Performance Profiling

Total processing time: 50 ms; Peak memory: 7.346 MB. Show Profiling Timeline

总计20条数据。

Time	Duration	Category	Info

04:04:43.722	2.1 ms	yii\db\Connection::open	Opening DB connection: mysql:host=mysql-teach;dbname=teach_exam
04:04:43.737	1.0 ms	yii\db\Command::query	SHOW FULL COLUMNS FROM `question`
04:04:43.727	1.0 ms	yii\db\Command::query	SHOW FULL COLUMNS FROM `paper`
04:04:43.732	0.9 ms	yii\db\Command::query	SELECT * FROM `paper_question` WHERE (`question_type`='select') AND (`paper_id`='18') ORDER BY `sort`
04:04:43.735	0.8 ms	yii\db\Command::query	SELECT `kcu`.`CONSTRAINT_NAME` AS `constraint_name`, `kcu`.`COLUMN_NAME` AS `column_name`, `kcu`.`REFERENCED_TABLE_NAME` AS `referenced_table_name`, `kcu`.`REFERENCED_COLUMN_NAME` AS `referenced_column_name` FROM `information_schema`.`REFERENTIAL_CONSTRAINTS` AS `rc` JOIN `information_schema`.`KEY_COLUMN_USAGE` AS `kcu` ON ( `kcu`.`CONSTRAINT_CATALOG` = `rc`.`CONSTRAINT_CATALOG` OR (`kcu`.`CONSTRAINT_CATALOG` IS NULL AND `rc`.`CONSTRAINT_CATALOG` IS NULL) ) AND `kcu`.`CONSTRAINT_SCHEMA` = `rc`.`CONSTRAINT_SCHEMA` AND `kcu`.`CONSTRAINT_NAME` = `rc`.`CONSTRAINT_NAME` WHERE `rc`.`CONSTRAINT_SCHEMA` = database() AND `kcu`.`TABLE_SCHEMA` = database() AND `rc`.`TABLE_NAME` = 'paper_question' AND `kcu`.`TABLE_NAME` = 'paper_question'
04:04:43.734	0.8 ms	yii\db\Command::query	SHOW FULL COLUMNS FROM `paper_question`
04:04:43.740	0.8 ms	yii\db\Command::query	SELECT * FROM `question` WHERE `id`='80'
04:04:43.736	0.8 ms	yii\db\Command::query	SELECT * FROM `question` WHERE `id`='83'
04:04:43.743	0.8 ms	yii\db\Command::query	SELECT * FROM `paper_question` WHERE (`question_type`='judge') AND (`paper_id`='18') ORDER BY `sort`
04:04:43.743	0.7 ms	yii\db\Command::query	SELECT * FROM `paper_question` WHERE (`question_type`='fill') AND (`paper_id`='18') ORDER BY `sort`
04:04:43.728	0.7 ms	yii\db\Command::query	SELECT `kcu`.`CONSTRAINT_NAME` AS `constraint_name`, `kcu`.`COLUMN_NAME` AS `column_name`, `kcu`.`REFERENCED_TABLE_NAME` AS `referenced_table_name`, `kcu`.`REFERENCED_COLUMN_NAME` AS `referenced_column_name` FROM `information_schema`.`REFERENTIAL_CONSTRAINTS` AS `rc` JOIN `information_schema`.`KEY_COLUMN_USAGE` AS `kcu` ON ( `kcu`.`CONSTRAINT_CATALOG` = `rc`.`CONSTRAINT_CATALOG` OR (`kcu`.`CONSTRAINT_CATALOG` IS NULL AND `rc`.`CONSTRAINT_CATALOG` IS NULL) ) AND `kcu`.`CONSTRAINT_SCHEMA` = `rc`.`CONSTRAINT_SCHEMA` AND `kcu`.`CONSTRAINT_NAME` = `rc`.`CONSTRAINT_NAME` WHERE `rc`.`CONSTRAINT_SCHEMA` = database() AND `kcu`.`TABLE_SCHEMA` = database() AND `rc`.`TABLE_NAME` = 'paper' AND `kcu`.`TABLE_NAME` = 'paper'
04:04:43.744	0.7 ms	yii\db\Command::query	SELECT * FROM `paper_question` WHERE (`question_type`='text') AND (`paper_id`='18') ORDER BY `sort`
04:04:43.741	0.7 ms	yii\db\Command::query	SELECT * FROM `question` WHERE `id`='78'
04:04:43.741	0.6 ms	yii\db\Command::query	SELECT * FROM `question` WHERE `id`='79'
04:04:43.738	0.6 ms	yii\db\Command::query	SELECT `kcu`.`CONSTRAINT_NAME` AS `constraint_name`, `kcu`.`COLUMN_NAME` AS `column_name`, `kcu`.`REFERENCED_TABLE_NAME` AS `referenced_table_name`, `kcu`.`REFERENCED_COLUMN_NAME` AS `referenced_column_name` FROM `information_schema`.`REFERENTIAL_CONSTRAINTS` AS `rc` JOIN `information_schema`.`KEY_COLUMN_USAGE` AS `kcu` ON ( `kcu`.`CONSTRAINT_CATALOG` = `rc`.`CONSTRAINT_CATALOG` OR (`kcu`.`CONSTRAINT_CATALOG` IS NULL AND `rc`.`CONSTRAINT_CATALOG` IS NULL) ) AND `kcu`.`CONSTRAINT_SCHEMA` = `rc`.`CONSTRAINT_SCHEMA` AND `kcu`.`CONSTRAINT_NAME` = `rc`.`CONSTRAINT_NAME` WHERE `rc`.`CONSTRAINT_SCHEMA` = database() AND `kcu`.`TABLE_SCHEMA` = database() AND `rc`.`TABLE_NAME` = 'question' AND `kcu`.`TABLE_NAME` = 'question'
04:04:43.726	0.6 ms	yii\db\Command::query	SELECT * FROM `paper` WHERE `id`='18'
04:04:43.733	0.6 ms	yii\db\Command::query	SELECT * FROM `paper_question` WHERE (`question_type`='multiselect') AND (`paper_id`='18') ORDER BY `sort`
04:04:43.739	0.5 ms	yii\db\Command::query	SELECT * FROM `question` WHERE `id`='81'
04:04:43.738	0.5 ms	yii\db\Command::query	SELECT * FROM `question` WHERE `id`='82'
04:04:43.742	0.3 ms	yii\db\Command::query	SELECT * FROM `question` WHERE `id`='77'