Characterizing the resource demands of TCP/IP
Characterizing the resource demands of TCP/IP
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表征 TCP/IP 的资源需求
DOI：
10.1007/bfb0046613
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
J. Rolia
中科院分区：
文献类型：
--
作者：
Ennio Pozzetti;G. Serazzi;Vidar Vetland;J. Rolia
通信成本会显着影响分布式应用程序的性能行为。我们考虑估计常用网络通信子系统（即 TCP/IP）的资源需求的问题。我们表明，对于不同的消息大小，与 TCP/IP 相关的资源需求差异很大，并且行为方式不直观。例如，较大的消息比较短的消息需要更少的 CPU 时间。我们发现 TCP 的不同实现具有特定于实现的签名，描述消息大小和 CPU 需求之间的关系。这些签名可用于支持分布式应用程序的面向性能的设计和管理。提出了用于查找实现签名的表征过程。该过程是非侵入式的，并使用大多数 Unix 环境中可用的测量工具。通过这种方式，分析师可以在许多平台上重复该过程。
Communication costs can significantly affect the performance behavior of distributed applications. We consider the problem of estimating the resource demands of a commonly used network communication subsystem, namely TCP/IP. We show that the resource demands associated with TCP/IP vary significantly for different message sizes and behave in a non-intuitive manner. For example, larger messages can require less CPU time than shorter messages. We find that different implementations of TCP have implementation-specific signatures that describe the relationship between message size and CPU demand. These signatures can be used to support performance-oriented design and management of distributed applications. A characterization procedure for finding an implementation's signature is presented. The procedure is non-intrusive and uses measurement tools that are or can be made available in most Unix environments. In this way the procedure can be repeated by analysts on many platforms.