{"id":57608,"date":"2024-10-10T19:40:23","date_gmt":"2024-10-10T11:40:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/57608\/"},"modified":"2024-10-10T19:40:23","modified_gmt":"2024-10-10T11:40:23","slug":"go%e6%95%99%e7%a8%8b-go-%e8%aa%9e%e8%a8%80-gomaxprocs%ef%bc%88%e8%aa%bf%e6%95%b4%e4%b8%a6%e7%99%bc%e7%9a%84%e9%81%8b%e8%a1%8c%e6%80%a7%e8%83%bd%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/57608\/","title":{"rendered":"GO\u6559\u7a0b: Go \u8a9e\u8a00 GOMAXPROCS\uff08\u8abf\u6574\u4e26\u767c\u7684\u904b\u884c\u6027\u80fd\uff09"},"content":{"rendered":"

GO\u6559\u7a0b: Go \u8a9e\u8a00 GOMAXPROCS\uff08\u8abf\u6574\u4e26\u767c\u7684\u904b\u884c\u6027\u80fd\uff09<\/h1>\n

\u5728\u7576\u4eca\u7684\u8edf\u9ad4\u958b\u767c\u4e2d\uff0c\u4e26\u767c\u6027\u662f\u63d0\u5347\u61c9\u7528\u7a0b\u5f0f\u6027\u80fd\u7684\u95dc\u9375\u56e0\u7d20\u4e4b\u4e00\u3002Go \u8a9e\u8a00\u4f5c\u70ba\u4e00\u7a2e\u8a2d\u8a08\u4e0a\u5c31\u8003\u616e\u5230\u4e26\u767c\u7684\u8a9e\u8a00\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u5de5\u5177\u4f86\u5e6b\u52a9\u958b\u767c\u8005\u6709\u6548\u5730\u7ba1\u7406\u4e26\u767c\u57f7\u884c\u3002GOMAXPROCS \u662f Go \u8a9e\u8a00\u4e2d\u7684\u4e00\u500b\u91cd\u8981\u6982\u5ff5\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u8abf\u6574\u4e26\u767c\u7684\u904b\u884c\u6027\u80fd\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e GOMAXPROCS \u7684\u529f\u80fd\u53ca\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n

\u4ec0\u9ebc\u662f GOMAXPROCS\uff1f<\/h2>\n

GOMAXPROCS \u662f Go \u8a9e\u8a00\u4e2d\u7684\u4e00\u500b\u5168\u5c40\u8b8a\u6578\uff0c\u7528\u65bc\u8a2d\u5b9a Go \u8a9e\u8a00\u904b\u884c\u6642\u53ef\u4ee5\u4f7f\u7528\u7684\u6700\u5927 CPU \u6838\u5fc3\u6578\u3002\u9019\u500b\u8a2d\u7f6e\u76f4\u63a5\u5f71\u97ff\u5230 Go \u7a0b\u5e8f\u7684\u4e26\u767c\u6027\u80fd\uff0c\u56e0\u70ba\u5b83\u6c7a\u5b9a\u4e86\u53ef\u4ee5\u540c\u6642\u904b\u884c\u7684 goroutine \u6578\u91cf\u3002\u9ed8\u8a8d\u60c5\u6cc1\u4e0b\uff0cGOMAXPROCS \u7684\u503c\u7b49\u65bc\u53ef\u7528\u7684 CPU \u6838\u5fc3\u6578\uff0c\u4f46\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u9700\u8981\u9032\u884c\u8abf\u6574\u3002<\/p>\n

\u5982\u4f55\u4f7f\u7528 GOMAXPROCS\uff1f<\/h2>\n

\u5728 Go \u8a9e\u8a00\u4e2d\uff0c\u4f7f\u7528 runtime \u5305\u4e2d\u7684 GOMAXPROCS \u51fd\u6578\u4f86\u8a2d\u7f6e\u548c\u7372\u53d6\u7576\u524d\u7684 GOMAXPROCS \u503c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u7684\u7528\u6cd5\u793a\u4f8b\uff1a<\/p>\n

package main\n\nimport (\n    \"fmt\"\n    \"runtime\"\n)\n\nfunc main() {\n    \/\/ \u7372\u53d6\u7576\u524d\u7684 GOMAXPROCS \u503c\n    current := runtime.GOMAXPROCS(0)\n    fmt.Println(\"\u7576\u524d GOMAXPROCS \u503c:\", current)\n\n    \/\/ \u8a2d\u7f6e GOMAXPROCS \u503c\u70ba 4\n    runtime.GOMAXPROCS(4)\n    fmt.Println(\"\u5df2\u8a2d\u7f6e GOMAXPROCS \u503c\u70ba 4\")\n}\n<\/code><\/pre>\n
GOMAXPROCS \u7684\u5f71\u97ff<\/h2>\n
\u8abf\u6574 GOMAXPROCS \u7684\u503c\u53ef\u4ee5\u986f\u8457\u5f71\u97ff\u61c9\u7528\u7a0b\u5f0f\u7684\u6027\u80fd\u3002\u7576 GOMAXPROCS \u7684\u503c\u8a2d\u7f6e\u70ba\u9ad8\u65bc\u53ef\u7528 CPU \u6838\u5fc3\u6578\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u4e0a\u4e0b\u6587\u5207\u63db\u7684\u958b\u92b7\u589e\u52a0\uff0c\u5f9e\u800c\u5f71\u97ff\u6027\u80fd\u3002\u56e0\u6b64\uff0c\u6700\u4f73\u7684\u505a\u6cd5\u662f\u5c07 GOMAXPROCS \u8a2d\u7f6e\u70ba\u8207\u53ef\u7528 CPU \u6838\u5fc3\u6578\u76f8\u7b49\u6216\u7565\u4f4e\u7684\u503c\u3002<\/p>\n
\u5be6\u969b\u6848\u4f8b<\/h3>\n
\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u9700\u8981\u8655\u7406\u5927\u91cf\u8acb\u6c42\u7684 Web \u670d\u52d9\u5668\uff0c\u4e26\u4e14\u6211\u5011\u5e0c\u671b\u6700\u5927\u5316\u5176\u6027\u80fd\u3002\u901a\u904e\u8a2d\u7f6e GOMAXPROCS\uff0c\u6211\u5011\u53ef\u4ee5\u78ba\u4fdd\u670d\u52d9\u5668\u80fd\u5920\u5145\u5206\u5229\u7528\u6240\u6709\u53ef\u7528\u7684 CPU \u6838\u5fc3\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n
package main\n\nimport (\n    \"fmt\"\n    \"net\/http\"\n    \"runtime\"\n)\n\nfunc handler(w http.ResponseWriter, r *http.Request) {\n    fmt.Fprintf(w, \"Hello, World!\")\n}\n\nfunc main() {\n    \/\/ \u8a2d\u7f6e GOMAXPROCS\n    runtime.GOMAXPROCS(runtime.NumCPU())\n\n    http.HandleFunc(\"\/\", handler)\n    http.ListenAndServe(\":8080\", nil)\n}\n<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5c07 GOMAXPROCS \u8a2d\u7f6e\u70ba\u53ef\u7528\u7684 CPU \u6838\u5fc3\u6578\uff0c\u7136\u5f8c\u555f\u52d5\u4e00\u500b\u7c21\u55ae\u7684 HTTP \u670d\u52d9\u5668\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u670d\u52d9\u5668\u5728\u8655\u7406\u8acb\u6c42\u6642\u80fd\u5920\u5145\u5206\u5229\u7528\u6240\u6709\u7684 CPU \u8cc7\u6e90\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
GOMAXPROCS \u662f Go \u8a9e\u8a00\u4e2d\u4e00\u500b\u91cd\u8981\u7684\u6027\u80fd\u8abf\u6574\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u6709\u6548\u5730\u7ba1\u7406\u4e26\u767c\u57f7\u884c\u3002\u901a\u904e\u5408\u7406\u8a2d\u7f6e GOMAXPROCS \u7684\u503c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u986f\u8457\u63d0\u5347\u61c9\u7528\u7a0b\u5f0f\u7684\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u9ad8\u4e26\u767c\u7684\u5834\u666f\u4e0b\u3002\u4e86\u89e3\u4e26\u5584\u7528 GOMAXPROCS \u5c0d\u65bc\u6bcf\u4e00\u4f4d Go \u958b\u767c\u8005\u4f86\u8aaa\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684 Go \u61c9\u7528\u7a0b\u5f0f\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u5be6\u73fe\u6700\u4f73\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3 Go \u8a9e\u8a00\u4e2d\u7684 GOMAXPROCS\uff0c\u5b78\u7fd2\u5982\u4f55\u8abf\u6574\u4e26\u767c\u6027\u80fd\u4ee5\u63d0\u5347\u61c9\u7528\u6548\u80fd\uff0c\u5be6\u73fe\u6700\u4f73\u904b\u884c\u6548\u7387\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-57608","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57608","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=57608"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57608\/revisions"}],"predecessor-version":[{"id":57609,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57608\/revisions\/57609"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=57608"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=57608"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=57608"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}