MySQL5.7 内存一直好高，

[nellace]

centos7 1g 内存装了 mysql5.7 ，配置
[client]
default-character-set = utf8

[mysqld]
#performance_schema_max_table_instances=200
table_open_cache = 200
default-storage-engine = INNODB
character-set-server = utf8
collation-server = utf8_general_ci

datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock

symbolic-links=0

log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

[mysqldump]
quick
max_allowed_packet = 8M #服务器发送和接受的最大包长度

[myisamchk]
key_buffer_size = 4M
sort_buffer_size = 4M
read_buffer = 2M
write_buffer = 2M

不知道怎么解决

[wanghanlin]

据说跟这个有关 http://bugs.mysql.com/bug.php?id=80772

[tcsky]

```
[mysqld]
performance_schema = 0
```

performance_schema 这个选项式分析用的,小内存机器可以关了，　能省好多内存

https://gist.github.com/tiancheng91/c9b605cd7cdd363c75a1