func test(engine *xorm.Engine) { err := engine.CreateTables(u) if err != nil { fmt.Println(err) return } size := 500 queue := make(chan int, size) for i := 0; i < size; i++ { go func(x int) { //x := i err := engine.Ping() if err != nil { fmt.Println(err) } else { for j := 0; j < 10; j++ { if x+j < 2 { _, err = engine.Get(u) } else if x+j < 4 { users := make([]User, 0) err = engine.Find(&users) } else if x+j < 8 { _, err = engine.Count(u) } else if x+j < 16 { _, err = engine.Insert(&User{Name: "xlw"}) } else if x+j < 32 { //_, err = engine.Id(1).Delete(u) _, err = engine.Delete(u) } if err != nil { fmt.Println(err) queue <- x return } } fmt.Printf("%v success!\n", x) } queue <- x }(i) } for i := 0; i < size; i++ { <-queue } //conns := atomic.LoadInt32(&xorm.ConnectionNum) //fmt.Println("connection number:", conns) fmt.Println("end") }