Performance Profiling

Total processing time: 30,042 ms; Peak memory: 7.131 MB. Show Profiling Timeline

总计3条数据。

Time	Duration	Category	Info

15:37:11.247	2.4 ms	yii\db\Connection::open	→Opening DB connection: mysql:host=mysql-teach;dbname=teach_exam
15:37:11.252	0.7 ms	yii\db\Command::query	→SELECT * FROM `exam` WHERE `id`=-1 ORDER BY `created_at` DESC LIMIT 10
15:37:11.251	0.7 ms	yii\db\Command::query	→SELECT COUNT(*) FROM `exam` WHERE `id`=-1