u51cf\u5c11，TLB \u8986\u76d6\u6269\u5927<\/td>\n\u8bbf\u5b58\u6548\u7387\u7ea6 +30% \u91cf\u7ea7（\u793a\u4f8b）<\/td>\nGB \u7ea7\u5927\u5806\u3001\u7269\u7406\u673a\u3001\u5ef6\u8fdf\u654f\u611f<\/td>\n\u9700\u7279\u6743\u4e0e\u9884\u7559\u6c60；\u5185\u5b58\u7d27\u65f6\u788e\u7247\u66f4\u786c<\/td>\n<\/tr>\n
NUMA \u672c\u5730\u5206\u914d<\/td>\n\u6bb5\u843d\u5728\u5bf9\u5e94 CPU \u7684\u672c\u5730\u5185\u5b58<\/td>\n\u8fdc\u7aef\u8bbf\u5b58 2-3 \u500d\u5dee\u8ddd\u8f6c\u4e3a\u672c\u5730（\u5178\u578b\u4f30\u7b97）<\/td>\n\u591a\u8def\u670d\u52a1\u5668\u300164 \u6838\u4ee5\u4e0a<\/td>\n\u62d3\u6251\u8bc6\u522b\u9519\u8bef\u53cd\u800c\u8de8\u63d2\u69fd<\/td>\n<\/tr>\n
CPU \u5206\u7ec4\u4eb2\u548c\/\u7ed1\u6838<\/td>\nGC \u7ebf\u7a0b\u9489\u5728\u6307\u5b9a\u6838，\u63a9\u7801\u6309\u7ec4\u5c55\u5f00<\/td>\n\u6682\u505c -15% \u91cf\u7ea7（\u793a\u4f8b）<\/td>\nServer GC \u5e38\u9a7b\u591a\u6838\u670d\u52a1<\/td>\n\u4e0e\u4e1a\u52a1\u62a2\u6838；\u5bb9\u5668\u5185\u8fc1\u79fb\u5931\u6548<\/td>\n<\/tr>\n
\u591a\u5806\u4e0e\u5206\u914d\u7a97\u53e3<\/td>\n\u6bcf\u6838\u4e00\u5806 + \u7ebf\u7a0b\u65e0\u9501 bump \u5206\u914d<\/td>\n\u5206\u914d\u541e\u5410\u7ebf\u6027\u6269\u5c55（>99.9% \u65e0\u9501，\u793a\u4f8b）<\/td>\n\u6240\u6709\u591a\u6838\u5206\u914d\u5bc6\u96c6\u670d\u52a1<\/td>\nLOH \u4e3b\u5bfc\u8d1f\u8f7d\u6536\u76ca\u9aa4\u51cf<\/td>\n<\/tr>\n
GC \u611f\u77e5\u5206\u914d<\/td>\n\u5206\u914d\u5165\u53e3\u6309 GC \u72b6\u6001\u8d70\u5b89\u5168\u8def\u5f84<\/td>\n\u907f\u514d\u4e0e GC \u4e92\u8e29，\u9632\u6b7b\u9501\u4e0e\u91cd\u590d\u89e6\u53d1<\/td>\n\u5168\u5c40\u57fa\u7840\u673a\u5236，\u65e0\u9009\u62e9\u5fc5\u8981<\/td>\nGC \u671f\u95f4\u6162\u8def\u5f84\u53d8\u6162<\/td>\n<\/tr>\n
Gen0 \u9884\u7b97\u81ea\u9002\u5e94<\/td>\n\u6309\u5b58\u6d3b\u7387\u56de\u5199\u4e0b\u6b21\u9884\u7b97<\/td>\n\u56de\u6536\u9891\u7387\u81ea\u52a8\u5339\u914d\u5206\u914d\u901f\u7387<\/td>\n\u8d1f\u8f7d\u5468\u671f\u6027\u53d8\u5316\u7684\u670d\u52a1<\/td>\n\u7a81\u53d8\u671f\u9700 1-2 \u8f6e\u8ddf\u4e0a；\u4e0d\u8986\u76d6 LOH<\/td>\n<\/tr>\n
PerfView\/GC \u65e5\u5fd7<\/td>\n\u4e8b\u4ef6\u6d41\u53ef\u89c6\u5316\u4e0e\u524d\u540e\u5bf9\u6bd4<\/td>\n\u914d\u7f6e\u7c7b\u4f18\u5316\u7684\u9a8c\u6536\u624b\u6bb5<\/td>\n\u5168\u90e8\u573a\u666f<\/td>\n\u9700\u8981\u91c7\u6837\u4e0e\u5206\u6790\u7684\u6280\u80fd\u6210\u672c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

13.2 \u5e38\u89c1\u8bef\u533a<\/h4>\n

\u8bef\u533a\u4e00：\u628a\u8868\u91cc\u7684\u767e\u5206\u6bd4\u5f53\u81ea\u5df1\u7684\u9884\u671f\u6536\u76ca\u3002\u00a0\u9519\u8bef\u505a\u6cd5\u662f\u62ff -22%\u3001-35% \u76f4\u63a5\u5199\u8fdb\u6027\u80fd\u62a5\u544a\u3002\u4e3a\u4ec0\u4e48\u9519：\u90a3\u662f\u7279\u5b9a\u786c\u4ef6\u4e0e\u8d1f\u8f7d\u4e0b\u7684\u793a\u4f8b\u91cf\u7ea7，\u6362\u4e00\u5806\u3001\u6362\u8d1f\u8f7d\u3001\u6362\u7248\u672c\u90fd\u4f1a\u53d8，\u4e14\u6536\u76ca\u4e92\u76f8\u91cd\u53e0\u3002\u6b63\u786e\u505a\u6cd5\u662f\u628a\u5b83\u4eec\u5f53"\u503c\u5f97\u6d4b\u7684\u4f18\u5148\u7ea7\u6392\u5e8f"\u2014\u2014\u5148\u6d4b\u5927\u9875\u548c\u7ed1\u6838\u8fd9\u4e24\u9879\u91cf\u7ea7\u5927\u7684，\u518d\u770b\u9884\u6620\u5c04；\u6bcf\u9879\u7528\u81ea\u5df1\u7684 A\/B \u6570\u636e\u8bf4\u8bdd，\u62a5\u544a\u91cc\u5199\u660e\u6d4b\u8bd5\u53e3\u5f84\u3002<\/p>\n

\u8bef\u533a\u4e8c：\u6240\u6709\u4f18\u5316\u65e0\u8111\u5168\u5f00\u3002\u00a0\u9519\u8bef\u505a\u6cd5\u662f\u5728 2 \u6838\u5bb9\u5668\u91cc\u5f00 Server GC\u3001\u914d\u7ed1\u6838\u63a9\u7801\u3001\u9884\u7559\u5927\u9875\u3002\u4e3a\u4ec0\u4e48\u9519：\u6bcf\u9879\u4f18\u5316\u90fd\u6709\u524d\u7f6e\u6761\u4ef6，\u7ed1\u6838\u5728\u4f1a\u8fc1\u79fb\u7684\u5bb9\u5668\u91cc\u5236\u9020\u7b49\u5f85，\u5927\u9875\u5728\u5185\u5b58\u7d27\u5f20\u65f6\u653e\u5927\u788e\u7247，\u5806\u6570\u4e0d\u5bf9\u8ba9\u591a\u5806\u53d8\u7eaf\u8d1f\u62c5\u3002\u6b63\u786e\u505a\u6cd5\u662f\u6309\u51b3\u7b56\u8868\u7684"\u9002\u7528\u573a\u666f"\u5217\u9010\u6761\u6838\u5bf9，\u4e0d\u6ee1\u8db3\u524d\u7f6e\u6761\u4ef6\u7684\u9879\u76f4\u63a5\u8df3\u8fc7\u2014\u2014\u4e0d\u9002\u7528\u7684\u4f18\u5316\u4e0d\u662f\u6536\u76ca\u4e3a\u96f6，\u5f80\u5f80\u662f\u8d1f\u6536\u76ca\u3002<\/p>\n

\u8bef\u533a\u4e09：\u76ef\u7740\u6682\u505c\u4f18\u5316，\u5fd8\u4e86\u6682\u505c\u4e3a\u4ec0\u4e48\u957f\u3002\u00a0\u9519\u8bef\u505a\u6cd5\u662f\u5927\u9875\u3001\u7ed1\u6838\u5168\u90e8\u5230\u4f4d，\u6682\u505c\u8fd8\u662f\u6ca1\u964d，\u4e8e\u662f\u7ee7\u7eed\u52a0\u53c2\u6570\u3002\u4e3a\u4ec0\u4e48\u9519：\u6682\u505c\u957f\u7684\u9996\u8981\u539f\u56e0\u901a\u5e38\u662f\u5206\u914d\u901f\u7387\u4e0e\u5806\u89c4\u6a21（\u9884\u7b97\u88ab\u6253\u7a7f\u3001\u540e\u53f0\u6807\u8bb0\u88ab\u538b\u57ae，\u89c1 07-05 \u7b2c\u516d\u8282），\u5185\u5b58\u5c42\u7684\u5fae\u4f18\u5316\u644a\u4e0d\u52a8\u8fd9\u90e8\u5206\u3002\u6b63\u786e\u505a\u6cd5\u662f\u5148\u7528 GC \u4e8b\u4ef6\u786e\u8ba4\u65f6\u95f4\u82b1\u5728\u54ea\u4e00\u4ee3\u3001\u54ea\u4e2a\u9636\u6bb5，\u7ed3\u6784\u6027\u95ee\u9898（\u5206\u914d\u8fc7\u591a\u3001\u788e\u7247\u3001\u9000\u5316）\u4f18\u5148\u4e8e\u5fae\u4f18\u5316\u3002<\/p>\n

\u8bef\u533a\u56db：\u914d\u7f6e\u6539\u5b8c\u5c31\u7b97\u4f18\u5316\u5b8c\u6210\u3002\u00a0\u9519\u8bef\u505a\u6cd5\u662f\u6539\u4e86 runtimeconfig \u5c31\u5ba3\u5e03\u6536\u76ca\u5165\u8d26\u3002\u4e3a\u4ec0\u4e48\u9519：\u914d\u7f6e\u952e\u62fc\u9519\u3001\u73af\u5883\u53d8\u91cf\u6ca1\u8fdb\u5bb9\u5668\u3001\u8fdb\u7a0b\u8dd1\u5728\u522b\u7684\u6a21\u5f0f\u4e0a，\u90fd\u4f1a\u8ba9\u6539\u52a8\u9759\u9ed8\u5931\u6548\u3002\u6b63\u786e\u505a\u6cd5\u662f\u7b2c\u4e5d\u8282\u7684\u95ed\u73af：\u542f\u52a8\u65e5\u5fd7\u6253\u5370\u751f\u6548\u914d\u7f6e，\u6539\u4e00\u9879\u8dd1\u4e00\u8f6e\u540c\u573a\u666f\u4e8b\u4ef6\u5bf9\u6bd4，\u7cfb\u7edf\u4fa7\u786e\u8ba4\u5927\u9875\u4e0e\u7ed1\u6838\u771f\u7684\u843d\u4e0a\u3002<\/p>\n

\u672c\u7ae0\u603b\u7ed3<\/h3>\n
  • .NET Core GC \u7684\u6027\u80fd\u5e95\u5ea7\u662f\u4e94\u5c42\u4f18\u5316：\u5185\u5b58\u4e0e OS \u63a5\u53e3\u3001\u62d3\u6251\u611f\u77e5\u3001\u5206\u914d\u5e76\u53d1\u5316\u3001\u9884\u7b97\u81ea\u9002\u5e94\u3001\u53ef\u89c2\u6d4b\u914d\u7f6e\u2014\u2014\u5c42\u4e0e\u5c42\u6709\u4f9d\u8d56，\u8bfb\u5355\u70b9\u5fc5\u987b\u5e26\u4e0a\u4e0b\u6587\u3002<\/li>\n
  • \u6bb5\u9884\u6620\u5c04\u7701\u7cfb\u7edf\u8c03\u7528\u3001\u5927\u9875\u7701 TLB\u3001NUMA \u4e0e\u7ed1\u6838\u7701\u8de8\u63d2\u69fd\u8bbf\u5b58，\u4e09\u8005\u90fd\u4f5c\u7528\u5728"\u6bcf\u6b21\u89e6\u9875"\u4e0a，\u5bf9\u5927\u5806\u4e0e\u591a\u6838\u573a\u666f\u6536\u76ca\u6700\u5927，\u5bf9\u5c0f\u5806\u51e0\u4e4e\u65e0\u611f\u3002<\/li>\n
  • \u5206\u914d\u7a97\u53e3\u4e0e\u591a\u7ea7\u7f13\u5b58\u8ba9 99% \u4ee5\u4e0a\u5206\u914d\u65e0\u9501\u5b8c\u6210（\u793a\u4f8b\u53e3\u5f84），\u8fd9\u662f Server GC \u6269\u5c55\u6027\u7684\u524d\u63d0；Gen0 \u9884\u7b97\u6309\u5b58\u6d3b\u7387\u81ea\u9002\u5e94，\u8ba9\u56de\u6536\u9891\u7387\u81ea\u52a8\u8ddf\u7740\u5206\u914d\u901f\u7387\u8d70\u3002<\/li>\n
  • \u6240\u6709\u767e\u5206\u6bd4\u90fd\u662f\u793a\u4f8b\u91cf\u7ea7\u3001\u975e\u5b9e\u6d4b\u5e38\u6570；\u7ec4\u5408\u6536\u76ca\u5c0f\u4e8e\u5355\u9879\u76f8\u52a0，\u8bc4\u4f30\u5fc5\u987b\u5355\u53d8\u91cf A\/B，\u62a5\u544a\u5fc5\u987b\u5199\u53e3\u5f84\u3002<\/li>\n
  • \u4f18\u5316\u7684\u9a8c\u6536\u9760\u4e8b\u4ef6\u6d41\u4e0e\u7cfb\u7edf\u4fa7\u786e\u8ba4：GC \u65e5\u5fd7\u5b9a\u6027\u3001PerfView \u5b9a\u91cf\u3001\u64cd\u4f5c\u7cfb\u7edf\u89c6\u56fe\u9a8c\u8bc1\u5927\u9875\u4e0e\u7ed1\u6838，\u4e09\u4ef6\u7f3a\u4e00\u4ef6\u5c31\u53ef\u80fd\u628a"\u6ca1\u751f\u6548"\u5f53\u6210"\u6ca1\u6536\u76ca"\u3002<\/li>\n
  • \u987a\u5e8f\u4e0d\u80fd\u53cd：\u5148\u6cbb\u5206\u914d\u901f\u7387\u4e0e\u5806\u7ed3\u6784\u8fd9\u7c7b\u7ed3\u6784\u6027\u95ee\u9898，\u518d\u4e0a\u5185\u5b58\u5c42\u5fae\u4f18\u5316\u2014\u2014\u5730\u57fa\u4e0d\u7a33，\u53c2\u6570\u5806\u4e0d\u51fa\u6027\u80fd\u3002<\/li>\n

    \u4e00\u53e5\u8bdd\u8bb0\u5fc6\u70b9：\u7b97\u6cd5\u51b3\u5b9a GC \u7684\u4e0b\u9650，\u8fd9\u4e9b\u8d34\u7740\u786c\u4ef6\u7684\u5fae\u4f18\u5316\u51b3\u5b9a\u5b83\u7684\u4e0a\u9650\u2014\u2014\u800c\u4e0a\u9650\u5151\u73b0\u591a\u5c11，\u53d6\u51b3\u4e8e\u4f60\u6709\u6ca1\u6709\u7528\u540c\u4e00\u5957\u4e8b\u4ef6\u6d41\u8bc1\u660e\u6bcf\u4e00\u9879\u771f\u7684\u751f\u6548\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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