{"id":124743,"date":"2024-10-25T16:47:25","date_gmt":"2024-10-25T08:47:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/124743\/"},"modified":"2024-10-25T16:47:26","modified_gmt":"2024-10-25T08:47:26","slug":"redis-%e8%a8%98%e9%8c%84%e6%ad%b7%e5%8f%b2%e6%9f%a5%e8%a9%a2%e6%99%82%e9%96%93%e7%b4%b0%e7%af%80","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/124743\/","title":{"rendered":"Redis \u8a18\u9304\u6b77\u53f2\u67e5\u8a62\u6642\u9593\u7d30\u7bc0"},"content":{"rendered":"

Redis \u8a18\u9304\u6b77\u53f2\u67e5\u8a62\u6642\u9593\u7d30\u7bc0<\/h1>\n

\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6027\u80fd\u548c\u6548\u7387\u662f\u6bcf\u500b\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u6240\u8ffd\u6c42\u7684\u76ee\u6a19\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u6301\u4e45\u5316\u7b49\u5834\u666f\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 Redis \u4e2d\u8a18\u9304\u6b77\u53f2\u67e5\u8a62\u7684\u6642\u9593\u7d30\u7bc0\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u512a\u5316\u5176\u61c9\u7528\u6027\u80fd\u3002<\/p>\n

Redis \u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

Redis \u662f\u4e00\u500b\u958b\u6e90\u7684\u5167\u5b58\u6578\u64da\u7d50\u69cb\u5b58\u5132\u7cfb\u7d71\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u3002\u7531\u65bc\u5176\u9ad8\u6548\u7684\u6027\u80fd\uff0cRedis \u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u9700\u8981\u5feb\u901f\u8b80\u53d6\u548c\u5beb\u5165\u7684\u5834\u666f\u3002\u5b83\u7684\u8a2d\u8a08\u4f7f\u5f97\u6578\u64da\u64cd\u4f5c\u7684\u5ef6\u9072\u6642\u9593\u6975\u4f4e\uff0c\u9019\u5c0d\u65bc\u9700\u8981\u5373\u6642\u97ff\u61c9\u7684\u61c9\u7528\u5c24\u70ba\u91cd\u8981\u3002<\/p>\n

\u70ba\u4ec0\u9ebc\u9700\u8981\u8a18\u9304\u67e5\u8a62\u6642\u9593<\/h2>\n

\u8a18\u9304\u67e5\u8a62\u6642\u9593\u7684\u4e3b\u8981\u539f\u56e0\u5728\u65bc\u6027\u80fd\u76e3\u63a7\u548c\u6545\u969c\u6392\u67e5\u3002\u901a\u904e\u5206\u6790\u67e5\u8a62\u7684\u6642\u9593\u7d30\u7bc0\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8b58\u5225\u51fa\u6027\u80fd\u74f6\u9838\uff0c\u4e26\u91dd\u5c0d\u6027\u5730\u9032\u884c\u512a\u5316\u3002\u6b64\u5916\uff0c\u9019\u4e9b\u6578\u64da\u9084\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u4e86\u89e3\u7528\u6236\u884c\u70ba\uff0c\u5f9e\u800c\u6539\u9032\u61c9\u7528\u7684\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n

\u5982\u4f55\u5728 Redis \u4e2d\u8a18\u9304\u67e5\u8a62\u6642\u9593<\/h2>\n

\u5728 Redis \u4e2d\u8a18\u9304\u67e5\u8a62\u6642\u9593\u53ef\u4ee5\u901a\u904e\u591a\u7a2e\u65b9\u5f0f\u5be6\u73fe\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u65b9\u6cd5\uff1a<\/p>\n

1. \u4f7f\u7528 Lua \u8173\u672c<\/h3>\n

Redis \u652f\u6301 Lua \u8173\u672c\uff0c\u9019\u4f7f\u5f97\u6211\u5011\u53ef\u4ee5\u5728\u57f7\u884c\u67e5\u8a62\u7684\u540c\u6642\u8a18\u9304\u6642\u9593\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n

\nlocal start_time = redis.call('TIME')\nlocal result = redis.call('GET', KEYS[1])\nlocal end_time = redis.call('TIME')\nlocal query_time = (end_time[1] - start_time[1]) * 1000 + (end_time[2] - start_time[2]) \/ 1000\nredis.call('LPUSH', 'query_times', query_time)\nreturn result\n<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528 `TIME` \u547d\u4ee4\u4f86\u7372\u53d6\u7576\u524d\u6642\u9593\uff0c\u7136\u5f8c\u8a08\u7b97\u67e5\u8a62\u7684\u57f7\u884c\u6642\u9593\uff0c\u6700\u5f8c\u5c07\u5176\u5b58\u5132\u5230\u4e00\u500b\u5217\u8868\u4e2d\u3002<\/p>\n
2. \u4f7f\u7528\u5ba2\u6236\u7aef\u4ee3\u78bc<\/h3>\n
\u9664\u4e86\u5728 Redis \u4e2d\u4f7f\u7528 Lua \u8173\u672c\uff0c\u9084\u53ef\u4ee5\u5728\u5ba2\u6236\u7aef\u4ee3\u78bc\u4e2d\u8a18\u9304\u67e5\u8a62\u6642\u9593\u3002\u4ee5\u4e0b\u662f Python \u7684\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n
\nimport time\nimport redis\n\nr = redis.Redis()\n\nstart_time = time.time()\nresult = r.get('my_key')\nend_time = time.time()\n\nquery_time = (end_time - start_time) * 1000  # \u8f49\u63db\u70ba\u6beb\u79d2\nr.lpush('query_times', query_time)\n<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u5728\u57f7\u884c\u67e5\u8a62\u4e4b\u524d\u8a18\u9304\u958b\u59cb\u6642\u9593\uff0c\u67e5\u8a62\u7d50\u675f\u5f8c\u8a18\u9304\u7d50\u675f\u6642\u9593\uff0c\u4e26\u8a08\u7b97\u67e5\u8a62\u7684\u57f7\u884c\u6642\u9593\u3002<\/p>\n
\u67e5\u8a62\u6642\u9593\u7684\u5206\u6790<\/h2>\n
\u4e00\u65e6\u6211\u5011\u8a18\u9304\u4e86\u67e5\u8a62\u6642\u9593\uff0c\u5c31\u53ef\u4ee5\u9032\u884c\u9032\u4e00\u6b65\u7684\u5206\u6790\u3002\u53ef\u4ee5\u4f7f\u7528 Redis \u7684 `LRANGE` \u547d\u4ee4\u4f86\u7372\u53d6\u67e5\u8a62\u6642\u9593\u7684\u6578\u64da\uff0c\u4e26\u9032\u884c\u7d71\u8a08\u5206\u6790\u3002\u4f8b\u5982\uff0c\u6211\u5011\u53ef\u4ee5\u8a08\u7b97\u5e73\u5747\u67e5\u8a62\u6642\u9593\u3001\u6700\u5927\u67e5\u8a62\u6642\u9593\u548c\u6700\u5c0f\u67e5\u8a62\u6642\u9593\u7b49\u3002<\/p>\n
\nquery_times = r.lrange('query_times', 0, -1)\nquery_times = [float(t) for t in query_times]\naverage_time = sum(query_times) \/ len(query_times)\nmax_time = max(query_times)\nmin_time = min(query_times)\n<\/code><\/pre>\n
\u7d50\u8ad6<\/h2>\n
\u5728 Redis \u4e2d\u8a18\u9304\u6b77\u53f2\u67e5\u8a62\u6642\u9593\u7d30\u7bc0\u662f\u4e00\u500b\u6709\u6548\u7684\u6027\u80fd\u76e3\u63a7\u624b\u6bb5\u3002\u901a\u904e\u4f7f\u7528 Lua \u8173\u672c\u6216\u5ba2\u6236\u7aef\u4ee3\u78bc\uff0c\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5730\u7372\u53d6\u67e5\u8a62\u7684\u57f7\u884c\u6642\u9593\uff0c\u4e26\u9032\u884c\u5f8c\u7e8c\u7684\u6578\u64da\u5206\u6790\u3002\u9019\u4e0d\u50c5\u6709\u52a9\u65bc\u8b58\u5225\u6027\u80fd\u74f6\u9838\uff0c\u9084\u80fd\u6539\u5584\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n
\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728 \u9999\u6e2f VPS<\/a> \u4e0a\u90e8\u7f72 Redis \u6216\u5176\u4ed6\u76f8\u95dc\u6280\u8853\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u5982\u4f55\u4f7f\u7528 Redis \u8a18\u9304\u6b77\u53f2\u67e5\u8a62\u6642\u9593\u7d30\u7bc0\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u512a\u5316\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-124743","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/124743","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=124743"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/124743\/revisions"}],"predecessor-version":[{"id":124744,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/124743\/revisions\/124744"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=124743"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=124743"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=124743"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}