# # Create and drop a table, larger than the buffer pool so that # everything else is evicted from it. # # Beware: Running this with big buffer pool is slow. # -- disable_query_log -- echo # Emptying InnoDB buffer pool: begin CREATE TABLE _big (a TEXT) ENGINE=INNODB; -- let $bp_size = `SELECT @@innodb_buffer_pool_size` -- echo # Buffer pool size: $bp_size bytes -- let $table_size = `SELECT ROUND($bp_size * 2.0)` -- echo # Creating and dropping a table with size: $table_size bytes -- let $row_size = 1024 -- let $i = `SELECT ROUND($table_size / $row_size)` BEGIN; while ($i) { -- eval INSERT INTO _big VALUES (REPEAT('a', $row_size)); dec $i; } COMMIT; -- disable_result_log SELECT * FROM _big WHERE a = 'find nothing'; -- enable_result_log DROP TABLE _big; -- echo # Emptying InnoDB buffer pool: end -- enable_query_log