Description: NET的事务控制
在分布式应用程序中，不可避免地会经常使用到事务控制。事务有一个开头和一个结尾，它们指定了事务的边界，事务在其边界之内可以跨越进程和计算机。事务边界内的所有资源都参与同一个事务。要维护事务边界内资源间的一致性，事务必须具备 ACID 属性，即原子性、一致性、隔离性和持续性。
本地事务和分布式事务
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本地事务是其范围为单个可识别事务的数据资源的事务（例如，Microsoft SQL Server 数据库或 MSMQ 消息队列）。例如，当单个数据库系统拥有事务中涉及的所有数据时，就可以遵循 ACID 规则。在 SQL Server 的情况下，由内部事务管理器来实现事务的提交和回滚操作。-NET Services in distributed control applications, will inevitably be used to control affairs. Services have a beginning and an end, they have designated border affairs, in its affairs within the borders across process and computers. Services within the borders of all resources involved with a transaction. Services to protect the resources within the borders of consistency, the Panel must possess ACID properties, that is, atomicity, consistency, isolation and sustainability. Local Affairs and the Distributed Transaction -------------------- domestic affairs of its range of single - Services could be the identification of resources data services (for example, Microsoft SQL Server database or MSMQ Message Queue). For example, when a single database system with affairs involving all the data, Platform: |
Size: 4579 |
Author:name |
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Description: M/M/1单服务台排队系统仿真（用事件调度法实现离散事件系统仿真）
顾客到达模到达时间间隔和顾客服务时间均服从负指数分布，单服务台系统，按照单队排队，按FIFO方式服务。考察服务n个顾客（n=1000，2000，3000，5000）后的顾客平均队长及平均排队等待时间。-M/M/1 single-server queuing system simulation (using Event Scheduling Method Discrete Event Simulation System) to customers Da-mo arrival time interval and customer service time are negative exponential distribution, single-desk system, in accordance with the single-team queue, by FIFO mode services. N inspection services customers (n = 1000,2000,3000. 5000) the average customer captain, and the average queue time. Platform: |
Size: 1500 |
Author:麦麦 |
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Description: NET的事务控制
在分布式应用程序中，不可避免地会经常使用到事务控制。事务有一个开头和一个结尾，它们指定了事务的边界，事务在其边界之内可以跨越进程和计算机。事务边界内的所有资源都参与同一个事务。要维护事务边界内资源间的一致性，事务必须具备 ACID 属性，即原子性、一致性、隔离性和持续性。
本地事务和分布式事务
--------------------
本地事务是其范围为单个可识别事务的数据资源的事务（例如，Microsoft SQL Server 数据库或 MSMQ 消息队列）。例如，当单个数据库系统拥有事务中涉及的所有数据时，就可以遵循 ACID 规则。在 SQL Server 的情况下，由内部事务管理器来实现事务的提交和回滚操作。-NET Services in distributed control applications, will inevitably be used to control affairs. Services have a beginning and an end, they have designated border affairs, in its affairs within the borders across process and computers. Services within the borders of all resources involved with a transaction. Services to protect the resources within the borders of consistency, the Panel must possess ACID properties, that is, atomicity, consistency, isolation and sustainability. Local Affairs and the Distributed Transaction-------------------- domestic affairs of its range of single- Services could be the identification of resources data services (for example, Microsoft SQL Server database or MSMQ Message Queue). For example, when a single database system with affairs involving all the data, Platform: |
Size: 4096 |
Author:name |
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Description: M/M/1单服务台排队系统仿真（用事件调度法实现离散事件系统仿真）
顾客到达模到达时间间隔和顾客服务时间均服从负指数分布，单服务台系统，按照单队排队，按FIFO方式服务。考察服务n个顾客（n=1000，2000，3000，5000）后的顾客平均队长及平均排队等待时间。-M/M/1 single-server queuing system simulation (using Event Scheduling Method Discrete Event Simulation System) to customers Da-mo arrival time interval and customer service time are negative exponential distribution, single-desk system, in accordance with the single-team queue, by FIFO mode services. N inspection services customers (n = 1000,2000,3000. 5000) the average customer captain, and the average queue time. Platform: |
Size: 1024 |
Author:麦麦 |
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Description: 香港中文大学关于单队列单服务器的队列模型代码-Chinese University of Hong Kong on the single-queue, single server queue model code Platform: |
Size: 1024 |
Author:zhu |
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Description: 英国一所高校单队列单服务器模型用java写的代码-UK colleges and universities a single queue, single server model to use to write java code Platform: |
Size: 2048 |
Author:zhu |
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Description: QGServerLib是一个C++实现的简单易用的Tcp服务器框架库，旨在简化服务器的构建过程。
具有如下特点：
1, 以模块化的处理池为基本构建元素，能够方便的实现安全稳定的服务架构。
2，事件触发，多线程事件监听，任务化读写访问，解决单线程监听及数据读写带来的性能瓶颈，连接不受线程数限制。
3，写队列，并行读写逻辑，支持服务器数据推送（Push）。
4，数据传送协议，避免数据传送错误，封装数据流。
5，类远过程调用。
6，提供相配套的ActionScript?脚本客户端。能够方便的实现网页实时通讯，解决传统网页通讯的消息轮询问题。
下载最新版本请访问：http://code.google.com/p/qgserver/-QGServerLib is a easy-to-use C++ framework for Tcp server to simplify the building process.
With the following characteristics:
1, The basic element of server is modular handling pool that can facilitate the realization of security and stability of the system.
2,With Event-triggered, multi-threaded event listener and the task of read-write access, solute single-threaded reading and writing performance bottleneck. Connection is out of the thread limit.
3,Write queue, parallel reading and writing and support for server data push.
4,Use Data transfer protocol to avoid data transmission errors and package data flow.
5, Far procedure call.
6, Provide matching ActionScript client to facilitate the realization of real-time web communications to address the traditional poll of communication.
Download the latest version, please visit:
http://code.google.com/p/qgserver/ Platform: |
Size: 1081344 |
Author:lwp |
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Description: 用c++实现排队轮中，适用于1台服务器，多个客户的模型，程序运行提示客户输入相应的条件，达到运行效果。-Using c++ implementation in the queue for a single server, multiple client model, the program prompts customers to enter the appropriate operating conditions, to achieve operating results. Platform: |
Size: 9216 |
Author:王鹏 |
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Description: 单列多服务台排队系统需求分析
用户在系统主界面输入服务台数、顾客总数、仿真时间、等初始数据，经过后台系统处理相关数据并进行分析计算，得出顾客排队的最大队长、平均队长、系统中平均实体数、顾客平均等待时间、顾客最大等待时间、服务台的空期和忙期各占百分比以及每个顾客在系统中花费的时间等等。-Single multi-server queuing system requirements analysis the main user interface to enter in the system help desk number, customer number, simulation time, and so the initial data, after data processing and back office systems analysis calculated the greatest captain of the customer queue, average queue length, system, the average number of entities, average customer waiting time, maximum waiting time for customers, the empty desk and the busy period of each and every customer the percentage of time spent in the system and so on. Platform: |
Size: 3072 |
Author:xuwentao |
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Description: 单队列多服务台排队系统系统分析报告
1、系统的组成实体
实体：顾客、n个服务台、队列
2、系统组成实体的属性
顾客属性：到达时间、编号、
服务机构属性：编号、忙闲状态、服务项目的时长
队列属性：队列长
-Single-queue multi-server queuing system, system analysis 1, the system' s constituent entities of entities: customers, n a desk, queue 2, the system properties of the constituent entities of the customer attributes: arrival time, number, service attributes: number, busy state , the length of time service queue attributes: queue length Platform: |
Size: 186368 |
Author:xuwentao |
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Description: Simulate queueing
In queueing theory, a discipline within the mathematical theory of probability, an M/M/1 queue represents the queue length in a system having a single server, where arrivals are determined by a Poisson process and job service times have an exponential distribution. The model name is written in Kendall s notation. The model is the most elementary of queueing models[1] and an attractive object of study as closed-form expressions can be obtained for many metrics of interest in this model-In queueing theory, a discipline within the mathematical theory of probability, an M/M/1 queue represents the queue length in a system having a single server, where arrivals are determined by a Poisson process and job service times have an exponential distribution. The model name is written in Kendall s notation. The model is the most elementary of queueing models[1] and an attractive object of study as closed-form expressions can be obtained for many metrics of interest in this model Platform: |
Size: 1024 |
Author:Giren |
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Description: In queueing theory, the M/M/c queue is a multi-server queueing model.[1] In Kendall s notation it describes a system where arrivals form a single queue and are governed by a Poisson process, there are c servers and job service times are exponentially distributed.[2] It is a generalisation of the M/M/1 queue which considers only a single server. The model with infinitely many servers is the M/M/∞ queue. Platform: |
Size: 1024 |
Author:Giren |
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Search - single server queue