InnoDB存储引擎内存由以下几个部分组成:缓冲池(buffer pool)、重做日志缓冲池(redo log buffer)以及额外的内存池(additional memory pool),分别由配置文件中的参数innodb_buffer_pool_size、innodb_log_buffer_size、innodb_additional_mem_pool_size的大小决定。 缓冲池中缓存的数据页类型有:索引页、数据页、undo页、...
InnoDB存储引擎内存由以下几个部分组成:缓冲池(buffer pool)、重做日志缓冲池(redo log buffer)以及额外的内存池(additional memory pool),分别由配置文件中的参数innodb_buffer_pool_size、innodb_log_buffer_size、innodb_additional_mem_pool_size的大小决定。 缓冲池中缓存的数据页类型有:索引页、数据页、undo页、...
[!!] InnoDB buffer pool <= 1G and Innodb_buffer_pool_instances(!=1). [--] Number of InnoDB Buffer Pool Chunk : 8 for 8 Buffer Pool Instance(s) [OK] Innodb_buffer_pool_size aligned with Innodb_buffer_pool_chunk_size & Innodb_buffer_pool_instances [OK] InnoDB Read buffer efficiency:...
Default Value (Other) 8 (or 1 if innodb_buffer_pool_size < 1GB) This option only takes effect when setting innodb_buffer_pool_size to 1GB or more. The total buffer pool size is divided among all the buffer pools. For best efficiency, specify a combination of innodb_buffer_pool_instances...
MySQL运行中Key Efficiency较高，可能由于没有合适的索引导致。应通过相关SQL语句分析慢查询，并区分索引与非索引搜索，将情况性索引添加到MySQL数据表中，从而降低关键效率。此外，在MySQL配置文件中可以修改innodb_buffer_pool_size参数，减少MySQL实例使用的内存量，从而降低Key Efficiency值。
Buffer pool efficiency The item shows how effectively the buffer pool is serving reads. Calculated mysql.buffer_pool_efficiency Buffer pool utilization Ratio of used to total pages in the buffer pool. Calculated mysql.buffer_pool_utilization Created tmp files on disk per second How many temporary ...
(1)innodb_buffer_pool_size . 这个参数主要缓存innodb表的索引,数据,插入数据时的缓冲。为Innodb加速优化首要参数。 最重要的参数,设为内存的70%-80%。 2. 日志控制方面 (1)innodb_log_file_size 参考自:计算日志大小 日志大小。增大日志文件大小,可以减少数据库checkpoint操作。
For efficiency of high-volume read operations, the buffer pool is divided into pages that can potentially hold multiple rows. For efficiency of cache management, the buffer pool is implemented as a linked list of pages; data that is rarely used is aged out of the cache using a variation of...
Adjusting configuration parameters: Tailor MySQL configuration parameters, such as buffer pool sizes, to fit the needs of large tables. Regular table maintenance: Using commands like OPTIMIZE TABLE to regularly maintain tables can optimize their storage and index structures. ...
buffer pool The memory area that holds cached InnoDB data for both tables and indexes. For efficiency of high-volume read operations, the buffer pool is divided into pages that can potentially hold multiple rows. For efficiency of cache management, the buffer pool is implemented as a linked lis...