你已经配置了超过需要的内存，检查你的配置（my.cnf，my.cnf.d等）为innodb_buffer_pool_size和降低它...
11.5.9 Understanding the Effect of InnoDB Buffer Pool Size on Performance. 333 11.6 Summary. 335 Part 5 Conclusion. 336 Chapter 12: Future Directions. 336 12.1 Improvements to Hypergraph Algorithms. 336 12.2 Practical Implementation of Paxos Log Persistence Functionality. 336 12.3 Addressing Concurrent...
## raising this buffer. Care should be taken not to make the join buffer too big ## default: 128K, Maximum allowed: 4G join_buffer_size = 2M ## Stack size for each thread.The default of 192KB (256KB for 64-bit systems) is large ## enough for normal operation. If the thread stac...
mysqld is restarting for some reason, leaving the buffer pool cold on restart. This can be eliminated by SHOW GLOBAL STATUS (uptime column) and looking at the error log for restart information. Your buffer pool is set large, but your innodb_log_file_size is too low. I'm not sure of ...
Buffer pool utilization is a useful metric to check before you consider resizing the buffer pool. The utilization metric is not available out of the box but can be easily calculated as follows: (Innodb_buffer_pool_pages_total - Innodb_buffer_pool_pages_free) / Innodb_buffer_pool_pages_total...
设计的目的,就是让高附加值的数据尽可能长时间呆在Buffer Pool中 Rather than using a strict LRU algorithm, InnoDB uses a technique to minimize the amount of data that is brought into the buffer pool and never accessed again. The goal is to make sure that frequently accessed (“hot”) pages ...
此状态可能是由顺序表扫描引起的。 应检查 innodb_buffer_pool_reads 和 innodb_buffer_pool_read_requests 的值,以确定是否有大量页面从磁盘进入内存中。 有关详细信息,请参阅排查 Azure Database for MySQL 灵活服务器中的内存不足问题。 更新 此状态通常意味着线程正在执行写入操作。 检查性能监视器中的 IO ...
Buffer pool flushing is initiated when the percentage of dirty pages reaches the low water mark value defined by theinnodb_max_dirty_pages_pct_lwmvariable. The default low water mark is 10% of buffer pool pages. Ainnodb_max_dirty_pages_pct_lwmvalue of 0 disables this early flushing behaviour...
Buffer pool utilization is too low The buffer pool utilization is less than {$MYSQL.BUFF_UTIL.MIN.WARN}% in the last 5 minutes. This means that there is a lot of unused RAM allocated for the buffer pool, which you can easily reallocate at the moment. max(/MySQL by Zabbix agent/mysql...
On Linux, if the kernel is enabled for large page support, InnoDB can use large pages to allocate memory for its buffer pool and additional memory pool. See Section 8.12.5.2, "Enabling Large Page Support".在Linux平台上,如果内核已经开启对大页的支持,InnoDB也可以为它的buffer pool和additional ...