189 8069 5689

mysql参数中innodb_buffer_pool_size大小怎么设置

这篇文章主要为大家展示了“MySQL参数中innodb_buffer_pool_size大小怎么设置”,内容简而易懂,条理清晰,希望能够帮助大家解决疑惑,下面让小编带领大家一起研究并学习一下“mysql参数中innodb_buffer_pool_size大小怎么设置”这篇文章吧。

创新互联专注为客户提供全方位的互联网综合服务,包含不限于成都做网站、成都网站建设、温县网络推广、微信小程序开发、温县网络营销、温县企业策划、温县品牌公关、搜索引擎seo、人物专访、企业宣传片、企业代运营等,从售前售中售后,我们都将竭诚为您服务,您的肯定,是我们最大的嘉奖;创新互联为所有大学生创业者提供温县建站搭建服务,24小时服务热线:028-86922220,官方网址:www.cdcxhl.com

mysql> show global variables like 'innodb_buffer_pool_size';

+-------------------------+-----------+
| Variable_name           | Value     |
+-------------------------+-----------+
| innodb_buffer_pool_size | 134217728 |
+-------------------------+-----------+
1 row in set (0.00 sec)

那么如何设置该参数大小呢?首先查看运行时buffer pool相关数据指标:

mysql> show global status like 'Innodb_buffer_pool_pages_data';
+-------------------------------+-------+
| Variable_name                 | Value |
+-------------------------------+-------+
| Innodb_buffer_pool_pages_data | 314   |
+-------------------------------+-------+
1 row in set (0.00 sec)

mysql> show global status like 'Innodb_buffer_pool_pages_total';
+--------------------------------+-------+
| Variable_name                  | Value |
+--------------------------------+-------+
| Innodb_buffer_pool_pages_total | 8191  |
+--------------------------------+-------+
1 row in set (0.00 sec)

mysql> show global status like 'Innodb_page_size';
+------------------+-------+
| Variable_name    | Value |
+------------------+-------+
| Innodb_page_size | 16384 |
+------------------+-------+
1 row in set (0.00 sec)

上述三项指标的含义如下:

Innodb_buffer_pool_pages_data
The number of pages in the InnoDB buffer pool containing data. The number includes both dirty and
clean pages.

Innodb_buffer_pool_pages_total
The total size of the InnoDB buffer pool, in pages.

Innodb_page_size
InnoDB page size (default 16KB). Many values are counted in pages; the page size enables them to be
easily converted to bytes

计算Innodb_buffer_pool_pages_data/Innodb_buffer_pool_pages_total*100%
当结果 > 95% 则增加 innodb_buffer_pool_size, 建议使用物理内存的 75%
当结果 < 95% 则减少 innodb_buffer_pool_size, 

建议设置大小为: Innodb_buffer_pool_pages_data* Innodb_page_size * 1.05 / (1024*1024*1024)

命令如:SET GLOBAL innodb_buffer_pool_size= 32423423:单位kb

以上是“mysql参数中innodb_buffer_pool_size大小怎么设置”这篇文章的所有内容,感谢各位的阅读!相信大家都有了一定的了解,希望分享的内容对大家有所帮助,如果还想学习更多知识,欢迎关注创新互联行业资讯频道!


网页名称:mysql参数中innodb_buffer_pool_size大小怎么设置
新闻来源:http://cdxtjz.cn/article/jhihcp.html

其他资讯