{"id":201263,"date":"2025-05-10T09:38:21","date_gmt":"2025-05-10T01:38:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201263\/"},"modified":"2025-05-10T09:38:21","modified_gmt":"2025-05-10T01:38:21","slug":"redis%e5%87%ad%e5%95%a5%e5%8f%af%e4%bb%a5%e8%bf%99%e4%b9%88%e5%bf%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201263\/","title":{"rendered":"Redis\u51ed\u5565\u53ef\u4ee5\u8fd9\u4e48\u5feb"},"content":{"rendered":"

<\/b> <\/p>\n

Redis\u51ed\u5565\u53ef\u4ee5\u8fd9\u4e48\u5feb<\/h1>\n

<\/i>\u6536\u85cf<\/span> <\/p>\n

\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300aRedis\u51ed\u5565\u53ef\u4ee5\u8fd9\u4e48\u5feb\u300b\uff0c\u8986\u76d6\u4e86\u6570\u636e\u5e93\u7684\u5e38\u89c1\u57fa\u7840\u77e5\u8bc6\uff0c\u5176\u5b9e\u4e00\u4e2a\u8bed\u8a00\u7684\u5168\u90e8\u77e5\u8bc6\u70b9\u4e00\u7bc7\u6587\u7ae0\u662f\u4e0d\u53ef\u80fd\u8bf4\u5b8c\u7684\uff0c\u4f46\u5e0c\u671b\u901a\u8fc7\u8fd9\u4e9b\u95ee\u9898\uff0c\u8ba9\u8bfb\u8005\u5bf9\u81ea\u5df1\u7684\u638c\u63e1\u7a0b\u5ea6\u6709\u4e00\u5b9a\u7684\u8ba4\u8bc6(B \u6570)\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u66f4\u597d\u7684\u638c\u63e1\u5b83\u3002<\/p>\n

\u5728\u65e5\u5e38\u5f00\u53d1\u4e2d\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u6570\u636e\u7684\u4e00\u81f4\u6027\uff0c\u6211\u4eec\u4e00\u822c\u90fd\u9009\u62e9\u5173\u7cfb\u578b\u6570\u636e\u5e93\u6765\u5b58\u50a8\u6570\u636e\uff0c\u5982 MySQL<\/code>\uff0cOracle<\/code> \u7b49\uff0c\u56e0\u4e3a\u5173\u7cfb\u578b\u6570\u636e\u5e93\u6709\u7740\u4e8b\u52a1\u7684\u7279\u6027\u3002\u7136\u800c\u5728\u5e76\u53d1\u91cf\u6bd4\u8f83\u5927\u7684\u4e1a\u52a1\u573a\u666f\uff0c\u5173\u7cfb\u578b\u6570\u636e\u5e93\u5374\u53c8\u5f80\u5f80\u4f1a\u6210\u4e3a\u7cfb\u7edf\u74f6\u9888\uff0c\u65e0\u6cd5\u5b8c\u5168\u6ee1\u8db3\u6211\u4eec\u7684\u9700\u6c42\uff0c\u6240\u4ee5\u5c31\u9700\u8981\u4f7f\u7528\u5230\u7f13\u5b58\uff0c\u800c\u975e\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff0c\u5373 NoSQL<\/code> \u6570\u636e\u5e93\u5f80\u5f80\u53c8\u4f1a\u6210\u4e3a\u6700\u4f73\u9009\u62e9\u3002<\/p>\n

NoSQL<\/code> \u6570\u636e\u5e93\u6700\u5e38\u89c1\u7684\u89e3\u91ca\u662f non-relational<\/code>\uff0c\u4e5f\u6709\u4eba\u89e3\u91ca\u4e3a Not Only SQL<\/code>\u3002\u975e\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e0d\u4fdd\u8bc1\u4e8b\u52a1\uff0c\u4e5f\u5c31\u662f\u4e0d\u5177\u5907\u4e8b\u52a1 ACID<\/code> \u7279\u6027\uff0c\u8fd9\u4e5f\u662f\u975e\u5173\u7cfb\u578b\u6570\u636e\u5e93\u548c\u5173\u7cfb\u578b\u6570\u636e\u5e93\u6700\u5927\u7684\u533a\u522b\uff0c\u800c\u6211\u4eec\u5373\u5c06\u4ecb\u7ecd\u7684 Redis<\/code> \u5c31\u5c5e\u4e8e NoSQL<\/code> \u6570\u636e\u5e93\u7684\u4e00\u79cd\u3002<\/p>\n

\u4ec0\u4e48\u662f Redis<\/h2>\n

Redis<\/code> \u5168\u79f0\u662f\uff1aREmote DIctionary Service<\/code>\uff0c\u5373\u8fdc\u7a0b\u5b57\u5178\u670d\u52a1\u3002Redis<\/code> \u662f\u4e00\u4e2a\u5f00\u6e90\u7684\uff08\u9075\u5b88 BSD<\/code> \u534f\u8bae\uff09\u3001\u652f\u6301\u7f51\u7edc\u3001\u53ef\u57fa\u4e8e\u5185\u5b58\u4ea6\u53ef\u6301\u4e45\u5316\u7684\u65e5\u5fd7\u578b\u3001Key-Value<\/code> \u6570\u636e\u5e93\u3002<\/p>\n

Redis<\/code> \u5177\u6709\u4ee5\u4e0b\u7279\u6027\uff1a<\/h3>\n

1\u3001\u652f\u6301\u4e30\u5bcc\u7684\u6570\u636e\u7c7b\u578b\uff1a\u5b57\u7b26\u4e32\uff08strings\uff09\uff0c\u6563\u5217\uff08hashes\uff09\uff0c\u5217\u8868\uff08lists\uff09\uff0c\u96c6\u5408\uff08sets\uff09\uff0c\u6709\u5e8f\u96c6\u5408\uff08sorted sets\uff09\uff0c\u4f4d\u56fe\u7b49\u3002
2\u3001\u529f\u80fd\u4e30\u5bcc\uff1a\u63d0\u4f9b\u4e86\u6301\u4e45\u5316\u673a\u5236\uff0c\u8fc7\u671f\u7b56\u7565\uff0c\u8ba2\u9605\/\u53d1\u5e03\u7b49\u529f\u80fd\u3002
3\u3001\u9ad8\u6027\u80fd\uff0c\u9ad8\u53ef\u7528\u4e14\u652f\u6301\u96c6\u7fa4\u3002
4\u3001\u63d0\u4f9b\u4e86\u591a\u79cd\u8bed\u8a00\u7684 API<\/code>\u3002<\/p>\n

Redis \u7684\u5b89\u88c5<\/h3>\n

1\u3001\u4e0b\u8f7d\u5bf9\u5e94\u7248\u672c\u7684\u5b89\u88c5\u5305\uff0c\u5982\uff1a\uff0c\u5176\u4ed6\u7248\u672c\u4e5f\u53ef\u4ee5\u8fdb\u884c\u4e0b\u8f7d\u3002<\/p>\n

2\u3001\u4e0b\u8f7d\u597d\u4e4b\u540e\u4f20\u5230\u670d\u52a1\u5668\u6307\u5b9a\u76ee\u5f55\uff0c\u6267\u884c\u547d\u4ee4 tar -zxvf redis-5.0.5.tar.gz<\/code> \u8fdb\u884c\u89e3\u538b\u3002<\/p>\n

3\u3001\u89e3\u538b\u6210\u529f\u4e4b\u540e\uff0c\u8fdb\u5165 Redis<\/code> \u4e3b\u76ee\u5f55\uff0c\u6267\u884c\u547d\u4ee4 make && make install PREFIX=\/xxx\/xxx\/redis-5.0.5<\/code> \u8fdb\u884c\u5b89\u88c5\uff0c\u5982\u679c\u4e0d\u6307\u5b9a\u76ee\u5f55\uff0c\u5219\u9ed8\u8ba4\u662f\u5b89\u88c5\u5728 \/usr\/local<\/code> \u76ee\u5f55\u4e0b\u3002<\/p>\n

4\u3001\u5b89\u88c5\u6210\u529f\u4e4b\u540e\u53ef\u4ee5\u770b\u5230 Redis<\/code> \u4e3b\u76ee\u5f55\u4e0b\u591a\u4e86\u4e00\u4e2a bin<\/code> \u76ee\u5f55\uff0cbin<\/code> \u76ee\u5f55\u5185\u5305\u542b\u4e86\u4e00\u4e9b\u53ef\u6267\u884c\u811a\u672c\u3002<\/p>\n

5\u3001\u56de\u5230 Redis<\/code> \u4e3b\u76ee\u5f55\u4e0b\uff0c\u627e\u5230 redis.conf<\/code> \u914d\u7f6e\u6587\u4ef6\uff0c\u5c06\u5176\u4e2d\u7684\u914d\u7f6e daemonize no<\/code> \u4fee\u6539\u4e3a daemonize yes<\/code>\uff0c\u8868\u793a\u5728\u540e\u53f0\u542f\u52a8\u670d\u52a1\u3002<\/p>\n

6\u3001\u7136\u540e\u5c31\u53ef\u4ee5\u6267\u884c\u547d\u4ee4 \/xxx\/xxx\/redis-5.0.5\/bin\/redis-server \/xxx\/xxx\/redis-5.0.5\/redis.conf<\/code> \u542f\u52a8 Redis<\/code> \u670d\u52a1\u3002 Redis \u5230\u5e95\u6709\u591a\u5feb<\/p>\n

\u5927\u5bb6\u53ef\u80fd\u90fd\u77e5\u9053 Redis<\/code> \u5f88\u5feb\uff0c\u53ef\u662f Redis<\/code> \u5230\u5e95\u80fd\u6709\u591a\u5feb\u5462\uff0c\u6bd4\u5982 Redis<\/code> \u7684\u541e\u5410\u91cf\u80fd\u8fbe\u5230\u591a\u5c11\uff1f\u6211\u60f3\u8fd9\u5c31\u4e0d\u662f\u6bcf\u4e00\u4e2a\u4eba\u90fd\u80fd\u8bf4\u7684\u4e0a\u6765\u4e00\u4e2a\u5177\u4f53\u7684\u6570\u5b57\u4e86\u3002<\/p>\n

Redis<\/code> \u5b98\u65b9\u63d0\u4f9b\u4e86\u4e00\u4e2a\u6d4b\u8bd5\u811a\u672c\uff0c\u53ef\u4ee5\u4f9b\u6211\u4eec\u6d4b\u8bd5 Redis<\/code> \u7684 \u541e\u5410\u91cf\u3002<\/p>\n

redis-benchmark -q -n 100000<\/code> \u53ef\u4ee5\u6d4b\u8bd5\u5e38\u7528\u547d\u4ee4\u7684\u541e\u5410\u91cf\u3002 redis-benchmark -t set,lpush -n 100000 -q<\/code> \u6d4b\u8bd5 Redis<\/code> \u5904\u7406 set<\/code> \u548c lpush<\/code> \u547d\u4ee4\u7684\u541e\u5410\u91cf\u3002 redis-benchmark -n 100000 -q script load \"redis.call('set','foo','bar')\"<\/code> \u6d4b\u8bd5 Redis<\/code> \u5904\u7406 Lua<\/code> \u811a\u672c\u7b49\u541e\u5410\u91cf\u3002<\/p>\n

\u4e0b\u56fe\u5c31\u662f\u6211\u8fd9\u8fb9\u6267\u884c\u7b2c\u4e00\u6761\u547d\u4ee4\u7684\u81ea\u6d4b\u7ed3\u679c\uff0c\u53ef\u4ee5\u770b\u5230\u5927\u90e8\u5206\u547d\u4ee4\u7684\u541e\u5410\u91cf\u90fd\u53ef\u4ee5\u8fbe\u5230 4<\/code> \u4e07\u4ee5\u4e0a\uff0c\u4e5f\u5c31\u662f\u8bf4\u6bcf\u79d2\u949f\u53ef\u4ee5\u5904\u7406 4<\/code> \u4e07\u6b21\u4ee5\u4e0a\u8bf7\u6c42\uff1a<\/p>\n

<\/p>\n

\u4f46\u662f\u5982\u679c\u4f60\u4ee5\u4e3a\u8fd9\u5c31\u662f Redis<\/code> \u7684\u771f\u5b9e\u541e\u5410\u91cf\uff0c\u90a3\u5c31\u9519\u4e86\u3002\u5b9e\u9645\u4e0a\uff0cRedis<\/code> \u5b98\u65b9\u7684\u6d4b\u8bd5\u7ed3\u679c\u662f\u53ef\u4ee5\u8fbe\u5230 10<\/code> \u4e07\u7684\u541e\u5410\u91cf\uff0c\u4e0b\u56fe\u5c31\u662f\u5b98\u65b9\u63d0\u4f9b\u7684\u4e00\u4e2a\u57fa\u51c6\u6d4b\u8bd5\u7ed3\u679c\uff08\u7eb5\u5750\u6807\u5c31\u662f\u541e\u5410\u91cf\uff0c\u6a2a\u5750\u6807\u662f\u8fde\u63a5\u6570\uff09\uff1a<\/p>\n

<\/p>\n

Redis \u662f\u5355\u7ebf\u7a0b\u8fd8\u662f\u591a\u7ebf\u7a0b<\/h2>\n

\u8fd9\u4e2a\u95ee\u9898\u6bd4\u8f83\u7ecf\u5178\uff0c\u56e0\u4e3a\u5728\u5f88\u591a\u4eba\u7684\u8ba4\u77e5\u91cc\uff0cRedis<\/code> \u5c31\u662f\u5355\u7ebf\u7a0b\u7684\u3002\u7136\u800c Redis<\/code> \u4ece 4.0<\/code> \u7248\u672c\u5f00\u59cb\u5c31\u6709\u4e86\u591a\u7ebf\u7a0b\u7684\u6982\u5ff5\uff0c\u867d\u7136\u5904\u7406\u547d\u4ee4\u8bf7\u6c42\u7684\u6838\u5fc3\u6a21\u5757\u786e\u5b9e\u662f\u4fdd\u8bc1\u4e86\u5355\u7ebf\u7a0b\u6267\u884c\uff0c\u7136\u800c\u5728\u5176\u4ed6\u8bb8\u591a\u5730\u65b9\u5df2\u7ecf\u6709\u4e86\u591a\u7ebf\u7a0b\uff0c\u6bd4\u5982\uff1a\u5728\u540e\u53f0\u5220\u9664\u5bf9\u8c61\uff0c\u901a\u8fc7 Redis<\/code> \u6a21\u5757\u5b9e\u73b0\u963b\u585e\u547d\u4ee4\uff0c\u751f\u6210 dump<\/code> \u6587\u4ef6\uff0c\u4ee5\u53ca 6.0<\/code> \u7248\u672c\u4e2d\u7f51\u7edc I\/O<\/code> \u5b9e\u73b0\u4e86\u591a\u7ebf\u7a0b\u7b49\uff0c\u800c\u4e14\u5728\u672a\u6765 Redis<\/code> \u5e94\u8be5\u4f1a\u6709\u8d8a\u6765\u8d8a\u591a\u7684\u6a21\u5757\u5b9e\u73b0\u591a\u7ebf\u7a0b\u3002<\/p>\n

\u6240\u8c13\u7684\u5355\u7ebf\u7a0b\uff0c\u53ea\u662f\u8bf4 Redis<\/code> \u7684\u5904\u7406\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\uff08\u5373\u6267\u884c\u547d\u4ee4\uff09\u65f6\uff0c\u662f\u5355\u7ebf\u7a0b\u53bb\u6267\u884c\u7684\uff0c\u5e76\u4e0d\u662f\u8bf4\u6574\u4e2a Redis<\/code> \u90fd\u662f\u5355\u7ebf\u7a0b\u3002<\/p>\n

Redis \u4e3a\u4ec0\u4e48\u9009\u62e9\u4f7f\u7528\u5355\u7ebf\u7a0b\u6765\u6267\u884c\u8bf7\u6c42<\/h2>\n

Redis<\/code> \u4e3a\u4ec0\u4e48\u4f1a\u9009\u62e9\u4f7f\u7528\u5355\u7ebf\u7a0b\u5462\uff1f\u8fd9\u662f\u56e0\u4e3a CPU<\/code> \u6210\u4e3a Redis<\/code> \u74f6\u9888\u7684\u60c5\u51b5\u5e76\u4e0d\u5e38\u89c1\uff0c\u6210\u4e3a Redis<\/code> \u74f6\u9888\u7684\u901a\u5e38\u662f\u5185\u5b58\u6216\u7f51\u7edc\u5e26\u5bbd\u3002\u4f8b\u5982\uff0c\u5728\u4e00\u4e2a\u666e\u901a\u7684 Linux<\/code> \u7cfb\u7edf\u4e0a\u4f7f\u7528 pipelining<\/code> \u547d\u4ee4\uff0cRedis<\/code> \u53ef\u4ee5\u6bcf\u79d2\u5b8c\u6210 100<\/code> \u4e07\u4e2a\u8bf7\u6c42\uff0c\u6240\u4ee5\u5982\u679c\u6211\u4eec\u7684\u5e94\u7528\u7a0b\u5e8f\u4e3b\u8981\u4f7f\u7528 O(N)<\/code> \u6216 O(log(N))<\/code> \u590d\u6742\u5ea6\u7684\u547d\u4ee4\uff0c\u5b83\u51e0\u4e4e\u4e0d\u4f1a\u4f7f\u7528\u592a\u591a\u7684 CPU<\/code>\u3002<\/p>\n

\u90a3\u4e48\u65e2\u7136 CPU<\/code> \u4e0d\u4f1a\u6210\u4e3a\u74f6\u9888\uff0c\u7406\u6240\u5f53\u7136\u7684\u5c31\u6ca1\u5fc5\u8981\u53bb\u4f7f\u7528\u591a\u7ebf\u7a0b\u6765\u6267\u884c\u547d\u4ee4\uff0c\u6211\u4eec\u9700\u8981\u660e\u786e\u7684\u4e00\u4e2a\u95ee\u9898\u5c31\u662f\u591a\u7ebf\u7a0b\u4e00\u5b9a\u6bd4\u5355\u7ebf\u7a0b\u5feb\u5417\uff1f\u7b54\u6848\u662f\u4e0d\u4e00\u5b9a\u3002\u56e0\u4e3a\u591a\u7ebf\u7a0b\u4e5f\u662f\u6709\u4ee3\u4ef7\u7684\uff0c\u6700\u76f4\u63a5\u7684\u4e24\u4e2a\u4ee3\u4ef7\u5c31\u662f\u7ebf\u7a0b\u7684\u521b\u5efa\u548c\u9500\u6bc1\u7ebf\u7a0b\uff08\u5f53\u7136\u53ef\u4ee5\u901a\u8fc7\u7ebf\u7a0b\u6c60\u6765\u4e00\u5b9a\u7a0b\u5ea6\u7684\u51cf\u5c11\u9891\u7e41\u7684\u521b\u5efa\u7ebf\u7a0b\u548c\u9500\u6bc1\u7ebf\u7a0b\uff09\u4ee5\u53ca\u7ebf\u7a0b\u7684\u4e0a\u4e0b\u6587\u5207\u6362\u3002<\/p>\n

\u5728\u6211\u4eec\u7684\u65e5\u5e38\u7cfb\u7edf\u4e2d\uff0c\u4e3b\u8981\u53ef\u4ee5\u533a\u5206\u4e3a\u4e24\u79cd\uff1aCPU<\/code> \u5bc6\u96c6\u578b \u548c IO<\/code> \u5bc6\u96c6\u578b\u3002<\/p>\n

CPU \u5bc6\u96c6\u578b\uff1a<\/h3>\n

\u8fd9\u79cd\u7cfb\u7edf\u5c31\u8bf4\u660e CPU<\/code> \u7684\u5229\u7528\u7387\u5f88\u9ad8\uff0c\u90a3\u4e48\u4f7f\u7528\u591a\u7ebf\u7a0b\u53cd\u800c\u4f1a\u589e\u52a0\u4e0a\u4e0b\u6587\u5207\u6362\u800c\u5e26\u6765\u989d\u5916\u7684\u5f00\u9500\uff0c\u6240\u4ee5\u4f7f\u7528\u591a\u7ebf\u7a0b\u6548\u7387\u53ef\u80fd\u4f1a\u4e0d\u5347\u53cd\u964d\u3002\u4e3e\u4e2a\u4f8b\u5b50\uff1a\u5047\u5982\u4f60\u73b0\u5728\u5728\u5e72\u6d3b\uff0c\u4f60\u4e00\u76f4\u4e0d\u505c\u7684\u5728\u505a\u4e00\u4ef6\u4e8b\uff0c\u9700\u8981 1<\/code> \u5206\u949f\u53ef\u4ee5\u505a\u5b8c\uff0c\u4f46\u662f\u4f60\u4e2d\u9014\u603b\u662f\u88ab\u4eba\u6253\u65ad\uff0c\u9700\u8981\u82b1 1<\/code> \u79d2\u949f\u65f6\u95f4\u6b65\u884c\u5230\u65c1\u8fb9\u53bb\u505a\u53e6\u4e00\u4ef6\u4e8b\uff0c\u5047\u5982\u8fd9\u4ef6\u4e8b\u4e5f\u9700\u8981 1<\/code> \u5206\u949f\uff0c\u90a3\u4e48\u4f60\u56e0\u4e3a\u53cd\u590d\u5207\u6362\u505a\u4e24\u4ef6\u4e8b\uff0c\u6bcf\u5207\u6362\u4e00\u6b21\u5c31\u8981\u82b1 1<\/code> \u79d2\u949f\uff0c\u6700\u540e\u505a\u5b8c\u8fd9 2<\/code> \u4ef6\u4e8b\u7684\u65f6\u95f4\u80af\u5b9a\u5927\u4e8e 2<\/code> \u5206\u949f\uff08\u53d6\u51b3\u4e8e\u4e2d\u9014\u5207\u6362\u7684\u6b21\u6570\uff09\uff0c\u4f46\u662f\u5982\u679c\u4e2d\u9014\u4e0d\u88ab\u6253\u65ad\uff0c\u4f60\u505a\u5b8c\u4e00\u4ef6\u4e8b\u518d\u53bb\u505a\u53e6\u4e00\u4ef6\u4e8b\uff0c\u90a3\u4e48\u4f60\u6700\u591a\u53ea\u9700\u8981\u5207\u6362 1<\/code> \u6b21\uff0c\u4e5f\u5c31\u662f 2<\/code> \u5206 1<\/code> \u79d2\u5c31\u80fd\u505a\u5b8c\u3002<\/p>\n

 IO \u5bc6\u96c6\u578b\uff1a<\/h3>\n

IO<\/code> \u64cd\u4f5c\u4e5f\u53ef\u4ee5\u5206\u4e3a\u78c1\u76d8 IO<\/code> \u548c\u7f51\u7edc IO<\/code> \u7b49\u64cd\u4f5c\u3002\u5927\u90e8\u5206 IO<\/code> \u64cd\u4f5c\u7684\u7279\u70b9\u662f\u6bd4\u8f83\u8017\u65f6\u4e14 CPU<\/code> \u5229\u7528\u7387\u4e0d\u9ad8\uff0c\u6240\u4ee5 Redis 6.0<\/code> \u7248\u672c\u7f51\u7edc IO<\/code> \u4f1a\u6539\u8fdb\u4e3a\u591a\u7ebf\u7a0b\u3002\u81f3\u4e8e\u78c1\u76d8 IO<\/code>\uff0c\u56e0\u4e3a Redis<\/code> \u4e2d\u7684\u6570\u636e\u90fd\u5b58\u50a8\u5728\u5185\u5b58\uff08\u4e5f\u53ef\u4ee5\u6301\u4e45\u5316\uff09\uff0c\u6240\u4ee5\u5e76\u4e0d\u4f1a\u8fc7\u591a\u7684\u6d89\u53ca\u5230\u78c1\u76d8\u64cd\u4f5c\u3002\u4e3e\u4e2a\u4f8b\u5b50\uff1a\u5047\u5982\u4f60\u73b0\u5728\u7ed9\u6811\u82d7\u6d47\u6c34\uff0c\u4f60\u6bcf\u6d47\u5b8c\u4e00\u6b21\u6c34\u4e4b\u540e\u5c31\u9700\u8981\u7b49\u522b\u4eba\u7ed9\u4f60\u52a0\u6c34\u4e4b\u540e\u4f60\u624d\u80fd\u7ee7\u7eed\u6d47\uff0c\u90a3\u4e48\u5047\u5982\u8fd9\u4e2a\u7b49\u5f85\u8fc7\u7a0b\u9700\u8981 5<\/code> \u79d2\u949f\uff0c\u4e5f\u5c31\u662f\u8bf4\u4f60\u6d47\u5b8c\u4e00\u6b21\u6c34\u5c31\u53ef\u4ee5\u4f11\u606f 5<\/code> \u79d2\u949f\uff0c\u800c\u4f60\u5207\u6362\u53bb\u505a\u53e6\u4e00\u4ef6\u4e8b\u6765\u56de\u53ea\u9700\u8981 2<\/code> \u79d2\uff0c\u90a3\u4e48\u4f60\u5b8c\u5168\u53ef\u4ee5\u5148\u53bb\u505a\u53e6\u4e00\u4ef6\u4e8b\uff0c\u505a\u5b8c\u4e4b\u540e\u518d\u56de\u6765\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u5145\u5206\u5229\u7528\u4f60\u7a7a\u95f2\u7684 5<\/code> \u79d2\u949f\u65f6\u95f4\uff0c\u4ece\u800c\u63d0\u5347\u4e86\u6548\u7387\u3002<\/p>\n

\u4f7f\u7528\u591a\u7ebf\u7a0b\u8fd8\u4f1a\u5e26\u6765\u4e00\u4e2a\u95ee\u9898\u5c31\u662f\u6570\u636e\u7684\u5b89\u5168\u6027\uff0c\u6240\u4ee5\u591a\u7ebf\u7a0b\u7f16\u7a0b\u90fd\u4f1a\u6d89\u53ca\u5230\u9501\u7ade\u4e89\uff0c\u7531\u6b64\u4e5f\u4f1a\u5e26\u6765\u989d\u5916\u7684\u5f00\u9500\u3002<\/p>\n

\u4ec0\u4e48\u662f I\/O \u591a\u8def\u590d\u7528<\/h2>\n

I\/O<\/code> \u6307\u7684\u662f\u7f51\u7edc I\/O<\/code>\uff0c \u591a\u8def\u6307\u7684\u662f\u591a\u4e2a TCP<\/code> \u8fde\u63a5\uff08\u5982 Socket<\/code>\uff09\uff0c\u590d\u7528\u6307\u7684\u662f\u590d\u7528\u4e00\u4e2a\u6216\u591a\u4e2a\u7ebf\u7a0b\u3002I\/O<\/code> \u591a\u8def\u590d\u7528\u7684\u6838\u5fc3\u539f\u7406\u5c31\u662f\u4e0d\u518d\u7531\u5e94\u7528\u7a0b\u5e8f\u81ea\u5df1\u6765\u76d1\u542c\u8fde\u63a5\uff0c\u800c\u662f\u7531\u670d\u52a1\u5668\u5185\u6838\u66ff\u5e94\u7528\u7a0b\u5e8f\u76d1\u542c\u3002<\/p>\n

\u5728 Redis<\/code> \u4e2d\uff0c\u5176\u591a\u8def\u590d\u7528\u6709\u591a\u79cd\u5b9e\u73b0\uff0c\u5982\uff1aselect<\/code>\uff0cepoll<\/code>\uff0cevport<\/code>\uff0ckqueue<\/code> \u7b49\u3002<\/p>\n

\u6211\u4eec\u7528\u53bb\u9910\u5385\u5403\u996d\u4e3a\u7684\u4f8b\u5b50\u6765\u89e3\u91ca\u4e00\u4e0b I\/O<\/code> \u591a\u8def\u590d\u7528\u673a\u5236\uff08\u70b9\u9910\u4eba\u76f8\u5f53\u4e8e\u5ba2\u6237\u7aef\uff0c\u9910\u5385\u7684\u53a8\u623f\u76f8\u5f53\u4e8e\u670d\u52a1\u5668\uff0c\u53a8\u5e08\u5c31\u662f\u7ebf\u7a0b\uff09\u3002<\/p>\n

\u963b\u585e IO<\/code>\uff1a\u5f20\u4e09\u53bb\u9910\u5385\u5403\u996d\uff0c\u70b9\u4e86\u4e00\u9053\u83dc\uff0c\u8fd9\u65f6\u5019\u4ed6\u5565\u4e8b\u4e5f\u4e0d\u5e72\u4e86\uff0c\u5c31\u662f\u4e00\u76f4\u7b49\uff0c\u7b49\u5230\u53a8\u5e08\u7092\u597d\u83dc\uff0c\u4ed6\u5c31\u628a\u83dc\u7aef\u8d70\u5f00\u59cb\u5403\u996d\u4e86\u3002\u4e5f\u5c31\u662f\u5728\u83dc\u88ab\u7092\u597d\u4e4b\u524d\uff0c\u5f20\u4e09\u88ab\u963b\u585e\u4e86\uff0c\u8fd9\u5c31\u662f BIO<\/code>\uff08\u963b\u585e IO<\/code>\uff09\uff0c\u6548\u7387\u4f1a\u975e\u5e38\u4f4e\u4e0b\u3002<\/p>\n

\u975e\u963b\u585e IO<\/code>\uff1a\u5f20\u4e09\u53bb\u9910\u5385\u5403\u996d\uff0c\u70b9\u4e86\u4e00\u9053\u83dc\uff0c\u8fd9\u65f6\u5019\u5f20\u4e09\u4ed6\u4e0d\u4f1a\u4e00\u76f4\u7b49\uff0c\u627e\u4e86\u4e2a\u4f4d\u7f6e\u5750\u4e0b\uff0c\u5237\u5237\u6296\u97f3\uff0c\u6253\u6253\u7535\u8bdd\uff0c\u505a\u70b9\u5176\u4ed6\u4e8b\uff0c\u7136\u540e\u6bcf\u9694\u4e00\u6bb5\u65f6\u95f4\u5c31\u53bb\u53a8\u623f\u95ee\u4e00\u4e0b\u81ea\u5df1\u7684\u83dc\u597d\u4e86\u6ca1\u6709\u3002\u8fd9\u79cd\u5c31\u5c5e\u4e8e\u975e\u963b\u585e IO<\/code>\uff0c\u8fd9\u79cd\u65b9\u5f0f\u867d\u7136\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\uff0c\u4f46\u662f\u5982\u679c\u6709\u5927\u91cf IO<\/code> \u90fd\u6765\u5b9a\u671f\u8f6e\u8be2\uff0c\u4e5f\u4f1a\u7ed9\u670d\u52a1\u5668\u9020\u6210\u975e\u5e38\u5927\u7684\u8d1f\u62c5\u3002<\/p>\n

\u4e8b\u4ef6\u9a71\u52a8\u673a\u5236\uff1a\u5f20\u4e09\u53bb\u9910\u5385\u5403\u996d\uff0c\u70b9\u4e86\u4e00\u9053\u83dc\uff0c\u8fd9\u65f6\u5019\u4ed6\u627e\u4e86\u4e2a\u4f4d\u7f6e\u5750\u4e0b\u6765\u7b49\uff1a \u53a8\u623f\u90a3\u8fb9\u83dc\u505a\u597d\u4e86\u5c31\u4f1a\u628a\u83dc\u7aef\u51fa\u6765\u4e86\uff0c\u4f46\u662f\u5e76\u4e0d\u77e5\u9053\u8fd9\u9053\u83dc\u662f\u8c01\u7684\uff0c\u4e8e\u662f\u5c31\u6328\u4e2a\u8be2\u95ee\u987e\u5ba2\uff0c\u8fd9\u5c31\u662f\u591a\u8def\u590d\u7528\u4e2d\u7684 select<\/code> \u6a21\u578b\uff0c\u4e0d\u8fc7 select<\/code> \u6a21\u578b\u6700\u591a\u53ea\u80fd\u76d1\u542c 1024<\/code> \u4e2a socket<\/code>\uff08poll<\/code> \u6a21\u578b\u89e3\u51b3\u4e86\u8fd9\u4e2a\u9650\u5236\u95ee\u9898\uff09\u3002\u53a8\u623f\u505a\u597d\u4e86\u83dc\u76f4\u63a5\u628a\u83dc\u653e\u5728\u7a97\u53e3\u4e0a\uff0c\u5927\u558a\u4e00\u58f0\uff0c\u67d0\u67d0\u83dc\u505a\u597d\u4e86\uff0c\u662f\u8c01\u7684\u5feb\u8fc7\u6765\u62ff\uff0c\u8fd9\u65f6\u5019\u542c\u5230\u901a\u77e5\u7684\u4eba\u5c31\u4f1a\u81ea\u5df1\u53bb\u62ff\uff0c\u8fd9\u5c31\u662f\u591a\u8def\u590d\u7528\u4e2d\u7684 epoll<\/code> \u6a21\u578b\u3002<\/p>\n

\u9700\u8981\u6ce8\u610f\u7684\u662f\u5728 IO<\/code> \u591a\u8def\u590d\u7528\u673a\u5236\u4e0b\uff0c\u5ba2\u6237\u7aef\u53ef\u4ee5\u963b\u585e\u4e5f\u53ef\u4ee5\u9009\u62e9\u4e0d\u963b\u585e\uff08\u5927\u90e8\u5206\u573a\u666f\u4e0b\u662f\u963b\u585e IO<\/code>\uff09\uff0c\u8fd9\u4e2a\u8981\u5177\u4f53\u60c5\u51b5\u5177\u4f53\u5206\u6790\uff0c\u4f46\u662f\u5728\u591a\u8def\u590d\u7528\u673a\u5236\u4e0b\uff0c\u670d\u52a1\u7aef\u5c31\u53ef\u4ee5\u901a\u8fc7\u591a\u7ebf\u7a0b\uff08\u4e0a\u9762\u793a\u4f8b\u4e2d\u53ef\u4ee5\u591a\u51e0\u4e2a\u53a8\u5e08\u540c\u65f6\u7092\u83dc\uff09\u6765\u63d0\u5347\u5e76\u53d1\u6548\u7387\u3002<\/p>\n

Redis \u4e2d I\/O \u591a\u8def\u590d\u7528\u7684\u5e94\u7528<\/h2>\n

Redis<\/code> \u670d\u52a1\u5668\u662f\u4e00\u4e2a\u4e8b\u4ef6\u9a71\u52a8\u7a0b\u5e8f\uff0c\u670d\u52a1\u5668\u9700\u8981\u5904\u7406\u4e24\u7c7b\u4e8b\u4ef6\uff1a\u6587\u4ef6\u4e8b\u4ef6\u548c\u65f6\u95f4\u4e8b\u4ef6\u3002<\/p>\n

\u6587\u4ef6\u4e8b\u4ef6\uff1aRedis<\/code> \u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\uff08\u6216\u5176\u4ed6\u670d\u52a1\u5668\uff09\u8fdb\u884c\u901a\u4fe1\u4f1a\u4ea7\u751f\u76f8\u5e94\u7684\u6587\u4ef6\u4e8b\u4ef6\uff0c\u7136\u540e\u670d\u52a1\u5668\u901a\u8fc7\u76d1\u542c\u5e76\u5904\u7406\u8fd9\u4e9b\u4e8b\u4ef6\u6765\u5b8c\u6210\u4e00\u7cfb\u5217\u7684\u901a\u4fe1\u64cd\u4f5c\u3002<\/p>\n

\u65f6\u95f4\u4e8b\u4ef6\uff1aRedis<\/code> \u5185\u90e8\u7684\u4e00\u4e9b\u5728\u7ed9\u5b9a\u65f6\u95f4\u4e4b\u5185\u9700\u8981\u8fdb\u884c\u7684\u64cd\u4f5c\u3002<\/p>\n

Redis<\/code> \u7684\u6587\u4ef6\u4e8b\u4ef6\u5904\u7406\u5668\u4ee5\u5355\u7ebf\u7a0b\u7684\u65b9\u5f0f\u8fd0\u884c\uff0c\u5176\u5185\u90e8\u4f7f\u7528\u4e86 I\/O<\/code> \u591a\u8def\u590d\u7528\u7a0b\u5e8f\u6765\u540c\u65f6\u76d1\u542c\u591a\u4e2a\u5957\u63a5\u5b57\uff08Socket<\/code>\uff09\u8fde\u63a5\uff0c\u63d0\u5347\u4e86\u6027\u80fd\u7684\u540c\u65f6\u53c8\u4fdd\u6301\u4e86\u5185\u90e8\u5355\u7ebf\u7a0b\u8bbe\u8ba1\u7684\u7b80\u5355\u6027\u3002\u4e0b\u56fe\u5c31\u662f\u6587\u4ef6\u4e8b\u4ef6\u5904\u7406\u5668\u7684\u793a\u610f\u56fe\uff1a<\/p>\n

<\/p>\n

I\/O<\/code> \u591a\u8def\u590d\u7528\u7a0b\u5e8f\u867d\u7136\u4f1a\u540c\u65f6\u76d1\u542c\u591a\u4e2a Socket<\/code> \u8fde\u63a5\uff0c\u4f46\u662f\u5176\u4f1a\u5c06\u76d1\u542c\u7684 Socket<\/code> \u90fd\u653e\u5230\u4e00\u4e2a\u961f\u5217\u91cc\u9762\uff0c\u7136\u540e\u901a\u8fc7\u8fd9\u4e2a\u961f\u5217\u6709\u5e8f\u7684\uff0c\u540c\u6b65\u7684\u5c06\u6bcf\u4e2a Socket<\/code> \u5bf9\u5e94\u7684\u4e8b\u4ef6\u4f20\u9001\u7ed9\u6587\u4ef6\u4e8b\u4ef6\u5206\u6d3e\u5668\uff0c\u518d\u7531\u6587\u4ef6\u4e8b\u4ef6\u5206\u6d3e\u5668\u5206\u6d3e\u7ed9\u5bf9\u5e94\u7684\u4e8b\u4ef6\u5904\u7406\u5668\u8fdb\u884c\u5904\u7406\uff0c\u53ea\u6709\u5f53\u4e00\u4e2a Socket<\/code> \u6240\u5bf9\u5e94\u7684\u4e8b\u4ef6\u88ab\u5904\u7406\u5b8c\u6bd5\u4e4b\u540e\uff0cI\/O<\/code>\u591a\u8def\u590d\u7528\u7a0b\u5e8f\u624d\u4f1a\u7ee7\u7eed\u5411\u6587\u4ef6\u4e8b\u4ef6\u5206\u6d3e\u5668\u4f20\u9001\u4e0b\u4e00\u4e2a Socket<\/code> \u6240\u5bf9\u5e94\u7684\u4e8b\u4ef6\uff0c\u8fd9\u4e5f\u53ef\u4ee5\u9a8c\u8bc1\u4e0a\u9762\u7684\u7ed3\u8bba\uff0c\u5904\u7406\u5ba2\u6237\u7aef\u7684\u547d\u4ee4\u8bf7\u6c42\u662f\u5355\u7ebf\u7a0b\u7684\u65b9\u5f0f\u9010\u4e2a\u5904\u7406\uff0c\u4f46\u662f\u4e8b\u4ef6\u5904\u7406\u5668\u5185\u5e76\u4e0d\u662f\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u3002<\/p>\n

Redis \u4e3a\u4ec0\u4e48\u8fd9\u4e48\u5feb<\/h2>\n

Redis<\/code> \u4e3a\u4ec0\u4e48\u8fd9\u4e48\u5feb\u7684\u539f\u56e0\u524d\u9762\u5df2\u7ecf\u57fa\u672c\u63d0\u5230\u4e86\uff0c\u73b0\u5728\u6211\u4eec\u518d\u8fdb\u884c\u603b\u7ed3\u4e00\u4e0b\uff1a<\/p>\n

1\u3001Redis<\/code> \u662f\u4e00\u6b3e\u7eaf\u5185\u5b58\u7ed3\u6784\uff0c\u907f\u514d\u4e86\u78c1\u76d8 I\/O<\/code> \u7b49\u8017\u65f6\u64cd\u4f5c\u3002<\/p>\n

2\u3001Redis<\/code> \u547d\u4ee4\u5904\u7406\u7684\u6838\u5fc3\u6a21\u5757\u4e3a\u5355\u7ebf\u7a0b\uff0c\u51cf\u5c11\u4e86\u9501\u7ade\u4e89\uff0c\u4ee5\u53ca\u9891\u7e41\u521b\u5efa\u7ebf\u7a0b\u548c\u9500\u6bc1\u7ebf\u7a0b\u7684\u4ee3\u4ef7\uff0c\u51cf\u5c11\u4e86\u7ebf\u7a0b\u4e0a\u4e0b\u6587\u5207\u6362\u7684\u6d88\u8017\u3002<\/p>\n

3\u3001\u91c7\u7528\u4e86 I\/O<\/code> \u591a\u8def\u590d\u7528\u673a\u5236\uff0c\u5927\u5927\u63d0\u5347\u4e86\u5e76\u53d1\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

Redis\u51ed\u5565\u53ef\u4ee5\u8fd9\u4e48\u5feb \u6536\u85cf ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-201263","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201263","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=201263"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201263\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201263"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201263"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}