Performance Profiling

Total processing time: 54 ms; Peak memory: 7.087 MB. Show Profiling Timeline

总计4条数据。

Time	Duration	Category	Info

16:28:11.723	2.4 ms	yii\db\Connection::open	Opening DB connection: mysql:host=mysql-teach;dbname=teach_exam
16:28:11.731	2.1 ms	yii\db\Command::query	SELECT * FROM `paper_course_chapter_relation` WHERE (`is_deleted`=1) AND (`course_id`='54')
16:28:11.736	1.3 ms	yii\db\Command::query	SELECT COUNT(*) FROM `paper` WHERE 0=1
16:28:11.737	0.3 ms	yii\db\Command::query	SELECT * FROM `paper` WHERE 0=1 ORDER BY `updated_at` DESC LIMIT 10