Model a single-queue single-server system with a single traffic source and an infinite storage capacity. In the notation, the M stands for Markovian; M/M/1 means that the system has a Poisson arrival process, an exponential service time distribution, and one server. Queuing theory provides exact theoretical results for some performance measures of an M/M/1 queuing system and this model makes it easy to compare empirical results with the corresponding theoretical results.

Model a single-queue single-server system that has a Poisson arrival process and a server with constant service time. The queue has an infinite storage capacity. In the notation, the M stands for Markovian; M/D/1 means that the system has a Poisson arrival process, a deterministic service time distribution, and one server.

模型单程单式系统，其中，在该系统中分别以1.1和1的固定平均值均匀分布。队列具有无限的存储容量。在符号中，G代表具有已知均值和方差的一般分布。g/g/1意味着系统的安排和服务时间受这样一般分配的约束，并且该系统具有一台服务器。您可以更改统一分布的差异。您可以使用此模型检查Little的定律。

Have you ever been in a supermarket checkout and wondered why you are in the slowest line? This example shows how queuing systems can be modeled in SimEvents for this type of application. Two parallel versions of a simple model of a four register supermarket counter are presented - one that uses four separate queues and one with a single "serpentine" queue that feeds all registers.

Use a Discrete-Event Chart block to model a queue-server that can flush entities when it receives a message on the "FlushCmd" port.

Use a MATLAB Discrete Event System block to model a single server that can pause service. The input port IN receives entities to be served. Additionally, the system may receive sporadic pause commands on port PauseCmd. If the message received on the PauseCmd port carries data=1, the system pauses. The system reschedules service for the current entity when it receives a continue message on this port, i.e. a message that carries data=0.

使用MATLAB离散事件系统块来编写自定义n个服务器，可以使用键查找从中选择特定实体。乘客从块的端口输入并存储在块中，直到消息到达带有查找键的密钥端口为止。收到此消息后，系统会安排“迭代”事件，在此期间，它可以访问存储在其中的每个实体并输出与密钥匹配的实体。

当多个实体可供离开时，请使用实体优先级来序列实体出发。该示例模拟机场登机柜台，乘客到达，乘客可以使用实体优先级值1、2和3分别建模一流，商务舱或经济级预订。

Use SimEvents® to model a process such as the boarding of an aircraft. The process consists of multiple activities such as "Disembark", "SecurityCheck", "Refueling" etc. Some activities can be done concurrently, as represented by multiple parallel paths using AND blocks. Some activities are mutually exclusive and these are represented as output paths using OR blocks. Each activity takes up non-zero time. You can use such a model to study various aspects of a process, such as bottlenecks, resource contention, latencies, etc. The model generates a single entity at the start of simulation. This entity represents the control flow in the process. The position of the entity in the model determines which activity is currently running.