# 3  Percona 5.7 特性

- [3.1 状态变量与系统变量的变化](/mysql5-7/3percona57-te-xing/3.1-zhuang-tai-bian-liang-yu-xi-tong-bian-liang-de-bian-hua.md)
- [3.2  Buffer pool 扩展性提升](/mysql5-7/3percona57-te-xing/3.2-buffer-pool-kuo-zhan-xing-ti-sheng.md)
- [3.3  Innodb IO 扩展性提升](/mysql5-7/3percona57-te-xing/3.3-innodb-io-kuo-zhan-xing-ti-sheng.md)
- [3.4 NUMA 支持强化](/mysql5-7/3percona57-te-xing/3.4-numa-zhi-chi-qiang-hua.md)
- [3.5 Thread pool 增强](/mysql5-7/3percona57-te-xing/3.5-thread-pool-zeng-qiang.md)
- [3.6 Kill 空闲事务](/mysql5-7/3percona57-te-xing/3.6-kill-kong-xian-shi-wu.md)
- [3.7 备份锁](/mysql5-7/3percona57-te-xing/3.7-bei-fen-suo.md)