mysql参数中innodb_buffer_pool_size大小如何设置
发布时间：2022-01-11 14:05:39 所属栏目：MySql教程 来源：互联网
导读：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。 mysql show global vari
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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。 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！ （编辑：92站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
