mysql单表数量极限和性能_MySQL
账户流水表
mysql> select count(1) from account_log;
+-----------+| count(1) |
+-----------+
| 393625073
+-----------+
1 row in set (1 min 6.98 sec)
dao层方法 每分钟请求数 毫秒数
1. selectByOrderId 358 3毫秒 (阿里云网络延时2-3毫秒)
2. insert 100 2.89 毫秒
这个统计结果大大出乎我的意料.
分析起来, 我们的业务操作都是操作近期的数据. 所以索引分区文件不需要io切换, 数据不需要io切换
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