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mysql服务器内存使用情况总结

时间:2021-07-01 10:21:17 帮助过:2人阅读

//memory for sequential table scans +read_rnd_buffer_size // memory for buffering reads +sort_buffer_size // memory ofr in mem sorts +thread_stack //per connection memory +join_buffer_size // memory for in mem table joins

 

每台服务器(固定)使用内存的数量如下所示:

 

per_server_memory =

tmp_table_size //memory for all temp tables

+max_heap_table_size // max size of single temp table

+key_buffer_size //memory allocated for index blocks

+innodb_buffer_pool_size // main cache for InnoDB data

+innodb_additional_mem_pool_size // InnoDB record structure cache

+innodb_log_buffer_size // log file write buffer

+query_cache_size // compiled statement cache

 

Mysql可以使用的最大内存定义如下:

max_memory = (per_connection_memory* max _connections) + per_server_memory

 

mysql服务器内存使用情况总结

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