{"id":2137,"date":"2014-02-19T02:25:24","date_gmt":"2014-02-18T18:25:24","guid":{"rendered":"https:\/\/www.csslayer.info\/wordpress\/?p=2137"},"modified":"2014-03-17T09:29:55","modified_gmt":"2014-03-17T01:29:55","slug":"%e7%a8%8b%e5%ba%8f%e5%91%98%e7%9a%84%e9%bb%91%e6%9a%97%e6%96%99%e7%90%86-1%ef%bc%9a%e7%ba%a2%e7%83%a7%e8%82%89","status":"publish","type":"post","link":"https:\/\/www.csslayer.info\/wordpress\/diary\/%e7%a8%8b%e5%ba%8f%e5%91%98%e7%9a%84%e9%bb%91%e6%9a%97%e6%96%99%e7%90%86-1%ef%bc%9a%e7%ba%a2%e7%83%a7%e8%82%89\/","title":{"rendered":"\u7a0b\u5e8f\u5458\u7684\u9ed1\u6697\u6599\u7406 1\uff1a\u7ea2\u70e7\u8089"},"content":{"rendered":"

 <\/p>\n

\u732e\u7ed9\u8001\u5a46\u5927\u4eba\uff0c\u81ea\u79f0\u4e0d\u4f1a\u505a\u996d\u7684 Mucid\uff0c\u548c\u5e7f\u5927\u6ca1\u65f6\u95f4\u7684\u4eba\u3002<\/p>\n

\u505a\u996d\u662f\u8981\u82b1\u65f6\u95f4\u7684\uff0c\u4f46\u662f\u603b\u662f\u5403\u6ce1\u9762\u662f\u4f1a\u5410\u7684\u3002\u5982\u4f55\u5728\u6700\u77ed\u7684\u65f6\u95f4\u6109\u5feb\u89e3\u51b3\u4e00\u987f\u996d\uff08\u5305\u62ec\u4ece\u5f00\u59cb\u505a\u5230\u6d17\u7897\u7ed3\u675f\uff09\uff0c\u540c\u65f6\u8fbe\u5230\u8fdc\u8d85\u8d8a\u6ce1\u9762\u7684\u6548\u679c\uff0c\u59cb\u7ec8\u662f\u6ca1\u65f6\u95f4\u7684\u61d2\u4eba\u7684\u8bfe\u9898\u3002<\/p>\n

\u672c\u7cfb\u5217\u7684\u76ee\u7684\uff0c\u4e0d\u662f\u8981\u5c06\u996d\u83dc\u505a\u5230\u5b8c\u7f8e\uff0c\u4e16\u754c\u4e0a\u8fd8\u6709\u996d\u5e97\u8fd9\u79cd\u5730\u65b9\u7684\u539f\u56e0\uff0c\u4e00\u65b9\u9762\u5c31\u662f\u56e0\u4e3a\u5b83\u80fd\u628a\u65f6\u95f4\u96c6\u4e2d\u8d77\u6765\u6d88\u8017\uff0c\u5982\u679c\u8981\u505a\u4e00\u4e2a\u70e4\u6570\u4e2a\u5c0f\u65f6\u7684\u8089\uff0c\u81ea\u5df1\u505a\u6765\u7684\u8bdd\uff0c\u6ca1\u6709\u7279\u522b\u7684\u95f2\u60c5\u662f\u4e0d\u4f1a\u505a\u7684\u3002\u90a3\u4e9b\u5de5\u4f5c\u5c31\u4ea4\u7ed9\u996d\u9986\u9910\u5385\u5c31\u597d\u4e86\uff0c\u56e0\u4e3a\u4f60\u82b1\u94b1\u4e70\u5230\u4e86\u505a\u996d\u7684\u65f6\u95f4\u3002<\/p>\n

\u9996\u5148\uff0c\u5bf9\u4e8e\u4e00\u987f\u996d\uff0c\u505a\u4e4b\u524d\u9700\u8981\u8003\u8651\u7684\u95ee\u9898\uff0c\u5982\u4f55\u51cf\u5c11\u9505\u7897\u7684\u4f7f\u7528\u6570\u91cf\uff0c\u5982\u4f55\u4f7f\u9505\u7897\u4e0d\u51b2\u7a81\uff0c\u5982\u4f55\u4f7f\u7089\u5b50\u4e0d\u51b2\u7a81\uff0c\u65f6\u95f4\u4e0a\u7684bottle neck \u5728\u54ea\u91cc\uff0c\u54ea\u91cc\u53ef\u4ee5\u65e0\u4eba\u503c\u5b88\uff0c\u54ea\u91cc\u9700\u8981\u5168\u7a0b\u64cd\u4f5c\u3002\uff08\u8bb2\u5230\u8fd9\u6211\u4e0d\u7981\u5c31\u60f3\u8d77\u4e86\u64cd\u4f5c\u7cfb\u7edf\u7684\u529f\u80fd\u5c31\u662f\u8c03\u5ea6\u8d44\u6e90\u7684\u5206\u914d<\/p>\n

\u4f8b\u5982\u4e3b\u98df\u51b3\u5b9a\u5403\u7c73\u996d\uff0c\u90a3\u4e48\u7535\u996d\u9505\u716e\u7c73\u996d\u768420\u5206\u949f\u5c31\u51b3\u5b9a\u4e86\u4f60\u505a\u996d\u65f6\u95f4\u7684\u6700\u77ed\u957f\u5ea6\u3002\uff08\u8bba\u00a0http:\/\/en.wikipedia.org\/wiki\/Amdahl%27s_law<\/a><\/p>\n

\u90a3\u4e48\u672c\u6b21\u5c31\u662f\uff0c\u559c\u95fb\u4e50\u89c1\u7684\u7ea2\u70e7\u8089\u3002\u8fd9\u4e2a\u83dc\u7684\u505a\u6cd5\u662f\u4e00\u4e2a\u4e1c\u5317\u540c\u5b66\u6559\u6211\u7684\uff0c\u611f\u8c22\u4ed6\u66fe\u7ecf\u7535\u8bdd\u652f\u63f4\u89e3\u7b54\u95ee\u9898\u3002<\/p>\n

\u7ea2\u70e7\u8089\uff08\u4efb\u4f55\u8089\uff09\u7684\u505a\u6cd5\u5f88\u591a\uff0c\u5373\u4f7f\u6bcf\u4e2a\u4eba\u5217\u4e3e\u4e00\u4e0b\u81ea\u5df1\u7236\u6bcd\u7684\u505a\u6cd5\uff0c\u6211\u76f8\u4fe1\u90fd\u5f88\u96be\u91cd\u6837\uff0c\u867d\u7136\u6211\u4e00\u822c\u7b80\u5355\u7c97\u66b4\u7684\u5c06\u5176\u5206\u4e3a\u716e\u6d3e\u548c\u70b8\u6d3e\uff0c\u5177\u4f53\u7684\u5206\u91ce\u4e5f\u5341\u5206\u7684\u7b80\u5355\uff0c\u5c31\u662f\u5c06\u8089\u641e\u719f\u7684\u65b9\u5f0f\u662f\u716e\u8fd8\u662f\u70b8\uff0c\u5f71\u54cd\u7684\u65b9\u9762\u5f53\u7136\u5c31\u662f\u6700\u540e\u7684\u53e3\u611f\u3002\u5728\u6211\u7684\u505a\u6cd5\u91cc\u9762\uff0c\u4e94\u82b1\u8089\u548c\u788e\u6392\u9aa8\u53ef\u4ee5\u70b8\uff0c\u9e21\u8089\uff0c\u725b\u8089\uff0c\u5927\u6392\u9aa8\uff0c\u548c\u4e1c\u5761\u8089\u7684\u505a\u6cd5\u653e\u5728\u716e\u8fd9\u8fb9\u3002<\/p>\n

\u70b8\u8fd9\u4e00\u65b9\u9762\uff0c\u5982\u679c\u662f\u4e94\u82b1\u8089\u7684\u8bdd\uff0c\u5207\u8089\u6cd5\u90fd\u662f\u5207\u5757\u3002\u90a3\u4e48\uff0c\u63a5\u4e0b\u6765\u662f\uff1a<\/p>\n

Note 1 \u4e3a\u4e86\u7701\u4e8b\u5c31\u662f\u8981\u907f\u514d\u5207\u4e1d\uff0c\u5207\u7247\uff0c\u4e43\u81f3\u8981\u907f\u514d\u5207\u3002<\/b><\/p>\n

\u5207\u662f\u5927\u90e8\u5206\u83dc\u7684\u524d\u7f6e\u5de5\u4f5c\uff0c\u56e0\u6b64\u4f60\u5f00\u59cb\u5207\u7684\u65f6\u5019\u53ef\u80fd\u538b\u6839\u5c31\u6ca1\u5f00\u59cb\u7b2c\u4e8c\u9053\u83dc\uff0c\u6216\u8005\u4f60\u6839\u672c\u5c31\u6253\u7b97\u505a\u4e00\u9053\u83dc\uff0c\u6309\u7167\u4f60\u4f7f\u7528\u7684\u53a8\u623f\u7ed3\u6784\uff0c\u5982\u679c\u60f3\u8981\u8fb9\u7092\u83dc\u8fb9\u5207\uff0c\u8fd8\u9700\u8981\u7089\u5b50\u65c1\u6709\u7a7a\u5730\u7ed9\u4f60\u5207\u83dc\uff0c\u5426\u5219\u4e0d\u5c0f\u5fc3\u70e7\u7cca\u83dc\u90a3\u662f\u59a5\u59a5\u7684\u3002\u6211\u73b0\u5728\u4f7f\u7528\u7684\u53a8\u623f\uff0c\u7089\u5b50\u65c1\u662f\u6ca1\u6709\u80fd\u5207\u83dc\u7684\u5730\u65b9\u7684\uff0c\u6240\u4ee5\u4e5f\u5c31\u62b9\u6d88\u4e86\u8fb9\u770b\u7092\u9505\uff0c\u8fb9\u5207\u83dc\u7684\u53ef\u80fd\u6027\u3002<\/p>\n

\u719f\u6089\u7684\u8bdd\uff0c\u4e00\u5757 15cmx20cmx1cm \u7684\u8089\uff0c\u52071cm – 1.5cm x 1cm x 3-4cm \u7684\u5757\uff0c\u662f\u975e\u5e38\u8f7b\u677e\u7684\u5de5\u4f5c\uff0c\u800c\u4e14\u53ea\u8981\u6709\u529b\u9053\uff0c\u4e0d\u7528\u89e3\u51bb\u5f97\u5f88\u5f7b\u5e95\u90fd\u53ef\u4ee5\u3002\u63d0\u9ad8\u6548\u7387\u7684\u4e00\u4e2a\u6280\u5de7\u4e4b\u4e00\u5c31\u662f\u5728\u5207\u7684\u65f6\u5019\u653e\u4e2a\u76d8\u5b50\u7528\u6765\u88c5\u6750\u6599\uff0c\u5728\u4e0a\u9505\u4e4b\u540e\uff0c\u9891\u7e41\u5728\u6848\u677f\u548c\u7089\u5b50\u4e4b\u95f4\u8dd1\u642c\u8fd0\u6750\u6599\u662f\u5f88\u5f71\u54cd\u5bf9\u706b\u5019\u7684\u63a7\u5236\u7684\u3002<\/p>\n

\u4e0a\u9505\u6cb9\u70b8\u4e94\u82b1\u8089\u3002\u65e2\u7136\u662f\u6cb9\u70b8\uff0c\u8fd9\u91cc\u7279\u522b\u63d0\u4e00\u4e0b\uff0c\u6cb9\u70b8\u7684\u6cb9\u91cf\u6709\u4e24\u79cd\uff0c\u4e00\u79cd\u662f\u5b8c\u5168\u6ca1\u8fc7\uff0c\u70b8\u9e21\u5757\u4ec0\u4e48\u7684\u65f6\u5019\u5c31\u5f88\u9002\u5408\uff0c\u8fd8\u6709\u5c31\u662f\u4e0b\u9762\u4e00\u5c42\u6cb9\uff0c\u9760\u4e0d\u65ad\u7ffb\u52a8\u6765\u5747\u5300\u53d7\u70ed\uff0c\u8fd9\u91cc\u6211\u4eec\u7528\u7b2c\u4e8c\u79cd\u3002\u65e2\u7136\u662f\u7b2c\u4e00\u671f\uff0c\u6211\u4eec\u591a\u8c08\u4e00\u4e9b\u522b\u7684\u7ecf\u9a8c\u3002\u7092\u52fa\u5e76\u4e0d\u6bd4\u7b77\u5b50\u66f4\u597d\u7528\uff0c\u5bf9\u4e8e\u4e0d\u7c98\u9505\u6765\u8bf4\uff0c\u91d1\u5c5e\u5236\u7684\u7092\u52fa\u4f1a\u4f24\u5bb3\u6d82\u5c42\u9700\u8981\u907f\u514d\u4f7f\u7528\uff0c\u800c\u6728\u8d28\u7684\u5219\u4e00\u822c\u504f\u539a\uff0c\u5f88\u96be\u505a\u7ffb\u52a8\u5355\u7247\u6750\u6599\u7684\u52a8\u4f5c\uff0c\u8fd9\u65f6\u5019\u4e07\u80fd\u7684\u7b77\u5b50\u5c31\u53ef\u4ee5\u4e0a\u573a\u4e86\uff0c\u603b\u4e4b\uff0c\u6211\u505a\u996d\u7528\u7b77\u5b50\u8fdc\u591a\u8fc7\u7528\u7092\u52fa\uff0c\u9664\u4e86\u8981\u5927\u8303\u56f4\u6405\u52a8\u7684\u65f6\u5019\uff0c\u4f8b\u5982\u7096\u716e\u4e00\u6574\u9505\u5496\u55b1\uff0c\u90fd\u662f\u9760\u7b77\u5b50\u6765\u641e\u5b9a\u7684\u3002\u540c\u65f6\u65e0\u5f62\u5f53\u4e2d\u51cf\u5c11\u4e86\u4e00\u4e2a\u4f60\u9700\u8981\u6d17\u7684\u9910\u5177\u3002<\/p>\n

\u5173\u4e8e\u6750\u6599\u8fd9\u91cc\u8981\u63d0\u4e00\u70b9\uff0c\u5c31\u662f\u5e76\u975e\u4e25\u683c\u8981\u6c42\u4e94\u82b1\u8089\uff0c\u4e0d\u8fc7\u5373\u4f7f\u6ca1\u4e94\u5c42\uff0c\u4f60\u81f3\u5c11\u8981\u4e24\u5c42\u5427\uff0c\u5982\u679c\u6ca1\u80a5\u8089\u7684\u8bdd\uff0c\u5efa\u8bae\u8fd8\u662f\u62ff\u6765\u505a\u522b\u7684\u83dc\uff0c\u56fd\u5185\u4e0d\u8bba\uff0c\u56fd\u5916\u7684\u732a\u641e\u4e0d\u61c2\u90fd\u6b7b\u7626\u6b7b\u7626\u7684\uff0c\u7eaf\u7626\u8089\u505a\u51fa\u6765\u4f1a\u5f88\u786c\uff0c\u5403\u8d77\u6765\u76f8\u5f53\u4e0d\u723d\u3002\u70b8\u5230\u7684\u7a0b\u5ea6\u6211\u63a7\u5236\u5728\u5b8c\u5168\u53d8\u91d1\u9ec4\u4e4b\u524d\uff0c\u7a0d\u5fae\u6709\u4e00\u4e9b\u5373\u53ef\uff0c\u80a5\u8089\u7684\u90e8\u5206\u5f00\u59cb\u7f29\u5c0f\u7684\u65f6\u5019\u3002\u5982\u679c\u8981\u63cf\u8ff0\u4e00\u4e0b\u7684\u8bdd\uff0c\u5982\u4e0b\u793a\u610f\u56fe\uff1a<\/p>\n

\"meat.png\"<\/a><\/p>\n

\u90a3\u4e48\u5c31\u53ef\u4ee5\u51fa\u9505\u53e6\u76db\u8d77\u6765\u5907\u7528\u3002\u53e6\u5916\u8fd9\u91cc\u7684\u6280\u5de7\u5c31\u662f\u7528\u7b77\u5b50\u5c06\u70b8\u597d\u7684\u6328\u4e2a\u8df3\u51fa\u6765\u653e\u7f6e\uff0c\u56e0\u4e3a\u9505\u53ef\u80fd\u7531\u4e8e\u5404\u79cd\u539f\u56e0\u53d7\u70ed\u4e0d\u5747\u5300\u3002\u4e4b\u540e\u6d17\u9505\uff0c\u5982\u679c\u4f60\u662f\u4e2a\u8282\u7701\u7684\u597d\u5b69\u5b50\uff0c\u6cb9\u53ef\u4ee5\u635e\u51fa\u6765\u5907\u7528\uff0c\u4e0d\u6d9d\u4e5f\u6ca1\u4e8b\uff0c\u56e0\u4e3a\u4e0d\u7528\u653e\u7279\u522b\u591a\u7684\u6cb9\uff0c\u4f46\u662f\u8fd8\u662f\u9700\u8981\u94fa\u6ee1\u9505\u4e00\u5c42\u3002<\/p>\n

\u7136\u540e\u5c31\u662f\u653e\u6cb9\uff0c\u71ac\u7cd6\u7684\u6b65\u9aa4\uff0c\u8fd9\u91cc\u7528\u51b0\u7cd6\uff0c\u767d\u7802\u7cd6\u5176\u5b9e\u90fd\u597d\uff0c\u8bf4\u6cd5\u662f\u7528\u51b0\u7cd6\u66f4\u597d\uff0c\u4f46\u662f\u4e07\u4e00\u4f60\u6ca1\u6709\u5462\uff0c\u4e5f\u4e0d\u7528\u6cc4\u6c14\u3002\u7cd6\u5316\u5f97\u5dee\u4e0d\u591a\u4e86\uff0c\u5c31\u8d76\u5feb\u653e\u8089\u7ffb\u7092\uff0c\u7cd6\u4f1a\u6700\u540e\u4ea7\u751f\u4e00\u79cd\u4eae\u6676\u6676\u7684\u6548\u679c\uff0c\u597d\u770b\u5176\u5b9e\u90fd\u662f\u9760\u7cd6\u7684\u3002\u4e4b\u540e\u653e\u6599\u9152\uff0c\u751f\u62bd\u3002\u5148\u653e\u6599\u9152\u7684\u8bdd\uff0c\u53ef\u4ee5\u7a0d\u7a0d\u964d\u4f4e\u4e0b\u9505\u7684\u6e29\u5ea6\uff0c\u5982\u679c\u4f60\u624b\u5fd9\u811a\u4e71\u7684\u8bdd\uff0c\u7ed9\u4f60\u4e00\u4e9b\u65f6\u95f4\u4e0d\u4f1a\u628a\u83dc\u70e7\u7cca\u3002\u4e2d\u9910\u4e00\u822c\u4e0d\u662f\u7279\u522b\u8bb2\u7a76\u91cf\u7684\u638c\u63e1\uff0c\u6240\u4ee5\u6211\u5176\u5b9e\u4e5f\u4ece\u6765\u6ca1\u641e\u6e05\u695a\u5230\u5e95\u5e94\u8be5\u653e\u591a\u5c11\uff0c\u6599\u9152\u653e\u591a\u4e86\u4e0d\u4f1a\u6b7b\uff0c\u4f46\u6211\u4e00\u822c\u4f1a\u653e\u5230\u89c9\u5f97\u9505\u5e95\u6574\u4e2a\u9762\u90fd\u56e0\u4e3a\u6599\u9152\u6cb8\u817e\uff0c\u5927\u6982\u6709\u4e00\u5927\u52fa\u3002\u9171\u6cb9\u662f\u7ea2\u70e7\u7684\u5173\u952e\uff0c\u53ef\u4ee5\u7a0d\u5fae\u5c11\u653e\uff0c\u6700\u540e\u8bd5\u5403\u51fa\u9505\u524d\u653e\u5c11\u4e86\u8fd8\u662f\u53ef\u4ee5\u8865\u6551\u7684\u3002\u5927\u6982\u4e24\u5927\u52fa\u5de6\u53f3\u662f\u5408\u9002\u7684\uff0c\u8001\u62bd\u4e00\u5c0f\u52fa\u4e0a\u8272\u3002\u7136\u540e\u5c31\u662f\u52a0\u6c34\uff0c\u8282\u7701\u65f6\u95f4\u7684\u529e\u6cd5\u5c31\u662f\u5c11\u52a0\uff0c\u56e0\u4e3a\u672c\u6765\u5c31\u70b8\u8fc7\uff0c\u5e76\u4e0d\u7528\u9760\u716e\u719f\uff0c\u4e3b\u8981\u662f\u4e3a\u4e86\u5165\u5473\uff0c\u5c0f\u7897 1\/4 \u5927\u6982\u5c31\u597d\u3002\u653e\u6c34\u4e4b\u540e\u7684\u64cd\u4f5c\u53ef\u4ee5\u4e0d\u7d27\u4e0d\u6162\u7684\u505a\uff0c\u6211\u4e00\u822c\u9009\u62e9\u7684\u6750\u6599\uff1a\u4e00\u4e2a\u5927\u6599\uff0c\u4e00\u7247\u6842\u76ae\uff0c4\u4e2a\u5c0f\u5e72\u8fa3\u6912\u63b0\u5f00\u3002\u5176\u4ed6\u7684\u9009\u62e9\u8fd8\u5305\u62ec\u82b1\u6912\uff0c\u8471\u59dc\u3002\u6309\u7167\u4f60\u6709\u7684\u6750\u6599\u6765\uff0c\u5373\u4f7f\u8fd9\u4e9b\u90fd\u6ca1\u6709\uff0c\u4e5f\u6b7b\u4e0d\u4e86\u4eba\uff0c\u56e0\u4e3a\u6838\u5fc3\u5473\u9053\u662f\u9171\u6cb9\uff0c\u5176\u4ed6\u7684\u76f8\u5bf9\u6765\u8bf4\u662f\u8f85\u52a9\uff0c\u5f53\u7136\u4f60\u653e\u4e86\u5f88\u591a\u8c03\u6599\u7684\u8bdd\uff0c\u6210\u5c31\u611f\u4e0d\u4e5f\u4f1a\u66b4\u589e\u5417 :D\u3002<\/p>\n

\u653e\u6c34\u4e4b\u540e\u5c31\u662f\u4e00\u6bb5\u65e0\u4eba\u503c\u5b88\u7684\u65f6\u95f4\uff0c\u81ea\u5df1\u4e00\u4e2a\u4eba\u505a\u996d\uff0c\u8003\u8651\u53ea\u505a\u4e86\u8089\u53ef\u4ee5\u968f\u4fbf\u641e\u70b9\u51c9\u83dc\uff0c\u6216\u8005\u8fdb\u884c\u4e00\u4e2a\u7092\u7684\u70ed\u83dc\u7684\u51c6\u5907\u3002\u5728\u716e\u7684\u65f6\u5019\u5982\u679c\u4f60\u4e00\u5f00\u59cb\u84b8\u7c73\u996d\u4e86\uff0c\u7c73\u996d\u5927\u6982\u8fd9\u65f6\u5c31\u4f1a\u719f\u4e86\u3002\u53ef\u4ee5\u505a\u7684\u4e8b\u60c5\u5f88\u591a\uff0c\u76db\u996d\uff0c\u6d17\u9505\uff0c\u5207\u83dc\uff0c\u5f53\u7136\u8fd8\u662f\u9700\u8981\u65f6\u4e0d\u65f6\u770b\u770b\u9505\u3002<\/p>\n

Note 2 \u6ce1\u9505\u4e0d\u662f\u4e0d\u6d17\u9505\u7684\u501f\u53e3\uff0c\u4e3a\u4e86\u957f\u671f\u4e0d\u65ad\u7684\u80fd\u7ee7\u7eed\u505a\u996d\uff0c\u5982\u679c\u6bcf\u6b21\u505a\u996d\u524d\u90fd\u9700\u8981\u6d17\u534a\u5929\uff0c\u653e\u4e86\u4e00\u767d\u5929\u7684\u9505\u5373\u4f7f\u6ca1\u5565\u95ee\u9898\uff0c\u4e5f\u53ef\u80fd\u8ba9\u4f60\u89c9\u5f97\u6076\u5fc3\u5f97\u4e0d\u884c\uff0clazy\u5f97\u6d17\u662f\u6ca1\u6cd5\u957f\u4e45\u7684\u3002<\/b>\uff08\u4e0d\u77e5\u4e3a\u4f55\u60f3\u5230\u4e86lazy evaluation\u2026\u2026<\/p>\n

\u524d\u9762\u8bf4\u5230\u716e\uff0c\u548c\u716e\u6d3e\u7684\u7ea2\u70e7\u8089\u4e0d\u540c\u7684\u662f\uff0c\u8981\u628a\u6c34\u76f8\u5bf9\u84b8\u5f97\u66f4\u5e72\uff0c\u56e0\u4e3a\u653e\u4e86\u7cd6\uff0c\u5224\u65ad\u7684\u4f9d\u636e\u5c31\u662f\u6c14\u6ce1\u53d8\u5f97\u7c98\u7a20\uff0c\u8fd9\u65f6\u5019\u4e3a\u4e86\u907f\u514d\u51fa\u5e7a\u86fe\u5b50\uff0c\u53d6\u51b3\u4e8e\u4f60\u7089\u5b50\u7684\u79cd\u7c7b\uff0c\u53ef\u4ee5\u5173\u706b\u6216\u8005\u5c0f\u706b\uff0c\u6563\u70ed\u6162\u7684\u53ef\u4ee5\u5173\u706b\uff0c\u7136\u540e\u8bd5\u5403\u770b\u770b\uff0c\u4e0d\u591f\u54b8\u7684\u8bdd\u6309\u534a\u5c0f\u52fa\u4e3a\u5355\u4f4d\u52a0\u751f\u62bd\uff0c\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4e0d\u8981\u7528\u521a\u5165\u53e3\u7684\u611f\u89c9\u53bb\u5224\u65ad\uff0c\u591a\u7a0d\u5fae\u56bc\u4e24\u4e0b\u53ef\u80fd\u4f1a\u53d1\u73b0\u5176\u5b9e\u591f\u5473\u4e86\u3002<\/p>\n

Note 3 \u7701\u76d8\u5b50\u7684\u5173\u952e\u5c31\u662f\u7528\u4e2a\u5927\u7897\u4e00\u53e3\u6c14\u76db\u996d\u83dc\uff0c\u6216\u8005\u76f4\u63a5\u5bf9\u7740\u9505\u5403\u3002<\/b><\/p>\n

Note 4 \u5403\u9971\u4e86\u8c01\u8fd8\u60f3\u6d17\u76d8\u5b50<\/b><\/p>\n

\u51fa\u9505\u540e\uff0c\u5efa\u8bae\u7acb\u523b\u6d17\u4e86\u5168\u90e8\u5de5\u5177\u518d\u5403\u3002<\/p>\n

\u6309\u7167\u6211\u7684\u5403\u996d\u901f\u5ea6\uff0c\u4ee5\u4e0a\u5168\u90e8\u53ef\u4ee5\u5728 45 \u5206\u949f\u5de6\u53f3\u89e3\u51b3\uff08\u4ece\u5f00\u59cb\u5230\u5403\u5b8c\u6d17\u5b8c\u7897<\/p>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

  \u732e\u7ed9\u8001\u5a46\u5927\u4eba\uff0c\u81ea\u79f0\u4e0d\u4f1a\u505a\u996d\u7684 Mucid\uff0c\u548c\u5e7f\u5927\u6ca1\u65f6\u95f4\u7684\u4eba\u3002 \u505a\u996d\u662f\u8981\u82b1\u65f6\u95f4\u7684\uff0c\u4f46\u662f\u603b\u662f\u5403\u6ce1\u9762\u662f\u4f1a\u5410\u7684\u3002\u5982\u4f55\u5728\u6700\u77ed\u7684\u65f6\u95f4\u6109\u5feb\u89e3\u51b3\u4e00\u987f\u996d\uff08\u5305\u62ec\u4ece\u5f00\u59cb\u505a\u5230\u6d17\u7897\u7ed3\u675f\uff09\uff0c\u540c\u65f6\u8fbe\u5230\u8fdc\u8d85\u8d8a\u6ce1\u9762\u7684\u6548\u679c\uff0c\u59cb\u7ec8\u662f\u6ca1\u65f6\u95f4\u7684\u61d2\u4eba\u7684\u8bfe\u9898\u3002 \u672c\u7cfb\u5217\u7684\u76ee\u7684\uff0c\u4e0d\u662f\u8981\u5c06\u996d\u83dc\u505a\u5230\u5b8c\u7f8e\uff0c\u4e16\u754c\u4e0a\u8fd8\u6709\u996d\u5e97\u8fd9\u79cd\u5730\u65b9\u7684\u539f\u56e0\uff0c\u4e00\u65b9\u9762\u5c31\u662f\u56e0\u4e3a\u5b83\u80fd\u628a\u65f6\u95f4\u96c6\u4e2d\u8d77\u6765\u6d88\u8017\uff0c\u5982\u679c\u8981\u505a\u4e00\u4e2a\u70e4\u6570\u4e2a\u5c0f\u65f6\u7684\u8089\uff0c\u81ea\u5df1\u505a\u6765\u7684\u8bdd\uff0c\u6ca1\u6709\u7279\u522b\u7684\u95f2\u60c5\u662f\u4e0d\u4f1a\u505a\u7684\u3002\u90a3\u4e9b\u5de5\u4f5c\u5c31\u4ea4\u7ed9\u996d\u9986\u9910\u5385\u5c31\u597d\u4e86\uff0c\u56e0\u4e3a\u4f60\u82b1\u94b1\u4e70\u5230\u4e86\u505a\u996d\u7684\u65f6\u95f4\u3002 \u9996\u5148\uff0c\u5bf9\u4e8e\u4e00\u987f\u996d\uff0c\u505a\u4e4b\u524d\u9700\u8981\u8003\u8651\u7684\u95ee\u9898\uff0c\u5982\u4f55\u51cf\u5c11\u9505\u7897\u7684\u4f7f\u7528\u6570\u91cf\uff0c\u5982\u4f55\u4f7f\u9505\u7897\u4e0d\u51b2\u7a81\uff0c\u5982\u4f55\u4f7f\u7089\u5b50\u4e0d\u51b2\u7a81\uff0c\u65f6\u95f4\u4e0a\u7684bottle neck \u5728\u54ea\u91cc\uff0c\u54ea\u91cc\u53ef\u4ee5\u65e0\u4eba\u503c\u5b88\uff0c\u54ea\u91cc\u9700\u8981\u5168\u7a0b\u64cd\u4f5c\u3002\uff08\u8bb2\u5230\u8fd9\u6211\u4e0d\u7981\u5c31\u60f3\u8d77\u4e86\u64cd\u4f5c\u7cfb\u7edf\u7684\u529f\u80fd\u5c31\u662f\u8c03\u5ea6\u8d44\u6e90\u7684\u5206\u914d \u4f8b\u5982\u4e3b\u98df\u51b3\u5b9a\u5403\u7c73\u996d\uff0c\u90a3\u4e48\u7535\u996d\u9505\u716e\u7c73\u996d\u768420\u5206\u949f\u5c31\u51b3\u5b9a\u4e86\u4f60\u505a\u996d\u65f6\u95f4\u7684\u6700\u77ed\u957f\u5ea6\u3002\uff08\u8bba\u00a0http:\/\/en.wikipedia.org\/wiki\/Amdahl%27s_law \u90a3\u4e48\u672c\u6b21\u5c31\u662f\uff0c\u559c\u95fb\u4e50\u89c1\u7684\u7ea2\u70e7\u8089\u3002\u8fd9\u4e2a\u83dc\u7684\u505a\u6cd5\u662f\u4e00\u4e2a\u4e1c\u5317\u540c\u5b66\u6559\u6211\u7684\uff0c\u611f\u8c22\u4ed6\u66fe\u7ecf\u7535\u8bdd\u652f\u63f4\u89e3\u7b54\u95ee\u9898\u3002 \u7ea2\u70e7\u8089\uff08\u4efb\u4f55\u8089\uff09\u7684\u505a\u6cd5\u5f88\u591a\uff0c\u5373\u4f7f\u6bcf\u4e2a\u4eba\u5217\u4e3e\u4e00\u4e0b\u81ea\u5df1\u7236\u6bcd\u7684\u505a\u6cd5\uff0c\u6211\u76f8\u4fe1\u90fd\u5f88\u96be\u91cd\u6837\uff0c\u867d\u7136\u6211\u4e00\u822c\u7b80\u5355\u7c97\u66b4\u7684\u5c06\u5176\u5206\u4e3a\u716e\u6d3e\u548c\u70b8\u6d3e\uff0c\u5177\u4f53\u7684\u5206\u91ce\u4e5f\u5341\u5206\u7684\u7b80\u5355\uff0c\u5c31\u662f\u5c06\u8089\u641e\u719f\u7684\u65b9\u5f0f\u662f\u716e\u8fd8\u662f\u70b8\uff0c\u5f71\u54cd\u7684\u65b9\u9762\u5f53\u7136\u5c31\u662f\u6700\u540e\u7684\u53e3\u611f\u3002\u5728\u6211\u7684\u505a\u6cd5\u91cc\u9762\uff0c\u4e94\u82b1\u8089\u548c\u788e\u6392\u9aa8\u53ef\u4ee5\u70b8\uff0c\u9e21\u8089\uff0c\u725b\u8089\uff0c\u5927\u6392\u9aa8\uff0c\u548c\u4e1c\u5761\u8089\u7684\u505a\u6cd5\u653e\u5728\u716e\u8fd9\u8fb9\u3002 \u70b8\u8fd9\u4e00\u65b9\u9762\uff0c\u5982\u679c\u662f\u4e94\u82b1\u8089\u7684\u8bdd\uff0c\u5207\u8089\u6cd5\u90fd\u662f\u5207\u5757\u3002\u90a3\u4e48\uff0c\u63a5\u4e0b\u6765\u662f\uff1a Note 1 \u4e3a\u4e86\u7701\u4e8b\u5c31\u662f\u8981\u907f\u514d\u5207\u4e1d\uff0c\u5207\u7247\uff0c\u4e43\u81f3\u8981\u907f\u514d\u5207\u3002 \u5207\u662f\u5927\u90e8\u5206\u83dc\u7684\u524d\u7f6e\u5de5\u4f5c\uff0c\u56e0\u6b64\u4f60\u5f00\u59cb\u5207\u7684\u65f6\u5019\u53ef\u80fd\u538b\u6839\u5c31\u6ca1\u5f00\u59cb\u7b2c\u4e8c\u9053\u83dc\uff0c\u6216\u8005\u4f60\u6839\u672c\u5c31\u6253\u7b97\u505a\u4e00\u9053\u83dc\uff0c\u6309\u7167\u4f60\u4f7f\u7528\u7684\u53a8\u623f\u7ed3\u6784\uff0c\u5982\u679c\u60f3\u8981\u8fb9\u7092\u83dc\u8fb9\u5207\uff0c\u8fd8\u9700\u8981\u7089\u5b50\u65c1\u6709\u7a7a\u5730\u7ed9\u4f60\u5207\u83dc\uff0c\u5426\u5219\u4e0d\u5c0f\u5fc3\u70e7\u7cca\u83dc\u90a3\u662f\u59a5\u59a5\u7684\u3002\u6211\u73b0\u5728\u4f7f\u7528\u7684\u53a8\u623f\uff0c\u7089\u5b50\u65c1\u662f\u6ca1\u6709\u80fd\u5207\u83dc\u7684\u5730\u65b9\u7684\uff0c\u6240\u4ee5\u4e5f\u5c31\u62b9\u6d88\u4e86\u8fb9\u770b\u7092\u9505\uff0c\u8fb9\u5207\u83dc\u7684\u53ef\u80fd\u6027\u3002 \u719f\u6089\u7684\u8bdd\uff0c\u4e00\u5757 15cmx20cmx1cm \u7684\u8089\uff0c\u52071cm – 1.5cm x 1cm x 3-4cm 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\u653e\u6c34\u4e4b\u540e\u5c31\u662f\u4e00\u6bb5\u65e0\u4eba\u503c\u5b88\u7684\u65f6\u95f4\uff0c\u81ea\u5df1\u4e00\u4e2a\u4eba\u505a\u996d\uff0c\u8003\u8651\u53ea\u505a\u4e86\u8089\u53ef\u4ee5\u968f\u4fbf\u641e\u70b9\u51c9\u83dc\uff0c\u6216\u8005\u8fdb\u884c\u4e00\u4e2a\u7092\u7684\u70ed\u83dc\u7684\u51c6\u5907\u3002\u5728\u716e\u7684\u65f6\u5019\u5982\u679c\u4f60\u4e00\u5f00\u59cb\u84b8\u7c73\u996d\u4e86\uff0c\u7c73\u996d\u5927\u6982\u8fd9\u65f6\u5c31\u4f1a\u719f\u4e86\u3002\u53ef\u4ee5\u505a\u7684\u4e8b\u60c5\u5f88\u591a\uff0c\u76db\u996d\uff0c\u6d17\u9505\uff0c\u5207\u83dc\uff0c\u5f53\u7136\u8fd8\u662f\u9700\u8981\u65f6\u4e0d\u65f6\u770b\u770b\u9505\u3002 Note 2 \u6ce1\u9505\u4e0d\u662f\u4e0d\u6d17\u9505\u7684\u501f\u53e3\uff0c\u4e3a\u4e86\u957f\u671f\u4e0d\u65ad\u7684\u80fd\u7ee7\u7eed\u505a\u996d\uff0c\u5982\u679c\u6bcf\u6b21\u505a\u996d\u524d\u90fd\u9700\u8981\u6d17\u534a\u5929\uff0c\u653e\u4e86\u4e00\u767d\u5929\u7684\u9505\u5373\u4f7f\u6ca1\u5565\u95ee\u9898\uff0c\u4e5f\u53ef\u80fd\u8ba9\u4f60\u89c9\u5f97\u6076\u5fc3\u5f97\u4e0d\u884c\uff0clazy\u5f97\u6d17\u662f\u6ca1\u6cd5\u957f\u4e45\u7684\u3002\uff08\u4e0d\u77e5\u4e3a\u4f55\u60f3\u5230\u4e86lazy evaluation\u2026\u2026 \u524d\u9762\u8bf4\u5230\u716e\uff0c\u548c\u716e\u6d3e\u7684\u7ea2\u70e7\u8089\u4e0d\u540c\u7684\u662f\uff0c\u8981\u628a\u6c34\u76f8\u5bf9\u84b8\u5f97\u66f4\u5e72\uff0c\u56e0\u4e3a\u653e\u4e86\u7cd6\uff0c\u5224\u65ad\u7684\u4f9d\u636e\u5c31\u662f\u6c14\u6ce1\u53d8\u5f97\u7c98\u7a20\uff0c\u8fd9\u65f6\u5019\u4e3a\u4e86\u907f\u514d\u51fa\u5e7a\u86fe\u5b50\uff0c\u53d6\u51b3\u4e8e\u4f60\u7089\u5b50\u7684\u79cd\u7c7b\uff0c\u53ef\u4ee5\u5173\u706b\u6216\u8005\u5c0f\u706b\uff0c\u6563\u70ed\u6162\u7684\u53ef\u4ee5\u5173\u706b\uff0c\u7136\u540e\u8bd5\u5403\u770b\u770b\uff0c\u4e0d\u591f\u54b8\u7684\u8bdd\u6309\u534a\u5c0f\u52fa\u4e3a\u5355\u4f4d\u52a0\u751f\u62bd\uff0c\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4e0d\u8981\u7528\u521a\u5165\u53e3\u7684\u611f\u89c9\u53bb\u5224\u65ad\uff0c\u591a\u7a0d\u5fae\u56bc\u4e24\u4e0b\u53ef\u80fd\u4f1a\u53d1\u73b0\u5176\u5b9e\u591f\u5473\u4e86\u3002 Note … Continue reading 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