{"id":7830,"date":"2022-10-28T21:12:06","date_gmt":"2022-10-28T13:12:06","guid":{"rendered":"http:\/\/123.57.164.21\/?p=7830"},"modified":"2022-10-28T21:12:06","modified_gmt":"2022-10-28T13:12:06","slug":"26-superscalar%e5%92%8cvliw%ef%bc%9a%e5%a6%82%e4%bd%95%e8%ae%a9cpu%e7%9a%84%e5%90%9e%e5%90%90%e7%8e%87%e8%b6%85%e8%bf%871%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=7830","title":{"rendered":"26 | Superscalar\u548cVLIW\uff1a\u5982\u4f55\u8ba9CPU\u7684\u541e\u5410\u7387\u8d85\u8fc71\uff1f"},"content":{"rendered":"\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-39-1024x529.png\" alt=\"\" class=\"wp-image-7831\" width=\"544\" height=\"280\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-39-1024x529.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-39-300x155.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-39-768x397.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-39-830x429.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-39-230x119.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-39-350x181.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-39-480x248.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-39.png 1246w\" sizes=\"(max-width: 544px) 100vw, 544px\" \/><\/figure><\/div>\n\n\n\n<p>\u5230\u4eca\u5929\u4e3a\u6b62\uff0c\u4e13\u680f\u5df2\u7ecf\u8fc7\u534a\u4e86\u3002\u8fc7\u53bb\u7684 20 \u591a\u8bb2\u91cc\uff0c\u6211\u7ed9\u4f60\u8bb2\u7684\u5185\u5bb9\uff0c\u5f88\u591a\u90fd\u662f\u56f4\u7ed5\u7740\u600e\u4e48\u63d0\u5347 CPU \u7684\u6027\u80fd\u8fd9\u4e2a\u95ee\u9898\u5c55\u5f00\u7684\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u5148\u56de\u987e\u4e00\u4e0b\u7b2c 4 \u8bb2\uff0c\u4e0d\u77e5\u9053\u4f60\u662f\u5426\u8fd8\u8bb0\u5f97\u8fd9\u4e2a\u516c\u5f0f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\u7a0b\u5e8f\u7684 CPU \u6267\u884c\u65f6\u95f4 = \u6307\u4ee4\u6570 \u00d7 CPI \u00d7 Clock Cycle Time<\/pre>\n\n\n\n<p>\u8fd9\u4e2a\u516c\u5f0f\u91cc\uff0c\u6709\u4e00\u4e2a\u53eb CPI \u7684\u6307\u6807\u3002\u6211\u4eec\u77e5\u9053\uff0cCPI \u7684\u5012\u6570\uff0c\u53c8\u53eb\u4f5c IPC\uff08Instruction Per Clock\uff09\uff0c\u4e5f\u5c31\u662f\u4e00\u4e2a\u65f6\u949f\u5468\u671f\u91cc\u9762\u80fd\u591f\u6267\u884c\u7684\u6307\u4ee4\u6570\uff0c\u4ee3\u8868\u4e86 CPU \u7684\u541e\u5410\u7387\u3002\u90a3\u4e48\uff0c\u8fd9\u4e2a\u6307\u6807\uff0c\u653e\u5728\u6211\u4eec\u524d\u9762\u51e0\u8282\u53cd\u590d\u4f18\u5316\u6d41\u6c34\u7ebf\u67b6\u6784\u7684 CPU \u91cc\uff0c\u80fd\u8fbe\u5230\u591a\u5c11\u5462\uff1f<\/p>\n\n\n\n<p>\u7b54\u6848\u662f\uff0c\u6700\u4f73\u60c5\u51b5\u4e0b\uff0cIPC \u4e5f\u53ea\u80fd\u5230 1\u3002\u56e0\u4e3a\u65e0\u8bba\u505a\u4e86\u54ea\u4e9b\u6d41\u6c34\u7ebf\u5c42\u9762\u7684\u4f18\u5316\uff0c\u5373\u4f7f\u505a\u5230\u4e86\u6307\u4ee4\u6267\u884c\u5c42\u9762\u7684\u4e71\u5e8f\u6267\u884c\uff0cCPU \u4ecd\u7136\u53ea\u80fd\u5728\u4e00\u4e2a\u65f6\u949f\u5468\u671f\u91cc\u9762\uff0c\u53d6\u4e00\u6761\u6307\u4ee4\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-40-1024x488.png\" alt=\"\" class=\"wp-image-7832\" width=\"565\" height=\"269\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-40-1024x488.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-40-300x143.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-40-768x366.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-40-830x396.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-40-230x110.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-40-350x167.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-40-480x229.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-40.png 1120w\" sizes=\"(max-width: 565px) 100vw, 565px\" \/><\/figure><\/div>\n\n\n\n<p>\u8fd9\u8bf4\u660e\uff0c\u65e0\u8bba\u6307\u4ee4\u540e\u7eed\u80fd\u4f18\u5316\u5f97\u591a\u597d\uff0c\u4e00\u4e2a\u65f6\u949f\u5468\u671f\u4e5f\u53ea\u80fd\u6267\u884c\u5b8c\u8fd9\u6837\u4e00\u6761\u6307\u4ee4\uff0cCPI \u53ea\u80fd\u662f 1\u3002\u4f46\u662f\uff0c\u6211\u4eec\u73b0\u5728\u7528\u7684 Intel CPU \u6216\u8005 ARM \u7684 CPU\uff0c\u4e00\u822c\u7684 CPI \u90fd\u80fd\u505a\u5230 2 \u4ee5\u4e0a\uff0c\u8fd9\u662f\u600e\u4e48\u505a\u5230\u7684\u5462\uff1f<\/p>\n\n\n\n<p>\u4eca\u5929\uff0c\u6211\u4eec\u5c31\u4e00\u8d77\u6765\u770b\u770b\uff0c\u73b0\u4ee3 CPU \u90fd\u4f7f\u7528\u4e86\u4ec0\u4e48\u201c\u9ed1\u79d1\u6280\u201d\u3002<\/p>\n\n\n\n<p><strong>\u591a\u53d1\u5c04\u4e0e\u8d85\u6807\u91cf\uff1a\u540c\u4e00\u65f6\u95f4\u6267\u884c\u7684\u4e24\u6761\u6307\u4ee4<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u4e4b\u524d\u8bb2 CPU \u7684\u786c\u4ef6\u7ec4\u6210\u7684\u65f6\u5019\uff0c\u6211\u4eec\u628a\u6240\u6709\u7b97\u672f\u548c\u903b\u8f91\u8fd0\u7b97\u90fd\u62bd\u8c61\u51fa\u6765\uff0c\u53d8\u6210\u4e86\u4e00\u4e2a ALU \u8fd9\u6837\u7684\u201c\u9ed1\u76d2\u5b50\u201d\u3002\u4f60\u5e94\u8be5\u8fd8\u8bb0\u5f97\u7b2c 13 \u8bb2\u5230\u7b2c 16 \u8bb2\uff0c\u5173\u4e8e\u52a0\u6cd5\u5668\u3001\u4e58\u6cd5\u5668\u3001\u4e43\u81f3\u6d6e\u70b9\u6570\u8ba1\u7b97\u7684\u90e8\u5206\uff0c\u5176\u5b9e\u6574\u6570\u7684\u8ba1\u7b97\u548c\u6d6e\u70b9\u6570\u7684\u8ba1\u7b97\u8fc7\u7a0b\u5dee\u5f02\u8fd8\u662f\u4e0d\u5c0f\u7684\u3002\u5b9e\u9645\u4e0a\uff0c\u6574\u6570\u548c\u6d6e\u70b9\u6570\u8ba1\u7b97\u7684\u7535\u8def\uff0c\u5728 CPU \u5c42\u9762\u4e5f\u662f\u5206\u5f00\u7684\u3002<\/p>\n\n\n\n<p>\u4e00\u76f4\u5230 80386\uff0c\u6211\u4eec\u7684 CPU \u90fd\u662f\u6ca1\u6709\u4e13\u95e8\u7684\u6d6e\u70b9\u6570\u8ba1\u7b97\u7684\u7535\u8def\u7684\u3002\u5f53\u65f6\u7684\u6d6e\u70b9\u6570\u8ba1\u7b97\uff0c\u90fd\u662f\u7528\u8f6f\u4ef6\u8fdb\u884c\u6a21\u62df\u7684\u3002\u6240\u4ee5\uff0c\u5728 80386 \u65f6\u4ee3\uff0cIntel \u7ed9 386 \u914d\u4e86\u5355\u72ec\u7684 387 \u82af\u7247\uff0c\u4e13\u95e8\u7528\u6765\u505a\u6d6e\u70b9\u6570\u8fd0\u7b97\u3002\u90a3\u4e2a\u65f6\u5019\uff0c\u4f60\u4e70 386 \u82af\u7247\u7684\u8bdd\uff0c\u4f1a\u6709 386sx \u548c 386dx \u8fd9\u4e24\u79cd\u82af\u7247\u53ef\u4ee5\u9009\u62e9\u3002386dx \u5c31\u662f\u5e26\u4e86 387 \u6d6e\u70b9\u6570\u8ba1\u7b97\u82af\u7247\u7684\uff0c\u800c sx \u5c31\u662f\u4e0d\u5e26\u6d6e\u70b9\u6570\u8ba1\u7b97\u82af\u7247\u7684\u3002<\/p>\n\n\n\n<p>\u5176\u5b9e\uff0c\u6211\u4eec\u73b0\u5728\u7528\u7684 Intel CPU \u82af\u7247\u4e5f\u662f\u4e00\u6837\u7684\u3002\u867d\u7136\u6d6e\u70b9\u6570\u8ba1\u7b97\u5df2\u7ecf\u53d8\u6210 CPU \u91cc\u7684\u4e00\u90e8\u5206\uff0c\u4f46\u5e76\u4e0d\u662f\u6240\u6709\u8ba1\u7b97\u529f\u80fd\u90fd\u5728\u4e00\u4e2a ALU \u91cc\u9762\uff0c\u771f\u5b9e\u7684\u60c5\u51b5\u662f\uff0c\u6211\u4eec\u4f1a\u6709\u591a\u4e2a ALU\u3002\u8fd9\u4e5f\u662f\u4e3a\u4ec0\u4e48\uff0c\u5728\u7b2c 24 \u8bb2\u8bb2\u4e71\u5e8f\u6267\u884c\u7684\u65f6\u5019\uff0c\u4f60\u4f1a\u770b\u5230\uff0c\u5176\u5b9e\u6307\u4ee4\u7684\u6267\u884c\u9636\u6bb5\uff0c\u662f\u7531\u5f88\u591a\u4e2a\u529f\u80fd\u5355\u5143\uff08FU\uff09\u5e76\u884c\uff08Parallel\uff09\u8fdb\u884c\u7684\u3002<\/p>\n\n\n\n<p>\u4e0d\u8fc7\uff0c\u5728\u6307\u4ee4\u4e71\u5e8f\u6267\u884c\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7684\u53d6\u6307\u4ee4\uff08IF\uff09\u548c\u6307\u4ee4\u8bd1\u7801\uff08ID\uff09\u90e8\u5206\u5e76\u4e0d\u662f\u5e76\u884c\u8fdb\u884c\u7684\u3002<\/p>\n\n\n\n<p>\u65e2\u7136\u6307\u4ee4\u7684\u6267\u884c\u5c42\u9762\u53ef\u4ee5\u5e76\u884c\u8fdb\u884c\uff0c\u4e3a\u4ec0\u4e48\u53d6\u6307\u4ee4\u548c\u6307\u4ee4\u8bd1\u7801\u4e0d\u884c\u5462\uff1f\u5982\u679c\u60f3\u8981\u5b9e\u73b0\u5e76\u884c\uff0c\u8be5\u600e\u4e48\u529e\u5462\uff1f<\/p>\n\n\n\n<p>\u5176\u5b9e\u53ea\u8981\u6211\u4eec\u628a\u53d6\u6307\u4ee4\u548c\u6307\u4ee4\u8bd1\u7801\uff0c\u4e5f\u4e00\u6837\u901a\u8fc7\u589e\u52a0\u786c\u4ef6\u7684\u65b9\u5f0f\uff0c\u5e76\u884c\u8fdb\u884c\u5c31\u597d\u4e86\u3002\u6211\u4eec\u53ef\u4ee5\u4e00\u6b21\u6027\u4ece\u5185\u5b58\u91cc\u9762\u53d6\u51fa\u591a\u6761\u6307\u4ee4\uff0c\u7136\u540e\u5206\u53d1\u7ed9\u591a\u4e2a\u5e76\u884c\u7684\u6307\u4ee4\u8bd1\u7801\u5668\uff0c\u8fdb\u884c\u8bd1\u7801\uff0c\u7136\u540e\u5bf9\u5e94\u4ea4\u7ed9\u4e0d\u540c\u7684\u529f\u80fd\u5355\u5143\u53bb\u5904\u7406\u3002\u8fd9\u6837\uff0c\u6211\u4eec\u5728\u4e00\u4e2a\u65f6\u949f\u5468\u671f\u91cc\uff0c\u80fd\u591f\u5b8c\u6210\u7684\u6307\u4ee4\u5c31\u4e0d\u53ea\u4e00\u6761\u4e86\u3002IPC \u4e5f\u5c31\u80fd\u505a\u5230\u5927\u4e8e 1 \u4e86\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-41-1024x617.png\" alt=\"\" class=\"wp-image-7833\" width=\"522\" height=\"314\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-41-1024x617.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-41-300x181.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-41-768x463.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-41-830x500.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-41-230x139.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-41-350x211.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-41-480x289.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-41.png 1122w\" sizes=\"(max-width: 522px) 100vw, 522px\" \/><\/figure><\/div>\n\n\n\n<p>\u8fd9\u79cd CPU \u8bbe\u8ba1\uff0c\u6211\u4eec\u53eb\u4f5c\u591a\u53d1\u5c04\uff08Mulitple Issue\uff09\u548c\u8d85\u6807\u91cf\uff08Superscalar\uff09\u3002<\/p>\n\n\n\n<p>\u4ec0\u4e48\u53eb\u591a\u53d1\u5c04\u5462\uff1f\u8fd9\u4e2a\u8bcd\u542c\u8d77\u6765\u5f88\u62bd\u8c61\uff0c\u5176\u5b9e\u5b83\u610f\u601d\u5c31\u662f\u8bf4\uff0c\u6211\u4eec\u540c\u4e00\u4e2a\u65f6\u95f4\uff0c\u53ef\u80fd\u4f1a\u540c\u65f6\u628a\u591a\u6761\u6307\u4ee4\u53d1\u5c04\uff08Issue\uff09\u5230\u4e0d\u540c\u7684\u8bd1\u7801\u5668\u6216\u8005\u540e\u7eed\u5904\u7406\u7684\u6d41\u6c34\u7ebf\u4e2d\u53bb\u3002<\/p>\n\n\n\n<p>\u5728\u8d85\u6807\u91cf\u7684 CPU \u91cc\u9762\uff0c\u6709\u5f88\u591a\u6761\u5e76\u884c\u7684\u6d41\u6c34\u7ebf\uff0c\u800c\u4e0d\u662f\u53ea\u6709\u4e00\u6761\u6d41\u6c34\u7ebf\u3002\u201c\u8d85\u6807\u91cf\u201c\u8fd9\u4e2a\u8bcd\u662f\u8bf4\uff0c\u672c\u6765\u6211\u4eec\u5728\u4e00\u4e2a\u65f6\u949f\u5468\u671f\u91cc\u9762\uff0c\u53ea\u80fd\u6267\u884c\u4e00\u4e2a\u6807\u91cf\uff08Scalar\uff09\u7684\u8fd0\u7b97\u3002\u5728\u591a\u53d1\u5c04\u7684\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u5c31\u80fd\u591f\u8d85\u8d8a\u8fd9\u4e2a\u9650\u5236\uff0c\u540c\u65f6\u8fdb\u884c\u591a\u6b21\u8ba1\u7b97\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-42-1024x775.png\" alt=\"\" class=\"wp-image-7834\" width=\"460\" height=\"347\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-42-1024x775.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-42-300x227.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-42-768x581.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-42-830x628.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-42-230x174.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-42-350x265.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-42-480x363.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-42.png 1110w\" sizes=\"(max-width: 460px) 100vw, 460px\" \/><\/figure><\/div>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u770b\u6211\u753b\u7684\u8fd9\u4e2a\u8d85\u6807\u91cf\u8bbe\u8ba1\u7684\u6d41\u6c34\u7ebf\u793a\u610f\u56fe\u3002\u4ed4\u7ec6\u770b\uff0c\u4f60\u5e94\u8be5\u80fd\u770b\u5230\u4e00\u4e2a\u6709\u610f\u601d\u7684\u73b0\u8c61\uff0c\u6bcf\u4e00\u4e2a\u529f\u80fd\u5355\u5143\u7684\u6d41\u6c34\u7ebf\u7684\u957f\u5ea6\u662f\u4e0d\u540c\u7684\u3002\u4e8b\u5b9e\u4e0a\uff0c\u4e0d\u540c\u7684\u529f\u80fd\u5355\u5143\u7684\u6d41\u6c34\u7ebf\u957f\u5ea6\u672c\u6765\u5c31\u4e0d\u4e00\u6837\u3002\u6211\u4eec\u5e73\u65f6\u6240\u8bf4\u7684 14 \u7ea7\u6d41\u6c34\u7ebf\uff0c\u6307\u7684\u901a\u5e38\u662f\u8fdb\u884c\u6574\u6570\u8ba1\u7b97\u6307\u4ee4\u7684\u6d41\u6c34\u7ebf\u957f\u5ea6\u3002\u5982\u679c\u662f\u6d6e\u70b9\u6570\u8fd0\u7b97\uff0c\u5b9e\u9645\u7684\u6d41\u6c34\u7ebf\u957f\u5ea6\u5219\u4f1a\u66f4\u957f\u4e00\u4e9b\u3002<\/p>\n\n\n\n<p><strong>Intel \u7684\u5931\u8d25\u4e4b\u4f5c\uff1a\u5b89\u817e\u7684\u8d85\u957f\u6307\u4ee4\u5b57\u8bbe\u8ba1<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u65e0\u8bba\u662f\u4e4b\u524d\u51e0\u8bb2\u91cc\u8bb2\u7684\u4e71\u5e8f\u6267\u884c\uff0c\u8fd8\u662f\u73b0\u5728\u66f4\u8fdb\u4e00\u6b65\u7684\u8d85\u6807\u91cf\u6280\u672f\uff0c\u5728\u5b9e\u9645\u7684\u786c\u4ef6\u5c42\u9762\uff0c\u5176\u5b9e\u5b9e\u65bd\u8d77\u6765\u90fd\u633a\u9ebb\u70e6\u7684\u3002\u8fd9\u662f\u56e0\u4e3a\uff0c\u5728\u4e71\u5e8f\u6267\u884c\u548c\u8d85\u6807\u91cf\u7684\u4f53\u7cfb\u91cc\u9762\uff0c\u6211\u4eec\u7684 CPU \u8981\u89e3\u51b3\u4f9d\u8d56\u51b2\u7a81\u7684\u95ee\u9898\u3002\u8fd9\u4e5f\u5c31\u662f\u524d\u9762\u51e0\u8bb2\u6211\u4eec\u8bb2\u7684\u5192\u9669\u95ee\u9898\u3002<\/p>\n\n\n\n<p>CPU \u9700\u8981\u5728\u6307\u4ee4\u6267\u884c\u4e4b\u524d\uff0c\u53bb\u5224\u65ad\u6307\u4ee4\u4e4b\u95f4\u662f\u5426\u6709\u4f9d\u8d56\u5173\u7cfb\u3002\u5982\u679c\u6709\u5bf9\u5e94\u7684\u4f9d\u8d56\u5173\u7cfb\uff0c\u6307\u4ee4\u5c31\u4e0d\u80fd\u5206\u53d1\u5230\u6267\u884c\u9636\u6bb5\u3002\u56e0\u4e3a\u8fd9\u6837\uff0c\u4e0a\u9762\u6211\u4eec\u6240\u8bf4\u7684\u8d85\u6807\u91cf CPU \u7684\u591a\u53d1\u5c04\u529f\u80fd\uff0c\u53c8\u88ab\u79f0\u4e3a\u52a8\u6001\u591a\u53d1\u5c04\u5904\u7406\u5668\u3002\u8fd9\u4e9b\u5bf9\u4e8e\u4f9d\u8d56\u5173\u7cfb\u7684\u68c0\u6d4b\uff0c\u90fd\u4f1a\u4f7f\u5f97\u6211\u4eec\u7684 CPU \u7535\u8def\u53d8\u5f97\u66f4\u52a0\u590d\u6742\u3002<\/p>\n\n\n\n<p>\u4e8e\u662f\uff0c\u8ba1\u7b97\u673a\u79d1\u5b66\u5bb6\u548c\u5de5\u7a0b\u5e08\u4eec\u5c31\u53c8\u6709\u4e86\u4e00\u4e2a\u5927\u80c6\u7684\u60f3\u6cd5\u3002\u6211\u4eec\u80fd\u4e0d\u80fd\u4e0d\u628a\u5206\u6790\u548c\u89e3\u51b3\u4f9d\u8d56\u5173\u7cfb\u7684\u4e8b\u60c5\uff0c\u653e\u5728\u786c\u4ef6\u91cc\u9762\uff0c\u800c\u662f\u653e\u5230\u8f6f\u4ef6\u91cc\u9762\u6765\u5e72\u5462\uff1f<\/p>\n\n\n\n<p>\u5982\u679c\u4f60\u8fd8\u8bb0\u5f97\u7684\u8bdd\uff0c\u6211\u5728\u7b2c 4 \u8bb2\u4e5f\u8bb2\u8fc7\uff0c\u8981\u60f3\u4f18\u5316 CPU \u7684\u6267\u884c\u65f6\u95f4\uff0c\u5173\u952e\u5c31\u662f\u62c6\u89e3\u8fd9\u4e2a\u516c\u5f0f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\u7a0b\u5e8f\u7684 CPU \u6267\u884c\u65f6\u95f4 = \u6307\u4ee4\u6570 \u00d7 CPI \u00d7 Clock Cycle Time<\/pre>\n\n\n\n<p>\u5f53\u65f6\u6211\u4eec\u8bf4\u8fc7\uff0c\u8fd9\u4e2a\u516c\u5f0f\u91cc\u9762\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u6539\u8fdb\u7f16\u8bd1\u5668\u6765\u4f18\u5316\u6307\u4ee4\u6570\u8fd9\u4e2a\u6307\u6807\u3002\u90a3\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c31\u6765\u770b\u770b\u4e00\u4e2a\u975e\u5e38\u5927\u80c6\u7684 CPU \u8bbe\u8ba1\u60f3\u6cd5\uff0c\u53eb\u4f5c\u8d85\u957f\u6307\u4ee4\u5b57\u8bbe\u8ba1\uff08Very Long Instruction Word\uff0cVLIW\uff09\u3002\u8fd9\u4e2a\u8bbe\u8ba1\u5462\uff0c\u4e0d\u4ec5\u60f3\u8ba9\u7f16\u8bd1\u5668\u6765\u4f18\u5316\u6307\u4ee4\u6570\uff0c\u8fd8\u60f3\u76f4\u63a5\u901a\u8fc7\u7f16\u8bd1\u5668\uff0c\u6765\u4f18\u5316 CPI\u3002<\/p>\n\n\n\n<p>\u56f4\u7ed5\u7740\u8fd9\u4e2a\u8bbe\u8ba1\u7684\uff0c\u662f Intel \u4e00\u4e2a\u8457\u540d\u7684\u201c\u53f2\u8bd7\u7ea7\u201d\u5931\u8d25\uff0c\u4e5f\u5c31\u662f\u8457\u540d\u7684 IA-64 \u67b6\u6784\u7684\u5b89\u817e\uff08Itanium\uff09\u5904\u7406\u5668\u3002\u53ea\u4e0d\u8fc7\uff0c\u8fd9\u4e00\u6b21\uff0c\u8d23\u4efb\u4e0d\u5168\u5728 Intel\uff0c\u8fd8\u8981\u62c9\u4e0a\u53ef\u4ee5\u79f0\u4e4b\u4e3a\u7845\u8c37\u8d77\u6e90\u7684\u53e6\u4e00\u5bb6\u516c\u53f8\uff0c\u4e5f\u5c31\u662f\u60e0\u666e\u3002<\/p>\n\n\n\n<p>\u4e4b\u6240\u4ee5\u79f0\u4e3a\u201c\u53f2\u8bd7\u201d\u7ea7\u5931\u8d25\uff0c\u8fd9\u4e2a\u8bf4\u6cd5\u6765\u6e90\u4e8e\u60e0\u666e\u6700\u65e9\u7ed9\u8fd9\u4e2a\u67b6\u6784\u53d6\u7684\u540d\u5b57\uff0c\u663e\u5f0f\u5e76\u53d1\u6307\u4ee4\u8fd0\u7b97\uff08Explicitly Parallel Instruction Computer\uff09\uff0c\u8fd9\u4e2a\u540d\u5b57\u7684\u7f29\u5199 EPIC\uff0c\u6b63\u597d\u662f\u201c\u53f2\u8bd7\u201d\u7684\u610f\u601d\u3002<\/p>\n\n\n\n<p>\u597d\u5de7\u4e0d\u5de7\uff0c\u5b89\u817e\u5904\u7406\u5668\u548c\u548c\u6211\u4e4b\u524d\u7ed9\u4f60\u4ecb\u7ecd\u8fc7\u7684 Pentium 4 \u4e00\u6837\uff0c\u5728\u5e02\u573a\u4e0a\u662f\u4e00\u4e2a\u5931\u8d25\u7684\u4ea7\u54c1\u3002\u5728\u7ecf\u5386\u4e86 12 \u5e74\u4e4b\u4e45\u7684\u8bbe\u8ba1\u7814\u53d1\u4e4b\u540e\uff0c\u5b89\u817e\u4e00\u4ee3\u53ea\u5356\u51fa\u4e86\u51e0\u5343\u5957\u3002\u800c\u5b89\u817e\u4e8c\u4ee3\uff0c\u5728\u4ece 2002 \u5e74\u5f00\u59cb\u53cd\u590d\u6323\u624e\u4e86 16 \u5e74\u4e4b\u540e\uff0c\u6700\u7ec8\u5728 2018 \u5e74\u88ab Intel \u5ba3\u544a\u653e\u5f03\uff0c\u9000\u51fa\u4e86\u5e02\u573a\u3002\u81ea\u6b64\uff0c\u4e16\u4e0a\u518d\u4e5f\u6ca1\u6709\u8fd9\u4e2a\u201c\u53f2\u8bd7\u201d\u670d\u52a1\u5668\u4e86\u3002<\/p>\n\n\n\n<p>\u90a3\u4e48\uff0c\u6211\u4eec\u5c31\u6765\u770b\u770b\uff0c\u8fd9\u4e2a\u8d85\u957f\u6307\u4ee4\u5b57\u7684\u5b89\u817e\u5904\u7406\u5668\u662f\u600e\u4e48\u56de\u4e8b\u513f\u3002<\/p>\n\n\n\n<p>\u5728\u4e71\u5e8f\u6267\u884c\u548c\u8d85\u6807\u91cf\u7684 CPU \u67b6\u6784\u91cc\uff0c\u6307\u4ee4\u7684\u524d\u540e\u4f9d\u8d56\u5173\u7cfb\uff0c\u662f\u7531 CPU \u5185\u90e8\u7684\u786c\u4ef6\u7535\u8def\u6765\u68c0\u6d4b\u7684\u3002\u800c\u5230\u4e86\u8d85\u957f\u6307\u4ee4\u5b57\u7684\u67b6\u6784\u91cc\u9762\uff0c\u8fd9\u4e2a\u5de5\u4f5c\u4ea4\u7ed9\u4e86\u7f16\u8bd1\u5668\u8fd9\u4e2a\u8f6f\u4ef6\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-43-1024x467.png\" alt=\"\" class=\"wp-image-7835\" width=\"558\" height=\"254\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-43-1024x467.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-43-300x137.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-43-768x350.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-43-830x379.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-43-230x105.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-43-350x160.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-43-480x219.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-43.png 1144w\" sizes=\"(max-width: 558px) 100vw, 558px\" \/><\/figure><\/div>\n\n\n\n<p>\u6211\u4ece\u4e13\u680f\u7b2c 5 \u8bb2\u5f00\u59cb\uff0c\u5c31\u7ed9\u4f60\u770b\u4e86\u4e0d\u5c11 C \u4ee3\u7801\u5230\u6c47\u7f16\u4ee3\u7801\u548c\u673a\u5668\u4ee3\u7801\u7684\u5bf9\u7167\u3002\u7f16\u8bd1\u5668\u5728\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\uff0c\u5176\u5b9e\u4e5f\u80fd\u591f\u77e5\u9053\u524d\u540e\u6570\u636e\u7684\u4f9d\u8d56\u3002\u4e8e\u662f\uff0c\u6211\u4eec\u53ef\u4ee5\u8ba9\u7f16\u8bd1\u5668\u628a\u6ca1\u6709\u4f9d\u8d56\u5173\u7cfb\u7684\u4ee3\u7801\u4f4d\u7f6e\u8fdb\u884c\u4ea4\u6362\u3002\u7136\u540e\uff0c\u518d\u628a\u591a\u6761\u8fde\u7eed\u7684\u6307\u4ee4\u6253\u5305\u6210\u4e00\u4e2a\u6307\u4ee4\u5305\u3002\u5b89\u817e\u7684 CPU \u5c31\u662f\u628a 3 \u6761\u6307\u4ee4\u53d8\u6210\u4e00\u4e2a\u6307\u4ee4\u5305\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-44-1024x772.png\" alt=\"\" class=\"wp-image-7836\" width=\"529\" height=\"399\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-44-1024x772.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-44-300x226.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-44-768x579.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-44-830x626.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-44-230x173.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-44-350x264.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-44-480x362.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-44.png 1096w\" sizes=\"(max-width: 529px) 100vw, 529px\" \/><\/figure><\/div>\n\n\n\n<p>CPU \u5728\u8fd0\u884c\u7684\u65f6\u5019\uff0c\u4e0d\u518d\u662f\u53d6\u4e00\u6761\u6307\u4ee4\uff0c\u800c\u662f\u53d6\u51fa\u4e00\u4e2a\u6307\u4ee4\u5305\u3002\u7136\u540e\uff0c\u8bd1\u7801\u89e3\u6790\u6574\u4e2a\u6307\u4ee4\u5305\uff0c\u89e3\u6790\u51fa 3 \u6761\u6307\u4ee4\u76f4\u63a5\u5e76\u884c\u8fd0\u884c\u3002\u53ef\u4ee5\u770b\u5230\uff0c\u4f7f\u7528\u8d85\u957f\u6307\u4ee4\u5b57\u67b6\u6784\u7684 CPU\uff0c\u540c\u6837\u662f\u91c7\u7528\u6d41\u6c34\u7ebf\u67b6\u6784\u7684\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u4e00\u7ec4\uff08Group\uff09\u6307\u4ee4\uff0c\u4ecd\u7136\u8981\u7ecf\u5386\u591a\u4e2a\u65f6\u949f\u5468\u671f\u3002\u540c\u6837\u7684\uff0c\u4e0b\u4e00\u7ec4\u6307\u4ee4\u5e76\u4e0d\u662f\u7b49\u4e0a\u4e00\u7ec4\u6307\u4ee4\u6267\u884c\u5b8c\u6210\u4e4b\u540e\u518d\u6267\u884c\uff0c\u800c\u662f\u5728\u4e0a\u4e00\u7ec4\u6307\u4ee4\u7684\u6307\u4ee4\u8bd1\u7801\u9636\u6bb5\uff0c\u5c31\u5f00\u59cb\u53d6\u6307\u4ee4\u4e86\u3002<\/p>\n\n\n\n<p>\u503c\u5f97\u6ce8\u610f\u7684\u4e00\u70b9\u662f\uff0c\u6d41\u6c34\u7ebf\u505c\u987f\u8fd9\u4ef6\u4e8b\u60c5\u5728\u8d85\u957f\u6307\u4ee4\u5b57\u91cc\u9762\uff0c\u5f88\u591a\u65f6\u5019\u4e5f\u662f\u7531\u7f16\u8bd1\u5668\u6765\u505a\u7684\u3002\u9664\u4e86\u505c\u4e0b\u6574\u4e2a\u5904\u7406\u5668\u6d41\u6c34\u7ebf\uff0c\u8d85\u957f\u6307\u4ee4\u5b57\u7684 CPU 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