{"id":558,"date":"2020-02-01T14:33:58","date_gmt":"2020-02-01T06:33:58","guid":{"rendered":"https:\/\/www.myway5.com\/?p=558"},"modified":"2023-07-05T21:32:21","modified_gmt":"2023-07-05T13:32:21","slug":"go-scheduler","status":"publish","type":"post","link":"https:\/\/www.myway5.com\/index.php\/2020\/02\/01\/go-scheduler\/","title":{"rendered":"go \u8c03\u5ea6\u5668\u7684\u5b9e\u73b0"},"content":{"rendered":"<h2>\u4e00\u3001\u6982\u8ff0<\/h2>\n<p>goroutine \u662f go \u8bed\u8a00\u7684\u7279\u8272\u4e4b\u4e00\uff0c\u5728 go \u8bed\u8a00\u4e2d\uff0c\u4f60\u53ef\u4ee5\u8f7b\u6613\u7684\u4f7f\u7528 <code>go<\/code> \u5173\u952e\u5b57\u6765\u521b\u5efa\u4e00\u4e2a\u534f\u7a0b\u8fd0\u884c\u4e00\u6bb5\u4ee3\u7801\uff0c\u534f\u7a0b\u5728\u4f7f\u7528\u4e0a\u548c\u6211\u4eec\u5e38\u8bf4\u7684\u7ebf\u7a0b\u76f8\u4f3c\uff0c\u4f46\u662f\u5728 go \u4e2d\uff0c\u534f\u7a0b\u7684\u5b9e\u73b0\u5e76\u975e\u662f\u76f4\u63a5\u4f7f\u7528\u7ebf\u7a0b\u3002\u539f\u56e0\u6709\u4e8c\uff1a<\/p>\n<ul>\n<li>\u7ebf\u7a0b\u7684\u5b9e\u73b0\u7531\u64cd\u4f5c\u7cfb\u7edf\u51b3\u5b9a\uff0c\u5b83\u9644\u5e26\u4e86\u592a\u591a\u989d\u5916\u7684\u7279\u6027\uff0c\u6bd4\u5982\u7ebf\u7a0b\u6709\u5b83\u81ea\u5df1\u7684\u4fe1\u53f7\u63a9\u7801\uff0c\u7ebf\u7a0b\u80fd\u591f\u88ab\u8d4b\u4e88 CPU affinity \u529f\u80fd\uff0c\u7ebf\u7a0b\u80fd\u591f\u88ab\u6dfb\u52a0\u5230 Cgroup \u4e2d\uff0c\u7ebf\u7a0b\u6240\u4f7f\u7528\u7684\u8d44\u6e90\u4e5f\u53ef\u4ee5\u88ab\u67e5\u8be2\u5230\uff0c\u7ebf\u7a0b\u7684\u6808\u7a7a\u95f4\u5927\u5c0f\u9ed8\u8ba4\u662f 2M \u7b49\u7b49\u3002\u8fd9\u4e9b\u5728 goroutine \u4e2d\u4e0d\u9700\u8981\u7684\u7279\u6027\u5e26\u6765\u4e86\u989d\u5916\u7684\u6027\u80fd\u5f00\u9500\u3002<\/p>\n<\/li>\n<li>\n<p>\u9664\u4e86\u4e0a\u9762\u7684\u6027\u80fd\u95ee\u9898\uff0c\u5728 go \u8bed\u8a00\u7684\u7f16\u7a0b\u6a21\u578b\u4e2d\uff0c\u64cd\u4f5c\u7cfb\u7edf\u65e0\u6cd5\u4f5c\u51fa\u6700\u4f73\u7684\u51b3\u7b56\u3002\u6bd4\u5982\u5728\u8fd0\u884c\u4e00\u6b21\u5783\u573e\u6536\u96c6\u65f6\uff0cgo \u7684\u5783\u573e\u6536\u96c6\u5668\u8981\u6c42\u6240\u6709\u7ebf\u7a0b\u90fd\u88ab\u505c\u6b62\uff0c\u5e76\u4e14\u5185\u5b58\u5904\u4e8e\u4e00\u81f4\u6027\u72b6\u6001\uff08\u5173\u4e8e\u5185\u5b58\u4e00\u81f4\u6027\uff0c\u53ef\u4ee5\u53c2\u8003\u8fd9\u7bc7\u6587\u7ae0\uff1a<a class=\"wp-editor-md-post-content-link\" href=\"http:\/\/blog.chinaunix.net\/uid-25909722-id-3016122.html\">\u5185\u5b58\u4e00\u81f4\u6027\u6a21\u578b<\/a>)\u3002\u8fd9\u4e2a\u6d89\u53ca\u5230\u8981\u7b49\u5f85\u5168\u90e8\u8fd0\u884c\u65f6\u7ebf\u7a0b\uff08running threads\uff09\u5230\u8fbe\u4e00\u4e2a\u70b9\uff08point\uff09\uff0c\u6211\u4eec\u4e8b\u5148\u77e5\u9053\u5728\u8fd9\u4e2a\u70b9\u5185\u5b58\u662f\u4e00\u81f4\u7684\u3002\u5f53\u5728\u4e00\u4e2a\u968f\u673a\u70b9\u4e0a\u8c03\u5ea6\u4e86\u591a\u4e2a\u7ebf\u7a0b\uff0c\u4f60\u4e0d\u5f97\u4e0d\u7b49\u5f85\u4ed6\u4eec\u4e2d\u7684\u5927\u591a\u6570\u5230\u8fbe\u4e00\u81f4\u6027\u72b6\u6001\u3002go \u8c03\u5ea6\u7a0b\u5e8f\u53ef\u4ee5\u51b3\u5b9a\u4ec5\u5728\u77e5\u9053\u5185\u5b58\u4e00\u81f4\u7684\u70b9\u4e0a\u8fdb\u884c\u8c03\u5ea6\uff0c\u8fd9\u6837\u5728\u4efb\u4f55\u65f6\u523b\uff0c\u5f53\u524d\u6ca1\u6709\u88ab\u8c03\u5ea6\u7684\u7ebf\u7a0b\u662f\u5904\u4e8e\u5185\u5b58\u4e00\u81f4\u72b6\u6001\u7684\uff0c\u8fd9\u610f\u5473\u7740\u5f53\u6211\u4eec\u8981\u4e3a\u5783\u573e\u6536\u96c6\u505c\u6b62\u7ebf\u7a0b\u8fd0\u884c\u65f6\uff0c\u6211\u4eec\u53ea\u9700\u8981\u7b49\u5f85\u90a3\u4e9b CPU \u6838\u5fc3\u4e0a\u8fd0\u884c\u7684\u7ebf\u7a0b\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u56e0\u6b64\uff0cgo \u8bed\u8a00\u5b9e\u73b0\u4e00\u4e2a\u81ea\u5df1\u7684\u8c03\u5ea6\u5668\uff0c\u5b83\u53ef\u4ee5\u521b\u5efa\u66f4\u8f7b\u91cf\u7684\u7ebf\u7a0b\uff0c\u4e5f\u5c31\u662f goroutine\uff0c\u540c\u65f6\uff0c\u8c03\u5ea6\u7b97\u6cd5\u9700\u8981\u66f4\u667a\u80fd\uff0c\u4ee5\u63d0\u5347\u5927\u91cf\u5e76\u53d1\u4e0b\u7684\u6027\u80fd\u3002<\/p>\n<p>\u5728\u8ba8\u8bba go \u7684\u8c03\u5ea6\u5668\u4e4b\u524d\uff0c\u6211\u4eec\u8fd8\u8981\u8ba8\u8bba\u4e00\u4e0b\u5e38\u89c1\u7684\u7ebf\u7a0b\u6a21\u578b\uff0c\u5177\u4f53\u7684\u5185\u5bb9\u53ef\u4ee5\u53c2\u8003\u8fd9\u7bc7\u6587\u7ae0\uff1a<a class=\"wp-editor-md-post-content-link\" href=\"https:\/\/www.jianshu.com\/p\/5a4fc2729c17\">\u5185\u6838\u7ebf\u7a0b\u4e0e\u7528\u6237\u7ebf\u7a0b\u7684\u4e00\u70b9\u5c0f\u603b\u7ed3<\/a>.<\/p>\n<p>\u6211\u4eec\u6839\u636e\u7ebf\u7a0b\u7684\u8c03\u5ea6\u5b9e\u73b0\uff0c\u5c06\u7ebf\u7a0b\u5206\u4e3a\u5185\u6838\u7ebf\u7a0b\u548c\u7528\u6237\u7ebf\u7a0b\u3002\u5176\u4e2d\uff0c\u5185\u6838\u7ebf\u7a0b\u662f\u7531\u64cd\u4f5c\u7cfb\u7edf\u8c03\u5ea6\uff0c\u800c\u7528\u6237\u7ebf\u7a0b\u662f\u7531\u7528\u6237\u81ea\u5df1\u5b9e\u73b0\u7684\u8c03\u5ea6\u5668\u8fdb\u884c\u8c03\u5ea6\u3002\u6839\u636e\u7528\u6237\u7ebf\u7a0b\u548c\u5185\u6838\u7ebf\u7a0b\u7684\u5173\u7cfb\u5206\u4e3a\u4e0b\u9762\u51e0\u79cd\u7ebf\u7a0b\u6a21\u578b\uff1a<\/p>\n<p><strong>1:1\u6a21\u578b<\/strong><\/p>\n<p>1:1 \u6a21\u578b\u5f88\u7b80\u5355\uff0c\u5c31\u662f\u5c06\u4e00\u4e2a\u7528\u6237\u7ebf\u7a0b\u6620\u5c04\u6216\u7ed1\u5b9a\u5230\u4e00\u4e2a\u5185\u6838\u7ebf\u7a0b\u4e0a\uff0c\u4f46\u662f\u8fd9\u4f1a\u5bfc\u81f4\u7ebf\u7a0b\u7684\u4e0a\u4e0b\u6587\u5207\u6362\u4f1a\u5f88\u6162\u3002<\/p>\n<p><strong>N:1\u6a21\u578b<\/strong><\/p>\n<p>N:1 \u6a21\u578b\u4e2d\u4f1a\u5c06\u591a\u4e2a\u7528\u6237\u7ebf\u7a0b\u6620\u5c04\u6216\u7ed1\u5b9a\u5230\u4e00\u4e2a\u5185\u6838\u7ebf\u7a0b\u4e0a\uff0c\u8fd9\u6837\u591a\u4e2a\u7528\u6237\u7ebf\u7a0b\u4e4b\u95f4\u7684\u4e0a\u4e0b\u6587\u5207\u6362\u4f1a\u5f88\u5feb\uff0c\u4f46\u662f\u7f3a\u70b9\u662f\u6ca1\u6cd5\u5229\u7528\u591a\u6838\u7684\u4f18\u52bf\u3002<\/p>\n<p><strong>M:N\u6a21\u578b<\/strong><\/p>\n<p>1:1 \u6a21\u578b \u548c N:1 \u6a21\u578b\u90fd\u6709\u5b83\u4eec\u5404\u81ea\u7684\u7f3a\u70b9\uff0c\u56e0\u6b64 go \u8c03\u5ea6\u5668\u4e2d\u4f7f\u7528\u4e86 M:N \u6a21\u578b\uff0c\u65e2\u80fd\u4fdd\u8bc1\u5229\u7528\u5230\u591a\u6838\u7684\u4f18\u52bf\uff0c\u4e5f\u80fd\u4fdd\u8bc1\u66f4\u5feb\u7684\u4e0a\u4e0b\u6587\u5207\u6362\u3002\u8fd9\u4e5f\u662f\u6211\u4eec\u63a5\u4e0b\u6765\u8981\u8ba8\u8bba\u7684\u95ee\u9898\u3002<\/p>\n<h2>\u4e8c\u3001go 1.0 \u7684\u8c03\u5ea6\u5668\u5b9e\u73b0\u65b9\u6848<\/h2>\n<p>go 1.0 \u7684\u8c03\u5ea6\u5668\u5b9e\u73b0\u65b9\u6848\u5176\u5b9e\u5e76\u4e0d\u662f\u8fd9\u7bc7\u6587\u7ae0\u7684\u5173\u6ce8\u70b9\uff0c\u56e0\u4e3a\u5b83\u7684\u751f\u547d\u5468\u671f\u592a\u77ed\u3002\u4e4b\u6240\u4ee5\u8981\u62ff\u51fa\u6765\u5355\u72ec\u8bf4\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u7406\u89e3 go 1.1 \u4e2d\u8c03\u5ea6\u5668\u5b9e\u73b0\u65b9\u6848\u89e3\u51b3\u7684\u95ee\u9898\u4ee5\u53ca\u5e26\u6765\u7684\u6027\u80fd\u63d0\u5347\u3002<\/p>\n<p>\u4e3a\u4e86\u66f4\u597d\u7684\u9610\u8ff0\u8fd9\u4e2d\u95f4\u7684\u673a\u5236\uff0c\u6211\u4eec\u4f7f\u7528\u7b26\u53f7 M \u6765\u8868\u793a\u5185\u6838\u7ebf\u7a0b\uff0c\u4f7f\u7528\u7b26\u53f7 G \u6765\u8868\u793a goroutine\u3002\u5728\u8fd9\u4e2a\u7248\u672c\u4e2d\uff0c\u53ea\u6709\u4e00\u4e2a\u5168\u5c40\u7684 goroutine \u961f\u5217\uff0c\u6240\u6709\u7684\u5185\u6838\u7ebf\u7a0b\u90fd\u8981\u4ece\u8fd9\u4e2a\u961f\u5217\u4e2d\u53d6\u51fa \u548c\u653e\u56degoroutine\u3002\u4e0b\u56fe\u662f\u4e00\u4e2a\u5305\u542b\u4e24\u4e2a\u5185\u6838\u7ebf\u7a0b\uff0c\u53ea\u6709\u4e00\u4e2a\u5168\u5c40\u961f\u5217\u7684\u4f8b\u5b50\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2020\/01\/1-1.png\" alt=\"go scheduler 1.0\" \/><\/p>\n<p>\u53ea\u6709\u4e00\u4e2a\u5168\u5c40\u961f\u5217\uff0c\u5bfc\u81f4\u65e0\u6cd5\u4fdd\u8bc1\u4e00\u4e2a goroutine \u4f1a\u5728\u540c\u4e00\u4e2a\u5185\u6838\u7ebf\u7a0b\u4e0a\u8c03\u5ea6\u3002\u56e0\u6b64\uff0c\u4e00\u4e2a goroutine \u4f1a\u5728\u4e0d\u540c\u7684\u5185\u6838\u7ebf\u7a0b\u4e0a\u8c03\u5ea6\uff0c\u5bfc\u81f4\u4e0a\u4e0b\u6587\u5207\u6362\u8f83\u6162\uff0c\u975e\u5e38\u5f71\u54cd\u6027\u80fd\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u963b\u585e\u901a\u9053\u7684\u4f8b\u5b50\uff0c\u7528\u6765\u8bf4\u660e\u8fd9\u4e2a\u95ee\u9898\uff1a<\/p>\n<p>goroutine G7 \u963b\u585e\u5728 channel \u4e0a\uff0c\u7b49\u5f85\u63a5\u6536\u4e00\u4e2a\u6d88\u606f\u3002\u4e00\u65e6\u63a5\u6536\u5230\u8fd9\u4e2a\u6d88\u606f\uff0cG7 \u5c31\u88ab\u653e\u5230\u5168\u5c40\u961f\u5217\u4e2d\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2020\/01\/2.png\" alt=\"go scheduler 1.0\" \/><\/p>\n<p>G7 \u88ab\u653e\u5230\u961f\u5217\u5c3e\u540e\uff0c\u961f\u5217\u9996\u7684 GX \u5f97\u5230\u4e86\u88ab\u6267\u884c\u7684\u673a\u4f1a\uff0c\u56e0\u6b64\u5b83\u88ab\u8c03\u5ea6\u4e0a\u7b2c\u4e00\u4e2a M \u4e0a\u6267\u884c\u3002\u6b64\u65f6\uff0cG8 \u4e5f\u963b\u585e\u5728 channel \u4e0a\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2020\/01\/3.png\" alt=\"go scheduler 1.0\" \/><\/p>\n<p>G7 \u91cd\u65b0\u5f97\u5230\u4e86\u6267\u884c\u7684\u673a\u4f1a\uff0c\u4f46\u662f\u56e0\u4e3a\u7b2c\u4e00\u4e2a M \u6b63\u5728\u6267\u884c GX\uff0c\u56e0\u6b64 G7 \u53ea\u80fd\u8c03\u5ea6\u5230\u7b2c\u4e8c\u4e2a M \u4e0a\u6267\u884c\u3002\u8fd9\u65f6\u5019\u5c31\u53d1\u751f\u4e86\u8de8\u5185\u6838\u7ebf\u7a0b\u7684\u4e0a\u4e0b\u6587\u5207\u6362\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2020\/01\/4.png\" alt=\"go scheduler 1.0\" \/><\/p>\n<p>\u53ea\u6709\u4e00\u4e2a\u5168\u5c40\u961f\u5217\u8fd8\u5e26\u6765\u4e86\u53e6\u5916\u4e00\u4e2a\u95ee\u9898\uff0c\u56e0\u4e3a\u4ece\u961f\u5217\u4e2d\u83b7\u53d6 goroutine \u5fc5\u987b\u8981\u52a0\u9501\uff0c\u5bfc\u81f4\u9501\u7684\u4e89\u7528\u975e\u5e38\u9891\u7e41\u3002\u5c24\u5176\u662f\u5728\u5927\u91cf goroutine \u88ab\u8c03\u5ea6\u7684\u60c5\u51b5\u4e0b\uff0c\u5bf9\u6027\u80fd\u7684\u5f71\u54cd\u4e5f\u4f1a\u975e\u5e38\u660e\u663e\u3002<\/p>\n<p>\u53e6\u5916\u5728 <a class=\"wp-editor-md-post-content-link\" href=\"https:\/\/docs.google.com\/document\/d\/1TTj4T2JO42uD5ID9e89oa0sLKhJYD0Y_kqxDv3I3XMw\/edit#\">Scalable Go Scheduler Design Doc<\/a> \u8fd9\u7bc7\u6587\u7ae0\u4e2d\u8fd8\u63d0\u5230\u4e86\u53e6\u5916\u4e24\u4e2a\u95ee\u9898\u3002<\/p>\n<ul>\n<li>\u6240\u6709\u7684 M \u90fd\u5173\u8054\u4e86\u5185\u5b58\u7f13\u5b58\uff08mcache\uff09\u548c\u5176\u4ed6\u7684\u7f13\u5b58\uff08\u6808\u7a7a\u95f4\uff09\uff0c\u4f46\u5b9e\u9645\u4e0a\u53ea\u6709\u6b63\u5728\u8fd0\u884c\u7684 go \u4ee3\u7801\u7684 M \u624d\u9700\u8981 mcache\uff08\u963b\u585e\u5728\u7cfb\u7edf\u8c03\u7528\u7684 M \u4e0d\u9700\u8981 mcache\uff09\u3002\u8fd0\u884c go \u4ee3\u7801\u7684 M \u548c\u7cfb\u7edf\u8c03\u7528\u963b\u585e\u7684 M \u6bd4\u4f8b\u5927\u6982\u5728 1:100\uff0c\u8fd9\u5c31\u5bfc\u81f4\u4e86\u5927\u91cf\u7684\u8d44\u6e90\u6d88\u8017\uff08\u6bcf\u4e2a mcache \u4f1a\u5360\u7528\u5230 2M\uff09\u4ee5\u53ca poor data locality\uff08poor data locality\u627e\u4e0d\u5230\u597d\u7684\u7ffb\u8bd1\uff0c\u610f\u601d\u5927\u6982\u662f\u5185\u5b58\u7f13\u5b58\u547d\u4e2d\u4f1a\u5f88\u5c11\uff0c\u5bfc\u81f4\u5185\u5b58\u7f13\u5b58\u65e0\u6548\uff0c\u53ef\u53c2\u8003\u8fd9\u91cc\uff1a<a class=\"wp-editor-md-post-content-link\" href=\"https:\/\/www.quora.com\/What-does-it-mean-that-hash-sets-have-poor-data-locality\">What does it mean that hash sets have poor data locality?<\/a>\uff09<\/p>\n<\/li>\n<li>\n<p>\u6fc0\u8fdb\u7684\u7ebf\u7a0b\u963b\u585e\/\u89e3\u963b\u585e\u3002\u56e0\u4e3a\u7cfb\u7edf\u8c03\u7528\u5bfc\u81f4\u5de5\u4f5c\u7ebf\u7a0b\u7ecf\u5e38\u88ab\u963b\u585e\u548c\u89e3\u963b\u585e\uff0c\u8fd9\u589e\u52a0\u4e86\u5f88\u591a\u7684\u8d1f\u62c5\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u4e0a\u9762\u5c31\u662f4\u4e2a\u5173\u4e8e go 1.0 \u4e2d\u8c03\u5ea6\u5668\u7684\u95ee\u9898\u6240\u5728\u3002<code>Dmitry Vyukov<\/code> \u56e0\u6b64\u63d0\u51fa\u4e86\u65b0\u7684\u8c03\u5ea6\u7b97\u6cd5\uff0c\u5e76\u5728 go 1.1 \u4e2d\u53d1\u5e03\u3002<\/p>\n<h2>\u4e09\u3001go 1.1 \u4e4b\u540e\u7684\u8c03\u5ea6\u5668\u5b9e\u73b0\u65b9\u6848<\/h2>\n<p>\u9488\u5bf9\u5728 1.0 \u4e2d\u8c03\u5ea6\u5668\u5b9e\u73b0\u7684\u95ee\u9898\uff0cgo 1.1 \u5728 M, G \u7684\u57fa\u7840\u4e0a\uff0c\u5f15\u5165\u4e86\u65b0\u7684\u89d2\u8272 P\uff08processor\uff09\u3002\u4ee5\u4e0b\u7b80\u5355\u5217\u51fa\u65b0\u7684\u8c03\u5ea6\u7b97\u6cd5\u7684\u6539\u8fdb\u70b9\uff1a<\/p>\n<ul>\n<li>\u65b0\u89d2\u8272 P \u4ee3\u66ff\u4e86 M \u7684\u4e00\u90e8\u5206\u529f\u80fd\uff0cM \u7684 mcache \u73b0\u5728\u5c5e\u4e8e P \u4e86\uff0c\u5e76\u4e14 P \u7684\u6570\u91cf\u7b49\u4e8e GOMAXPROCS\u3002M \u8981\u6267\u884c G \u7684\u65f6\u5019\uff0c\u5c31\u88ab\u8c03\u5ea6\u7ed1\u5b9a\u4e00\u4e2a P\uff0c\u7136\u540e\u53bb\u6267\u884c G\uff0c\u8fd9\u6837\u5bf9\u5185\u5b58\u7684\u5360\u7528\u5c31\u5927\u5927\u51cf\u5c11\u3002<\/li>\n<li>\u6bcf\u4e2a P \u90fd\u6709\u81ea\u5df1\u7684 goroutine \u961f\u5217 runq\uff0c\u65b0\u7684 G \u5c31\u653e\u5230\u81ea\u5df1\u7684 runq \u4e0a\uff0c\u6ee1\u4e86\u4e4b\u540e\u518d\u653e\u5230\u5168\u5c40\u7684 runq\uff0c\u4f18\u5148\u6267\u884c\u81ea\u5df1\u7684 runq\u3002\u8fd9\u6837\u7684\u8bbe\u8ba1\u5927\u5927\u51cf\u5c11\u4e86\u9501\u7684\u4e89\u7528\uff0c\u5e76\u4e14\u53ef\u4ee5\u4fdd\u8bc1\u5c3d\u91cf\u5c11\u7684\u5728\u591a\u4e2a\u6838\u5fc3\u4e0a\u4f20\u9012 G\u3002<\/li>\n<li>\u5f53 G \u6267\u884c\u7f51\u7edc\u64cd\u4f5c\u548c\u9501\u5207\u6362\u65f6\uff0cG \u548c M \u5206\u79bb\uff0cM \u901a\u8fc7\u8c03\u5ea6\u6267\u884c\u65b0\u7684 G\u3002\u8fd9\u6837\u5c31\u53ef\u4ee5\u4fdd\u8bc1\u7528\u6237\u5728 G \u4e2d\u6267\u884c\u7f51\u7edc\u64cd\u4f5c\u65f6\u4e0d\u7528\u8003\u8651\u963b\u585e\u7ebf\u7a0b\u7684\u95ee\u9898\u3002<\/li>\n<li>\u5f53 M \u56e0\u4e3a\u6267\u884c\u7cfb\u7edf\u8c03\u7528\u963b\u585e\u6216 cgo \u8fd0\u884c\u4e00\u6bb5\u65f6\u95f4\u540e\uff0csysmon \u534f\u7a0b\u4f1a\u5c06 P \u548c M\u5206\u79bb\uff0c\u7531\u5176\u4ed6\u7684 M \u6765\u7ed3\u5408 P \u8fdb\u884c\u8c03\u5ea6\u3002\u8fd9\u6837 M \u5c31\u4e0d\u7528\u56e0\u4e3a\u963b\u585e\u800c\u5360\u7528\u4e0d\u5fc5\u8981\u7684\u8d44\u6e90\u3002<\/li>\n<\/ul>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u6bd4\u8f83\u6613\u61c2\u7684\u56fe\u4f8b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2020\/02\/our-cast.jpg\" alt=\"cast\" \/><\/p>\n<p>M \u662f\u5185\u6838\u7ebf\u7a0b\uff0cP \u662f\u8c03\u5ea6\u7684\u4e0a\u4e0b\u6587\uff0cG \u662f goroutine\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2020\/02\/in-motion.jpg\" alt=\"in-motion\" \/><\/p>\n<p>\u8fd9\u91cc\u53ef\u4ee5\u770b\u5230\u3002M \u7ed1\u5b9a\u4e00\u4e2a P \u6765\u6267\u884c G\uff0c\u7070\u8272\u90e8\u5206\u4ee3\u8868\u5f85\u6267\u884c\u7684\u3001\u53ea\u5c5e\u4e8e P \u7684 goroutine \u961f\u5217\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2020\/02\/syscall.jpg\" alt=\"syscall\" \/><\/p>\n<p>M0 \u7ebf\u7a0b\u56e0\u4e3a\u6267\u884c syscall \u5bfc\u81f4\u963b\u585e\uff0c\u56e0\u6b64\u8c03\u5ea6\u7b97\u6cd5\u5c06\u5176\u548c P \u5206\u79bb\uff0c\u9632\u6b62\u5176\u5360\u7528 P \u7684\u8d44\u6e90\uff0c\u7136\u540e\u5c06 P \u5206\u7ed9 M1 \u6765\u6267\u884c\u5269\u4e0b\u7684 goroutine\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2020\/02\/steal.jpg\" alt=\"steal\" \/><\/p>\n<p>\u7b2c\u4e8c\u4e2a P \u4e2d\u7684 goroutine \u5df2\u7ecf\u6267\u884c\u7ed3\u675f\u3002\u56e0\u6b64\u4ece\u7b2c\u4e00\u4e2a P \u4e2d\u201c\u5077\u6765\u201d\u4e00\u90e8\u5206\u7684 goroutine \u6267\u884c\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u6bd4\u8f83\u8be6\u7ec6\u7684 GPM \u6a21\u578b\u793a\u610f\u56fe\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2020\/02\/Picture1.png\" alt=\"gpm\" \/><\/p>\n<h2>\u56db\u3001\u9644\u52a0\u7684\u53c2\u8003\u8d44\u6599<\/h2>\n<p>\u4e0b\u9762\u7684\u4e00\u4e9b\u56fe\u7247\u662f\u4ece\u817e\u8baf\u6280\u672f\u56e2\u961f\u5206\u4eab\u7684 PPT \u4e2d\u622a\u53d6\u7684\uff0cPPT \u5730\u5740\uff1a<a class=\"wp-editor-md-post-content-link\" href=\"https:\/\/github.com\/yifhao\/share\">\u6df1\u5165\u6d45\u51faGolang Runtime<br \/>\n<\/a><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2020\/02\/go-runtime-changelog.png\" alt=\"go-runtime\" \/><\/p>\n<h2>\u4e94\u3001\u53c2\u8003\u6587\u6863<\/h2>\n<ul>\n<li><a class=\"wp-editor-md-post-content-link\" href=\"http:\/\/morsmachine.dk\/go-scheduler\">The Go scheduler &#8211; Morsing&#8217;s blog<\/a><\/li>\n<li><a class=\"wp-editor-md-post-content-link\" href=\"https:\/\/www.jianshu.com\/p\/5a4fc2729c17\">\u5185\u6838\u7ebf\u7a0b\u4e0e\u7528\u6237\u7ebf\u7a0b\u7684\u4e00\u70b9\u5c0f\u603b\u7ed3 \u300a\u7a0b\u5e8f\u5458\u7684\u81ea\u6211\u4fee\u517b\u300b\u00b7\u7b14\u8bb0<\/a><\/li>\n<li><a class=\"wp-editor-md-post-content-link\" href=\"https:\/\/medium.com\/a-journey-with-go\/go-concurrency-scheduler-affinity-3b678f490488\">Go: Concurrency &amp; Scheduler Affinity<\/a><\/li>\n<li><a class=\"wp-editor-md-post-content-link\" href=\"https:\/\/docs.google.com\/document\/d\/1TTj4T2JO42uD5ID9e89oa0sLKhJYD0Y_kqxDv3I3XMw\/edit#\">Scalable Go Scheduler Design Doc<\/a><\/li>\n<li><a class=\"wp-editor-md-post-content-link\" href=\"https:\/\/www.zhihu.com\/question\/20862617\">Golang \u7684 goroutine \u662f\u5982\u4f55\u5b9e\u73b0\u7684\uff1f<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001\u6982\u8ff0 goroutine \u662f go \u8bed\u8a00\u7684\u7279\u8272\u4e4b\u4e00\uff0c\u5728 go \u8bed\u8a00\u4e2d\uff0c\u4f60\u53ef\u4ee5\u8f7b\u6613\u7684\u4f7f\u7528 go \u5173\u952e\u5b57\u6765\u521b\u5efa &hellip; <a href=\"https:\/\/www.myway5.com\/index.php\/2020\/02\/01\/go-scheduler\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">go \u8c03\u5ea6\u5668\u7684\u5b9e\u73b0<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[67],"tags":[],"class_list":["post-558","post","type-post","status-publish","format-standard","hentry","category-go"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>go \u8c03\u5ea6\u5668\u7684\u5b9e\u73b0 - \u4e00\u53ea\u5b89\u9759\u7684\u732b<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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