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innodb_buffer_pool_size 大小建議
mysql> SHOW GLOBAL STATUS LIKE 'Innodb_buffer_pool_pages_data';
+-------------------------------+-------+
| Variable_name | Value |
+-------------------------------+-------+
| Innodb_buffer_pool_pages_data | 1388 |
+-------------------------------+-------+
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 | 131071 |
+--------------------------------+--------+
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)
'Innodb_buffer_pool_pages_data' X 100 / 'Innodb_buffer_pool_pages_total'
當結果 > 95% 則增加 innodb_buffer_pool_size， 建議使用 ram total 75%
當結果 < 95% 則減少 innodb_buffer_pool_size，
建議 'Innodb_buffer_pool_pages_data' X 'Innodb_page_size' X 1.05 / (1024*1024*1024)
最後更新：2017-04-03 18:52:13