
主要是innodb和myisam表
show variables like "%buffer%";+-----------------------------------------------------+--------------------+| Variable_name | Value |+-----------------------------------------------------+--------------------+| bulk_insert_buffer_size | 8388608 || innodb_buffer_pool_chunk_size | 33554432 || innodb_buffer_pool_dump_at_shutdown | ON || innodb_buffer_pool_dump_now | OFF || innodb_buffer_pool_dump_pct | 25 || innodb_buffer_pool_filename | ib_buffer_pool || innodb_buffer_pool_instances | 1 || innodb_buffer_pool_load_abort | OFF || innodb_buffer_pool_load_at_startup | ON || innodb_buffer_pool_load_now | OFF || innodb_buffer_pool_size | 67108864 || innodb_change_buffer_max_size | 25 || innodb_change_buffering | all || innodb_log_buffer_size | 16777216 || innodb_sort_buffer_size | 1048576 || join_buffer_size | 262144 || key_buffer_size | 8388608 || myisam_sort_buffer_size | 8388608 || net_buffer_length | 16384 || preload_buffer_size | 32768 || read_buffer_size | 131072 || read_rnd_buffer_size | 262144 || sort_buffer_size | 262144 || sql_buffer_result | OFF |+-----------------------------------------------------+---------------------+