{"id":2191,"date":"2020-11-11T19:26:46","date_gmt":"2020-11-11T11:26:46","guid":{"rendered":"http:\/\/www.u3d8.com\/?p=2191"},"modified":"2020-11-11T19:27:15","modified_gmt":"2020-11-11T11:27:15","slug":"unity%e7%a6%81%e7%94%a8gc%e5%9e%83%e5%9c%be%e8%87%aa%e5%8a%a8%e5%9b%9e%e6%94%b6","status":"publish","type":"post","link":"http:\/\/www.u3d8.com\/?p=2191","title":{"rendered":"Unity\u7981\u7528GC\u5783\u573e\u56de\u6536"},"content":{"rendered":"\n
\"Unity\u7981\u7528GC\u5783\u573e\u56de\u6536<\/figure>\n\n\n\n

\u4f55\u65f6\u89e6\u53d1GC<\/strong><\/h4>\n\n\n\n

1.\u5728\u5806\u5185\u5b58\u4e0a\u8fdb\u884c\u5185\u5b58\u5206\u914d\u64cd\u4f5c\u65f6\u800c\u5185\u5b58\u4e0d\u591f\u7684\u65f6\u5019\u90fd\u4f1a\u89e6\u53d1\u5783\u573e\u56de\u6536<\/p>\n\n\n\n

2.GC\u4f1a\u81ea\u52a8\u7684\u89e6\u53d1\uff0c\u4e0d\u540c\u5e73\u53f0\u8fd0\u884c\u9891\u7387\u4e0d\u4e00\u6837<\/p>\n\n\n\n

3.GC\u53ef\u4ee5\u88ab\u5f3a\u5236\u6267\u884c<\/p>\n\n\n\n

\u7279\u522b\u662f\u5728\u5806\u5185\u5b58\u4e0a\u8fdb\u884c\u5185\u5b58\u5206\u914d\u65f6\u5185\u5b58\u5355\u5143\u4e0d\u8db3\u591f\u7684\u65f6\u5019\uff0cGC\u4f1a\u88ab\u9891\u7e41\u89e6\u53d1\uff0c\u8fd9\u5c31\u610f\u5473\u7740\u9891\u7e41\u5728\u5806\u5185\u5b58\u4e0a\u8fdb\u884c\u5185\u5b58\u5206\u914d\u548c\u56de\u6536\u4f1a\u89e6\u53d1\u9891\u7e41\u7684GC\u64cd\u4f5c\u3002<\/p>\n\n\n\n

\u4e3a\u4f55\u7981\u7528<\/h4>\n\n\n\n

\u5982\u679c\u4f7f\u7528\u7684\u662f Mono \u6216 IL2CPP \u811a\u672c\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u7981\u7528\u5783\u573e\u56de\u6536\uff0c\u6765\u907f\u514d\u56e0\u4e3a\u5783\u573e\u56de\u6536\u5bfc\u81f4\u7684CPU\u4f7f\u7528\u7387\u6fc0\u589e\u3002<\/p>\n\n\n\n

\u4ee5\u727a\u7272\u63d0\u9ad8\u5185\u5b58\u5360\u7528\uff0c\u6765\u964d\u4f4eCPU\u4f7f\u7528\u7387\uff0c\u63d0\u5347\u6e38\u620f\u5e27\u7387\u5e73\u6ed1\u6027\u3002<\/p>\n\n\n\n

\u5728 iOS \u4e0a\u4f7f\u7528\u6b64\u7b56\u7565\u65f6\u7684\u5178\u578b\u5806\u5927\u5c0f\u7ea6\u4e3a 200KB\uff0c\u5728 iPhone 3G \u4e0a\u7684\u5783\u573e\u6536\u96c6\u65f6\u95f4\u5927\u7ea6\u9700\u8981 5ms\u3002\u5982\u679c\u5806\u5927\u5c0f\u589e\u52a0\u5230 1MB\uff0c\u5219\u6536\u96c6\u65f6\u95f4\u5c06\u5927\u7ea6\u9700\u8981 7ms\u3002<\/p>\n\n\n\n

\u5e94\u7528\u573a\u666f<\/h4>\n\n\n\n

\u800c\u901a\u8fc7\u4f7f\u7528\u56fa\u5b9a\u65f6\u95f4\u95f4\u9694\u3001\u6216\u8005\u5728\u56fa\u5b9a\u573a\u666f\uff0c\u6bd4\u5982\uff1a\u8bfb\u53d6\u8fdb\u5ea6\u6761\u3001\u573a\u666f\u52a0\u8f7d\u3001\u6e38\u620f\u6682\u505c\u7b49\u573a\u666f\u4e3b\u52a8\u8c03\u7528\u91ca\u653eGC<\/p>\n\n\n\n

\u7981\u7528GC \u5728 WebGL \u5e73\u53f0\u4e0a\u548c\u7f16\u8f91\u5668\u4e2d\u4e0d\u53d7\u652f\u6301<\/p>\n\n\n\n

\u7981\u7528\u8bf4\u660e<\/h4>\n\n\n\n

\u7981\u7528\u5783\u573e\u56de\u6536\u5668 \u901a\u8fc7\u5206\u914d GarbageCollector.Mode.Disabled<\/a> \u53ef\u4ee5\u5b8c\u5168\u7981\u7528\u5783\u573e\u56de\u6536\u5668\u3002\u8fd9\u610f\u5473\u7740\u5783\u573e\u56de\u6536\u5668\u7ebf\u7a0b\u5c06\u6c38\u8fdc\u4e0d\u4f1a\u505c\u6b62\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u6765\u6267\u884c\u6536\u96c6\u3002\u6b64\u5916\uff0c\u8c03\u7528 System.GC.Collect() \u5c06\u65e0\u6548\u5e76\u4e14\u4e0d\u4f1a\u542f\u52a8\u6536\u96c6\u3002\u7981\u7528\u5783\u573e\u56de\u6536\u5668\u5fc5\u987b\u975e\u5e38\u5c0f\u5fc3\uff0c\u56e0\u4e3a\u7981\u7528\u5783\u573e\u56de\u6536\u5668\u540e\u7684\u6301\u7eed\u5206\u914d\u5c06\u5bfc\u81f4\u5185\u5b58\u4f7f\u7528\u91cf\u7684\u6301\u7eed\u589e\u52a0\u3002<\/p>\n\n\n\n

\u5efa\u8bae\u4ec5\u4e3a\u957f\u671f\u7684\u5206\u914d\u7981\u7528\u5783\u573e\u56de\u6536\u5668\u3002\u4f8b\u5982\uff0c\u5728\u6e38\u620f\u4e2d\uff0c\u5e94\u8be5\u4e3a\u4e00\u4e2a\u5173\u5361\u5206\u914d\u6240\u6709\u5fc5\u9700\u7684\u5185\u5b58\uff0c\u7136\u540e\u7981\u7528\u5783\u573e\u56de\u6536\u5668\u4ee5\u907f\u514d\u5173\u5361\u671f\u95f4\u7684\u5f00\u9500\u3002\u5728\u5173\u5361\u7ed3\u675f\u5e76\u91ca\u653e\u6240\u6709\u5185\u5b58\u4e4b\u540e\uff0c\u53ef\u4ee5\u518d\u6b21\u542f\u7528\u5783\u573e\u56de\u6536\u5668\uff0c\u5e76\u53ef\u5728\u52a0\u8f7d\u4e0b\u4e00\u5173\u5361\u4e4b\u524d\u8c03\u7528 System.GC.Collect() \u6765\u56de\u6536\u5185\u5b58\u3002<\/p>\n\n\n\n

\u4ee3\u7801\uff1a<\/p>\n\n\n\n

using System;\nusing UnityEngine;\nusing UnityEngine.Scripting;\n\npublic class GarbageCollectorExample\n{\n    static void ListenForGCModeChange()\n    {\n        \/\/ Listen on garbage collector mode changes.\n        GarbageCollector.GCModeChanged += (GarbageCollector.Mode mode) =>\n        {\n            Debug.Log(\"GCModeChanged: \" + mode);\n        };\n    }\n\n    static void LogMode()\n    {\n        Debug.Log(\"GCMode: \" + GarbageCollector.GCMode);\n    }\n\n    static void EnableGC()\n    {\n        GarbageCollector.GCMode = GarbageCollector.Mode.Enabled;\n        \/\/ Trigger a collection to free memory.\n        GC.Collect();\n    }\n\n    static void DisableGC()\n    {\n        GarbageCollector.GCMode = GarbageCollector.Mode.Disabled;\n    }\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u4f55\u65f6\u89e6\u53d1GC 1.\u5728\u5806\u5185\u5b58\u4e0a\u8fdb\u884c\u5185\u5b58\u5206\u914d\u64cd\u4f5c\u65f6\u800c\u5185\u5b58\u4e0d\u591f\u7684\u65f6\u5019\u90fd\u4f1a\u89e6\u53d1\u5783\u573e\u56de\u6536  … \u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4,252],"tags":[398,399],"_links":{"self":[{"href":"http:\/\/www.u3d8.com\/index.php?rest_route=\/wp\/v2\/posts\/2191"}],"collection":[{"href":"http:\/\/www.u3d8.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.u3d8.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.u3d8.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.u3d8.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2191"}],"version-history":[{"count":5,"href":"http:\/\/www.u3d8.com\/index.php?rest_route=\/wp\/v2\/posts\/2191\/revisions"}],"predecessor-version":[{"id":2197,"href":"http:\/\/www.u3d8.com\/index.php?rest_route=\/wp\/v2\/posts\/2191\/revisions\/2197"}],"wp:attachment":[{"href":"http:\/\/www.u3d8.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2191"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.u3d8.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2191"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.u3d8.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}