Realm.io删除许多物体需要太长

Question

我在领域中存储了一些聊天数据，在其中添加了> 40k对象进行性能测试。查询很快，但是删除需要太长并冻结UI：

static func deleteMessagesForChatId(chatId: String) {
    dispatch_async(dispatch_queue_create("background", nil)) {
        let realm = try! Realm()
        let realmChatMessages = realm.objects(RealmChatMessage).filter("chatId = '(chatId)'")
        try! realm.write {
            realm.delete(realmChatMessages)
            print("message deleted from realm")
        }
    }
}

Answer 1

而不是尝试！realm.write尝试使用：

realm.beginWrite()
realm.delete(realmChatMessages)
try! realm.commitWrite()