\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff1a\u4f8b\u5982mysql\u3001oracle\u3001db2\u7b49\uff0c\u8868\u4e0e\u8868\u4e4b\u95f4\u5b58\u5728\u5173\u8054\u5173\u7cfb\uff0c\u5b58\u653e\u7684\u662f\u7ed3\u6784\u5316\u7684\u6570\u636e\r\n\u975e\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff1a\u4f8b\u5982redis\u3001memcache\u7b49\uff0c\u6ca1\u6709\u8868\u7684\u6982\u5ff5\uff0c\u6570\u636e\u5b58\u653e\u5f62\u5f0f\u793akey:value\uff0c\u5b58\u653e\u7684\u662f\u975e\u7ed3\u6784\u5316\u7684\u6570\u636e<\/code><\/pre>\n2\u3001redis\u662f\u7528\u6765\u5e72\u4ec0\u4e48\u7684\uff1f
\nredis\u53ef\u4ee5\u53d6\u4ee3mysql\u4f5c\u4e3a\u540e\u7aef\u6570\u636e\u5e93\u4f7f\u7528\uff08\u5fae\u535a\u5c31\u662f\u8fd9\u4e48\u5e72\u7684\uff09\uff0c\u4f46\u66f4\u591a\u65f6\u5019\uff0c\u5728\u67b6\u6784\u4e2d\uff0c\u6211\u4eec\u4f1a\u7528redis\u6765\u505a\u6570\u636e\u5e93\u7684\u8bfb\u7f13\u5b58\uff0c\u4ee5\u6b64\u6765\u51cf\u8f7b\u6570\u636e\u5e93\u8bfb\u53d6\u538b\u529b\uff08\u800c\u4e0d\u662f\u5199\u538b\u529b\uff09\uff0c\u5e76\u4e14\u63d0\u5347\u7528\u6237\u7684\u8bbf\u95ee\u901f\u5ea6\uff0c\u56e0\u4e3aredis\u662f\u628a\u6570\u636e\u5b58\u653e\u5230\u5185\u5b58\u4e2d\u3002\u4e0eredis\u4e00\u6837\uff0cmemcache\u4e5f\u53ef\u4ee5\u4f5c\u4e3a\u6570\u636e\u5e93\u7684\u7f13\u5b58<\/p>\n
3\u3001\u4e3a\u4f55\u4e00\u5b9a\u8981\u5f15\u5165\u6570\u636e\u5e93\u7684\u8bfb\u7f13\u5b58\u5462<\/p>\n
\u50a8\u5907\u77e5\u8bc6\uff1a\u6570\u636e\u5e93\u7684\u7f13\u5b58\u6709Query Cache\uff08\u68c0\u67e5Qcache\uff09\u4e0eBuffer pool<\/span><\/p>\nQ\uff1ainnodb buffer pool\u548cQcache\u7684\u7f13\u5b58\u533a\u522b\uff1f<\/p>\n
A\uff1a<\/p>\n
1\u3001Qcacche\u7f13\u5b58\u7684\u662fSQL\u8bed\u53e5\u53ca\u8be5SQL\u67e5\u8be2\u51fa\u7684\u7ed3\u679c\u96c6<\/span>\uff0c\u7f13\u5b58\u5728\u5185\u5b58\uff0c\u6700\u7b80\u5355\u7684\u60c5\u51b5\u662fSQL\u4e00\u76f4\u4e0d\u91cd\u590d\uff0c\u90a3Qcache\u7684\u547d\u4ee4\u7387\u80af\u5b9a\u662f0\uff1b<\/p>\n2\u3001buffer pool\u4e2d\u7f13\u5b58\u7684\u662f\u6574\u5f20\u8868\u4e2d\u7684\u6570\u636e<\/span>\uff0c\u7f13\u5b58\u5728\u5185\u5b58\uff0cSQL\u518d\u53d8\u53ea\u8981\u6570\u636e\u90fd\u5728\u5185\u5b58\uff0c\u90a3\u4e48\u547d\u4e2d\u7387\u5c31\u662f100%\u3002<\/p>\n![\"\"](\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\")
<\/div><\/p>\n\u67e5\u8be2\u7f13\u5b58\uff08QueryCache\uff09\u4e0e\u5b58\u50a8\u5f15\u64ce\u5c42-innodb buffer pool\u8be6\u89e3<\/span><\/i><\/div><\/p>\n\u4e00\u3001\u67e5\u8be2\u7f13\u5b58\uff08QueryCache\uff09<\/span><\/p>\n1\u3001\u5173\u4e8e\u67e5\u8be2\u7f13\u5b58\u673a\u5236<\/p>\n
\u5f00\u542f\u4e86\u7f13\u5b58\uff0c\u4f1a\u81ea\u52a8\u5c06\u67e5\u8be2\u8bed\u53e5\u548c\u7ed3\u679c\u96c6\u8fd4\u56de\u5230\u5185\u5b58\uff0c\u4e0b\u6b21\u518d\u67e5\u76f4\u63a5\u4ece\u5185\u5b58\u4e2d\u53d6\uff1b<\/p>\n
\u67e5\u8be2\u7f13\u5b58\u4f1a\u8ddf\u8e2a\u7cfb\u7edf\u4e2d\u6bcf\u5f20\u8868\uff0c\u82e5\u8868\u53d1\u751f\u53d8\u5316\uff0c\u5219\u548c\u8be5\u5f20\u8868\u76f8\u5173\u7684\u6240\u6709\u67e5\u8be2\u7f13\u5b58\u5168\u90e8\u5931\u6548\uff0c\u8fd9\u662f\u548cbuffer pool\u7f13\u5b58\u673a\u5236\u5f88\u5927\u7684\u533a\u522b\uff1b<\/p>\n
\u68c0\u67e5\u67e5\u8be2\u7f13\u5b58\u65f6\uff0cMYSQL\u4e0d\u4f1a\u5bf9SQL\u505a\u4efb\u4f55\u5904\u7406\uff0c\u5b83\u7cbe\u786e\u7684\u4f7f\u7528\u5ba2\u6237\u7aef\u4f20\u6765\u7684\u67e5\u8be2\uff0c\u53ea\u8981\u5b57\u7b26\u5927\u5c0f\u5199\u6216\u6ce8\u91ca\u6709\u70b9\u4e0d\u540c\uff0c\u67e5\u8be2\u7f13\u5b58\u5c31\u8ba4\u4e3a\u662f\u4e0d\u540c\u7684\u67e5\u8be2\uff1b<\/p>\n
\u4efb\u4f55\u4e00\u4e2a\u5305\u542b\u4e0d\u786e\u5b9a\u7684\u51fd\u6570\uff08\u6bd4\u5982now()\u3001curren_date()\uff09\u7684\u67e5\u8be2\u4e0d\u4f1a\u88ab\u7f13\u5b58\u3002<\/p>\n
\u6ce8\u610f\uff1a<\/p>\n
\u67e5\u8be2\u7f13\u5b58\u53ef\u6539\u5584\u6027\u80fd\uff0c\u4f46\u662f\u5f00\u542f\u67e5\u8be2\u7f13\u5b58\u5bf9\u8bfb\u5199\u589e\u52a0\u4e86\u989d\u5916\u5f00\u9500\u3002<\/p>\n
1\u3001\u5bf9\u4e8e\u8bfb\uff0c\u5728\u67e5\u8be2\u524d\u9700\u5148\u68c0\u67e5\u7f13\u5b58\uff1b<\/p>\n
2\u3001\u5bf9\u4e8e\u5199\uff0c\u5199\u5165\u540e\u9700\u66f4\u65b0\u7f13\u5b58\u3002<\/p>\n
\u4e00\u822c\u60c5\u51b5\u4e0b\u8fd9\u4e9b\u5f00\u9500\u76f8\u5bf9\u8f83\u5c0f\uff0c\u56e0\u6b64\u9700\u8981\u6839\u636e\u4e1a\u52a1\u6743\u8861\u662f\u5426\u5f00\u542f\u67e5\u8be2\u7f13\u5b58\u3002<\/p>\n
2\u3001Qcache\u53c2\u6570<\/p>\n
mysql> show variables like '%query_cache%';\r\n+------------------------------+---------+\r\n| Variable_name | Value |\r\n+------------------------------+---------+\r\n| have_query_cache | YES |\r\n| query_cache_limit | 1048576 |\r\n| query_cache_min_res_unit | 4096 |\r\n| query_cache_size | 1048576 |\r\n| query_cache_type | OFF |\r\n| query_cache_wlock_invalidate | OFF |\r\n+------------------------------+---------+\r\n\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014<\/pre>\n\u53c2\u6570\u89e3\u6790\uff1a<\/p>\n
\uff081\uff09\u3001have_query_cache\uff1a\u8be5MySQL\u662f\u5426\u652f\u6301Query Cache\uff1b<\/p>\n
\uff082\uff09\u3001query_cache_limit\uff1a\u7f13\u5b58\u5757\u5927\u5c0f\uff0c\u8d85\u8fc7\u8be5\u5927\u5c0f\u4e0d\u4f1a\u88ab\u7f13\u5b58<\/p>\n
\uff083\uff09\u3001query_cache_min_res_unit\uff1a\u6bcf\u4e2aqcache\u6700\u5c0f\u7684\u7f13\u5b58\u7a7a\u95f4\u5927\u5c0f<\/p>\n
\uff084\uff09\u3001query_cache_size\uff1a\u5206\u914d\u7ed9\u67e5\u8be2\u7f13\u5b58\u7684\u603b\u5185\u5b58<\/p>\n
\uff085\uff09\u3001query_cache_type\uff1a\u662f\u5426\u5f00\u542f\u67e5\u8be2\u7f13\u5b58<\/p>\n
\uff086\uff09\u3001query_cache_wlock_invalidate\uff1a\u63a7\u5236\u5f53\u6709\u9501\u52a0\u5728\u8868\u4e0a\u7684\u65f6\u5019\uff0c\u662f\u5426\u5148\u8ba9\u8be5\u8868\u76f8\u5173\u7684 Query Cache\u5931\u6548<\/p>\n
<\/p>\n
3\u3001\u914d\u7f6e\u67e5\u8be2\u7f13\u5b58\uff1a\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u4fee\u6539\u5982\u4e0b\u53c2\u6570<\/p>\n
query_cache_type = on\u3000\u3000#\u5f00\u542f\u67e5\u8be2\u7f13\u5b58<\/p>\n
query_cache_size = 200M\u3000\u3000#\u5206\u914d\u7ed9\u67e5\u8be2\u7f13\u5b58\u7684\u603b\u5185\u5b58\uff0c\u4e00\u822c\u5efa\u8bae\u4e0d\u8d85\u8fc7256M<\/p>\n
query_cache_limit = 1M\u3000\u3000#\u9650\u5236MySQL\u5b58\u50a8\u7684\u6700\u5927\u7ed3\u679c\uff1b\u5982\u679c\u67e5\u8be2\u7684\u7ed3\u679c\u6bd4limit\u5927\uff0c\u90a3\u4e48\u5c31\u4e0d\u4f1a\u88ab\u7f13\u5b58\u3002<\/p>\n
4\u3001\u76d1\u63a7Qcache\u4f7f\u7528\u60c5\u51b5<\/p>\n
mysql> show status like 'qcache%'; \r\n+-------------------------+---------+\r\n| Variable_name | Value |\r\n+-------------------------+---------+\r\n| Qcache_free_blocks | 1 |\r\n| Qcache_free_memory | 1031832 |\r\n| Qcache_hits | 0 |\r\n| Qcache_inserts | 0 |\r\n| Qcache_lowmem_prunes | 0 |\r\n| Qcache_not_cached | 5476 |\r\n| Qcache_queries_in_cache | 0 |\r\n| Qcache_total_blocks | 1 |\r\n+-------------------------+---------+\r\n\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014<\/pre>\n\u89e3\u6790\uff1a<\/p>\n
1\u3001Qcache_free_blocks \uff1aQuery Cache\u4e2d\u76ee\u524d\u8fd8\u6709\u591a\u5c11\u5269\u4f59\u7684blocks\u3002\u5982\u679c\u8be5\u503c\u663e\u793a\u8f83\u5927\uff0c\u5219\u8bf4\u660eQuery Cache\u4e2d\u7684\u5185\u5b58\u788e\u7247\u8f83\u591a\u4e86\uff0c\u53ef\u80fd\u9700\u8981\u5bfb\u627e\u5408\u9002\u7684\u673a\u4f1a\u8fdb\u884c\u6574\u7406\u3002\u5904\u7406\u529e\u6cd5\uff1amysql> FLUSH QUERY CACHE;\u6e05\u7406\u67e5\u8be2\u7f13\u5b58\u788e\u7247\u4ee5\u63d0\u9ad8\u5185\u5b58\u4f7f\u7528\u6027\u80fd\u3002(\u8be5\u8bed\u53e5\u4e0d\u4ece\u7f13\u5b58\u4e2d\u79fb\u51fa\u4efb\u4f55\u67e5\u8be2)<\/p>\n
2\u3001Qcache_free_memory\uff1aQuery Cache \u4e2d\u76ee\u524d\u5269\u4f59\u7684\u5185\u5b58\u5927\u5c0f<\/p>\n
3\u3001Qcache_hits\uff1a\u7f13\u5b58\u547d\u4e2d\u6b21\u6570<\/p>\n
4\u3001Qcache_inserts\uff1a\u591a\u5c11\u6b21\u672a\u547d\u4e2d\u7136\u540e\u63d2\u5165<\/p>\n
Query Cache\u547d\u4e2d\u7387\u00a0= Qcache_hits \/(Qcache_hits + Qcache_inserts)<\/p><\/blockquote>\n
5\u3001Qcache_lowmem_prunes\uff1a\u591a\u5c11\u6761Query \u56e0\u4e3a\u5185\u5b58\u4e0d\u8db3\u800c\u88ab\u6e05\u9664\u51faQuery<\/p>\n
6\u3001Qcache_not_cached\uff1a\u56e0\u4e3aquery_cache_type\u7684\u8bbe\u7f6eoff\u6216\u8005\u4e0d\u80fd\u88abcache\u7684Query\u7684\u6570\u91cf<\/p>\n
7\u3001Qcache_queries_in_cache\uff1a\u5f53\u524dQuery Cache\u4e2dcache\u7684Query\u6570\u91cf<\/p>\n
8\u3001Qcache_total_blocks\uff1a\u5f53\u524dQuery Cache\u4e2d\u7684block\u6570\u91cf<\/p>\n
\u6ce8\uff1a<\/p>\n
\u547d\u4e2d\u7387\u4f4e\uff0c\u8bf4\u660e\u6ca1\u4ece\u5185\u5b58\u4e2d\u53d6\uff0c\u8fd8\u662f\u4ece\u78c1\u76d8\u53d6\uff0c\u5219\u591a\u8d70\u4e86\u4e00\u6b65\u3002\u770b\u662f\u5426sql\u8bed\u53e5\u8001\u53d8\u5316\u8fd8\u662f\u4ec0\u4e48\u95ee\u9898\uff1b<\/p>\n
Qcache_not_cached \u6570\u503c\u5927\uff0c\u5f00\u542f\u4e86\u67e5\u8be2\u7f13\u5b58\u6ca1\u6709\u7f13\u5b58\u7684\u6570\u636e\u5219\u8bf4\u660e\u8bbe\u7f6e\u7f13\u5b58\u7684\u5927\u5c0f\u592a\u5c0f\u4e86\uff0c\u597d\u591a\u65e0\u6cd5\u7f13\u5b58\u3002<\/p>\n
\u4e8c\u3001\u5b58\u50a8\u5f15\u64ce\u5c42-innodb buffer pool<\/span><\/p>\nbuffer pool\u662finnodb\u5b58\u50a8\u5f15\u64ce\u5e26\u7684\u4e00\u4e2a\u7f13\u5b58\u6c60\uff0c\u67e5\u8be2\u6570\u636e\u7684\u65f6\u5019\uff0c\u5b83\u9996\u5148\u4f1a\u4ece\u5185\u5b58\u4e2d\u67e5\u8be2\uff0c\u5982\u679c\u5185\u5b58\u4e2d\u5b58\u5728\u7684\u8bdd\uff0c\u76f4\u63a5\u8fd4\u56de\uff0c\u4ece\u800c\u63d0\u9ad8\u67e5\u8be2\u54cd\u5e94\u65f6\u95f4\u3002Buffer pool\u662f\u8bbe\u7f6e\u7684\u8d8a\u5927\u8d8a\u597d\uff0c\u4e00\u822c\u8bbe\u7f6e\u4e3a\u670d\u52a1\u5668\u7269\u7406\u5185\u5b58\u768470%\u3002<\/p>\n
1\u3001Innodb_buffer_pool\u53c2\u6570<\/p>\n
mysql> show variables like '%innodb_buffer_pool%';\r\n+-------------------------------------+----------------+\r\n| Variable_name | Value |\r\n+-------------------------------------+----------------+\r\n| innodb_buffer_pool_chunk_size | 134217728 |\r\n| innodb_buffer_pool_dump_at_shutdown | ON |\r\n| innodb_buffer_pool_dump_now | OFF |\r\n| innodb_buffer_pool_dump_pct | 25 |\r\n| innodb_buffer_pool_filename | ib_buffer_pool |\r\n| innodb_buffer_pool_instances | 1 |\r\n| innodb_buffer_pool_load_abort | OFF |\r\n| innodb_buffer_pool_load_at_startup | ON |\r\n| innodb_buffer_pool_load_now | OFF |\r\n| innodb_buffer_pool_size | 134217728 |\r\n+-------------------------------------+----------------+\r\n\u53c2\u6570\u89e3\u6790\uff1a<\/pre>\n\uff081\uff09\u3001innodb_buffer_pool_size\uff1aInnodb_buffer_pool\u7684\u5927\u5c0f<\/p>\n
\uff082\uff09\u3001innodb_buffer_pool_filename \uff1a\u70ed\u6570\u636e\u6587\u4ef6\u540d\u79f0<\/p>\n
\uff083\uff09\u3001innodb_buffer_pool_dump_now\uff1a\u9ed8\u8ba4\u662fOFF\uff1b\u5982\u679c\u5f00\u542f\u5219\u7acb\u523bInnoDB\u5c06InnoDB\u7f13\u51b2\u6c60\u4e2d\u7684\u70ed\u6570\u636e\u4fdd\u5b58\u5230\u672c\u5730\u786c\u76d8\u3002(\u7ec4\u5408innodb_buffer_pool_load_now\u4f7f\u7528)<\/p>\n
\uff084\uff09\u3001innodb_buffer_pool_load_now\uff1a\u9ed8\u8ba4\u662fOFF\uff1b\u5982\u679c\u5f00\u542f\u5219\u7acb\u523b\u901a\u8fc7\u52a0\u8f7d\u6570\u636e\u9875\u9884\u70edinnodb\u7f13\u51b2\u6c60\u3002<\/p>\n
\uff085\uff09\u3001innodb_buffer_pool_load_at_startup\uff1a\u9ed8\u8ba4\u662fOFF\uff1b\u5982\u679c\u5f00\u542f\u8be5\u53c2\u6570\uff0c\u542f\u52a8MySQL\u670d\u52a1\u65f6\uff0cMySQL\u5c06\u672c\u5730\u70ed\u6570\u636e\u52a0\u8f7d\u5230InnoDB\u7f13\u51b2\u6c60\u4e2d\u3002<\/p>\n
\uff086\uff09\u3001innodb_buffer_pool_dump_at_shutdown\uff1a\u9ed8\u8ba4\u662fOFF\uff1b\u5982\u679c\u5f00\u542f\u8be5\u53c2\u6570\uff0c\u505c\u6b62mysq\u670d\u52a1\u65f6\u662f\u5426\u81ea\u52a8\u4fdd\u5b58InnoDB buffer pool\u4e2d\u70ed\u6570\u636e\u3002<\/p>\n
Q\uff1a\u5982\u4f55\u5feb\u901f\u91cd\u542f\u4f7f\u7528\u6570\u636e\u5e93—Preloading the InnoDB Buffer Pool for Faster Restart<\/p>\n
A\uff1a<\/p>\n
\u5f00\u542finnodb_buffer_pool_load_at_startup\u3001innodb_buffer_pool_dump_at_shutdown\u53c2\u6570\u3002\u91cd\u542f\u6570\u636e\u5e93\uff0c\u505c\u6b62\u65f6\u4fdd\u5b58\u70ed\u6570\u636e\uff0c\u542f\u52a8\u65f6\u52a0\u8f7d\u70ed\u6570\u636e\u5230buffer pool\u3002<\/p>\n
<\/p><\/blockquote>\n
2\u3001Innodb_buffer_pool\u72b6\u6001<\/p>\n
mysql> show status like '%innodb_buffer_pool%';\r\n+---------------------------------------+--------------------------------------------------+\r\n| Variable_name | Value |\r\n+---------------------------------------+--------------------------------------------------+\r\n| Innodb_buffer_pool_dump_status | Dumping of buffer pool not started |\r\n| Innodb_buffer_pool_load_status | Buffer pool(s) load completed at 170430 7:07:12 |\r\n| Innodb_buffer_pool_resize_status | |\r\n| Innodb_buffer_pool_pages_data | 241 |\r\n| Innodb_buffer_pool_bytes_data | 3948544 |\r\n| Innodb_buffer_pool_pages_dirty | 0 |\r\n| Innodb_buffer_pool_bytes_dirty | 0 |\r\n| Innodb_buffer_pool_pages_flushed | 176 |\r\n| Innodb_buffer_pool_pages_free | 7951 |\r\n| Innodb_buffer_pool_pages_misc | 0 |\r\n| Innodb_buffer_pool_pages_total | 8192 |\r\n| Innodb_buffer_pool_read_ahead_rnd | 0 |\r\n| Innodb_buffer_pool_read_ahead | 0 |\r\n| Innodb_buffer_pool_read_ahead_evicted | 0 |\r\n| Innodb_buffer_pool_read_requests<\/span> | 53710 | #\u903b\u8f91\u8bfb(\u7f13\u5b58\u8bfb)\u8bf7\u6c42\u6b21\u6570\uff0c\u4e5f\u662f\u8bfb\u7684\u8bf7\u6c42\u6b21\u6570<\/span>\r\n| Innodb_buffer_pool_reads<\/span> | 201 | #\u4ece\u7269\u7406\u78c1\u76d8\u4e2d\u83b7\u53d6\u5230\u6570\u636e\u7684\u6b21\u6570<\/span>\r\n| Innodb_buffer_pool_wait_free | 0 |\r\n| Innodb_buffer_pool_write_requests | 45242 |\r\n+---------------------------------------+--------------------------------------------------+\r\n<\/pre>\n\u6ce8\uff1a<\/p>\n
\u903b\u8f91\u8bfb\u5c31\u662f\u4ecebuffer pool\u7684\u8bfb\uff0c\u4f46\u662f\u4e5f\u4f1a\u5305\u542b\u7269\u7406\u8bfb\uff0c\u56e0\u4e3a\u7269\u7406\u8bfb\u4e5f\u8981\u662f\u5148\u5c06\u4ecedisk\u4e2d\u8bfb\u53d6\u7684\u6570\u636e\u653e\u5165buffer pool\u91cc\uff0c\u7136\u540e\u518d\u8fdb\u884c\u903b\u8f91\u8bfb\u3002\u6240\u4ee5\uff1a\u603b\u7684\u903b\u8f91\u8bfb\u4e5f\u5c31\u662f\u8bfb\u7684\u8bf7\u6c42\u6b21\u6570\u3002<\/span><\/p>\n\u9488\u5bf9innodb pool\uff0c\u8bfb\u7684\u7f13\u5b58\u547d\u4e2d\u7387=(Innodb_buffer_pool_read_requests- Innodb_buffer_pool_reads)\/ Innodb_buffer_pool_read_requests<\/p>\n
<\/div><\/div>\n
<\/p>\n
\u806a\u660e\u7684\u540c\u5b66\u6709\u5982\u4e0b\u7591\u95ee
\nmysql\u867d\u7136\u4f1a\u628a\u6570\u636e\u90fd\u5b58\u653e\u5230\u786c\u76d8\u4e0a\uff0c\u4f46\u6bcf\u6b21\u8bfb\u53d6\u6570\u636e\u90fd\u4f1a\u653e\u5165buffer bool\u7f13\u5b58\u554a\uff08\u5e76\u4e14\u8fd8\u6709Query Cache\u7f13\u5b58sql\u7684\u7ed3\u679c\uff09\uff0c\u540e\u7eed\u7684\u8bfb\u53d6\u4e0d\u4e5f\u662f\u4ece\u5185\u5b58\u8bfb\u53d6\u6570\u636e\u5417\uff1f\uff1f\uff1f\u4e3a\u4f55\u8fd8\u9700\u8981redis\u3001memcache\u6765\u4f5c\u4e3a\u6570\u636e\u5e93\u7684\u8bfb\u7f13\u5b58\u5462\uff1f<\/p>\n
<\/p>\n
<\/div>
\n\u6ca1\u9519\uff0c\u5982\u679c\u6570\u636e\u91cf\u6bd4\u8f83\u5c0f\u7684\u60c5\u51b5\u4e0b\uff0cmysql\u7684buffer pool\u5c31\u8db3\u591f\u4e86
\n\u4f46\u5982\u679c\u6570\u636e\u91cf\u7684\u5927\u7684\u60c5\u51b5\u4e0b\uff0cbuffer pool\u6839\u672c\u6551\u4e0d\u4e86\u4f60\u3001\u5373\u4fbf\u5e26\u6709buffer pool\u8fd9\u79cd\u8fd0\u884c\u673a\u5236\uff0cmysql\u8fd9\u79cd\u7ed3\u6784\u5316\u6570\u636e\u5e93\u7684\u6027\u80fd\u4e5f\u4f1a\u76f4\u7ebf\u4e0b\u964d\uff0c\u4e3a\u4ec0\u4e48\u5462\uff1f\u770b\u4e0b\u4e00\u5c0f\u8282<\/p>\n\u8865\u5145\u6982\u5ff5\uff1aMySQL\u7f13\u5b58\u4e4bQcache\u4e0ebuffer pool\u5bf9\u6bd4<\/p>\n
\u4e8c\u3001\u7ed3\u6784\u5316\u6570\u636e\u5e93\u7684\u6027\u80fd\u4e3a\u4f55\u4f1a\u4e0b\u964d<\/h1>\n
1\u3001\u6570\u636e\u91cf\u5c0f\uff0cbuffer pool\u8db3\u591f\u5bb9\u7eb3\uff0c\u5219\u4e0d\u9700\u8981\u5f15\u5165redis\u7f13\u5b58
\n\u4ee5Mysql\u4e3a\u4f8b\uff0c\u6211\u4eec\u77e5\u9053\uff0c\u4e3a\u4e86\u8c03\u548cCPU\u548c\u78c1\u76d8\u7684\u901f\u5ea6\u4e0d\u5339\u914d\uff0cMySQL \u7528buffer pool\u6765\u52a0\u8f7d\u78c1\u76d8\u6570\u636e\u5230\u4e00\u6bb5\u8fde\u7eed\u7684\u5185\u5b58\u4e2d\uff0c\u4f9b\u8bfb\u5199\u4f7f\u7528\u3002
\n\u5982\u679c\u6570\u636e\u91cf\u6bd4\u8f83\u5c0f\uff0c\u7f13\u51b2\u6c60\u8bbe\u7f6e\u7684\u5927\u5c0f\u80fd\u591f\u653e\u4e0b\u6240\u6709\u6570\u636e\u9875\uff0c\u90a3mysql\u64cd\u4f5c\u57fa\u672c\u4e0d\u4f1a\u4ea7\u751f\u8bfbIO\uff0c\u800c\u5173\u4e8e\u5199IO\u56e0\u4e3a\u662f\u5f02\u6b65\u3001\u5185\u5b58\u76f8\u5bf9\u6570\u636e\u91cf\u6765\u8bf4\u53c8\u5f88\u5145\u8db3\uff0c\u6240\u4ee5\u5199io\u4e5f\u4e0d\u4f1a\u6709\u6027\u80fd\u95ee\u9898\uff0c\u6b64\u65f6\u5c31\u6ca1\u6709\u5f15\u5165redis\u7f13\u5b58\u7684\u5fc5\u8981<\/p>\n
====<\/p>\n
2\u3001\u4f46\u73b0\u5b9e\u5f80\u5f80\u662f\u6b8b\u9177\u7684\uff0c\u4f46\u51e1\u4e0a\u70b9\u89c4\u6a21\u7684\u5e94\u7528\u7684\u6570\u636e\u91cf\u90fd\u4f1a\u5f88\u5927\uff0c\u5927\u8fc7\u4f60\u5185\u5b58\u5927\u5c0f\u4e5f\u90fd\u5f88\u5e38\u89c1\uff0c\u800cbuffer pool\u8bbe\u7f6e\u7684\u518d\u5927\u4e5f\u5927\u4e0d\u8fc7\u4f60\u7684\u5355\u673a\u5185\u5b58\uff08\u8bbe\u7f6e\u4e3a\u7269\u7406\u5185\u5b58\u768470%\u5df2\u7ecf\u7b97\u5f88\u9ad8\u4e86\uff09\uff0c\u6b64\u65f6buffer pool\u6839\u672c\u4e0d\u53ef\u80fd\u5bb9\u7eb3\u6240\u6709\u6570\u636e\u9875\uff0c\u4f60\u8bf7\u6c42\u7684\u6570\u636e\u9875\u6ca1\u6709\u5728buffer pool\u4e2d\u5c31\u5341\u5206\u5e38\u89c1\u4e86
\n\u4ee5\u6b64\u4e3a\u80cc\u666f\uff0c\u5f15\u51fa3\u4e2a\u95ee\u9898,<\/p>\n
\n- \u95ee\u98981\uff1a\u5982\u679c\u4f60\u8bf7\u6c42\u7684\u6570\u636e\u9875\u6ca1\u6709\u5728buffer pool\uff0cmysql\u4f1a\u600e\u4e48\u529e\u5462
\nmysql\u7684\u8bfb\u5199\u64cd\u4f5c\u8981\u6c42\u6570\u636e\u9875\u5fc5\u987b\u5728buffer pool\u4e2d\u624d\u80fd\u8fdb\u884c\uff0c\u5982\u679c\u6570\u636e\u9875\u672a\u5728buffer pool\u91cc\uff0c\u90a3mysql\u5c31\u5fc5\u987b\u53bb\u786c\u76d8\u91cc\u8bfb\u53d6\uff0c\u7136\u540e\u7b49\u5f85io\u64cd\u4f5c\u7ed3\u675f\uff0c\u78c1\u76d8\u6587\u4ef6\u88ab\u52a0\u8f7d\u5230buffer pool\u540e\uff0cmysql\u624d\u80fd\u8fdb\u884c\u540e\u7eed\u64cd\u4f5c\uff0c\u5982\u679c\u8fc7\u7a0b\u4e2d\u786c\u76d8io\u6ca1\u6709\u54cd\u5e94\uff0c\u5c31\u4f1a\u963b\u585e\uff0c\u5fc5\u987b\u7b49\u5f85io\u5b8c\u6210\u624d\u884c<\/li>\n - \u95ee\u98982\uff1a\u5982\u679c\u9047\u5230\u70ed\u70b9\u8bf7\u6c42\u4f1a\u600e\u4e48\u6837\uff1f
\n\u70ed\u70b9\u8bf7\u6c42\u6307\u7684\u662f\u5e76\u53d1\u5927\u91cf\u8bf7\u6c42\u540c\u4e00\u4e2a\u6570\u636e\u9875\uff0c\u56e0\u4e3abuffer pool\u91cc\u6ca1\u6709\u8be5\u6570\u636e\u9875\uff0c\u4e8e\u662fmysql\u5fc5\u987b\u53bb\u78c1\u76d8\u4e2d\u8bfb\u53d6\uff0c\u5982\u679c\u7b2c\u4e00\u4e2a\u8bf7\u6c42\u8be5\u6570\u636e\u9875\u7684\u6570\u636e\u5e93\u7ebf\u7a0b\u56e0\u4e3a\u786c\u76d8io\u74f6\u9888\uff0c\u8fdf\u8fdf\u6ca1\u6709\u5c06\u7269\u7406\u6570\u636e\u9875\u8bfb\u5165buffer pool, \u8fd9\u4e2a\u65f6\u95f4\u533a\u95f4\u62d6\u5f97\u8d8a\u957f\uff0c\u5219\u9020\u6210\u7b49\u5f85\u8be5\u6570\u636e\u5757\u7684\u7528\u6237\u7ebf\u7a0b\u5c31\u8d8a\u591a\u3002\u5bf9\u9ad8\u5e76\u53d1\u7684\u7cfb\u7edf\u6765\u8bf4\uff0c\u5c06\u9020\u6210\u5927\u91cf\u7684\u7b49\u5f85\uff0c\u6570\u636e\u5e93\u7684\u6027\u80fd\u968f\u5373\u6025\u5267\u4e0b\u964d<\/li>\n - \u95ee\u98983\uff1a\u5e76\u53d1\uff0c\u5927\u91cf\u8bf7\u6c42\u7684\u8bbf\u95ee\u884c\u4e3a\u88ab\u963b\u585e\uff0c\u4f1a\u9020\u6210\u4ec0\u4e48\u540e\u679c\uff1f
\n\u5bf9\u4e8e\u670d\u52a1\u6765\u8bf4\uff0c\u5927\u91cf\u8d85\u65f6\u4f1a\u4f7f\u670d\u52a1\u5668\u5904\u4e8e\u4e0d\u53ef\u7528\u7684\u72b6\u6001\u3002\u8be5\u53f0\u673a\u5668\u4f1a\u89e6\u53d1\u7194\u65ad\u3002\u7194\u65ad\u89e6\u53d1\u540e\uff0c\u8be5\u673a\u5668\u7684\u6d41\u91cf\u4f1a\u6253\u5230\u5176\u4ed6\u673a\u5668\uff0c\u5176\u4ed6\u673a\u5668\u53d1\u751f\u7c7b\u4f3c\u7684\u60c5\u51b5\u7684\u53ef\u80fd\u6027\u4f1a\u63d0\u9ad8\uff0c\u6781\u7aef\u60c5\u51b5\u4f1a\u5f15\u8d77\u6240\u6709\u670d\u52a1\u5b95\u673a\uff0c\u66f2\u7ebf\u6389\u5e95\u3002<\/li>\n<\/ul>\n\u8865\u5145\uff1a\r\n\u4e0a\u9762\u662f\u7531\u4e8e\u78c1\u76d8IO\u5bfc\u81f4\u670d\u52a1\u5f02\u5e38\u7684\u5206\u6790\u903b\u8f91\uff0c\u4e5f\u662f\u6211\u4eec\u751f\u4ea7\u4e2d\u6700\u5e38\u9047\u5230\u7684\u4e00\u79cd\u6570\u636e\u5e93\u6027\u80fd\u5f02\u5e38\u7684\u573a\u666f\u3002\r\n\u9664\u6b64\u4e4b\u5916\uff0c\u8fd8\u6709\u9501\u7ade\u4e89\u7f13\u5b58\u547d\u4e2d\u7387\u7b49\u5f02\u5e38\u573a\u666f\u4e5f\u4f1a\u5bfc\u81f4\u670d\u52a1\u5f02\u5e38\u3002<\/code><\/pre>\n\u8bf4\u5230\u8fd9\u91cc\uff0c\u4f60\u5e94\u8be5\u77e5\u9053mysql\u7684buffer pool\u5728\u6570\u636e\u91cf\u5927\u7684\u573a\u666f\u4e0b\uff0c\u6839\u672c\u6551\u4e0d\u4e86\u4f60\uff0c\u5b83\u6ca1\u529e\u6cd5\u5f88\u597d\u7684\u89e3\u51b3\u4e0a\u9762\u7684\u95ee\u9898
\n\u5373\u4fbf\u8bf4\u4f60\u4e3a\u4e86\u89e3\u51b3\u5355\u5e93\u5355\u8868\u7684\u6781\u9650\uff0c\u800c\u5f15\u5165\u4e86\u5206\u5e93\u5206\u8868\u7b49\u4f18\u5316\u7b56\u7565\uff0c\u90a3\u4e5f\u53ea\u80fd\u662f\u7f13\u89e3\uff0c\u800c\u4e0d\u4f1a\u6839\u9664<\/p>\n
\u6b64\u65f6\uff0c\u914d\u5408\u7740\u3001\u5f15\u5165\u5355\u72ec\u7684\u7f13\u5b58\u7cfb\u7edf\u5c31\u663e\u5f97\u5341\u5206\u6709\u5fc5\u8981\u4e86<\/p>\n
\u4e09\u3001\u7ec6\u8bf4\u7f13\u5b58\u7684\u7c7b\u578b<\/h1>\n
\u5355\u8bf4redis\u7684\u8bdd\uff0c\u6211\u4eec\u5728\u67b6\u6784\u4e2d\u4f1a\u7528\u5176\u4f5c\u4e3a\u6570\u636e\u5e93\u7684\u8bfb\u7f13\u5b58
\n\u4f46\u7f13\u5b58\u5176\u5b9e\u662f\u4e00\u4e2a\u5f88\u5927\u7684\u8bdd\u9898\uff0c\u9664\u4e86\u6570\u636e\u5e93\u7684\u7f13\u5b58\u4e4b\u5916\u8fd8\u6709\u5f88\u591a\u5176\u4ed6\u7f13\u5b58\uff0c\u76ee\u7684\u90fd\u53ea\u6709\u4e00\u4e2a\uff0c\u5c31\u662f\u8ba9\u7528\u6237\u80fd\u591f\u4ee5\u66f4\u5feb\u7684\u901f\u5ea6\u62ff\u5230\u60f3\u8981\u7684\u6570\u636e\u5e76\u51cf\u5c11\u540e\u7aef\u538b\u529b<\/p>\n
\u6211\u4eec\u7edf\u4e00\u5728\u8fd9\u91cc\u7f57\u5217\u4e00\u4e0b\u7f13\u5b58\u7684\u7c7b\u578b
\n\uff081\uff09\u5ba2\u6237\u7aef\u7f13\u5b58
\n\u79bb\u7528\u6237\u6700\u8fd1\u7684web\u9875\u9762\u7f13\u5b58\u3001app\u7f13\u5b58\u3002web\u9875\u9762\u56e0\u4e3a\u6280\u672f\u6210\u719f\u6240\u4ee5\u95ee\u9898\u4e0d\u662f\u592a\u591a\uff0c\u4f46app\u56e0\u4e3a\u8bbe\u5907\u7684\u9650\u5236\uff0c\u5728\u4f7f\u7528\u7f13\u5b58\u65f6\u8981\u591a\u52a0\u6ce8\u610f\u3002<\/p>\n
\u4e4b\u524d\u7ecf\u5386\u7684\u67d0\u4e2a\u4e1a\u52a1\uff0c\u56e0\u4e3a\u5ba2\u6237\u7aef\u7f13\u5b58\u51fa\u73b0\u95ee\u9898\uff0c\u53d1\u751f\u4e24\u6b21\u8bf7\u6c42\u8ba2\u5355\u53f7\u4e32\u5355\uff0c\u5bfc\u81f4\u4e1a\u52a1\u5f02\u5e38\u3002\u4e32\u5355\u5450\uff0c\u731c\u662f\u56e0\u4e3a\u7f13\u5b58\u53d1\u751f\u4e86\u6df7\u4e71\uff0c\u81f3\u4eca\u6bd4\u8f83\u5947\u602a\u4f1a\u53d1\u751f\u8fd9\u79cd\u60c5\u51b5\uff0c\u9700\u8981\u5bf9\u5ba2\u6237\u7aef\u76f8\u5173\u52a0\u6df1\u8ba4\u8bc6\u4e86\u3002<\/p>\n
\uff082\uff09\u5355\u673a\u7f13\u5b58
\nCPU\u7f13\u5b58[2]\u3002\u4e3a\u4e86\u8c03\u548cCPU\u548c\u5185\u5b58\u4e4b\u95f4\u5de8\u5927\u7684\u901f\u5ea6\u5dee\u5f02\uff0c\u8bbe\u7f6e\u4e86L1\/L2\/L3\u4e09\u7ea7\u7f13\u5b58\uff0c\u79bbCPU\u8d8a\u8fd1\uff0c\u901f\u5ea6\u8d8a\u5feb\u3002\u77e5\u4e4e\u9996\u9875\u5df2\u8bfb\u8fc7\u6ee4\u7684\u7f13\u5b58\u67b6\u6784\uff0c\u5176\u7075\u611f\u5c31\u662f\u6765\u6e90\u4e8e\u6b64\u3002<\/p>\n
\uff083\uff09\u6570\u636e\u5e93\u672c\u8eab\u81ea\u5e26\u7684\u7f13\u5b58\u8bbe\u7f6e
\nQuery cache\u5373\u5c06\u67e5\u8be2\u7684\u7ed3\u679c\u7f13\u5b58\u8d77\u6765\uff0c\u5f00\u542f\u540e\u751f\u6548\u3002\u5176\u53ef\u4ee5\u964d\u4f4e\u67e5\u8be2\u7684\u6267\u884c\u65f6\u95f4\uff0c\u5bf9\u9700\u8981\u6d88\u8017\u5927\u91cf\u8d44\u6e90\u7684\u67e5\u8be2\u6548\u679c\u660e\u663e\u3002
\n
<\/div><\/p>\n\uff084\uff09\u5206\u5e03\u5f0f\u7f13\u5b58\uff08\u5355\u72ec\u7684\u7f13\u5b58\u7cfb\u7edf\uff0c\u7528\u4e8e\u7f13\u5b58\u6570\u636e\u5e93\u7684\u8bfb\uff09
\nmemcached\u3002[5] memcached\u662f\u4e00\u4e2a\u9ad8\u6548\u7684\u5206\u5e03\u5f0f\u5185\u5b58cache\uff0c\u642d\u5efa\u4e0e\u64cd\u4f5c\u4f7f\u7528\u90fd\u6bd4\u8f83\u7b80\u5355\uff0c\u6574\u4e2a\u7f13\u5b58\u90fd\u662f\u57fa\u4e8e\u5185\u5b58\u7684\uff0c\u56e0\u6b64\u54cd\u5e94\u65f6\u95f4\u5f88\u5feb\uff0c\u4f46\u662f\u6ca1\u6709\u6301\u4e45\u5316\u7684\u80fd\u529b\u3002<\/p>\n
Redis\u3002 Redis\u4ee5\u4f18\u79c0\u7684\u6027\u80fd\u548c\u4e30\u5bcc\u7684\u6570\u636e\u7ed3\u6784\uff0c\u4ee5\u53ca\u7a33\u5b9a\u6027\u548c\u6570\u636e\u4e00\u81f4\u6027\u7684\u652f\u6301\uff0c\u88ab\u4e1a\u5185\u8d8a\u6765\u8d8a\u666e\u904d\u7684\u4f7f\u7528\u3002
\n\u54ea\u4e9b\u516c\u53f8\u5728\u7528redis\u4f5c\u7f13\u5b58\uff1f\u5fae\u535a\u7b97\u662fredis\u7684\u91cd\u5ea6\u7528\u6237\uff0c\u76f8\u4f20redis\u7684\u65b0\u7279\u6027\u597d\u591a\u90fd\u662f\u4e3a\u4e86\u5fae\u535a\u5b9a\u5236\u7684<\/p>\n
Twitter\r\nGitHub\r\nWeibo\r\nStackOverflow\r\n\u3002\u3002\u3002\u3002\u3002\u3002<\/code><\/pre>\n\uff085\uff09\u7f51\u9875\u7f13\u5b58-\u300bCDN
\nCDN\u670d\u52a1\u5668\u662f\u5efa\u7acb\u5728\u7f51\u7edc\u4e0a\u7684\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\u3002\u5e03\u7f6e\u5728\u5404\u5730\u7684\u8fb9\u7f18\u670d\u52a1\u5668\uff0c\u7528\u6237\u53ef\u4ee5\u7ecf\u8fc7\u4e2d\u592e\u6e20\u9053\u7684\u8d1f\u8f7d\u5e73\u8861\u3001\u5185\u5bb9\u5206\u53d1\u3001\u8c03\u5ea6\u7b49\u529f\u7528\u6a21\u5757\u83b7\u53d6\u9644\u8fd1\u6240\u9700\u7684\u5185\u5bb9\uff0c\u51cf\u5c11\u7f51\u7edc\u62e5\u585e\uff0c\u63d0\u9ad8\u54cd\u5e94\u901f\u5ea6\u548c\u547d\u4e2d\u7387\u3002<\/p>\n
Nginx\u57fa\u4e8eProxy Store\u5b9e\u73b0\uff0c\u4f7f\u7528Nginx\u7684http_proxy\u6a21\u5757\u53ef\u4ee5\u5b9e\u73b0\u7c7b\u4f3c\u4e8esquid\u7684\u7f13\u5b58\u529f\u80fd\u3002\u5f53\u542f\u7528\u7f13\u5b58\u65f6\uff0cNginx\u4f1a\u5c06\u76f8\u5e94\u6570\u636e\u4fdd\u5b58\u5728\u78c1\u76d8\u7f13\u5b58\u4e2d\uff0c\u53ea\u8981\u7f13\u5b58\u6570\u636e\u5c1a\u672a\u8fc7\u671f\uff0c\u5c31\u4f1a\u4f7f\u7528\u7f13\u5b58\u6570\u636e\u6765\u54cd\u5e94\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u3002
\n
<\/div>
\n\u8865\u5145\u4e0a\u56fe\uff1aEhcache\u4e0eGuava cache\u662fjava\u7684\u4e24\u4e2a\u7f13\u5b58\u6846\u67b6<\/p>\n\u56db\u3001redis\u4e3a\u4ec0\u4e48\u5feb<\/h1>\n
Redis\u662f\u4e00\u79cd\u57fa\u4e8e\u5355\u7ebf\u7a0b\u6a21\u578b\u7684\u6570\u636e\u5e93\uff0c\u5176\u8bbe\u8ba1\u4e3b\u8981\u662f\u4e3a\u4e86\u5728\u5e76\u53d1\u548c\u591a\u5ba2\u6237\u7aef\u73af\u5883\u4e2d\uff0c\u901a\u8fc7\u987a\u5e8f\u5904\u7406\u547d\u4ee4\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u4e00\u81f4\u6027\u5e76\u907f\u514d\u7ade\u6001\u6761\u4ef6\u3002\u6bcf\u5f53Redis\u5904\u7406\u4e00\u4e2a\u547d\u4ee4\u65f6\uff0c\u8fd9\u4e2a\u547d\u4ee4\u5728\u5b8c\u6210\u4e4b\u524d\uff0c\u4efb\u4f55\u5176\u4ed6\u547d\u4ee4\u90fd\u4e0d\u4f1a\u88ab\u6267\u884c\u3002\u8fd9\u6837\u5c31\u4fdd\u8bc1\u4e86Redis\u7684\u64cd\u4f5c\u662f\u539f\u5b50\u7684\uff0c\u4e5f\u5c31\u907f\u514d\u4e86\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d\u5e38\u89c1\u7684\u6570\u636e\u7ade\u6001\u51b2\u7a81\u95ee\u9898\u3002
\n\u7136\u800c\uff0c\u5373\u4fbf\u662f\u5728\u5355\u7ebf\u7a0b\u6a21\u578b\u4e0b\uff0cRedis\u4e5f\u80fd\u591f\u901a\u8fc7\u4f18\u5316\u5185\u5b58\u7ba1\u7406\u3001\u6570\u636e\u7ed3\u6784\u3001\u91c7\u7528epoll\u6a21\u578b\u5904\u7406io\uff0c\u8fbe\u5230\u4e86\u60ca\u4eba\u7684\u901f\u5ea6\u548c\u6548\u7387\u3002<\/p>\n
\u7efc\u4e0a\uff0c\u603b\u7ed3redis\u5feb\u7684\u539f\u56e0\u4e3b\u8981\u67093\u70b9\uff1a<\/p>\n
\n- 1\u3001\u6570\u636e\u7ed3\u6784\u8bbe\u8ba1\u7cbe\u826f\uff0c\u5b58\u50a8\u901f\u5ea6\u5feb<\/li>\n
- 2\u3001\u5355\u7ebf\u7a0b+io\u591a\u8def\u590d\u7528\uff0c\u5355\u7ebf\u7a0b\u907f\u514d\u4e86\u7ebf\u7a0b\u5207\u6362\u548c\u7ade\u6001\/\u9501\u4ea7\u751f\u7684\u6d88\u8017\uff0cio\u591a\u8def\u590d\u7528\u4f18\u5316\u4e86\u5355\u7ebf\u7a0b\u4e0b\u7684io\u963b\u585e\u95ee\u9898<\/li>\n
- 3\u3001\u9ad8\u6548\u7684\u5185\u5b58\u7ba1\u7406<\/li>\n<\/ul>\n
4.1 \u6570\u636e\u7ed3\u6784\u8bbe\u8ba1<\/h2>\n
redis\u7684\u5e95\u5c42\u662f\u7528c\u8bed\u8a00\u6765\u7f16\u5199\u7684\uff0c\u4f46\u662f\uff0c\u6570\u636e\u7ed3\u6784\u786e\u6ca1\u6709\u76f4\u63a5\u5957\u7528C\u7684\u7ed3\u6784\uff0c\u800c\u662f\u6839\u636eredis\u7684\u5b9a\u4f4d\u81ea\u5efa\u4e86\u4e00\u5957\u6570\u636e\u7ed3\u6784\uff0c
\n\u8fd9\u4e9b\u6570\u636e\u7ed3\u6784\u7684\u6838\u5fc3\u8bbe\u8ba1\u601d\u60f3\u603b\u7ed3\u5c31\u662f\u4e00\u53e5\u8bdd\uff1a\u7528\u7a7a\u95f4\u6362\u65f6\u95f4\uff0c\u7528\u727a\u7272\u5b58\u50a8\u7a7a\u95f4\u548c\u5fae\u5c0f\u7684\u8ba1\u7b97\u4ee3\u4ef7\uff0c\u6765\u6362\u53d6\u6570\u636e\u7684\u5feb\u901f\u64cd\u4f5c<\/p>\n
4.2 \u5355\u7ebf\u7a0b+io\u591a\u8def\u590d\u7528<\/h2>\n4.2.1 \u5355\u7ebf\u7a0b<\/h3>\n
redis6.x\u4e4b\u524d\uff0c\u4e00\u76f4\u5728\u8bf4\u5355\u7ebf\u7a0b\u5982\u4f55\u5982\u4e4b\u4f55\u7684\u597d\u3002\uff08redis6.x\u4e4b\u540e\u8bde\u751f\u4e86\u591a\u7ebf\u7a0b\u6a21\u5f0f\uff0c\u4f46\u8d1f\u8f7d\u5904\u7406\u7528\u6237\u8bf7\u6c42\u7684\u8fd8\u662f\u5355\u7ebf\u7a0b\uff09
\n\u5173\u4e8e\u65b0\u7248\u672c\u7684\u591a\u7ebf\u7a0b\u6a21\u578b\u5728\u540e\u9762\u5c0f\u8282\u5355\u72ec\u8bf4\uff0c\u8fd9\u91cc\u5148\u8bf4\u5355\u7ebf\u7a0b\u3002
\n\u6240\u8c13\u5355\u7ebf\u7a0b\u662f\u6307\u5bf9\u6570\u636e\u7684\u6240\u6709\u64cd\u4f5c\u90fd\u662f\u7531\u4e00\u4e2a\u7ebf\u7a0b\u6309\u987a\u5e8f\u6328\u4e2a\u6267\u884c\u7684\uff0c\u4f7f\u7528\u5355\u7ebf\u7a0b\u53ef\u4ee5\uff1a<\/p>\n
\n- 1\u3001\u51cf\u5c11\u5207\u6362\uff1a
\n\u907f\u514d\u4e86\u4e0d\u5fc5\u8981\u7684\u4e0a\u4e0b\u6587\u5207\u6362\u548c\u7ade\u4e89\u6761\u4ef6\uff0c\u4e5f\u4e0d\u5b58\u5728\u591a\u8fdb\u7a0b\u6216\u8005\u591a\u7ebf\u7a0b\u5bfc\u81f4\u7684\u5207\u6362\u800c\u6d88\u8017CPU\uff1b<\/li>\n - 2\u3001\u6ca1\u6709\u9501\u7684\u5f00\u9500
\n\u4e0d\u7528\u53bb\u8003\u8651\u5404\u79cd\u9501\u7684\u95ee\u9898\uff0c\u4e0d\u5b58\u5728\u52a0\u9501\u91ca\u653e\u9501\u64cd\u4f5c\uff0c\u6ca1\u6709\u56e0\u4e3a\u53ef\u80fd\u51fa\u73b0\u6b7b\u9501\u800c\u5bfc\u81f4\u7684\u6027\u80fd\u6d88\u8017\u3002<\/li>\n<\/ul>\n\u7136\u800c\uff0c\u4f7f\u7528\u4e86\u5355\u7ebf\u7a0b\u7684\u5904\u7406\u65b9\u5f0f\uff0c\u5c31\u610f\u5473\u7740\u5230\u8fbe\u670d\u52a1\u7aef\u7684\u8bf7\u6c42\u4e0d\u53ef\u80fd\u88ab\u7acb\u5373\u5904\u7406\u3002<\/p>\n
\u90a3\u4e48\u600e\u4e48\u6765\u4fdd\u8bc1\u5355\u7ebf\u7a0b\u7684\u8d44\u6e90\u5229\u7528\u7387\u548c\u5904\u7406\u6548\u7387\u5462\uff1f\u7b54\u6848\u5c31\u662fepoll\u7f51\u7edcIO\u6a21\u578b\u7684\u4f7f\u7528\uff0c\u8be5\u6a21\u578b\u540c\u6837\u4e5f\u662fnginx\u9ad8\u5e76\u53d1\u7684\u6838\u5fc3<\/p>\n
4.2.2 IO\u591a\u8def\u590d\u7528\u548c\u4e8b\u4ef6\u9a71\u52a8<\/h3>\n
Redis\u670d\u52a1\u7aef\uff0c\u4ece\u6574\u4f53\u4e0a\u6765\u770b\uff0c\u5176\u5b9e\u662f\u4e00\u4e2a\u4e8b\u4ef6\u9a71\u52a8\u7684\u7a0b\u5e8f\uff08\u6240\u6709\u7684\u64cd\u4f5c\u90fd\u4ee5\u4e8b\u4ef6\u7684\u65b9\u5f0f\u6765\u8fdb\u884c\uff09<\/p>\n
1\u3001\u4ec0\u4e48\u662f\u4e8b\u4ef6\uff1f\r\n\u4e8b\u4ef6\uff0c\u5c31\u662f\u4e00\u79cd\u63cf\u8ff0\u67d0\u4e8b\u5df2\u7ecf\u53d1\u751f\u7684\u4fe1\u53f7\u3002\u5b83\u53ef\u4ee5\u662f\u7528\u6237\u7684\u52a8\u4f5c\uff0c\u4f8b\u5982\u9f20\u6807\u7684\u70b9\u51fb\u3001\u952e\u76d8\u7684\u6309\u538b\uff0c\r\n\u4e5f\u53ef\u4ee5\u662f\u7f51\u7edc\u6d88\u606f\u7684\u63a5\u6536\u3001\u7cfb\u7edf\u72b6\u6001\u7684\u53d8\u5316\uff0c\u751a\u81f3\u662f\u5b9a\u65f6\u5668\u7684\u5230\u65f6\u3002\r\n\r\n2\u3001\u4ec0\u4e48\u662f\u9a71\u52a8\uff1f\r\n\u9a71\u52a8\uff0c\u662f\u4e00\u79cd\u673a\u5236\uff0c\u5f53\u63a5\u6536\u5230\u67d0\u79cd\u4fe1\u53f7\u6216\u8005\u6ee1\u8db3\u67d0\u79cd\u6761\u4ef6\u65f6\uff0c\u4f7f\u5f97\u7cfb\u7edf\u5f00\u59cb\u8fd0\u884c\u6216\u8005\u8fd0\u884c\u7279\u5b9a\u7684\u7a0b\u5e8f\u3002\r\n\u5e38\u89c1\u7684\u9a71\u52a8\u65b9\u5f0f\u6709\uff1a\u65f6\u95f4\u9a71\u52a8\uff08\u4f8b\u5982\u95f9\u949f\u5230\u65f6\uff09\u3001\u6761\u4ef6\u9a71\u52a8\uff08\u4f8b\u5982\u6e29\u5ea6\u8fbe\u5230\u9608\u503c\uff09\u3001\u6570\u636e\u9a71\u52a8\uff08\u4f8b\u5982\u65b0\u90ae\u4ef6\u5230\u8fbe\u65f6\u63d0\u793a\uff09\u7b49\u3002\r\n\r\n3\u3001\u4ec0\u4e48\u662f\u4e8b\u4ef6\u9a71\u52a8\uff1f\r\n\u4e8b\u4ef6\u9a71\u52a8\uff0c\u662f\u4e00\u79cd\u7f16\u7a0b\u65b9\u5f0f\uff0c\u5b83\u7684\u8fd0\u884c\u6d41\u7a0b\u5e76\u4e0d\u662f\u9884\u5148\u8bbe\u5b9a\uff0c\u800c\u662f\u7531\u7528\u6237\u4ea4\u4e92\u6216\u8005\u7279\u5b9a\u4e8b\u4ef6\u6765\u51b3\u5b9a\u7684\u3002\r\n\u5e38\u89c1\u7684\u4e00\u4e9b\u7cfb\u7edf\uff0c\u5982\u684c\u9762\u5e94\u7528\u3001\u7f51\u9875\u5e94\u7528\uff0c\u90fd\u662f\u91c7\u7528\u4e8b\u4ef6\u9a71\u52a8\u65b9\u5f0f\u3002\r\n\r\n\u4e3e\u4e2a\u4f8b\u5b50\r\n\u6bd4\u5982\u4f60\u4f7f\u7528\u7684\u7535\u5b50\u90ae\u4ef6\u5ba2\u6237\u7aef\uff08\u4f8b\u5982Outlook\u6216\u8005Gmail\u7b49\uff09\u3002\r\n\u5f53\u4f60\u6536\u5230\u4e00\u5c01\u65b0\u7684\u90ae\u4ef6\u65f6\uff0c\u90ae\u4ef6\u5ba2\u6237\u7aef\u4f1a\u4e3a\u4f60\u63d0\u9192\uff0c\u8fd9\u4e2a\u63d0\u9192\uff08\u53ef\u4ee5\u662f\u58f0\u97f3\u3001\u56fe\u6807\u95ea\u52a8\u7b49\u7b49\uff09\u5c31\u662f\u4e00\u4e2a\u4e8b\u4ef6\u3002\r\n\u90ae\u4ef6\u5ba2\u6237\u7aef\u5728\u6536\u5230\u8fd9\u4e2a\u201c\u65b0\u90ae\u4ef6\u5230\u8fbe\u201d\u7684\u4e8b\u4ef6\u540e\uff0c\u6839\u636e\u8fd9\u4e2a\u4e8b\u4ef6\u91c7\u53d6\u4e86\u201c\u63d0\u9192\u7528\u6237\u201d\u7684\u52a8\u4f5c\uff0c\u8fd9\u5c31\u662f\u9a71\u52a8\u3002\r\n\u56e0\u6b64\uff0c\u6211\u4eec\u8bf4\u8fd9\u79cd\u90ae\u4ef6\u5ba2\u6237\u7aef\u662f\u4e8b\u4ef6\u9a71\u52a8\u7684\u3002\r\n\r\n4\u3001\u603b\u7ed3\r\n\u4e8b\u4ef6\u9a71\u52a8\u5c31\u662f\u7a0b\u5e8f\u7b49\u5f85\u4e8b\u4ef6\u53d1\u751f\uff0c\u7136\u540e\u54cd\u5e94\u4e8b\u4ef6\uff0c\u6267\u884c\u76f8\u5e94\u7684\u4ee3\u7801<\/code><\/pre>\n<\/div><\/p>\n\u5982\u56fe\u6240\u793a\uff0cRedis\u7684\u4e8b\u4ef6\u9a71\u52a8\u67b6\u6784\u7531\u56db\u4e2a\u90e8\u5206\u7ec4\u6210\uff0c\u591a\u4e2a\u8bf7\u6c42\u5230\u8fbe Redis \u670d\u52a1\u5668\u65f6\u7684\u5904\u7406\u6d41\u7a0b\uff1a<\/p>\n
\n- 1\u3001\u5957\u63a5\u5b57\uff08Socket\uff09\uff1a\u5f53\u4e00\u4e2a\u5ba2\u6237\u7aef\u5c1d\u8bd5\u8fde\u63a5\u5230 Redis \u670d\u52a1\u5668\u65f6\uff0c\u670d\u52a1\u5668\u4f1a\u4e3a\u8fd9\u4e2a\u8fde\u63a5\u521b\u5efa\u4e00\u4e2a\u5957\u63a5\u5b57\uff08socket\uff09\u3002<\/li>\n
- 2\u3001IO\u591a\u8def\u590d\u7528\u6a21\u578b\uff1a\u901a\u8fc7 IO\u591a\u8def\u590d\u7528\u6a21\u578b\uff0cRedis \u80fd\u591f\u7528\u5355\u4e00\u7684\u7ebf\u7a0b\u6765\u76d1\u542c\u548c\u7ba1\u7406\u591a\u4e2a\u5957\u63a5\u5b57\u3002\u8fd9\u6837\uff0c\u5f53\u591a\u4e2a\u5957\u63a5\u5b57\u4e0a\u6709\u4e8b\u4ef6\u53d1\u751f\u65f6\uff0cIO\u591a\u8def\u590d\u7528\u6a21\u578b\u80fd\u5c06\u54ea\u4e2a\u5957\u63a5\u5b57\u5df2\u7ecf\u51c6\u5907\u597d\u8fdb\u884c\u8bfb\/\u5199\u64cd\u4f5c\u7684\u4fe1\u606f\u901a\u77e5\u7ed9\u6587\u4ef6\u4e8b\u4ef6\u5206\u6d3e\u5668\u3002<\/li>\n
- 3\u3001\u6587\u4ef6\u4e8b\u4ef6\u5206\u6d3e\u5668\uff1a\u6587\u4ef6\u4e8b\u4ef6\u5206\u6d3e\u5668\u8d1f\u8d23\u5c06\u8be5\u4e8b\u4ef6\u5206\u6d3e\u7ed9\u5bf9\u5e94\u7684\u4e8b\u4ef6\u5904\u7406\u5668\uff08\u4e00\u4e2a\u5904\u7406\u5668\u662f\u4e00\u4e2a\u51fd\u6570\uff0c\u7528\u4e8e\u5904\u7406\u7279\u5b9a\u7684\u4e8b\u4ef6\uff09\u8fdb\u884c\u5904\u7406\u3002<\/li>\n
- 4\u3001\u4e8b\u4ef6\u5904\u7406\u5668\u5c31\u662f\u4e00\u4e2a\u51fd\u6570\uff0c\u8fd9\u4e2a\u51fd\u6570\u4f1a\u5bf9\u5957\u63a5\u5b57\u4e0a\u53d1\u751f\u7684\u4e8b\u4ef6\u8fdb\u884c\u5904\u7406<\/li>\n<\/ul>\n
\u8865\u5145\uff1a<\/p>\n
Redis\u8bbe\u8ba1\u7684\u4e8b\u4ef6\u5206\u4e3a\u4e24\u79cd\uff0c\u6587\u4ef6\u4e8b\u4ef6\u548c\u65f6\u95f4\u4e8b\u4ef6\r\n1\u3001\u6587\u4ef6\u4e8b\u4ef6\u662f\u5bf9\u5957\u63a5\u5b57\u64cd\u4f5c\u7684\u62bd\u8c61\uff0c\u4f8b\u5982\r\n\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42\uff08AE_READABLE\u4e8b\u4ef6\uff09\r\n\u5ba2\u6237\u7aef\u547d\u4ee4\u8bf7\u6c42\uff08AE_READABLE\u4e8b\u4ef6\uff09\u548c\u4e8b\r\n\u670d\u52a1\u7aef\u547d\u4ee4\u56de\u590d\uff08AE_WRITABLE\u4e8b\u4ef6\uff09\r\n\r\n2\u3001\u65f6\u95f4\u4e8b\u4ef6\u5219\u662f\u5bf9\u4e00\u4e9b\u5b9a\u65f6\u64cd\u4f5c\u7684\u62bd\u8c61\r\n \u5206\u4e3a\u5b9a\u65f6\u4e8b\u4ef6\u548c\u5468\u671f\u6027\u65f6\u95f4\uff1bredis\u7684\u6240\u6709\u65f6\u95f4\u4e8b\u4ef6\u90fd\u5b58\u653e\u5728\u4e00\u4e2a\u65e0\u5e8f\u94fe\u8868\u4e2d\uff0c\r\n \u5f53\u65f6\u95f4\u4e8b\u4ef6\u6267\u884c\u5668\u8fd0\u884c\u65f6\uff0c\u9700\u8981\u904d\u5386\u94fe\u8868\u4ee5\u786e\u4fdd\u5df2\u7ecf\u5230\u8fbe\u65f6\u95f4\u7684\u4e8b\u4ef6\u88ab\u5168\u90e8\u5904\u7406\u3002<\/code><\/pre>\nRedis\u4e3a\u6bcf\u4e2aIO\u591a\u8def\u590d\u7528\u51fd\u6570\u90fd\u5b9e\u73b0\u4e86\u76f8\u540c\u7684API\uff0c\u56e0\u6b64\uff0c\u5e95\u5c42\u5b9e\u73b0\u662f\u53ef\u4ee5\u4e92\u6362\u7684\u3002<\/p>\n
Reids\u9ed8\u8ba4\u7684IO\u591a\u8def\u590d\u7528\u673a\u5236\u662fepoll\uff0c\u548cselect\/poll\u7b49\u5176\u4ed6\u591a\u8def\u590d\u7528\u673a\u5236\u76f8\u6bd4\uff0cepoll\u5177\u6709\u8bf8\u591a\u4f18\u70b9\uff1a
\n1\u3001epoll\uff1a\u7c7b\u4f3c\u4e0e\u56de\u8c03\uff0c\u5957\u63a5\u5b57\u7684\u63cf\u8ff0\u7b26\u5c31\u7eea\u540e\u4f1a\u4e3b\u52a8\u901a\u77e5
\n2\u3001select\uff1a\u9700\u8981\u5b9a\u671f\u8f6e\u8be2\u5957\u63a5\u5b57\u5bf9\u8c61
\n2\u3001poll\uff1a\u4e0eselect\u7c7b\u4f3c<\/p>\n
\n\n\n<\/th>\n \u5e76\u53d1\u8fde\u63a5\u9650\u5236<\/th>\n \u5185\u5b58\u62f7\u8d1d<\/th>\n \u6d3b\u8dc3\u8fde\u63a5\u611f\u77e5<\/th>\n<\/tr>\n<\/thead>\n \n\nepoll<\/td>\n \u6ca1\u6709\u6700\u5927\u5e76\u53d1\u8fde\u63a5\u7684\u9650\u5236<\/td>\n \u5171\u4eab\u5185\u5b58\uff0c\u65e0\u9700\u5185\u5b58\u62f7\u8d1d<\/td>\n \u57fa\u4e8eevent callback\u65b9\u5f0f\uff0c\u53ea\u611f\u77e5\u6d3b\u8dc3\u8fde\u63a5<\/td>\n<\/tr>\n \nselect<\/td>\n \u53d7fd\u9650\u5236\uff0c32\u4f4d\u673a\u9ed8\u8ba41024\u4e2a\/64\u4f4d\u673a\u9ed8\u8ba42048\u4e2a<\/td>\n \u628afd\u96c6\u5408\u4ece\u7528\u6237\u6001\u62f7\u8d1d\u5230\u5185\u6838\u6001<\/td>\n \u53ea\u80fd\u611f\u77e5\u6709fd\u5c31\u7eea\uff0c\u4f46\u65e0\u6cd5\u5b9a\u4f4d\uff0c\u9700\u8981\u904d\u5386+\u8f6e\u8be2<\/td>\n<\/tr>\n \npoll<\/td>\n \u91c7\u7528\u94fe\u8868\u5b58\u50a8fd\u65e0\u6700\u5927\u5e76\u53d1\u8fde\u63a5\u6570\u9650\u5236<\/td>\n \u540cselect<\/td>\n \u540cselect\uff0c\u9700\u904d\u5386+\u8f6e\u8be2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u7efc\u4e0a\uff0cRedis\u6574\u4e2a\u6267\u884c\u65b9\u6848\u662f\u901a\u8fc7\u9ad8\u6548\u7684I\/O\u591a\u8def\u590d\u7528\u4ef6\u9a71\u52a8\u65b9\u5f0f\u52a0\u4e0a\u5355\u7ebf\u7a0b\u5185\u5b58\u64cd\u4f5c\u6765\u8fbe\u5230\u4f18\u79c0\u7684\u5904\u7406\u6548\u7387\u548c\u6781\u9ad8\u7684\u541e\u5410\u91cf\u3002<\/p>\n
4.3 \u9ad8\u6548\u7684\u5185\u5b58\u7ba1\u7406<\/h2>\n
\u4e0a\u9762\u7684\u5c0f\u8282\u4e5f\u63d0\u5230\u4e86\uff0credis\u4e4b\u6240\u4ee5\u53ef\u4ee5\u4f7f\u7528\u5355\u7ebf\u7a0b\u6765\u5904\u7406\uff0c\u5176\u4e2d\u7684\u4e00\u4e2a\u539f\u56e0\u662f\uff0c\u5185\u5b58\u64cd\u4f5c\u5bf9\u8d44\u6e90\u635f\u8017\u8f83\u5c0f\uff0c\u4fdd\u8bc1\u4e86\u5904\u7406\u7684\u9ad8\u6548\u6027\u3002<\/p>\n
\u5982\u6b64\u5b9d\u8d35\u7684\u5185\u5b58\u8d44\u6e90\uff0cRedis\u662f\u600e\u4e48\u7ef4\u62a4\u548c\u7ba1\u7406\u7684\u5462\uff1f<\/p>\n
Redis\u7684\u5185\u5b58\u7ba1\u7406\u53ef\u4ee5\u5206\u4e3a\u4ee5\u4e0b\u51e0\u90e8\u5206\uff1a<\/p>\n
\n- \u5185\u5b58\u5206\u914d: Redis\u5728\u5b58\u50a8\u7528\u6237\u952e\u65f6\u4f1a\u4e25\u683c\u6309\u7167\u7528\u6237\u8bbe\u5b9a\u7684\u6700\u5927\u5185\u5b58\u9650\u5236\u201cmaxmemory\u201d\u8fdb\u884c\u5185\u5b58\u5206\u914d\u3002\u60a8\u53ef\u4ee5\u914d\u7f6e\u8fd9\u4e2a\u53c2\u6570\u6765\u51b3\u5b9aRedis\u53ef\u4ee5\u4f7f\u7528\u591a\u5c11\u7cfb\u7edf\u5185\u5b58\u3002<\/li>\n
- \u60f0\u6027\u5220\u9664\u548c\u8fc7\u671f\u952e\u5220\u9664: \u4e00\u4e2a\u952e\u53ef\u80fd\u5df2\u7ecf\u8fc7\u671f\u4e86\uff0c\u4f46\u76f4\u5230\u5176\u5728\u88ab\u8bfb\u53d6\u65f6\uff0cRedis\u624d\u4f1a\u53d1\u73b0\u5e76\u5220\u9664\uff0c\u8fd9\u88ab\u79f0\u4e3a\u60f0\u6027\u5220\u9664\u3002\u6b64\u5916\uff0cRedis\u4e5f\u4f1a\u5b9a\u671f\u8fdb\u884c\u952e\u7684\u5220\u9664\u64cd\u4f5c\uff0c\u4ee5\u53ca\u65f6\u91ca\u653e\u5185\u5b58\u3002<\/li>\n
- \u547d\u4e2d\u7387\u7edf\u8ba1\u548cLRU\u65f6\u95f4\u66f4\u65b0: \u5728\u8bfb\u53d6\u4e00\u4e2a\u952e\u540e\uff0cRedis\u4f1a\u8fdb\u884c\u547d\u4e2d\u7387\u7edf\u8ba1\u548c\u6700\u8fd1\u6700\u5c11\u4f7f\u7528(LRU)\u65f6\u95f4\u7684\u66f4\u65b0\u3002\u547d\u4e2d\u7387\u7edf\u8ba1\u7528\u4e8e\u8bb0\u5f55\u952e\u7684\u8bbf\u95ee\u60c5\u51b5\uff0cLRU\u65f6\u95f4\u5219\u7528\u4e8e\u8bb0\u5f55\u952e\u7684\u95f2\u7f6e\u65f6\u95f4\uff0c\u8fd9\u5c06\u5f71\u54cd\u952e\u7684\u6dd8\u6c70\u7b56\u7565\u3002<\/li>\n
- \u6570\u636e\u6dd8\u6c70\u7b56\u7565: \u5982\u679ckey\u751f\u4ea7\u7684\u592a\u5feb\uff0c\u5b9a\u671f\u5220\u9664\u64cd\u4f5c\u8ddf\u4e0d\u4e0a\u65b0\u751f\u4ea7\u7684\u901f\u7387\uff0c\u800c\u8fd9\u4e9bkey\u53c8\u5f88\u5c11\u88ab\u8bbf\u95ee\u65e0\u6cd5\u89e6\u53d1\u60f0\u6027\u5220\u9664\uff0c\u662f\u5426\u4f1a\u628a\u5185\u5b58\u6491\u7206\uff1f\u56de\u7b54\u662f\u4e0d\u4f1a\uff0c\u56e0\u4e3aredis\u6709\u6570\u636e\u6dd8\u6c70\u7b56\u7565:\n
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\u4e94\u3001Redis\u4e3a\u4ec0\u4e48\u8fd9\u4e48\u9760\u8c31<\/h1>\n
\u4e3b\u8981\u539f\u56e0\u6709\u4e24\u70b9\uff0c\u540e\u7eed\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd
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\u516d\u3001Redis6.x\u7684\u591a\u7ebf\u7a0b<\/h1>\n
Redis6.x\u4e4b\u540e\u63a8\u51fa\u4e86\u591a\u7ebf\u7a0b\u6a21\u578b\uff0c\u4f46\u8fd9\u4e2a\u591a\u7ebf\u7a0b\u6a21\u578b\u5e76\u4e0d\u662f\u4f20\u7edf\u610f\u4e49\u7684\u591a\u7ebf\u7a0b\u5e76\u53d1\uff0c\u770b\u4e0b\u56fe
\n
<\/div>
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