{"id":163,"date":"2024-04-21T22:42:31","date_gmt":"2024-04-21T14:42:31","guid":{"rendered":"https:\/\/yewpo.top\/?p=163"},"modified":"2024-04-21T22:42:31","modified_gmt":"2024-04-21T14:42:31","slug":"k2-%e7%a7%bb%e5%8a%a8%e6%93%8d%e4%bd%9c%e7%b3%bb%e7%bb%9f%e6%91%98%e8%a6%81","status":"publish","type":"post","link":"https:\/\/www.yewpo.top\/index.php\/163\/","title":{"rendered":"K2 \u79fb\u52a8\u64cd\u4f5c\u7cfb\u7edf\u6458\u8981"},"content":{"rendered":"<h2>1 \u95ee\u9898\u80cc\u666f<\/h2>\n<p>\u5982\u4eca\u7684\u79fb\u52a8\u8bbe\u5907\u9762\u4e34\u7740\u5de8\u5927\u7684\u5de5\u4f5c\u91cf\uff0c\u8fd9\u4e9b\u5de5\u4f5c\u91cf\u6765\u81ea\u4e8e\u4e00\u4e9b\u975e\u4ea4\u4e92\u5e94\u7528\uff0c\u7c7b\u4f3c\u4e8e\u56fe\u7247\u6e32\u67d3\u7b49\u540e\u53f0\u8fdb\u7a0b\u3002\u540c\u65f6\uff0c\u79fb\u52a8\u8bbe\u5907\u4e3a\u4e86\u80fd\u591f\u8fbe\u5230\u8f83\u9ad8\u7684\u80fd\u6548\uff0c SoC 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\u5206\u949f\u3002<\/li>\n<\/ul>\n<p>\u5bf9\u4e8e\u5fae\u4efb\u52a1\u7684\u80fd\u91cf\u6d88\u8017\u7684\u7279\u6027\uff0c\u6709\u4ee5\u4e0b\u4e09\u4e2a\uff1a<\/p>\n<ul>\n<li>\u4f9b\u7535\u72b6\u6001\u7684\u8fdb\u5165\u548c\u9000\u51fa\u5bf9\u7535\u6c60\u7684\u6d88\u8017\u5f88\u9ad8\u3002\u5f3a\u5927\u7684\u5904\u7406\u5668\u6838\u5fc3\u5728\u5927\u591a\u6570\u65f6\u95f4\u5185\u90fd\u662f\u975e\u6d3b\u8dc3\u7684\u72b6\u6001\uff0c\u5468\u671f\u6027\u7684\u5fae\u4efb\u52a1\u4e0d\u53ef\u907f\u514d\u7684\u65f6\u4e0d\u65f6\u7684\u5524\u9192\u5b83\u4eec\u3002<\/li>\n<li>\u9ad8\u6602\u7684\u7a7a\u95f2\u80fd\u91cf\u6d88\u8017\u3002\u5f3a\u5927\u7684\u5904\u7406\u5668\u6838\u5fc3\u7ecf\u5e38\u6709\u77ed\u6682\u7684\u7a7a\u95f2\uff0c\u8fd9\u4e9b\u7a7a\u95f2\u671f\u95f4\u5bf9\u80fd\u91cf\u7684\u6d88\u8017\u5f88\u9ad8\u3002<\/li>\n<li>\u8fc7\u5269\u7684\u6027\u80fd\u3002<\/li>\n<\/ul>\n<p>\u6b64\u5916\uff0c\u5bf9\u4e8e\u67b6\u6784\u6765\u8bf4\uff0c\u4e00\u81f4\u6027\u7684\u5f02\u6784 SoC 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\u89e3\u51b3\u65b9\u6848<\/h2>\n<p>\u57fa\u4e8e 1 \u8282\u4e2d\u6240\u63d0\u5230\u7684\u80cc\u666f\u548c\u95ee\u9898\uff0c\u4f5c\u8005\u63d0\u51fa\u4e86 K2 \u79fb\u52a8\u64cd\u4f5c\u7cfb\u7edf\u3002\u4e0d\u540c\u4e8e\u524d\u6587\u63d0\u5230\u7684\u5b8c\u5168\u4e0d\u5171\u4eab\uff08\u53ea\u5728\u4e00\u4e2a\u57df\u5185\u63d0\u4f9b\u64cd\u4f5c\u7cfb\u7edf\u670d\u52a1\uff09\u548c\u5b8c\u5168\u5171\u4eab\uff08\u5206\u89e3\u64cd\u4f5c\u7cfb\u7edf\u670d\u52a1\u5728\u591a\u4e2a\u57df\u4e2d\uff09\uff0cK2 \u5728\u4e24\u8005\u4e2d\u53d6\u4e86\u5e73\u8861\uff0c\u5c3d\u53ef\u80fd\u5730\u5171\u4eab\u64cd\u4f5c\u7cfb\u7edf\u670d\u52a1\uff0c\u800c\u4e14\u53ef\u4ee5\u505a\u5230\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n<ul>\n<li>\u4fdd\u7559\u73b0\u6709\u7684\u7f16\u7a0b\u6a21\u578b\uff0c\u5e76\u4e14\u63d0\u4f9b\u4e86\u4e00\u4e2a\u4e3a\u4eba\u719f\u6089\u7684\u62bd\u8c61\u2014\u2014 NightWatch \u7ebf\u7a0b\uff0c\u7528\u6765\u5206\u53d1\u7528\u6237\u5de5\u4f5c\u6d41\u5230\u5f02\u6784\u57df\u4e2d\u3002<\/li>\n<li>\u590d\u7528\u5185\u6838\u670d\u52a1\uff0c\u4e5f\u590d\u7528\u5185\u6838\u8d44\u6e90\u3002<\/li>\n<li>\u901a\u8fc7\u7f13\u89e3\u57df\u95f4\u4e89\u7528\u6765\u7ef4\u6301\u73b0\u5728\u7684\u64cd\u4f5c\u7cfb\u7edf\u7684\u6027\u80fd\uff1a\u5b83\u521b\u5efa\u6838\u5fc3\u64cd\u4f5c\u7cfb\u7edf\u670d\u52a1\u7684\u72ec\u7acb\u5b9e\u4f8b\u5e76\u9002\u5f53\u534f\u8c03\u5b83\u4eec\u3002\u8fd9\u6837\u7684\u4e0d\u5bf9\u79f0\u6027\u539f\u5219\uff0c\u6709\u5229\u4e8e\u63d0\u9ad8\u5f3a\u57df\u7684\u6027\u80fd\u3002<\/li>\n<\/ul>\n<p>\u4e0b\u6587\u4ecb\u7ecd K2 \u7684\u5177\u4f53\u5b9e\u73b0\u3002<\/p>\n<h3>2.1 share-most OS model<\/h3>\n<p>\u4e3a\u4e86\u8fbe\u5230\u4e0a\u8ff0\u63d0\u5230\u7684\u51e0\u4e2a\u76ee\u7684\uff0c\u4f5c\u8005\u63d0\u51fa\u4e86 <code>share-most<\/code> \u64cd\u4f5c\u7cfb\u7edf\u6a21\u578b\u3002\u8be5\u6a21\u578b<strong>\u900f\u660e\u5730\u7ef4\u62a4\u62d3\u5c55\u670d\u52a1\u7684\u72b6\u6001\u4e00\u81f4\u6027<\/strong>\uff0c<strong>\u534f\u8c03\u5206\u79bb\u7684\u4e3b\u8981\u670d\u52a1<\/strong>\uff0c\u5e76\u4e14<strong>\u963b\u6b62\u5355\u4e2a\u8fdb\u7a0b\u7684\u591a\u4e2a\u57df\u7684\u5e76\u53d1\u6267\u884c<\/strong>\u3002<\/p>\n<ul>\n<li>\u900f\u660e\u5730\u4e3a\u62d3\u5c55\u670d\u52a1\u5171\u4eab\u72b6\u6001\uff1a\u8fd9\u4e9b\u670d\u52a1\u7684\u4f7f\u7528\u9891\u7387\u8f83\u5c0f\uff0c\u662f\u64cd\u4f5c\u7cfb\u7edf\u4ee3\u7801\u7684\u4e3b\u8981\u90e8\u5206\u800c\u4e14\u8fed\u4ee3\u5f88\u5feb\u3002\u8fd9\u4e9b\u7279\u5f81\u5bfc\u81f4\u4e86\u5f88\u96be\u4eba\u5de5\u5730\u5c06\u4ed6\u4eec\u8f6c\u79fb\u5230\u591a\u4e2a\u57df\u4e0a\uff0c\u57df\u95f4\u51b2\u7a81\u7684\u6982\u7387\u4e5f\u5f88\u5c0f\u3002\u6240\u4ee5\u8fd9\u4e9b\u670d\u52a1\u66f4\u5e94\u8be5\u7531\u64cd\u4f5c\u7cfb\u7edf\u6765\u7ef4\u62a4\u4ed6\u4eec\u7684\u72b6\u6001\u4e00\u81f4\u6027\u3002<\/li>\n<li>\u72ec\u7acb\u5b9e\u4f8b\u5316\u4e3b\u8981\u670d\u52a1\uff1a\u5bf9\u64cd\u4f5c\u7cfb\u7edf\u7684\u4e3b\u8981\u670d\u52a1\uff0c\u4e3a\u6bcf\u4e00\u4e2a\u57df\u521b\u5efa\u72ec\u7acb\u7684\u5b9e\u4f8b\uff0c\u5b9e\u4f8b\u4e4b\u95f4\u4e0d\u5171\u4eab\u5185\u90e8\u7684\u72b6\u6001\u3002\u8fd9\u4e9b\u670d\u52a1\u4f1a\u88ab\u9891\u7e41\u7684\u8c03\u7528\uff0c\u4f8b\u5982\u5185\u5b58\u7ba1\u7406\uff0c\u5728\u57df\u95f4\u5171\u4eab\u5f88\u5bb9\u6613\u53d1\u751f\u51b2\u7a81\uff0c\u4ece\u800c\u5f71\u54cd\u6027\u80fd\u3002\u72ec\u7acb\u5b9e\u4f8b\u5316\u4e3b\u8981\u670d\u52a1\u8fd9\u4e2a\u65b9\u9762\u5f15\u51fa\u4e86\u4e24\u4e2a\u95ee\u9898\uff1a\u4ec0\u4e48\u65f6\u5019\u4ee5\u53ca\u5982\u4f55\u534f\u8c03\u4e24\u4e2a\u76f8\u540c\u670d\u52a1\u7684\u72ec\u7acb\u5b9e\u4f8b\uff1f\u600e\u4e48\u6700\u5c0f\u5316\u5bf9\u73b0\u6709\u7684\u5185\u6838\u670d\u52a1\u4ee3\u7801\u7684\u4fee\u6539\uff1f<\/li>\n<li>\u907f\u514d\u5355\u4e2a\u8fdb\u7a0b\u5728\u591a\u4e2a\u57df\u4e2d\u5e76\u53d1\u6267\u884c\uff1a\u5355\u4e2a\u8fdb\u7a0b\u5728\u591a\u4e2a\u57df\u4e2d\u5e76\u53d1\u6267\u884c\uff0c\u5f88\u5bb9\u6613\u9020\u6210\u51b2\u7a81\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0cK2 \u505a\u6cd5\u662f\u63a8\u8fdf\u5fae\u4efb\u52a1\u7684\u6267\u884c\u3002\u8fd9\u79cd\u505a\u6cd5\u4e4b\u6240\u4ee5\u53ef\u884c\u662f\u56e0\u4e3a\u5f3a\u57df\u5904\u7406\u5668\u5e76\u4e0d\u4f1a\u957f\u65f6\u95f4\u4fdd\u6301\u9971\u548c\u72b6\u6001\uff0c\u800c\u4e14\u63a8\u8fdf\u7684\u4e5f\u662f\u76f8\u540c\u8fdb\u7a0b\u7684\u5fae\u4efb\u52a1\u3002<\/li>\n<\/ul>\n<h3>2.2 \u64cd\u4f5c\u7cfb\u7edf\u67b6\u6784<\/h3>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20240421215208708.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20240421215208708.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"image-20240421215208708\" \/><\/div><\/p>\n<p>\u64cd\u4f5c\u7cfb\u7edf\u7684\u67b6\u6784\u5982\u4e0a\u56fe\u6240\u793a\u3002\u64cd\u4f5c\u7cfb\u7edf\u5fae\u7528\u6237\u5c42\u7684\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b\u4e86\u4e24\u79cd\u7ebf\u7a0b\uff1a\u4e00\u79cd\u5e38\u89c4\u7ebf\u7a0b\uff0c\u53e6\u4e00\u79cd <code>NightWatch<\/code> \u7ebf\u7a0b\u3002\u8fd9\u4f7f\u5f97\u5e94\u7528\u7a0b\u5e8f\u7684\u5f00\u53d1\u8005\u9700\u8981\u81ea\u5df1\u5bf9\u4ed6\u4eec\u7684\u5e94\u7528\u7a0b\u5e8f\u8fdb\u884c\u7c97\u7c92\u5ea6\u7684\u5206\u89e3\uff0c\u5c06\u6027\u80fd\u8981\u6c42\u9ad8\u7684\u90e8\u5206\u5212\u7ed9\u5e38\u89c4\u7ebf\u7a0b\uff0c\u800c\u5c06\u8f7b\u91cf\u7684\u4efb\u52a1\u4ea4\u4e2a <code>NightWatch<\/code> \u7ebf\u7a0b\u3002\u5e38\u89c4\u7ebf\u7a0b\u4f1a\u628a\u6267\u884c\u4ea4\u7ed9\u5f3a\u57df\uff0c\u800c <code>NightWatch<\/code> \u7ebf\u7a0b\u4f1a\u5c06\u6267\u884c\u4ea4\u7ed9\u5f31\u57df\u6765\u6267\u884c\u3002<\/p>\n<p>\u5728 K2 \u64cd\u4f5c\u7cfb\u7edf\u5c42\u9762\uff0c\u4ece\u4e0a\u56fe\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0c\u5b83\u5c06\u5185\u6838\u670d\u52a1\u5206\u6210\u4e86 3 \u79cd\uff0c\u5206\u522b\u662f<strong>\u5f71\u5b50\u670d\u52a1<\/strong>\u3001<strong>\u79c1\u6709\u670d\u52a1<\/strong>\u4ee5\u53ca<strong>\u72ec\u7acb\u670d\u52a1<\/strong>\u3002\u4e09\u79cd\u670d\u52a1\u7684\u533a\u5206\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u5f71\u5b50\u670d\u52a1\uff1a\u7ba1\u7406\u5e73\u53f0\u8d44\u6e90\u3001\u4f4e\u5230\u4e2d\u7b49\u7684\u6027\u80fd\u5f71\u54cd\uff0c\u88ab\u79f0\u4e4b\u4e3a\u5f71\u5b50\u670d\u52a1\u3002<\/li>\n<li>\u79c1\u6709\u670d\u52a1\uff1a\u5bf9\u4e8e\u90a3\u79cd\u5904\u7406\u5668\u5b9a\u5236\u5316\u7684\u4ee5\u53ca\u7ba1\u7406\u7279\u5b9a\u7684\u5e73\u53f0\u8d44\u6e90\u670d\u52a1\uff0c\u6211\u4eec\u5c06\u5176\u89c6\u4e3a\u79c1\u6709\u670d\u52a1\u3002\u5bf9\u4e8e\u6709\u590d\u6742\u7684\u6267\u884c\u8fc7\u7a0b\u5e76\u4e14\u6781\u5c11\u4f7f\u7528\u5168\u5c40\u64cd\u4f5c\u7684\u670d\u52a1\uff0c\u6211\u4eec\u4e5f\u5c06\u5176\u89c6\u4e3a\u79c1\u6709\u670d\u52a1\u3002<\/li>\n<li>\u72ec\u7acb\u670d\u52a1\uff1a\u5177\u6709\u5f88\u9ad8\u7684\u6027\u80fd\u5f71\u54cd\u7684\u670d\u52a1\uff0c\u6211\u4eec\u5c06\u5176\u89c6\u4e3a\u72ec\u7acb\u670d\u52a1\u3002<\/li>\n<\/ul>\n<blockquote>\n<p>[!NOTE]<\/p>\n<p>\u72ec\u7acb\u548c\u79c1\u6709\u5728\u4e2d\u6587\u5c42\u9762\u7406\u89e3\u611f\u89c9\u6709\u70b9\u7c7b\u4f3c\uff0c\u4f46\u662f\u8fd9\u91cc\u7684\u63cf\u8ff0\u662f\u6709\u533a\u522b\u7684\u3002\u72ec\u7acb\u8868\u793a\u6bcf\u4e2a\u57df\u90fd\u6709\u4e00\u4efd\u8fd9\u6837\u7684\u670d\u52a1\uff0c\u8fd9\u4e9b\u76f8\u540c\u670d\u52a1\u4e4b\u95f4\u72ec\u7acb\u3002\u79c1\u6709\u5c31\u662f\u8868\u793a\u8fd9\u4e2a\u670d\u52a1\u662f\u79c1\u6709\u7684\uff0c\u5176\u4ed6\u57df\u6ca1\u6709\u8fd9\u4e2a\u670d\u52a1\u3002<\/p>\n<\/blockquote>\n<p>\u4e3a\u4e86\u6784\u5efa K2\uff0c\u4f5c\u8005\u4f7f\u7528\u4e86\u4e24\u5957\u7f16\u8bd1\uff0c\u5206\u522b\u7f16\u8bd1\u6210 ARM \u548c Tbumb-2 \u67b6\u6784\u3002\u4e3a\u4e86\u6865\u63a5\u5904\u7406\u5668\u4e4b\u524d\u7684\u5f02\u6784\u5dee\u5f02\uff0c\u4f5c\u8005\u4f7f\u7528\u4e86\u81ea\u52a8\u5316\u811a\u672c\u3002\u7f16\u8bd1\u540e\u7684\u4e24\u4e2a\u5185\u6838\uff0c\u5171\u4eab\u7684\u5185\u6838\u5bf9\u8c61\u90fd\u6709\u76f8\u540c\u7684\u52a0\u8f7d\u5730\u5740\u4ee5\u53ca\u5171\u4eab\u51fd\u6570\u7684\u6307\u9488\u3002\u7f16\u8bd1\u65f6\u9759\u6001\u5730\u5c06 <code>blx<\/code> \u91cd\u5199\u6210\u672a\u5b9a\u4e49\u7684\u6307\u4ee4\uff0c\u56e0\u4e3a\u5bf9\u4e8e Cortex-M3\uff0c\u6267\u884c Cortex-A9 \u4f1a\u4f7f\u5904\u7406\u5668\u9677\u5165\u4e0d\u53ef\u6062\u590d\u7684\u72b6\u6001\uff0c\u800c\u672a\u5b9a\u4e49\u7684\u6307\u4ee4\u662f\u53ef\u4ee5\u6062\u590d\u7684\u3002<\/p>\n<h2>3 K2 \u7ec4\u4ef6<\/h2>\n<p>\u5728 K2 \u64cd\u4f5c\u7cfb\u7edf\u4e2d\uff0c\u5b9e\u73b0\u4e86 3 \u4e2a\u4e3b\u8981\u7ec4\u4ef6\uff0c\u5206\u522b\u662f<strong>\u5185\u5b58\u7ba1\u7406<\/strong>\u3001<strong>\u4e2d\u65ad\u7ba1\u7406<\/strong>\u4ee5\u53ca<strong>\u8c03\u5ea6<\/strong>\u3002\u5176\u4e2d\uff0c\u5185\u5b58\u7ba1\u7406\u662f\u6700\u4e3a\u91cd\u8981\u7684\u3002<\/p>\n<h3>3.1 \u5185\u5b58\u7ba1\u7406<\/h3>\n<p>K2 \u4e3a\u6bcf\u4e2a\u5185\u6838\u90fd\u521b\u5efa\u4e86\u7edf\u4e00\u7684\u5185\u5b58\u7a7a\u95f4\uff0c\u8fd9\u4e9b\u7a7a\u95f4\u90fd\u91c7\u7528\u76f4\u63a5\u6620\u5c04\u7684\u65b9\u6cd5\u3002\u4e3a\u4e86\u7ba1\u7406\u591a\u4e2a\u5185\u6838\u7684\u865a\u62df\u5185\u5b58\uff0cK2 \u89c4\u5b9a\u4e86\u4ee5\u4e0b\u7ea6\u675f\uff1a<\/p>\n<ul>\n<li>\u5185\u6838\u4e4b\u95f4\u5171\u4eab\u7684\u5185\u5b58\u5bf9\u8c61\u5728\u4e24\u4e2a\u5185\u6838\u4e2d\u5fc5\u987b\u5177\u6709\u76f8\u540c\u7684\u865a\u62df\u5730\u5740\u3002<\/li>\n<li>\u5bf9\u4e8e\u6bcf\u4e2a\u5185\u6838\uff0c\u7ebf\u6027\u6620\u5c04\u7684\u5047\u8bbe\u9002\u7528\u4e8e\u6574\u4e2a\u76f4\u63a5\u6620\u5c04\u5185\u5b58\u3002<\/li>\n<li>\u6700\u5927\u5316\u8fde\u7eed\u7684\u7269\u7406\u5185\u5b58\u3002<\/li>\n<\/ul>\n<p>K2 \u7684\u5185\u5b58\u5730\u5740\u5206\u5e03\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20240422105030456.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20240422105030456.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"image-20240422105030456\" \/><\/div><\/p>\n<p>\u4ece\u56fe\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0c\u5185\u6838\u76f4\u63a5\u6620\u5c04\u90e8\u5206\uff0c\u524d\u9762\u4e00\u6bb5\u662f\u672c\u5730\u5185\u5b58\u7a7a\u95f4\uff0c\u540e\u9762\u4e00\u6bb5\u662f\u5168\u5c40\u5185\u5b58\u7a7a\u95f4\u3002\u800c\u5728\u672c\u5730\u5185\u5b58\u7a7a\u95f4\u6bb5\uff0c\u524d\u4e00\u90e8\u5206\u662f\u7ed9\u5f71\u5b50\u5185\u6838\u7684\uff0c\u540e\u4e00\u90e8\u5206\u662f\u7ed9\u4e3b\u5185\u6838\u7684\u3002\u539f\u56e0\u662f K2 \u4f1a\u907f\u514d\u5728\u4e3b\u5185\u6838\u4e2d\u6709\u5185\u5b58\u7a7a\u6d1e\u3002<\/p>\n<p>\u5728\u672b\u5c3e\u5904\u8fd8\u6709\u5185\u5b58\u7684\u6682\u65f6\u7684\u6620\u5c04\u3002\u8fd9\u90e8\u5206\u4e3b\u8981\u7528\u4e8e\u4e0b\u8ff0\u51e0\u70b9\uff1a1\uff09\u8bbf\u95ee IO \u8bbe\u5907\uff1b2\uff09\u8bbf\u95ee\u989d\u5916\u7684\u5185\u5b58\u9875\u9762\u3002\u5f53\u4eca\u7684\u79fb\u52a8\u5e73\u53f0 64 \u4f4d\u673a\u9010\u6e10\u5174\u8d77\uff0c\u9700\u8981\u8bbf\u95ee\u7684\u9875\u9762\u8d8a\u6765\u8d8a\u591a\u3002<\/p>\n<h3>3.2 \u6c14\u7403\u9a71\u52a8<\/h3>\n<p>\u5185\u5b58\u5206\u914d\u4ee5\u53ca\u91ca\u653e\u662f\u88ab\u9891\u7e41\u8c03\u7528\u7684\u4e00\u4e2a\u6a21\u5757\uff0c\u4e3a\u4e86\u907f\u514d\u9891\u7e41\u5185\u6838\u4e4b\u95f4\u7684\u901a\u4fe1\uff0c\u91c7\u7528\u4e86 <code>share-most<\/code> \u6a21\u578b\u7684\u72ec\u7acb\u5b9e\u4f8b\u5316\u670d\u52a1\u3002\u4f7f\u7528<strong>\u6c14\u7403\u9a71\u52a8<\/strong>\u6210\u719f\u7684\u5185\u5b58\u7ba1\u7406\u673a\u5236\u6765\u52a8\u6001\u5171\u4eab\u6574\u4e2a\u5185\u5b58\u6c60\u7684\u7a7a\u95f2\u9875\u9762\u4ee5\u53ca\u6700\u5c0f\u5316\u7269\u7406\u5185\u5b58\u788e\u7247\u3002K2\u6539\u8fdb\u4e86\u865a\u62df\u673a\u7684\u6c14\u7403\u9a71\u52a8\u7a0b\u5e8f\u7684\u60f3\u6cd5\uff0c\u5e76\u57fa\u4e8e Linux \u7684\u8fde\u7eed\u5185\u5b58\u5206\u914d\u6846\u67b6\u5b9e\u73b0\uff0c\u7528\u4e8e\u63a7\u5236\u5404\u4e2a\u5185\u6838\u53ef\u7528\u7684\u8fde\u7eed\u7269\u7406\u5185\u5b58\u91cf\u3002\u5185\u5b58\u7ba1\u7406\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20240422111219157.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20240422111219157.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"image-20240422111219157\" \/><\/div><\/p>\n<p>\u6c14\u7403\u9a71\u52a8\u5176\u5b9e\u662f\u4e00\u4e2a\u4f2a\u8bbe\u5907\u9a71\u52a8\uff0c\u4e3b\u8981\u4efb\u52a1\u662f\u5360\u7528\u8fde\u7eed\u7684\u7269\u7406\u5185\u5b58\uff0c\u4ee5\u4f7f\u5185\u5b58\u4e0d\u53d7\u672c\u5730\u9875\u9762\u5206\u914d\u5668\u7684\u5f71\u54cd\u3002\u6c14\u7403\u9a71\u52a8\u6709\u4e24\u4e2a\u539f\u8bed\u64cd\u4f5c\uff0c\u5145\u6c14\u548c\u653e\u6c14\u3002<\/p>\n<ul>\n<li>\u5145\u6c14\uff1a\u6c14\u7403\u9a71\u52a8\u4ece\u5185\u6838\u4e2d\u5206\u914d\u4e00\u4e2a\u9875\u9762\u5757\uff0c\u5c06\u9875\u9762\u4ece\u9875\u9762\u5757\u4e2d\u9a71\u9010\uff0c\u5e76\u5c06\u6240\u6709\u6743\u8f6c\u79fb\u7ed9 K2\u3002<\/li>\n<li>\u653e\u6c14\uff1a\u4ece\u672c\u5730\u9875\u9762\u5206\u914d\u5668\u4e2d\u91ca\u653e\u4e00\u4e2a\u9875\u9762\u5757\uff0c\u5e76\u5c06\u6240\u6709\u6743\u4ece K2 \u8f6c\u79fb\u81f3\u672c\u5730\u5185\u6838\u3002<\/li>\n<\/ul>\n<p>K2 \u63d0\u4f9b\u4e86\u5143\u7ea7\u522b\u7ba1\u7406\u5668\u6765\u51b3\u5b9a\u4ec0\u4e48\u65f6\u5019\u62ff\u53d6\u548c\u63d0\u4f9b\u9875\u9762\u5757\u3002\u7ba1\u7406\u5668\u5728\u6bcf\u4e2a\u5185\u6838\u4e2d\u90fd\u653e\u7f6e\u6709\u63a2\u9488\uff0c\u901a\u8fc7\u786c\u4ef6\u4fe1\u606f\u6765\u611f\u77e5\u5185\u5b58\u538b\u529b\u3002\u5f53\u5185\u5b58\u538b\u529b\u589e\u5927\u7684\u65f6\u5019\uff0c\u7ba1\u7406\u5668\u5c31\u4f1a\u91ca\u653e\u9875\u9762\u5757\u6765\u7f13\u89e3\u5185\u5b58\u538b\u529b\uff1b\u5f53\u6574\u4e2a\u7cfb\u7edf\u5904\u4e8e\u6d88\u6781\u5730\u91ca\u653e\u9875\u9762\u5757\u7684\u65f6\u5019\uff0c\u7ba1\u7406\u5668\u5c31\u4f1a\u8fdb\u884c\u5145\u6c14\u64cd\u4f5c\uff0c\u4e3b\u52a8\u6765\u56de\u6536\u9875\u9762\u5757\u3002<\/p>\n<p>K2 \u901a\u8fc7\u4ee5\u4e0b 3 \u70b9\u6765\u4f18\u5316\u5185\u5b58\u7ba1\u7406\u6a21\u5757\uff1a1\uff09\u51cf\u5c11\u57df\u95f4\u901a\u4fe1\uff1b2\uff09\u6700\u5927\u5316\u8fde\u7eed\u7684\u5185\u5b58\u7a7a\u95f4\uff1b3\uff09\u589e\u52a0\u6210\u529f\u56de\u6536\u9875\u9762\u7684\u673a\u4f1a\u3002<\/p>\n<h3>3.3 \u8f6f\u4ef6\u4e00\u81f4\u6027<\/h3>\n<p>K2 \u901a\u8fc7\u5206\u5e03\u5f0f\u5171\u4eab\u5185\u5b58\uff08DSM\uff09\u4e3a\u5f71\u5b50\u670d\u52a1\u63d0\u4f9b\u900f\u660e\u7684\u5e8f\u5217\u4e00\u81f4\u6027\u3002\u4e3a\u6b64\uff0cK2 \u5236\u5b9a\u4e00\u5957\u7b80\u5355\u7684\u6807\u51c6\u7684\u4e24\u72b6\u6001\u534f\u8bae\uff0c\u5bf9\u4e8e\u6bcf\u4e00\u4e2a\u5171\u4eab\u9875\u9762\uff0c\u90fd\u6709\u4e24\u4e2a\u72b6\u6001\u4e4b\u4e00\uff0c<code>Invalid<\/code> \u6216\u8005\u662f <code>Valid<\/code>\u3002\u5f53\u9875\u9762\u4e3a\u6709\u6548\u7684\u65f6\u5019\uff0c\u5185\u6838\u53ef\u4ee5\u6267\u884c\u8bfb\u5199\u64cd\u4f5c\uff1b\u800c\u5f53\u662f\u65e0\u6548\u72b6\u6001\u7684\u65f6\u5019\uff0c\u5185\u6838\u5c31\u5fc5\u987b\u53d1\u9001 <code>GetExclusive<\/code> \u7684\u4fe1\u606f\u7ed9\u5176\u4ed6\u5185\u6838\uff0c\u6765\u83b7\u53d6\u9875\u9762\u7684\u6240\u6709\u6743\u3002\u5176\u4ed6\u5185\u6838\u6536\u5230 <code>GetExclusive<\/code> \u7684\u6d88\u606f\u4e4b\u540e\uff0c\u5c31\u4f1a\u4f7f\u5176\u672c\u5730\u7684\u7f13\u5b58\u7684\u6570\u636e\u90fd\u7f6e\u4e3a\u5931\u6548\u72b6\u6001\uff0c\u7136\u540e\u56de\u590d\u4e00\u4e2a <code>PutExclusive<\/code> \u7684\u6d88\u606f\u3002\u4e4b\u540e\uff0c\u524d\u8005\u5c31\u53ef\u4ee5\u8bbf\u95ee\u5185\u5b58\u4e86\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u7684\u6d41\u7a0b\u56fe\u5982\u4e0b\uff1a<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/k2%20dsm.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/k2%20dsm.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"k2 dsm\" \/><\/div><\/p>\n<p>K2 DSM\u68c0\u6d4b\u5bf9\u5171\u4eab\u5185\u5b58\u7684\u8bbf\u95ee\u5982\u4e0b\uff1a\u5f53\u9875\u9762\u4ece\u6709\u6548\u72b6\u6001\u8f6c\u53d8\u4e3a\u65e0\u6548\u72b6\u6001\u65f6\uff0cDSM\u4f1a\u5c06\u76f8\u5e94\u7684\u9875\u9762\u8868\u6761\u76ee\u4fee\u6539\u4e3a\u65e0\u6548\uff0c\u5e76\u5904\u7406\u968f\u540e\u5bf9\u9875\u9762\u7684\u8bbf\u95ee\u89e6\u53d1\u7684\u9875\u9762\u9519\u8bef\u3002\u9519\u8bef\u5904\u7406\u5bf9\u4e8e\u8fdb\u884c\u5185\u5b58\u8bbf\u95ee\u7684\u64cd\u4f5c\u7cfb\u7edf\u4ee3\u7801\u662f\u900f\u660e\u7684\u3002<\/p>\n<p>\u4e3a\u4e86\u4fdd\u8bc1\u6027\u80fd\uff0c\u4f5c\u8005\u76f4\u63a5\u4f7f\u7528\u4e86 OMAP4 \u4e0a\u7684\u786c\u4ef6\u90ae\u7bb1\u5b8c\u6210\u4e00\u81f4\u6027\u901a\u4fe1\u3002\u6bcf\u6761\u4fe1\u606f\u90fd\u662f 32 \u4e2a\u6bd4\u7279\uff0c\u6784\u6210\u65b9\u5f0f\u5982\u4e0b\u56fe\u6240\u793a\u3002\u7531\u4e8e\u6d88\u606f\u5177\u6709\u5e8f\u5217\u53f7\uff0c<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20240422143813147.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20240422143813147.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"image-20240422143813147\" \/><\/div><\/p>\n<p>\u4e3a\u4e86\u907f\u514d\u4e00\u81f4\u6027\u4ea4\u6d41\u51fa\u73b0\u6b7b\u9501\uff0c\u901a\u4fe1\u5fc5\u987b\u548c\u8bf7\u6c42\u8005\u540c\u6b65\uff1a\u8fd9\u662f\u56e0\u4e3a\u65e0\u6cd5\u4f11\u7720\u7684\u4e2d\u65ad\u5904\u7406\u7a0b\u5e8f\u53ef\u4ee5\u8bbf\u95ee\u5171\u4eab\u72b6\u6001\u5e76\u4ece\u800c\u542f\u52a8\u901a\u4fe1\u3002\u56e0\u6b64\uff0c\u5f53\u8bf7\u6c42\u8005\u5185\u6838\u53d1\u9001 <code>GetExclusive<\/code> \u6d88\u606f\u65f6\uff0c\u5b83\u4f1a\u65cb\u8f6c\u7b49\u5f85\uff0c\u76f4\u5230\u76ee\u6807\u5185\u6838\u53d1\u9001\u56de <code>PutExclusive<\/code> \u6d88\u606f\u3002\u51fa\u4e8e\u540c\u6837\u7684\u539f\u56e0\uff0c\u5904\u7406 <code>GetExclusive<\/code> \u4e5f\u5fc5\u987b\u907f\u514d\u4f11\u7720\uff0c\u4f8b\u5982\uff0c\u5b83\u5fc5\u987b\u4f7f\u7528\u539f\u5b50\u5185\u5b58\u5206\u914d\u3002\u66f4\u91cd\u8981\u7684\u662f\uff0c\u5904\u7406 <code>GetExclusive<\/code> \u5fc5\u987b\u907f\u514d\u8bbf\u95ee\u5171\u4eab\u72b6\u6001\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5f15\u53d1\u65b0\u7684\u9875\u9762\u9519\u8bef\uff0c\u4ece\u800c\u5bfc\u81f4\u5185\u6838\u4e4b\u95f4\u7684\u65e0\u9650\u8bf7\u6c42\u5faa\u73af\u3002<\/p>\n<p>\u4e3a\u4e86\u4f18\u5316\u5185\u5b58\u5360\u7528\uff0cK2 \u5141\u8bb8\u975e\u5171\u4eab\u7684\u533a\u57df\u53ef\u4ee5\u4ee5\u66f4\u5927\u7684\u7c92\u5ea6\u8fdb\u884c\u6620\u5c04\uff081MB \u6216\u8005\u662f 16 MB\uff09\uff0c\u8fd9\u4e24\u4e2a\u5927\u5c0f\u4e5f\u662f ARM \u67b6\u6784\u6240\u652f\u6301\u7684\u3002<\/p>\n<h3>3.4 \u4e2d\u65ad\u7ba1\u7406<\/h3>\n<p>K2 \u8981\u6c42\u4e2d\u65ad\u5904\u7406\u53ea\u80fd\u88ab\u4e00\u4e2a\u5185\u6838\u6240\u5904\u7406\uff0c\u4e3a\u4e86\u63d0\u9ad8\u6027\u80fd\u548c\u80fd\u6548\uff0cK2 \u4ee5\u4ee5\u4e0b\u7684\u65b9\u5f0f\u5728\u5185\u6838\u4e4b\u95f4\u534f\u8c03\u4e2d\u65ad\u5904\u7406\uff1a<\/p>\n<ul>\n<li>\u5982\u679c\u5f3a\u57df\u5904\u4e8e\u975e\u6d3b\u8dc3\u7684\u72b6\u6001\uff0c\u5219\u4e0d\u5c06\u5176\u5524\u9192\uff0c\u4ea4\u7ed9\u5f31\u57df\u5904\u7406\u4e2d\u65ad\u3002<\/li>\n<li>\u5982\u679c\u5f3a\u57df\u662f\u6d3b\u8dc3\u7684\u72b6\u6001\uff0c\u5219\u5c06\u4e2d\u65ad\u4ea4\u7ed9\u5f3a\u57df\u5904\u7406\u3002<\/li>\n<\/ul>\n<h3>3.5 NightWatch \u7ebf\u7a0b<\/h3>\n<p>NightWatch \u7ebf\u7a0b\u56fa\u5b9a\u5728\u5f31\u57df\u4e0a;\u521b\u5efa\u540e\uff0cNightWatch \u7ebf\u7a0b\u5c06\u8fdb\u5165\u5f71\u5b50\u5185\u6838\u8fd0\u884c\u961f\u5217\u8fdb\u884c\u6267\u884c\u3002\u6267\u884c\u9075\u5faa\u4ee5\u4e0b\u539f\u5219\uff1a\u5f53\u4e14\u4ec5\u5f53\u540c\u4e00\u4e2a\u8fdb\u7a0b\u7684\u6240\u6709\u5e38\u89c4\u7ebf\u7a0b\u6682\u505c\u65f6\uff0c\u624d\u4f1a\u8c03\u5ea6 NightWatch \u7ebf\u7a0b\u3002\u90a3\u4e48\uff0c\u5f53 NightWatch \u5728\u6267\u884c\u7684\u65f6\u5019\uff0c\u6765\u4e86\u4e00\u4e2a\u5e38\u89c4\u7ebf\u7a0b\u5462\uff1f\u8fd9\u4e2a\u65f6\u5019\u5c31\u9700\u8981\u62a2\u5360\uff0c\u62a2\u5360\u7684\u6d41\u7a0b\u56fe\u5982\u4e0b\uff1a<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/k2%20sched.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/k2%20sched.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"k2 sched\" \/><\/div><\/p>\n<p>\u5bf9\u4e8e\u6062\u590d NightWatch \u7684\u6267\u884c\uff0c\u4e3b\u5185\u6838\u4f1a\u53d1\u9001 <code>ResumeNW<\/code> \u4fe1\u53f7\uff0c\u6536\u5230\u6d88\u606f\u540e\uff0c\u5f71\u5b50\u5185\u6838\u4f1a\u4ece\u7ed9\u5b9a\u8fdb\u7a0b\u7684\u6240\u6709 NightWatch \u7ebf\u7a0b\u4e2d\u5220\u9664\u6807\u5fd7\uff0c\u5e76\u5728\u672a\u6765\u7684\u8c03\u5ea6\u4e2d\u8003\u8651\u5b83\u4eec\u3002<\/p>\n<h2>\u53c2\u8003\u6587\u732e<\/h2>\n<p><a href=\"https:\/\/dl.acm.org\/doi\/10.1145\/2699676\">K2: A Mobile Operating System for Heterogeneous Coherence Domains<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>K2: A Mobile Operating System for Heterogeneous Coherence Domains 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