The Staged Event-Driven Architecture (SEDA) is a new design for building scalable Internet services. SEDA has three major goals: To support massive concurrency, on the order of tens of thousands of clients per node To exhibit robust performance under wide variations in load and, To simplify the design of complex Internet services. SEDA decomposes a complex, event-driven application into a set of stages connected by queues. This design avoids the high overhead associated with thread-based concurrency models, and decouples event and thread scheduling from application logic. SEDA enables services to be well-conditioned to load, preventing resources from being overcommitted when demand exceeds service capacity. Decomposing services into a set of stages also enables modularity and code reuse, as well as the development of debugging tools for complex event-driven applications.
標簽: Event-Driven Architecture Internet building
上傳時間: 2015-09-28
上傳用戶:日光微瀾
penMesh is a generic and efficient data structure for representing and manipulating polygonal meshes. OpenMesh is developed at the Computer Graphics Group, RWTH Aachen , as part of the OpenSGPlus project, is funded by the German Ministry for Research and Education ( BMBF), and will serve as geometry kernel upon which the so-called high level primitives (e.g. subdivision surfaces or progressive meshes) of OpenSGPlus are built. It was designed with the following goals in mind : Flexibility : provide a basis for many different algorithms without the need for adaptation. Efficiency : maximize time efficiency while keeping memory usage as low as possible. Ease of use : wrap complex internal structure in an easy-to-use interface.
標簽: manipulating representing and efficient
上傳時間: 2015-10-14
上傳用戶:米卡
要學MFC必看之書,由Jeff Prosise編寫。下面是作者前言: The production of this book required the efforts of many people, but two in particular deserve to be singled out for their diligent, sustained, and unselfish efforts. Sally Stickney, the book s principal editor, navigated me through that minefield called the English language and contributed greatly to the book s readability. Marc Young, whose talents as a technical editor are nothing short of amazing, was relentless in tracking down bugs, testing sample code, and verifying facts. Sally, Marc: This book is immeasurably better because of you. Thanks.
標簽: MFC
上傳時間: 2015-10-20
上傳用戶:waizhang
Ajax, the popular term for Asynchronous JavaScript and XML, is one of the most important combinations of technologies for web developers to know these days. With its rich grouping of technologies, Ajax developers can create interactive web applications with XML-based web services, using JavaScript in the browser to process the web server response.
標簽: Asynchronous combination JavaScript the
上傳時間: 2015-11-20
上傳用戶:qazxsw
Matrix TCL Lite 1.12 This matrix C++ template class library is for performing common matrix operations in your C++ program like any other built-in data types. To install the package, just copy MATRIX.H file into the INCLUDE directory of your compiler and include this header file in your program source file.
標簽: matrix performing template library
上傳時間: 2016-01-05
上傳用戶:h886166
Abstract—Mobile devices performing video coding and streaming over wireless and pervasive communication networks are limited in energy supply. To prolong the operational lifetime of these devices, an embedded video encoding system should be able to adjust its computational complexity and energy consumption as demanded by the situation and its environment.
標簽: performing and communica streaming
上傳時間: 2014-01-21
上傳用戶:pompey
Digital Signal and Image Processing Using MATLAB The most important theoretical aspects of image and signal processing (ISP) for both deterministic and random signals are covered in this guide to using MATLAB® . The discussion is also supported by exercises and computer simulations relating to real applications such as speech processing and fetal-heart–rhythm tracking, and more than 200 programs and functions for numerical experiments are provided with commentary.
標簽: theoretical Processing important Digital
上傳時間: 2016-07-08
上傳用戶:z1191176801
Today s ActionScript-based applications require increasingly sophisticated architectures and code. This book aids intermediate and advanced ActionScript developers in learning how to plan and build applications more effectively. You ll learn how to apply design patterns as solutions to common programming scenarios. Beyond a reference, Advanced ActionScript with Design Patterns is a practical guide complete with sample mini-applications illustrating each design pattern. The accompanying CD includes a trial version of Flash 8 along
標簽: ActionScript-based architectures sophisticated applications
上傳時間: 2016-08-17
上傳用戶:z754970244
The invention of the compound additive for alkaline PH value of more than 13 strong base will not only be able to prevent soil acidification, can effectively improve the soil acidic, as well as the rich soil of minerals, in the air to absorb the carbon and nitrogen for The use of plants.
標簽: invention compound additive alkaline
上傳時間: 2013-12-08
上傳用戶:xauthu
The USB Multi-Interface driver is a replacement driver for the system provided Multi-Interface driver. This driver was developed to overcome some bugs that are included in the build in driver and to introduce new features. The driver is compatible to the system provided Multi-Interface driver. If the driver is installed on a system, it does not automatically replace the system provided driver. It exists parallel to the system driver and is assigned to a device during the installation process.
標簽: Multi-Interface driver replacement provided
上傳時間: 2017-02-11
上傳用戶:asddsd